Thermal management system and method for hybrid electric vehicle

The present invention provides a thermal management system and method for a hybrid vehicle that can increase than the heating performance of when the engine is stopped in as using the cooling water of the engine heating to the vehicle cabin thermal management system and method it relates to a hybrid vehicle it is an object. In order to achieve the above object, and the heater core to provide heat for heating the vehicle interior by heat exchange between air discharged to the cooling water car interior passes through the engine, comprising a heat exchange between oil and cooling water passing through the driving part heat exchanger and the engine and a hybrid vehicle train including an oil line to ensure that the oil is circulated between the heater core, and a cooling water pump provided in the cooling water line and a water line to ensure that the cooling water is circulated between the heat exchanger, the heat exchanger and the driving part in the control system, the engine-side cooling water by-installed in a line according to the drive and the stop state of the engine comprises a by-pass valve further to be opened and closed controlled by a controller, and the engine is stopped when the cooling water passes through the heat exchange deception without passing through the engine, by controlling the bypass valve, above the room temperature increase after heating in the heat exchanger The year the thermal management system for a hybrid vehicle characterized in that the coolant supplied to the heater core to prevent the cooling by the engine is disclosed.