US 7,497,800 B2
	Method of operating a vehicle electric motor
Takatoshi Sakata, Yamatotakada (Japan); Yasuhiro Yukitake, Nara (Japan); Yasuo Asai, Kashiwara (Japan); and Kouji Yoshinami, Kashiba (Japan)
Assigned to JTEKT Co., Ltd., Osaka (Japan)
Appl. No. 10/573,296 PCT Filed Sep. 22, 2004, PCT No. PCT/JP2004/013778 § 371(c)(1), (2), (4) Date May 15, 2006, PCT Pub. No. WO2005/031193, PCT Pub. Date Apr. 07, 2005.
Claims priority of application No. 2003-335843 (JP), filed on Sep. 26, 2003.
Prior Publication US 2007/0065296 A1, Mar. 22, 2007
Int. Cl. F16H 38/00 (2006.01)

U.S. Cl. 475—136

8 Claims

1. A method of operating a vehicle electric motor which drives driven equipment via a rotation shaft that is pivotally supported by a rolling bearing, the method comprising the step of rotating said vehicle electric motor at a very low speed or in an intermittent manner when a vehicle is traveling and said driven equipment is not being used for operation of the vehicle.