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. 21, 2018
Filed:
Mar. 08, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Yanqing Liu, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A device includes a road surface input calculating unit that calculates an estimated value of a road surface input to the wheel, by letting an inverse matrix of a product of a vehicle motion model matrix and a wheel speed influencing element model matrix act on a wheel speed of a vehicle. The vehicle motion model matrix represents a mechanical vehicle motion model, and the wheel speed influencing element model matrix using a quantity of influence due to pitch about a center of gravity of a vehicle body, a suspension geometry influence quantity, and a quantity of influence of a change in a rolling radius of the wheel. The device also includes a vehicle body state quantity calculating unit that calculates an estimated value of a vehicle body state quantity by letting the vehicle motion model matrix on the calculated estimated value of the road surface input.