Abstract:
An arrangement and procedure for pressurizing a cooling system that cools an internal combustion engine (2) in a vehicle (1). The cooling system includes a coolant pump (3) for circulating the coolant in the cooling system, an expansion tank (12) allowing the coolant in the cooling system to expand, and a pressure relief valve (15) that releases air when a specific pressure is reached in the cooling system. A compressed air-entraining device (17-21) allows compressed air to be supplied to the cooling system by supplying a continuous air flow to the cooling system while the internal combustion engine (2) is operational, and to supplying an air flow of a size at least equal to the estimated leakage from the cooling system.
Abstract:
A method and a system for controlling a vehicle cooling system includes: a velocity prediction unit makes a prediction of at least one future velocity profile vpred for the vehicle; a temperature prediction unit predicts at least one future temperature profile Tpred for at least one component in the vehicle, based on at least tonnage for the vehicle; information related to a section of road ahead of the vehicle and on the at least one future velocity profile vpred. A cooling system control unit controls the cooling system based on the at least one future temperature profile Tpred and on a limit value temperature Tcomp—lim for the respective at least one component in the vehicle so that a number of fluctuations of an inlet temperature Tcomp—fluid—in—radiator for the cooling fluid flow into the radiator is reduced and/or so that a magnitude of the flow into the radiator is reduced when a temperature derivative dT/dt for the inlet temperature Tcomp—fluid—in—radiator exceeds a limit value dT/dtlim for the temperature derivative.