| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably determine a fully closed state of a throttle valve even when an output signal is changed due to temperature characteristics of an opening degree sensor. <P>SOLUTION: The device includes a characteristic line generation means for generating a characteristic line of an opening degree sensor temperature-sensor output signal in a fully closed state of a throttle valve on the basis of at least two sets of combinations of opening degree sensor temperature obtained by an opening degree sensor temperature acquisition means and sensor output signal obtained by a sensor output signal acquisition means at the opening degree sensor temperature, a calculation means for calculating a threshold of the sensor output signal in a fully closed state of the throttle valve from a current opening degree sensor temperature obtained by the characteristic line generation means through the utilization of the characteristic line produced by the characteristic line generation means, and a fuel close determination means for determining fully closed state of the throttle valve in comparison between the threshold calculated by the calculation means and the current sensor output signal obtained by the sensor output signal acquisition means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
