CN213292270U

CN213292270U - Electronic parking braking system and vehicle

Info

Publication number: CN213292270U
Application number: CN202021905208.5U
Authority: CN
Inventors: 张�杰
Original assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Current assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-05-28
Anticipated expiration: 2030-09-03

Abstract

The application discloses electron parking braking system and vehicle belongs to the parking braking field. The electronic parking brake system comprises a main controller and an auxiliary controller, wherein the main controller and the auxiliary controller are integrated with the electronic parking brake system; the main controller and the auxiliary controller realize communication through a first communication bus; the main controller is electrically connected with the power supply unit through a first power line, and the auxiliary controller is electrically connected with the power supply unit through a second power line; the brake execution device is electrically connected with the main controller and the auxiliary controller respectively; and the braking request device is electrically connected with the main controller and the auxiliary controller respectively. The problem that when current part motorcycle type EPB or ESP broke down is solved in this application, electron parking function can become invalid.

Description

Electronic parking braking system and vehicle

Technical Field

The application relates to the field of parking braking of automobiles, in particular to an electronic parking braking system and a vehicle.

Background

Along with the development of automobiles, electronic parking brake has become the mainstream of the market, and the electronic parking brake in the current market mainly has two modes: one is to control the car parking brake by a separate EPB (electronic parking brake system) controller, and the other is to control the car parking brake by an ESP (electronic stability program) by integrating EPB software into the ESP. Many current cars still are equipped with P shelves lock, and when EPB or ESP broke down, the electron parking function can be invalid, and P shelves lock can guarantee that the car still has certain hill hold ability this moment.

However, for reasons such as the cost of the whole vehicle, the P-range lock device is cancelled in some vehicle models, and after the P-range lock is cancelled, if the electronic parking function fails, the vehicle loses the parking capability, and a potential safety hazard exists. Therefore, it is an urgent technical problem to provide an electronic parking system capable of reliably parking a vehicle even when an ESP or EPB controller fails.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved is when current part motorcycle type EPB or ESP break down, the problem that electron parking function can become invalid.

In view of the above technical problems, the present application provides the following technical solutions:

the electronic parking brake system comprises a main controller and an auxiliary controller, wherein the main controller and the auxiliary controller are integrated with the electronic parking brake system; the main controller and the auxiliary controller realize communication through a first communication bus; the main controller is electrically connected with the power supply unit through a first power line, and the auxiliary controller is electrically connected with the power supply unit through a second power line; the brake execution device is electrically connected with the main controller and the auxiliary controller respectively; and the braking request device is electrically connected with the main controller and the auxiliary controller respectively.

In some embodiments of the present application, the main controller is connected to the vehicle-mounted gateway through a second communication bus, and the auxiliary controller is connected to the vehicle-mounted gateway through a third communication bus.

In some embodiments of the present application, the main controller and the auxiliary controller are connected to a vehicle-mounted gateway through the first communication bus.

In some embodiments of the present application, the main controller is a vehicle body electronic stability system; the auxiliary controller is an electronic vacuum power-assisted system.

In some embodiments of the present application, the brake actuating device includes a first electronic caliper and a second electronic caliper, the main controller is connected to the first electronic caliper and the second electronic caliper, respectively, and the auxiliary controller is connected to the first electronic caliper and the second electronic caliper, respectively; the first electronic caliper and the second electronic caliper are used for performing parking braking when the main controller or the auxiliary controller sends a braking command.

In some embodiments of the present application, the first electronic caliper and the second electronic caliper respectively cooperate with a left wheel and a right wheel of a vehicle body to implement parking braking.

In some embodiments of the present application, the brake request device includes an electronic parking brake switch.

The application also discloses a vehicle, which comprises the electronic parking brake system.

Compared with the prior art, the technical scheme of the application has the following technical effects:

the electronic parking brake system comprises a main controller and an auxiliary controller, wherein the main controller and the auxiliary controller are connected through a first communication bus and can communicate with each other; when the main controller fails, the auxiliary controller starts to control the brake execution device to realize parking brake after receiving a fault signal of the main controller, so that the problem of failure of an electronic parking function caused by the fault of the main controller is avoided; meanwhile, the main controller and the auxiliary controller are connected with the power supply unit through two independent power lines, so that the situation that the two controllers fail simultaneously due to the influence of power failure is avoided.

Furthermore, in the electronic parking brake system provided by the application, the main controller is connected with the vehicle-mounted gateway through a second communication bus, and the auxiliary controller is connected with the vehicle-mounted gateway through a third communication bus. The main controller and the auxiliary controller are respectively connected with the vehicle-mounted gateway through a communication bus, so that the problem that the two controllers are invalid due to the fault of a communication network part when the two controllers are connected through one communication bus can be solved.

Drawings

The objects and advantages of this application will be appreciated by the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a system frame diagram of one embodiment of an electric parking brake system of the present application;

fig. 2 is a system frame diagram of another embodiment of the electronic parking brake system of the present application.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 shows a specific embodiment of an electronic parking brake system provided in the present application, which includes a main controller and an auxiliary controller, wherein the main controller and the auxiliary controller are respectively integrated with the electronic parking brake system, so as to implement parking brake control; the braking system also comprises a braking request device which receives a braking request of a user and transmits the braking request to the main controller or the auxiliary controller, and a braking execution device which executes braking operation according to a control command of the main controller or the auxiliary controller.

