DESC:HIGH VOLTAGE SAFETY SYSTEM FOR ELECTRIC VEHICLES
CROSS REFERENCE TO RELATED APPLICATIONS
The present application claims priority from Indian Provisional Patent Application No. 202521000477 filed on 02/01/2025, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD
Generally, the present disclosure relates to safety systems for electric vehicles. Particularly, the present disclosure relates to a high-voltage safety system.
BACKGROUND
High-voltage power delivery refers to the controlled transmission of electrical energy at elevated voltage levels for efficient operation of setups such as electric vehicles, industrial automation units, and energy storage networks. The distribution of high-voltage energy requires precise management of electrical connections and protective mechanisms to prevent hazardous conditions. The fault detection serves as a critical aspect of high-voltage power apparatus, enabling the identification of abnormal states such as open circuits, short circuits, and insulation breakdowns that compromise operational safety and performance. Continuous monitoring and timely detection of electrical faults ensure uninterrupted energy transfer and protection of equipment and personnel.
The existing technologies primarily employ voltage and current sensing, impedance monitoring, and interlock loop continuity verification. The conventional methods rely on passive interlock circuits that detect disconnections based on open-loop continuity signals or resistance variations across connector terminals. The closest technology to modern fault detection architectures involves the use of high-voltage interlock loop arrangements that monitor connection integrity across multiple components and connectors. The above-mentioned arrangements operate by transmitting a low-voltage continuity signal through interconnected paths, generating an alert signal upon detecting a circuit interruption or abnormal resistance pattern.
However, there are certain problems associated with the existing or above-mentioned mechanism for fault detection in high-voltage power delivery that arise in detecting partial faults, signal degradation, or subtle mismatches that occur without complete loss of continuity. Further, the electrical noise, contact wear, and environmental factors frequently lead to false positives or delayed detection, reducing reliability and response accuracy. Furthermore, the conventional interlock-based mechanisms lack the ability to identify minor discrepancies or corrupted signal transmission that precede critical failures. The absence of precise verification mechanisms for transmitted signals restricts diagnostic efficiency and compromises apparatus protection in high-voltage environments.
Therefore, there exists a need for a secure, interoperable, and automated alternative for fault detection in high-voltage power delivery.
SUMMARY
An object of the present disclosure is to provide a system for fault detection in high-voltage power delivery.
Another object of the present disclosure is to provide a method of fault detection in high-voltage power delivery.
Yet another object of the present disclosure is to provide a system and a method of providing high precision in fault detection.
In accordance with a first aspect of the present disclosure, there is provided a system for fault detection in high-voltage power delivery, the system comprises:
- at least one high-voltage battery electrically coupled to a plurality of high-voltage components via a plurality of high-voltage connectors;
- a high-voltage interlock loop circuit, wherein the high-voltage interlock loop circuit comprises a plurality of signal lines electrically connected to the at least one high-voltage battery, the plurality of high-voltage components, and the plurality of high-voltage connectors;
- a control module electrically connected to the high-voltage interlock loop circuit and configured to transmit a code via the high-voltage interlock loop circuit; and
- a receiver module operatively connected to the control module and the high-voltage interlock loop circuit and configured to receive the code,
wherein the control module is configured to disconnect the at least one high-voltage battery and the plurality of high-voltage components based on a mismatch between the code transmitted via the control module and the code received via the receiver module.
The system for fault detection in high-voltage power delivery, as described in the present disclosure, is advantageous in terms of ensuring high precision in the fault detection by employing the encoded code and the redundancy-based verification through the encoder circuit and the correction code generator. Further, the integration of the isolation device provides rapid disconnection of the high-voltage battery and the high-voltage components, ensuring immediate protection from electrical faults. Furthermore, the benefit of periodic status signals establishes continuous verification of isolation integrity and enhances system reliability. Moreover, the error-detection coding algorithm reduces the false positives and ensures accurate identification of fault locations within the high-voltage interlock loop circuit. Additionally, the overall configuration enhances operational safety, minimizes electrical hazards, and extends the service life of the high-voltage power delivery system.
In accordance with another aspect of the present disclosure, there is provided a method of fault detection in high-voltage power delivery, the method comprising:
- generating a code, via a high-voltage interlock loop circuit ;
- detecting errors in the code based on an error-detection coding algorithm, via the receiver module;
- detecting a mismatch between the error-detected code and the predetermined code based on a bitwise comparison, via the receiver module;
- generating a fault signal based on the detected mismatch, via the receiver module; and
- initiating disconnection between at least one high-voltage battery and a plurality of high-voltage components based on actuation of an isolation device, via the control module.
Additional aspects, advantages, features, and objects of the present disclosure would be made apparent from the drawings and the detailed description of the illustrative embodiments constructed in conjunction with the appended claims that follow.
It will be appreciated that features of the present disclosure are susceptible to being combined in various combinations without departing from the scope of the present disclosure as defined by the appended claims.
BRIEF DESCRIPTION OF DRAWINGS
The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.
Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:
Figure 1 illustrates a block diagram of a system for fault detection in high-voltage power delivery, in accordance with an embodiment of the present disclosure.
Figure 2 illustrates a flow chart of a method of fault detection in high-voltage power delivery, in accordance with another embodiment of the present disclosure.
In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the non-underlined number to the item. When a number is non-underlined and accompanied by an associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.
DETAILED DESCRIPTION
The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognize that other embodiments for carrying out or practicing the present disclosure are also possible.
As used herein, the term “fault detection” refers to a systematic process of identifying irregularities that compromise the safe operation of electrical circuitry. Specifically, the fault detection involves continuous monitoring of high-voltage connections, components, and interlock loop circuits through the transmission of encoded signals that are verified at a receiving end using error-detection algorithms and redundancy bits. Further, a mismatch between the transmitted signal and the decoded signal represents an abnormal electrical state, leading to the generation of a fault signal and a subsequent actuation of an isolation device for the disconnection of the high-voltage battery from the connected components. Furthermore, the fault detection operates through multiple approaches, including, but not limited to, error-detection coding that identifies data corruption, redundancy-based verification that ensures integrity of the transmitted signal, and bitwise comparison techniques that confirm exact signal matching. Moreover, each type of the fault detection ensures that even minor deviations, such as, but not limited to, a single erroneous bit or signal disturbance in the interlock loop, trigger immediate protective actions, thereby preventing unsafe electrical flow in high-voltage environments.
As used herein, the term “high-voltage power delivery” refers to the controlled transmission of electrical energy at elevated voltage levels to supply demanding loads in automotive, industrial, and energy storage applications. Specifically, the high-voltage power delivery involves a high-voltage battery interfaced with multiple high-voltage components through dedicated connectors and monitored by an interlock loop circuit that ensures safe continuity of the electrical path. Further, the power delivery at high-voltage levels requires precise fault monitoring through control and receiver modules that continuously verify the integrity of the transmission by exchanging the encoded signals and initiating disconnection under abnormal conditions. Furthermore, the types of high-voltage power delivery include, but are not limited to, direct current transfer from the battery to the traction inverters and the auxiliary converters, alternating current transfer to motor drive mechanisms, and mixed-mode transfer supporting both propulsion and auxiliary subsystems. Moreover, each type demands reliable connectors, secure signal lines, and responsive isolation devices to maintain an uninterrupted supply during normal operation and to enforce immediate shutdown during fault events.
