Distinguishing the fuel admitted to a fuel system
First Claim
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1. A method for registering a content change in a fuel system of a motor vehicle, the method comprising:
- admitting fuel to the fuel system, the fuel system configured to receive hydrogen and compressed natural gas into a common space;
indicating that compressed natural gas has been admitted if a temperature in the common space increases by more than a threshold amount when the fuel is admitted, said indicating occurring, if at all, before the compressed natural gas is consumed by an engine of the motor vehicle;
indicating that hydrogen has been admitted if the temperature in the common space increases by less than the threshold amount when the fuel is admitted, said indicating occurring, if at all before the hydrogen is consumed by the engine of the motor vehicle; and
adjusting a start-up operating parameter of the motor vehicle in response to which of said fuels is indicated to have been admitted.
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Abstract
A method for registering a content change in a fuel system of a motor vehicle, where the fuel system is configured to receive a first fuel and a second fuel into a common space. A first condition is correlated to receiving the first fuel, and a second condition is correlated to receiving the second fuel. The method comprises admitting fuel to the fuel system and indicating that the first fuel has been admitted if a condition responsive to admitting the fuel matches the first condition and does not match the second condition.
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Citations
21 Claims
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1. A method for registering a content change in a fuel system of a motor vehicle, the method comprising:
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admitting fuel to the fuel system, the fuel system configured to receive hydrogen and compressed natural gas into a common space; indicating that compressed natural gas has been admitted if a temperature in the common space increases by more than a threshold amount when the fuel is admitted, said indicating occurring, if at all, before the compressed natural gas is consumed by an engine of the motor vehicle; indicating that hydrogen has been admitted if the temperature in the common space increases by less than the threshold amount when the fuel is admitted, said indicating occurring, if at all before the hydrogen is consumed by the engine of the motor vehicle; and adjusting a start-up operating parameter of the motor vehicle in response to which of said fuels is indicated to have been admitted. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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2. A method for registering a content change in a fuel system of a motor vehicle, the method comprising:
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admitting fuel to the fuel system, the fuel system configured to receive a first fuel and a second fuel into a common space, where a first condition is correlated to receiving the first fuel, and a second condition is correlated to receiving the second fuel; indicating that the first fuel has been admitted if a condition responsive to admitting the fuel matches the first condition and does not match the second condition; and adjusting a start-up operating parameter of the motor vehicle in response to indicating that the first fuel has been admitted. - View Dependent Claims (3, 4, 5)
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6. A method for registering a content change in a fuel system of a motor vehicle, the method comprising:
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admitting fuel to the fuel system, the fuel system configured to receive a first fuel and a second fuel into a common space, where a first condition is correlated to receiving the first fuel, and a second condition is correlated to receiving the second fuel; and indicating that the first fuel has been admitted if a condition responsive to admitting the fuel matches the first condition and does not match the second condition.
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Specification