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:
Jan. 23, 2007
Filed:
Apr. 05, 2005
Takayuki Kifuku, Tokyo, JP;
Hiroyuki Kozuki, Tokyo, JP;
Yasuaki Hori, Tokyo, JP;
Itsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A steering control apparatus of a simple configuration is adaptable so as to construct a redundant system from an input to an output system at low cost in a reliable manner. A torque sensor detects a steering torque, and a motor () provides torque to a steering system. A motor drive circuit () drives the motor, and a steering control section () calculates at least a target current for the motor based on the steering torque. A motor control section () provides an instruction to the motor drive circuit () based on the target current. A steering control verification section () verifies an operation of the steering control section () based on the steering torque and the target current. A motor control verification section () verifies an operation of the motor control section () based on a predetermined state quantity of the motor drive circuit () or the motor ().