High-voltage battery system control device, high-voltage battery system control method, high-voltage battery system and vehicle

Abstract

The invention discloses a high-voltage battery system control device and method, a high-voltage battery system and a vehicle. The high-voltage battery system control device comprises a high-voltage loop, a first driving module, a second driving module, a first power supply module and a control module; and a disconnection signal is output to the first driving module, so that the first driving module controls the circuit breaker to be disconnected, and a signal for indicating disconnection is output to the first power supply module, so that the first power supply module stops supplying power to the second driving module, the second driving module drives the main positive contactor and the main negative contactor to be disconnected, and the high-voltage loop is disconnected. The high-voltage loop can be cut off simply and quickly according to one instruction, so that complexity and potential fault points caused by multiple instructions are reduced, it is ensured that the device can respond quickly and effectively under the emergency condition, the safety performance of the vehicle is remarkably improved, and then the safety of passengers is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a high-voltage battery system control device and method thereof, a high-voltage battery system, and a vehicle. Background Art

[0002] In the related art, after a collision event occurs, the battery management system immediately sends three independent disconnection requests to the vehicle controller, which are respectively used to drive the Pyrofuse, the main positive contactor, and the main negative contactor to ensure the safe isolation of the high-voltage circuit.

[0003] However, although this method aims to quickly isolate the high-voltage circuit to ensure safety, its complexity lies in the need to ensure the immediacy and reliability of communication between the battery management system and the vehicle, as well as the precise synchronization of instructions from the MCU (Microcontroller Unit) to each drive unit, thereby increasing the system design difficulty and failure risk, and may lead to the failure of safety measures caused by a single error. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art.

[0005] For this reason, an object of the present invention is to provide a high-voltage battery system control device, which can cut off the high-voltage circuit according to one instruction, simply and quickly, thereby not only reducing the complexity and potential failure points brought by multiple instructions, but also ensuring that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance, and further protecting the safety of passengers.

[0006] For this reason, a second object of the present invention is to provide a high-voltage battery system control method.

[0007] For this reason, a third object of the present invention is to provide a high-voltage battery system.

[0008] For this reason, a third object of the present invention is to provide a vehicle.

[0009] For this reason, a fifth object of the present invention is to provide a computer-readable storage medium.

[0010] To achieve the above object, an embodiment of the first aspect of the present invention discloses a control device for a high-voltage battery system, comprising: a high-voltage circuit, the high-voltage circuit includes a battery pack, a circuit breaker, a main positive contactor, a load, and a main negative contactor connected in sequence, one end of the circuit breaker is connected to the positive electrode of the battery pack, and one end of the main negative contactor is connected to the negative electrode of the battery pack; a first driving module, connected to the circuit breaker, for driving the circuit breaker; a second driving module, for driving the main positive contactor and the main negative contactor; a first power supply module, respectively connected to the first driving module and the second driving module, for supplying power to the second driving module and turning on or off based on the output of the first driving module; a control module, the control module is communicatively connected to the first driving module and the second driving module respectively, when the control module receives an instruction for indicating disconnecting the high-voltage circuit, it outputs a breaking signal to the first driving module, so that the first driving module controls the circuit breaker to disconnect, and outputs a signal for indicating disconnection to the first power supply module, so that the first power supply module stops supplying power to the second driving module, and the second driving module drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

[0011] For the control device of the high-voltage battery system according to the embodiment of the present invention, the control module is communicatively connected to the first driving module and the second driving module respectively. When the control module receives an instruction for indicating disconnecting the high-voltage circuit, it sends a breaking signal to the first driving module. After receiving the breaking signal, the first driving module drives the circuit breaker to disconnect. The first driving module outputs a signal for indicating disconnection to the first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second driving module, so that the second driving module drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential fault points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0012] In addition, for the control device of the high-voltage battery system according to the above embodiment of the present invention, it may further have the following additional technical features: In some embodiments, the first driving module includes: a first switching transistor and a second switching transistor; the gate of the first switching transistor is communicatively connected to the control module for receiving the open-circuit signal, the drain of the first switching transistor is connected to a first power supply, and the source of the first switching transistor is respectively connected to one end of the circuit breaker and the first power supply module; the gate of the second switching transistor is communicatively connected to the control module for receiving the open-circuit signal, the drain of the second switching transistor is connected to the other end of the circuit breaker, and the source of the second switching transistor is grounded. Thus, the first driving module can efficiently and precisely operate the opening and closing of the circuit breaker under a single instruction of the control module, and simultaneously manage the power supply situation of the first power supply module, realizing the safe and rapid disconnection of the high-voltage circuit.

[0013] In some embodiments, the first power supply module includes: a second power supply and a third switching transistor; the gate of the third switching transistor is connected to the source of the first switching transistor, the source of the third switching transistor is connected to the second power supply, and the drain of the third switching transistor is connected to the second driving module. Thus, the circuit breaker, the main positive contactor, and the main negative contactor can be cut off based on the open-circuit signal, avoiding sending multiple driving instructions to control the disconnection of the circuit breaker, the main positive contactor, and the main negative contactor, enabling the circuit breaker, the main negative contactor, and the main positive contactor to respond quickly and effectively in an emergency, significantly improving the vehicle safety performance, and further protecting the safety of passengers.

[0014] In some embodiments, the first driving module includes: a fourth switching transistor, the gate of the fourth switching transistor is communicatively connected to the control module for receiving the open-circuit signal, the drain of the fourth switching transistor is connected to a third power supply, and the source of the fourth switching transistor is respectively connected to the circuit breaker and the first power supply module. Thus, by operating multiple electrical components with a single control signal, the response efficiency and safety of the device are improved. Especially in an emergency, this design allows for a quick cut-off of the high-voltage circuit, reduces the dependence on multiple independent instructions, simplifies the emergency handling process, and effectively improves the vehicle safety performance, protecting passengers from the risks brought by electrical faults.