As used herein, the term “high-voltage battery” refers to an energy storage unit designed to operate at the elevated voltage ranges for supplying power to the demanding electrical loads in automotive and stationary applications. Specifically, the high-voltage battery integrates multiple electrochemical cells connected in at least one of series and parallel arrangements to achieve the required voltage and capacity, with an associated management architecture ensuring controlled charging, discharging, thermal regulation, and safety compliance. Further, within the fault detection framework, the high-voltage battery functions as the primary source of electrical energy, interfacing with the high-voltage components through the connectors and the monitored signal lines, where the encoded signal transmission and verification ensure that any abnormal condition prompts isolation to protect the overall architecture. Furthermore, the types of high-voltage battery include, but are not limited to, lithium-ion-based configurations for high energy density, nickel-metal hydride configurations for robust cycle life, and emerging solid-state chemistries designed for enhanced safety and compactness. Moreover, each type of the high-voltage battery requires integration with interlock loops, control modules, and isolation devices to maintain secure energy transfer under normal operation and to enforce protective disconnection during fault conditions.
As used herein, the term “high-voltage components” refers to electrical devices and subsystems designed to operate at elevated voltage levels for performing power conversion, distribution, and control functions in the high-voltage power delivery systems. Specifically, the high-voltage components include, but are not limited to, inverters, converters, motors, contactors, and sensors that are electrically coupled to the high-voltage battery through dedicated connectors and monitored by the interlock loop circuit. Further, the high-voltage components participate in the active energy transfer, receive the encoded signals for the fault detection, and respond to the isolation commands to ensure safe operation under abnormal conditions. Furthermore, the types of high-voltage components include, but are not limited to, traction inverters that convert direct current to alternating current for the electric motors, DC-DC converters that regulate voltage for the auxiliary assemblies, electric motors for propulsion, and contactors or relays that establish or interrupt high-voltage pathways. Moreover, each of the high-voltage components operates under controlled electrical states and integrates with the control and receiver modules to maintain integrity, enabling immediate disconnection in response to detected faults and preventing unsafe electrical flow.
As used herein, the term “high-voltage connectors” refers to specialized electrical interfaces designed to establish secure and reliable electrical connections between the high-voltage batteries and the high-voltage components for efficient energy transfer. Specifically, the high-voltage connectors provide a mechanically robust and electrically insulated pathways that maintain signal integrity and prevent leakage or arcing under the elevated voltage conditions. Further, the high-voltage connectors support the transmission of the encoded signals through the interlock loop circuit for the fault detection and enable actuation of the isolation devices to disconnect the high-voltage battery from the connected high-voltage components upon detection of the abnormalities. Furthermore, the types of high-voltage connectors include, but are not limited to, plug-and-socket connectors for the modular battery apparatus, bolted or clamped connectors for permanent high-current paths, and spring-loaded or contact pin connectors for rapid assembly and maintenance. Moreover, each high-voltage connector integrates with control and receiver modules to ensure continuous monitoring, signal verification, and immediate disconnection during the fault events, maintaining operational safety and reliability in the high-voltage power delivery systems.
As used herein, the term “high-voltage interlock loop circuit” refers to the safety circuit designed to continuously monitor the integrity of the electrical connections in the high-voltage power delivery systems and ensure the secure operation of connected high-voltage components. Specifically, the high-voltage interlock loop circuit comprises multiple signal lines electrically coupled to the high-voltage battery, high-voltage components, and high-voltage connectors, enabling the transmission of the encoded signals for the fault detection. Further, the high-voltage interlock loop circuit facilitates detection of abnormal conditions by allowing the control module to transmit a code and the receiver module to decode and verify the code, with any mismatch triggering the fault signal and actuation of the isolation devices for the safe disconnection. Furthermore, the types of high-voltage interlock loop circuits include, but are not limited to, series loop circuits where all the high-voltage components and the high-voltage connectors are linked in a single monitored path, parallel loop circuits that provide redundancy for enhanced safety, and hybrid loop circuits combining the series and the parallel paths to achieve both reliability and fault tolerance. Moreover, each type of the high-voltage interlock loop circuit integrates with the encoding, error-detection, and the isolation mechanisms to maintain continuous monitoring, ensure signal integrity, and enforce immediate protective action during the detected faults.
As used herein, the term “signal lines” refers to conductive pathways designed to transmit electrical signals between the high-voltage components in the high-voltage power delivery and monitoring architectures, ensuring accurate communication and control. Specifically, the signal lines interconnect the high-voltage batteries, high-voltage components, high-voltage connectors, and the high-voltage interlock loop circuit, carrying the encoded codes from the control module to the receiver module for the fault detection. Further, the signal lines support the error-detection coding, redundancy bits, and bitwise comparison processes, enabling the detection of the mismatches that trigger the fault signals and the subsequent actuation of the isolation devices for safe disconnection. Furthermore, the types of signal lines include, but are not limited to, shielded twisted-pair lines that minimize electromagnetic interference, coaxial lines that maintain signal integrity over high frequencies, and multi-core cables that provide multiple parallel pathways for redundancy and increased reliability. Moreover, each type of the signal line ensures precise transmission of the encoded signals, continuous monitoring of the electrical circuitry, and immediate response to the faults, maintaining operational safety and integrity of high-voltage power delivery systems.
As used herein, the term “control module” refers to an electronic unit responsible for managing, monitoring, and regulating operations within the high-voltage power delivery and the fault detection frameworks. Specifically, the control module generates the encoded signals for transmission through the high-voltage interlock loop circuits, applies the error-detection coding algorithms, adds the redundancy bits via the correction code generators, receives the fault signals from the receiver module, and actuates the isolation devices to disconnect the high-voltage battery from the high-voltage connected components under abnormal conditions. Further, the control module ensures the continuous verification of the signal integrity, oversees the disconnection protocols, and coordinates the status feedback from the isolation devices to maintain the safe operation of the high-voltage power delivery system. Furthermore, the types of control modules include, but are not limited to, microcontroller-based modules that execute the software-driven monitoring and decision-making, FPGA-based modules that provide the high-speed parallel processing for the real-time fault detection, and hybrid modules combining programmable logic and embedded processors for enhanced flexibility and reliability. Moreover, each type of the control module integrates with the encoding circuits, the receiver interfaces, and the isolation actuation mechanisms to enforce immediate protective action and maintain uninterrupted operational safety in the high-voltage environments.
