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:
Aug. 05, 2008
Filed:
Sep. 18, 2003
Takahiro Urakabe, Tokyo, JP;
Tatsuya Okuda, Tokyo, JP;
Yoshikazu Tsunoda, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention provides a power unit for an automobile including a motorfor starting an engine by transmitting a power thereto and generating a power by receiving a power from the engine during rotation thereof, a power converting circuitfor transmitting a power to the motor, a battery, an energy storing sourcefor storing energy, and a DC/DC converter including at least two switching elements, charging the energy storing source, and recovering energy in the energy storing sourceto the battery. Since the switch provided in the DC/DC converter is normally turned on when the motorgenerates power by receiving a power from the engine and charges the batterythrough the power converting circuitand the DC/DC converter, generation of heat from the DC/DC converter circuit part can be suppressed greatly.