| 摘要 |
<p>An internal combustion engine exhaust gas recirculation valve control apparatus which, during exhaust gas recirculation (EGR) control, can correct positional error due to stepping out of a stepping motor actuating an exhaust gas recirculation valve and effect EGR control with increased accuracy. A controller initializes the stepping motor during EGR control when the target opening degree of the exhaust gas recirculation valve becomes 'fully closed' by driving the stepping motor to cause a valve body to abut a valve seat.</p> |
