PROTECTION METHOD FOR WATER PUMP

摘要

PURPOSE: A water pump protection method is provided to prevent damage to water pump parts such as bearing in a no-load condition by determining the no-load condition and stopping the operation of the water pump. CONSTITUTION: A water pump protection method comprises steps of: driving a water pump and a timer of a controller when a vehicle is started(S1), checking whether pump current is less than the reference current(S2), applying pump current corresponding to the load of electronic components to the water pump, checking whether the pump current less than the reference current is maintained for the set time, and stopping the operation of the water pump(S6).