Invention Grant
- Patent Title: Vehicle drive device
- Patent Title (中): 车辆驱动装置
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Application No.: US14726961Application Date: 2015-06-01
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Publication No.: US09458928B2Publication Date: 2016-10-04
- Inventor: Takaho Kawakami , Tomoaki Yanagida , Kenta Kimura
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P
- Priority: JP2014-114412 20140602
- Main IPC: F16H3/66
- IPC: F16H3/66 ; F16H61/00 ; F02B67/06

Abstract:
A vehicle drive device includes an oil pump, a first one-way clutch, a first transmission path configured to transmit a driving force generated in an engine to the oil pump via the first one-way clutch, a second one-way clutch, a second transmission path configured to transmit a driving force from an output shaft of a transmission portion to the oil pump via the second one-way clutch, and a power transmission interruption device configured to interrupt transmission of the driving force generated in the engine to a drive wheel. A speed ratio between the engine and the oil pump in the first transmission path is set to be smaller than a speed ratio obtained by multiplying the smallest speed ratio of the transmission portion by a speed ratio between the transmission portion and the oil pump in the second transmission path.
Public/Granted literature
- US20150345619A1 VEHICLE DRIVE DEVICE Public/Granted day:2015-12-03
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