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Control device of vacuum servo braking system and automobile

A braking system and vacuum boosting technology, applied in the direction of brake transmission, brakes, vehicle components, etc., can solve the problem of low safety performance of vacuum booster braking system, and achieve the effect of ensuring normal braking and improving safety performance.

Active Publication Date: 2017-12-12
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a control device for a vacuum booster braking system and an automobile, which solves the problem of low safety performance of the vacuum booster braking system

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  • Control device of vacuum servo braking system and automobile
  • Control device of vacuum servo braking system and automobile
  • Control device of vacuum servo braking system and automobile

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Embodiment Construction

[0037] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] see figure 1 , the embodiment of the present invention provides a control device for a vacuum booster braking system, wherein the vacuum booster braking system includes at least two vacuum pumps 1 and at least two vacuum pressure sensors 2, and the control device includes: a power supply control module 3, a pressure Signal acquisition module 4, vacuum pump signal acquisition module 5, control signal output module 6 and processor 7.

[0...

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Abstract

The invention provides a control device of a vacuum servo braking system and an automobile. The vacuum servo braking system comprises at least two vacuum pumps and at least two vacuum pressure sensors. The control device comprises a power supply control module, a processor, and pressure signal collecting modules separately connected to the vacuum pressure sensors correspondingly and vacuum pump signal collecting modules and control signal output modules separately connected to the vacuum pumps correspondingly, wherein the processor determines the vacuum pressure value of the vacuum servo braking system by acquiring the pressure sensing signals of the vacuum pressure sensors and controls the vacuum pumps to start or stop according to the vacuum pressure value; and the processor acquires the working state signals of the vacuum pumps, and controls corresponding vacuum pumps to stop when the corresponding vacuum pumps are in fault states. The control device provided by the invention guarantees normal braking of the vacuum servo braking system by means of fault detection and execution of corresponding control policies, so that the safety performance of the whole automobile is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a control device for a vacuum booster braking system and an automobile. Background technique [0002] With the official release of the road vehicle functional safety standard ISO26262, vehicle safety has received more and more attention from the automotive industry. The current control device of the vacuum boosting braking system judges the vacuum pressure value inside the braking boosting system according to the pressure signal collected by the vacuum pressure sensor. According to the vacuum pressure value inside the brake booster system, the vacuum pump is controlled to work. [0003] This control method only meets the functional requirements. When the vehicle is driving straight at high speed or braking at a traffic light intersection, the vacuum pressure sensor may fail, and the detected vacuum pressure value inside the brake booster system is wrong, resulting in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/52B60T13/66
CPCB60T13/52B60T13/66
Inventor 罗林兰代康伟李党清赵营营
Owner BEIJING ELECTRIC VEHICLE
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