1. A system for controlling differential drive and braking in an electric cart, the system comprising: a first motor and a second motor, each configured to drive a wheel of the electric cart; a plurality of relays operatively coupled to said motors, wherein said relays are configured to control phase changes and sensor line changes to facilitate bidirectional movement of said motors; a microcontroller configured to generate control signals for said plurality of relays, thereby controlling the speed and direction of said motors; a braking mechanism comprising a third motor operatively connected to a pair of limit switches, wherein said limit switches are configured to engage and disengage a braking system on the wheels driven by said first motor and said second motor; a power supply connected to a boost converter for converting input voltage to a higher output voltage to operate said motors; a buck converter for reducing voltage from said power supply to provide operational power to said relays; a mobile communication interface for receiving control instructions from a remote device, wherein said control instructions manage the movement of said electric cart.

2. The system of claim 1, wherein the power supply comprises a detachable battery unit that can be selectively removed and replaced, allowing said electric cart to continue operation without a prolonged charging process.

3. The system of claim 1, wherein the braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when said electric cart experiences an incline above a predetermined angle.

4. The system of claim 1, wherein the microcontroller is configured to control the speed of the electric cart based on load weight information received from a weight sensor positioned on the cart frame.

5. The system of claim 1, wherein the mobile communication interface includes a fail-safe mechanism that automatically applies said braking mechanism upon loss of communication with the remote device for a predetermined time period.

6. The system of claim 1, wherein the plurality of relays includes a temperature-sensitive relay, configured to interrupt power flow to said motors in the event of overheating detected by a temperature sensor.

7. The system of claim 1, wherein the boost converter is further configured to provide power to an auxiliary motor dedicated to adjusting the height of a platform attached to said electric cart.

8. The system of claim 1, further comprising a feedback circuit configured to monitor the operational status of said motors and transmit said status information to the remote device for real-time monitoring.

9. The system of claim 1, wherein the braking mechanism further includes a regenerative braking system, configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration.

10. The system of claim 1, wherein said differential drive system is configured to adjust the torque output of said motors independently based on terrain information received from a sensor positioned on the underside of said electric cart. SYSTEM FOR CONTROLLING DIFFERENTIAL DRIVE AND BRAKING IN AN ELECTRIC CART Abstract Disclosed is a system for controlling differential drive and braking in an electric cart. The system comprises a first motor and a second motor, each configured to drive a wheel of the electric cart. A plurality of relays are operatively coupled to said motors, wherein said relays control phase changes and sensor line changes to enable bidirectional movement. A microcontroller generates control signals for said relays, managing the speed and direction of said motors. The system includes a braking mechanism with a third motor connected to limit switches, which engage and disengage braking on the wheels. A power supply is connected to a boost converter to convert voltage for motor operation, and a buck converter provides power to said relays. A mobile communication interface is provided for receiving control instructions from a remote device, enabling the management of the electric cart's , Claims:Claims :

1. A system for controlling differential drive and braking in an electric cart, the system comprising: a first motor and a second motor, each configured to drive a wheel of the electric cart; a plurality of relays operatively coupled to said motors, wherein said relays are configured to control phase changes and sensor line changes to facilitate bidirectional movement of said motors; a microcontroller configured to generate control signals for said plurality of relays, thereby controlling the speed and direction of said motors; a braking mechanism comprising a third motor operatively connected to a pair of limit switches, wherein said limit switches are configured to engage and disengage a braking system on the wheels driven by said first motor and said second motor; a power supply connected to a boost converter for converting input voltage to a higher output voltage to operate said motors; a buck converter for reducing voltage from said power supply to provide operational power to said relays; a mobile communication interface for receiving control instructions from a remote device, wherein said control instructions manage the movement of said electric cart.

2. The system of claim 1, wherein the power supply comprises a detachable battery unit that can be selectively removed and replaced, allowing said electric cart to continue operation without a prolonged charging process.

3. The system of claim 1, wherein the braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when said electric cart experiences an incline above a predetermined angle.

4. The system of claim 1, wherein the microcontroller is configured to control the speed of the electric cart based on load weight information received from a weight sensor positioned on the cart frame.

5. The system of claim 1, wherein the mobile communication interface includes a fail-safe mechanism that automatically applies said braking mechanism upon loss of communication with the remote device for a predetermined time period.

6. The system of claim 1, wherein the plurality of relays includes a temperature-sensitive relay, configured to interrupt power flow to said motors in the event of overheating detected by a temperature sensor.

7. The system of claim 1, wherein the boost converter is further configured to provide power to an auxiliary motor dedicated to adjusting the height of a platform attached to said electric cart.

8. The system of claim 1, further comprising a feedback circuit configured to monitor the operational status of said motors and transmit said status information to the remote device for real-time monitoring.

9. The system of claim 1, wherein the braking mechanism further includes a regenerative braking system, configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration.

10. The system of claim 1, wherein said differential drive system is configured to adjust the torque output of said motors independently based on terrain information received from a sensor positioned on the underside of said electric cart.

Description:

