Method for managing a hybrid powertrain for a hydrogen motor vehicle and associated powertrain
AssigneeAmpere S.A.S.
InventorDavid GERARD
Life of this patent
Estimating the term…
Abstract
A method manages a hybrid powertrain of a hydrogen motor vehicle. The hybrid powertrain includes an internal combustion engine, a fuel cell, a hydrogen storage tank, and a line connecting an air outlet of the fuel cell to an air inlet of the internal combustion engine. The line has a cutoff valve. The method includes controlling the shutdown of the fuel cell, stopping the internal combustion engine, opening the cutoff valve when the fuel cell and the internal combustion engine are stopped, and running the internal combustion engine without injecting hydrogen from the storage tank in order to draw, via the line, the fluids present in the fuel cell to the internal combustion engine.
Claims12
1-11. (canceled)
A method for managing a hybrid powertrain of a hydrogen motor vehicle, comprising an internal combustion engine, a fuel cell, a hydrogen storage tank, and a first pipe which connects an air outlet of the fuel cell to an air inlet of the internal combustion engine and comprises a first cut-off valve, the method comprising the following steps:
- a) provoking a shut-down of the fuel cell;
- b) provoking a shut-down of the internal combustion engine;
- c) when the fuel cell and the internal combustion engine have shut down, opening the first cut-off valve;
- and
- d) when the first cut-off valve is open, running the internal combustion engine without an injection of hydrogen originating from the storage tank in order to draw fluids present in the fuel cell towards the internal combustion engine via the first pipe.
A hybrid powertrain for a hydrogen motor vehicle, comprising:
- an internal combustion engine;
- a fuel cell;
- a hydrogen storage tank;
- a first pipe which connects an air outlet of the fuel cell to an air inlet of the internal combustion engine and comprises a first cut-off valve for selective passage of fluids present in the fuel cell from said air outlet towards the internal combustion engine;
- and
- a control device configured to provoke opening of the first cut-off valve when the fuel cell and the internal combustion engine have shut down, and to run the internal combustion engine without an injection of hydrogen originating from the tank in order to draw the fluids present in the fuel cell towards the internal combustion engine via the first pipe.
A motor vehicle comprising:
- a hybrid powertrain, the hybrid powertrain comprising:
- an internal combustion engine;
- a fuel cell;
- a hydrogen storage tank;
- a first pipe which connects an air outlet of the fuel cell to an air inlet of the internal combustion engine and comprises a first cut-off valve for selective passage of fluids present in the fuel cell from said air outlet towards the internal combustion engine;
- and
- a control device configured to provoke opening of the first cut-off valve when the fuel cell and the internal combustion engine have shut down, and to run the internal combustion engine without an injection of hydrogen originating from the tank in order to draw the fluids present in the fuel cell towards the internal combustion engine via the first pipe.
Dependencies are inferred from the claim text.