| 摘要 |
PURPOSE:To aim at improvement in engine start performance, by increasing an amount of fuel injection when engine speed just after complete explosion of an engine is less than a target engine speed, and increase velocity of the engine speed after a fixed time is elapsed is less than a target velocity. CONSTITUTION:Engine speed Ne1 just after complete explosion of an engine is measured, and it is compared with a target engine speed Nup (about 2,000rpm) after complete explosion of the engine. If the engine speed Ne1<Nup, Ne1 is detected and then engine speed Ne2 at a time of ts is countered, thereby calculating thetaN=(Ne2-Ne1)/tS. thetaN is an increasing velocity of engine speed. If thetaN< thetaNset(thetaNset is a target increasing velocity of engine speed.), an amount of fuel is increased, so as to increase engine speed. Thus, engine start performance may be improved. |
