| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle controller capable of estimating the temperature of a catalyst highly precisely even in a vehicle equipped with an internal combustion engine which is intermittently operated. <P>SOLUTION: In this vehicle controller, an engine ECU 22 inhibits calculation of basic temperature of catalyst Tbase based on engine speed NE and engine load factor KL when an engine 11 is intermittently stopped and retracts each temperature reduction corrected value Tai, Tsp decided in accordance with outside air temperature and vehicle speed from the basic temperature of catalyst Tbase inferred at the previous time to estimate simulated temperature of catalyst, tempcat. As a result, the simulated temperature of catalyst, tempcat in a catalyst converter 58 becomes hardly estranged from actual temperature Treal, and temperature of catalyst in the catalyst converter 58 can be estimated with high precision. <P>COPYRIGHT: (C)2010,JPO&INPIT |
