Patent · US Active

Method and apparatus for calibrating wheel speeds

US8336364B2 · kind B2 · utility

2Cited by

12References

9Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Tobias Munko · Hannover, DE
Axel Stender · Hameln, DE
Gerhard Ruhnau · Hannover, DE
Ingo Tha · Hannover, DE

Key dates

Filing date	Feb 4, 2009
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Aug 27, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60W2300/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for calibrating wheel speed signals measured by wheel rpm sensors in a vehicle equipped with at least one longitudinal acceleration sensor integrates the signal of the longitudinal acceleration sensor during the acceleration or deceleration phases of the vehicle, and the resulting vehicle speed signal is compared against the signals of the individual wheel rpm sensors. A determination is made as to whether a deviation that may exist for a wheel lies within a predefined tolerance range. If a deviation falls outside of the tolerance range, the parameterized tire circumference of the associated wheel is adaptively recalibrated until the deviation falls within the tolerance range.

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