[0015] In some embodiments, the first power supply module includes: a fourth power supply and a fifth switching transistor; the gate of the fifth switching transistor is connected to the source of the fourth switching transistor, the source of the fifth switching transistor is connected to the third power supply, and the drain of the fifth switching transistor is connected to the second driving module. Thus, by controlling the logic to finely manage the power supply timing and conditions of different power supplies to their respective loads, the flexibility and reliability of the device are improved. In addition, this structure can quickly cut off or restore the power supply to the second driving module when needed, further enhancing the device's ability to handle emergencies.

[0016] In some embodiments, the first driving module includes: a sixth switch tube, the gate of the sixth switch tube is connected to the control module for receiving the disconnection signal, the drain of the sixth switch tube is connected to the fifth power supply through the circuit breaker, the drain of the sixth switch tube is also connected to the first power supply module, and the source of the sixth switch tube is grounded. Thus, the circuit breaker and the second driving module can be synchronously controlled based only on the disconnection signal of the circuit breaker, ensuring a quick response in an emergency (for example, when the vehicle collides) to ensure the safety of passengers.

[0017] In some embodiments, the first power supply module includes: a sixth power supply, a seventh switch tube and an eighth switch tube; the gate of the seventh switch tube is connected to the drain of the sixth switch tube, the source of the seventh switch tube is grounded, and the drain of the seventh switch tube is connected to the gate of the eighth switch tube; the source of the eighth switch tube is connected to the sixth power supply, and the drain of the eighth switch tube is connected to the second drive module. As a result, not only the flexibility and response speed of the device are improved, but also the safety and stability of the overall circuit are enhanced. Especially in emergency situations such as vehicle collisions, this design allows the high-voltage circuit to be quickly cut off, reduces the reliance on multiple independent instructions, simplifies the emergency handling process, and effectively improves the safety performance of the vehicle, protecting passengers from the risks of electrical failures.

[0018] In some embodiments, the second drive module includes: a main positive contactor drive unit and a main negative contactor drive unit; one end of the main positive contactor drive unit is connected to the first power supply module, and the other end of the main positive contactor drive unit is connected to the main positive contactor; one end of the main negative contactor drive unit is connected to the first power supply module, and the other end of the main negative contactor drive unit is connected to the main negative contactor. Thus, the working state of the first power supply module can be changed based on the disconnection or conduction state of the circuit breaker, and then when the vehicle collides or other emergency situations occur, the circuit breaker, the main positive contactor and the main negative contactor can be controlled to disconnect by only one instruction, thereby improving the response of the high-voltage circuit and driving safety.

[0019] In some embodiments, the control module is used to: upon receiving a collision signal indicating that the vehicle has collided, send a signal requesting to disconnect the high-voltage circuit to the vehicle controller of the vehicle, and receive the disconnection signal returned by the vehicle controller in response to the signal requesting to disconnect the high-voltage circuit. Thus, the control module works closely with the vehicle controller to ensure that the high-voltage circuit can be quickly and effectively disconnected in an emergency (such as a vehicle collision), greatly improving the safety performance of the vehicle and protecting the safety of passengers and the vehicle.

[0020] To achieve the above object, an embodiment of the second aspect of the present invention discloses a high-voltage battery system control method for the high-voltage battery system control device described in any one of the above embodiments of the first aspect of the present invention. The method includes: when receiving an instruction for indicating to disconnect the high-voltage circuit, outputting an open-circuit signal to a first driving module, so that the first driving module controls the circuit breaker to disconnect, and outputting a signal for indicating disconnection to a first power supply module, so that the first power supply module stops supplying power to a second driving module, and the second driving module drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

[0021] According to the high-voltage battery system control method of the embodiment of the present invention, when receiving an instruction for indicating to disconnect the high-voltage circuit, an open-circuit signal is sent to the first driving module. After receiving the open-circuit signal, the first driving module drives the circuit breaker to disconnect. The first driving module outputs a signal for indicating disconnection to the first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second driving module, so that the second driving module drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential fault points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0022] To achieve the above object, an embodiment of the third aspect of the present invention discloses a high-voltage battery system, including: the high-voltage battery system control device described in any one of the above embodiments of the first aspect of the present invention.

[0023] According to the high-voltage battery system of the embodiment of the present invention, the control module is respectively communicatively connected to the first driving module and the second driving module. When the control module receives an instruction for indicating to disconnect the high-voltage circuit, an open-circuit signal is sent to the first driving module. After receiving the open-circuit signal, the first driving module drives the circuit breaker to disconnect. The first driving module outputs a signal for indicating disconnection to the first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second driving module, so that the second driving module drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential fault points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0024] To achieve the above object, an embodiment of the fourth aspect of the present invention discloses a vehicle, including: the high-voltage battery system described in the embodiment of the third aspect of the present invention.

[0025] For a vehicle according to an embodiment of the present invention, a control module is communicatively connected to a first drive module and a second drive module respectively. When the control module receives an instruction for indicating the disconnection of a high-voltage circuit, it sends a disconnection signal to the first drive module. After receiving the disconnection signal, the first drive module drives a circuit breaker to disconnect. The first drive module outputs a signal for indicating disconnection to a first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second drive module, causing the second drive module to drive a main positive contactor and a main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0026] To achieve the above object, an embodiment of the fifth aspect of the present invention discloses a computer-readable storage medium, on which a high-voltage battery system control program is stored. When the high-voltage battery system control program is executed by a processor, it implements the high-voltage battery system control method as described in the second aspect embodiment of the present invention above.

