Automotive powertrain control

Details Automotive powertrain control Automotive powertrain control

1996-12-09

1999-01-05

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477120, 477904, B60K 4104

Patent

active

058555331

ABSTRACT:
Engine speed control during garage shift maneuvers of a transmission coupled, via a transmission input shaft, to a driven turbine of a hydrodynamic converter, the driven turbine fluidically coupled to a driving pump of the converter, the pump coupled to an engine output shaft, wherein engine output torque is controlled in response to a deviation in turbine acceleration away from a target turbine acceleration, to minimize rate of change in turbine acceleration (jerk) during the garage shift maneuver, so as to reject engine torque load changes that may result in undesirable engine speed variation.

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patent: 5470290 (1995-11-01), Minowa et al.
patent: 5514047 (1996-05-01), Tibbles et al.
patent: 5681238 (1997-10-01), Minowa et al.

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