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:
Jul. 12, 2005
Filed:
Dec. 12, 2003
Tokuhisa Takeuchi, Chita-gun, JP;
Takashi Takata, Nagoya, JP;
Nobukazu Kuribayashi, Kariya, JP;
Masahiko Sugaya, Anjo, JP;
Tokuhisa Takeuchi, Chita-gun, JP;
Takashi Takata, Nagoya, JP;
Nobukazu Kuribayashi, Kariya, JP;
Masahiko Sugaya, Anjo, JP;
DENSO Corporation, Kariya, JP;
Abstract
In determining a starting point of a motor of an electric actuator during its initialization procedure, when a rotation angle sensor detects pulse signals in a certain initialization pattern, power supply to the motor is stopped by the control of a motor drive circuit. This electrical control of motor rotation enables the initialization procedure of the actuator to be carried out without using mechanical restriction means for locking purposes, and the influence of variations in the deflection amount of any stoppers is eliminated. The precision in determining the starting point in the initialization procedure is thus improved.