- Patent Title: Control apparatus for vehicle drive-force transmitting apparatus
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Application No.: US16374797Application Date: 2019-04-04
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Publication No.: US10851890B2Publication Date: 2020-12-01
- Inventor: Kunio Hattori , Taichi Washio , Takuro Shimazu
- 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: JP2018-078763 20180416
- Main IPC: F16H61/12
- IPC: F16H61/12 ; F16H37/08 ; F16H9/18 ; F16H61/662

Abstract:
A control apparatus for a vehicle drive-force transmitting apparatus including a gear mechanism and a continuously-variable transmission mechanism and defining first and second drive-force transmitting paths. When the continuously-variable transmission mechanism is in a failure state in which an actual gear ratio of the continuously-variable transmission mechanism is not the highest gear ratio as a target gear ratio, the control apparatus sets the target gear ratio to a transient target gear ratio that is gradually changed toward the highest gear ratio, for causing the actual gear ratio to be gradually changed toward the highest gear ratio. A rate of change of the transient target gear ratio is higher in a state in which a drive force is transmitted through the first drive-force transmitting path by the gear mechanism, than in a state in which the drive force is transmitted through the second drive-force transmitting path by the continuously-variable transmission mechanism.
Public/Granted literature
- US20190316674A1 CONTROL APPARATUS FOR VEHICLE DRIVE-FORCE TRANSMITTING APPARATUS Public/Granted day:2019-10-17
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