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:
Jul. 26, 2022
Filed:
Mar. 22, 2019
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Yoichi Ogura, Shizuoka-ken, JP;
Kunihiko Hayashi, Odawara, JP;
Masatoshi Yano, Hadano, JP;
Yuji Miyoshi, Susono, JP;
Takuya Hirai, Susono, JP;
Tomohiro Shinagawa, Shizuoka-ken, JP;
Ryo Michikawauchi, Numazu, JP;
Hidefumi Aikawa, Shizuoka-ken, JP;
Yu Ofune, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
Abstract
A cooling apparatus of a vehicle driving system for driving a vehicle according to the invention activates a heat pump to cool a hybrid system by cooling medium and flows an engine cooling water in an engine water circulation passage through a condenser to cool the cooling medium by the engine cooling water at the condenser when an engine water circulation condition is satisfied. The engine water circulation condition is a condition that a heat pump activation condition is satisfied, and an engine cooling condition is not satisfied. The heat pump activation condition is a condition that a process of cooling the hybrid system by the cooling medium of the heat pump is requested. The engine cooling condition is a condition that a process of cooling an internal combustion engine by the engine cooling water is requested.