DISPOSITIF DE REFROIDISSEMENT D'UN MOTEUR DE VEHICULE AUTOMOBILE

摘要

The invention concerns a method for cooling a motor vehicle engine which consists in regulating the volume and the flow rate of a coolant in a hydraulic circuit (2) provided with a bypass hose (5) equipped with an electronically controlled proportional actuator (15) and with means (10) forming a direct or bypass return of fluid. The invention is characterised in that it comprises a step which consists in determining the coolant temperature, a step which consists in comparing the detected temperature with first and second predetermined temperature thresholds and a step which consists in controlling the opening of the actuator such that, when the fluid temperature ranges between the first and the second threshold temperatures, the degree at which the actuator is opened is at least temporarily proportional to the cooling fluid temperature. The invention also concerns a cooling device for implementing said method.