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:
Sep. 25, 2012
Filed:
May. 20, 2008
Applicants:
Tadafumi Yoshida, Toyota, JP;
Masaki Yoshino, Toyota, JP;
Yutaka Hotta, Chiryu, JP;
Inventors:
Assignees:
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Aisin AW Co., Ltd., Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vehicle drive system includes a battery, motor generators driving the vehicle using electric power from the battery or driven by the vehicle, a PCU integrated with the motor generators, having inverters and controlling the motor generator, cooling water cooling inverters, and oil cooling motor generators. The PCU includes a smoothing capacitor and a filter capacitor provided electrically closer to the battery than the smoothing capacitor. Here, the smoothing capacitor is cooled by the cooing water, while the filter capacitor is cooled by the oil.