Method for controlling thermal management systems of power plant
View Patent ↗A power plant thermal-management-system control method for controlling thermal management systems in PMCs is provided. The thermal management systems are operated based on coolant temperatures of the PMCs of a power plant of a fuel cell vehicle to prevent the temperatures of the PMCs from deviating from a reference range, which in turn prevents degradation of fuel cells.
1. A method for controlling thermal management systems of a power plant, comprising:
opening, by a high-level controller, a temperature control valve (CTV) of a second power module complete (PMC) when the second PMC in operation is stopped, while a first PMC is in operation;
operating, by the high-level controller, a thermal management system of the first PMC to a maximum;
closing, by the high-level controller, the CTV of the second PMC when a reference time lapses; and
operating, by the high-level controller, the thermal management system of the first PMC normally when the reference time lapses.
2. The method of claim 1 , wherein the opening of the CTV of the second PMC includes:
opening, by the high-level controller, the CTV of the second PMC to an opening degree of 100%.
3. The method of claim 1 , wherein the operating of the thermal management system of the first PMC to the maximum includes:
opening, by the high-level controller, a CTV of the first PMC to an opening degree of 100%; and
operating, by the high-level controller, a coolant supply pump (CSP) of the first PMC at a maximum revolutions per minute (RPM).
4. The method of claim 1 , wherein the closing of the CTV of the second PMC includes:
closing, by the high-level controller, the CTV of the second PMC to an opening degree of 0%.