Brake control device and vehicle

Abstract

The utility model discloses a brake control device and a vehicle. The brake control device comprises a first brake controller and a second brake controller, the output end of the information acquisition module is connected with the first brake controller, and the information acquisition module is used for acquiring vehicle information; the control end of the brake driving module and the control end of the steering driving module are both connected with the first brake controller and used for driving braking and steering of the vehicle respectively. In the mode, the driving module needed by steering is added in the brake control device, the brake controller is reused for steering control, the steering control device does not need to be additionally and independently arranged, hardware resource repetition and software repetition development of braking and steering can be reduced, and therefore the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a brake control device and a vehicle. BACKGROUND

[0002] At present, the control system of a vehicle usually designs steering control and brake control as two independent systems respectively, and different suppliers can only make a steering control system or a brake control system, and when developing a vehicle, a steering control system and a brake control system usually need to be purchased from different suppliers. This way of separately designing a steering control system and a brake control system has more repeated hardware resources and repeated software development, and has a high cost. CONTENT OF THE UTILITY MODEL

[0003] The technical problem solved by the present application is to provide a brake control device and a vehicle, wherein a driving module required for steering is added in the brake control device, and steering control is multiplexed with a brake controller, so that the repeated hardware resources and repeated software development of brake and steering can be reduced, thereby reducing the cost.

[0004] To solve the above technical problem, one technical solution adopted by the present application is to provide a brake control device, comprising: a first brake controller; an information acquisition module, an output end of the information acquisition module being connected with the first brake controller, for acquiring vehicle information; a brake driving module and a steering driving module, a control end of the brake driving module and a control end of the steering driving module being connected with the first brake controller, respectively for driving the brake and steering of the vehicle.

[0005] Optionally, the steering driving module comprises a steering driving assembly and a steering motor position sensor, the steering driving assembly comprises a steering driving circuit and a steering motor, a control end of the steering driving circuit is connected with the first brake controller, a driving output end of the steering driving circuit is connected with a control end of the steering motor, the steering motor position sensor is integrated on the steering motor, and an output end of the steering motor position sensor is connected with the first brake controller.

[0006] Optionally, the information acquisition module comprises a first communication unit, a wheel speed sensor and a torque angle sensor, one end of the first communication unit is used for being connected with a controller in a vehicle chassis, the other end of the first communication unit, an output end of the wheel speed sensor and an output end of the torque angle sensor are all connected with the first brake controller.

[0007] Optionally, the power supply end of each brake driving assembly in the brake driving module and the power supply end of the steering driving assembly in the steering driving module are configured to be connected to a vehicle storage battery; and / or, the brake control device further comprises a first system basic chip, the power supply end of the first system basic chip is configured to be connected to the vehicle storage battery, the wake-up end of the first system basic chip is configured to be connected to an ignition switch of the vehicle, and the voltage output end of the first system basic chip is configured to be connected to the power supply end of the first brake controller, the power supply end of each device in the information acquisition module, the power supply end of the brake motor position sensor in the brake driving module, and the power supply end of the steering motor position sensor in the steering driving module.

[0008] Optionally, the brake driving module comprises at least a first parking brake driving assembly, and the control end of the first parking brake driving assembly is connected to the first brake controller.

[0009] Optionally, the brake driving module further comprises an electronic brake driving assembly and a brake electromagnetic valve assembly, and the control end of the electronic brake driving assembly and the control end of the brake electromagnetic valve assembly are both connected to the first brake controller; and / or, the brake control device further comprises a second communication unit, one end of the second communication unit is configured to be connected to a parking brake switch of the vehicle, and the other end of the second communication unit is connected to the first brake controller.

[0010] Optionally, the brake control device further comprises a third communication unit and a second brake controller, one end of the third communication unit is configured to be connected to the parking brake switch of the vehicle, the other end of the third communication unit is connected to the second brake controller, and the second brake controller is further connected to the first brake controller in communication.

[0011] Optionally, the brake driving module further comprises a second parking brake driving assembly, and the control end of the second parking brake driving assembly is connected to the second brake controller.

[0012] Optionally, the third communication unit is a second system basic chip with communication function, and the power supply end of the second system basic chip is configured to be connected to the vehicle storage battery, the wake-up end of the second system basic chip is configured to be connected to the ignition switch of the vehicle, and the voltage output end of the second system basic chip is configured to be connected to the power supply end of the second brake controller and the power supply end of the third communication unit.