[0027] For a computer-readable storage medium according to an embodiment of the present invention, when the high-voltage battery system control program stored thereon is executed by a processor, in response to receiving an instruction for indicating the disconnection of a high-voltage circuit, it sends a disconnection signal to the first drive module. After receiving the disconnection signal, the first drive module drives a circuit breaker to disconnect. The first drive module outputs a signal for indicating disconnection to a first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second drive module, causing the second drive module to drive a main positive contactor and a main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein: Figure 1 is a schematic structural diagram of a high-voltage battery system control device according to an embodiment of the present invention; Figure 2 is a schematic diagram of bilateral drive according to an embodiment of the present invention; Figure 3 is a schematic diagram of a high-side drive according to another embodiment of the present invention; Figure 4 is a schematic diagram of a low-side drive according to an embodiment of the present invention; Figure 5 is a flowchart of a high-voltage battery system control method according to an embodiment of the present invention; Figure 6 is a structural block diagram of a high-voltage battery system according to an embodiment of the present invention; Figure 7 is a structural block diagram of a vehicle according to an embodiment of the present invention. Detailed Embodiments

[0030] Embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention will be described in detail below.

[0031] Next, reference is made to Figures 1-4 to describe a high-voltage battery system control device according to an embodiment of the present invention.

[0032] Figure 1 is a schematic structural diagram of a high-voltage battery system control device according to an embodiment of the present invention. As Figure 1 shown, the high-voltage battery system control device 1 includes: a high-voltage circuit, a first drive module 12, a second drive module 13, a first power supply module 14, and a control module 15.

[0033] Among them, as Figure 1 shown, the high-voltage circuit includes a battery pack, a circuit breaker, a main positive contactor, a load, and a main negative contactor connected in sequence. One end of the circuit breaker is connected to the positive electrode of the battery pack, and one end of the main negative contactor is connected to the negative electrode of the battery pack; the first drive module 12 is connected to the circuit breaker for driving the circuit breaker; the second drive module 13 is used for driving the main positive contactor and the main negative contactor; the first power supply module 14 is respectively connected to the first drive module 12 and the second drive module 13, for supplying power to the second drive module 13 and turning on or off based on the output of the first drive module 12; the control module 15 is respectively communicatively connected to the first drive module 12 and the second drive module 13. When the control module 15 receives an instruction for indicating to disconnect the high-voltage circuit, it outputs a break signal to the first drive module 12, so that the first drive module 12 controls the circuit breaker to disconnect, and outputs a signal for indicating disconnection to the first power supply module 14, so that the first power supply module 14 stops supplying power to the second drive module 13, and the second drive module 13 drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

[0034] In the embodiment, as Figure 1As shown, the high-voltage circuit is composed of a battery pack, a circuit breaker, a main positive contactor, a load, and a main negative contactor connected in sequence. One end of the circuit breaker is connected to the positive electrode of the battery pack, while the main negative contactor is connected to the negative terminal of the battery pack. Specifically, one end of the circuit breaker is connected to the positive electrode of the battery pack, the other end of the circuit breaker is connected to one end of the main positive contactor, and the other end of the main positive contactor is connected to one end of the load; the negative electrode of the battery pack is connected to one end of the main negative contactor, and the other end of the main negative contactor is connected to the other end of the load.

[0035] The entire high-voltage battery system control device 1 includes two driving modules, namely the first driving module 12 and the second driving module 13. Among them, the first driving module 12 is connected to the circuit breaker to drive the circuit breaker; the second driving module 13 is used to drive the main positive contactor and the main negative contactor to ensure that the main positive contactor and the main negative contactor can correctly connect or disconnect the circuit as needed. In addition, the first power supply module 14 is respectively connected to the first driving module 12 and the second driving module 13 to provide power support for the second driving module 13. Moreover, the operating state of the second driving module 13 is also affected by the output signal of the first driving module 12, that is, based on the state of the first driving module 12 to control the turning on or off of the second driving module 13 to control the power supply to the second driving module 13.

[0036] The control module 15 is respectively communicatively connected to the first driving module 12 and the second driving module 13. After the control module 15 responds to receiving an instruction for indicating the disconnection of the high-voltage circuit, it sends a breaking signal to the first driving module 12. After receiving the breaking signal, the first driving module 12 controls the circuit breaker to disconnect and sends a signal to stop power supply to the first power supply module 14, resulting in the first power supply module 14 stopping the power supply to the second driving module 13. Furthermore, the second driving module 13 drives the main positive contactor and the main negative contactor to disconnect, finally realizing the safe disconnection of the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency (such as when the vehicle collides), significantly improving the vehicle safety performance, and thus protecting the safety of passengers.

[0037] Thus, in an embodiment of the present invention, the control module 15 is communicatively connected to the first driving module 12 and the second driving module 13 respectively. When the control module 15 receives an instruction for indicating the disconnection of the high-voltage circuit, it sends a disconnection signal to the first driving module 12. After receiving the disconnection signal, the first driving module 12 drives the circuit breaker to disconnect. The first driving module 12 outputs a signal for indicating disconnection to the first power supply module 14. When the first power supply module 14 receives the disconnection signal, it stops supplying power to the second driving module 13, so that the second driving module 13 drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0038] In an embodiment of the present invention, as Figure 2 shown, the first driving module 12 includes: a first switching transistor MOS1 and a second switching transistor MOS2; the gate of the first switching transistor MOS1 is communicatively connected to the control module 15 for receiving the disconnection signal, the drain of the first switching transistor MOS1 is connected to the first power supply V1, and the source of the first switching transistor MOS1 is respectively connected to one end of the circuit breaker and the first power supply module 14; the gate of the second switching transistor MOS2 is communicatively connected to the control module 15 for receiving the disconnection signal, the drain of the second switching transistor MOS2 is connected to the other end of the circuit breaker, and the source of the second switching transistor MOS2 is grounded.

