A REGULAR TEMPERATURE SYSTEM FOR POWERTRAIN OF VEHICLE AND CONTROL METHOD THEREFOR

摘要

This invention relates to a regular temperature system for powertrain of vehicle and a control method therefor. This invention comprises; a heating unit(50) which heats the passenger room of the vehicle with the cooling water from the engine(ENG); a circulation line(62) which circulates the cooling water using a pump(P); a cooling line(64) which cools the cooling water with a radiator(RA) and returns the cooling water to the engine(ENG); a cooling water valve(70) which controls the flow of the cooling water discharged from the engine(ENG) to the cooling line(64), circulation line(62) or the heating unit(50); and a transmission(TM) temperature control unit which regulates the temperature of transmission(TM) at optimal level by heating or cooling the transmission(TM) with the cooling water cooled with the radiator(RA) or heated in the engine(ENG). The system in accordance with this invention can heat or cool transmission(TM) as desired.