[0013] To solve the above technical problems, another technical solution adopted by the present application is to provide a vehicle comprising the brake control device described in any of the preceding embodiments.

[0014] The above scheme, the brake control device includes a first brake controller, an information acquisition module, a brake driving module and a steering driving module. Among them, the output end of the information acquisition module is connected with the first brake controller, and the vehicle information is acquired; the control end of the brake driving module and the control end of the steering driving module are connected with the first brake controller, and are respectively used for driving the brake and steering of the vehicle. In this way, the driving module required for steering is added in the brake control device, and the steering control is multiplexed with the brake controller, without separately setting a steering control device, which can reduce the hardware resource duplication and software repeated development of brake and steering, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of an embodiment of the steering control device provided by the present application;

[0016] Figure 2 is a structural schematic diagram of an embodiment of the brake control device provided by the present application;

[0017] Figure 3 is a structural schematic diagram of another embodiment of the brake control device provided by the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and embodiments.

[0019] It should be noted that the term "and / or" in this paper is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the terms "second", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0020] The steering control device and the brake control device of the vehicle are the core components to determine the driving safety, maneuverability and comfort of the vehicle. Among them, the steering control device is used to convert the steering input of the driver into the steering action of the wheel to control the driving direction of the vehicle. The brake control device is used to control the deceleration or parking of the vehicle.

[0021] At present, the steering control device and the brake control device are independently designed with corresponding controllers, communication modules, power supply modules and other hardware resources. On the one hand, there is hardware resource duplication between the two, resulting in high hardware cost and hardware resource waste. On the other hand, due to the need of the controller of the two for the vehicle universal software (bottom software), the universal software is repeatedly developed. Therefore, the scheme of independently designing the steering control device and the brake control device has high cost.

[0022] Referring to Figure 1 , Figure 1 is a structural schematic diagram of an embodiment of the steering control device provided in the present application. As shown in Figure 1 , the steering control device 10 comprises an angle sensor 11, a torque sensor 12, a steering controller 13, a steering drive module 14, a communication module 16 and a power supply module 15.

[0023] The output end of the angle sensor 11 and the output end of the torque sensor 12 are both connected with the steering controller 13. The angle sensor 11 is used to acquire the steering wheel rotation angle, and the torque sensor 12 is used to acquire the torque applied by the driver on the steering wheel.

[0024] The steering drive module 14 comprises a steering drive assembly and a steering MPS 143 (Motor Position Sensor). Further, the steering drive assembly comprises a steering drive circuit 141 and a steering motor 142. The control end of the steering drive circuit 141 is connected with the steering controller 13, and the driving output end of the steering drive circuit 141 is connected with the control end of the steering motor 142, and the steering drive circuit 141 is used to drive the steering motor 142. Further, the steering drive circuit 141 comprises a steering pre-drive sub-circuit and a steering motor 142 drive bridge (for example, a three-phase inverter bridge composed of MOSFET or IGBT), and the steering pre-drive sub-circuit is used to improve the current driving capability of the steering controller 13, so that the steering controller 13 can control the on-off of the switching tube in the steering motor 142 drive bridge. The steering MPS 143 is integrated on the steering motor 142, and the output end of the steering MPS 143 is connected with the steering controller 13, and the steering MPS 143 is used to acquire the rotor position of the steering motor 142.

[0025] The power supply module 15 comprises a first power supply module 151 and a second power supply module 152. The voltage input end of the first power supply module 151 is used to be connected with the vehicle storage battery, the voltage output end of the first power supply module 151 is connected with the power supply end of the steering drive circuit 141, and the first power supply module 151 is used to convert the voltage of the vehicle storage battery into a suitable and stable voltage to supply power for the steering drive circuit 141. The voltage input end of the second power supply module 152 is connected with the voltage output end of the first power supply module 151, and the second power supply module 152 is used to convert the output voltage of the first power supply module 151 into a suitable and stable voltage (for example, 5V, 3.3V) to supply power for the steering controller 13 and other sensors (such as the angle sensor 11, the torque sensor 12 and the motor position sensor) in the steering control device 10, etc.

[0026] The communication module 16 is connected to the steering controller 13 at one end, and is connected to the brake controller in the brake control device and the controllers in the vehicle chassis at the other end, for realizing information interaction between the steering controller 13 and the brake controller and the controllers in the vehicle chassis. Exemplarily, the communication module 16 is a CAN (Controller Area Network) module.

