COOLING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES

摘要

A cooling control device capable of improving the heat dissipation effect in engines particularly in a high load state and effectively avoiding the worst situation that can lead to knocking or overheating. The cooling control device comprises a flow control unit (11) for controlling the flow rate of the cooling medium, a variable grille unit (22) making it possible to regulate the amount of draft to a radiator (2), and an instruction signal generating unit (15) for generating an instruction signal to control the flow rate of a cooling medium in the flow control unit (11) and the amount of draft to a heat exchanger (2) in the variable grille unit (22) on the basis of at least the information about the temperature of the cooling medium. The instruction generating unit (15) controls the states of the flow control unit and variable grille unit on the basis of the temperature and other information in the cooling medium in the operating state of the engine, the two functions providing a proper heat dissipation effect covering the range from engine warming-up to high load operation.