The main controller and the auxiliary controller realize communication through a first communication bus; the brake request device comprises a main controller, an auxiliary controller, a brake execution device and a brake request device, wherein the main controller is electrically connected with a power supply unit through a first power line, the auxiliary controller is electrically connected with the power supply unit through a second power line, the brake execution device is electrically connected with the main controller and the auxiliary controller respectively, and the brake request device is electrically connected with the main controller and the auxiliary controller respectively.

In the electronic parking brake system, the main controller and the auxiliary controller are connected through the first communication bus, so that the main controller and the auxiliary controller can communicate with each other; when the main controller breaks down, a fault signal is transmitted to the auxiliary controller, the auxiliary controller starts to control the brake execution device to realize parking brake, the problem that the electronic parking function fails due to the failure of the main controller is avoided, and meanwhile, the main controller and the auxiliary controller are connected with the power supply unit through two independent power lines, so that the situation that the two controllers simultaneously fail due to the influence of power failure is avoided.

The specific implementation modes of the main controller and the auxiliary controller are not unique; as an embodiment, as shown in fig. 1, the main controller is a vehicle body electronic stability system, i.e., ESP system; the auxiliary controller is an electronic vacuum power-assisted system, namely an ibooster system.

In particular, in one embodiment, the brake actuating device comprises a first electronic caliper and a second electronic caliper, the main controller is connected with the first electronic caliper and the second electronic caliper respectively, and the auxiliary controller is connected with the first electronic caliper and the second electronic caliper respectively; the first electronic caliper and the second electronic caliper are used for clamping wheels to achieve parking braking when the main controller or the auxiliary controller sends a braking instruction, and more specifically, the first electronic caliper and the second electronic caliper are respectively arranged on the left and right wheels of a vehicle body. In another specific embodiment, the brake execution device is a wheel pressurization device, and the wheel pressurization device pressurizes a wheel to realize parking braking when receiving a braking instruction sent by the main controller or the auxiliary controller.

Specifically, the brake request means includes an electronic parking brake switch, which may be provided at a dashboard or on a steering wheel or a front seat center armrest or the like at a position convenient for a driver to use, depending on a specific vehicle type.

Specifically, in one embodiment, as shown in fig. 2, the main controller and the auxiliary controller are respectively connected to a vehicle gateway through the first communication bus. The communication between the main controller and the auxiliary controller and the communication between the two controllers and the vehicle-mounted gateway can be realized through one communication bus, so that the whole system is simple and reliable in structure.

In another embodiment, as shown in fig. 1, the main controller is connected to a vehicle-mounted gateway through a second communication bus, and the auxiliary controller is connected to the vehicle-mounted gateway through a third communication bus. The main controller and the auxiliary controller are respectively connected with the vehicle-mounted gateway through one communication bus, and the problem that the two controllers are invalid due to the fault of a communication network part when the two controllers are connected through one communication bus can be solved.

In the specific embodiment of the present application, a vehicle is further provided, and the structure and function of the electronic parking system are applied to the vehicle, which is not described herein again.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the present application.

Claims

1. An electronic parking brake system characterized by: which comprises the steps of preparing a mixture of a plurality of raw materials,

the parking brake system comprises a main controller and an auxiliary controller, wherein the main controller and the auxiliary controller are integrated with an electronic parking brake system; the main controller and the auxiliary controller realize communication through a first communication bus; the main controller is electrically connected with the power supply unit through a first power line, and the auxiliary controller is electrically connected with the power supply unit through a second power line;

the brake execution device is electrically connected with the main controller and the auxiliary controller respectively;

and the braking request device is electrically connected with the main controller and the auxiliary controller respectively.

2. An electronic parking brake system according to claim 1, characterized in that:

the main controller is connected with the vehicle-mounted gateway through a second communication bus, and the auxiliary controller is connected with the vehicle-mounted gateway through a third communication bus.

3. An electronic parking brake system according to claim 1, characterized in that:

the main controller and the auxiliary controller are connected with the vehicle-mounted gateway through the first communication bus.

4. An electronic parking brake system according to any one of claims 1 to 3, characterized in that:

the main controller is an electronic stabilizing system of the vehicle body.

5. An electronic parking brake system according to any one of claims 1 to 3, characterized in that:

the auxiliary controller is an electronic vacuum power-assisted system.

6. An electronic parking brake system according to any one of claims 1 to 3, characterized in that:

the brake executing device comprises a first electronic caliper and a second electronic caliper, the main controller is respectively connected with the first electronic caliper and the second electronic caliper, and the auxiliary controller is respectively connected with the first electronic caliper and the second electronic caliper; the first electronic caliper and the second electronic caliper are used for performing parking braking when the main controller or the auxiliary controller sends a braking command.

7. An electronic parking brake system according to claim 6, characterized in that:

the first electronic caliper and the second electronic caliper are respectively matched with a left wheel and a right wheel of a vehicle body to realize parking braking.

8. An electronic parking brake system according to any one of claims 1 to 3, characterized in that:

the brake request means includes an electronic parking brake switch.

9. A vehicle characterized by comprising an electronic parking brake system according to any one of claims 1 to 8.