| 摘要 |
The invention relates to a method for controlling an automatic transmission, more particularly a method for controlling gear changes in an automatic transmission of a motor vehicle driven by an internal combustion engine, having the following steps: predicting the fuel consumption of the internal combustion engine that would result if the automatic transmission were shifted from its present gear into a next higher gear with relatively low transmission ratio between a transmission input and a transmission output of the automatic transmission, and/or predicting the fuel consumption of the internal combustion engine that would result if the automatic transmission were shifted from its present gear into a next lower gear with a relatively high transmission ratio between the transmission input and the transmission output; and comparing the predicted fuel consumption of the internal combustion engine in the next higher gear of the automatic transmission and/or the predicted fuel consumption of the internal combustion engine in the next lower gear of the automatic transmission with the present fuel consumption of the internal combustion engine; shifting the automatic transmission into the next higher gear or into the next lower gear as a function of the comparison in order to obtain a fuel consumption saving. The invention is characterized in that, before the shift, an additional fuel consumption resulting from the shift process itself is predicted, and a shift is performed as a function of the predicted additional fuel consumption.
|
