DESC:SELF-DIAGNOSTIC BATTERY MANAGEMENT SYSTEM
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims priority from Indian Provisional Patent Application No. 202221077591 filed on 31/12/2022, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD
The present disclosure generally relates to a battery management system (BMS) for diagnosing the connection faults between connectors and battery packs. Furthermore, the present disclosure relates to a method of operation of a battery management system.
BACKGROUND
In modern world, the high-grade energy like electrical power, being efficient and readily available, is being utilized in wider range of applications extending from household to automotive sectors. In context to mobility applications, the effective energy storage systems are drawing much attention for efficiently storing and for continuous supply of electrical power and huge research and development is still continued with respect to such systems for further improvements.
The energy storage system that includes battery packs or arrangements of multiple battery packs coupled and connected together in series, parallel or a combination, is used as power source in a wide range of devices such as electric vehicles and industrial applications. A battery management system is being used to keep various battery packs within their safe operating ranges by monitoring physical quantities such as charge, current, voltage, and temperature. Based on the monitored quantities, a battery pack is operated safely, and state of charge and state of health is determined.
For the continuous and effective operation of the battery management system, the electrical connections between the battery packs must be secure, reliable, and well-maintained. During the operation of the BMS, there is a probability of disconnection of connector between the terminals of the battery packs. The electrical disconnection may restrict the BMS to transfer the electrical power at rated capacity or forces the remaining battery packs to get consumed at a faster rate. Due to nonuniform operation of the battery packs, the service life of the battery packs reduces. The BMS becomes ineffective in maintaining the balancing of the voltage levels between the assembly of the battery packs. The electric current flow in the remaining connected connections increases and forces the disconnection of the connections. In case, the connection disconnects, hazardous situations, including fires, electric sparking and/or electrical shocks occurs. Moreover, the electrical connection increases energy losses. The maintenance requirements of the battery management system increase. Thus, the faulty/disconnected connections impair the effectiveness of the BMS ability to optimize the operation and state of battery packs.
Presently, an operator manually checks a connection between battery pack terminals through visual examination or through resistance or voltage measurement across the connection between the packs in order to identify which connection is faulty/disconnected (connection between the terminal and a connector) among the multiple connections (connection between the connectors and the terminals). The operator may use various tools and equipment for checking the status of such connection. The manual process is time consuming, demands high skills and involvement of human error.
Thus, there exists a need for a battery management system that overcomes the one or more problems as aforementioned.
SUMMARY
An object of the present disclosure is to provide a battery management system for diagnosing the connection fault between the battery packs.
In accordance with the first aspect of the present disclosure, there is provided a battery management system for managing a plurality of battery packs. The battery management system comprises a plurality of connectors and a plurality of module management units. Each of the connector is connected to respective battery pack of the plurality of battery packs and comprises a low resistance path and a unique high resistance path. Each of the module management unit is connected to the respective battery pack via the respective connector. At least one connector is detected as disconnected when a detection signal flows through the unique high resistance path of the respective connector.
The present disclosure provides a battery management system for managing a plurality of battery packs. The system as disclosed in the present disclosure is advantageous in terms of providing a simple and easy to implement design configuration for diagnosis of the connector connection faults between the battery packs. The disclosed system provides for ensuring the consistent and secure electrical pathways between the battery packs by real time diagnosis of connection fault between the battery packs. The disclosed system provides for safe and effective operation of the battery management system by rapid identification of the disconnected connector. The disclosed system preserves the health and extends the operational lifespan of the battery packs by providing the assembly of battery packs to operate in a voltage balanced state for larger period of operation. The system as disclosed reduces the failure rate of the connector connections by eliminating the stress/force on the remaining connections.
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:
FIG. 1 illustrates a block diagram of a battery management system, in accordance with an aspect of the present disclosure.
FIG. 2a illustrates a circuit diagram of a battery management system in normal condition, in accordance with an aspect of the present disclosure.
FIG. 2b illustrates a circuit diagram of a battery management system in faulty condition, in accordance with an aspect of the present disclosure.
FIG. 3 illustrates a flow chart of a method of operation of a battery management system, in accordance with another aspect 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.
The description set forth below in connection with the appended drawings is intended as a description of certain embodiments of a battery management system for managing a plurality of battery packs and is not intended to represent the only forms that may be developed or utilized. The description sets forth the various structures and/or functions in connection with the illustrated embodiments; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
The terms “comprise”, “comprises”, “comprising”, “include(s)”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, or system that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or system. In other words, one or more elements in a system or apparatus preceded by “comprises... a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings which are shown by way of illustration-specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
The present disclosure will be described herein below with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the description with unnecessary detail.
