| 摘要 |
PURPOSE: To simplify hybrid constitution, and also save a memory space with a current controller eliminated, by preparing a pulse width modulation signal to input it into a pressure controller based on the control deviation of the target and actual values of a slip. CONSTITUTION: Various operational parameter in an engine cooperating with an automatic transmission are inputted into a control device 1, to calculate a target differential rotation frequency, that is, a slip target value, and also to output a calculated result to an addition part 2. A slip actual value is inputted into the addition part 2 to output both the values of control deviations to a pulse duty ratio circuit 4. Moreover a pulse width modulation signal is prepared in the circuit 4 to output a signal amplified as a current pulse in an output stage 5 to a pressure controller 7. Pressure in accordance with a liquid medium is in the controller 7, generated to actuate the converter clutch 9 of the automatic transmission. |
