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. 03, 2009
Filed:
Sep. 22, 2004
Takatoshi Sakata, Yamatotakada, JP;
Yasuhiro Yukitake, Nara, JP;
Yasuo Asai, Kashiwara, JP;
Kouji Yoshinami, Kashiba, JP;
Takatoshi Sakata, Yamatotakada, JP;
Yasuhiro Yukitake, Nara, JP;
Yasuo Asai, Kashiwara, JP;
Kouji Yoshinami, Kashiba, JP;
JTEKT Co., Ltd., Osaka, JP;
Abstract
In a method of operating an electric motor which drives an auxiliary oil pump for supplying a hydraulic pressure of an ATF to a transmission, only at an idle stop of an engine via a rotation shaft pivotally supported by ball bearings, the electric motor is rotated at a very low speed or in an intermittent manner when an automobile is traveling and the auxiliary oil pump is not used. According to the configuration, the electric motor is slightly rotated during when the automobile is traveling, whereby impressions are prevented from being formed on the ball bearings.