As used herein, the term ‘battery management system’ refers to an electronic system that monitors and regulates the charging and discharging of battery packs. The battery management system monitors the battery's voltage, current, temperature, and other parameters to ensure that the battery packs are operating within the safe operation limits. Furthermore, the battery management system protects the battery from damage by preventing overcharging, over-discharging, overheating, and other abnormal conditions. Furthermore, the battery management system balances the voltage across the individual cells in a battery pack to extend the battery's life and improve its performance. Moreover, the battery management system estimates the battery's state of charge (SoC), state of health (SoH), and remaining capacity.
As used herein, the terms ‘battery pack’ refer to a component that includes assembly of cells connected together in series or/and parallel. The battery pack is integrated within a common housing or enclosure and configured to function collectively as a larger energy storage unit to supply electrical power. The battery pack may include various types of cells including cylindrical cells, prismatic cells, pouch cells, coin cells or any customised shape cells.
As used herein, the terms ‘connector’ refers to an electromechanical component that is mechanically connected and secured between the terminals of battery packs to establish the path for detection signal transmission to allow the flow of detection signal between the battery packs and through the connectors. The material of the connectors includes copper alloys.
As used herein, the terms ‘low resistance path’ refers to the electrical pathway across the connector with low resistance, that forms for the flow of detection signal for charging or discharging the battery pack, during establishment of electrical connections in between the battery packs and the connectors.
As used herein, the terms ‘unique high resistance path’ refers to the electrical pathway across the connector with high resistance, for the flow of detection signal for charging or discharging the battery pack, during electrical disconnection in between the battery packs and the connectors. The unique high resistance path includes a resistor or a particular combination of resistances in series.
As used herein, the terms ‘module management unit’ refers to the electronic device that is configured with the battery pack for continuous measurement, extraction, communication and controlling of the real time readings of voltage, temperature, state of charge, and state of health of the cells of the battery pack. The unit actively detects abnormalities, such as overvoltage, over-temperature, or underperforming cells. The unit identifies faults, potential failures, or degradation within the battery pack, triggering alarms or alerts to prevent critical issues. The unit communicates monitored data, fault alerts, and diagnostic information to the battery management system. The unit receives commands from the BMS, enabling actions such as balancing, isolation, or shutdown of battery packs based on the BMS's assessment and control algorithms.
As used herein, the terms ‘detection signal’ refers to an electrical signal that flows through the unique high resistance path after disconnection of connector/connectors with the battery packs. The detection signal includes low voltage signal.
As used herein, the terms ‘terminals’ refers to the electrical components located on a battery pack, to connect the particular connector with the respective battery pack. These terminals typically include metallic or conductive elements designed to establish proper electrical connections with respective connectors. The terminals include positive and negative terminals, designated for the transfer/receiving of positive and negative electrical potentials, during charging and discharging/operation of the battery pack respectively. The terminals can be configured to enable various modes of electrical connections, such as series configuration, and include features for enhanced safety, such as insulating covers and terminal guards.
As used herein, the terms ‘resistor’ refers to the component of the connector to introduce a unique resistance to form a high resistance path in the connector. Each connector includes a unique resistor to form a unique high resistance path respectively. The resistance includes wire wound resistor such as nichrome wound around a ceramic or fiberglass core. The resistance value is unique in a sense that the value of the individual resistances is unique compare to the other resistors implemented in the system, and the resulting resistance value from the several combinations of sum of resistances is unique. In case of disconnection of more than one connector, the detection signal will flow through the unique high resistance path that includes a combination of respective unique resistors during disconnection of the respective connectors from the terminals of the respective battery pack. The detection signal simultaneously flows through the low resistance path of the connected connectors. In proportion to the resistance value in the unique high resistance path, a unique voltage drop takes place in the detection signal, during flow of the detection signal through the unique high resistance path.
As used herein, the terms ‘detection signal generator’ refers to the source to generate the detection signal to detect disconnection between the connector and the battery pack. The generator includes electronic circuitry and/or software algorithms, to generate the predetermined detection signals. The detection signal generator may be a current source or a voltage source. It is to be understood that the current remains constant and the voltage drops across the high resistance path.
As used herein, the terms ‘comparator’ refers to the component of the battery management system to compare the input voltage of the generated detection signal with the voltage of the received detection signal. The comparator through comparison identifies a drop in voltage of the detection signal and generates a corresponding signal. The drop in voltage occurs in accordance to the formed unique resistance path. It is to be understood that the comparator may be an operational amplifier.