SYSTEM FOR CONTROLLING DIFFERENTIAL DRIVE AND BRAKING IN AN ELECTRIC CART
Field of the Invention
[0001] The present disclosure generally relates to electric vehicle control systems. Further, the present disclosure particularly relates to a system for controlling differential drive and braking in an electric cart.
Background
[0002] The background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Electric carts are widely used in industrial and warehouse environments for the purpose of transporting heavy materials over short distances. These electric carts typically rely on motors powered by batteries for movement. In recent years, systems employing differential drive control have gained traction due to the enhanced maneuverability provided by such systems. Differential drive systems utilize independent motors for each wheel, allowing the wheels to rotate at different speeds, thus enabling sharp turns and smooth navigation through confined spaces. However, existing systems exhibit limitations in managing both forward and reverse movements efficiently while controlling speed and direction.
[0004] A common method to implement differential drive control involves the use of relays to switch between motor phases and sensor lines, allowing for bidirectional motor movement. While this method is widely adopted, systems often struggle with relay control in high-demand environments, leading to inefficient switching and potential wear on relay components. Moreover, the complexity of managing multiple relays simultaneously to control motor direction can lead to signal interference and reduced accuracy in motor control.
[0005] Another known approach to controlling electric carts includes using a microcontroller to handle the control signals for motor operation. Such microcontrollers typically send digital signals to relays, which then modify the motor's direction and speed. However, this approach can introduce latency due to the microcontroller's processing time, especially in environments requiring rapid direction changes. Moreover, integration with external control systems, such as mobile devices, poses additional challenges, particularly in maintaining real-time communication and ensuring that commands are executed accurately.
[0006] Conventional systems also face challenges with braking mechanisms. Many electric carts rely on simple mechanical brakes, which are activated either manually or through a basic control system. Such braking systems, while functional, may lack precision, particularly in differential drive setups where independent control of wheel braking is necessary. Additionally, most braking systems do not offer feedback mechanisms to indicate the status of brake engagement, leading to safety concerns and potential wear on braking components over time.
[0007] Another challenge with conventional systems is power management. Most electric carts utilize a power supply comprising lead-acid batteries to power both the motors and control circuits. The batteries are typically connected to a boost converter, which increases the voltage for motor operation. However, conventional systems lack efficient power management, leading to issues such as power loss during operation and inefficient power distribution. Furthermore, relays in such systems are often powered directly from the main battery, which can lead to voltage fluctuations, further impacting system performance.
[0008] In light of the above discussion, there exists an urgent need for solutions that overcome the problems associated with conventional systems and/or techniques for controlling differential drive and braking in electric carts.
Summary
[0009] The following presents a simplified summary of various aspects of this disclosure in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements nor delineate the scope of such aspects. Its purpose is to present some concepts of this disclosure in a simplified form as a prelude to the more detailed description that is presented later.
[00010] The following paragraphs provide additional support for the claims of the subject application.
[00011] In an aspect, the present disclosure provides a system for controlling differential drive and braking in an electric cart. The system comprises a first motor and a second motor, each configured to drive a wheel of the electric cart. A plurality of relays are operatively coupled to the motors, wherein the relays are configured to control phase changes and sensor line changes to facilitate bidirectional movement of the motors. A microcontroller generates control signals for the plurality of relays, thereby controlling the speed and direction of the motors. The system also includes a braking mechanism comprising a third motor operatively connected to a pair of limit switches, wherein the limit switches engage and disengage a braking system on the wheels driven by the first motor and the second motor. A power supply is connected to a boost converter to convert input voltage to a higher output voltage to operate the motors. A buck converter reduces voltage from the power supply to provide operational power to the relays. Additionally, a mobile communication interface receives control instructions from a remote device, wherein the control instructions manage the movement of the electric cart.
[00012] The system enables smooth bidirectional control of the electric cart by controlling both speed and direction using the plurality of relays and the microcontroller. The braking mechanism enhances safety by utilizing limit switches to manage braking engagement. The system also optimizes power management by utilizing a boost converter for motors and a buck converter for relays, thereby maintaining operational efficiency.
[00013] The power supply comprises a detachable battery unit that can be removed and replaced, enabling continuous operation of the electric cart without extended charging interruptions. The detachable battery system facilitates ease of battery replacement in high-demand environments, ensuring uninterrupted operations.
[00014] The braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when the electric cart encounters an incline above a predetermined angle. Such a mechanism provides enhanced control of the cart during inclined operation, improving safety and stability.
[00015] The microcontroller adjusts the speed of the electric cart based on load weight information from a weight sensor positioned on the cart frame. The system thereby adjusts the performance of the electric cart according to the load being transported, optimizing motor control under varying conditions.
[00016] The mobile communication interface includes a fail-safe mechanism that automatically applies the braking mechanism upon loss of communication with the remote device for a predetermined time. The fail-safe mechanism ensures the safety of the electric cart in cases of communication failure, preventing uncontrolled movement.
[00017] The plurality of relays includes a temperature-sensitive relay configured to interrupt power flow to the motors upon detection of overheating by a temperature sensor. The system protects the motors from damage caused by excessive heat, increasing the operational lifespan of the components.
[00018] The boost converter provides power to an auxiliary motor dedicated to adjusting the height of a platform attached to the electric cart. The height adjustment system increases the versatility of the electric cart by enabling platform modifications during operation.
[00019] The system further comprises a feedback circuit that monitors the operational status of the motors and transmits the status information to the remote device for real-time monitoring. The feedback circuit enables the operator to monitor motor performance and operational conditions during usage.
[00020] The braking mechanism includes a regenerative braking system, configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration. The regenerative braking system enhances energy efficiency by recovering energy during braking phases.
[00021] The differential drive system adjusts the torque output of the motors independently based on terrain information received from a sensor positioned on the underside of the electric cart. The torque adjustment system provides optimal performance based on terrain conditions, improving maneuverability on uneven surfaces.
Brief Description of the Drawings
[00022] The features and advantages of the present disclosure would be more clearly understood from the following description taken in conjunction with the accompanying drawings in which:
[00023] FIG. 1 illustrates a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure.
[00024] FIG. 2 illustrates the motion control system of the electric cart, in accordance with the embodiments of the present disclosure.
[00025] FIG. 3 illustrates a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure.
[00026] FIG. 4 illustrates a circuit diagram of a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure.
Detailed Description
[00027] In the following detailed description of the invention, reference is made to the accompanying drawings that form a part hereof, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. In the drawings, like numerals describe substantially similar components throughout the several views. These embodiments are described in sufficient detail to claim those skilled in the art to practice the invention. Other embodiments may be utilized and structural, logical, and electrical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims and equivalents thereof.
[00028] The use of the terms “a” and “an” and “the” and “at least one” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The use of the term “at least one” followed by a list of one or more items (for example, “at least one of A and B”) is to be construed to mean one item selected from the listed items (A or B) or any combination of two or more of the listed items (A and B), unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
