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:
Aug. 10, 2004
Filed:
Dec. 11, 2002
Fritz P. E. Dilger, Royal Oak, MI (US);
Continental Teves, Inc., Auburn Hills, MI (US);
Abstract
A method is disclosed for determining the steering center of a vehicle. The algorithm involves supplying power to a controller after ignition-off to save the steering wheel angle value that is stored in the controller's non-volatile memory. At ignition-on, the steering wheel angle value that was stored in the controller's non-volatile memory is retrieved and compared to a recently calculated probable steering wheel angle value. The recently calculated probable steering wheel angle value is calculated based on an offset compensated value of the vehicle's yaw rate and offset compensated value of the vehicle's lateral acceleration. If the difference between the value stored in the volatile memory and the recently calculated probable steering wheel angle value are within a predetermined range, the value stored in the non-volatile memory will continue to be used.