As used herein, the terms ‘control unit’ refers to the component to identify the disconnected connector/connectors in the battery management system, based on the drop in voltage of the detection signal. The control unit receives the signal corresponding to occurred drop in voltage. The control unit is configured through algorithms to recognize the pattern of voltage drops corresponding to disconnection in various individual connectors and/or possible combinations of connectors. Each unique high resistance path causes a distinct and identifiable voltage drop pattern due to their unique high resistance or unique combination of high resistances. Moreover, the control unit controls the operation of the detection signal generator. The unit switches on/off the generator during operational/non-operational state of the battery management system. The switching on of the generator provides for the generation of the detection signal. The control unit includes microcontroller and integrated circuits. The control unit may comprise a microcontroller to control the operation of the battery management system.
Figure 1, in accordance with an embodiment, describes a battery management system 100 for managing a plurality of battery packs 102. The battery management system 100 comprises a plurality of connectors 104 and a plurality of module management units 106. Each of the connector 104 is connected to respective battery pack 102 of the plurality of battery packs 102 and comprises a low resistance path and a unique high resistance path. Each of the module management unit 106 is connected to the respective battery pack 102 via the respective connector 104. At least one connector 104 is detected as disconnected when a detection signal flows through the unique high resistance path of the respective connector 104.
The present disclosure provides a battery management system 100 for managing a plurality of battery packs 102. The system 100 as disclosed in the present disclosure is advantageous in terms of simple and easy to implement design configuration for diagnosis of the connector 104 connection faults between the battery packs 102. The disclosed system 100 provides for ensuring consistent and secure electrical pathways between the battery packs 102 by real time diagnosis of connection fault between the battery packs 102. The disclosed system 100 provides for safe and effective operation of the battery management system 100 by rapid identification of the disconnected connector 104. The system 100 as disclosed is advantageous in terms of providing for minimum downtime by enabling earliest identification of the disconnected connector 104 between the battery packs 102, to be connected. The disclosed system 100 preserves the health and extends the operational lifespan of the battery packs 102 by providing the assembly of battery packs 102 to operate in a voltage balanced state for larger period of operation. The system 100 as disclosed reduces the failure rate of the connector 104 connections by reducing the stress/force on the remaining connector 104 connections.
Figure 2a, in accordance with an embodiment, describes a battery management system 100 in normal condition when there is no disconnection fault between the terminals of the battery packs 102 and the connectors 104.
In an embodiment, the low resistance path is formed in the connector 104 when the particular connector 104 is connected with terminals of the respective battery pack 102. Beneficially, the low resistance path provides a well-directed electrical pathway for the flow of the detection signal with minimum losses.
During the normal condition of operation of the battery management system 100 (the particular connector 104 are connected with terminals of the respective battery pack 102), the detection signal flows through the respective low resistance path leading to no drop in voltage of the detection signal.
Figure 2b, in accordance with an embodiment, describes a battery management system 100 in faulty condition when there is disconnection fault between the terminals of the battery packs 102 and the connectors 104.
In an embodiment, the unique high resistance path in the connector 104 comprises a resistor with unique resistance value, and wherein the high resistance path is formed through the resistor with unique resistance value, when the particular connector 104 is disconnected from the terminals of the respective battery pack 102. Beneficially, the unique high resistance path forms after the disconnection between the particular connector 104 and the respective battery pack 102. It is to be understood that the unique high resistance path includes a resistor with unique resistance value compared to the other resistors in the system 100.
In an embodiment, the battery management system 100 comprises a detection signal generator 108, wherein the detection signal generator 108 generates the detection signal for detecting whether the at least one connector 104 is disconnected. Beneficially, the detection signal flow provides for initiation of the identification of the disconnected connector.
In an embodiment, the battery management system 100 comprises a comparator 110 configured to identify a drop in voltage of the detection signal. It is to be understood that the drop in voltage of the detection signal takes in proportion to the unique resistance path of flow of the detection signal.
In an embodiment, the battery management system 100 comprises a control unit 112, wherein the control unit 112 is communicably coupled to the detection signal generator 108 and the comparator 110 and configured to control the detection signal generator 108 and identify the at least one disconnected connector 104, based on the drop in voltage of the detection signal. It is to be understood that communicable coupling between the comparator 110 and the control unit 112 enables the communication of the output signal from the comparator 110 corresponding to the voltage drop, to the control unit 112. The processing of the output signal by the control unit 112 identifies the at least one disconnected connector 104 through determination of respective unique resistance path. It is to be understood that the control of the detection signal generator 108 provides for the generation of the detection signal after switching on of the system 100.