[00029] Pursuant to the "Detailed Description" section herein, whenever an element is explicitly associated with a specific numeral for the first time, such association shall be deemed consistent and applicable throughout the entirety of the "Detailed Description" section, unless otherwise expressly stated or contradicted by the context.
[00030] As used herein, the term “first motor” and “second motor” are used to refer to electric motors configured to drive a wheel of the electric cart. Each motor may independently control the rotation of a wheel, providing the ability to generate motion in forward or reverse directions. The motors may be configured to operate at various speeds based on control signals provided by the system, enabling differential drive movement for smooth navigation of the electric cart. The motors may be brushless direct current (BLDC) motors or other types of electric motors suitable for driving the cart wheels. Additionally, the motors are connected to a power source and work in conjunction with relays, phase control, and sensor line changes to adjust their operational states. As used herein, the motors include first and second motors operating individually or collectively to control the directional movement of the electric cart, enabling bidirectional motion and precise control based on terrain, load, and external control inputs.
[00031] As used herein, the term “plurality of relays” is used to refer to a group of electrically operated switches that are operatively coupled to the motors in the system. The relays control the phase changes and sensor line changes necessary for the motors to operate in forward or reverse directions. Each relay may be associated with specific motor functions such as controlling the current flow, altering motor phases, and switching between operational modes. The relays enable bidirectional movement of the motors by altering their operational states, based on signals received from the microcontroller. Additionally, the relays may operate at various voltage levels and include mechanisms to manage electrical loads during operation. As used herein, the plurality of relays enables precise control of motor direction, speed, and torque, contributing to the overall movement and control of the electric cart. The relays are critical components for managing the electrical signals governing motor operations.
[00032] As used herein, the term “microcontroller” is used to refer to an embedded computing device responsible for generating control signals for the plurality of relays. The microcontroller processes input from various sensors, external devices, and user commands to adjust the motors’ speed and direction accordingly. The microcontroller may use digital or analog signals to communicate with the relays, ensuring that the appropriate motor phases are engaged for forward or reverse movement. Additionally, the microcontroller monitors the operational conditions of the electric cart, including braking status, motor load, and system voltage, to manage the system's performance. As used herein, the microcontroller is a central element of the system, orchestrating the control of the motors, braking mechanisms, and communication interface to facilitate real-time adjustments in cart movement and performance.
[00033] As used herein, the term “braking mechanism” is used to refer to a system comprising a third motor and a pair of limit switches, which collectively control the engagement and disengagement of brakes on the wheels driven by the first motor and the second motor. The braking mechanism operates by actuating the third motor in response to signals from the limit switches, which detect when braking action is required. The limit switches serve as sensors that engage the braking system when specific conditions are met, such as reaching a certain speed or detecting the cart's motion on an incline. The braking mechanism may work in conjunction with the microcontroller to provide dynamic braking during operation. As used herein, the braking mechanism ensures controlled deceleration of the electric cart by engaging the brakes at the appropriate time, contributing to the system’s overall safety and operability.
[00034] As used herein, the term “power supply” is used to refer to the source of electrical energy that powers the motors, relays, microcontroller, and other components of the electric cart. The power supply is connected to a boost converter, which steps up the input voltage to a higher output voltage necessary for operating the motors. The power supply may comprise a battery unit, such as lead-acid or lithium-ion batteries, and may include options for detachable or replaceable battery units for continuous operation. The power supply provides electrical energy for the entire system and may include charging circuits, power management systems, and connectors to external power sources. As used herein, the power supply is integral to the functionality of the system, enabling the operation of the motors, relays, and braking mechanism during the electric cart’s operation.
[00035] As used herein, the term “boost converter” is used to refer to an electrical circuit that increases the input voltage from the power supply to a higher output voltage necessary to operate the motors. The boost converter utilizes components such as capacitors, inductors, diodes, and transistors to convert the lower input voltage from the power supply to the higher voltage required by the motors for efficient operation. The boost converter operates in conjunction with the power supply to ensure that the motors receive the appropriate voltage level for optimal performance. As used herein, the boost converter plays a key role in managing the power delivery to the motors, ensuring that the electric cart can operate at various speeds and under different load conditions.
[00036] As used herein, the term “buck converter” is used to refer to an electrical circuit that reduces the voltage from the power supply to a lower voltage level required to power the relays and other low-voltage components in the system. The buck converter ensures that the relays receive a stable and appropriate voltage for proper operation, thereby protecting the relays from overvoltage conditions. The buck converter operates alongside the boost converter, with both serving distinct functions in managing the power distribution within the system. As used herein, the buck converter ensures that voltage-sensitive components in the system, such as relays and control circuits, are supplied with the correct voltage level for reliable operation.
[00037] As used herein, the term “mobile communication interface” is used to refer to a system that facilitates wireless communication between the electric cart and a remote device. The mobile communication interface receives control instructions from the remote device and transmits them to the microcontroller, which adjusts the movement of the electric cart based on said instructions. The interface may use wireless communication technologies such as Bluetooth, Wi-Fi, or radio frequency (RF) signals to enable real-time control and monitoring of the electric cart. As used herein, the mobile communication interface allows for the remote operation of the electric cart, providing a convenient and efficient means to manage the cart’s movements and performance from a distance.
[00038] FIG. 1 illustrates a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure. The system includes a first motor and a second motor, each configured to drive a respective wheel of the electric cart. The first motor and second motor are operatively connected to individual wheels, allowing each motor to independently control the rotational movement of the respective wheel. These motors may be brushless direct current (BLDC) motors or other suitable electric motors capable of providing bidirectional movement. The motors are configured to operate in both forward and reverse directions, thereby enabling precise maneuvering of the electric cart. The motors receive power from a power supply and are controlled via electrical signals generated by a microcontroller, as will be described in detail. The independent operation of the first motor and second motor allows the system to perform differential drive control, which is essential for smooth turning and directional changes of the electric cart. In particular, the motors can operate at different speeds or directions, enabling the cart to rotate on its axis or navigate tight corners with ease. This configuration provides enhanced mobility in confined spaces.
[00039] A plurality of relays is operatively coupled to the first motor and second motor. The relays are configured to manage the phase changes and sensor line changes necessary to control the bidirectional movement of the motors. Each relay functions as an electrically operated switch, selectively opening or closing circuits to control the flow of electricity to the motors. The relays enable the motors to change operational states, such as switching between forward and reverse directions, by altering the phase connections of the motor windings. This phase switching is essential for bidirectional motor control and differential drive functionality. In addition to phase changes, the relays are configured to manage sensor line changes, ensuring that the motors receive accurate feedback for speed and position control. The relays may operate at a specific voltage provided by the power supply, which is stepped down via a buck converter as described later. The plurality of relays ensures that the motors operate in a controlled and synchronized manner, allowing the electric cart to perform various driving functions, including turning, reversing, and braking, with precision.