As used herein, the term “receiver module” refers to an electronic subsystem designed to receive, decode, and verify signals transmitted within the high-voltage power delivery and the fault detection systems, ensuring the integrity and safe operation of the high-voltage connected components. Specifically, the receiver module decodes the transmitted code using the error-detection algorithms, performs the bitwise comparison with a predetermined reference code, detects mismatches or erroneous bits, and generates the fault signals that instruct the control module to actuate the isolation devices and disconnect the high-voltage battery from high-voltage components. Further, the receiver module continuously monitors the encoded signals transmitted through the high-voltage interlock loop, enabling real-time identification of the abnormal electrical conditions and ensuring rapid protective action. Furthermore, the types of receiver modules include, but are not limited to, microcontroller-based receivers for the software-driven decoding and error detection, FPGA-based receivers for high-speed parallel signal verification, and hybrid receivers combining programmable logic and embedded processing to enhance accuracy, reliability, and responsiveness. Moreover, each type of the receiver module integrates with the signal lines, control modules, and isolation devices to maintain secure energy transfer and immediate fault mitigation in the high-voltage power delivery systems.
As used herein, the term “encoder circuit” refers to an electronic subsystem designed to convert information into a coded format for secure transmission and verification within the high-voltage power delivery and the fault detection systems. Specifically, the encoder circuit generates the code that incorporates the error-detection algorithms and the redundancy bits, transmitting the encoded signal through the high-voltage interlock loop circuit to ensure the integrity of communication between the control module and receiver module. Further, the encoded signal enables the receiver module to perform the bitwise comparison and detect the mismatches, triggering the fault signals and initiating the actuation of the isolation devices to disconnect the high-voltage battery from the high-voltage connected components under abnormal conditions. Furthermore, the types of encoder circuits include, but are not limited to, linear block encoders that apply structured redundancy for error detection, cyclic redundancy check (CRC) encoders that generate cyclic codes for high reliability, and convolutional encoders that produce continuous streams of encoded data for real-time monitoring. Moreover, each type of encoder circuit integrates with control modules, high-voltage interlock loop circuits, and receiver modules to maintain secure signal transmission, ensure accurate fault detection, and enforce immediate protective action in the high-voltage power delivery systems.
As used herein, the term “error-detection coding algorithm” refers to a systematic computational method designed to identify errors in transmitted data within the high-voltage power delivery and the fault detection systems. Specifically, the error-detection coding algorithm encodes the signal with additional redundancy bits or structured patterns, enabling the receiver module to decode the received signal, perform the bitwise comparison with a predetermined code, and detect the mismatches or erroneous bits that indicate abnormal electrical conditions. Further, the algorithm ensures that any corruption or alteration of the transmitted signal through the high-voltage interlock loop triggers the generation of the fault signal, prompting the control module to actuate the isolation devices and disconnect the high-voltage battery from the connected components. Furthermore, the types of error-detection coding algorithms include, but are not limited to, parity-check algorithms that append single or multiple parity bits for simple error identification, cyclic redundancy check (CRC) algorithms that perform polynomial division to detect burst errors, and checksum algorithms that compute summations of data segments for integrity verification. Moreover, each type of error-detection coding algorithm integrates with the encoder circuits, receiver modules, and control modules to maintain signal integrity, enable real-time fault identification, and enforce immediate protective action in the high-voltage power delivery systems.
As used herein, the term “correction code generator” refers to an electronic subsystem designed to enhance the reliability of the transmitted signals by adding redundancy bits that support error detection and correction within the high-voltage power delivery and the fault detection systems. Specifically, the correction code generator generates the additional bits appended to the transmitted code, enabling the receiver module to detect the mismatches, identify erroneous bits, and trigger the fault signals for actuation of the isolation devices, ensuring safe disconnection of the high-voltage battery from the high-voltage connected components under abnormal conditions. Further, the correction code generator implements systematic algorithms that produce structured redundancy, allowing the control and receiver modules to verify the signal integrity and maintain continuous monitoring of the high-voltage interlock loop circuits. Furthermore, the types of correction code generators include, but are not limited to, parity-bit generators that add single or multiple parity bits, cyclic redundancy check (CRC) generators that compute polynomial-based redundancy, and Hamming code generators that introduce multi-bit patterns capable of both error detection and single-bit correction. Moreover, each type of correction code generator integrates with the encoder circuits, error-detection coding algorithms, and control modules to maintain accurate fault identification and enforce the immediate protective action in the high-voltage power delivery systems.
As used herein, the term “redundancy bit” refers to an additional binary element added to the transmitted code to enable the error detection and enhance the reliability of the signal communication within the high-voltage power delivery and the fault detection systems. Specifically, the redundancy bits supplement the primary code generated by the control module and encoded by the encoder circuit, allowing the receiver module to identify the mismatches, detect erroneous bits, and generate the fault signals that actuate the isolation devices for safe disconnection of the high-voltage battery from the high-voltage connected components under abnormal conditions. Further, the redundancy bits maintain the integrity of the transmitted signal along the high-voltage interlock loop circuit by supporting the error-detection coding algorithms and the correction code generators, ensuring continuous monitoring and immediate protective action. Furthermore, the types of redundancy bits include, but are not limited to, single parity bits that verify even or odd parity, multiple parity bits applied across data segments for the enhanced detection, cyclic redundancy check (CRC) bits computed from the polynomial algorithms to identify the burst errors, and Hamming code bits that provide both error detection and single-bit correction capability. Moreover, each type of redundancy bit integrates with the encoder circuits, receiver modules, and control modules to secure the accurate fault detection and maintain safe operation in the high-voltage power delivery systems.
As used herein, the term “bitwise comparison” refers to a computational process that evaluates each individual bit of the transmitted code against a corresponding bit of a reference or the predetermined code to detect discrepancies in the high-voltage power delivery and the fault detection systems. Specifically, the bitwise comparison enables the receiver module to analyze the decoded signal from the high-voltage interlock loop circuit, identify any differing bits, generate the fault signal based on the detected mismatches, and instruct the control module to actuate the isolation devices for disconnection of the high-voltage battery from the high-voltage connected components under abnormal conditions. Further, the process ensures precise verification of signal integrity, allowing immediate identification of the errors introduced during transmission or arising from component faults. Furthermore, the types of bitwise comparison include, but are not limited to, one-to-one comparison that checks each transmitted bit against the corresponding reference bit, masked comparison that evaluates only the selected bits of interest while ignoring others, and parallel comparison that simultaneously compares multiple bits across data words for high-speed verification. Moreover, each type of bitwise comparison integrates with the receiver modules, error-detection algorithms, and control modules to maintain accurate fault detection and enforce safe operation in high-voltage power delivery systems.
