System and method for controlling engine idle speed based on...

Details System and method for controlling engine idle speed based on... System and method for controlling engine idle speed based on...

2006-09-12

2006-09-12

Wright, Dirk (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

Reexamination Certificate

active

07104924

ABSTRACT:
A method for controlling engine idle speeds for an internal combustion engine. The method includes operating the engine at a first idle speed when a first device is in a first operational state, and when the first device is in a second operational state and a second device is in a first operational state, and operating the engine at a second idle speed when the first device is in the second operational state and the second device is in a second operational state. The first idle speed is a low idle speed and the second idle speed is a high idle speed that is higher than the first idle speed, and the low idle speed is selected to provide reduced engagement torque to the second device and the high idle speed is selected to provide user desired acceleration performance.

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