Brake control device and vehicle

Abstract

A brake control device (20), characterized in that it comprises: a first brake controller (21); an information acquisition module (22); wherein an output end of the information acquisition module (22) is connected to the first brake controller (21) and configured to acquire information from a vehicle; and a brake drive module (23) and a steering drive module (14); wherein a control end of the brake drive module (23) and a control end of the steering drive module (14) are both connected to the first brake controller (21) to drive the braking and steering of the vehicle respectively.

Description

Technical field

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

[0002] Currently, vehicle control systems are typically designed so that steering and braking control are two independent systems. Furthermore, different suppliers may specialize exclusively in either steering or braking control systems, forcing vehicle developers to source these systems separately from different suppliers. This approach of designing steering and braking control systems independently leads to significant duplication of hardware resources and redundant software development, consequently resulting in higher costs. Content of the present application

[0003] The primary technical problem solved by the present application is to provide a brake control device and a vehicle. By integrating a drive module required for steering within the brake control device and reusing the brake controller for steering control, the duplication of hardware resources and redundant software development for both braking and steering can be reduced, thereby lowering costs.

[0004] To solve the aforementioned technical problem, the present application provides the following technical solution: A brake control device comprising: a first brake controller; an information acquisition module; wherein an output end of the information acquisition module is connected to the first brake controller and configured to acquire information from a vehicle; and a brake drive module and a steering drive module; wherein a control end of the brake drive module and a control end of the steering drive module are both connected to the first brake controller to drive the braking and steering of the vehicle respectively.

[0005] In some embodiments, the steering drive module comprises a steering drive component and a steering motor position sensor, and the steering drive component comprises a steering drive circuit and a steering motor; wherein a control end of the steering drive circuit is connected to the first brake controller, and a drive output end of the steering drive circuit is connected to 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 to the first brake controller.

[0006] In some embodiments, the information acquisition module comprises a first communication unit, a wheel speed sensor, and a torque and steering angle sensor; wherein one end of the first communication unit is configured to be connected to controllers in a chassis of the vehicle, and another end of the first communication unit, an output end of the wheel speed sensor, and an output end of the torque and steering angle sensor, are connected to the first brake controller.

[0007] In some embodiments, a power supply end of each brake drive component in the brake drive module and a power supply end of a steering drive component in the steering drive module are all configured to be connected to a vehicle battery; and / or The brake control device further comprises a first system base chip (SBC); a power supply end of the first SBC is configured to be connected to a vehicle battery; a wake-up input of the first SBC is configured to be connected to an ignition switch of the vehicle; a voltage output end of the first SBC is configured to be connected to a power supply end of the first brake controller, power supply ends of various devices in the information acquisition module, a power supply end of a brake motor position sensor in the brake drive module, and a power supply end of a steering motor position sensor in the steering drive module.

[0008] In some embodiments, the brake drive module comprises a first parking brake drive component; a control end of the first parking brake drive component is connected to the first brake controller.

[0009] In some embodiments, the brake drive module further comprises an electronic brake drive component and a brake solenoid valve component; wherein a control end of the electronic brake drive component and a control end of the brake solenoid valve component are 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 another end of the second communication unit is connected to the first brake controller.

[0010] In some embodiments, the brake control device further comprises a third communication unit and a second brake controller; wherein one end of the third communication unit is configured to be connected to a parking brake switch of the vehicle, and another end of the third communication unit is connected to the second brake controller; the second brake controller is furthermore in communication link with the first brake controller.

[0011] In some embodiments, the brake drive module further comprises a second parking brake drive component, and a control end of the second parking brake drive component is connected to the second brake controller.

[0012] In some embodiments, the third communication unit is a second system base chip (SBC) with communication functionality; wherein a power supply end of the second SBC is configured to be connected to a vehicle battery; a wake-up input of the second SBC is configured to be connected to an ignition switch of the vehicle; a voltage output end of the second SBC is configured to supply power to both the second brake controller and the third communication unit.

[0013] To solve the aforementioned technical problems, the present application provides a further technical solution: a vehicle that includes the aforementioned brake control device.

