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:
Nov. 11, 1986
Filed:
Mar. 19, 1985
Applicant:
Inventors:
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180 791 ; 7386233 ;
Abstract
In an electric power steering apparatus including an input shaft, an output shaft and an electric motor for imparting a steering torque to the output shaft, a torque sensor includes a torsion bar provided between the input shaft and the output shaft. A movable member converts the output of the torsion bar into an axial movement of the same. The axial movement varies an electrostatic capacitance formed between an end of the movable member and an electrode plate held stationary, and the variation of the capacitance is utilized for controlling the electric motor in driving the output shaft.