WARMING UP SYSTEM FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a warming up system for a vehicle capable of maintaining performances of heat accumulating material and working fluid by preventing deterioration thereof and effectively using heat generated in a vehicle. SOLUTION: The warming up system 1 for the vehicle is provided with the heat accumulation device 10, a cooling water circulation path 31 making cooling water of the engine 30 flow to the heat accumulation device 10, and a working fluid circulation path 41 making working fluid of a transmission 40 flow to the heat accumulation device 10, and carries out heat accumulation and heat radiation of the heat accumulation material 20 by heat transfer between the heat accumulation material 20, cooling water and working fluid in the heat accumulating device 10. The system is provided with a cooling water temperature sensor 38, a change over valve 33 changing over existence of flow of cooling water to the cooling water channel 31, and ECU 50 controlling the change over valve 33. The ECU 50 stops flow of the cooling water to the cooling water circulation path 31 if cooling water temperature gets to a prescribed temperature or higher and working fluid temperature gets toa prescribed temperature of lower after the EUC 50 judges that the heat accumulation material 20 is in heat accumulation completion state. COPYRIGHT: (C)2010,JPO&INPIT