[0014] In summary, the present application provides a brake control device comprising a first brake controller, an information acquisition module, a brake drive module, and a steering drive module. An output end of the information acquisition module is connected to the first brake controller and configured to acquire information from a vehicle. A control end of the brake drive module and a control end of the steering drive module are both connected to the first brake controller to drive the braking and steering of the vehicle, respectively. In the present application, the drive module required for steering is added to the brake control device, and the steering control reuses the brake controller, thus eliminating the need for a separate steering control device and reducing the duplication of hardware resources and the need to redevelop software for braking and steering, thereby lowering costs. Brief description of the drawing Fig. Figure 1 is a structural diagram of a steering control device according to some embodiments of the present application. Fig. Figure 2 is a structural diagram of a brake control device according to some embodiments of the present application. Fig. Figure 3 is a structural diagram of a brake control device according to other embodiments of the present application. Detailed description of the embodiments

[0015] In order to make the objectives, technical solutions, and effects of the present application clearer and more unambiguous, the present application is described in further detail below with reference to the attached drawings and embodiments.

[0016] It should be noted that the term "and / or" in this document merely describes an associative relationship between associated objects and indicates that three relationships are possible. For example, A and / or B can indicate: A exists alone, both A and B exist, or B exists alone. Furthermore, terms such as "first" and "second" in the specification and claims, as well as in the drawings listed above in this document, are intended to distinguish similar objects and do not necessarily describe a particular order or sequence.

[0017] The steering and braking control systems of a vehicle are core components that determine driving safety, handling, and comfort. The steering control system is configured to translate the driver's steering input into steering movement of the wheels, thereby controlling the vehicle's direction of travel. The braking control system is configured to control the deceleration or stopping of the vehicle.

[0018] Currently, each steering control unit and brake control unit is independently equipped with a controller, communication module, power supply module, and other hardware resources. This leads to a duplication of hardware resources, resulting in higher hardware costs and wasted resources. Furthermore, since the controllers of both the steering and brake control units require vehicle-general software (basic software), this necessitates the repeated development of general-purpose software. Therefore, the solution of designing the steering and brake control units independently is costly.

[0019] Referring to Fig. 1 is Fig. 1 A structural diagram of a steering control device according to some embodiments of the present application. As in Fig. As shown in Figure 1, a 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.

[0020] One output end of the angle sensor 11 and one output end of the torque sensor 12 are both connected to the steering controller 13. The angle sensor 11 is configured to detect a steering angle of a steering wheel, and the torque sensor 12 is configured to detect a torque applied to the steering wheel by a driver.

[0021] The steering drive module 14 comprises a steering drive component and a steering motor position sensor (MPS) 143. The steering drive component further comprises a steering drive circuit 141 and a steering motor 142. A control end of the steering drive circuit 141 is connected to the steering controller 13, and a drive output end of the steering drive circuit 141 is connected to a control end of the steering motor 142. The steering drive circuit 141 is configured to drive the steering motor 142. The steering drive circuit 141 further comprises a steering preamplifier sub-circuit and a steering motor drive bridge (e.g., a three-phase inverter bridge consisting of MOSFETs or IGBTs). The steering preamplifier sub-circuit is configured to enhance the current driving capability of the steering controller 13, enabling the steering controller 13 to control the switching of a switching tube in the steering motor drive bridge.The steering MPS 143 is integrated on the steering motor 142, and one output end of the steering MPS 143 is connected to the steering controller 13. The steering MPS 143 is configured to detect the rotor position of the steering motor 142.

[0022] The power supply module 15 comprises a first power supply module 151 and a second power supply module 152. A voltage input end of the first power supply module 151 is configured to be connected to a vehicle battery. A voltage output end of the first power supply module 151 is connected to a power supply end of the steering drive circuit 141. The first power supply module 151 is configured to convert the battery voltage into a suitable and stable voltage to power the steering drive circuit 141. A voltage input end of the second power supply module 152 is connected to the voltage output end of the first power supply module 151. The second power supply module 152 is configured to convert the output voltage of the first power supply module 151 into a suitable and stable voltage (e.g.,5V, 3.3V) to power the steering controller 13 and other sensors in the steering control device 10 (such as the angle sensor 11, the torque sensor 12, and the motor position sensor).

[0023] One end of the communication module 16 is connected to the steering controller 13, and the other end of the communication module 16 is configured to connect to a brake controller in the brake control unit and controllers in the vehicle chassis to enable information interaction between the steering controller 13, the brake controller, and various controllers in the chassis. For example, the communication module 16 is a Controller Area Network (CAN) module.

