Engine control strategy as a function of gear selector mechanism

Details Engine control strategy as a function of gear selector mechanism Engine control strategy as a function of gear selector mechanism

1997-07-22

1998-11-17

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477115, 701 54, B60K 4106

Patent

active

058368515

ABSTRACT:
An engine control system is provided with two sets of gain factors for use in conjunction with a PID control system. When a gear selection mechanism is in a steady state, a first set of gain factors is used so that the engine control system is less responsive and the engine operates more smoothly. When the gear selection mechanism is being moved from a neutral position to either forward or reverse gear or vice versa, a second set of gain factors are substituted for the first set so that the engine control system will be more responsive and the sudden change in the load on the engine will not cause a stall condition or a sudden increase in the RPM. This technique can typically be employed in a proportional, integral, and differential (PID) control system, but alternative control systems can also benefit from its use.

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patent: 5788602 (1998-08-01), Pennese et al.

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