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:
Oct. 27, 1987
Filed:
May. 28, 1985
Jerry L Cage, Granger, IN (US);
Jonathan B Kulp, West Lafayette, IN (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
A control apparatus for a power steering system comprises an electrically actuated flow control valve that varies the power assist available, a speed sensor for generating a signal indicative of vehicle speed, and a selector switch for selecting one of a plurality of power assist control options. The apparatus further includes a microprocessor that controls the electrically actuated flow control valve in response to the signal from the speed sensor and the setting of the selector switch. The apparatus also provides manually selectable power assist that is set by the operator and remains constant independent of variations in vehicle speed. A display provides a visual indication to the operator of the power assist available.