[0039] Wherein, the circuit breaker includes, for example, a heating component and a fuse.

[0040] In the embodiment, as Figure 2As shown, the first driving module 12 is a bilateral drive. The first driving module 12 is composed of a first switching transistor MOS1 and a second switching transistor MOS2. Both of these switching transistors are communicatively connected to the control module 15 and controlled by it. Specifically, the gate of the first switching transistor MOS1 receives an open-circuit signal from the control module 15. Its drain is connected to the first power supply V1, and its source is simultaneously connected to one end of the circuit breaker and the first power supply module 14. Such a design enables the first switching transistor MOS1 to respond quickly when the control module 15 issues an open-circuit signal, control the current path by changing its own conduction state, thereby affecting the state of the circuit breaker, and synchronously adjust the power supply to the first power supply module 14. At the same time, the gate of the second switching transistor MOS2 also receives an open-circuit signal from the control module 15. The drain of the second switching transistor MOS2 is connected to the other end of the circuit breaker, and the source of the second switching transistor MOS2 is grounded. This configuration allows the second switching transistor MOS2 to effectively provide a grounding path for the circuit breaker when receiving the open-circuit signal, helping to quickly cut off the circuit. In this way, the first driving module 12 can efficiently and precisely operate the opening and closing of the circuit breaker under a single instruction from the control module 15, while managing the power supply of the first power supply module 14, achieving the safe and rapid disconnection of the high-voltage circuit.

[0041] Specifically, the control module 15 simultaneously sends an open-circuit signal to the gates of the first switching transistor MOS1 and the second switching transistor MOS2. At this time, after the gates of the first switching transistor MOS1 and the second switching transistor MOS2 receive the open-circuit signal, the sources of the first switching transistor MOS1 and the second switching transistor MOS2 switch from a low-level state to a high-level state, causing the first switching transistor MOS1 and the second switching transistor MOS2 to conduct simultaneously. In this way, the first power supply V1 can supply power to the heating component through the first switching transistor MOS1, enabling current to flow through the heating component. The current flows to the ground through the second switching transistor MOS2, and the temperature of the heating component rises as the current flows through. When the temperature of the heating component reaches the temperature of the fuse, the fuse breaks, thereby cutting off the connection between the circuit breaker and the main positive contactor in the high-voltage circuit. As a result, when the first power supply module 14 receives the signal that the circuit breaker is disconnected, it stops supplying power to the main positive contactor and the main negative contactor, thereby driving the main positive contactor and the main negative contactor to disconnect. In this way, the high-voltage circuit can be quickly disconnected based on one instruction, without separately sending drive signals to the circuit breaker, the main positive contactor, and the main negative contactor to drive them to disconnect, simplifying the circuit control and improving the vehicle safety at the same time.

[0042] In an embodiment of the present invention, as Figure 2As shown, the first power supply module 14 includes: a second power supply V2 and a third switching transistor MOS3; the gate of the third switching transistor MOS3 is connected to the source of the first switching transistor MOS1, the source of the third switching transistor MOS3 is connected to the second power supply V2, and the drain of the third switching transistor MOS3 is connected to the second driving module 13.

[0043] In an embodiment, as Figure 2 shown, the gate of the third switching transistor MOS3 is connected to the source of the first switching transistor MOS1, the source of the third switching transistor MOS3 is connected to the second power supply V2, and the drain of the third switching transistor MOS3 is connected to the second driving module 13, such that the second power supply V2 supplies power to the second driving module 13 through the third switching transistor MOS3. In this way, when the first switching transistor MOS1 and the second switching transistor MOS2 are in the conducting state, the operating state of the third switching transistor MOS3 changes, switching from the conducting state to the off state, so that the second power supply V2 stops supplying power to the second driving module 13, and further causes the second driving module 13 to stop sending driving signals to the main positive contactor and the main negative contactor, thereby causing the second driving module 13 to drive the main positive contactor and the main negative contactor to disconnect, thus cutting off the high-voltage circuit.

[0044] Specifically, the control module 15 is communicatively connected to the first driving module 12. When the control module 15 sends an open-circuit signal to the first switching transistor MOS1 and the second switching transistor MOS2, after the gate of the first switching transistor MOS1 receives the open-circuit signal, the source of the first switching transistor MOS1 switches from the low-level state to the high-level state, causing the first switching transistor MOS1 to conduct. At the same time, after the gate of the second switching transistor MOS2 receives the open-circuit signal, the source of the second switching transistor MOS2 switches from the low-level state to the high-level state, causing the second switching transistor MOS2 to conduct. In this way, the first power supply V1 can supply power to the circuit breaker through the first switching transistor MOS1, enabling current to flow through the circuit breaker, that is, the first power supply V1 can supply power to the heating component through the first switching transistor MOS1. After the first switching transistor MOS1 and the second switching transistor MOS2 conduct, current can flow through the heating component, and the temperature of the heating component rises, ultimately reaching the temperature at which the fuse melts, thereby cutting off the circuit connection between the circuit breaker and the main positive contactor.

[0045] Meanwhile, after the first switching transistor MOS1 and the second switching transistor MOS2 are turned on, the gate of the third switching transistor MOS3 switches from a low level state to a high level state, turning off the third switching transistor MOS3. In this way, the second power supply V2 cannot supply power to the second driving module 13 through the third switching transistor MOS3, causing the second driving module 13 to lose the driving signal to drive the main negative contactor and the main positive contactor to disconnect, thereby cutting off the high-voltage circuit. This can cut off the circuit breaker, the main positive contactor, and the main negative contactor based on the open-circuit signal, avoiding sending multiple driving instructions to control the disconnection of the circuit breaker, the main positive contactor, and the main negative contactor, enabling the circuit breaker, the main negative contactor, and the main positive contactor to respond quickly and effectively in an emergency, significantly improving the vehicle safety performance, and thus protecting the safety of passengers.

