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:
Feb. 26, 2002
Filed:
Jan. 16, 2001
Hongtei Eric Tseng, Canton, MI (US);
John Yester, Bloomfield Hills, MI (US);
Ming Lang Kuang, Canton, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A method for determining road bank angle in vehicle includes a lateral acceleration sensor ( ) that generates a first signal corresponding to lateral acceleration. A yaw rate sensor ( ) generates a second signal corresponding to a yaw rate signal. A controller ( ) coupled to the sensors performs the step of calculating a first bank angle estimate dependent on the first signal, calculating a second bank angle estimate dependent on the second signal, calculating a third bank angle estimate dependent on both the first and second signals, calculating a dynamic compensation factor based as a function of the first bank angle estimate, the second bank angle estimate and the third bank angle estimate, decomposing the third bank angle estimate into a plurality of third bank angle frequency layers, reducing each of the plurality of third bank angle frequency layers in response to a multiplicative factor, said multiplicative factor being a function of the dynamic compensation factor to obtain a plurality of reduced third bank angles, and calculating a final bank angle bias estimate based on a sum of the plurality of reduced third bank angles.