The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1996
Filed:
May. 24, 1995
Matthias Baumann, Boblingen, DE;
Gerhard Fischle, Esslingtn, DE;
Mercedes-Benz AG, , DE;
Abstract
The invention provides a process for performing calibration of the wheel speeds of a motor vehicle by periodically calculating and applying correction factors. The instantaneous speed of each wheel is measured periodically, and a vehicle turning rate is determined based on the time derivative of the differential between left and right wheel speeds. Actuation of the vehicle brakes is also detected. According to the invention, a new correction factor is determined only after the following criteria have been satisfied concurrently for a predetermined time period: vehicle speed is above a specified minimum, acceleration is within a specified range, vehicle turning is below a specified limit and the brakes are not actuated. In a second embodiment, vehicle driving torque is used as a criteria in place of acceleration.