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. 31, 2004
Filed:
Feb. 03, 2003
Jun Sakugawa, Gotenba, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A target relative rotation angle of automatic steering is calculated; a target current for assist steering during automatic steering is calculated based on the sum of a torque that inhibits a reaction force of the automatic steering from acting on a steering wheel, a torque that cancels out torque that acts resulting from self-aligning torque of the steered wheels, and a torque according to a steering angle; a target current for assist steering to reduce a steering load on a driver is calculated; a weight of the target current is calculated to increase as the target relative rotation angle increases; and an electric power steering unit is controlled, with a weight sum of the target currents as a final target current.