As used herein, the term “predetermined code” refers to a predefined sequence of binary values used as a reference standard for verifying the integrity of transmitted signals within high-voltage power delivery and fault detection systems. Specifically, the predetermined code serves as the benchmark for the receiver module to perform the bitwise comparison with the decoded signal received through the high-voltage interlock loop, enabling detection of the mismatches or erroneous bits that generate the fault signals and prompt the control module to actuate the isolation devices, disconnecting the high-voltage battery from the high-voltage connected components under abnormal conditions. Further, the predetermined code ensures consistency in the signal verification, supporting the error-detection coding algorithms and the redundancy bits to maintain continuous monitoring and secure energy transfer. Furthermore, the types of predetermined codes include, but are not limited to, fixed static codes that remain constant during operation, dynamically generated codes that change at defined intervals for enhanced security, cyclic codes derived from polynomial algorithms for error detection, and Hamming-based codes that allow both error detection and single-bit correction. Moreover, each type of predetermined code integrates with the encoder circuits, receiver modules, and control modules to enable accurate fault detection and enforce immediate protective action in high-voltage power delivery systems.
As used herein, the term “fault signal” refers to an electrical or logical indication generated to signify the detection of an abnormal condition in the high-voltage power delivery and the fault detection systems. Specifically, the fault signal originates from the receiver module upon identification of a mismatch between the decoded transmitted code and the predetermined reference code, resulting from errors detected by the error-detection algorithms or discrepancies in the redundancy bits. Further, the fault signal instructs the control module to actuate isolation devices, initiating disconnection of the high-voltage battery from the high-voltage connected components and ensuring safe interruption of electrical flow under unsafe conditions. Furthermore, the types of fault signals include, but are not limited to, digital logic signals that represent binary states of normal or fault conditions, analog signals that vary in magnitude to indicate the severity of the detected fault, pulse-based signals that convey fault occurrences through transient pulses, and networked communication signals that transmit the fault status to supervisory units for monitoring and logging. Moreover, each type of fault signal integrates with the control modules, receiver modules, and isolation devices to enable real-time fault detection, immediate protective action, and maintenance of operational safety in high-voltage power delivery systems.
As used herein, the term “isolation device” refers to an electrical component designed to physically and electrically separate the high-voltage battery from the connected high-voltage components to ensure safe operation and prevent hazardous conditions in the power delivery systems. Specifically, the isolation device responds to the fault signals generated by the receiver module, actuated by the control module, to interrupt the flow of electrical energy, thereby protecting the power delivery system from damage caused by mismatches, signal errors, or abnormal electrical states detected through the encoded signal verification and the bitwise comparison. Further, the isolation device also transmits the periodic status signals to the control module, providing real-time feedback on the electrical state of disconnection and ensuring continuous monitoring and the power delivery system integrity. Furthermore, the types of isolation devices include, but are not limited to, contactors that establish or break the high-current paths through the mechanical switching, relays that provide the electromechanical actuation for controlled disconnection, solid-state switches that enable rapid electronic interruption without the mechanical movement, and hybrid devices that combine the mechanical and solid-state switching for enhanced reliability and speed. Moreover, each type of isolation device integrates with the control modules, receiver modules, and high-voltage interlock loops to enforce immediate protective action and maintain operational safety in the high-voltage power delivery systems.
As used herein, the term “periodic status signal” refers to a recurrent electrical or digital signal transmitted to indicate the operational state of the isolation device and the continuity of the high-voltage power delivery systems. Specifically, the periodic status signal communicates the electrical state of disconnection between the high-voltage battery and the high-voltage connected components, providing the control module with continuous feedback on the effectiveness of the fault response and confirming the proper actuation of the isolation devices following the detection of mismatches or errors in the transmitted code. Further, the periodic status signals ensure real-time monitoring of the power delivery system, enabling verification of safe disconnection and maintenance of the power delivery system's integrity during abnormal conditions. Furthermore, the types of periodic status signals include, but are not limited to, digital pulse signals that convey the binary on/off states, analog voltage signals that vary to indicate the specific disconnection conditions, serial communication signals transmitted over data lines for the integrated system monitoring, and networked signals that report status to supervisory control units for logging and analysis. Moreover, each type of the periodic status signal integrates with the isolation devices, control modules, and receiver modules to provide continuous operational feedback, support the fault detection, and enforce the safe operation in the high-voltage power delivery systems.
In accordance with a first aspect of the present disclosure, there is provided a system for fault detection in high-voltage power delivery, the system comprises:
- at least one high-voltage battery electrically coupled to a plurality of high-voltage components via a plurality of high-voltage connectors;
- a high-voltage interlock loop circuit, wherein the high-voltage interlock loop circuit comprises a plurality of signal lines electrically connected to the at least one high-voltage battery, the plurality of high-voltage components, and the plurality of high-voltage connectors;
- a control module electrically connected to the high-voltage interlock loop circuit and configured to transmit a code via the high-voltage interlock loop circuit; and
- a receiver module operatively connected to the control module and the high-voltage interlock loop circuit and configured to receive the code,
wherein the control module is configured to disconnect the at least one high-voltage battery and the plurality of high-voltage components based on a mismatch between the code transmitted via the received module.
Referring to figure 1, in accordance with an embodiment, there is described a system 100 for fault detection in high-voltage power delivery. The system 100 comprises at least one high-voltage battery 102 electrically coupled to a plurality of high-voltage components 104 via a plurality of high-voltage connectors 106. Further, the system 100 comprises a high-voltage interlock loop circuit 108, wherein the high-voltage interlock loop circuit 108 comprises a plurality of signal lines 110 electrically connected to the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Furthermore, the system 100 comprises a control module 112, electrically connected to the high-voltage interlock loop circuit 108 and configured to transmit a code via the high-voltage interlock loop circuit 108. Moreover, the system 100 comprises a receiver module 114 operatively connected to the control module 112 and the high-voltage interlock loop circuit 108 and configured to receive the code. Additionally, the control module 112 is configured to disconnect the at least one high-voltage battery 102 and the plurality of high-voltage components 104 based on a mismatch between the code transmitted via the control module 112 and the code received via the receiver module 114. Further, the control module 112 comprises an encoder circuit 116 and a correction code generator 118. Furthermore, the control module 112 is configured to actuate at least one isolation device 120.
