Automatic transmission provided with mode preventing increase in oil temperature

摘要

The present invention provides an automatic transmission provided with an oil temperature increase prevention mode which automatically shifts gears on the basis of a gear-change pattern of that mode, and which is one of a plurality of gear-change patterns, in which downshift points are shifted toward the high-speed side from a standard gear-change pattern when the oil temperature signal rises above the level of a signal corresponding to a given temperature; and a control system for judging that oil temperature has increased to a given temperature on the basis of the oil temperature signal, and generating control signal so as to change the mode to the oil temperature increase prevention mode.