Automobile parking braking and gear combination control system

A technology of parking brake and combined control, which is applied in the transmission system of locomotives, railway vehicles, hydrostatic brakes, etc., and can solve the problems of easy wear and tear of friction plates

Active Publication Date: 2014-06-25
CHANGZHOU DEV & MFR CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is necessary to start the vehicle, the driver often starts the vehicle without releasing the parking brake. In this way, the friction plate of the parking brake is very easy to wear, resulting in frequent replacement of the friction control plate.

Method used

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  • Automobile parking braking and gear combination control system

Examples

Experimental program
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Effect test

Embodiment

[0009] See the accompanying drawings, the joint control system of parking brake and shifting of this vehicle includes fuel tank 1, filter 2, hydraulic pump 3, safety valve 4, parking brake valve 5, parking hydraulic cylinder 6, parking brake 7, hydraulic control air valve 8. Air bag 9, gear selector valve 10-1, gear selector valve 10-2, gear select cylinder 11-1, gear shift cylinder 11-2; the oil inlet of hydraulic pump 3 passes through filter 2 and The oil tank 1 is connected, the oil outlet of the hydraulic pump 3 is connected with the oil inlet P port of the parking brake valve 5, and the oil outlet A port of the parking brake valve 5 is respectively connected with the parking hydraulic cylinder 6 and the hydraulic control air through two oil passages. The control port K of the valve 8 is connected, and the parking hydraulic cylinder 6 controls the action of the parking brake 7 . The air bag 9 is connected to the air inlet port P of the hydraulically controlled air valve 8,...

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PUM

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Abstract

The invention relates to an automobile parking braking and gear combination control system. The automobile parking braking and gear combination control system comprises an oil tank, a filter, a hydraulic pump, a parking brake valve, a parking hydraulic cylinder, a parking brake, a hydraulic-control air valve, an air pocket, a gear selecting reversing valve, a gear shifting reversing valve, a gear selecting air cylinder and a gear shifting air cylinder. According to the automobile parking braking and gear combination control system, parking braking and gear shifting combined control is achieved, so that gear selecting and shifting of an automobile in the parking braking state can not be carried out, the automobile can not move and the problem that a friction sheet of the parking brake is prone to abrasion when the automobile moves with gears engaged in the parking braking state is solved.

Description

technical field [0001] The invention relates to a joint control system of vehicle parking brake and gear position. Background technique [0002] According to coal mine safety regulations, all vehicles in coal mines need to be equipped with working braking system, emergency braking system and parking braking system. Usually emergency braking and parking braking are a set of braking systems. Vehicles operating in coal mines must be kept in a parking brake state when the vehicle is not moving. When it is necessary to start the vehicle, there are often drivers who do not release the parking brake and start the vehicle, so that the friction plates of the parking brake are very easy to wear and tear, resulting in frequent replacement of the friction control plates. Contents of the invention [0003] The object of the present invention is to propose a combined control system for vehicle parking brake and gear position that cannot be selected or shifted during parking brake. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H11/08B61C17/00B61C9/00
Inventor 饶俊良汪达勇李保琴杨宏景海燕
Owner CHANGZHOU DEV & MFR CENT
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