| 摘要 |
PURPOSE:To soften the sharp starting-up of the output-shaft torque of an automatic transmission after the completion of engagement accompanied by starting- up by decreasing the output torque of an internal-combustion engine after the completion of the engagement from a frictional engagement apparatus for high- speed stage to a frictional engagement apparatus for low-speed stage. CONSTITUTION:A hydraulic control circuit 30 is equipped with a solenoid valve 32, and an EFI computer 38 calculates the fuel injection amount and the ignition timing and controls an engine 40. Said computer 38 receives an input signal from a switch 42 for detecting that the piston of the accumulator of a frictional engagement apparatus for high-speed stage is set at an oil discharge position. A standard time is detected on the basis of the detection signal of the switch 42 or the speed-change signal supplied from an ECT computer 36, and an advance amount control means 74 as engine output torque increasing and decreasing means decreases the advance amount in relation to the lapse time measured by a timer 72, and an ignition coil 76 is controlled by a means 74. |
