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Automobile brake-by-wire system with backup function and pressure control method thereof

A kind of automobile wire and backup technology, applied in the direction of brake control system, brake safety system, brake, etc., can solve the problems of inability to meet the requirements of the wire brake system, complex braking capacity of the backup system, and high control difficulty, so as to improve safety. performance and reliability, large carrying capacity, and the effect of increasing the layout space

Active Publication Date: 2021-12-10
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the problems existing in the existing technology that it cannot meet the requirements of the brake-by-wire system, the control is difficult, the structure is complicated, the backup system is complicated, and the braking capacity is insufficient.

Method used

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  • Automobile brake-by-wire system with backup function and pressure control method thereof
  • Automobile brake-by-wire system with backup function and pressure control method thereof
  • Automobile brake-by-wire system with backup function and pressure control method thereof

Examples

Experimental program
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Embodiment Construction

[0043] The present invention is described in detail below in conjunction with accompanying drawing:

[0044] An automobile brake-by-wire system with backup function described in the present invention includes a semi-active brake pedal feeling simulator 1 , a liquid storage tank 2 , a main braking unit 3 and a backup braking unit 4 .

[0045] refer to figure 1 , the liquid storage tank 2 is made of hard plastic material, and there are four liquid outlets at the bottom of the liquid storage tank 2, which are respectively a port, b port, c port and d port. Provide brake fluid on the road and check the remaining amount of brake fluid.

[0046] The left rear wheel pressure sensor 5 , the right front wheel pressure sensor 6 , the left front wheel pressure sensor 7 and the right rear wheel pressure sensor 8 are active pressure sensors of type 303 of BOSCH Company to obtain the wheel cylinder pressures.

[0047] refer to figure 2 , the semi-active brake pedal feeling simulator 1 i...

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Abstract

The invention discloses an automobile brake-by-wire system with a backup function and a pressure control method thereof. The system comprises a semi-active brake pedal feeling simulator, a liquid storage tank, a main brake unit and a backup brake unit; a liquid inlet a of the liquid storage tank is connected with a liquid outlet D of the semi-active brake pedal feeling simulator; external interfaces b and c of the liquid storage tank are respectively connected with external interfaces e and f of the main brake unit, an external interface d of the liquid storage tank is connected with external interfaces G and H of the backup brake unit, and external interfaces A, B and g of the main brake unit are respectively connected with external interfaces E and F of the backup brake unit and a liquid inlet C of the semi-active brake pedal feeling simulator. According to the automobile brake-by-wire system with the backup function, the backup mode can be switched into when the main brake unit fails. The invention further provides a pressure control method of the automobile brake-by-wire system with the backup function.

Description

technical field [0001] The invention relates to a brake-by-wire system in the field of automobile brake systems. More specifically, the invention relates to an automobile brake-by-wire system with a backup function and a pressure control method thereof. Background technique [0002] With the continuous increase of the number of cars and people's higher and higher requirements for its safety and comfort, and problems such as road congestion, frequent accidents and problems caused by it are becoming more and more serious. In order to reduce traffic accidents, improve driving safety, satisfy drivers' driving habits and improve comfort, in the field of automobile braking, brake-by-wire has been continuously developed. The use of brake-by-wire to implement braking control on vehicles is of great significance for braking energy recovery of electric drive vehicles, automatic driving and even higher-level unmanned driving braking control. [0003] The emergence of automatic driving...

Claims

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Application Information

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IPC IPC(8): B60T8/40B60T13/74B60T13/68B60T17/22
CPCB60T8/409B60T13/746B60T13/686B60T17/22B60T2270/402
Inventor 初亮李会超许炎武赵迪常城李世博
Owner JILIN UNIV
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