[0024] The steering controller 13 is configured to receive signals from the angle sensor 11, the torque sensor 12, the steering MPS 143, and the communication module 16, calculate the required motor assistance, and transmit control instructions via digital signals such as SPI or PWM to the steering preamplifier sub-circuit in the steering drive circuit 141. The steering preamplifier circuit is configured to convert the digital signals into analog signals to control the steering motor drive bridge, output three-phase motor power, and ultimately drive the motor to rotate. The steering controller 13 is, by way of example, a microcontroller unit (MCU).

[0025] From the in Fig. As shown in Figure 1 of the steering control device 10, it is evident that if the steering control device 10 is designed separately, a corresponding sensor, controller, communication module, and power supply module must be designed independently of each other in order to achieve the steering control function.

[0026] Referring to Fig. 2 is Fig. 2 A structural diagram of a brake control device according to some embodiments of the present application. As in Fig. As shown in Figure 2, a brake control device 20 comprises a first brake controller 21, an information acquisition module 22, a brake drive module 23, and a steering drive module 14. An output end of the information acquisition module 22 is connected to the first brake controller 21 and configured to acquire vehicle information, such as the vehicle's steering wheel angle, the torque applied to the steering wheel by the driver, wheel speed, etc. A control end of the brake drive module 23 and a control end of the steering drive module 14 are both connected to the first brake controller 21 and configured to drive the braking and steering of the vehicle, respectively. The brake control device 20 is configured to generate control instructions, based on information output by the information acquisition module 22, to control the brake drive module 23 and the steering drive module 14. For illustrative purposes, the brake controller is a microcontroller unit (MCU).

[0027] In these embodiments, the drive module required for steering is added to the brake control device, and the steering control reuses the brake controller, eliminating the need for a separate steering control device and thus reducing the duplication of hardware resources and the need to redevelop software for braking and steering, thereby reducing costs.

[0028] Referring to Fig. 3 is Fig. 3 A structural diagram of a brake control device according to other embodiments of the present application. In these embodiments, the brake control device 20 comprises an information acquisition module, a first brake controller 21, a brake drive module, and a steering drive module (designations for the information acquisition module, the brake drive module, and the steering drive module are defined in Fig. 3 not shown).

[0029] In the embodiments, the information acquisition module comprises in particular a first communication unit (the first communication unit and its designation are defined in Fig. 3 not specifically shown), a wheel speed sensor 221, and a torque and steering angle sensor 222.

[0030] Specifically, one end of the first communication unit is configured to connect to the controllers in the vehicle chassis, and the other end of the first communication unit is connected to the first brake controller 21. For example, the first brake controller 21 can be connected via the first communication unit to external controllers such as a vehicle controller, an intelligent driving controller, and an assistance driving controller to receive information transmitted by the external controllers. The first brake controller 21 can also provide information such as vehicle speed, wheel speed, brake pressure, and ABS / ESC function activation status to the external controllers via the first communication unit.For example, the first communication unit could be a CAN module (CAN interface or CAN transceiver), or the first communication unit could be another device with CAN communication functionality, which is not limited here.

[0031] An output end of the wheel speed sensor (WSS) 221 is connected to the first brake controller 21. Specifically, the output end of the wheel speed sensor 221 is connected to the first brake controller 21 via a first interface 223. For example, the first interface 223 is an AK interface.

[0032] One output end of the torque and steering angle sensor (TAS) 222 is connected to the first brake controller 21. Specifically, the output end of the torque and steering angle sensor 222 is connected to the first brake controller 21 via a second interface 224. For example, the second interface 224 is a Single Edge Nibble Transmission (SENT) interface.

[0033] For example, both the first interface 223 and the second interface 224 can be integrated on a circuit board on which the first brake controller 21 is located. Furthermore, the wheel speed sensor 221 and the torque and steering angle sensor 222 can be connected to the corresponding interfaces via cable harnesses and connectors.

[0034] In the embodiments, the steering drive module comprises, in particular, a steering drive component and a steering MPS 143. The steering drive component further comprises a steering drive circuit 141 and a steering motor 142. A control end of the steering drive circuit 141 is connected to the first brake controller 21, and a drive output end of the steering drive circuit 141 is connected to a control end of the steering motor 142. Relevant components of the steering drive circuit 141 can be found in the [reference to be added]. Fig. The embodiments shown in Figure 1 are not repeated here. The steering MPS 143 is integrated on the steering motor 142, and an output end of the steering MPS 143 is connected to the first brake controller 21 to provide feedback on the rotor position of the steering motor 142 to the first brake controller 21.

