| 摘要 |
PURPOSE:To improve the speed for detecting acceleration of an engine by generating the acceleration signal having the value obtained by the subtraction of the stress in stationary time in a throttle valve driving transmission passage from the stress in said passage, thus permitting the acceleration to be detected in utilization of a subtraction circuit having the improved response. CONSTITUTION:When an acceleration pedal 11 is stepped-in stationarily, the output of a piezo-electric element PZ increases according to a prescribed value determined by each spring force of a spring 20, 21. Therefore, the output of the amplifying circuit 29 in a control circuit 31 varies along the bent line l which is the output from a function circuit 28, and the acceleration signal which is outputted from a differential amplifying circuit 30 becomes zero, and the fuel injection amount is controlled according to the output of an intake air amount calculating circuit 23. While, when the speed in stepping-in the pedal 11 is sharply varied midway, the output of the piezo-electric element PZ is sharply varied, and the output of the amplifying circuit 29 varies along a curve l'. Therefore, the acceleration signal corresponding to the oblique line part is outputted from the differential amplifying circuit 30, and the fuel injection amount is corrected according to the output of the increment coefficient generating circuit 32. |
