Invention Grant
- Patent Title: Method for controlling the transfer of torque of a force-fitting shift element
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Application No.: US15179984Application Date: 2016-06-11
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Publication No.: US09709159B2Publication Date: 2017-07-18
- Inventor: Christoph Köhler , Frank Deprez
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Dority & Manning, P.A.
- Priority: DE102015210670 20150611
- Main IPC: F16H61/02
- IPC: F16H61/02 ; F16H61/00 ; B60K6/387 ; B60K6/40 ; B60K6/46 ; F16D48/06 ; F16H63/46 ; F16H61/06
Abstract:
A method for controlling torque transfer of a force-fitting shift element includes controlling a closing pressure at least temporarily upon presence of a closing request for the force-fitting shift element and when a prevailing system pressure of the hydraulic circuit is above a threshold value for the system pressure. The closing pressure is controlled in a manner that is different than upon the presence of the closing request for the force-fitting shift element and when the prevailing system pressure is below the threshold value for the system pressure.
Public/Granted literature
- US20160363215A1 Method for controlling the transfer of torque of a force-fitting shift element Public/Granted day:2016-12-15
Information query
