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:
Mar. 16, 1993
Filed:
Jun. 18, 1991
Koji Fujio, Kure, JP;
Yutaka Tagashira, Hiroshima, JP;
Hiroshi Ogawa, Hiroshima, JP;
Hirotaka Kanazawa, Hiroshima, JP;
Hiroki Yoshioka, Higashihiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A reference position detection method of a vehicle rear wheel steering apparatus in the present invention, is provided with steps of setting an input shaft and the yoke assembly at arbitrary angular positions rotating the input shaft by an arbitrary angle to pass a neutral angular position measuring a rotational angle .theta. of the input shaft and a moving amount .delta.1 of an output rod assembly upon rotation of the input shaft rotating the yoke assembly to pass a neutral angular position so that the output rod assembly is stroke-moved by a moving amount -.delta.1 from a stroke position defined by the moving amount .delta.1 of the output rod assembly rotating the input shaft by an angle -.theta. after rotating the yoke assembly, and measuring a moving amount .delta.2 of the output rod assembly; and determining, as a reference position of the yoke assembly, an angular position obtained by rotating the yoke assembly from the rotated state of the input shaft so that the output rod assembly is displaced by -.delta.2.sup.2 /(.delta.1+.delta.2).