[0035] For example, the steering drive circuit 141 is integrated into the steering drive component on the circuit board on which the first brake controller 21 is located, while the steering motor 142 is located outside the circuit board and is connected to the steering drive circuit 141 on the circuit board via a wiring harness. Since the steering motor 142 and brake-related devices are located in different positions in the vehicle, placing the steering motor 142 outside the circuit board facilitates a reduction in the circuit board volume, thereby simplifying the placement of this circuit board in the vehicle.

[0036] In the embodiments, the brake drive module comprises at least one first parking brake drive component, the control end of which is connected to the first brake controller 21. The first parking brake drive component is configured to implement the vehicle's parking brake and emergency braking functions.

[0037] In particular, the first parking brake drive component 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 to the first brake controller 21, and a drive output end of the first parking brake drive circuit 231 is connected to a control end of the first parking brake motor 232.

[0038] For example, the first parking brake drive circuit 231 is integrated on the circuit board on which the first brake controller 21 is located, and the first parking brake motor 232 is located outside the circuit board and is connected to the first parking brake drive circuit 231 on the circuit board via a cable harness.

[0039] Furthermore, in the embodiments, the brake drive module can also include an electronic brake drive component, a brake MPS 237 and a brake solenoid valve component.

[0040] In particular, a control end of the electronic brake drive component is connected to the first brake controller 21. The electronic brake drive component specifically comprises an electronic brake drive circuit 233 and an electronic brake motor 234. A control end of the electronic brake drive circuit 233 is connected to the first brake controller 21, and a drive output end of the electronic brake drive circuit 233 is connected to a control end of the electronic brake motor 234. The electronic brake drive component can be a brake drive component in an Integrated Brake Control (IBC) system or an Integrated Power Brake (IPB) system, which is not limited here.

[0041] One output end of the brake MPS 237 is connected to the first brake controller 21. The brake MPS 237 is configured to detect the rotor position of the electronic brake motor 234 and report it back to the first brake controller 21.

[0042] The control ends of the brake solenoid valve component are all connected to the first brake controller 21. Specifically, the brake solenoid valve component comprises a solenoid valve actuator circuit 235 and a brake solenoid valve 236. A control end of the solenoid valve actuator circuit 235 is connected to the first brake controller 21, and an actuator output end of the solenoid valve actuator circuit 235 is connected to a control end of the brake solenoid valve 236.

[0043] For example, the electronic brake drive component, the brake MPS 237 and the brake solenoid valve component are all integrated on the circuit board on which the first brake controller 21 is located.

[0044] In the embodiments, the brake control device 20 can further comprise a second communication unit 24. One end of the second communication unit 24 is configured to be connected to the vehicle's parking brake switch, and the other end of the second communication unit 24 is connected to the first brake controller 21. By way of example, the second communication unit 24 is a CAN module (CAN interface or CAN transceiver). By way of example, the second communication unit 24 is integrated on the circuit board on which the first brake controller 21 is located, and the second communication unit 24 is connected to the parking brake switch via a CAN bus.

[0045] By redundantly setting up the second communication unit 24, the first brake controller 21 can, in the event of a failure of the first communication unit, receive a parking brake request from the parking brake switch via the second communication unit 24 when the user activates the parking brake switch, thereby achieving redundant control of the parking brake.

[0046] In the embodiments, the brake control device 20 can also include a third communication unit (not in Fig. (3 shown) and a second brake controller 25. One end of the third communication unit is configured to be connected to the vehicle's parking brake switch, and the other end of the third communication unit is connected to the second brake controller 25. The second brake controller 25 is further in communication link with the first brake controller 21. By way of example, the third communication unit is a CAN module (CAN interface or CAN transceiver), or the third communication unit can be another device with CAN communication functionality. By way of example, the third communication unit is integrated on the circuit board on which the first brake controller 21 is located, and the third communication unit is connected to the parking brake switch via a CAN bus.

[0047] By redundantly setting up the third communication unit and the second brake controller 25, the first brake controller 21 can, in the event of a failure of the first communication unit, receive the parking brake request from the parking brake switch via the third communication unit and the second brake controller 25 when the user activates the parking brake switch, thus achieving redundant control of the parking brake.

[0048] Furthermore, the brake drive module can also include a second parking brake drive component, the control end of which is connected to the second brake controller 25.

