CONTROL METHOD OF AUXILIARY EQUIPMENT FOR VEHICLE AND AIR CONDITIONER FOR VEHICLE
PROBLEM TO BE SOLVED: To reduce NOx at the time when catalyst temperature is low and an engine load becomes large by controlling driving of auxiliary equipment such as a compressor, etc. SOLUTION: An engine ECU 54 outputs a stop signal of a compressor 14 to an air conditioner ECU 52 when catalyst te...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To reduce NOx at the time when catalyst temperature is low and an engine load becomes large by controlling driving of auxiliary equipment such as a compressor, etc. SOLUTION: An engine ECU 54 outputs a stop signal of a compressor 14 to an air conditioner ECU 52 when catalyst temperature detected by a catalyst temperature sensor 70 is lower than prescribed temperature at the time of starting an engine 20. Consequently, the air conditioner 52 puts off an electromagnetic clutch 28. Additionally, the engine ECU 52 outputs a stop signal to stop the compressor 14 for a specified period of time at the time when a load of the engine 20 is predicted to increase from a detection result of an air intake pressure sensor 60 and an engine speed sensor 62 without saying of the time when catalyst temperature is lowered while traveling. The load of the engine 20 is reduced as the compressor 14 is stopped, and increase of NOx by increase of the load is restrained. |
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