| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular heating system can improve heating performance, without deteriorating fuel economy. SOLUTION: This vehicular heating system has an EGR pipe 31 for recirculating a part of exhaust gas flowing in an exhaust pipe 26 of an engine 1 to an intake pipe 13, an air-cooled EGR cooler 34 arranged in a midway part of the EGR pipe 31 and cooling the exhaust gas by exchanging heat with cooling air while passing the exhaust gas and an air conditioner 2 having an evaporator 43 and a heater core 44 on the inside and taking in and sending out inside air or outside air into a cabin, and controls the air conditioner 2 so that the temperature in the cabin is approached to the target temperature, and includes an outside air introducing duct 66 for introducing the cooling air into the air conditioner 2 after exchanging heat with the exhaust gas by the air-cooled EGR cooler 34. COPYRIGHT: (C)2009,JPO&INPIT
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