Patent · US Active

Method and device for the calibration or diagnosis of a motor vehicle brake system having a cyclically operated pump

US8301331B2 · kind B2 · utility

2Cited by

27References

14Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Faouzi Attallah · Darmstadt, DE
Tobias Scheller · Hofbieber, DE
Tom Robert · Kassel, DE

Key dates

Filing date	Oct 22, 2008
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Feb 9, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T8/4059
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for the calibration or diagnosis of a motor vehicle brake system having a cyclically operated pump. At least one parameter (URPOff), representing the electromotor force of the reference pump, is repeatedly ascertained during operation of a reference pump under defined guidelines. A statistical characteristic variable (URPOff) is derived from the values of parameter (URPOff) ascertained for the reference pump. Parameter (UBPOff) is ascertained under a corresponding guideline during operation of an operating pump. Corresponding statistical characteristic variable (UBPOff) is derived from the values of parameter (UBPOff) ascertained for the operating pump. At least one ratio number is calculated as a measure of the deviation of the operating behavior of the operating pump from the operating behavior of the reference pump from the characteristic variable (URPOff) calculated for the reference pump and the characteristic variable (UBPOff) calculated for the operating pump.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.