To improve efficiency of a cooling system configuration of a hybrid vehicle loading an engine and a motor mainly in aspects of power consumption and space saving.
In a cooling system wherein an engine cooling path 304 and an HV cooling path 305 are integrated, a water pump 305 provided in both the cooling paths 304, 305 in common is not provided inside both the cooling paths, and a flow control mechanism 360 is disposed between the water pump 305 and both the cooling paths 304, 305. An ECU 380 sets a cooling water discharge amount of the water pump 305 according to a sum of necessary cooling water amounts in both the cooling paths 304, 305 on the basis of an operation state of the engine 4 and a motor generator. The flow control mechanism 360 distributes cooling water discharged from the water pump 350 according to a ratio of the necessary cooling water amounts in both the cooling paths 304, 305.
| WO/2010/079794 | WARM-UP METHOD FOR HYBRID CONSTRUCTION MACHINE, AND HYBRID CONSTRUCTION MACHINE |
| JP2014073777 | HYBRID VEHICLE CONTROL DEVICE |
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Toshio Morita
Tadashi Muto