Patent · US Expired

Method for correcting a vehicle reference speed

US6224171A · kind A · utility

3Cited by

5References

5Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Henrich Riedemann · Wattenscheid, DE
Gerald Stanusch · Harsum, DE
Ingo Tha · Hannover, DE
Thomas Wolf · Barsinghausen, DE

Key dates

Filing date	Oct 27, 1998
Grant date	May 1, 2001
Priority date	—
Expiry date	Oct 27, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T2250/04
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method applicable for use in wheeled vehicles permits correction of a vehicle reference speed following a real or apparent deceleration indicated by wheel speed signals, caused for example by a fault in wheel sensing. In order to prevent a brief period of insufficient braking of the vehicle due to an erroneously high vehicle reference speed during a subsequent ABS regulation, wheel slip regulating signals are monitored. If a wheel slip regulating signal appears for a given number of wheels and lasts for a longer period than a predetermined time, an intervention in the normal regulating process is made, and the vehicle reference speed is set to the value of the wheel speed of the wheels associated with a wheel slip regulating signal.

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