The system 100 operates by continuously monitoring the integrity of high-voltage power delivery through the high-voltage interlock loop circuit 108 electrically connected to the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Specifically, the control module 112 generates and transmits the code via the high-voltage interlock loop circuit 108. The encoder circuit 116 within the control module 112 encodes the transmitted code using an error-detection coding algorithm, and the correction code generator 118 adds redundancy bits to enhance the error-detection capability. Further, the receiver module 114 receives the transmitted code, decodes the received signal, and performs a bitwise comparison with a predetermined code corresponding to the transmitted code. A mismatch is detected when at least one bit differs from the predetermined code, leading to the generation of a fault signal that identifies discrepancies in the high-voltage interlock loop circuit 108 or the high-voltage connected components 104. Furthermore, the process of operation is initiated by generating the code through the high-voltage interlock loop circuit 108 and applying the error-detection coding algorithm via the encoder circuit 116. The receiver module 114 performs error detection on the received code, identifies bitwise mismatches, and generates the fault signal upon detection of discrepancies. Moreover, the control module 112 receives the fault signal and actuates at least one isolation device 120 to interrupt the electrical connection between the at least one high-voltage battery 102 and the plurality of high-voltage components 104. The isolation device 120 transmits a periodic status signal to the control module 112, indicating the electrical state of disconnection and confirming proper actuation. The indication ensures real-time fault detection, isolation, and verification of high-voltage component status within the system 100. Consequently, enhanced safety and reliability are achieved in high-voltage power delivery by preventing undesired electrical faults and reducing the risk of damage to the high-voltage components 104 and the battery 102. The integration of the encoder circuit 116 and correction code generator 118 ensures the robust error detection and fault identification, while the actuation of the isolation device 120 provides immediate disconnection upon detection of a mismatch. Additionally, the system 100 enables continuous monitoring through the periodic status signals, minimizes downtime, and ensures the integrity of the high-voltage interlock loop circuit 108. The fault detection process improves operational reliability, enhances protection of electrical assets, and establishes a systematic mechanism for high-voltage fault management.
In an embodiment, the control module 112 comprises an encoder circuit 116 and wherein the encoder circuit 116 is configured to encode the transmitted code by applying an error-detection coding algorithm. Specifically, the system 100 functions by enabling the control module 112 to generate the code for transmission through the high-voltage interlock loop circuit 108, with the encoder circuit 116 executing the encoding process before the transmission. The encoder circuit 116 applies the error-detection coding algorithm to convert the raw binary sequence into a structured code containing check bits or parity information. Further, the encoded signal travels through the plurality of signal lines 110 that electrically connect the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Any discontinuity, degradation, or change in connection state alters the encoded signal pattern due to disturbances in signal propagation or loss of continuity. Furthermore, the receiver module 114 captures the transmitted encoded signal for decoding and subsequent analysis, forming the foundation for reliable fault detection in the high-voltage circuits. The process associated with the system 100 involves encoding, transmitting, and verifying the structured code designed for error identification. Moreover, the encoder circuit 116 within the control module 112 utilizes the predefined error-detection coding algorithm, such as, but not limited to, cyclic redundancy check or Hamming code, to embed additional parity or check bits into the transmitted code. The receiver module 114 decodes the received data and reconstructs the original code using the same algorithmic reference. Additionally, the mismatch between the reconstructed and expected code sequences indicates a deviation from the normal electrical continuity in the high-voltage interlock loop circuit 108. The resulting error information is processed by the control module 112, which generates the corresponding fault response to ensure isolation of the affected portion of the high-voltage system 100. Consequently, the inclusion of the encoder circuit 116 is performed for the enhancement of diagnostic precision and communication reliability across the high-voltage interlock loop circuit 108. The encoded transmission minimizes false fault detections caused by electromagnetic interference and signal degradation, ensuring accurate monitoring of electrical integrity. Subsequently, the structured error-detection process improves the system 100 responsiveness by rapidly identifying specific fault conditions and enabling immediate isolation through the subsequent control actions. The overall configuration enhances safety by preventing uncontrolled high-voltage exposure, reduces the system 100 downtime through rapid diagnostic feedback, and extends component lifespan by avoiding prolonged the fault conditions. Ultimately, the integrated encoding process establishes a robust fault-tolerant communication framework that ensures consistent and verifiable high-voltage fault detection performance.
In an embodiment, the control module 112 comprises a correction code generator 118, and wherein the correction code generator 118 is configured to add at least one redundancy bit in the transmitted code. Specifically, the system 100 operates by generating a coded signal through the control module 112, which incorporates the correction code generator 118 configured to enhance the integrity of data transmission within the high-voltage interlock loop circuit 108. The correction code generator 118 introduces at least one redundancy bit into the transmitted code to form an error-resilient data structure. Further, the redundancy bit functions as an additional verification parameter that ensures accurate detection of any distortion or alteration in the transmitted sequence. The encoded signal, containing the redundancy bit, is delivered through the plurality of signal lines 110 that electrically couple the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Furthermore, any deviation in circuit continuity, insulation performance, or connector engagement modifies the signal structure, resulting in an identifiable inconsistency that is detected by the receiver module 114. The process implemented within the system 100 involves the systematic encoding, redundancy addition, and verification of signal consistency. Moreover, the control module 112 initiates the code generation and passes the data to the correction code generator 118, that applies the redundancy-based algorithm such as, but not limited to, parity augmentation or forward error correction. The generated redundant code is transmitted through the high-voltage interlock loop circuit 108, forming a continuous monitoring loop across the high-voltage network. Additionally, the receiver module 114 decodes the received data and performs the structural comparison between the received redundant bits and the expected redundancy pattern. Any bit-level discrepancy within the redundant portion of the signal indicates the deviation in electrical continuity or signal distortion. Upon identification of the inconsistency, the fault signal is generated and relayed to the control module 112, which initiates isolation through the isolation device 120, ensuring immediate protection of the high-voltage system 100. Consequently, integrating the correction code generator 118 is achieved for the establishment of an advanced redundancy-based monitoring mechanism that enhances fault detection accuracy within the high-voltage interlock loop circuit 108. The addition of redundancy bits strengthens the system’s 100 ability to identify both transient and persistent errors, ensuring reliable fault discrimination under the high-voltage operating conditions. Subsequently, the enhanced data verification process minimizes the probability of the undetected electrical discontinuities and prevents unintended power delivery to the faulted circuits. The configuration improves the precision of diagnostic evaluation, supports predictive maintenance by identifying early-stage electrical degradation, and ensures safety by facilitating immediate isolation. Ultimately, the redundancy-based communication framework increases operational reliability, reduces the system 100 downtime, and extends the functional lifespan of the high-voltage components 104 and the high-voltage battery 102.