[0027] The steering controller 13 is configured to receive signals of the angle sensor 11, the torque sensor 12, the steering MPS 143 and the communication module 16, calculate the required motor assistance, and transmit the control instruction to the steering pre-driver sub-circuit in the steering drive circuit 141 through a digital signal such as SPI or PWM, and the steering pre-driver circuit converts the digital signal into an analog signal to control the steering motor 142 to drive the bridge output motor three-phase current, and finally drive the motor to rotate. Exemplarily, the steering controller 13 is an MCU (Microcontroller Unit).

[0028] As shown in the steering control device 10 shown in Figure 1 , if the steering control device 10 is designed separately, the corresponding sensors, controllers, communication modules and power modules need to be designed separately to realize the steering control function.

[0029] Please refer to Figure 2 , Figure 2 is a structural schematic diagram of an embodiment of the brake control device provided by the present application. As shown in Figure 2 , the brake control device 20 includes a first brake controller 21, an information acquisition module 22, a brake drive module 23 and a steering drive module 14. The output end of the information acquisition module 22 is connected to the first brake controller 21, and is configured to acquire vehicle information. For example, the information such as the steering wheel angle of the vehicle, the torque applied by the driver on the steering wheel, the wheel speed and the like is acquired. The control end of the brake drive module 23 and the control end of the steering drive module 14 are both connected to the first brake controller 21, and are respectively configured to drive the brake and the steering of the vehicle. The brake control device 20 is configured to generate a control instruction based on the information output by the information acquisition module 22, to control the brake drive module 23 and the steering drive module 14. Exemplarily, the brake controller is an MCU (Microcontroller Unit).

[0030] In this embodiment, the drive module required for steering is added in the brake control device, and the steering control is multiplexed with the brake controller, without the need to additionally separately set up a steering control device, which can reduce the repeated hardware resources and software development of the brake and the steering, thereby reducing the cost.

[0031] Please refer to Figure 3 ,Figure 3 is a structural schematic diagram of another embodiment of the brake control device provided in the present application. In the embodiment, the brake control device 20 comprises an information acquisition module, a first brake controller 21, a brake driving module, and a steering driving module Figure 3 The labels of the information acquisition module, the brake driving module, and the steering driving module are not shown in the figure.

[0032] In the embodiment, the information acquisition module specifically comprises a first communication unit Figure 3 The first communication unit and its label are not specifically shown in the figure.

[0033] Specifically, one end of the first communication unit is used for connection with a controller in a vehicle chassis, and the other end of the first communication unit is connected with the first brake controller 21. Exemplarily, the first brake controller 21 can be connected with external controllers such as a vehicle control unit, an intelligent driving controller, an auxiliary driving controller, etc. through the first communication unit, so as to acquire information transmitted by the external controllers, and also can provide information such as vehicle speed, wheel speed, brake pressure, ABS / ESC function activation state, etc. to the external controllers through the first communication unit. Exemplarily, the first communication unit is a CAN module (CAN interface or CAN transceiver), or the first communication unit can be other devices with CAN communication function, and the embodiment does not specifically limit this.

[0034] An output end of a wheel speed sensor 221 (WSS, Wheel Speed Sensor) is connected with the first brake controller 21. Specifically, the output end of the wheel speed sensor 221 is connected with the first brake controller 21 through a first interface 223. Exemplarily, the first interface 223 is an AK interface (AK Interface).

[0035] An output end of a torque and steering angle sensor 222 (TAS, Torque and Steering Angle Sensor) is connected with the first brake controller 21. Specifically, the output end of the torque and steering angle sensor 222 is connected with the first brake controller 21 through a second interface 224. Exemplarily, the second interface 224 is a SENT interface (Single Edge Nibble Transmission Interface).

[0036] Exemplarily, the first interface 223 and the second interface 224 can be integrally arranged on a circuit board where the first brake controller 21 is located, and the wheel speed sensor and the torque and steering angle sensor 222 can be connected with the corresponding interfaces through a wire harness and a connector.

[0037] In the embodiment, the steering drive module specifically comprises a steering drive assembly and a steering MPS 143. The steering drive assembly further comprises a steering drive circuit 141 and a steering motor 142. A control end of the steering drive circuit 141 is connected with the first brake controller 21, and a drive output end of the steering drive circuit 141 is connected with a control end of the steering motor 142. The related content of the steering drive circuit 141 can be referred to Figure 1 In the embodiment shown in the figure, no further description is given here. The steering MPS 143 is integrated on the steering motor 142, and an output end of the steering MPS 143 is connected with the first brake controller 21 to feed back the rotor position of the steering motor 142 to the first brake controller 21.