In an embodiment, the detection signal flows through the respective low resistance path when the particular connector 104 is connected with the terminals of the respective battery pack 102, leading to no drop in voltage of the detection signal. It is to be understood that the flow of the detection signal through the low resistance path leads to no drop in voltage of the detection signal.
In an embodiment, the detection signal flows through the respective unique high resistance path when the particular connector 104 is disconnected from the terminals of the respective battery pack 102. Beneficially, the flow of the detection signal through the respective unique high resistance path leads, after the disconnection between the particular connector 104 and the terminals of the respective battery pack 102.
In an embodiment, the drop in voltage of the detection signal is unique according to the particular unique high resistance path through which the detection signal has flown through. It is to be understood that the unique drop in voltage occurs in proportion to the resistance values in the particular unique high resistance path flown through by the detection signal. The unique resistance value results in unique drop in voltage across the high resistance path.

During the faulty condition of operation of the battery management system 100 (when the particular connector 104 is disconnected from the terminals of the respective battery pack 102), the detection signal flows through the respective unique high resistance path leading to unique drop in voltage of the detection signal corresponding to the particular high resistance path.
In an exemplary embodiment, when the particular connector 104 is disconnected from the terminals of the battery pack 102-1, the unique high resistance path in the connector 104 comprises a resistor with unique resistance value. The high resistance path is formed through the resistor with unique resistance value. The detection signal is continuously flowing through the respective unique high resistance path. A comparator 110 is configured to identify a unique drop in voltage of the detection signal corresponding to the unique high resistance path. The control unit 112 is communicably coupled to the detection signal generator 108 and the comparator 110. The control unit 112 is configured to control the detection signal generator 108 and identify the at least one disconnected connector 104, based on the unique drop in voltage of the detection signal.
In an exemplary embodiment, when the particular connectors 104 is disconnected from the terminals of the battery pack 102-1 and from the terminals of the battery pack 102-2, the unique high resistance path in the connector 104 comprises two resistors, each with unique resistance value. The high resistance path is formed through the series combination of resistors with unique resistance value. The detection signal is continuously flowing through the respective unique high resistance path. A comparator 110 is configured to identify a unique drop in voltage of the detection signal. The control unit 112 is communicably coupled to the detection signal generator 108 and the comparator 110. The control unit 112 is configured to control the detection signal generator 108 and identify the two disconnected connectors 104, based on the unique drop in voltage of the detection signal. It is to be understood that since both the high resistance paths have unique resistance value creating unique value of total resistance. The total unique resistance would also create a unique total drop in voltage and thus leading to identification of the disconnected connectors.
In an embodiment, the battery management system 100 comprises a plurality of connectors 104 and a plurality of module management units 106. Each of the connector 104 is connected to respective battery pack 102 of the plurality of battery packs 102 and comprises a low resistance path and a unique high resistance path. Each of the module management unit 106 is connected to the respective battery pack 102 via the respective connector 104. At least one connector 104 is detected as disconnected when a detection signal flows through the unique high resistance path of the respective connector 104. Furthermore, the low resistance path is formed in the connector 104 when the particular connector 104 is connected with terminals of the respective battery pack 102. Furthermore, the unique high resistance path in the connector 104 comprises a resistor with unique resistance value, and wherein the high resistance path is formed through the resistor with unique resistance value, when the particular connector 104 is disconnected from the terminals of the respective battery pack 102. Furthermore, the battery management system 100 comprises a detection signal generator 108, wherein the detection signal generator 108 generates the detection signal for detecting whether the at least one connector 104 is disconnected. Furthermore, the battery management system 100 comprises a comparator 110 configured to identify a drop in voltage of the detection signal. Furthermore, the battery management system 100 comprises a control unit 112, wherein the control unit 112 is communicably coupled to the detection signal generator 108 and the comparator 110 and configured to control the detection signal generator 108 and identify the at least one disconnected connector 104, based on the drop in voltage of the detection signal. Furthermore, the detection signal flows through the respective low resistance path when the particular connector 104 is connected with the terminals of the respective battery pack 102, leading to no drop in voltage of the detection signal. Furthermore, the detection signal flows through the respective unique high resistance path when the particular connector 104 is disconnected from the terminals of the respective battery pack 102. Furthermore, the drop in voltage of the detection signal is unique according to the particular unique high resistance path through which the detection signal has flown through.
