Brake system and vehicle

Abstract

The invention provides a braking system and a vehicle, the system is applied to the technical field of vehicles, the system comprises a first braking assembly, a second braking assembly and a first power supply assembly for supplying power to the first braking assembly and the second braking assembly, and the first braking assembly comprises a first braking controller connected with the first power supply assembly and a second braking controller connected with the second braking assembly; the braking module is used for generating first braking force and second braking force according to a received braking demand; the first brake unit is connected with the first brake controller; the second brake unit is connected with the first brake controller; the second braking assembly comprises a second braking controller, a first power supply assembly and a second braking assembly, wherein the second braking controller is connected with the first power supply assembly and used for generating third braking force and fourth braking force according to the received braking requirement; the third brake unit is connected with the second brake controller; and the fourth brake unit is connected with the second brake controller. According to the system, independent control over four wheels can be achieved, and power supply of the vehicle can be guaranteed while power redundancy can be effectively reduced through the arrangement mode of the power supply assemblies.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more particularly, to a brake system and a vehicle in the field of vehicle technology. Background Art

[0002] The braking system of a vehicle refers to a series of specialized devices that apply a certain force to certain parts of the car (mainly the wheels), thereby forcing them to brake to a certain extent.

[0003] In the related technologies, the braking system of vehicles uses hydraulic pipelines as the medium, and the layout adopts X-type or II-type overall control. The braking control for each wheel can only be achieved through ESP (Electronic Stability Program) or IBC (Integrated Brake Control). However, these solutions have poor control accuracy, cannot control a single wheel for a long time, and have NVH (Noise, Vibration, Harshness) and other problems during control.

[0004] In terms of vehicle power supply, currently in the industry, autonomous driving below L3 does not require redundant power supply, while autonomous driving above L3 requires each controller to be connected to a power supply. However, this may lead to an increase in vehicle costs due to power supply redundancy.

[0005] In summary, there is currently a lack of a vehicle braking system with a simple structure and high control accuracy, which needs to be urgently resolved. Summary of the invention

[0006] The present application provides a braking system and a vehicle, wherein the system can realize independent control of four wheels, and the arrangement of the power supply components thereof can effectively reduce power redundancy while ensuring the power supply of the vehicle.

[0007] In a first aspect, a braking system is provided, the system comprising: a first braking assembly, a second braking assembly, and a first power supply assembly for supplying power to the first braking assembly and the second braking assembly, wherein:

[0008] The first brake assembly comprises:

[0009] a first brake controller, the first brake controller is connected to the first power supply component, and the first brake controller generates a first braking force and a second braking force according to a received braking demand;

[0010] a first braking unit, the first braking unit being connected to the first braking controller, and the first braking unit performing braking according to the first braking force;

[0011] a second braking unit, the second braking unit being connected to the first braking controller, and the second braking unit performing braking according to the second braking force;

[0012] The second brake assembly comprises:

[0013] a second brake controller, the second brake controller being connected to the first power supply component, and the second brake controller generating a third braking force and a fourth braking force according to the received braking demand;

[0014] a third braking unit, the third braking unit being connected to the second braking controller, and the third braking unit performing braking according to the third braking force;

[0015] A fourth braking unit, wherein the fourth braking unit is connected to the second braking controller, and the fourth braking unit brakes according to the fourth braking force.

[0016] Through the above technical solution, since the vehicle in the embodiment of the present application is configured with two controllers, the first brake controller controls the first brake unit and the second brake unit, and the second brake controller controls the third brake unit and the fourth brake unit, that is, the braking demand of the vehicle is received by the brake controller, and the designated brake component is controlled to generate the corresponding braking force, so as to realize precise control of the vehicle's brake components.