[0046] In an embodiment of the present invention, as Figure 3 shown, the first driving module 12 includes: a fourth switching transistor MOS4. The gate of the fourth switching transistor MOS4 is communicatively connected to the control module 15 for receiving an open-circuit signal. The drain of the fourth switching MOS4 transistor is connected to the third power supply V3, and the source of the fourth switching transistor MOS4 is respectively connected to the circuit breaker and the first power supply module 14.

[0047] In the embodiment, as Figure 3 shown, the first driving module 12 is, for example, a high-side drive. Specifically, the gate of the fourth switching transistor MOS4 is communicatively connected to the control module 15, and the control module 15 can send an open-circuit signal to the gate of the fourth switching transistor MOS4. When the gate of the fourth switching transistor MOS4 receives the open-circuit signal, the source of the fourth switching transistor MOS4 switches from a low level state to a high level state, turning on the fourth switching transistor MOS4.

[0048] The drain of the fourth switching transistor MOS4 is connected to the third power supply V3, and the source of the fourth switching transistor MOS4 is respectively connected to the circuit breaker and the first power supply module 14. Therefore, when the fourth switching transistor MOS4 is turned on, the third power supply V3 can supply power to the circuit breaker through the fourth switching transistor MOS4, so that current flows through the heating component, causing the temperature of the heating component to rise. When the temperature of the heating component reaches the temperature capable of melting the fuse, the connection between the circuit breaker and the main positive contactor can be cut off. At the same time, a signal indicating that the circuit breaker is disconnected is sent to the first power supply module 14. At this time, the first power supply module 14 stops supplying power to the second driving module 13, and the second driving module 13 loses the driving signal, driving the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit.

[0049] In this way, the operation of multiple electrical components through a single control signal improves the response efficiency and safety of the device. Especially in emergency situations, this design allows for the rapid disconnection of the high-voltage circuit, reduces the dependence on multiple independent instructions, simplifies the emergency handling process, and effectively enhances the safety performance of the vehicle, protecting passengers from the risks brought by electrical faults.

[0050] In one embodiment of the present invention, as Figure 3 shown, the first power supply module 14 includes: a fourth power supply V4 and a fifth switching transistor MOS5; the gate of the fifth switching transistor MOS5 is connected to the source of the fourth switching transistor MOS4, the source of the fifth switching transistor MOS5 is connected to the fourth power supply V4, and the drain of the fifth switching transistor MOS5 is connected to the second driving module 13.

[0051] In the embodiment, as Figure 3 shown, the gate of the fifth switching transistor MOS5 is connected to the source of the fourth switching transistor MOS4. This connection method allows the operating state of the fifth switching transistor MOS5 to be indirectly affected by controlling the state of the fourth switching transistor MOS4. When the fourth switching transistor MOS4 is turned on, the potential change at the source of the fourth switching transistor MOS4 can trigger a change in the gate voltage of the fifth switching transistor MOS5, thereby controlling the turning on or off of the fifth switching transistor MOS5. That is, when the fourth switching transistor MOS4 is turned on, the gate of the fifth switching transistor MOS5 switches from a low-level state to a high-level state, causing the fifth switching transistor MOS5 to turn off.

[0052] The source of the fifth switching transistor MOS5 is connected to the fourth power supply V4. In the case where the fifth switching transistor MOS5 is turned on, the drain of the fifth switching transistor MOS5 is connected to the second driving module 13, ensuring that when the fifth switching transistor MOS5 is in the on state, the fourth power supply V4 can supply power to the second driving module 13, providing the necessary driving signal to drive the main negative contactor and the main positive contactor to turn on.

[0053] However, when the fourth switching transistor MOS4 is turned on, the fifth switching transistor MOS5 is turned off, causing the fourth power supply V4 to be unable to supply power to the second driving module 13 through the fifth switching transistor MOS5, resulting in the second driving module 13 losing the driving signal, thereby driving the main positive contactor and the main positive contactor to disconnect, and then cutting off the high-voltage circuit. The purpose of this design is to finely manage the power supply timing and conditions of different power supplies to their respective loads through control logic, improving the flexibility and reliability of the device. In addition, this structure can quickly cut off or restore the power supply to the second driving module 13 when needed, further enhancing the device's ability to handle emergency situations.

[0054] In one embodiment of the present invention, as Figure 4As shown, the first driving module 12 includes: a sixth switching transistor MOS6. The gate of the sixth switching transistor MOS6 is communicatively connected to the control module 15 for receiving an open circuit signal. The drain of the sixth switching transistor MOS6 is connected to the fifth power supply V5 through a circuit breaker. The drain of the sixth switching transistor MOS6 is also connected to the first power supply module 14, and the source of the sixth switching transistor MOS6 is grounded.

[0055] In an embodiment, as Figure 4 shown, the first driving module 12 is, for example, a low-side drive. The gate of the sixth switching transistor MOS6 is communicatively connected to the control module 15, enabling the sixth switching transistor MOS6 to receive an open circuit signal from the control module 15 to control the conduction state of the sixth switching transistor MOS6. Specifically, when the gate of the sixth switching transistor MOS6 receives an open circuit signal, the operating state of the sixth switching transistor MOS6 changes, causing the source of the sixth switching transistor MOS6 to switch from a low level state to a high level state, thereby turning on the sixth switching transistor MOS6.

