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:
Apr. 14, 2015
Filed:
Dec. 24, 2013
Masafumi Yamamoto, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Koichi Okuda, Toyota, JP;
Keita Imai, Toyota, JP;
Keisuke Omuro, Toyota, JP;
Masafumi Yamamoto, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Koichi Okuda, Toyota, JP;
Keita Imai, Toyota, JP;
Keisuke Omuro, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A vehicle using a first MG, a second MG, and an engine as drive sources includes an electric oil pump, a mechanical oil pump driven by power of the engine, and a hydraulic circuit. The hydraulic circuit includes first oil passages for supplying oil to the first MG, a second oil passage for supplying oil to the second MG, a switch-over valve capable of switching over states of communication of the first oil passage, and a switch control valve that outputs pilot hydraulic pressure to the switch-over valve. States of the switch-over valve are switched over in accordance with hydraulic pressure from the switch control valve and hydraulic pressure from the mechanical pump.