Pneumoelectric double-control auxiliary parking valve and commercial vehicle braking system

A technology of parking valve and air control, which is applied in the field of parking brakes of commercial vehicles, can solve the problems of insufficient braking capacity and braking limitations, reduce dependence, improve parking reliability, improve parking capacity and The effect of parking stability

Active Publication Date: 2021-04-13
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gas-electric dual-control auxiliary parking valve and a commercial vehicle braking system to solve the braking limitations, insufficient braking capacity and Brake reliability risk problem, realize gas-electric dual-control graded parking function

Method used

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  • Pneumoelectric double-control auxiliary parking valve and commercial vehicle braking system
  • Pneumoelectric double-control auxiliary parking valve and commercial vehicle braking system
  • Pneumoelectric double-control auxiliary parking valve and commercial vehicle braking system

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention belongs to the technical field of commercial vehicle parking braking, and discloses a pneumoelectric double-control auxiliary parking valve and a commercial vehicle braking system, the pneumoelectric double-control auxiliary parking valve comprises a two-way check valve, a pneumoelectric double-position three-way valve and an electric double-position three-way valve, a driving air inlet of the two-way check valve is connected with a driving foot valve control air; an air outlet of the two-way check valve is connected with a traveling relay valve or an air chamber, and an exhaust control port of the pneumatic control two-position three-way valve is connected with control air of a vehicle parking manual valve; and a control port of the electric control two-position three-way valve is connected with a self-resetting switch for controlling auxiliary parking of the vehicle. Pneumatic control and electric control are matched to control parking, and the graded parking function is achieved; and an original commercial vehicle braking system does not need to be changed, dependence on electricity is reduced, the parking reliability is improved, mechanical braking and inflation braking are well integrated, and the parking capacity and the parking stability of a vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of commercial vehicle parking brakes, in particular to a gas-electric dual-control auxiliary parking valve and a commercial vehicle braking system. Background technique [0002] In the commercial vehicle braking system in the prior art, the parking braking methods include mechanical braking and pneumatic braking. The parking capacity requirements are even higher, especially when loading and unloading cargo may involve temporary parking. For the braking system of pure mechanical braking, due to the limitation of the capacity of the spring cylinder, the parking braking capacity is insufficient when the slope is large or the load is heavy, and parking cannot be realized. As for the technical solution of using the parking solenoid valve to assist mechanical braking to achieve the parking effect of the vehicle, since the solenoid valve needs to be powered for a long time to maintain the working state, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/04B60T13/24B60T15/18B60T7/10
CPCB60T7/10B60T13/04B60T13/24B60T15/18
Inventor 郭冬妮田博刘明明乔艳辉马明武高枫张军曲健刚和光宇贾玮琦
Owner FAW JIEFANG AUTOMOTIVE CO
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