Automatic transmission up-shifting vehicle speed calibration method with combination of fuel economy and dynamic property

The invention provides an automatic transmission up-shifting vehicle speed calibration method with combination of fuel economy and dynamic property. The method comprises the following steps: a, engine speed measuring points are selected; b, corresponding vehicle speed of each measuring point in each...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WU FEI, CHEN GUODONG, LI YAN, WANG HAO, YUAN ZHONGZHUANG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides an automatic transmission up-shifting vehicle speed calibration method with combination of fuel economy and dynamic property. The method comprises the following steps: a, engine speed measuring points are selected; b, corresponding vehicle speed of each measuring point in each gear is set as an up-shifting vehicle speed for fixing the aperture of an accelerator pedal; c, a vehicle starts in situ, the aperture of the accelerator pedal is fixed, acceleration time and working condition fuel consumption corresponding to the engine speed of each measuring point in the step a are measured, the acceleration time is taken as abscissas, the working condition fuel consumption is taken as ordinates, a fuel economy-dynamic property curve is drawn, and the vehicle speed calculated in the step b in each gear and corresponding to an inflection point in the curve is taken as the up-shifting vehicle speed for fixing the aperture of the accelerator pedal; d, the steps are repeated, the vehicle speeds are