[00040] The microcontroller in the system is configured to generate control signals for the plurality of relays, which, in turn, control the motors’ speed and direction. The microcontroller may be a programmable embedded device such as an ATMEGA328P or another microcontroller capable of processing input signals and generating output signals based on predefined algorithms. The microcontroller receives input from various sensors positioned throughout the electric cart, including limit switches, temperature sensors, and load sensors, as applicable. Based on these inputs, the microcontroller processes the data and generates corresponding output signals that are sent to the relays. The relays, in response to the signals from the microcontroller, adjust the electrical connection to the motors to control the motors' operational parameters such as speed, torque, and direction. The microcontroller may also receive control instructions from a remote device via a mobile communication interface, as will be described in detail. This remote control capability allows for real-time adjustments to the electric cart’s movement based on user input. The microcontroller ensures that the electric cart operates in an efficient, controlled, and responsive manner, maintaining optimal performance under varying operational conditions.
[00041] The system also includes a braking mechanism comprising a third motor operatively connected to a pair of limit switches. The braking mechanism is responsible for controlling the engagement and disengagement of the brakes on the wheels driven by the first motor and second motor. The third motor may be an electric motor that operates a mechanical braking system by applying or releasing pressure on the brakes. The pair of limit switches serves as sensors that detect the position or state of the braking mechanism. When the electric cart requires deceleration or stopping, the microcontroller activates the third motor based on input from the limit switches, which then engages the braking system. Conversely, when the cart resumes motion, the microcontroller disengages the brakes by sending signals to the third motor, ensuring a smooth transition from a stationary to a moving state. The braking mechanism is designed to provide both manual and automatic braking control, allowing the electric cart to stop reliably in response to various inputs, such as user commands from the remote device or automatic triggers based on speed or incline. The combination of the third motor and limit switches ensures that the braking system operates efficiently and with precision, providing enhanced safety and control.
[00042] The power supply in the system is connected to a boost converter for converting the input voltage to a higher output voltage suitable for operating the motors. The power supply may consist of one or more lead-acid or lithium-ion battery units capable of delivering direct current (DC) power to the system. The boost converter is an electrical circuit designed to increase the voltage level of the power supply to match the operational requirements of the motors. For example, if the power supply provides 24V DC, the boost converter may step up the voltage to 36V DC to power the motors effectively. The boost converter uses components such as inductors, capacitors, diodes, and MOSFETs to achieve voltage conversion with minimal power loss. This ensures that the motors receive the necessary voltage to function at optimal performance levels, especially under load conditions where higher torque is required. The boost converter plays a crucial role in ensuring that the motors receive sufficient power for all operational states, including forward and reverse movement, differential drive, and braking.
[00043] The buck converter in the system reduces the voltage from the power supply to a level that is suitable for operating the relays and other low-voltage components. While the motors require a higher voltage, as provided by the boost converter, the relays typically operate at a lower voltage, such as 12V DC. The buck converter ensures that the voltage supplied to the relays is consistent and within the operational limits of the relays, thereby preventing overvoltage conditions that could damage the components. The buck converter may use similar components as the boost converter, including capacitors, inductors, diodes, and transistors, but is configured to step down the voltage rather than increase it. In addition to powering the relays, the buck converter may also provide power to other control circuits within the system, such as the microcontroller or sensor interfaces. By maintaining a stable voltage for the relays and control circuits, the buck converter ensures that the system operates reliably and efficiently, with minimal risk of electrical malfunctions.
[00044] The system includes a mobile communication interface that enables the electric cart to receive control instructions from a remote device. This communication interface may utilize wireless technologies such as Bluetooth, Wi-Fi, or radio frequency (RF) to establish a connection between the electric cart and a user-operated device, such as a smartphone or remote control. The remote device sends control commands, such as directional inputs, speed adjustments, or braking instructions, to the microcontroller via the mobile communication interface. In response to these commands, the microcontroller generates corresponding control signals for the relays and motors, allowing the electric cart to adjust its movement in real-time. The mobile communication interface may also enable feedback from the electric cart to the remote device, providing the user with information about the cart’s operational status, battery level, or fault conditions. This bi-directional communication capability allows for precise and dynamic control of the electric cart, making it suitable for various applications, including warehouse transportation, material handling, or remote operation in restricted environments.
[00045] In an embodiment, the power supply comprises a detachable battery unit that can be selectively removed and replaced, allowing the electric cart to continue operation without a prolonged charging process. The detachable battery unit may be designed to be easily accessible and removed from the cart's frame, thereby facilitating quick battery swaps in high-demand operational environments. Such a configuration enables operators to replace a depleted battery with a fully charged one, minimizing downtime and allowing the electric cart to maintain continuous operation. The battery unit may be connected via a secure, quick-release mechanism that ensures stable electrical connections during operation while allowing for swift detachment. The battery unit may further include indicators to display the charge status, enabling operators to assess whether a battery swap is required. Additionally, the detachable battery design may be compatible with a variety of charging stations, allowing for flexible recharging schedules. This embodiment is particularly useful in warehouse and industrial applications where continuous use of electric carts is required, enhancing operational efficiency by reducing interruptions associated with battery charging.
[00046] In an embodiment, the braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when the electric cart experiences an incline above a predetermined angle. The electromagnetic braking actuator may be positioned to directly engage the wheels driven by the first motor and second motor, applying a braking force when triggered by a signal from the microcontroller. This signal may be generated when an incline sensor, positioned on the electric cart, detects that the cart is operating on an incline above a preset angle, thereby triggering the braking system to prevent uncontrolled downhill movement. The electromagnetic braking actuator can provide a consistent braking force, independent of mechanical wear, ensuring that the cart maintains a controlled speed on slopes. The microcontroller may continuously monitor the incline sensor and dynamically engage or disengage the electromagnetic brakes based on real-time data. This embodiment provides increased safety and stability, particularly in environments with variable terrain, ensuring the electric cart operates reliably on both flat surfaces and inclines.
[00047] In an embodiment, the microcontroller is configured to control the speed of the electric cart based on load weight information received from a weight sensor positioned on the cart frame. The weight sensor may continuously monitor the load being carried by the electric cart and transmit this data to the microcontroller. The microcontroller, in turn, processes the load information and adjusts the motor output accordingly. For instance, if the weight sensor detects an increase in load, the microcontroller may increase the power supplied to the motors to ensure that the electric cart maintains a consistent speed despite the added weight. Conversely, if the load decreases, the microcontroller may reduce motor power to conserve energy and prevent excessive speed. The weight sensor data may be used not only for speed control but also to enhance motor efficiency and battery life by optimizing power usage based on real-time load conditions. This embodiment is particularly advantageous in industrial settings where electric carts frequently transport varying loads, ensuring smooth and energy-efficient operation under different weight conditions.
[00048] In an embodiment, the mobile communication interface includes a fail-safe mechanism that automatically applies the braking mechanism upon loss of communication with the remote device for a predetermined time period. The fail-safe mechanism may be integrated into the system’s microcontroller, which monitors the communication status between the electric cart and the remote device. In the event that the communication signal is interrupted or lost, the microcontroller triggers the braking system to bring the electric cart to a stop, preventing uncontrolled movement. The predetermined time period before brake engagement may be customizable, allowing for a short delay to account for temporary signal disruptions. The fail-safe mechanism enhances operational safety, particularly in remote-controlled environments where the operator may not always be in direct physical proximity to the electric cart. This feature ensures

