Redundantly controlled automobile electric vacuum pump system

An electric vacuum pump and redundant control technology, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of automobile braking performance degradation, the effect cannot meet the use requirements, etc., and achieve the effect of ensuring effective work

Inactive Publication Date: 2018-01-26
芜湖奇点新能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the effect of the vacuum booster does not meet the requirements for use, thereby reducing the braking performance of the car, it is necessary to use an electric vacuum pump to provide vacuum

Method used

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  • Redundantly controlled automobile electric vacuum pump system

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Embodiment Construction

[0012] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0013] Such as figure 1 As shown, the present embodiment provides an automotive electric vacuum pump system with redundant control, including an electric vacuum pump, the electric vacuum pump is connected to a pump electronic control unit to drive and diagnose the electric vacuum pump, and the pump electronic control unit is connected to a CAN bus module , the CAN bus module is connected to the automotive electronic control unit, and the pump electronic control unit obtains the information of the automotive electronic control unit; the electric vacuum pump is connected to a vacuum tank, the vacuum tank is connected to a vacuum booster, and the vacuum booster is connected to a vacuum sensor...

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Abstract

The purpose of the invention is to provide a redundantly controlled automobile electric vacuum pump system. An automobile electronic control unit is arranged for monitoring the driving state of an automobile and the state of a vacuum booster, a pump electronic control unit starts an electric vacuum pump for vacuum pumping once the braking is insufficient or the vacuum is insufficient according tothe monitoring state of the automobile electronic control unit, the electric vacuum pump is connected with a vacuum tank, the vacuum tank is connected with the vacuum booster, so that the required degree of vacuum by the braking is offered, the redundant control is achieved, and an automobile braking system can be well ensured to work effectively.

Description

technical field [0001] The invention relates to the application field of an automobile electric vacuum pump, in particular to a redundant control automobile electric vacuum pump system. Background technique [0002] The vacuum boosting effect of the automobile braking system is related to the driving safety of the automobile. The car engine is connected to the vacuum booster. When the engine is running, negative pressure is generated, and a pressure difference is formed at both ends of the booster diaphragm, so as to reduce the operating force of the brake pedal. The degree of vacuum directly affects the braking effect. . As the thermal efficiency of the engine continues to increase, the engine pumping loss decreases, and the intake vacuum decreases accordingly. The inefficient operation of the engine in a hybrid car is greatly reduced under part load conditions, so the vacuum level is also greatly affected. If the effect of the vacuum booster does not meet the requiremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/72
Inventor 许敏郎玉山程潜
Owner 芜湖奇点新能源科技有限公司
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