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Method and device for carrying out cleaning operation for braking device of braking system, and motor vehicle system

A braking device and braking system technology, applied in the direction of automatic starting device, brake components, brakes, etc., can solve problems such as deceleration and braking pressure of motor vehicles

Pending Publication Date: 2020-10-30
BAYERISCHE MOTOREN WERKE AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in order to reliably clean the braking surfaces of the braking device, brake pressures that cause significant deceleration of the motor vehicle are generally required

Method used

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  • Method and device for carrying out cleaning operation for braking device of braking system, and motor vehicle system
  • Method and device for carrying out cleaning operation for braking device of braking system, and motor vehicle system
  • Method and device for carrying out cleaning operation for braking device of braking system, and motor vehicle system

Examples

Experimental program
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Embodiment Construction

[0051] figure 1 A schematic diagram of a vehicle system 1 for a motor vehicle is shown. The vehicle system 1 has a brake system B with a brake control unit 2 and one or more brake devices 3 connected thereto ( figure 1 only one is shown). The braking device 3 can be designed in the form of a friction brake, in particular a disc brake.

[0052] The brake device 3 has parts that are movable relative to each other and are pressed against each other with brake pressure to generate friction. In particular, the brake device 3 can have a brake disc 31 and two brake shoes 32 which can be pressed hydraulically against the brake disc 31 . The frictional force generates a braking torque which acts on the wheels connected to the braking device 3 . The brake control unit 2 is designed to predetermine the brake pressure set by the brake actuator 4 . The control takes place in such a way that the brake shoe 32 is pressed against the friction surface of the brake disc 31 by the brake pre...

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Abstract

The invention relates to a method for carrying out a cleaning operation for at least one braking device of a braking system in a motor vehicle, said method having the following steps: a braking pressure is set by components of the braking device in accordance with a predefined braking pressure curve, wherein the braking pressure curve, during the cleaning operation, specifies braking pressures forthe braking device that vary over time; a setpoint motor torque that is to be provided by a drive motor of motor vehicle and that is dependent on a braking effect brought about by the set braking pressure is corrected, the predefined braking pressure curve being selected such that a longitudinal delay of the motor vehicle, which is brought about by the predefined braking pressure curve, can be compensated by a corresponding additional motor torque.

Description

technical field [0001] The invention relates to braking systems for motor vehicles with friction brakes, in particular to measures for cleaning braking surfaces such as brake discs, braking devices in the braking system. Background technique [0002] Due to the open design of friction brakes in motor vehicles, liquids, snow, ice or dirt may deposit on components of the brakes, such as brake discs or other braking surfaces. These deposits have a major impact on braking performance. In particular, the responsiveness of the braking device is significantly impaired by deposits, wherein especially ice deposits on the braking surfaces significantly impair the braking performance. In the case of CSIC discs, the reduction in the performance of the brake device due to deposits is particularly pronounced. [0003] Therefore, cleaning cycles are provided in friction brake devices, whereby deposits are removed from the braking surfaces. During a cleaning cycle, the brake pads are pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12F16D65/00
CPCB60T7/12F16D65/0037B60T2201/124B60T13/662B60T2201/06
Inventor 菲利普·瓦宁格尔托拜厄斯·奥珀曼克里斯蒂安·雷德利克
Owner BAYERISCHE MOTOREN WERKE AG
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