| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent heat deterioration of an exhaust system component. SOLUTION: In the case where the automatic stop condition in an idling operation is effected, for example, where driving is stopped under an idling operation condition (S1 to S5), when a catalyst temperature Tcat exceeds a prescribed temperature T3 set up based on the temperatures of oil, water, outdoor air, etc., (S6 to S9), the idling operation by a compression self-igniting combustion mode with lower exhaust temperature is carried out (S11), and when the Tcat is lower than the T3, the idling operation is stopped automatically (S10).</p> |