[0056] On the one hand, the drain of the sixth switching transistor MOS6 is connected to the fifth power supply V5 through a circuit breaker, which means that when the sixth switching transistor MOS6 is turned on, the fifth power supply V5 can supply power to the circuit breaker through this path. On the other hand, the drain of the sixth switching transistor MOS6 is also connected to the first power supply module 14. When the sixth switching transistor MOS6 is turned on, the operating state of the first power supply module 14 changes from a conducting state to an off state, so that the first power supply module 14 stops supplying power to the second driving module 13, causing the second driving module 13 to drive the main positive contactor and the main negative contactor to open, thereby opening the high-voltage circuit.

[0057] In addition, the source of the sixth switching transistor MOS6 is grounded, providing a complete loop for the current to ensure that when the sixth switching transistor MOS6 is turned on, the current can flow from the fifth power supply V5 to the ground.

[0058] By designing the connection between the drain of the sixth switching transistor MOS6 and the first power supply module 14, the circuit breaker and the second driving module 13 can be synchronously controlled based only on the open circuit signal of the circuit breaker, ensuring a quick response in an emergency (such as when the vehicle collides) to protect the safety of passengers.

[0059] In an embodiment of the present invention, as Figure 4As shown, the first power supply module includes: a sixth power supply V6, a seventh switching transistor MOS7, and an eighth switching transistor MOS8; the gate of the seventh switching transistor MOS7 is connected to the drain of the sixth switching transistor MOS6, the source of the seventh switching transistor MOS7 is grounded, and the drain of the seventh switching transistor MOS7 is connected to the gate of the eighth switching transistor MOS8; the source of the eighth switching transistor MOS8 is connected to the sixth power supply V6, and the drain of the eighth switching transistor MOS8 is connected to the second driving module 13.

[0060] In the embodiment, the gate of the seventh switching transistor MOS7 is connected to the drain of the sixth switching transistor MOS6. This connection means that the operating state of the sixth switching transistor MOS6 can directly affect the state of the seventh switching transistor MOS7. When the sixth switching transistor MOS6 is turned on, the potential change at the drain of the sixth switching transistor MOS6 is transmitted to the gate of the seventh switching transistor MOS7, thereby controlling the turn-on or turn-off of the seventh switching transistor MOS7. The source of the seventh switching transistor MOS7 is grounded, and its drain is connected to the gate of the eighth switching transistor MOS8, forming a signal transmission path for controlling the conduction state of the eighth switching transistor MOS8.

[0061] The source of the eighth switching transistor MOS8 is directly connected to the sixth power supply V6, and the drain of the eighth switching transistor MOS8 is connected to the second driving module 13, ensuring that when the eighth switching transistor MOS8 is in the on state, the sixth power supply V6 can supply power to the second driving module 13 and provide a driving signal for it.

[0062] Specifically, when the sixth switching transistor MOS6 is in the on state, the source of the sixth switching transistor MOS6 switches from a low level state to a high level state, and then the level state of the gate of the seventh switching transistor MOS7 changes, also switching from a low level state to a high level state, that is, the drain of the seventh switching transistor MOS7 is in a high level state. At this time, the seventh switching transistor MOS7 is turned off. Since the drain of the seventh switching transistor MOS7 is connected to the gate of the eighth switching transistor MOS8, the gate of the eighth switching transistor MOS8 is also in a high level state, and the eighth switching transistor MOS8 is turned off. In this way, the sixth power supply V6 cannot supply power to the second driving module 13 through the eighth switching transistor MOS8, causing the second driving module 13 to lose the driving signal, and then driving the main positive contactor and the main negative contactor to disconnect.

[0063] In this way, the system can indirectly manage the power supply to the second drive module 13 by controlling the state of the sixth switching transistor MOS6, achieving precise management of power distribution and circuit control. This design not only improves the flexibility and response speed of the device, but also enhances the safety and stability of the overall circuit. Especially in emergency situations such as vehicle collisions, this design allows for quick disconnection of the high-voltage circuit, reducing the dependence on multiple independent instructions, simplifying the emergency handling process, and effectively improving the vehicle's safety performance, protecting passengers from the risks brought by electrical failures.

[0064] In an embodiment of the present invention, as shown in combination with Figure 2 、 Figure 3 and Figure 4 , the second drive module 13 includes: a main positive contactor drive unit and a main negative contactor drive unit; one end of the main positive contactor drive unit is connected to the first power supply module 14, and the other end of the main positive contactor drive unit is connected to the main positive contactor; one end of the main negative contactor drive unit is connected to the first power supply module 14, and the other end of the main negative contactor drive unit is connected to the main negative contactor.

[0065] In the embodiment, as shown in combination with Figure 2 、 Figure 3 and Figure 4 , one end of the main positive contactor drive unit is connected to the first power supply module 14 and the other end of the main positive contactor drive unit is connected to the main positive contactor. In this way, when the first power supply module 14 receives a signal that the circuit breaker is disconnected, it stops sending a drive signal to the main positive contactor drive unit to drive the main positive contactor to disconnect; when the first power supply module 14 does not receive a signal that the circuit breaker is disconnected, it continues to send a drive signal to the main positive contactor to drive the main positive contactor to continue working and maintain the current conducting state.

[0066] Similarly, one end of the main negative contactor drive unit is connected to the first power supply module 14 and the other end of the main negative contactor drive unit is connected to the main negative contactor. In this way, when the first power supply module 14 receives a signal that the circuit breaker is disconnected, it stops sending a drive signal to the main negative contactor drive unit to drive the main negative contactor to disconnect; when the first power supply module 14 does not receive a signal that the circuit breaker is disconnected, it continues to send a drive signal to the main negative contactor to drive the main negative contactor to continue working and maintain the current conducting state.

[0067] In this way, based on the disconnection or conduction state of the circuit breaker, the working state of the first power supply module 14 can be changed. Furthermore, in the event of a vehicle collision or other emergency situation, only one instruction is required to control the disconnection of the circuit breaker, the main positive contactor, and the main negative contactor, improving the response of the high-voltage circuit and driving safety.

