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:
Dec. 01, 2009
Filed:
Dec. 23, 2005
Tomoyuki Hanyu, Yokohama, JP;
Kazuhiro Takeda, Yokosuka, JP;
Yuki Kosaka, Chigasaki, JP;
Hiraku Ooba, Yokohama, JP;
Hiroshi Iwano, Yokohama, JP;
Tomoyuki Hanyu, Yokohama, JP;
Kazuhiro Takeda, Yokosuka, JP;
Yuki Kosaka, Chigasaki, JP;
Hiraku Ooba, Yokohama, JP;
Hiroshi Iwano, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
To protect the inverters and motor generators from damage caused by abnormal currents resulting from the sudden changes in voltage that occur when changing the battery voltage. A vehicle equipped with an engineand first and second motor-generatorsandthat can generate electricity by being driven by engineor from regeneration of kinetic energy of the vehicle, power supply linethat connects first motor-generatorwith second motor-generatorand batteryconnected via switchin the middle of electric power supply lineWhen changing the voltage of batteryswitchis opened before the voltage of batteryis changed, and switchis closed only after one of the motor generatorsandis caused to generate electric power or propel the vehicle in order to reduce the difference in voltage between power supply lineand battery