[0017] In combination with the first aspect, in some possible implementations, the first brake unit to the fourth brake unit all include: a brake motor, a reduction mechanism, a transmission mechanism and a caliper, wherein the brake motor is connected to one end of the reduction mechanism, the other end of the reduction mechanism is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the caliper; when the braking demand is received, the brake motor rotates to drive the reduction mechanism to rotate, and after the reduction mechanism reduces the speed of the brake motor, it drives the transmission mechanism to push the caliper to complete the braking action.

[0018] Through the above technical solution, the brake unit of the present application can be used in conjunction with the deceleration mechanism, transmission mechanism and caliper through the brake motor. According to the driving needs issued by the driver, the brake motor is controlled to drive the caliper to complete the corresponding operation, thereby realizing precise control of the vehicle's brake components.

[0019] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the reduction mechanism is a planetary gear mechanism; the caliper includes a caliper body, a caliper frame and a friction plate; the transmission mechanism includes a ball screw and an end cover, and the ball screw is used to convert the rotational motion of the reduction mechanism into linear motion in a preset direction, and push the friction plate to move through the end cover.

[0020] Through the above technical solution, the present application can output high-precision braking force through the deceleration mechanism, the transmission mechanism and the caliper to achieve smooth operation of vehicle braking;

[0021] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the braking system further includes: a detection component for detecting whether the first power supply component is in a fault state, and the detection component is connected to the first power supply component.

[0022] Through the above technical solution, since the braking system of the present application is configured with a detection component, which is connected to the first power supply component and is used to detect the status of the first power supply component, the present application can realize real-time detection of the vehicle power supply component to ensure the safety of the entire vehicle system.

[0023] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the braking system also includes: a second power supply component, which is respectively connected to the detection component, the first brake controller and the second brake controller, and when the detection component detects that the first power supply component is in the fault state, the second power supply component supplies power to the first brake component and the second brake component.

[0024] Through the above technical solution, since the braking system of the present application is equipped with a second power supply component, the second power supply component is connected to the detection component. When the detection component detects that the first power supply component fails and cannot supply power to the vehicle component, the second power supply component supplies power to the component. Therefore, the power supply control form of the present application can ensure that after one power supply fails, the other power supply can still ensure the operation of the vehicle controller and meet the braking performance.

[0025] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the braking system also includes: an alarm component, which is connected to the detection component, and the alarm component performs an acoustic alarm reminder and / or a visual alarm reminder when the detection component detects that the first power supply component or the second power supply component is in the fault state.

[0026] Through the above technical solution, since the braking system of the present application is equipped with an alarm component, when the detection component detects a fault in the vehicle power supply component, an alarm is sounded acoustically or optically, thereby promptly notifying the driver of the vehicle power supply component fault information, so that the faulty component can be repaired, greatly improving the safety of vehicle driving.

[0027] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the alarm component includes: an acoustic alarm unit, which performs an acoustic alarm reminder when the first power supply component or the second power supply component is in the fault state; and / or, an optical alarm unit, which performs an optical alarm reminder when the first power supply component or the second power supply component is in the fault state.

[0028] Through the above technical scheme, an acoustic alarm unit can be set in the alarm component of the embodiment of the present application, and sound reminders such as horns and prompt sounds are issued when the first power supply component or the second power supply component is in a fault state; or an optical alarm unit can be set in the alarm component, and in a fault state, fault prompt information is issued on devices such as a vehicle display screen; or both the acoustic alarm unit and the optical alarm unit are set in the alarm component, and in a fault state, alarm information is issued at the same time to remind the driver that the vehicle power supply has a fault, to promptly identify the cause of the fault, and to ensure the operation of the entire vehicle system.

[0029] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the braking system further includes: an acquisition component, which is connected to the detection component, and when the detection component detects that the first power supply component or the second power supply component is in the fault state, the acquisition component acquires the vehicle identification code of the vehicle and the power supply number and fault log of the first power supply component or the second power supply component; a communication component, which is connected to the acquisition component, and the communication component sends the vehicle identification code, the power supply number and the fault log to a preset analysis terminal.

