| 摘要 |
PROBLEM TO BE SOLVED: To correct an increase in a proper fuel injection amount in consideration of friction loss of auxiliary machines for a while upon starting or after starting when an engine is heated by a heater during the engine stop. SOLUTION: When the difference between cooling water temperature THW and intake air temperature is judged to be not less than predetermined temperature, although the engine stopping time up to starting is not less than predetermined time, it is judged that the engine is in a state warmed up by a block heater (in the state where friction loss is comparatively large while the auxiliary machines is at low temperature). In this case, for a while upon starting or after starting, the increase amount of fuel injection is corrected by using a correction coefficient of fuel injection of the block heater calculated based on the difference between cooling water temperature THW and intake air temperature THA. Thereby, when the engine is warmed by the heater during the engine stop, the increase of proper fuel injection amount corresponding to the friction loss of the auxiliary machines can be corrected for a while upon starting or after starting. COPYRIGHT: (C)2003,JPO
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