Method for operating a fuel system, and fuel system
First Claim
1. A method for operating a fuel system of an internal combustion engine, comprising adjusting a ventilation valve of a ventilation device of a fuel system for ventilating a fuel tank in a first operating mode exclusively as a function of a temperature when the internal combustion engine is deactivated.
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Abstract
In a method for operating a fuel system of an internal combustion engine, the fuel system has a fuel tank and a ventilation device for ventilating the fuel tank which has at least one ventilation valve. In a first operating mode the ventilation valve is adjusted for ventilating the fuel tank based exclusively on a temperature and/or the ventilation occurs over a defined period of time when the internal combustion engine is deactivated. The invention further relates to a fuel system of an internal combustion engine.
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Citations
35 Claims
- 1. A method for operating a fuel system of an internal combustion engine, comprising adjusting a ventilation valve of a ventilation device of a fuel system for ventilating a fuel tank in a first operating mode exclusively as a function of a temperature when the internal combustion engine is deactivated.
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31. A fuel system of an internal combustion engine, comprising:
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a fuel tank; and a ventilation device for ventilating the fuel tank, said ventilation device having at least one ventilation valve, wherein the fuel system is configured for adjusting the ventilation valve for ventilation of the fuel tank in a first operating mode exclusively as a function of a temperature, wherein the ventilation occurs over a defined period of time when the internal combustion engine is deactivated. - View Dependent Claims (32, 33, 34)
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35. A method for operating a fuel system of an internal combustion engine, comprising adjusting at least one ventilation valve of a ventilation device of the fuel system for ventilating a fuel tank in one of three ways, a first way corresponding to a first operating mode, exclusively as a function of a temperature, a second way corresponding to a second operating mode, exclusively as a function of a pressure, a third way, corresponding to a third operating mode, as a function of the temperature and the pressure, wherein said ventilating takes place over a defined period of time when the internal combustion engine is deactivated.
Specification