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Automobile pneumatic braking system

A technology of pneumatic braking and driving braking, which is applied in the direction of braking safety systems, brakes, and braking transmission devices. Guaranteed safe and reliable results

Inactive Publication Date: 2015-05-13
深圳市五洲龙汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing air pressure braking system has no overload protection. When the parking brake and the service brake are performed at the same time, the pressure of the brake air chamber is too large due to the lack of overload protection, which will cause rough braking and damage the tires. Locking will cause accidents such as side skidding and tail flicking, and the brake pipeline will be overwhelmed and burst, causing serious consequences and causing hidden dangers to driving safety

Method used

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  • Automobile pneumatic braking system
  • Automobile pneumatic braking system
  • Automobile pneumatic braking system

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The above-mentioned automotive air braking system will be further elaborated below through specific embodiments.

[0023] see figure 1 , the automotive air pressure brake system 100 of one embodiment, including foot brake valve 110, hand brake valve 120, air reservoir 130, relay valve 140, differential relay valve 150, brake chamber 160 and air compressor 170.

[0024] The foot brake valve 110 is arranged in the cab of the car and is used for service braking. The foot brake valve 110 has an air inlet 112 and an air outlet 114 . During driving, the valve of the foot brake valve 110 is in a disconnected state. When it is necessary to perform service braking, step on the pedal of the foot brake valve 110, the valve is closed, and the gas path is communicated.

[0025] The hand brake valve 120 is also arranged in the cab of the car for parking brake. The handbrake valve 120 has an air inlet 122 and an air outlet 124 . During driving, the valve of the hand brake valve ...

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Abstract

The invention discloses an automobile pneumatic braking system, which comprises two braking air chambers, an air cylinder, a foot braking valve, a hand braking valve and a differential relay valve. The foot braking valve has an air outlet and an air inlet communicated with the air cylinder; the hand braking valve has an air outlet and an air inlet communicated with the air cylinder; and the differential relay valve has first control port communicated with the air outlet of the hand braking valve, a second control port communicated with the air outlet of the foot braking valve, an air inlet communicated with the air cylinder and a second air outlet communicated with the two braking air chambers. The automobile pneumatic braking system is provided with the differential relay valve, the first control port of the differential relay valve is communicated with the air outlet of the hand braking valve, the second control opening is communicated with the air outlet of the foot braking valve, and the air inlet is communicated with the air cylinder; and thus, when a service brake and a parking brake are used at the same time, air can be charged into the braking air chambers in time to make parking brake invalid. The overload protection function of the system can prevent the service brake and the parking brake work at the same time without influencing the effective operation of the service brake.

Description

【Technical field】 [0001] The invention relates to the technical field of automobile braking, in particular to an automobile air pressure braking system. 【Background technique】 [0002] The air brake system is a brake system often used in automobiles. It uses a brake valve to control an air valve to control the braking force. When braking, the air pressure from the air storage tank to each brake cylinder is controlled according to the stroke of the brake valve, and the air pressure in the brake pipeline makes the brake cylinder act and drive the brake to work. The braking performance of the car is directly related to the driving safety of the car. At present, the existing air pressure braking system has no overload protection. When the parking brake and the service brake are performed at the same time, the pressure of the brake air chamber is too large due to the lack of overload protection, which will cause rough braking and damage the tires. Locking will cause accidents s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/44B60T17/18
Inventor 张景新庞成鑫鲍坤勇
Owner 深圳市五洲龙汽车股份有限公司