temperature-sensitive relay is operatively coupled to both the motors and the power supply and is designed to disconnect the electrical circuit when the temperature exceeds a preset threshold. A temperature sensor is positioned near the motors to continuously monitor the operating temperature during use. If the sensor detects an abnormal rise in temperature, it sends a signal to the temperature-sensitive relay, which immediately cuts power to the motors to prevent overheating and potential damage. This embodiment provides an additional layer of protection for the electric cart, ensuring that the motors are not subjected to excessive thermal stress, which could lead to operational failure or reduced lifespan. The system may also transmit an alert to the operator, indicating that the temperature-sensitive relay has been triggered and the motors have been powered down to prevent overheating.
[00050] In an embodiment, the boost converter is further configured to provide power to an auxiliary motor dedicated to adjusting the height of a platform attached to the electric cart. The auxiliary motor may be used to raise or lower a platform that is mounted on the cart, enabling it to carry loads at varying heights. The boost converter steps up the input voltage from the power supply to a level sufficient to operate both the primary motors and the auxiliary motor. The microcontroller controls the auxiliary motor, allowing the operator to adjust the platform height using input from a remote device or onboard controls. This embodiment increases the versatility of the electric cart, making it suitable for tasks that require adjustable platform heights, such as loading or unloading materials at different levels. The platform adjustment may be smooth and precise, with the auxiliary motor providing enough torque to handle significant loads without straining the system. This feature is especially useful in warehouse and material-handling applications.
[00051] In an embodiment, the system further comprises a feedback circuit configured to monitor the operational status of the motors and transmit said status information to the remote device for real-time monitoring. The feedback circuit may include sensors positioned near the motors to detect various operational parameters, such as motor speed, temperature, and current draw. This data is transmitted to the microcontroller, which processes it and relays the information to the remote device via the mobile communication interface. The feedback circuit enables the operator to monitor the condition and performance of the electric cart in real-time, ensuring that any irregularities or issues can be promptly addressed. The system may also include a visual or auditory alert system to notify the operator if certain thresholds are exceeded, such as if the motors overheat or draw excessive current. This embodiment enhances the overall safety and reliability of the electric cart by providing continuous monitoring and feedback to the operator, enabling preventive maintenance and reducing the likelihood of system failures during operation.
[00052] In an embodiment, the braking mechanism further includes a regenerative braking system configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration. The regenerative braking system operates when the electric cart slows down or comes to a stop, capturing the kinetic energy that would otherwise be lost as heat through the braking process. This energy is then converted into electrical energy and fed back into the power supply, effectively recharging the battery. The regenerative braking system works in conjunction with the primary braking mechanism, providing both braking force and energy recovery. This embodiment increases the efficiency of the electric cart by extending battery life and reducing the need for frequent recharging. The microcontroller manages the transition between mechanical braking and regenerative braking, ensuring that the system operates smoothly and effectively during deceleration. This feature is particularly useful in applications where the cart frequently stops and starts, maximizing energy recovery during operation.
[00053] In an embodiment, the differential drive system is configured to adjust the torque output of the motors independently based on terrain information received from a sensor positioned on the underside of the electric cart. The terrain sensor continuously monitors the surface conditions over which the cart is traveling and transmits this information to the microcontroller. If the sensor detects uneven or rough terrain, the microcontroller adjusts the torque output of the first and second motors independently to ensure stable and efficient movement. For example, when traveling over a slope or rough surface, the microcontroller may increase the torque to one motor while reducing it to the other, allowing the cart to maintain balance and traction. The differential drive system provides enhanced control over the cart's movement, especially in environments with varying surface conditions. This embodiment improves the cart's ability to navigate challenging terrain while ensuring that the load remains stable, making it ideal for outdoor or industrial applications where the ground may be uneven or unpredictable.
[00054] In an embodiment, the system comprising a first motor and a second motor, each configured to drive a wheel of the electric cart, provides technical effects related to improved maneuverability and control. By having independent motors driving each wheel, the system allows for differential drive control, which significantly enhances the electric cart’s ability to perform tight turns, rotate on its axis, and navigate confined spaces. This configuration reduces wear and tear on mechanical components by distributing power efficiently between the motors. The bidirectional movement capability allows the cart to reverse or change directions smoothly, reducing cycle times in applications where frequent directional changes are required.
[00055] In an embodiment, the plurality of relays operatively coupled to the motors provides the technical effect of precise and responsive control over motor phase changes and sensor line adjustments. The relays enable seamless bidirectional movement by allowing rapid switching between motor phases, which improves operational flexibility. This reduces electrical interference and allows the motors to respond quickly to control signals from the microcontroller, resulting in smoother transitions between forward and reverse movement. The ability to control sensor lines also enhances accuracy in motor feedback, ensuring consistent and reliable motor performance across various operating conditions.
[00056] In an embodiment, the microcontroller configured to generate control signals for the plurality of relays provides the technical effect of optimizing motor control by processing real-time inputs from sensors and external devices. The microcontroller enables precise adjustments to motor speed and direction based on environmental or load conditions, improving the overall responsiveness and efficiency of the electric cart. By integrating control signals for braking and motor functions, the microcontroller eliminates the need for manual intervention, allowing for autonomous or remote operation. This enhances operational efficiency and reduces the likelihood of human error in controlling the cart’s movements.
[00057] In an embodiment, the braking mechanism comprising a third motor operatively connected to a pair of limit switches provides the technical effect of enhancing safety and precision in braking control. The limit switches ensure that the brakes are engaged or disengaged at appropriate times based on real-time data from the cart’s movement, preventing unwanted motion or skidding. The third motor, which powers the braking mechanism, allows for responsive braking action, which can be automatically controlled by the microcontroller. This ensures that the braking system reacts quickly and consistently to operational demands, improving the overall stability and control of the electric cart.
[00058] In an embodiment, the power supply connected to a boost converter for converting input voltage to a higher output voltage provides the technical effect of improving energy efficiency in powering the motors. By stepping up the voltage, the boost converter ensures that the motors receive the optimal amount of power needed for operation under different load conditions. This increases the electric cart's performance, especially when navigating slopes or carrying heavier loads. The power supply, when regulated through the boost converter, extends the lifespan of the motors by preventing power surges or fluctuations, ensuring stable operation.
[00059] In an embodiment, the buck converter for reducing voltage from the power supply provides the technical effect of ensuring that the relays and other low-voltage components receive a stable and appropriate power level. This prevents overvoltage conditions that could damage sensitive electronic components, thereby improving the system's overall reliability. The buck converter ensures that power is distributed efficiently within the system, optimizing performance while reducing energy waste. This contributes to the longevity of the system's electrical components, minimizing the risk of malfunctions due to electrical stress.
[00060] In an embodiment, the mobile communication interface for receiving control instructions from a remote device provides the technical effect of enabling real-time remote control of the electric cart’s movement. This increases operational flexibility by allowing the cart to be controlled from a distance, which is particularly useful in environments where direct manual operation is not feasible. The communication interface allows for dynamic adjustments in speed, direction, and braking, improving responsiveness to user inputs and enhancing the cart’s ability to navigate complex environments. The remote control capability reduces the need for physical presence near the cart, increasing safety and operational efficiency.
[00061] In an embodiment, the power supply comprising a detachable battery unit provides the technical effect of minimizing downtime associated with recharging. By allowing the battery to be easily removed and replaced, the electric cart can continue operating without interruption, making it particularly suitable for high-demand environments where continuous use is essential. This feature also allows for the use of multiple battery units, which can be charged externally while the cart remains operational, thereby improving overall productivity and extending operational cycles between charges.
[00062] In an embodiment, the braking mechanism further comprising an electromagnetic braking actuator provides the technical effect of enhancing the braking system's response, especially on inclined surfaces. The electromagnetic actuator provides consistent braking force, independent of mechanical wear, ensuring that the cart maintains stable and controlled deceleration when navigating slopes. The actuator can be dynamically controlled by the microcontroller, allowing for responsive braking based on real-time terrain data. This improves the electric cart’s safety, particularly in environments with variable inclines.
