Invention Grant
- Patent Title: Transmission system with clutch bite point learning logic
- Patent Title (中): 传动系统带离合器咬点学习逻辑
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Application No.: US14313063Application Date: 2014-06-24
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Publication No.: US09416874B2Publication Date: 2016-08-16
- Inventor: David H. Vu , Xuefeng Tim Tao , Jayson S. Schwalm , Craig J. Hawkins , Jeryl McIver
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: F16H61/688
- IPC: F16H61/688 ; F16D48/06

Abstract:
A method for learning the bite point of a position-controlled clutch in a vehicle having an engine and a transmission includes commanding an engagement of a clutch fork via a controller when the transmission is in park and the engine is idling. The method also includes controlling an apply position of the clutch via the controller, calculating a clutch torque capacity of the clutch, and measuring the apply position via a position sensor. The apply position is recorded as the clutch bite point when the calculated clutch torque capacity equals a calibrated clutch torque capacity. The transmission is then controlled using the recorded clutch bite point. A system includes the transmission, input clutches, and a controller configured to execute the method. A vehicle includes an engine, the transmission, the position-controlled input clutch, and the controller, as well as a clutch position sensor.
Public/Granted literature
- US20150369364A1 TRANSMISSION SYSTEM WITH CLUTCH BITE POINT LEARNING LOGIC Public/Granted day:2015-12-24
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