[0030] Through the above technical solution, since the braking system of the present application is equipped with an acquisition component, when the vehicle power supply component fails, the vehicle identification code, the number of the fault power supply, the fault log and other information are received, and the communication component of the system provided by the present application is sent to the terminal, and then the terminal analyzes the cause of the fault. In addition, the driver can also receive feedback on the fault information, thereby further ensuring the safety of the vehicle.

[0031] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the braking system further includes: a display component, wherein the display component is connected to the acquisition component, and the display component displays the power supply number and the fault log.

[0032] Through the above technical solution, the present application can push information such as the number of the faulty power supply and the fault log to the vehicle-mounted display device through the display component so that the driver and maintenance personnel can view and repair it.

[0033] In a second aspect, a vehicle is provided, comprising the braking system according to the first aspect or any possible implementation of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a structural schematic diagram of a braking system of a specific embodiment of the present application;

[0035] Figure 2 is a schematic diagram of a braking system provided in an embodiment of the present application;

[0036] Figure 3 is a schematic diagram of a brake unit according to a specific embodiment of the present application;

[0037] Figure 4 is a schematic diagram of the components of a braking system of a specific embodiment of the present application;

[0038] Figure 5 It is a schematic diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0040] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0041] Traditional vehicle braking systems use hydraulic pipelines as the medium, and the layout adopts X-type or II-type overall control. Braking control for each wheel can only be achieved through ESP or IBC. These solutions have poor control accuracy, cannot control a single wheel for a long time, and have NVH and other problems during control. Therefore, it is impossible to achieve precise control of the wheels, which reduces the driver's driving experience.

[0042] In terms of vehicle power supply, currently in the industry, autonomous driving below L3 does not require redundant power supply, while autonomous driving above L3 requires each controller to be connected to a power supply. However, this may lead to an increase in vehicle costs due to power supply redundancy.

[0043] Therefore, in order to solve the above problems, this application proposes a braking system that can realize independent control of four wheels, reduce turning radius related functions such as tank steering, and realize steering redundancy and other functions. In terms of the power supply system, this application can realize the redundant design of braking force after power failure to ensure the power supply of the vehicle.

[0044] Next, the application scenario and system architecture of the embodiment of the present application will be described. Figure 1 , Figure 1 This is a schematic diagram of the structure of the braking system of an embodiment of the present application.

[0045] like Figure 1 As shown, the braking system of the embodiment of the present application includes a front controller and a rear controller. The front controller can control the right front wheel and the left front wheel, and the rear controller can control the right rear wheel and the left rear wheel. Battery 1 and battery 2 can provide power for the front controller, the right front wheel, the left front wheel, the rear controller, the right rear wheel and the left rear wheel.

[0046] In general, the application scenarios of the braking system of the present application include: four-wheel independent control or four-wheel overall control and control of a braking system with an X-shaped power distribution. The system has a simple structure and does not require the use of numerous hydraulic valve bodies for circuit control. Since it can achieve complete independent control of the four wheels, the driver can adjust the control accuracy, control size and control time according to needs. In addition, by arranging the power supply in an X-shaped manner, the braking performance requirements can be met while meeting the power redundancy requirements.

[0047] Therefore, the present application can realize independent / integrated control of four wheels through the braking system, and the arrangement of the two batteries in its power supply system can effectively reduce power redundancy while ensuring the power consumption of the entire vehicle system. The following examples are listed in conjunction with the accompanying drawings to specifically introduce the structure of the braking system of the present application and its implementation principle.

[0048] Figure 2 It is a schematic diagram of a braking system provided in an embodiment of the present application.

[0049] For example, Figure 2 As shown, the brake system 10 includes: a first brake assembly 100 , a second brake assembly 200 and a first power supply assembly 300 , and the first power supply assembly 300 supplies power to the first brake assembly 100 and the second brake assembly 200 .