[0068] In an embodiment of the present invention, the control module 15 is configured to: when receiving a collision signal indicating that the vehicle has collided, send a signal requesting to disconnect the high-voltage circuit to the vehicle's vehicle controller, and receive a disconnection signal returned by the vehicle controller in response to the signal requesting to disconnect the high-voltage circuit.

[0069] In the embodiment, as Figure 1 shown, for example, a collision signal indicating that the vehicle has collided is sent to the control module 15 through the battery management system. Among them, the battery management system is communicatively connected to the control module 15. At the same time, the battery management system is also communicatively connected to the vehicle controller, and the control module 15 is also communicatively connected to the vehicle controller. When the control module 15 receives the collision signal sent by the battery management system, the control module 15 will immediately send a request to the vehicle's vehicle controller to disconnect the high-voltage circuit to ensure safety, aiming to quickly cut off the high-voltage circuit that may become dangerous due to the collision and prevent secondary accidents such as electric shock and fire. After receiving the signal requesting to disconnect the high-voltage circuit sent by the control module 15, the vehicle controller will perform corresponding processing and return a disconnection signal to the control module 15. This disconnection signal is the response of the vehicle controller to the request, confirming that the high-voltage circuit is allowed to be safely disconnected. In this way, the control module 15 and the vehicle controller cooperate closely to ensure that the high-voltage circuit can be quickly and effectively cut off in an emergency (such as a vehicle collision), greatly improving the safety performance of the vehicle and protecting the safety of passengers and the vehicle.

[0070] According to the high-voltage battery system control device 1 of the embodiment of the present invention, the control module 15 is communicatively connected to the first drive module 12 and the second drive module 13 respectively. When the control module 15 receives an instruction indicating to disconnect the high-voltage circuit, it sends a disconnection signal to the first drive module 12. After receiving the disconnection signal, the first drive module 12 drives the circuit breaker to disconnect, and the first drive module 12 outputs a signal indicating disconnection to the first power supply module 14. When the first power supply module 14 receives the disconnection signal, it stops supplying power to the second drive module 13, so that the second drive module 13 drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the safety performance of the vehicle and thus protecting the safety of passengers.

[0071] A further embodiment of the present invention also discloses a high-voltage battery system control method, which is used for the high-voltage battery system control device described in any one of the first aspects of the present invention.

[0072] As Figure 5As shown, it is a flowchart of the high-voltage battery system control method according to an embodiment of the present invention, and this method at least includes step S1.

[0073] Step S1, when responding to the received instruction for indicating to disconnect the high-voltage circuit, output an open-circuit signal to the first drive module, so that the first drive module controls the circuit breaker to disconnect, and output a signal for indicating disconnection to the first power supply module, so that the first power supply module stops supplying power to the second drive module, and the second drive module drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

[0074] In an embodiment of the present invention, the high-voltage battery system control method further includes: when receiving a collision signal for indicating that a vehicle collision has occurred, send a signal requesting to disconnect the high-voltage circuit to the vehicle's vehicle controller, and receive an open-circuit signal returned by the vehicle controller in response to the signal requesting to disconnect the high-voltage circuit.

[0075] According to the high-voltage battery system control method of the embodiment of the present invention, when responding to the received instruction for indicating to disconnect the high-voltage circuit, send an open-circuit signal to the first drive module. After receiving this open-circuit signal, the first drive module drives the circuit breaker to disconnect. The first drive module outputs a signal for indicating disconnection to the first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to the second drive module, so that the second drive module drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance, and further protecting the safety of passengers.

[0076] A further embodiment of the present invention also discloses a high-voltage battery system.

[0077] As Figure 6 shown, the high-voltage battery system 2 includes the high-voltage battery system control device 1 described in the above embodiment of the present invention.

[0078] According to the high-voltage battery system 2 of an embodiment of the present invention, the control module 15 is communicatively connected to the first driving module 12 and the second driving module 13 respectively. When the control module 15 receives an instruction for indicating the disconnection of the high-voltage circuit, it sends a disconnection signal to the first driving module 12. After receiving the disconnection signal, the first driving module 12 drives the circuit breaker to disconnect. The first driving module 12 outputs a signal for indicating disconnection to the first power supply module 14. When the first power supply module 14 receives the disconnection signal, it stops supplying power to the second driving module 13, so that the second driving module 13 drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0079] A further embodiment of the present invention also discloses a vehicle.

[0080] In some embodiments, as Figure 7 shown, the vehicle 3 includes the high-voltage battery system 2 described in the above embodiments of the present invention.

[0081] According to the vehicle 3 of an embodiment of the present invention, the control module 15 is communicatively connected to the first driving module 12 and the second driving module 13 respectively. When the control module 15 receives an instruction for indicating the disconnection of the high-voltage circuit, it sends a disconnection signal to the first driving module 12. After receiving the disconnection signal, the first driving module 12 drives the circuit breaker to disconnect. The first driving module 12 outputs a signal for indicating disconnection to the first power supply module 14. When the first power supply module 14 receives the disconnection signal, it stops supplying power to the second driving module 13, so that the second driving module 13 drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance and further protecting the safety of passengers.

[0082] A further embodiment of the present invention also discloses a computer-readable storage medium, on which a high-voltage battery system control program is stored. When the high-voltage battery system control program is executed by a processor, it implements the high-voltage battery system control method described in the second embodiment of the present invention above.

