US Patent 7322438 Control apparatus for an electrically driven power steering

Patent 7322438 was granted and assigned to Denso on January, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Denso

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73224380

Date of Patent

January 29, 2008

Patent Application Number

108786170

Date Filed

June 29, 2004

Patent Primary Examiner

‌

Ruth Ilan

Patent abstract

An electrically driven power steering control apparatus for a vehicle gives a steering assist torque to a steering mechanism by supplying electric power to an electrically driven motor based on a steering operation made by a driver. This control apparatus detects tiredness of a driver, and restricts an operation of the electrically driven motor based on the detected tiredness of a driver.