| 摘要 |
PURPOSE:To improve accelerating responsiveness at the time of quick acceleration ever so better, by installing a bypass passage interconnecting a float chamber and a suction passage at the downstream of a throttle valve as well as installing an on-off operating device, being opened at the time of quick accelerating detection, in this passage. CONSTITUTION:A jet 21, metering a fuel flow rate flowing in a bypass passage 20, is installed alongside in the bypass passage 20 interconnecting a float chamber 3 and a suction passage 8 at the downstream of a throttle valve 1, while a normally- opened type solenoid valve 22 is installed alongside in the downstream. In addition, a pressure sensitive element 24 is installed interposingly between an accelerator pedal 25 and a rubber plate 26, and the output signal is inputted into a control circuit 30. And, this control circuit 30 is provided with an LPF 31 cutting a high-frequency noise of an output signal out of the pressure sensitive element 24, an amplifier circuit 32 and a differentiation circuit 33, and a comparator 34 comparing an accelerator pedal operating speed to be outputted out of the said circuit 33 with the specified value Vf, and when the operating speed exceeds the specified value Vf, it judges to be at the time of quick acceleration, constituting the solenoid valve 22 to be controlled foropening. |
