| 摘要 |
PURPOSE:To aim at the harmonization of acceleration, by releasing a lockup working state if it is the case in time of car acceleration, and maintaining a lockup controller in time of its releasing state, while controlling it so as to accelerate a car in the lockup releasing state. CONSTITUTION:In case of a device controlling a transmission control valve and a lockup control valve in a hydraulic controller for an automatic transmission, those output signals out of a load sensor 207 detecting load from the opening of a throttle valve 206, an engine speed sensor 208, a car speed sensor 210, etc., are all inputted into a control circuit 200. And, at this control circuit 200, whether or not a car is in a state of being accelerated is judges on the basis of the differential value of an engine speed. When this judgement is ''Yes,'' successively whether it is lockup working or not is judged and when ''Yes'' is the case, lockup release control takes place. On the other hand, when a lockup release state is the case, this state is left maintained intact, under which control is completed. |
