Control system for engine and automatic transmission

Details Control system for engine and automatic transmission Control system for engine and automatic transmission

1992-10-08

1994-03-08

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

B60K 4100

Patent

active

052918025

ABSTRACT:
A control system for the engine and the automatic transmission of the automotive vehicle is arranged such that the torque of the engine is reduced by delaying the timing of ignition at the time of a shift of the automatic transmission with a multi-stage shift mechanism. The amount of the absorbed inertia at the time of the shift is computed as an amount corresponding to changes of the numbers of revolutions on the input side of the multi-stage shift mechanism prior to and subsequent to the shift thereof. The timing of ignition is so adapted as to be delayed in accordance with the amount of the resulting amount of the absorbed inertia. Preferably, the control amount for the torque to be reduced is computed in accordance with the torque of the engine at the time of the shift, and a control amount for the final torque to be reduced is given on the basis of the control amount for the torque to be reduced and the amount of the absorbed inertia, thereby delaying the timing of ignition in accordance with the control amount for the final torque to be reduced.

REFERENCES:
patent: 4355550 (1982-10-01), Will et al.
patent: 4403527 (1983-09-01), Mohl et al.
patent: 4770064 (1988-09-01), Kuerschner
patent: 4792902 (1988-12-01), Hrovat et al.
patent: 4800781 (1989-01-01), Yasue et al.
patent: 5038287 (1991-08-01), Taniguchi et al.
patent: 5168776 (1992-12-01), Otsubo et al.
patent: 5188005 (1993-02-01), Sankpal et al.

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