[0049] In particular, the second parking brake drive component comprises a second parking brake drive circuit 238 and a second parking brake motor 239. A control end of the second parking brake drive circuit 238 is connected to the second brake controller 25, and a drive output end of the second parking brake drive circuit 238 is connected to a control end of the second parking brake motor 239.

[0050] For example, the second parking brake drive circuit 238 is integrated on the circuit board on which the second brake controller 25 is located, and the second parking brake motor 239 is located outside the circuit board and is connected to the second parking brake drive circuit 238 on the circuit board via a cable harness.

[0051] By redundantly setting up the second parking brake drive component, the second brake controller 25 can receive the brake request information from the parking brake switch in the event of a failure of the first brake controller 21, and the second brake controller 25 can achieve redundant control of the parking brake.

[0052] In the embodiments, a power supply end of each brake drive component in the brake drive module (such as the first parking brake drive component, the second parking brake drive component, and the electronic brake drive component) and a power supply end of the steering drive component in the steering drive module are all configured to be connected to the vehicle battery. Specifically, the vehicle's KL30 line is connected to the vehicle battery. A connection to the vehicle battery can be achieved by connecting to the KL30 line, thereby enabling power supply from the vehicle battery.

[0053] This method allows the steering drive component and the brake drive component to share the vehicle battery's power supply, eliminating the need for a separate power supply for the steering drive component and thus further reducing hardware costs.

[0054] In the embodiments, the brake control device 20 may further comprise a first system base chip (SBC) 26. A power supply end of the first SBC 26 is configured to be connected to the vehicle battery (in particular by connection to the KL30 line). A wake-up input of the first SBC 26 is configured to be connected to the vehicle's ignition switch (in particular by connection to the vehicle's KL15 line). A voltage output end of the first SBC 26 is configured to be connected to the power supply end of the first brake controller 21, the power supply ends of various devices 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 vehicle's ignition switch is turned on, the first SBC 26 is awakened and converts the voltage of the vehicle battery to power the appropriate devices.

[0055] Since the first SBC 26 also possesses CAN communication functionality, the first communication unit can be replaced by the first SBC 26. This means that the first SBC 26 can both supply power to the various corresponding devices and enable communication between the first brake controller 21 and the outside world.

[0056] In the embodiments, the brake control device 20 may further comprise a second SBC 27. A power supply end of the second SBC 27 is configured to be connected to the vehicle battery. A wake-up input of the second SBC 27 is configured to be connected to the vehicle's ignition switch. A voltage output end of the second SBC 27 is configured to be connected to the power supply end of the second brake controller 25 and the power supply end of the third communication unit. When the vehicle's ignition switch is turned on, the second SBC 27 wakes up and converts the voltage of the vehicle battery to power the corresponding devices.

[0057] Since the second SBC 27 also possesses CAN communication functionality, the third communication unit can be replaced by the second SBC 27. This means that the second SBC 27 can both supply power to the various corresponding devices and enable communication between the second brake controller 25 and the outside world.

[0058] For example, the first SBC 26 and the second SBC 27 can both be integrated on the circuit board on which the first brake controller 21 is located.

[0059] In the embodiments, the torque and steering angle sensor 222, the second interface 224, the steering drive circuit 141, the steering motor 142, and the steering MPS 143 are additional steering-related devices. The remaining devices are all devices originally present in the brake control device. By adding the devices required for steering to the brake control device, the steering control reuses hardware resources such as the brake controller (in particular the first brake controller 21), communication (in particular the first communication unit), and power supply (in particular KL30 and the first SBC 26) within the brake control device. This eliminates the need for a separate steering control device, which can reduce the duplication of hardware resources and the need to redevelop software for braking and steering, thereby lowering costs.

[0060] In these embodiments, the steering controller is eliminated from the steering control device, and the first brake controller serves as the computing power unit. In this way, the first brake controller implements the vehicle steering control and can simultaneously control the steering and braking of the vehicle.

[0061] Furthermore, a solution where the steering and brake control units are designed separately and independently requires that the steering controller within the steering unit and the brake controller within the brake unit be connected for communication and information exchange. In emergencies, such as emergency evasive maneuvers, rapid, coordinated steering and braking actions are essential. If the steering actuator and brake controller are designed separately, the reaction time can increase due to communication delays, compromising safety. In certain complex driving situations, such as on roads prone to skidding or during high-speed cornering, precise coordination of steering and braking forces is necessary to achieve optimal handling.If the steering actuator and brake controller are designed separately, this fine-tuning may not be achievable, which will affect vehicle stability and handling. By integrating the steering and brake controllers into a single controller, the integrated system can execute emergency braking and obstacle avoidance maneuvers more quickly in emergencies, thereby reducing the risk of accidents. Furthermore, it enables more precise steering and braking control, thus improving vehicle handling and stability performance. It also facilitates the application of autonomous driving technologies, thereby supporting the development of future autonomous vehicles.

