Method and system for controlling engine speed, engine...

Details Method and system for controlling engine speed, engine... Method and system for controlling engine speed, engine...

2006-12-12

2011-12-06

Le, David D (Department: 3655)

Interrelated power delivery controls, including engine control

Clutch control

Regulated clutch engagement

Reexamination Certificate

active

08070653

ABSTRACT:
The present invention broadly comprises a method for controlling engine speed, engine torque, and torque converter output including the steps of applying engine torque to a torque converter and modulating the transferring of the torque to a pump for the torque converter. In some aspects, the torque converter further comprises a pump clutch and the method applies torque to the pump clutch and controllably slips the pump clutch. In some aspects, the method supplies engine torque from an engine with a turbocharger and controllably slips the pump clutch to increase speed and torque for the engine during a launch event for the vehicle or determines a parameter regarding operation of the vehicle and controllably slips the pump clutch responsive to the parameter. The present invention also comprises a method for controlling torque converter output by connecting a clutch between an engine and a torque converter and controllably slipping the clutch.

REFERENCES:
patent: 3822771 (1974-07-01), Audiffred et al.
patent: 6494303 (2002-12-01), Reik et al.
patent: 2004/0166992 (2004-08-01), Buchanan et al.
patent: 2007/0004554 (2007-01-01), Hans et al.

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