| 摘要 |
A heat management system (1A) for vehicles comprises: a first circulation circuit (3) which cools an engine body (2a) of an internal combustion engine (2) and includes a first pump (5) for pressure-feeding a refrigerant; a second circulation circuit (4) including an exhaust heat recovery apparatus (10) for recovering exhaust heat from the internal combustion engine (2), a heater core (11) used for air-conditioning of a vehicle, and a second pump (12) for pressure-feeding the refrigerant; communication passages (15, 16) allowing the first circulation circuit (3) to communicate with the second circulation circuit (4); and an on-off valve (18) provided in the first communication passage 15, and switching between the communication between the first circulation circuit (3) and the second circulation circuit (4) and the preventing of communication therebetween, wherein the on-off valve (18) is controlled such that the refrigerant temperature of the first circulation circuit (3) is higher than that of the second circulation circuit (4). |