[0062] The present application also concerns a vehicle that is described in Fig. 2 or Fig. The brake control device shown in section 3 may include.

[0063] The above is merely an implementation of the present application and therefore does not limit its scope. Any equivalent structure or process transformation carried out using the contents of the specification and drawings of the present application, or applied directly or indirectly in other related technical fields, is also included within the scope of the present application.

Claims

[1] A brake control device (20), characterized by , that it includes: a first brake controller (21); an information acquisition module (22); wherein an output end of the information acquisition module (22) is connected to the first brake controller (21) and configured to acquire information from a vehicle; and a brake drive module (23) and a steering drive module (14); wherein a control end of the brake drive module (23) and a control end of the steering drive module (14) are both connected to the first brake controller (21) to drive the braking and steering of the vehicle respectively. [2] Brake control device (20) according to claim 1, wherein the steering drive module (14) comprises a steering drive component and a steering motor position sensor (143), and the steering drive component comprises a steering drive circuit (141) and a steering motor (142); a control end of the steering drive circuit (141) is connected to the first brake controller (21), and a drive output end of the steering drive circuit (141) is connected to a control end of the steering motor (142); the steering motor position sensor (143) is integrated on the steering motor (142), and an output end of the steering motor position sensor (143) is connected to the first brake controller (21). [3] Brake control device (20) according to claim 1, wherein the information acquisition module (22) comprises a first communication unit, a wheel speed sensor (221), and a torque and steering angle sensor (222); one end of the first communication unit is configured to be connected to controllers in a chassis of the vehicle, and another end of the first communication unit, an output end of the wheel speed sensor (221), and an output end of the torque and steering angle sensor (222) are connected to the first brake controller (21). [4] Brake control device (20) according to claim 1, wherein a power supply end of each brake drive component in the brake drive module (23) and a power supply end of a steering drive component in the steering drive module (14) are all configured to be connected to a vehicle battery; and / or the brake control device (20) further comprises a first system base chip (SBC) (26); a power supply end of the first SBC (26) is configured to be connected to a vehicle battery; a wake-up input of the first SBC (26) is configured to be connected to an ignition switch of the vehicle;a voltage output end of the first SBC (26) is configured to be connected to a power supply end of the first brake controller (21), power supply ends of various devices in the information acquisition module (22), a power supply end of a brake motor position sensor (237) in the brake drive module (23), and a power supply end of a steering motor position sensor (143) in the steering drive module (14). [5] Brake control device (20) according to claim 1, wherein the brake drive module (23) comprises a first parking brake drive component; a control end of the first parking brake drive component is connected to the first brake controller (21). [6] Brake control device (20) according to claim 5, wherein the brake drive module (23) further comprises an electronic brake drive component and a brake solenoid valve component; a control end of the electronic brake drive component and a control end of the brake solenoid valve component are connected to the first brake controller (21); and / or the brake control device (20) further comprises a second communication unit (24); one end of the second communication unit (24) is configured to be connected to a parking brake switch of the vehicle, and another end of the second communication unit (24) is connected to the first brake controller (21). [7] Brake control device (20) according to claim 5, wherein the brake control device (20) further comprises a third communication unit and a second brake controller (25); one end of the third communication unit is configured to be connected to a parking brake switch of the vehicle, and another end of the third communication unit is connected to the second brake controller (25); the second brake controller (25) is further in communication connection with the first brake controller (21). [8] Brake control device (20) according to claim 7, wherein the brake drive module (23) further comprises a second parking brake drive component, and a control end of the second parking brake drive component is connected to the second brake controller (25). [9] Brake control device (20) according to claim 7, wherein the third communication unit is a second system base chip (SBC) (27) with communication functionality; a power supply end of the second SBC (27) is configured to be connected to a vehicle battery; a wake-up input of the second SBC (27) is configured to be connected to an ignition switch of the vehicle; a voltage output end of the second SBC (27) is configured to supply power to both the second brake controller (25) and the third communication unit. [10] A vehicle comprising the brake control device (20) according to any one of claims 1-9.

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