Powertrain control apparatus for improving fuel economy

Details Powertrain control apparatus for improving fuel economy Powertrain control apparatus for improving fuel economy

1988-03-28

1990-03-06

Wright, Dirk

Machine element or mechanism

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

Preselected indexed position

74866, 3644241, B60K 4118

Patent

active

049055445

ABSTRACT:
Engine and transmission control apparatus for use in passenger cars and other applications includes a throttle-and-gear-ratio control system and a special calibration of the engine fuel metering system, both being oriented toward maximum fuel economy. Although the engine calibration was originated for use with the continuously variable type of transmission, the apparatus is instead intended for use with discrete-ratio transmissions. The throttle-and-gear-ratio control system makes only small sacrifices in fuel economy in order to significantly reduce the number of gearshifts executed by the transmission.

REFERENCES:
patent: 4262783 (1981-04-01), Scarrott et al.
patent: 4353272 (1982-10-01), Schneider et al.
patent: 4505169 (1985-03-01), Ganoung
patent: 4638690 (1987-01-01), Hattori et al.
patent: 4648290 (1987-03-01), Dunkley et al.
patent: 4714144 (1987-12-01), Speranza
patent: 4732055 (1988-03-01), Tateno et al.
patent: 4737915 (1988-04-01), Hosaka
patent: 4774858 (1988-10-01), Ganoung
patent: 4792901 (1988-12-01), Mack et al.

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