[0050] Specifically, the first brake assembly 100 includes: a first brake controller 101, a first brake unit 102, and a second brake unit 103. The first brake controller 101 is connected to the first power supply assembly 300, and the first brake controller 101 generates a first braking force and a second braking force according to the received braking demand; the first brake unit 102 is connected to the first brake controller 101, and the first brake unit 102 brakes according to the first braking force; the second brake unit 103 is connected to the first brake controller 101, and the second brake unit 103 brakes according to the second braking force;

[0051] The second brake assembly 200 includes: a second brake controller 201, a third brake unit 202 and a fourth brake unit 203. The second brake controller 201 is connected to the first power supply assembly 300, and the second brake controller 201 generates a third braking force and a fourth braking force according to the received braking demand; the third brake unit 202 is connected to the second brake controller 201, and the third brake unit 202 brakes according to the third braking force; the fourth brake unit 203 is connected to the second brake controller 201, and the fourth brake unit 203 brakes according to the fourth braking force.

[0052] Specifically, the first brake controller 101 and the second brake controller 201 of the embodiment of the present application can both be EMB (Electro Mechanical Brake, electronic mechanical brake system) controllers. The first brake controller 101 in the first brake assembly 100 of the embodiment of the present application corresponds to Figure 1 The front controller in the structure diagram corresponds to the second brake controller 201 in the second brake assembly 200. Figure 1 The rear controller in the structural diagram, the brake controller in the embodiment of the present application can generate braking force according to the received braking demand, and then control the caliper motors of the four wheels.

[0053] It should be noted that, combined with Figure 1 and Figure 2 As shown, the chassis structure of the vehicle in the embodiment of the present application mainly includes four EMB actuators, which correspond to the first brake unit 102 to the fourth brake unit 203 of the embodiment of the present application respectively, and can independently control the four wheels; EMB is an actuator driven by a caliper motor and installed on the caliper of the brake mechanism. It is a device that directly brakes the vehicle with the brake mechanism without the need for a medium such as brake fluid; EMB replaces the traditional hydraulic brake and is used for main braking, and its scope of use is expanded.

[0054] Further, Figure 3 This is a schematic diagram of a brake unit according to a specific embodiment of the present application. Figure 3 , the braking unit of the embodiment of the present application is specifically described.

[0055] Optionally, in some embodiments, the first brake unit 102 to the fourth brake unit 203 all include: a brake motor, a reduction mechanism, a transmission mechanism and a caliper, wherein the brake motor is connected to one end of the reduction mechanism, the other end of the reduction mechanism is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the caliper; when a braking demand is received, the brake motor rotates to drive the reduction mechanism to rotate, and after the reduction mechanism reduces the speed of the brake motor, it drives the transmission mechanism to push the caliper to complete the braking action.

[0056] Optionally, in some embodiments, the reduction mechanism is a planetary gear mechanism; the caliper includes a caliper body, a caliper frame and a friction plate; the transmission mechanism includes a ball screw and an end cover, and the ball screw is used to convert the rotational motion of the reduction mechanism into linear motion in a preset direction, and push the friction plate to move through the end cover.

[0057] In the actual implementation process, the brake motor is connected to the planetary gear mechanism through the clutch power, and the brake pedal is connected to the brake motor through the transmission mechanism. When the brake pedal is stepped on, the brake motor acts on the caliper through the transmission mechanism, and the caliper clamps the wheel to slow down or stop the vehicle. The transmission mechanism of the embodiment of the present application includes a ball screw and an end cover, and the ball screw can realize the clamping of the caliper to stop the vehicle.

[0058] The reduction mechanism of the embodiment of the present application is a planetary gear mechanism, and the planetary gears are connected to the ball screw. When the planetary gear mechanism rotates, the ball screw will also rotate, thereby converting the rotational motion of the reduction mechanism into linear motion in a preset direction, pushing the friction plate to move through the end cover, and responding to the driver's braking needs.