[0038] For example, the steering drive circuit 141 in the steering drive assembly is integrated on a circuit board where the first brake controller 21 is located, and the steering motor 142 is arranged outside the circuit board and connected with the steering drive circuit 141 in the circuit board through a wire harness. Since the steering motor 142 and the brake-related devices are distributed in different positions of the vehicle, by arranging the steering motor 142 outside the circuit board, the circuit board is miniaturized, thereby facilitating the arrangement of the circuit board in the vehicle.

[0039] In the embodiment, the brake drive module at least comprises a first parking brake drive assembly, and a control end of the first parking brake drive assembly is connected with the first brake controller 21. The first parking brake drive assembly is used to realize the parking brake and emergency brake functions of the vehicle.

[0040] Specifically, the first parking brake drive assembly comprises a first parking brake drive circuit 231 and a first parking brake motor 232. A control end of the first parking brake drive circuit 231 is connected with the first brake controller 21, and a drive output end of the first parking brake drive circuit 231 is connected with a control end of the first parking brake motor 232.

[0041] For example, the first parking brake drive circuit 231 is integrated on a circuit board where the first brake controller 21 is located, and the first parking brake motor 232 is arranged outside the circuit board and connected with the first parking brake drive circuit 231 in the circuit board through a wire harness.

[0042] Further, in the embodiment, the brake drive module further comprises an electronic brake drive assembly, a brake MPS 237, and a brake solenoid valve assembly.

[0043] Specifically, a control end of the electronic brake driving assembly is connected with the first brake controller 21. The electronic brake driving assembly specifically includes an electronic brake driving circuit 233 and an electronic brake motor 234, and a control end of the electronic brake driving circuit 233 is connected with the first brake controller 21, and a driving output end of the electronic brake driving circuit 233 is connected with a control end of the electronic brake motor 234. The electronic brake driving assembly can be a brake driving assembly in an IBC (Integrated Brake Control) system, or can be a brake driving assembly in an IPB (Integrated Power Brake) system, and the embodiment is not limited in this regard.

[0044] An output end of the brake MPS 237 is connected with the first brake controller 21. The brake MPS 237 is used to acquire a rotor position of the electronic brake motor 234 and feed back to the first brake controller 21.

[0045] Control ends of the brake solenoid valve assembly are all connected with the first brake controller 21. Specifically, the brake solenoid valve assembly includes a solenoid valve driving circuit 235 and a brake solenoid valve 236, and a control end of the solenoid valve driving circuit 235 is connected with the first brake controller 21, and a driving output end of the solenoid valve driving circuit 235 is connected with a control end of the brake solenoid valve 236.

[0046] Exemplarily, the electronic brake driving assembly, the brake MPS 237 and the brake solenoid valve assembly are all integrally arranged on a circuit board where the first brake controller 21 is located.

[0047] In the embodiment, the brake control device 20 can further include a second communication unit 24, one end of the second communication unit 24 is used to be connected with a parking brake switch of the vehicle, and the other end of the second communication unit 24 is connected with the first brake controller 21. Exemplarily, the second communication unit 24 is a CAN module (CAN interface or CAN transceiver). Exemplarily, the second communication unit 24 is integrally arranged on the circuit board where the first brake controller 21 is located, and the second communication unit 24 is connected with the parking brake switch through a CAN bus.

[0048] By redundantly arranging the second communication unit 24, when the user presses the parking brake switch, if the first communication unit communication fails, the first brake controller 21 can acquire the parking brake request of the parking brake switch through the second communication unit 24, so as to realize the redundant control of the parking brake.

[0049] In the embodiment, the brake control device 20 can further include a third communication unit 25, one end of the third communication unit 25 is used to be connected with a brake pedal sensor of the vehicle, and the other end of the third communication unit 25 is connected with the first brake controller 21. Figure 3The third communication unit is connected with the parking brake switch at one end and connected with the second brake controller 25 at the other end, and the second brake controller 25 is also in communication connection with the first brake controller 21. Exemplarily, the third communication unit is a CAN module (CAN interface or CAN transceiver), or the third communication unit can be other devices with CAN communication function. Exemplarily, the third communication unit is integrally arranged on the circuit board where the first brake controller 21 is located, and the third communication unit is connected with the parking brake switch through the CAN bus.