In an embodiment, the receiver module 114 is configured to decode the received code and detect errors based on the error-detection coding algorithm. Specifically, the system 100 performs fault detection by enabling the receiver module 114 to decode the received code transmitted through the high-voltage interlock loop circuit 108 and detect errors using the error-detection coding algorithm employed during encoding by the control module 112. The encoded signal, transmitted through the plurality of signal lines 110, traverses the electrical path that connects the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Further, the receiver module 114 receives the transmitted code and initiates the decoding process that reconstructs the original code sequence from the received data. The decoding process identifies any bit-level inconsistency caused by discontinuities or interference in the high-voltage circuit. Furthermore, the decoded data is then analyzed by the receiver module 114 to detect faults based on deviations from the expected coding structure, establishing a direct correlation between detected errors and physical abnormalities in the electrical network. The process involves signal decoding, error detection, and verification through algorithmic evaluation of the received code. Moreover, the receiver module 114 applies the error-detection coding algorithm to the received signal, separating redundant bits or parity bits from the primary data. The algorithm calculates checksum or parity parameters and compares the results with the predetermined code in the original encoding scheme. Additionally, any deviation in the computed parameters indicates that an alteration has occurred during signal transmission across the high-voltage interlock loop circuit 108. The detected inconsistency signifies a potential electrical fault, such as, but not limited to, an open circuit, loose connector, or damaged insulation. The receiver module 114 processes the decoded data, generates the fault indication signal, and transmits the fault signal to the control module 112, ensuring that appropriate isolation or protective actions are initiated to maintain electrical safety. Consequently, the establishment of a closed-loop communication structure is achieved through the decoding and error-detection operation of the receiver module 114, which ensures real-time verification of signal integrity in the high-voltage domain. The decoding process enhances the system 100 reliability by distinguishing actual electrical faults from temporary transmission disturbances. Subsequently, the detection of errors based on the applied coding algorithm ensures high sensitivity to minor electrical anomalies, enabling proactive isolation before fault escalation. The configuration ensures robust diagnostic performance under varying electrical conditions and reduces the system 100 vulnerability to external noise. Ultimately, the advantages include, but are not limited to, improved operational safety through precise fault localization, reduced maintenance requirements due to early error identification, enhanced signal reliability within the high-voltage interlock loop circuit 108, and extended service life of the high-voltage battery 102 and high-voltage components 104 through controlled disconnection and continuous monitoring.
In an embodiment, the receiver module 114 is configured to perform a bitwise comparison of the decoded received code with a predetermined code corresponding to the transmitted code. Specifically, the system 100 operates by enabling the receiver module 114 to perform the bitwise comparison of the decoded code with the predetermined code corresponding to the transmitted code, ensuring precise verification of electrical continuity across the high-voltage interlock loop circuit 108. The control module 112 transmits the encoded signal through the plurality of signal lines 110, electrically connecting the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Further, the receiver module 114 decodes the received signal and conducts a bit-by-bit comparison against the stored predetermined code. Any deviation in individual bits indicates an anomaly in the high-voltage network, such as, but not limited to, an open connection, insulation degradation, or connector fault. Furthermore, the receiver module 114 generates the fault signal upon detection of any mismatch, signaling the control module 112 to initiate protective actions. The process involves systematic bitwise analysis for the fault identification within the high-voltage interlock loop circuit 108. Moreover, the receiver module 114 retrieves the predetermined code associated with the transmitted sequence and performs a sequential comparison with the decoded received code. Each bit is evaluated for equality, and any discrepancy triggers immediate recognition of the fault condition. Additionally, the process ensures that even a single-bit deviation is detected, establishing a highly sensitive and reliable monitoring mechanism. Upon detection of a mismatch, the receiver module 114 generates the fault signal and communicates the information to the control module 112. The control module 112 responds by actuating the isolation device 120 to disconnect the at least one high-voltage battery 102 from the plurality of high-voltage components 104, preventing propagation of the fault through the system 100. Consequently, the bitwise comparison ensures highly accurate detection of electrical discontinuities and precise localization of faults within the high-voltage interlock loop circuit 108. The configuration prevents false triggering by distinguishing between minor transmission noise and actual circuit anomalies. Subsequently, the system 100 improves safety by enabling rapid isolation of affected high-voltage components, minimizing the risk of electrical hazards. The advantages of bitwise comparison include, but are not limited to, enhanced reliability of the high-voltage power delivery, early identification of potential faults, reduced system 100 downtime, and protection of the plurality of high-voltage components 104 and the high-voltage battery 102 from damage. Ultimately, the bitwise verification process establishes a robust fault detection framework that ensures operational stability and continuous monitoring of the high-voltage network integrity.
In an embodiment, the receiver module 114 is configured to detect the mismatch based on at least one different bit and generate a fault signal based on the detected mismatch. Specifically, the system 100 operates by enabling the receiver module 114 to detect mismatches in the received code based on the presence of the at least one different bit identified during decoding and comparison processes. The control module 112 transmits the encoded signal through the high-voltage interlock loop circuit 108 along the plurality of signal lines 110 connecting the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Further, the receiver module 114 decodes the received signal, performs the bitwise comparison with the predetermined code, and identifies any deviation at the bit level. Detection of even a single different bit generates the fault signal, which is immediately transmitted to the control module 112 to initiate protective measures. Furthermore, the system 100 ensures continuous real-time monitoring of electrical continuity and integrity across the high-voltage network. The process involves decoding, bitwise verification, and fault signal generation to ensure rapid identification of electrical anomalies. Moreover, the receiver module 114 applies the error-detection coding algorithm to reconstruct the transmitted code and performs the sequential comparison with the predetermined code. Any bit-level discrepancy is interpreted as the mismatch, indicating potential failures such as, but not limited to, open circuits, damaged connectors, or insulation breakdown. Additionally, the detected mismatch triggers the generation of the fault signal, which is communicated to the control module 112. The control module 112 actuates the isolation device 120 to disconnect the at least one high-voltage battery 102 from the plurality of high-voltage components 104, effectively isolating the faulty segment and maintaining operational safety. Consequently, detecting mismatches based on individual bit differences enhances the precision and responsiveness of the system 100. The approach enables identification of minimal deviations in the high-voltage network continuity, ensuring accurate fault localization and minimizing false positives from transient disturbances or electromagnetic interference. Subsequently, the advantages of the generated fault signal include, but are not limited to, improved electrical safety, rapid isolation of faulted segments, prevention of damage to high-voltage components 104 and the high-voltage battery 102, enhanced system reliability, and reduced downtime. The configuration establishes a robust and sensitive framework for the fault detection, maintaining uninterrupted monitoring and secure operation of the high-voltage interlock loop circuit 108.
In an embodiment, the control module 112 is configured to receive the fault signal and actuate at least one isolation device 120 based on the received fault signal. Specifically, the system 100 operates by transmitting the fault signal from the receiver module 114 to the control module 112 upon detection of the mismatch in the received code within the high-voltage interlock loop circuit 108. The control module 112 receives the fault signal and processes the information to determine the location and severity of the electrical anomaly in the high-voltage network comprising the at least one high-voltage battery 102, the plurality of high-voltage components 104, and the plurality of high-voltage connectors 106. Further, based on the received fault signal, the control module 112 actuates the at least one isolation device 120 to disconnect the affected segment of the high-voltage network, preventing the propagation of faults and ensuring the safety and integrity of the system 100. The actuation occurs in real-time, providing immediate protection against electrical hazards. Furthermore, the process involves receiving, analyzing, and responding to the fault signals to maintain electrical continuity and safety across the high-voltage interlock loop circuit 108. The receiver module 114 detects mismatches in the transmitted code and generates the fault signal, which is transmitted to the control module 112. Moreover, the control module 112 interprets the fault signal and triggers the actuation of the isolation device 120, ensuring separation of the at least one high-voltage battery 102 from the plurality of high-voltage components 104. The process further provides a deterministic response to electrical anomalies and establishes a closed-loop monitoring and control mechanism that isolates faults before escalation. The system 100 maintains continuous monitoring of the high-voltage interlock loop circuit 108 and executes isolation protocols without delay, preserving network integrity. Consequently, the fault signal-based actuation of the isolation device 120 ensures precise, rapid, and reliable disconnection of faulted segments, preventing damage to high-voltage components 104 and the at least one high-voltage battery 102. The advantages of the fault signal-based actuation include, but are not limited to, enhanced operational safety, reduction in electrical hazards, immediate isolation of the affected portions, and minimization of the system 100 downtime. Additionally, the configuration ensures robust protection against transient and persistent faults, extends the service life of the high-voltage components 104, and maintains uninterrupted monitoring of the high-voltage network. The fault-driven isolation mechanism establishes a dependable framework for proactive fault management and real-time safeguarding of high-voltage power delivery systems 100.
