System and method for controlling coolant flow through a heater core of a vehicle based on a temperature of air in a duct that supplies air to a passenger cabin of the vehicle

• Main Authors: Shivashankar, Goutham Ethiraj, Mer, Prashant V, Iyer, Vish S
• Format: Patent
• Language: English
• Published: 19.03.2019
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

A system includes a temperature error module and a coolant flow control module. The temperature error module determines an error between a target air temperature and a measured air temperature of a duct that supplies air to a cabin of a vehicle. The coolant flow control module controls a rate at which coolant flows to a heater core of the vehicle by adjusting at least one of a position of a coolant control valve of the vehicle and an output of an electric coolant pump of the vehicle. The coolant flow control module also controls the coolant flow rate to decrease the error between the target air temperature and the measured air temperature.