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. 01, 2019
Filed:
Aug. 19, 2016
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kenichi Tsuchida, Nishio, JP;
Toshiaki Hayashi, Toyohashi, JP;
Yuta Seriguchi, Anjo, JP;
Masafumi Takasu, Anjo, JP;
Yoichiro Kimura, Anjo, JP;
Kenichi Ishii, Anjo, JP;
Syuji Moriyama, Nagakute, JP;
Yoshinobu Soga, Toyota, JP;
Hiromitsu Nitani, Okazaki, JP;
Takafumi Inagaki, Toyota, JP;
AISIN AW CO., LTD., Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A hydraulic control device that includes a source pressure generating valve that generates a source pressure; a solenoid valve that can supply the engagement pressure based on the source pressure; and a supply pressure switching valve that can be switched between a first state where the supply pressure switching valve can supply the engagement pressure to the second engagement element and a second state where the supply pressure switching valve can supply the source pressure to the second engagement element, the supply pressure switching valve being in the first state when the solenoid valve is operating normally, and being switched to the second state in case of abnormality in the solenoid valve.