| 摘要 |
PURPOSE:To prevent the air-fuel ratio from being made lean or rich temporarily during a speed change and to improve the exhaust gas purification performance and operational performance by controlling so as to increase or decrease the fuel in synchronism with the speed change action when an automatic speed changer changes the speed. CONSTITUTION:A basic fuel injection time is determined in a control circuit 56 based on the intake air quantity and engine speed obtained by the outputs from an air flow meter 14 and crank angle sensor 48. The valve opening time of an injector 30 is controlled by correcting the injection time in accordance with outputs from an O2 sensor 40, water temperature sensor 50, etc. At this time, when a shift up signal is output from the shift solenoid (not shown in the figure) of an electronically controlled automatic speed changer 42 in a control circuit 56, the valve opening time signal to the injector 30 is increased by a fixed value to control the fuel when the speed change delay time due to the oil pressure transmission delay has elapsed. |
