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Vehicle booster braking device

A braking device and vehicle technology, applied in the field of vehicles, can solve problems affecting braking performance, causing traffic accidents, braking hysteresis, etc., and achieve the effect of preventing traffic accidents

Active Publication Date: 2018-06-29
青岛华瑞丰机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As people pay more and more attention to the protection of the natural environment, pollution-free electric vehicles have become a popular direction. Due to the cancellation of the traditional fuel engine, the original vacuum booster loses vacuum and cannot assist braking.
Chinese Patent Application No. 200810163260.5 discloses a hydraulic power-assisted braking device, which uses a hydraulic booster instead of a vacuum booster to solve the problem that the power-assisted braking cannot be performed due to the cancellation of the fuel engine, but the above-mentioned invention is driven by the engine. After the engine is turned off, the hydraulic pump will no longer work, so it will not be able to produce pressure oil, so when the engine is turned off, the power-assisted braking cannot be realized, which will cause traffic accidents
The above-mentioned invention uses hydraulic oil for braking. Since the maximum flow rate of hydraulic oil generally does not exceed 6m / s, when the brake pedal assembly is far away from the brake, the pressure oil acts on the braking force of the brake when the brake pedal assembly is depressed. The slave cylinder takes a long time, so there will be braking hysteresis, and because the general front wheel brake is closer to the brake pedal assembly, the pressure oil will first enter the brake cylinder of the front wheel brake for braking, and the front wheel brake and When the distance between the rear wheel brakes is relatively long, the time difference between the pressure oil acting on the brake cylinders on the front wheel brakes and the rear wheel brakes is relatively long, and the rear wheel brakes will obviously lag behind, seriously affecting the braking performance and causing traffic accidents. ACCIDENT

Method used

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  • Vehicle booster braking device

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and given embodiment, the present invention will be further described:

[0013] Such as figure 1 As shown, a vehicle booster braking device includes a braking mechanism 50, a front wheel brake 10 and a rear wheel shaver 13, and the braking mechanism 50 includes a booster valve 5, a brake valve 6, an oil cup 7, a supplementary oil check valve 8 and brake cylinder 9, the booster valve 5 has a first piston rod 5-1 and a first piston 5-2, and the brake valve 6 has a second piston rod 6-1 and a second Piston 6-2, the first piston rod 5-1 of the booster valve 5 is fixedly connected or integrated with the second piston rod 6-1 of the brake valve 6, and the oil cup 7 is connected to the The rodless chamber of the brake valve 6 is connected, and the rodless chamber of the brake valve 6 is connected with the rodless chamber of the brake cylinder 9, and the third piston rod 9-1 of the brake cylinder 9 is connected with the front whee...

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Abstract

An auxiliary braking device of a vehicle comprises braking mechanisms, a front wheel brake and a rear wheel brake. Each braking mechanism comprises an auxiliary valve, a braking valve, an oil cup, an oil supplementing one-way valve and a braking cylinder and further comprises an air bag, a double-cavity air braking valve, a first energy accumulator, a first air control hydraulic valve, a second energy accumulator and a second air control hydraulic valve. The braking mechanisms are mounted on the front wheel brake and the rear wheel brake respectively. The energy accumulators are adopted as a power source, and auxiliary braking can be carried out after stalling of an engine. An air channel is arranged between each double-cavity air braking valve and the corresponding air control hydraulic valve, the response speed of the brakes is increased, and no braking delaying phenomenon occurs. When the front wheel brake and the rear wheel brake are too far away from each other currently, the response time difference between the front wheel brake and the rear wheel brake is relatively short, rear wheel braking is not obviously delayed, the braking performance is not influenced, and no traffic accident is caused.

Description

technical field [0001] The invention relates to a vehicle, in particular to a vehicle booster braking device. Background technique [0002] As people pay more and more attention to the protection of the natural environment, pollution-free electric vehicles have become a popular direction. Due to the cancellation of the traditional fuel engine, the original vacuum booster loses vacuum and cannot assist braking. Chinese Patent Application No. 200810163260.5 discloses a hydraulic power-assisted braking device, which uses a hydraulic booster instead of a vacuum booster to solve the problem that the power-assisted braking cannot be performed due to the cancellation of the fuel engine, but the above-mentioned invention is driven by the engine. After the engine is turned off, the hydraulic pump will no longer work, so it will not be able to produce pressure oil. Therefore, when the engine is turned off, power-assisted braking cannot be achieved, which will cause traffic accidents. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/14B60T13/44
CPCB60T13/14B60T13/44B60T13/581
Inventor 魏金宝魏皓甄高超赵治良王青天徐建锋李晓靓张含璐梁涛李文亭杨忠正
Owner 青岛华瑞丰机械有限公司
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