| 摘要 |
<P>PROBLEM TO BE SOLVED: To inhibit reduction of a service life resulted from generation of excessive thermal stress in a radiator in a cooling device of a vehicle having the common radiator in which a heat radiation part for flow of a refrigerant cooling an engine cooling mechanism and a heat radiation part for flow of a refrigerant cooling an electric appliance cooling mechanism are incorporated integrally. <P>SOLUTION: The engine cooling mechanism 10 cools an internal combustion engine 11 by letting cooling water circulate in a first reflux passage 19 having the first heat radiation part 14 through a first pump 12. The electric appliance cooling mechanism 20 cools an electric motor generator 21 and the like by letting cooling water circulate in a second reflux passage 26 having the second heat radiation part 24 through a second pump 23. The respective heat radiation parts 14, 24 are composed by dividing the common radiator 31 into two parts. A control device 91, when a temperature difference between the first heat radiation part 14 and the second heat radiation part 24 reaches a predetermined value or more, performs either one of a process for prohibiting warm-up facilitation processing and a process for limiting operation of the second pump 23. <P>COPYRIGHT: (C)2012,JPO&INPIT |
