| 摘要 |
PROBLEM TO BE SOLVED: To judge a high temperature by an evaporator temperature reflecting an outer air temperature and mission fluid temperature by providing at least two speed change maps for a normal temperature and a high temperature and switching this two maps in response to the evaporator temperature state and controlling the speed change of an automatic transmission. SOLUTION: The speed change of an automatic transmission is controlled by the speed change map for a normal temperature (step 104). It is judged whether an evaporator temperature is the temperature for judging high temperature (A) or more (step 106). By returning to the step (104) at the case of NO, judging it is a high temperature state at the case of YES (step 108) and switching to the speed change map for high temperature (step 110), the speed change of an automatic transmission is controlled (step 112). Then, it is judged whether the evaporator temperature is the temperature for judgement releasing (B) or less (step 114). By returning to the step (112) at the case of NO, releasing a high temperature judgement at the case of YES (step 116) and switching to the speed change map for normal temperature (step 118), the speed change of the automatic transmission is controlled (step 120). |