[0050] By redundantly arranging the third communication unit and the second brake controller 25, when the user presses the parking brake switch, if the first communication unit fails to communicate, the first brake controller 21 can obtain the parking brake request of the parking brake switch through the third communication unit and the second brake controller 25, thereby realizing the redundant control of the parking brake.

[0051] Further, the brake driving module can further include a second parking brake driving assembly, and a control end of the second parking brake driving assembly is connected with the second brake controller 25.

[0052] Specifically, the second parking brake driving assembly includes a second parking brake driving circuit 238 and a second parking brake motor 239. A control end of the second parking brake driving circuit 238 is connected with the second brake controller 25, and a driving output end of the second parking brake driving circuit 238 is connected with a control end of the second parking brake motor 239.

[0053] Exemplarily, the second parking brake driving circuit 238 is integrally arranged on the circuit board where the second brake controller 25 is located, and the second parking brake motor 239 is arranged outside the circuit board and connected with the second parking brake driving circuit 238 in the circuit board through a wire harness.

[0054] By redundantly arranging the second parking brake driving assembly, in the case that the first brake controller 21 fails, the parking brake request information of the parking brake switch can be obtained through the second brake controller 25, and the redundant control of the parking brake is realized by using the second brake controller 25.

[0055] In the embodiment, the power supply ends of the brake driving assemblies (such as the first parking brake driving assembly, the second parking brake driving assembly and the electronic brake driving assembly) in the brake driving module and the power supply end of the steering driving assembly in the steering driving module are all used to be connected with the vehicle storage battery. Specifically, the KL30 line of the vehicle is connected with the vehicle storage battery, and the connection with the vehicle storage battery can be realized by connecting with the KL30 line, thereby realizing the power supply through the vehicle storage battery.

[0056] In this way, the steering drive assembly and the brake drive assembly can share the power supply of the vehicle storage battery, and the power supply for the steering drive assembly is not needed, thereby further reducing the hardware cost.

[0057] In this embodiment, the brake control device 20 further comprises a first SBC 26 (System Basis Chip), a power supply end of the first SBC 26 is connected with the vehicle storage battery (specifically, the connection is realized through the connection with the KL30 line), a wake-up end of the first SBC 26 is connected with the ignition switch of the vehicle (specifically, the connection is realized through the connection with the KL15 line of the vehicle), and a voltage output end of the first SBC 26 is connected with the power supply end of the first brake controller 21, the power supply end of each device in the information acquisition module, the power supply end of the brake motor position sensor (i.e., the brake MPS 237) in the brake drive module, and the power supply end of the steering MPS 143 in the steering drive module. When the ignition switch of the vehicle is started, the first SBC 26 is woken up and transforms the voltage of the vehicle storage battery to supply power to the related devices.

[0058] Since the first SBC 26 also has the CAN communication function, the first communication unit can be replaced by the first SBC 26, and the first SBC 26 can not only supply power to the related devices, but also realize the communication function of the first brake controller 21 with the outside world.

[0059] In this embodiment, the brake control device 20 can further comprise a second SBC 27, a power supply end of the second SBC 27 is connected with the vehicle storage battery, a wake-up end of the second SBC 27 is connected with the ignition switch of the vehicle, and a voltage output end of the second SBC 27 is connected with the power supply end of the second brake controller 25 and the power supply end of the third communication unit. When the ignition switch of the vehicle is started, the second SBC 27 is woken up and transforms the voltage of the vehicle storage battery to supply power to the related devices.

[0060] Since the second SBC 27 also has the CAN communication function, the third communication unit can be replaced by the second SBC 27, and the second SBC 27 can not only supply power to the related devices, but also realize the communication function of the second brake controller 25 with the outside world.

[0061] Exemplarily, the first SBC 26 and the second SBC 27 can be integrally arranged on the circuit board where the first brake controller 21 is located.

[0062] In this embodiment, the torque angle sensor 222, the second interface 224, the steering driving circuit 141, the steering motor 142, and the steering MPS 143 are additional steering-related devices, and the remaining devices are devices in the original brake control device. By adding the steering-required devices in the brake control device, the steering control reuses the hardware resources such as the brake controller (specifically, the first brake controller 21), the communication (specifically, the first communication unit), and the power supply (specifically, the KL 30 and the first SBC 26) in the brake control device, without separately setting a steering control device, which can reduce the hardware resource duplication and software development duplication of the brake and the steering, thereby reducing the cost.

[0063] In this embodiment, the steering controller in the steering control device is cancelled, and the first brake controller is used as a computing power carrier, and the steering control of the vehicle is realized through the first brake controller, which can simultaneously control the steering and the brake of the vehicle.

