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:
Oct. 19, 2004
Filed:
May. 23, 2003
Shoichi Sasaki, Okazaki, JP;
Yoshiaki Ito, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A control unit of the present invention for an electric vehicle capable of being driven using torque from an electric motor generated in response to a torque instruction, comprising an electric motor rotation speed detection and estimation unit for detecting or estimating rotation speed of the electric motor, a drive wheel rotation speed detection and estimation unit for detecting or estimating rotation speed of drive wheels, and a torque instruction compensation unit. The torque instruction compensation unit compensates the torque instruction so as to control vibration of the vehicle based on rotational speed of the electric motor detected or estimated by the electric motor rotation speed detection and estimation unit and drive wheel rotation speed detected or estimated by the drive wheel rotation speed detection and estimation unit.