Heat exchange control system and method for automobile air conditioner

The invention discloses a heat exchange control system and a heat exchange control method for an automobile air conditioner. The control system comprises a cooling water tank of an engine, an air heating box, a water inlet pipe, a water return pipe, a water pump and a controller, wherein the cooling water and the air heating box are connected through the water inlet pipe and the water return pipe; the water pump is arranged on the water inlet pipe, and is powered by a storage battery of an automobile; the controller is used for detecting the starting and stopping state of the engine, and controlling the water pump to be opened and closed. According to the heat exchange control system and the heat exchange control method for the automobile air conditioner, the water pump is additionally arranged on the water pipe for connecting the cooling water tank of the engine with the air heating box of the air conditioner, and is driven by the storage battery of the automobile, so that the water pump can continuously work to drive remaining high-temperature cooling fluid into the air heating box to continue heating the interior of the automobile after the engine of the automobile is stopped; therefore, the energy waste of the cooling fluid is reduced, and better experiences are created for a user.