Figure 3, in accordance with another aspect, describes a method 200 of operation of a battery management system 100 for detecting a status of connection of a plurality of connectors 104 with a plurality of battery packs 102. The method 200 starts at step 202 and finishes at step 208. At step 202, the method 200 comprises generating a detection signal, using a detection signal generator 108. At step 204, the method 200 comprises flowing the detection signal through the plurality of connectors 104, wherein each of the connector 104 comprises a low resistance path and a unique high resistance path. At step 206, the method 200 comprises detecting a drop in voltage of the detection signal. At step 208, the method 200 comprises identifying at least one disconnected connector 104, based on the drop in voltage of the detection signal.
In an embodiment, the low resistance path is formed in the connector 104 when the particular connector 104 is connected with terminals of the respective battery pack 102.
In an embodiment, the unique high resistance path in the connector 104 comprises a resistor with unique resistance value, and wherein the high resistance path is formed through the resistor with unique resistance value, when the particular connector 104 is disconnected from the terminals of the respective battery pack 102.
In an embodiment, the method 200 comprises generating the detection signal for detecting whether the at least one connector 104 is disconnected.
In an embodiment, the method 200 comprises identifying a drop in voltage of the detection signal.
In an embodiment, the method 200 comprises controlling a detection signal generator 108 and identifying the at least one disconnected connector 104, based on the drop in voltage of the detection signal.
In an embodiment, the method 200 comprises flowing detection signal through the respective low resistance path when the particular connector 104 is connected with the terminals of the respective battery pack 102, leading to no drop in voltage of the detection signal.
In an embodiment, the method 200 comprises flowing detection signal through the respective unique high resistance path when the particular connector 104 is disconnected from the terminals of the respective battery pack 102.
It is to be understood that the drop in voltage of the detection signal is unique according to the particular unique high resistance path through which the detection signal has flown through.
It would be appreciated that all the explanations and embodiments of system 100 also apply mutatis-mutandis to the method 200.
In the description of the present invention, 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 invention 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 spirit and 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
,CLAIMS:We Claim:
1. A battery management system (100) for managing a plurality of battery packs (102), wherein the battery management system (100) comprises:
- a plurality of connectors (104), wherein each of the connector (104) is connected to respective battery pack (102) of the plurality of battery packs (102) and comprises a low resistance path and a unique high resistance path; and
- a plurality of module management units (106), wherein each of the module management unit (106) is connected to the respective battery pack (102) via the respective connector (104),
wherein at least one connector (104) is detected as disconnected when a detection signal flows through the unique high resistance path of the respective connector (104).
2. The battery management system (100) as claimed in claim 1, wherein the low resistance path is formed in the connector (104) when the particular connector (104) is connected with terminals of the respective battery pack (102).
3. The battery management system (100) as claimed in claim 1, wherein the unique high resistance path in the connector (104) comprises a resistor with unique resistance value, and wherein the high resistance path is formed through the resistor with unique resistance value, when the particular connector (104) is disconnected from the terminals of the respective battery pack (102).
4. The battery management system (100) as claimed in claim 1, wherein the battery management system (100) comprises a detection signal generator (108), wherein the detection signal generator (108) generates the detection signal for detecting whether the at least one connector (104) is disconnected.
5. The battery management system (100) as claimed in claim 1, wherein the battery management system (100) comprises a comparator (110) configured to identify a drop in voltage of the detection signal.
6. The battery management system as claimed in claim 1, wherein the battery management system (100) comprises a control unit (112), wherein the control unit (112) is communicably coupled to the detection signal generator (108) and the comparator (110), and configured to:
- control the detection signal generator (108); and
- identify the at least one disconnected connector (104), based on the drop in voltage of the detection signal
7. The battery management system (100) as claimed in claim 1, wherein the detection signal flows through the respective low resistance path when the particular connector (104) is connected with the terminals of the respective battery pack (102), leading to no drop in voltage of the detection signal.
8. The battery management system (100) as claimed in claim 1, wherein the detection signal flows through the respective unique high resistance path when the particular connector (104) is disconnected from the terminals of the respective battery pack (102).
9. The battery management system (100) as claimed in claim 1, wherein the drop in voltage of the detection signal is unique according to the particular unique high resistance path through which the detection signal has flown through.
10. A method (200) of operation of a battery management system (100) for detecting a status of connection of a plurality of connectors (104) with a plurality of battery packs (102), wherein the method (200) comprises:
- generating a detection signal, using a detection signal generator (108);
- flowing the detection signal through the plurality of connectors (104), wherein each of the connector (104) comprises a low resistance path and a unique high resistance path;
- detecting a drop in voltage of the detection signal; and
- identifying at least one disconnected connector (104), based on the drop in voltage of the detection signal.