[00063] In an embodiment, the microcontroller configured to control the speed of the electric cart based on load weight information provides the technical effect of optimizing motor performance by adjusting power output based on the load being carried. This improves energy efficiency by ensuring that the motors do not operate at full capacity when unnecessary. The ability to adjust motor power in real-time based on load conditions also enhances the cart’s stability, preventing issues such as over-speeding when carrying lighter loads or stalling when carrying heavier ones.
[00064] In an embodiment, the mobile communication interface with a fail-safe mechanism that applies the braking system upon loss of communication provides the technical effect of ensuring that the electric cart automatically stops in the event of communication failure. This enhances safety by preventing uncontrolled movement, especially in environments where the cart is operating remotely. The fail-safe mechanism ensures that any loss of signal does not result in unsafe conditions, as the cart will stop automatically, reducing the risk of accidents or collisions.
[00065] In an embodiment, the plurality of relays including a temperature-sensitive relay provides the technical effect of protecting the motors from overheating by interrupting power flow when excessive temperatures are detected. This prevents damage to the motors caused by thermal stress, extending the operational lifespan of the system. The temperature-sensitive relay operates autonomously to ensure that the motors are not subjected to dangerous operating conditions, thereby improving the overall reliability of the electric cart.
[00066] In an embodiment, the boost converter providing power to an auxiliary motor dedicated to adjusting the height of a platform provides the technical effect of increasing the functionality of the electric cart. The ability to raise or lower the platform in response to operational needs enhances the cart’s versatility, making it suitable for various tasks such as loading or unloading goods at different heights. This feature improves the system's adaptability in diverse working environments, allowing for efficient handling of materials.
[00067] In an embodiment, the feedback circuit configured to monitor the operational status of the motors and transmit status information to a remote device provides the technical effect of enabling real-time monitoring of the electric cart’s performance. This allows operators to address potential issues promptly, reducing the risk of system failures during operation. The feedback circuit enhances preventive maintenance by providing detailed information about motor conditions, ensuring that the electric cart operates smoothly and efficiently.
[00068] In an embodiment, the regenerative braking system configured to convert kinetic energy into electrical energy provides the technical effect of improving energy efficiency by recharging the power supply during deceleration. This reduces the frequency of recharging the battery, extending the operational time between charges. The regenerative braking system also reduces wear on the mechanical braking components by allowing some of the braking force to be absorbed electrically, enhancing the overall durability of the system.
[00069] In an embodiment, the differential drive system configured to adjust the torque output of the motors independently based on terrain information provides the technical effect of improving traction and control on uneven surfaces. By dynamically adjusting the torque distribution between the motors, the system ensures that the electric cart maintains stability and efficient movement over challenging terrain. This feature enhances the cart's adaptability, making it suitable for a wide range of operational environments, from smooth warehouse floors to rugged outdoor surfaces.
[00070] FIG. 2 illustrates the motion control system of the electric cart, in accordance with the embodiments of the present disclosure. The motion of the cart is achieved through differential drive control, utilizing two motors, M1 and M2. To regulate the speed and direction of these motors, a series of relays are employed. Specifically, for motor M1, relays RL4 and RL5 manage phase changes between the motor's terminals (a and c), while relays RL2 and RL3 control the sensor lines (sa and sb) of the motor. Similarly, for motor M2, relays RL9 and RL10 facilitate phase changes between terminals a and c, while relays RL6 and RL7 manage sensor lines sa and sb. The system operates with ten relays, all of which are controlled by an NPN transistor switch (BC547), triggered by the microcontroller ATMEGA328P. The connections between the BLDC-TRIANGLE motor M1 and the BLDC HUBDRIVER D1, as influenced by the digital signal at microcontroller pin PD5, are shown in Table 1.0 (a) for forward movement and Table 1.0 (b) for reverse movement. Similarly, the connections for motor M2 and driver D2 are controlled via digital pin PD4, as depicted in Table 1.0 (c) for forward motion and Table 1.0 (d) for reverse motion. Furthermore, another motor, M3, which operates at 24V DC, is controlled through relays RL1 and RL6. These relays determine the direction of motor M3 using digital pins PB0 and PB1 of the microcontroller. Motor M3 actuates a parallel braking system on the wheels of motors M1 and M2, and limit switches LS1 and LS2 provide feedback regarding the brake's engagement, which is processed via digital pins PD6 and PD7. The primary power source, B1, a 24V DC battery, is connected to a boost converter circuit (consisting of capacitors, inductors, diodes, and a MOSFET) that steps up the voltage to 36V DC for the operation of BLDC HUBDRIVER D1 and D2. Additionally, a buck converter is incorporated to step down the voltage to 12V DC to power the relays RL1 to RL10.
[00071] FIG. 3 illustrates a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure. The system, referred to as the "E-Cart Driver Circuit," incorporates key features that enhance its operational efficiency and control. The system is controlled using an improvised PWM (Pulse Width Modulation) technique, which provides precise control over the motor speed and torque. This PWM control is designed to manage the power delivery efficiently while ensuring smooth acceleration and deceleration of the electric cart. The system also integrates feedback braking, which continuously monitors the cart's motion and applies the necessary braking force, improving safety and control. Additionally, the system is free of complex thermal management requirements, making it highly robust for extended use without the need for additional cooling mechanisms. Wireless connectivity is another feature, allowing for remote control and monitoring of the cart, providing convenience in various operational environments. Lastly, the system boasts a 2.14% improvement in power efficiency, reducing energy consumption during operation. These features together make the E-Cart Driver Circuit a highly efficient and reliable system for managing differential drive and braking in electric carts.
[00072] FIG. 4 illustrates a circuit diagram of a system for controlling differential drive and braking in an electric cart, in accordance with the embodiments of the present disclosure. The system is based around the microcontroller ATMEGA328P (U1), which controls multiple relays (RL1 to RL10) and components to manage the movement and braking of the electric cart. The relays control the bidirectional movement of motors M1 and M2, which are BLDC-TRIANGLE motors, by switching the phase and sensor line connections. Each relay is driven by a BC547 transistor, ensuring the proper operation of the relays based on the microcontroller’s control signals. The BLDC HUBDRIVER circuits (D1 and D2) are used to drive the motors, with phase and sensor lines connected to the microcontroller. Motor M3 is responsible for braking and is connected through limit switches LS1 and LS2, which provide feedback to the microcontroller on the status of the braking mechanism. The circuit also includes a power supply (B1), which delivers 24V DC. This is stepped up to 36V DC using a boost converter, composed of capacitors (C1, C2), inductor (L1), diodes (D1, D2), and MOSFETs (Q11, Q12), for powering the motors. Additionally, a buck converter provides 12V DC for powering the relays. The overall system ensures efficient control of the electric cart’s movement and braking.
[00073] Example embodiments herein have been described above with reference to block diagrams and flowchart illustrations of methods and apparatuses. It will be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, respectively, can be implemented by various means including hardware, software, firmware, and a combination thereof. For example, in one embodiment, each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations can be implemented by computer program instructions. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified in the flowchart block or blocks.
[00074] Throughout the present disclosure, the term ‘processing means’ or ‘microprocessor’ or ‘processor’ or ‘processors’ includes, but is not limited to, a general purpose processor (such as, for example, a complex instruction set computing (CISC) microprocessor, a reduced instruction set computing (RISC) microprocessor, a very long instruction word (VLIW) microprocessor, a microprocessor implementing other types of instruction sets, or a microprocessor implementing a combination of types of instruction sets) or a specialized processor (such as, for example, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a digital signal processor (DSP), or a network processor).
[00075] The term “non-transitory storage device” or “storage” or “memory,” as used herein relates to a random access memory, read only memory and variants thereof, in which a computer can store data or software for any duration.
[00076] Operations in accordance with a variety of aspects of the disclosure is described above would not have to be performed in the precise order described. Rather, various steps can be handled in reverse order or simultaneously or not at all.
[00077] While several implementations have been described and illustrated herein, a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein may be utilized, and each of such variations and/or modifications is deemed to be within the scope of the implementations described herein. More generally, all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings is/are used. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific implementations described herein. It is, therefore, to be understood that the foregoing implementations are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, implementations may be practiced otherwise than as specifically described and claimed. Implementations of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the scope of the present disclosure.

