Method of controlling battery cooling system for vehicle

Abstract

A method of controlling temperature of a battery module in a battery cooling system for a vehicle may include driving the vehicle, setting an electrical equipment cooling start temperature A', a coolant cooling start temperature B' of the battery module, and a refrigerant cooling start temperature B" of the battery module, detecting an electrical equipment temperature A and a battery module temperature B, determining whether the temperature B' is higher than the temperature B and is lower than the temperature B" and whether the temperature A is lower than the temperature A', and closing when the temperature B' is higher than the temperature B and is lower than the temperature B" and the temperature A is lower than the temperature A', each port of first and second valves, turning off operation of a second expansion valve, and terminating the control to prevent coolant from circulating to a cooler and the battery module.

Description

[0001] Cross references to related applications [0002] This application claims priority from Korean Patent Application No. 10-2016-0077217 filed on June 21, 2016, the entire content of which is incorporated herein for all purposes of this citation. Technical field [0003] The invention relates to a control method of a battery cooling system for a vehicle. More specifically, the present invention relates to a control method of a battery cooling system for a vehicle, which cools electric vehicles or hybrids by using a coolant for heat exchange with a refrigerant and linking an air conditioner with a cooler The battery module in the vehicle. Background technique [0004] Generally, an air conditioner for a vehicle includes an air conditioner system that circulates a refrigerant to heat or cool the interior of the vehicle. [0005] This kind of air conditioner can maintain a comfortable environment in the vehicle by maintaining the temperature inside the vehicle at an appropriate tem...

AI Technical Summary

Problems solved by technology

[0012] Therefore, there may be disadvantages in that the cooling module provided on the front side of the vehicle is increased in size and weight, and the connection of each of the heat pump system for supplying refrigerant or coolant to the engine compartment, the cooler, and the battery cooling system The layout of the piping also becomes very complicated

[0013] In addition, in order for the battery to exhibit the best performance, a battery cooling system for heating or cooling the battery according to the state of the vehicle is independently provided, and a plurality of valves for connecting each connection line is applied, and since the valves Noise and vibrations from frequent opening and closing operations are transmitted to the interior of the vehicle, thereby compromising driving comfort

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