| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide smooth shifting while preventing worsening of fuel consumption, and prevent great shocks from being given to an automatic transmission in re-acceleration after sharp deceleration. SOLUTION: Fuel consumption worsening is prevented by reducing a margin width of a flow rate during idle rotation of an oil pump. If an accelerator pedal is stepped on when an engine is slower than the idle rotation due to sudden braking, the flow rate of oil pump is insufficient, and a low clutch is slipping, a low clutch engagement pressure (an L/C pressure) is suppressed from sharply rising like the broken line by holding a line pressure command value at lower than normal P1 for a predetermined time T1 and raising it at an inclinationθ. During this, an engagement shock is positively prevented by also reducing torque of the engine.</p> |
