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Hill-start control device under traveling and parking braking and using method thereof

A technology for ramp starting and control devices, which is applied in the direction of automatic starting devices, etc., can solve the problems of not being available at the same time, narrow application range, poor controllability, etc., and achieve the effect of easy operation, convenient operation and strong automaticity

Active Publication Date: 2013-04-24
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects and problems existing in the prior art that cannot simultaneously possess the functions of driving and parking braking downhill start, narrow application range, and poor controllability, and provide a vehicle that can simultaneously possess driving, Hill start control device for driving and parking brake with function, wide application range and strong controllability for hill start under parking brake and its use method

Method used

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  • Hill-start control device under traveling and parking braking and using method thereof
  • Hill-start control device under traveling and parking braking and using method thereof

Examples

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Effect test

Embodiment 1

[0046] It is used as a hill start control device under driving and parking brakes. The air outlet of the air compressor 1 in this device communicates with the air inlet of the four-circuit protection valve 3 through the air dryer 2, and the air outlet of the four-circuit protection valve 3 The air outlet communicates with the hand brake air reservoir 4 and the foot brake air reservoir 5, and the other end of the hand brake air reservoir 4 passes through the hand brake valve 6, the differential relay valve 14, and the parking ramp start solenoid valve 17 in sequence. It communicates with the spring air chamber 18, and the other end of the foot brake air reservoir 5 communicates with the spring air chamber 18 through the foot brake valve 7, the intermediate valve 13 (load sensing valve or relay valve), the driving ramp start solenoid valve 16 in sequence , the parking air pressure sensor 8 is arranged on the air path between the hand brake valve 6 and the differential relay valve...

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Abstract

The invention relates to a hill-start control device under traveling and parking braking and a using method thereof. In the invention, an air compressor is communicated with a hand braking reservoir and a feet braking reservoir through an air drier and a four-loop protective valve; the other end of the hand braking reservoir is communicated with a spring air chamber sequentially through a hand braking valve, a differential relay valve and a parking hill-start electromagnetic valve; the other end of the feet braking reservoir is communicated with the spring air chamber sequentially through a feet braking valve, an intermediate valve and a traveling hill-start electromagnetic valve; a parking air pressure sensor is arranged on an air path between the hand braking valve and the differential relay valve; a traveling air pressure sensor is arranged on an air path between the intermediate valve and the traveling hill-start electromagnetic valve; and the air pressure sensor and the hill-start electromagnetic valve are both connected with a whole electric control system circuit. The hill-start control device disclosed by the invention has the advantages of hill-start function under traveling and parking braking, stronger automaticity, higher sensitivity, strong controllability, wider application range and higher safety.

Description

technical field [0001] The invention relates to a control device for starting on a hill, in particular to a control device for starting on a hill under driving and parking brakes and a method for using the same, and is particularly suitable for vehicles equipped with an automatic transmission (AMT for short). The car starts on a slope under the driving and parking brakes. Background technique [0002] At present, the ramp start under the braking state includes two types: the ramp start with the service brake and the ramp start with the parking brake. [0003] For driving brake downhill start: some vehicles equipped with AMT adopt the method of timing delay driving brake, that is, when the engine accelerator pedal is stepped on, the braking system automatically maintains the brake for a period of time (a few seconds at a time), After the delay is over, the brake is released and the start is completed; if the start is not completed within the time limit and no braking measure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12
Inventor 蒋学锋谢浩胡华东黄建国
Owner DONGFENG MOTOR CORP HUBEI
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