Patent · US Expired

Method and device for monitoring the tire air pressure of the wheels of an automobile

US6092415A · kind A · utility

15Cited by

3References

12Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Gunnar Borenius · Esslingen am Neckar, DE
Fritz Braun · Munich, DE
Heiko Gruenberg · Otze, DE

Key dates

Filing date	Feb 25, 1999
Grant date	Jul 25, 2000
Priority date	—
Expiry date	Feb 25, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60C23/061
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

In a method for monitoring tire air pressure of the wheels of an automobile, longitudinal force of the tires-slip test data pairs are measured and recorded for at least one wheel, while the automobile is being driven. A corresponding evaluation unit determines a compensation curve for the recorded longitudinal force of the tires-slip test data pairs, along with an associated offset value based on a zero point in a longitudinal force of the tires-slip performance graph. From the offset value, the respective wheel radius relationship between at least one driven and one non-driven wheel can be calculated, and from this the relative tire pressure of the wheels can be determined.

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