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Method for operating a brake system, and brake system

A kind of braking equipment and brake technology, applied in the direction of brake control system, brake transmission device, brake, etc., to achieve the effect of low cost

Active Publication Date: 2014-02-26
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this application, there is no more detailed description of how the adjustment or adjustment of the predetermined setpoint value of the pressure of the pressure supply device is to be carried out
In particular it is not mentioned how to check the adjusted brake pressure if the pressure sensor fails

Method used

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

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A schematic diagram of an electrohydraulic brake system for adjustable wheels of a hydraulically braked vehicle is shown schematically in . The brake system comprises a pressure supply device 20 whose pressure chamber 4 is connected via a hydraulic connecting line 5 to hydraulically actuatable wheel brakes 9 . An inlet valve 6 , for example normally open, is arranged between pressure chamber 4 and wheel brake 9 . The wheel brakes 9 can be connected via a return line 10 to a pressure medium storage container 11 . A normally closed outlet valve 7 , for example, is advantageously arranged in the return line 10 . For additional suction of pressure medium into the pressure chamber 4 of the pressure supply device 20 , the pressure chamber 4 is connected to a pressure medium storage container 11 . According to an example, a non-return valve opening in the direction of the pressure supply device 20 is arranged in the hydraulic line 12 between the pressure chamber 4 ...

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Abstract

The invention relates to a method for operating a brake system, in particular for motor vehicles, comprising an electrically controllable pressure supplying device (20) for hydraulically actuating at least one brake (9), in particular a wheel brake. The pressure supplying device (20) comprises a cylinder-piston arrangement with a hydraulic pressure chamber (4), the piston (3) of the cylinder-piston arrangement being movable by an electromechanical actuator (1, 2) in order to generate a specifiable target pressure (PV, Soll) in the hydraulic pressure chamber (4). An actuator torque (MAkt), in particular a motor torque, and an actuator position (fAkt), in particular a motor angular position, of the electromechanical actuator (1, 2) are ascertained, and a pressure value (PV, Est, PV, IstB, PV, IstC) for the pressure (PV) in the hydraulic pressure chamber (4) is determined (30) using the actuator torque (MAkt) and the actuator position (fAkt) taking into consideration a pressure model.

Description

technical field [0001] The invention relates to a method for operating a brake system according to the preamble of claim 1 and a brake system according to the preamble of claim 14 . Background technique [0002] In motor vehicle technology, "brake-by-wire" braking devices are becoming more and more popular. Such a brake system usually comprises, in addition to a master brake cylinder actuatable by the driver of the vehicle, an electrically controllable pressure supply, by means of which in the "brake-by-wire" operating mode the wheel brakes or Operation of the master brake cylinder. In order to convey a suitable pedal feel to the driver of the vehicle in the "brake-by-wire" operating mode, the brake system usually includes a brake pedal feel simulator. In such a braking system, the wheel brakes can also be actuated on the basis of electronic signals without active assistance from the driver of the vehicle. Such an electronic signal can be output, for example, by an electr...

Claims

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Application Information

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IPC IPC(8): B60T13/74
CPCB60T2270/402B60T8/17B60T2270/82B60T13/745B60T8/326B60T13/58
Inventor J·博姆
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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