[0059] The braking system 10 of the present application is equipped with caliper motors (brake units) on all four wheels. Therefore, the four-wheel caliper motors can be controlled by the first brake controller and the second brake controller, thereby achieving overall control of the four wheels or independent control of the four wheels. In other words, the braking system 10 can independently control one wheel, two wheels, three wheels, and various control combinations, thereby achieving precise control of the four wheels.

[0060] In addition, since the present application realizes the combined / independent control of the four wheels, the driver can adjust the control accuracy, control size, and control time according to needs during driving. For example, the driver can define drift modes according to different scenarios, thereby improving the control accuracy and achieving long-term control of a single wheel, and effectively reducing NVH problems, greatly improving the driver's driving control experience.

[0061] Optionally, the first power supply component 300 of the embodiment of the present application may be Figure 1The battery 1 is used to power the first brake assembly 100 and the second brake assembly 200 of the embodiment of the present application to meet the braking performance.

[0062] It is understandable that during long-term use, the power supply components of the vehicle may experience battery aging, internal short circuit and other faults, which may affect the power consumption of the vehicle braking system, thereby causing paralysis of the entire vehicle system, causing inconvenience and safety hazards to the driver. Therefore, this application proposes the following from the aspects of the layout of the power supply structure and the detection of the power supply status: Figure 4 The braking system shown below will be combined with Figure 4 , and introduces the composition of the system in detail.

[0063] Optionally, in some embodiments, Figure 4 As shown, the braking system 10 further includes: a detection component 500 for detecting whether the first power supply component 300 is in a fault state, and the detection component 500 is connected to the first power supply component 300 .

[0064] It is understandable that when the vehicle is driving or powered on, the power supply may short-circuit, lose power or other faults for some reason, which greatly affects the safety performance of the vehicle. Therefore, the braking system of the present application is provided with a detection component 500, which is connected to the vehicle's power supply system, i.e., the first power supply component 300, to monitor the operating status of the first power supply component 300 in real time.

[0065] Optionally, in some embodiments, Figure 4 As shown, the braking system 10 also includes: a second power supply component 400, which is respectively connected to the detection component 500, the first brake controller 101 and the second brake controller 201. When the detection component 500 detects that the first power supply component 300 is in a fault state, the second power supply component 400 supplies power to the first brake component 100 and the second brake component 200.

[0066] It should be noted that the braking system 10 of the embodiment of the present application is equipped with two power supply components, and the second power supply component 400 can be Figure 1 Based on the above embodiments, it can be understood that if Figure 4 As shown, the detection component 500 monitors the operating status of the first power supply component 300 and the second power supply component 400 in real time. Once one of the power supply components has a short circuit, power failure or other faults, causing the first power supply component 300 or the second power supply component 400 to fail, the other power supply component that has not failed can still ensure the operation of the entire braking system and meet the braking needs of the vehicle.

[0067] For example, Figure 4As shown, the second power supply component 400 is connected to the first brake controller 101 and the second brake controller 201. Therefore, after the first power supply component 300 fails, the first brake controller 101 and the second brake controller 201 can continue to operate, that is, the front controller and the rear controller can work.

[0068] Optionally, in some embodiments, Figure 4 As shown, the braking system 10 also includes: an alarm component 600, which is connected to the detection component 500. The alarm component 600 performs an acoustic alarm and / or an optical alarm when the detection component 500 detects that the first power supply component 300 or the second power supply component 400 is in a fault state.

[0069] It is understandable that if Figure 4 As shown, since the first power supply assembly 300 and the second power supply assembly 400 supply power to the first brake assembly 100 and the second brake assembly 200, when the first power supply assembly 300 or the second power supply assembly 400 fails, it is very likely to affect the operation of the entire vehicle system and pose a threat to the driver's life and property. Therefore, the braking system 10 of the present application is provided with an alarm assembly 600, which is connected to the detection assembly 500 for detecting the state of the power supply assembly. When the detection assembly 500 detects that the first power supply assembly 300 or the second power supply assembly 400 fails, an alarm reminder is issued to remind the driver to repair the faulty power supply to avoid accidents.