Claims
I/We Claim:
1. A system for controlling differential drive and braking in an electric cart, the system comprising:
a first motor and a second motor, each configured to drive a wheel of the electric cart;
a plurality of relays operatively coupled to said motors, wherein said relays are configured to control phase changes and sensor line changes to facilitate bidirectional movement of said motors;
a microcontroller configured to generate control signals for said plurality of relays, thereby controlling the speed and direction of said motors;
a braking mechanism comprising a third motor operatively connected to a pair of limit switches, wherein said limit switches are configured to engage and disengage a braking system on the wheels driven by said first motor and said second motor;
a power supply connected to a boost converter for converting input voltage to a higher output voltage to operate said motors;
a buck converter for reducing voltage from said power supply to provide operational power to said relays;
a mobile communication interface for receiving control instructions from a remote device, wherein said control instructions manage the movement of said electric cart.
2. The system of claim 1, wherein the power supply comprises a detachable battery unit that can be selectively removed and replaced, allowing said electric cart to continue operation without a prolonged charging process.
3. The system of claim 1, wherein the braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when said electric cart experiences an incline above a predetermined angle.
4. The system of claim 1, wherein the microcontroller is configured to control the speed of the electric cart based on load weight information received from a weight sensor positioned on the cart frame.
5. The system of claim 1, wherein the mobile communication interface includes a fail-safe mechanism that automatically applies said braking mechanism upon loss of communication with the remote device for a predetermined time period.
6. The system of claim 1, wherein the plurality of relays includes a temperature-sensitive relay, configured to interrupt power flow to said motors in the event of overheating detected by a temperature sensor.
7. The system of claim 1, wherein the boost converter is further configured to provide power to an auxiliary motor dedicated to adjusting the height of a platform attached to said electric cart.
8. The system of claim 1, further comprising a feedback circuit configured to monitor the operational status of said motors and transmit said status information to the remote device for real-time monitoring.
9. The system of claim 1, wherein the braking mechanism further includes a regenerative braking system, configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration.
10. The system of claim 1, wherein said differential drive system is configured to adjust the torque output of said motors independently based on terrain information received from a sensor positioned on the underside of said electric cart.

