| 摘要 |
PURPOSE:To prevent vibration of a car during deceleration operation in case of 2-wheel driving by stopping fuel injection operation of a fuel injection valve during deceleration operation in case of 4-wheel driving and controlling the valve so that fuel injection operation is not stopped during deceleration operation in case of 4-wheel driving. CONSTITUTION:The valve opening time, namely the fuel injection amount of a fuel injection valve 26 is controlled by inputting each output signal of an air flow sensor 18, crank-angle sensor 40, throttle switch 48, O2 sensor 52, water temp. sensor 56, etc. into a control circuit 30. A driving-state detector 64 for detecting the 4-wheel driving state of a driving switching apparatus 62 for switching 4-wheel/2-wheel driving is installed. When the control circuit 30 judges deceleration operation, said circuit 30 judges 2-wheel/4-wheel driving state from the output signal supplied from the driving state detector 64, and when 2-wheel driving state is judged, fuel injection is suspended. When 4-wheel driving state is judged, fuel infection is continued, and thus torque variation is prevented, and vibration of car is prevented. |
