| 摘要 |
An accelerator opening changes with time when an acceleration/deceleration request is made by a driver. A filtering device smoothes the response waveform (unsmoothed torque) of driver request torque obtained at this time at a predetermined smoothing rate. A second-order lag filter (32) expressed by a transfer function of É 2 / (s 2 + 2¶És + É 2 ) is established as such a filtering means. Using this second-order lag filter (32), the rising edge or falling edge of the response waveform (smoothed torque) of driver request torque is made gentler in slope than the intermediate region of the response waveform (smoothed torque) of driver request torque and than cases where a first-order lag filter is used. Thus, the initial acceleration/deceleration shock encountered when an acceleration/deceleration request is made can be sufficiently mitigated.
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