Invention Grant
- Patent Title: Controller for automatic transmission
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Application No.: US15646388Application Date: 2017-07-11
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Publication No.: US10295050B2Publication Date: 2019-05-21
- Inventor: Keisuke Ota , Ayumu Sagawa , Tomoya Iwami
- 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: JP2016-142308 20160720
- Main IPC: F16H61/04
- IPC: F16H61/04 ; F16H61/02 ; F16H61/682 ; F16H61/686 ; F16H3/66 ; F16H59/40 ; F16H59/42

Abstract:
When a jump downshift via an intermediate shift stage is requested and a rotation speed of an input shaft approaches a synchronous rotation speed of the intermediate shift stage, a target torque phase time when the gear shift via the intermediate shift stage is performed with input switching is set to be shorter than that when the gear shift via the intermediate shift stage is performed without using input switching and torque phase control is performed. Accordingly, it is possible to promptly perform engagement of an engagement-side frictional engagement element at the time of passing through the intermediate shift stage and to rapidly perform the gear shift after passing through the intermediate shift stage.
Public/Granted literature
- US20180023695A1 Controller For Automatic Transmission Public/Granted day:2018-01-25
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