Invention Grant
- Patent Title: Vehicle drive device
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Application No.: US17680944Application Date: 2022-02-25
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Publication No.: US11618311B2Publication Date: 2023-04-04
- Inventor: Atsushi Tabata , Koichi Okuda , Koji Takaira , Yuki Makino , Akinori Homan , Yosuke Akiyama , Akira Ijichi , Kunihiko Usui
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Oliff PLC
- Priority: JPJP2021-032003 20210301
- Main IPC: B60K6/365
- IPC: B60K6/365 ; B60K6/52 ; B60K17/342 ; F16H48/32 ; F16H61/12 ; F16H48/22 ; B60K17/346 ; B60K17/356

Abstract:
A vehicle drive device includes: a brake that is provided with a plurality of friction plates, a first piston and a second piston, and a first piston hydraulic chamber and a second piston hydraulic chamber, and selectively fixes the third rotating element to a fixing member; a hydraulic control circuit that controls supply of the hydraulic pressure to the first piston hydraulic chamber and the second piston hydraulic chamber; and a control device. The control device controls the hydraulic control circuit such that the hydraulic pressure is supplied to the first piston hydraulic chamber and the second piston hydraulic chamber when the first traveling mode is set, and controls the hydraulic control circuit such that the hydraulic pressure is supplied only to one of the first piston hydraulic chamber and the second piston hydraulic chamber when the second traveling mode is set.
Public/Granted literature
- US20220274478A1 VEHICLE DRIVE DEVICE Public/Granted day:2022-09-01
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