Back to results
US 10,770,740 B2Granted
Method of shutting down operation of fuel cell vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorDae Jong Kim
Life of this patent
Estimating the term…
Abstract
A method of shutting down operation of a fuel cell vehicle includes: blocking, by a controller, an air supply to a fuel cell stack when an operation shutting down command of the fuel cell vehicle is applied; increasing, by the controller, a voltage at an rear end of a stack main relay connected to the fuel cell stack; and opening, by the controller, the stack main relay when the voltage at the rear end of the stack main relay is higher than a stack voltage by a predetermined voltage or more.
Claims5
A method of shutting down operation of a fuel cell vehicle, the method comprising:
- an air supply blocking step of blocking, by a controller, an air supply to a fuel cell stack when an operation shutting down command of the fuel cell vehicle is applied;
- a voltage raising step of increasing, by the controller, a voltage at a rear end of a stack main relay connected to the fuel cell stack such that the voltage at the rear end of the stack main relay is higher than a voltage at the fuel cell stack;
- and
- a stack voltage blocking step of opening, by the controller, the stack main relay when the voltage at the rear end of the stack main relay is higher than a stack voltage by a predetermined voltage or more.
1 more element
Dependencies are inferred from the claim text.