Patent ID: 11962049
Assignee: HYUNDAI MOTOR COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. The method of claim 8, wherein the operating of the first power converter or the second power converter includes:
determining, by the controller, whether a current situation is a low temperature situation, when starting the stop procedure;
stopping, by the controller, a boost operation of the single bidirectional DC/DC converter module and at least one unidirectional DC/DC converter module in the second power converter, when the controller concludes that the current situation is the low temperature situation;
operating, by the controller, the second voltage battery in a discharge mode;
initiating, by the controller, a buck operation of the single bidirectional DC/DC converter module;
bucking and supplying, by the single bidirectional DC/DC converter module, electrical energy stored in the second voltage battery to the BOP; and
removing, by the BOP, a material remaining in the fuel cell stack under control of the fuel cell controller,
wherein the low temperature situation is when an external temperature is less than a predefined threshold temperature.