In an embodiment, the control module 112 is configured to initiate a disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104 via the actuation of the at least one isolation device 120. Specifically, the system 100 operates by enabling the control module 112 to initiate disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104 through actuation of the at least one isolation device 120 upon detection of the fault signal from the receiver module 114. The control module 112 interprets the fault signal generated due to the mismatch in the transmitted and received codes over the high-voltage interlock loop circuit 108. Further, the control module 112 sends actuation commands to the isolation device 120, which physically interrupts electrical connectivity along the plurality of signal lines 110, ensuring separation of the high-voltage battery 102 from the high-voltage components 104. The disconnection occurs in real-time, preventing fault propagation and maintaining operational safety within the high-voltage network. Furthermore, the process involves receiving fault indications, processing control logic, and actuating isolation devices to safeguard the high-voltage interlock loop circuit 108. The control module 112 receives the fault signal from the receiver module 114, identifies the affected segment, and transmits an actuation command to the isolation device 120. Moreover, the isolation device 120 responds by opening the circuit between the at least one high-voltage battery 102 and the plurality of high-voltage components 104, terminating current flow and electrically isolating the faulted portion. The systematic sequence ensures immediate response to detected anomalies, maintains continuous monitoring, and preserves network integrity by preventing further electrical disturbances or damage to the high-voltage system 100. Consequently, the actuation-based disconnection provides precise, rapid, and reliable isolation of faulted segments within the high-voltage interlock loop circuit 108. The advantages of actuation-based disconnection include, but are not limited to, enhanced safety of the high-voltage components 104 and the at least one high-voltage battery 102, prevention of system-wide electrical hazards, and minimization of damage from transient or persistent faults. Additionally, the configuration ensures uninterrupted monitoring, reduces system downtime, and facilitates controlled management of high-voltage networks. The actuation mechanism establishes a robust, deterministic framework for fault mitigation, improving reliability, operational stability, and life expectancy of the high-voltage power delivery system 100.
In an embodiment, the at least one isolation device 120 is configured to transmit a periodic status signal to the control module 112 based on an electrical state of disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104. Specifically, the system 100 operates by configuring the at least one isolation device 120 to transmit the periodic status signal to the control module 112, reflecting the electrical state of disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104. The control module 112 continuously monitors the periodic status signal to verify the operational state of the isolation device 120 and the integrity of the high-voltage interlock loop circuit 108. Further, the periodic status signal is transmitted through the plurality of signal lines 110, providing real-time feedback on the electrical continuity and confirming successful disconnection of the high-voltage network. The system 100 ensures accurate and continuous assessment of isolation effectiveness, preventing undetected reconnection or partial engagement of the isolation device 120. Furthermore, the process involves the generation, transmission, and monitoring of the periodic status signals to maintain oversight of high-voltage disconnection events. The isolation device 120 generates the status signal at predefined intervals, representing the electrical state of disconnection between the at least one high-voltage battery 102 and the plurality of high-voltage components 104. Moreover, the control module 112 receives and interprets the status signals to determine whether the isolation device 120 maintains complete and effective separation of the high-voltage network. Any deviation or absence of the periodic status signal triggers the alert or corrective response from the control module 112, ensuring continuous validation of disconnection and fault isolation processes across the high-voltage interlock loop circuit 108. Consequently, transmission of the periodic status signals provides continuous, real-time verification of the operational state of the isolation device 120 and the integrity of high-voltage disconnection. The advantages of the periodic status signal include, but are not limited to, enhanced reliability of the fault isolation, prevention of inadvertent electrical reconnection, improved safety of the at least one high-voltage battery 102 and the plurality of high-voltage components 104, and reduced risk of the system 100 damage due to incomplete disconnection. Additionally, the configuration establishes a feedback-driven monitoring framework that ensures deterministic control of the high-voltage isolation, supports predictive maintenance, and maintains operational stability of the high-voltage power delivery system 100.
In an exemplary embodiment, the system 100 involves a high-voltage battery 102 rated at 400?V and a plurality of high-voltage components 104, including but not limited to inverters, traction motors, and DC-DC converters, electrically coupled via the high-voltage connectors 106. The high-voltage interlock loop circuit 108 includes, but is not limited to, multiple signal lines 110 designed to transmit a 16-bit code generated by the control module 112. Specifically, the encoder circuit 116 applies a cyclic redundancy check (CRC-8) algorithm to the transmitted code, producing an 8-bit checksum that is appended to the 16-bit code to form a 24-bit transmitted code. The correction code generator 118 adds an additional 4 redundancy bits to improve error detection, resulting in a total transmitted code length of 28 bits. Further, the receiver module 114 receives the transmitted code via the high-voltage interlock loop circuit 108, decodes the code, and calculates the checksum to detect errors. The bitwise comparison is performed between the decoded code and the predetermined reference code; the mismatch is detected in case the Hamming distance (d_H) between the received code (C_r) and the predetermined code (C_p) satisfies (d_H (C_r, C_p) ). Furthermore, upon detection of the mismatch, the receiver module 114 generates the fault signal. The control module 112 receives the fault signal and actuates at least one isolation device 120 to disconnect the high-voltage battery 102 from the plurality of high-voltage components 104. Moreover, the isolation device 120 operates with a disconnection resistance of 10?MO and a rated current capacity of 200?A to ensure safe isolation. During actuation, the isolation device 120 transmits the periodic status signal to the control module 112 every 100?ms, confirming the electrical state of disconnection. Additionally, the control module 112 continues to monitor the periodic status signals and maintains disconnection until the high-voltage interlock loop circuit 108 confirms the absence of faults. The system 100 maintains continuous fault detection by repeating code generation, transmission, error detection, and verification in a cyclic manner at a rate of 10?Hz, ensuring real-time protection of the high-voltage components 104. Consequently, reliable detection of voltage mismatches, open circuits, or short circuits is achieved within the high-voltage interlock loop circuit 108 and the high-voltage components 104. The combination of the encoder circuit 116, the correction code generator 118, and the periodic status signal from the isolation device 120 ensures comprehensive fault detection and verification. Subsequently, the system 100 limits damage to the high-voltage components 104, reduces the risk of catastrophic failures, and provides operational continuity. The methodology enables precise identification of fault locations, immediate isolation of affected circuits, and continuous monitoring to maintain safe operation of the high-voltage power delivery system 100.
