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Electrical park brake (EPB) valve assembly with internal respiration structure, and EPB

An internal breathing and assembly technology, applied in the direction of brakes, brake components, vehicle components, etc., can solve the problems of cumbersome pipeline layout and installation, affect the braking performance of the whole vehicle, block the external breathing valve, etc., and achieve comfortable operation performance, improve driving safety, and achieve a high degree of integration

Pending Publication Date: 2019-02-05
ZHEJIANG VIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional conventional parking brake is composed of a manual valve, a pipeline connected to the cab and a quick release valve for parking, which has the following disadvantages: 1) Since the traditional parking system needs to be installed in the cab 2) It has a single function and can only realize the parking function; 3) The pipeline layout and installation are cumbersome, and maintenance is also troublesome
[0003] Moreover, during the use of the car, the sand and dust on the road surface are easy to stick to the valve body. If the external breathing exhaust device is used, the external breathing valve will be blocked after a long time, thus affecting the overall performance of the EPB valve with internal breathing structure. Into normal work, in severe cases affect the braking performance of the vehicle

Method used

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  • Electrical park brake (EPB) valve assembly with internal respiration structure, and EPB
  • Electrical park brake (EPB) valve assembly with internal respiration structure, and EPB
  • Electrical park brake (EPB) valve assembly with internal respiration structure, and EPB

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 8As shown in the EPB valve assembly with an internal breathing structure, the valve body is provided with an air inlet 11 and an air outlet, and the valve body is provided with a first valve cavity 310 for installing an air-controlled two-position three-way valve 31 and is arranged on the The channel N used for exhaust in the valve body, the first valve core 311 is installed in the first valve cavity 310, the channel K is opened on the right end surface of the first valve cavity 310, the channel K communicates with the channel N, the first valve core 311 When moving to the channel K, the compressed air between the first valve core 311 and the channel K enters the channel N to be discharged through the channel K, and the EPB valve body includes an upper valve body 3 and a lower valve body 7, and the lower valve body 7 has a second Valve cavity 90, the second valve cavity 90 is installed with a relay piston 19, the upper end surface of the rela...

Embodiment 2

[0049] Such as Figure 9 As shown, this embodiment provides an EPB electronic parking brake system, including the integrated EPB valve assembly in Embodiment 1, and the electronic parking brake system also includes an air reservoir 80, a spring brake cylinder parking chamber 81 , the trailer module 82, the air inlet 11 is connected to the air storage tank 80, the first air outlet 21 and the second air outlet 22 are connected to the parking cavity 81 of the spring brake cylinder, the fourth air outlet 26 is connected to the trailer module 82 The air ports are connected, the control port 4 is connected with the air brake valve 4 , and the third air outlet 25 is connected with the control port of the trailer module 82 .

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Abstract

The invention relates to the field of electrical park brakes (EPBs), and discloses an EPB valve assembly with an internal respiration structure, and an EPB. The EPB valve assembly comprises a valve body; an air inlet (11) and an outlet are formed in the valve body; the valve body is provided with a first valve cavity (310) for mounting an air-controlled two-position three-way valve (31), and a channel N arranged in the valve body for air exhausting; a first valve element (311) is mounted in the first valve cavity (310); a channel K is formed in the right end face of the first valve cavity (310) and communicates with the channel N; and when the first valve element (311) moves towards the channel K, compressed air between the first valve element (311) and the channel K enters the channel N through the channel K to be exhausted. The valve body is high in integration degree, pipeline layout is convenient, and meanwhile sediment blockage can be prevented through internal respiration.

Description

technical field [0001] The invention relates to the field of electronic parking brake systems for automobiles, in particular to an EPB valve assembly with an internal breathing structure and an EPB electronic parking brake system. Background technique [0002] EPB: Electrical Park Break, electronic parking brake system, is a conventional manual valve and quick release valve into an electronic control unit (NCU) and an EPB valve assembly with an internal breathing structure, combined with other systems and logic . An automobile safety control system with the advantages of compact structure and complete functions. The traditional conventional parking brake is composed of a manual valve, a pipeline connected to the cab and a quick release valve for parking, which has the following disadvantages: 1) Since the traditional parking system needs to be installed in the cab 2) It has a single function and can only realize the parking function; 3) The pipeline layout and installation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/02
CPCB60T15/027
Inventor 陈锋陈钢强马加什·克拉波特金杰傅盈华李少峰刘旺昌俞珊湖
Owner ZHEJIANG VIE SCI & TECH
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