| 摘要 |
PURPOSE:To insure quick acceleration by detecting the abrupt accelerator operation frequency and deciding whether the driver is abrupt acceleration oriented or fuel saving oriented and increasing the speed variation of throttle valve opening if the driver is abrupt acceleration oriented. CONSTITUTION:Under travelling of car, the stepping of an accelerator pedal 1 is detected by an accelerator opening detector 2 to feed a signal through an amplifier 3 to a differential amplifier 4, then the difference against a signal from a throttle valve detector 10 is produced to drive a motor 8. The output from said detector 2 is provided to a differentiator 11 to count the frequency of speed change higher than the referential value by means of a counter 18 and upon reaching the frequency more than the predetermined value, it is decided that the driver is abrupt acceleration oriented and further abrupt stepping of accelerator pedal will cause to increase the amplification factor of the amplifier 3 by means of a signal from AND gate 22, thus to open the throttle valve 9 widely with abrupt speed variation thereby sufficient acceleration is achieved, while when the driver is fuel saving oriented, it is opened slowly to drive with good fuel consumption. |