In accordance with a second aspect, there is described a method of fault detection in high-voltage power delivery, the method comprising:
- generating a code, via a high-voltage interlock loop circuit;
- detecting errors in the code based on an error-detection coding algorithm, via the receiver module;
- detecting a mismatch between the error-detected code and the predetermined code based on a bitwise comparison, via the receiver module;
- generating a fault signal based on the detected mismatch, via the receiver module; and
- initiating disconnection between at least one high-voltage battery and a plurality of high-voltage components based on actuation of an isolation device, via the control module.
Referring to figure 2, in accordance with an embodiment, there is described a method 200 of fault detection in high-voltage power delivery. At step 202, the method 200 comprises generating a code, via a high-voltage interlock loop circuit 108. At step 204, the method 200 comprises detecting errors in the code based on an error-detection coding algorithm, via the receiver module 114. At step 206, the method 200 comprises detecting a mismatch between the error-detected code and the predetermined code based on a bitwise comparison, via the receiver module 114. At step 208, the method 200 comprises generating the fault signal based on the detected mismatch, via the receiver module 114. At step 210, the method 200 comprises initiating disconnection between at least one high-voltage battery 102 and a plurality of high-voltage components 104 based on actuation of an isolation device 120, via the control module 112.
In an embodiment, the method 200 comprises encoding the transmitted code and applying an error-detection coding algorithm, via an encoder circuit 116.
In an embodiment, the method 200 comprises adding at least one redundancy bit in the transmitted code, via a correction code generator 118.
In an embodiment, the method 200 comprises transmitting a periodic status signal to the control module 112 based on an electrical state of disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104, via the at least one isolation device 120.
In an embodiment, the method 200 comprises generating a code, via a high-voltage interlock loop circuit 108. Further, the method 200 comprises encoding the transmitted code and applying an error-detection coding algorithm, via an encoder circuit 116. Furthermore, the method 200 comprises adding at least one redundancy bit in the transmitted code, via a correction code generator 118. Moreover, the method 200 comprises detecting errors in the code based on an error-detection coding algorithm, via the receiver module 114. Additionally, the method 200 comprises detecting a mismatch between the error-detected code and the predetermined code based on a bitwise comparison, via the receiver module 114. Subsequently, the method 200 comprises generating the fault signal based on the detected mismatch, via the receiver module 114. Consequently, the method 200 comprises initiating disconnection between at least one high-voltage battery 102 and a plurality of high-voltage components 104 based on actuation of an isolation device 120, via the control module 112. Ultimately, the method 200 comprises transmitting a periodic status signal to the control module 112 based on an electrical state of disconnection of the at least one high-voltage battery 102 and the plurality of high-voltage components 104, via the at least one isolation device 120.
The system 100 for fault detection in high-voltage power delivery, as described in the present disclosure, is advantageous in terms of ensuring high precision in the fault detection by employing the encoded code and the redundancy-based verification through the encoder circuit 116 and the correction code generator 118. Further, the integration of the isolation device 120 provides rapid disconnection of the high-voltage battery 102 and the high-voltage components 104, ensuring immediate protection from electrical faults.
It would be appreciated that all the explanations and embodiments of the system 100 also apply mutatis-mutandis to the method 200.
In the description of the present disclosure, it is also to be noted that, unless otherwise explicitly specified or limited, the terms “disposed,” “mounted,” and “connected” are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected, either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific cases to those skilled in the art.
Modifications to embodiments and combinations of different embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as “including”, “comprising”, “incorporating”, “have”, and “is” used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural where appropriate.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings, and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
,CLAIMS:WE CLAIM:
1. A system (100) for fault detection in high-voltage power delivery, the system (100) comprises:
- at least one high-voltage battery (102) electrically coupled to a plurality of high-voltage components (104) via a plurality of high-voltage connectors (106);
- a high-voltage interlock loop circuit (108), wherein the high-voltage interlock loop circuit (108) comprises a plurality of signal lines (110) electrically connected to the at least one high-voltage battery (102), the plurality of high-voltage components (104), and the plurality of high-voltage connectors (106);
- a control module (112) electrically connected to the high-voltage interlock loop circuit (108) and configured to transmit a code via the high-voltage interlock loop circuit (108); and
- a receiver module (114) operatively connected to the control module (112) and the high-voltage interlock loop circuit (108) and configured to receive the code,
wherein the control module (112) is configured to disconnect the at least one high-voltage battery (102) and the plurality of high-voltage components (104) based on a mismatch between the code transmitted via the control module (112) and the code received via the receiver module (114).

2. The system (100) as claimed in claim 1, wherein the control module (112) comprises an encoder circuit (116) and wherein the encoder circuit (116) is configured to encode the transmitted code by applying an error-detection coding algorithm.

3. The system (100) as claimed in claim 1, wherein the control module (112) comprises a correction code generator (118), and wherein the correction code generator (118) is configured to add at least one redundancy bit in the transmitted code.

4. The system (100) as claimed in claim 1, wherein the receiver module (114) is configured to decode the received code and detect errors based on the error-detection coding algorithm.

5. The system (100) as claimed in claim 1, wherein the receiver module (114) is configured to perform a bitwise comparison of the decoded received code with a predetermined code corresponding to the transmitted code.

6. The system (100) as claimed in claim 1, wherein the receiver module (114) is configured to detect the mismatch based on at least one different bit and generate a fault signal based on the detected mismatch.

7. The system (100) as claimed in claim 1, wherein the control module (112) is configured to receive the fault signal and actuate at least one isolation device (120) based on the received fault signal.

8. The system (100) as claimed in claim 7, wherein the control module (112) is configured to initiate a disconnection of the at least one high-voltage battery (102) and the plurality of high-voltage components (104) via the actuation of the at least one isolation device (120).

9. The system (100) as claimed in claim 7, wherein the at least one isolation device (120) is configured to transmit a periodic status signal to the control module (112) based on an electrical state of disconnection of the at least one high-voltage battery (102) and the plurality of high-voltage components (104).

10. The method (200) of fault detection in high-voltage power delivery, the method comprising:
- generating a code, via a high-voltage interlock loop circuit (108);
- detecting errors in the code based on an error-detection coding algorithm, via the receiver module (114);
- detecting a mismatch between the error-detected code and the predetermined code based on a bitwise comparison, via the receiver module (114);
- generating a fault signal based on the detected mismatch, via the receiver module (114); and
- initiating disconnection between at least one high-voltage battery (102) and a plurality of high-voltage components (104) based on actuation of an isolation device (120), via the control module (112).