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:
Jun. 14, 2005
Filed:
Mar. 07, 2003
Hidetoshi Suzuki, Kanagawa, JP;
Kouichi Shimizu, Kanagawa, JP;
Tatsuya Kamata, Kanagawa, JP;
Keiji Kadota, Kanagawa, JP;
Keigo Nishio, Kanagawa, JP;
Kimitaka Nakamura, Tochigi, JP;
Hidetoshi Suzuki, Kanagawa, JP;
Kouichi Shimizu, Kanagawa, JP;
Tatsuya Kamata, Kanagawa, JP;
Keiji Kadota, Kanagawa, JP;
Keigo Nishio, Kanagawa, JP;
Kimitaka Nakamura, Tochigi, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A vehicle powertrain includes an electric motor () and a clutch () between the electric motor and a motor driven road wheel (L,R). Powertrain play between the electric motor () and the road wheel is eliminated upon determination that powertrain play elimination (PPE) is needed for motor torque transmission to the motor driven road wheel. The PPE includes controlling engagement of the clutch and regulating the electric motor to produce a very small amount of motor torque required for PPE.