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Method for operating a brake system for motor vehicles, and brake system

A brake system and motor vehicle technology, applied in the direction of brake control system, brake transmission device, brake action activation device, etc., can solve the problems of leakage, pressure supply device determination and positioning, etc., to prevent losses and ensure control The effect of movement

Active Publication Date: 2020-07-24
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In such braking systems, leaks may occur which are so small that they cannot be determined and Locating these leaks

Method used

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  • Method for operating a brake system for motor vehicles, and brake system
  • Method for operating a brake system for motor vehicles, and brake system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 An exemplary braking system is shown. The brake system includes a master brake cylinder 21 with at least one pressure chamber 29 . The master brake cylinder is actuated via a brake pedal 20 and is connected to wheel brakes 24 a , 24 b , 24 c , 24 d via at least one isolation valve 27 . Advantageously, the isolation valve 27 is designed to open when de-energized. Each wheel brake can be individually hydraulically disconnected by switching the assigned inlet valves 25a, 25b, 25c, 25d.

[0028] According to this example, master brake cylinder 21 comprises a single pressure chamber 29 which is connected to brake supply line 40 via isolation valve 27 . The wheel brakes 24a, 24b, 24c and 24d are in turn connected to a brake supply line 40 via inlet valves 25a, 25b, 25c, 25d respectively. Wheel brakes 24 a , 24 b , 24 c , 24 d can be actuated via these connections by means of pressure medium from master brake cylinder 21 .

[0029] The brake system also includes ...

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PUM

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Abstract

The invention relates to a method for operating a brake system for motor vehicles, which comprises a main brake cylinder (21) that can be actuated by means of a brake pedal (20), an electrically controllable pressure generating device (22), a pressure medium storage tank (23) which is in particular under atmospheric pressure and from which the main brake cylinder (21) and the pressure generating device (22) are supplied, and at least two wheel brakes (24a, 24b, 24c, 24d) that can be actuated hydraulically, and at least one inlet valve (25a, 25b, 25c, 25d) per wheel brake that can be actuated electrically. The wheel brakes (24a, 24b, 24c, 24d) can be actuated selectively by means of the main brake cylinder (21) or by means of the pressure generating device (22), the pressure medium storagetank (23) is monitored by a device (30) for determining a level of the pressure medium, the wheel brakes are divided into at least one first group of wheel brakes and one second group of wheel brakes,and the inlet valves (25c, 25d) of the first group of wheel brakes (24c, 24d) are closed if the determined level falls below a first limiting value (s1). The invention further relates to a brake system for carrying out the method.

Description

technical field [0001] The invention relates to a method for operating a brake system of a motor vehicle, the brake system comprising: a master brake cylinder actuatable by means of a brake pedal; an electrically controllable pressure supply device; a pressure medium tank, in particular at atmospheric pressure and from which the master brake cylinder and the pressure supply device are supplied with pressure medium; and at least two hydraulically actuatable wheel brakes and At least one electrically actuatable inlet valve for each wheel brake, wherein the wheel brakes can be actuated by means of the master brake cylinder or by means of the pressure supply device; and the invention relates to a front brake according to claim 11 Braking systems for motor vehicles of the preamble. Background technique [0002] DE 10 2012 219 390 A1 discloses a braking system for a motor vehicle which can be operated in a "brake-by-wire" operating mode, in which the wheel brakes of the motor Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/66
CPCB60T13/146B60T13/662B60T7/042B60T13/686B60T13/745B60Y2400/81B60T8/17B60T13/145B60T13/62B60T17/221B60T17/225B60T2270/402B60T2270/404B60T2270/82
Inventor H·比勒
Owner CONTINENTAL AUTOMOTIVE TECH GMBH