Brake device for a vehicle with an electric parking brake system and corresponding control method

A technology of braking equipment and braking devices, applied in the direction of braking control systems, manual starting devices, automatic starting devices, etc., can solve the problems of insufficient deceleration and impracticable braking effect, etc., to reduce losses and loads Effect

Active Publication Date: 2007-06-27
CONTINENTAL AUTOMOTIVE SYST SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to the vehicle starting to roll undesirably (Anrollen) or to insufficient deceleration
[0007] In addition, during braki

Method used

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  • Brake device for a vehicle with an electric parking brake system and corresponding control method

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Experimental program
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Embodiment Construction

[0033] The brake system shown in FIG. 1 comprises a hydraulic service brake system of a vehicle 1 with an operating device 2, a master cylinder 3 and wheel brakes 4 on the respective brake wheels 5 of the vehicle 1 with the wheel brakes having Wheel brake cylinders, which are fluidly connected to master brake cylinder 3 via brake lines 6 .

[0034] The operating device 2 is usually designed as a brake pedal which is actuated by the driver of the vehicle 1 . When pressure is applied to the brake pedal, a pressure is built up by the driver inside the brake fluid in the master cylinder 3, which is transmitted to the wheel brakes 4 via the brake lines 6, whereby, in the wheel brakes 4, the The brake pads on the piston are pressed against the brake disc 7 .

[0035] The service brake system can be a conventional mechanical brake system in which the force exerted by the driver when actuating the actuating device 2 is amplified by a brake booster in order to build up brake pressure ...

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PUM

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Abstract

The invention relates to a brake device for a vehicle comprising a hydraulic service brake system with a power supply unit, which builds up a brake pressure inside a brake master cylinder of the service brake system according to a pressure demand, this brake pressure being transferred to at least one wheel brake, and comprising an electric parking brake system. The inventive brake device is characterized in that during the operation of the service brake system, a control unit verifies whether a defect exists in the service brake system on the basis of a comparison of the pressure demand with the brake pressure in at least one wheel brake and/or on the basis of a comparison between a recorded vehicle acceleration and an acceleration of the vehicle expected due to the pressure demand, and that the control unit activates the electric parking brake system when the existence of a defect is established. The invention also relates to a method for controlling the brake system of a vehicle.

Description

technical field [0001] The invention relates to a braking system for a vehicle comprising a hydraulic service brake system with an energy supply unit which establishes a braking system according to the pressure requirements inside the master brake cylinder of the service brake system. Dynamic pressure, the brake pressure is transmitted to at least one wheel brake, the brake system also includes an electric parking brake device. [0002] Furthermore, the invention relates to a method for controlling a brake system of a vehicle, wherein a brake pressure is built up in a master brake cylinder of a hydraulic service brake system according to a pressure requirement and is transmitted to at least one wheel brakes. Background technique [0003] Motor vehicles are usually equipped with hydraulic service brake systems, in which brake pressure is built up inside the hydraulic medium in the master cylinder and transmitted to the brake cylinders of the wheel brakes, which are passed th...

Claims

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Application Information

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IPC IPC(8): B60T8/88B60T7/12B60T7/10B60T13/74B60T17/22F16D65/28
CPCB60T13/746B60T8/885B60T2270/402B60T17/221B60T7/107B60T2201/06B60T7/122B60T7/08B60T8/88B60T13/74B60T17/22
Inventor M·拜杰恩斯O·胡特M·奥利T·莫伊雷尔斯P·维舍
Owner CONTINENTAL AUTOMOTIVE SYST SHANGHAI
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