Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott R. Verna0
Bryan J. Williams0
David W. Wright0
Date of Patent
March 22, 2011
0Patent Application Number
113000870
Date Filed
December 14, 2005
0Patent Primary Examiner
Patent abstract
A method for controlling trapped air in a clutch of an automatic clutch-to-clutch transmission includes, calculating a pulse on time based on a clutch volume and adaptive convergence. A pulse off time is calculated based on a temperature of transmission fluid. A pulse number is calculated based on the temperature of transmission fluid. A maximum pressure is commanded to the clutch based on the pulse on time and a minimum pressure is then commanded to the clutch based on the pulse off time. A pulse counter is incremented when the pulse off time expires. The steps of commanding maximum pressure, then commanding minimum pressure, and incrementing the pulse counter are repeated until the pulse counter equals a desired pulse number.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
