192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Patent
1986-07-17
1987-11-17
Bonce, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
192 0033, 192 0076, 192 331, 3644241, F16D 43284, F16D 4702, B60K 4102
Patent
active
047067900
ABSTRACT:
The net engagement pressure of a torque converter clutch having a negative slope capacity vs. slip characteristic is controlled to stably regulate the clutch slip, and thereby isolate engine torque perturbations from the vehicle driveline. The pressure is scheduled with a proportional term responsive to transient slip speed deviations and an integral term responsive to steady state slip speed deviations. Feed forward terms responsive to the throttle changes which force steady state slip speed deviations act to increase the speed of response of the integral term.
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Lockhart Bruce D.
McCulloch Dean E.
Tierney Gordon L.
Wehner Cyrus A.
Bonce Rodney H.
General Motors Corporation
Navarre Mark A.
Testardi David A.
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