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:
Mar. 31, 2015
Filed:
Sep. 06, 2011
Hiroshi Suzuki, Okazaki, JP;
Hiroshi Suzuki, Okazaki, JP;
JTEKT Corporation, Osaka-Shi, JP;
Abstract
An ECU includes two drive circuits corresponding to the motor coils of two systems independent of each other, and a microcomputer that outputs control signals of two independent systems to the drive circuits. The microcomputer includes a first control signal output portion that outputs the control signal to the drive circuit of the first system by executing an electric current control so as to generate a motor torque that corresponds to the assist force. The microcomputer further includes a second control signal output portion that outputs the control signal to the drive circuit of the second system by executing a position control on the basis of a steering angle command value that is input from a superior ECU via an in-vehicle network so as to change the steering angle of the steering road wheels.