Invention Grant
- Patent Title: Transmission clutch control
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Application No.: US15659913Application Date: 2017-07-26
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Publication No.: US10563712B2Publication Date: 2020-02-18
- Inventor: Joseph F. Kucharski , Diego Campos Venegas , Kimberly Ann Meehan , Bradley Ronald Heuver
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman, P.C.
- Agent David Kelley
- Main IPC: F16H59/46
- IPC: F16H59/46 ; F16D48/06 ; F16H61/02 ; F16H61/686 ; F16H63/30 ; F16D25/0635 ; F16D25/10 ; F16D48/02 ; F16H61/04

Abstract:
A transmission includes at least one shift element for which both the apply pressure and the release pressure are actively controlled. A controller adjusts the torque capacity of the shift element by varying the apply pressure and the release pressure in a coordinated fashion. During particular events, such as a shift event with the shift element as oncoming element or holding element, both the apply pressure and the release pressure are monotonically increased, mitigating the effect of hysteresis.
Public/Granted literature
- US20190032777A1 TRANSMISSION CLUTCH CONTROL Public/Granted day:2019-01-31
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