SYSTEM FOR CONTROLLING DIFFERENTIAL DRIVE AND BRAKING IN AN ELECTRIC CART
Abstract
Disclosed is a system for controlling differential drive and braking in an electric cart. The system comprises a first motor and a second motor, each configured to drive a wheel of the electric cart. A plurality of relays are operatively coupled to said motors, wherein said relays control phase changes and sensor line changes to enable bidirectional movement. A microcontroller generates control signals for said relays, managing the speed and direction of said motors. The system includes a braking mechanism with a third motor connected to limit switches, which engage and disengage braking on the wheels. A power supply is connected to a boost converter to convert voltage for motor operation, and a buck converter provides power to said relays. A mobile communication interface is provided for receiving control instructions from a remote device, enabling the management of the electric cart's , Claims:Claims
I/We Claim:
1. A system for controlling differential drive and braking in an electric cart, the system comprising:
a first motor and a second motor, each configured to drive a wheel of the electric cart;
a plurality of relays operatively coupled to said motors, wherein said relays are configured to control phase changes and sensor line changes to facilitate bidirectional movement of said motors;
a microcontroller configured to generate control signals for said plurality of relays, thereby controlling the speed and direction of said motors;
a braking mechanism comprising a third motor operatively connected to a pair of limit switches, wherein said limit switches are configured to engage and disengage a braking system on the wheels driven by said first motor and said second motor;
a power supply connected to a boost converter for converting input voltage to a higher output voltage to operate said motors;
a buck converter for reducing voltage from said power supply to provide operational power to said relays;
a mobile communication interface for receiving control instructions from a remote device, wherein said control instructions manage the movement of said electric cart.
2. The system of claim 1, wherein the power supply comprises a detachable battery unit that can be selectively removed and replaced, allowing said electric cart to continue operation without a prolonged charging process.
3. The system of claim 1, wherein the braking mechanism further comprises an electromagnetic braking actuator, configured to provide braking force to the wheels when said electric cart experiences an incline above a predetermined angle.
4. The system of claim 1, wherein the microcontroller is configured to control the speed of the electric cart based on load weight information received from a weight sensor positioned on the cart frame.
5. The system of claim 1, wherein the mobile communication interface includes a fail-safe mechanism that automatically applies said braking mechanism upon loss of communication with the remote device for a predetermined time period.
6. The system of claim 1, wherein the plurality of relays includes a temperature-sensitive relay, configured to interrupt power flow to said motors in the event of overheating detected by a temperature sensor.
7. The system of claim 1, wherein the boost converter is further configured to provide power to an auxiliary motor dedicated to adjusting the height of a platform attached to said electric cart.
8. The system of claim 1, further comprising a feedback circuit configured to monitor the operational status of said motors and transmit said status information to the remote device for real-time monitoring.
9. The system of claim 1, wherein the braking mechanism further includes a regenerative braking system, configured to convert kinetic energy from the wheels into electrical energy to recharge the power supply during deceleration.
10. The system of claim 1, wherein said differential drive system is configured to adjust the torque output of said motors independently based on terrain information received from a sensor positioned on the underside of said electric cart.