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:
Oct. 09, 2012
Filed:
Dec. 14, 2009
Haruki Shirasaka, Anjo, JP;
Noriyuki Tani, Toyota, JP;
Yuji Iwatsuru, Anjo, JP;
Masayoshi Kato, Anjo, JP;
Takuji Akiyama, Anjo, JP;
Shuichi Takeda, Anjo, JP;
Masahiro Ito, Anjo, JP;
Haruki Shirasaka, Anjo, JP;
Noriyuki Tani, Toyota, JP;
Yuji Iwatsuru, Anjo, JP;
Masayoshi Kato, Anjo, JP;
Takuji Akiyama, Anjo, JP;
Shuichi Takeda, Anjo, JP;
Masahiro Ito, Anjo, JP;
Aisin AW Co., Ltd., Aichi, JP;
Abstract
A vehicle drive apparatus for supplying oil pressure to a hydraulic servo at restart of an engine. The vehicle drive apparatus includes an accumulator that accumulates the oil pressure, an electromagnetic switching valve that retains oil pressure of the accumulator when an oil pump is stopped, a switching valve control unit that controls opening and closing of the electromagnetic switching valve, and a restart determining unit that determines whether or not to restart the vehicle drive source from a stopped state. When it is determined by the restart determining unit to restart the vehicle drive source, the switching valve control unit is started so as to supply the oil pressure accumulated in the accumulator to the hydraulic servo. As a result, engine friction engagement elements are quickly engaged to enable starting of a vehicle.