Method for identifying vehicle wheels having low tire pressure

US7870780B2 · kind B2 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Andre Bork · Hannover, DE
• Tobias Munko · Hannover, DE
• Detlef Schmidt · Schaumburg, US

Key dates

• Filing date: Dec 15, 2008
• Grant date: Jan 18, 2011
• Expiry date: Jul 21, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60C23/061
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for identifying low-pressure tires includes determining the number of revolutions of each wheel over a preselected driving distance, and comparing crosswise by summing the number of revolutions of the diagonally opposite front right/rear left and front left/rear right wheels and taking the difference between the sums, a diagonal containing a low-pressure tire being identifiable via the sign of the difference between the diagonals. A further comparison for each side of the vehicle is effected by summing the revolutions of the front left/rear left side and front right/rear right side wheels and comparing the difference between the sums, the side containing a low-pressure tire being identifiable via the sign of the difference between the sides. The difference between diagonals is compared with a low-pressure threshold value. If the threshold is exceeded, the signs of the difference between diagonals and between sides are logically combined to identify the low-pressure tire.