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Automobile multi-redundant emergency braking method

An emergency braking, multi-redundancy technology, applied in the direction of brakes, brake safety systems, brake transmission devices, etc., to achieve the effect of reducing the probability of brake failure

Inactive Publication Date: 2019-09-24
CHERY COMML VEHICLE ANHUI
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  • Application Information

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: regulations clearly stipulate that passenger cars must be equipped with emergency / emergency braking to ensure that the braking function is available when the service braking system fails

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] see figure 1 , an automobile multi-redundant emergency braking method has:

[0020] ibooster is an electronic vacuum booster, ESP is an electronic body stabilization system, and EPB is an electronic parking brake system; the braking method includes the following steps:

[0021] 1) The brake request signal is simultaneously transmitted to the ibooster, ESP and EPB systems through the CAN network, that is, the vehicle control bus;

[0022] 2) If the ibooster system is not faulty, the ibooster will complete the braking; if the ibooster system is faulty, perform step 3);

[0023] 3) The CAN network transmits signals to the ESP system. If the ESP system is not faulty, the ESP system will complete the braking; if the ESP system is f...

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Abstract

The invention discloses an automobile multi-redundant emergency braking method. According to the automobile multi-redundant emergency braking method, an ibooster, namely an electronic vacuum booster, an ESP, namely an electronic stabilization program and an EPB namely an electronic parking braking system are adopted. The braking method includes the following steps that (1), a braking request signal is transmitted to the ibooster, ESP and EPB systems simultaneously through a CAN network, namely, a controller area network; (2), when the ibooster system is fault-free, the break is completed by the ibooster, and when the ibooster system fails, the step (3) is performed; (3) the CAN network transmits the signal to the ESP system, and the ESP system completes braking when the ESP system is fault-free, and when the ESP system fails, the step (4) is performed; and (4) the CAN network transmits the signal to the EPB system, and the EPB system completes braking when the EPB system is fault-free, the ibooster is further included in the redundant link of emergency braking to further reduce the probability of braking failure.

Description

technical field [0001] The invention belongs to the technical field of automobile braking, in particular to an automobile multi-redundant emergency braking method. Background technique [0002] With the development of electronic technology, the electronic parking system EPB has almost become a standard product for passenger cars, and the electronic vacuum booster ibooster is becoming more and more popular. EPB, ibooster, esp and other electrical equipment can implement communication and diagnosis functions through the vehicle CAN network. [0003] In the process of realizing the present invention, the inventor found at least the following problems in the prior art: regulations clearly stipulate that passenger cars must be equipped with emergency / emergency brakes to ensure that they have the braking function when the service brake system fails. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an automobile multi-r...

Claims

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Application Information

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IPC IPC(8): B60T13/52B60T13/74B60T17/22
CPCB60T13/52B60T13/74B60T17/22
Inventor 李虎本黄巨成朱亚伟
Owner CHERY COMML VEHICLE ANHUI
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