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:
Jun. 21, 2011
Filed:
Aug. 14, 2007
Ippei Yamazaki, Toyota, JP;
Ippei Yamazaki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A first compensation torque T, a second compensation torque Tand a third compensation torque Tare added to a basic assist torque Tas. In this case, the second compensation torque Tand the third compensation torque Tare corrected by multiplying them by a common control gain G that is determined by the steering torque Th and the vehicle speed v. Therefore, since the two compensation control amounts are corrected through multiplication by the common control gain G, no interference occurs between the compensation controls. Besides, when the direction in which the total (T+T) of the pre-correction second compensation torque Tand the pre-correction third compensation torque Tacts is the same direction as the steering torque Th, the multiplication by the control gain G is avoided.