[0083] A computer-readable storage medium according to an embodiment of the present invention, when a high-voltage battery system control program stored thereon is executed by a processor, in response to an instruction received for indicating disconnection of a high-voltage circuit, sends a disconnection signal to a first drive module. After receiving the disconnection signal, the first drive module drives the circuit breaker to disconnect. The first drive module outputs a signal for indicating disconnection to a first power supply module. When the first power supply module receives the disconnection signal, it stops supplying power to a second drive module, so that the second drive module drives the main positive contactor and the main negative contactor to disconnect, thereby cutting off the high-voltage circuit. In this way, the high-voltage circuit can be cut off according to one instruction, which is simple and fast. Thus, it not only reduces the complexity and potential failure points brought by multiple instructions, but also ensures that the device can respond quickly and effectively in an emergency, significantly improving the vehicle safety performance, and further protecting the safety of passengers.

[0084] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0085] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high voltage battery system control device, characterized in that: include: A high-voltage circuit, the high-voltage circuit comprising a battery pack, a circuit breaker, a main positive contactor, a load and a main negative contactor connected in sequence, one end of the circuit breaker is connected to the positive electrode of the battery pack, and one end of the main negative contactor is connected to the negative electrode of the battery pack; A first driving module, connected to the circuit breaker, and used to drive the circuit breaker; A second driving module, used for driving the main positive contactor and the main negative contactor; A first power supply module, respectively connected to the first driving module and the second driving module, for supplying power to the second driving module and being turned on or off based on the output of the first driving module; A control module, wherein the control module is communicatively connected with the first drive module and the second drive module respectively, and when responding to a received instruction for instructing to disconnect a high-voltage circuit, the control module outputs a circuit-breaking signal to the first drive module so that the first drive module controls the circuit breaker to disconnect, and outputs a signal for instructing disconnection to the first power supply module so that the first power supply module stops supplying power to the second drive module, so that the second drive module drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

2. The high-voltage battery system control device according to claim 1, characterized in that: The first driving module includes: a first switch tube and a second switch tube; The gate of the first switch tube is communicatively connected to the control module for receiving the circuit-breaking signal, the drain of the first switch tube is connected to the first power supply, and the source of the first switch tube is respectively connected to one end of the circuit breaker and the first power supply module; The gate of the second switch tube is communicatively connected to the control module for receiving the circuit-breaking signal, the drain of the second switch tube is connected to the other end of the circuit breaker, and the source of the second switch tube is grounded.

3. The high-voltage battery system control device according to claim 2, characterized in that: The first power supply module includes: a second power supply and a third switch tube; The gate of the third switch tube is connected to the source of the first switch tube, the source of the third switch tube is connected to the second power supply, and the drain of the third switch tube is connected to the second driving module.

4. The high-voltage battery system control device according to claim 1, characterized in that: The first driving module comprises: A fourth switch tube, wherein the gate of the fourth switch tube is communicatively connected to the control module and is used to receive the circuit-breaking signal, the drain of the fourth switch tube is connected to the third power supply, and the source of the fourth switch tube is respectively connected to the circuit breaker and the first power supply module.

5. The high-voltage battery system control device according to claim 4, characterized in that: The first power supply module includes: a fourth power supply and a fifth switch tube; The gate of the fifth switch tube is connected to the source of the fourth switch tube, the source of the fifth switch tube is connected to the fourth power supply, and the drain of the fifth switch tube is connected to the second driving module.

6. The high-voltage battery system control device according to claim 1, characterized in that: The first driving module comprises: A sixth switch tube, wherein the gate of the sixth switch tube is communicatively connected to the control module for receiving the circuit-breaking signal, the drain of the sixth switch tube is connected to the fifth power supply through the circuit breaker, the drain of the sixth switch tube is also connected to the first power supply module, and the source of the sixth switch tube is grounded.

7. The high-voltage battery system control device according to claim 6, characterized in that: The first power supply module includes: a sixth power supply, a seventh switch tube and an eighth switch tube; The gate of the seventh switch tube is connected to the drain of the sixth switch tube, the source of the seventh switch tube is grounded, and the drain of the seventh switch tube is connected to the gate of the eighth switch tube; A source of the eighth switch tube is connected to the sixth power source, and a drain of the eighth switch tube is connected to the second driving module.

8. The high-voltage battery system control device according to claim 1, characterized in that: The second driving module includes: a main positive contactor driving unit and a main negative contactor driving unit; One end of the main positive contactor drive unit is connected to the first power supply module, and the other end of the main positive contactor drive unit is connected to the main positive contactor; One end of the main negative contactor driving unit is connected to the first power supply module, and the other end of the main negative contactor driving unit is connected to the main negative contactor.

9. The high-voltage battery system control device according to claim 1, characterized in that: The control module is used for: When a collision signal indicating a vehicle collision is received, a signal requesting disconnection of a high-voltage circuit is sent to a vehicle controller of the vehicle, and the disconnection signal returned by the vehicle controller in response to the signal requesting disconnection of the high-voltage circuit is received.

10. A high-voltage battery system control method, used in the high-voltage battery system control device according to any one of claims 1 to 9, the method comprising: In response to a received instruction for instructing to disconnect the high-voltage circuit, a circuit-breaking signal is output to the first drive module so that the first drive module controls the circuit breaker to disconnect, and a signal for instructing to disconnect is output to the first power supply module so that the first power supply module stops supplying power to the second drive module, so that the second drive module drives the main positive contactor and the main negative contactor to disconnect, thereby disconnecting the high-voltage circuit.

11. A high voltage battery system, characterized in that: include: A high voltage battery system control device as claimed in any one of claims 1 to 9.

12. A vehicle, characterized in that: include: The high voltage battery system as claimed in claim 11.

13. A computer-readable storage medium, characterized in that: The computer readable storage device stores a high-voltage battery system control program, and when the high-voltage battery system control program is executed by the processor, the high-voltage battery system control method according to claim 10 is implemented.

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