[0064] In addition, in the scheme of separately designing the steering control device and the brake control device, the steering controller in the steering control device and the brake controller in the brake control device need to be communicatively connected for information interaction. In an emergency, such as emergency avoidance, the steering and the brake need to be quickly operated in coordination. If the steering controller and the brake controller are separately designed, the response time may be increased due to communication delay, thereby reducing the safety. In some complex driving scenarios, such as a split road surface or high-speed turning, the steering and the brake need to be accurately coordinated to achieve the best control effect. If the steering controller and the brake controller are separately designed, such fine coordination may not be achieved, thereby affecting the stability and maneuverability of the vehicle. By integrating the steering controller and the brake controller into one controller, in an emergency, the integrated system can quickly implement emergency braking and obstacle avoidance operations, reduce the risk of accidents, and can provide more accurate steering and brake control, improve the control and stability performance of the vehicle. At the same time, it is also convenient for the application of automatic driving technology, and provides support for future autonomous vehicles.

[0065] The application also provides a vehicle, which can include Figure 2 or Figure 3 any brake control device shown.

[0066] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A brake control device characterized by comprising: The brake control device comprises: a first brake controller; an information acquisition module, an output end of the information acquisition module being connected with the first brake controller, for acquiring vehicle information; a brake driving module and a steering driving module, a control end of the brake driving module and a control end of the steering driving module being connected with the first brake controller, respectively for driving the brake and the steering of the vehicle.

2. The brake control device according to claim 1, wherein the steering driving module comprises a steering driving assembly and a steering motor position sensor, the steering driving assembly comprising a steering driving circuit and a steering motor; a control end of the steering driving circuit is connected with the first brake controller, a driving output end of the steering driving circuit is connected with a control end of the steering motor, and the steering motor position sensor is integrated on the steering motor, and an output end of the steering motor position sensor is connected with the first brake controller.

3. The brake control device according to claim 1, characterized by the information acquisition module comprises a first communication unit, a wheel speed sensor and a torque angle sensor; one end of the first communication unit is used for being connected with a controller in a vehicle chassis, and the other end of the first communication unit, an output end of the wheel speed sensor and an output end of the torque angle sensor are all connected with the first brake controller.

4. The brake control device according to claim 1, characterized by power supply ends of each brake driving assembly in the brake driving module and power supply ends of the steering driving assembly in the steering driving module are all used for being connected with a vehicle storage battery; and / or, the brake control device further comprises a first system basic chip, a power supply end of the first system basic chip is used for being connected with the vehicle storage battery, a wake-up end of the first system basic chip is used for being connected with an ignition switch of the vehicle, and a voltage output end of the first system basic chip is used for being connected with a power supply end of the first brake controller, power supply ends of each device in the information acquisition module, power supply ends of the brake motor position sensor in the brake driving module and power supply ends of the steering motor position sensor in the steering driving module.

5. The brake control device according to claim 1, characterized by the brake driving module at least comprises a first parking brake driving assembly, a control end of the first parking brake driving assembly being connected with the first brake controller.

6. The brake control device according to claim 5, wherein the brake driving module further comprises an electronic brake driving assembly and a brake electromagnetic valve assembly, a control end of the electronic brake driving assembly and a control end of the brake electromagnetic valve assembly are both connected with the first brake controller; and / or, the brake control device further comprises a second communication unit, one end of the second communication unit is used for being connected with a parking brake switch of the vehicle, and the other end of the second communication unit is connected with the first brake controller.

7. The brake control device according to claim 5, characterized by the brake control device further comprises a third communication unit and a second brake controller; one end of the third communication unit is used for being connected with the parking brake switch of the vehicle, the other end of the third communication unit is connected with the second brake controller, and the second brake controller is further in communication connection with the first brake controller.

8. The brake control device according to claim 7, characterized by The brake drive module further comprises a second parking brake drive assembly, a control end of the second parking brake drive assembly being connected with the second brake controller.

9. The brake control device according to claim 7, characterized by The third communication unit is a second system base chip with a communication function, a power supply end of the second system base chip is used for being connected with a vehicle storage battery, a wake-up end of the second system base chip is used for being connected with an ignition switch of the vehicle, and a voltage output end of the second system base chip is used for being connected with a power supply end of the second brake controller and a power supply end of the third communication unit.

10. A vehicle characterized by comprising: The vehicle comprises the brake control device according to any one of claims 1 to 9.

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