[0070] Optionally, in some embodiments, Figure 4 As shown, the alarm component 600 includes: an acoustic alarm unit, which performs an acoustic alarm reminder when the first power supply component 300 or the second power supply component 400 is in a fault state; and / or an optical alarm unit, which performs an optical alarm reminder when the first power supply component 300 or the second power supply component 400 is in a fault state.

[0071] The alarm component 600 of the embodiment of the present application may include an acoustic alarm unit or an optical alarm unit, or both the acoustic alarm unit and the optical alarm unit may be arranged in the alarm component 600 .

[0072] In addition, the acoustic alarm unit of the embodiment of the present application may be a vehicle-mounted audio system, which sounds a whistle when the first power supply component 300 or the second power supply component 400 is in a faulty state to remind the driver that the power supply component is faulty; the optical alarm unit of the embodiment of the present application may be an LED indicator light, which lights up when the detection component 500 detects that the first power supply component 300 or the second power supply component 400 is in a faulty state to remind the driver that the first power supply component 300 or the second power supply component 400 of the vehicle is faulty so that the driver can repair it in time. This application does not make specific restrictions on the alarm reminder method of the alarm component 600, and those skilled in the art can set it according to actual needs.

[0073] Optionally, in some embodiments, Figure 4 As shown, the braking system 10 further includes: an acquisition component 700 and a communication component 800 .

[0074] Among them, the acquisition component 700 is connected to the detection component 500. When the detection component 500 detects that the first power supply component 300 or the second power supply component 400 is in a fault state, the acquisition component 700 acquires the vehicle identification code of the vehicle and the power supply number and fault log of the first power supply component 300 or the second power supply component 400; the communication component 800 is connected to the acquisition component 700, and the communication component 800 sends the vehicle identification code, power supply number and fault log to the preset analysis terminal.

[0075] Furthermore, in order to analyze the cause of failure of the power supply components and improve the safety performance of the vehicle, the present application configures a related acquisition component 700 in the braking system 10, which is connected to the detection component 500. When any of the power supply components fails, the detection component 500 will transmit the fault log generated by the power supply number of the failed power supply component and the fault cause, fault time, etc. to the acquisition component 700, so as to realize real-time tracking of the failed first power supply component 300 and the second power supply component 400 and timely repair.

[0076] Further, based on the above embodiment, it can be understood that the acquisition component 700 needs to transmit the power supply number and the fault log to the terminal for fault analysis. Therefore, the brake system 10 of the present application is provided with a communication component 800, which can be Figure 1 The private CAN (Controller Area Network) network in the system is used to transmit the power supply number and fault log to the terminal.

[0077] In addition, the preset analysis terminal in the embodiment of the present application can be a cloud terminal device, a computer, or other device used for analysis and processing, which is not specifically limited here.

[0078] Optionally, in some embodiments, Figure 4 As shown, the braking system 10 further includes: a display component 900, which is connected to the acquisition component 700, and the display component 900 displays the power supply number and the fault log.

[0079] Specifically, the present application can push information such as the number of the faulty power supply and the fault log to the vehicle-mounted display device through the display component 900 so that the driver and maintenance personnel can view and repair it.

[0080] In summary, the braking system provided by the present application supplies power to the first brake assembly and the second brake assembly through the first power supply assembly and / or the second power supply assembly 400. When the detection assembly detects a failure in the first power supply assembly, the second power supply assembly is controlled to supply power to the brake assembly. The first brake assembly and the second brake assembly are respectively configured with a brake controller to generate a braking force according to the received braking demand. The multiple brake assemblies are configured with caliper motors, and the brake assemblies are independently controlled or combinedly controlled through the brake controller. The braking system can achieve independent control of the four wheels, and the arrangement of its power supply assembly can effectively reduce the power supply while ensuring the power supply of the vehicle.

