Control method of trailer control valve

A control method and control valve technology, applied to control valves, air release valves, brakes, brake components, etc., can solve the problems of hysteresis in the transmission rate of air pressure signals, slow brake response, lengthy air pressure pipelines, etc., and achieve improved control Improve motor coordination, satisfy safety, and improve comfort

Active Publication Date: 2014-12-10
ZHEJIANG VIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The trailer control valve conventionally used in the air brake system is usually a double-circuit air pressure control to provide the brake signal for t

Method used

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  • Control method of trailer control valve
  • Control method of trailer control valve
  • Control method of trailer control valve

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Experimental program
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Embodiment Construction

[0022] Such as figure 1 As shown, the trailer control valve of the present invention includes a nut 1, a bolt 2, a base plate 3, a cover 4, a large piston 5, a steel wire retaining ring 6, a piston sleeve 7, a push rod piston 8, a compression spring 9, and a retaining ring 10 for a hole. , guide piston 11, gasket 12, main piston 13, controller housing 14, circuit board 15, air guiding rod 16, muffler housing 19, booster valve 22, pressure reducing valve 23, backup pressure valve 24, valve body 25, The valve body is provided with an inner cavity, and the inner cavity of the valve is provided with a service brake cavity, a large piston return cavity, a booster cavity, an air outlet cavity, and a parking cavity in sequence from top to bottom. Air intake port 1A, air supply port 21A, air outlet port 22A, exhaust port 3A, driving control port 42A and parking control port 43A.

[0023] Nut 1 and bolt 2 securely connect the bottom plate 3 with the valve body 25; the cover 4 is insta...

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PUM

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Abstract

The invention discloses a control method of a trailer control valve. A double-loop control system of the trailer control valve is formed by an electric control loop and an air pressure control loop, the electric control loop and the air pressure control loop carry out concurrent control, the air pressure control loop works under the normal condition, and when the air pressure control loop cannot complete braking, the electric control loop assists the air pressure control loop in working. The double-loop control of electric control signal and air control signals is adopted, signals are collected by a pressure sensor arranged at an air outlet and are fed back to a controller, then the controller controls a pressure increasing valve, a pressure reducing valve and a pressure preparing valve to be opened and closed, electrical control over the trailer control valve is achieved, the defect that in the traditional air pressure control process, due to the fact that the pipeline is long, air pressure signals are slow to transmit is overcome, and the vehicle brake response time is shortened.

Description

technical field [0001] The invention relates to a control method for a trailer control valve. Background technique [0002] The conventionally used trailer control valve in the air brake system is usually a double-circuit air pressure control to provide a brake signal for the trailer pipeline. However, due to factors such as long air pressure pipelines and hysteresis in the transmission rate of the air pressure signal, the brake response is slow. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electric-pneumatic coupling control method for controlling the trailer control valve, improve the braking response, realize the adaption of braking force distribution and load distribution, and improve the braking coordination between the tractor and the trailer performance and improved deceleration control comfort. [0004] In order to solve the above technical problems, the present invention adopts the following techn...

Claims

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Application Information

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IPC IPC(8): B60T15/02
Inventor 傅直全苑庆泽钟焕祥侯宗岗骆楹炯
Owner ZHEJIANG VIE SCI & TECH
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