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:
Dec. 07, 2010
Filed:
Sep. 30, 2008
Shinichiro Joe, Yokohama, JP;
Yoshitaka Deguchi, Yokohama, JP;
Yung-hsiang Judy Hsu, Stanford, CA (US);
Shad Mitchell Laws, Palo Alto, CA (US);
Joseph Christian Gerdes, Los Altos, CA (US);
Shinichiro Joe, Yokohama, JP;
Yoshitaka Deguchi, Yokohama, JP;
Yung-Hsiang Judy Hsu, Stanford, CA (US);
Shad Mitchell Laws, Palo Alto, CA (US);
Joseph Christian Gerdes, Los Altos, CA (US);
Nissan Motor Co., Ltd., Yokohama-shi, JP;
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
A tire state estimator includes a lateral force upper limit estimating section, a lateral force estimating section, and a tire slip angle estimating section. The lateral force upper limit estimating section calculates an estimated tire lateral force upper limit, on a basis of an estimated tire slip angle and a measured tire self aligning torque. The lateral force estimating section calculates an estimated tire lateral force, on a basis of the estimated tire lateral force upper limit calculated by the lateral force upper limit estimating section and the estimated tire slip angle. The tire slip angle estimating section calculates the estimated tire slip angle, on a basis of the estimated tire lateral force calculated by the lateral force estimating section and a measured vehicle state.