[0081] Figure 5 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application.

[0082] It should be understood that the braking system 10 described above can be applied to Figure 5 In the vehicle 20 of the structure shown.

[0083] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A braking system, characterized in that: include: A first brake assembly, a second brake assembly and a first power supply assembly for supplying power to the first brake assembly and the second brake assembly, wherein: The first brake assembly comprises: a first brake controller, the first brake controller is connected to the first power supply component, and the first brake controller generates a first braking force and a second braking force according to a received braking demand; a first braking unit, the first braking unit being connected to the first braking controller, and the first braking unit performing braking according to the first braking force; a second braking unit, the second braking unit being connected to the first braking controller, and the second braking unit performing braking according to the second braking force; The second brake assembly comprises: a second brake controller, the second brake controller being connected to the first power supply component, and the second brake controller generating a third braking force and a fourth braking force according to the received braking demand; a third braking unit, the third braking unit being connected to the second braking controller, and the third braking unit performing braking according to the third braking force; A fourth braking unit, wherein the fourth braking unit is connected to the second braking controller, and the fourth braking unit brakes according to the fourth braking force.

2. The braking system according to claim 1, characterized in that: The first brake unit to the fourth brake unit each include: Brake motor, reduction mechanism, transmission mechanism and caliper, wherein: The brake motor is connected to one end of the reduction mechanism, the other end of the reduction mechanism is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the caliper; When the braking demand is received, the brake motor rotates to drive the reduction mechanism to rotate. After the reduction mechanism reduces the rotation speed of the brake motor, it drives the transmission mechanism to push the caliper to complete the braking action.

3. The braking system according to claim 2, characterized in that: The speed reduction mechanism is a planetary gear mechanism; The caliper comprises a caliper body, a caliper frame and a friction plate; The transmission mechanism includes a ball screw and an end cover. The ball screw is used to convert the rotational motion of the reduction mechanism into a linear motion in a preset direction and to push the friction plate to move through the end cover.

4. The braking system according to any one of claims 1 to 3, characterized in that: Also includes: A detection component for detecting whether the first power supply component is in a fault state, wherein the detection component is connected to the first power supply component.

5. The braking system according to claim 4, characterized in that: Also includes: A second power supply component, wherein the second power supply component is respectively connected to the detection component, the first brake controller and the second brake controller, and when the detection component detects that the first power supply component is in the fault state, the second power supply component supplies power to the first brake component and the second brake component.

6. The braking system according to claim 5, characterized in that: Also includes: An alarm component is connected to the detection component, and the alarm component performs an acoustic alarm reminder and / or a visual alarm reminder when the detection component detects that the first power supply component or the second power supply component is in the fault state.

7. The braking system according to claim 6, characterized in that: The alarm component comprises: An acoustic alarm unit, which performs an acoustic alarm reminder when the first power supply component or the second power supply component is in the fault state; And / or, an optical alarm unit, which performs an optical alarm reminder when the first power supply component or the second power supply component is in the fault state.

8. The braking system according to claim 7, characterized in that: Also includes: an acquisition component, the acquisition component being connected to the detection component, and when the detection component detects that the first power supply component or the second power supply component is in the fault state, the acquisition component acquires the vehicle identification code of the vehicle and the power supply number and fault log of the first power supply component or the second power supply component; A communication component is connected to the acquisition component, and the communication component sends the vehicle identification code, the power supply number and the fault log to a preset analysis terminal.

9. The braking system according to claim 8, characterized in that: Also includes: A display component is connected to the acquisition component, and the display component displays the power supply number and the fault log.

10. A vehicle, characterized in that: include: A braking system as claimed in any one of claims 1 to 9.

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