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. 16, 2007
Filed:
Mar. 11, 2005
Method and apparatus for detecting a failed temperature sensor in an electric assist steering system
Abbas A. Fardoun, Dearborn, MI (US);
Joseph D. Miller, Farmington Hills, MI (US);
Abbas A. Fardoun, Dearborn, MI (US);
Joseph D. Miller, Farmington Hills, MI (US);
TRW Automotive U.S. LLC, Livonia, MI (US);
Abstract
A method and system are provided for controlling an electric assist motor in a vehicle steering system during an enablement of an overuse algorithm. Electric power is provided to the electric assist motor of the vehicle steering system via a switching circuit. Temperature of one of at least electric assist motor and power driving circuitry that provides power to the electric assist motor is sensed. A determination is made whether the sensed temperature of the one of at least electric assist motor and power driving circuitry is increasing over a predetermined period of time. The electric power provided to electric assist motor is reduced in response to a lack of increase in said sensed temperature.