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. 15, 2019
Filed:
Aug. 20, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Daisuke Tokozakura, Susono, JP;
Kazuya Arakawa, Fujinomiya, JP;
Takahiro Shiina, Numazu, JP;
Satoshi Tominaga, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A lubrication control device for a transmission includes an oil pump, a heat exchanger, an oil quantity control valve, a first bypass oil passage, and an electronic control unit. The heat exchanger is connected between the oil pump and a lubricated portion of the transmission. The oil quantity control valve includes an inflow port, a supply port, and a discharge port. The supply port is connected to the heat exchanger. The oil quantity control valve is configured to control a supply oil quantity as a flow rate of the oil flowing from the inflow port to the supply port and discharge a residue of the oil from the discharge port. The first bypass oil passage is connected to the discharge port. The electronic control unit is configured to adjust the oil quantity control valve such that the supply oil quantity increases as a temperature of the oil increases.