Engine control systems and methods with humidity sensors
First Claim
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1. A system for a vehicle, comprising:
- a humidity determination module that determines a first specific humidity of air based on a relative humidity of the air measured by a humidity sensor in an intake system of the vehicle;
a specific humidity module that sets a second specific humidity of the air equal to one of the first specific humidity and a predetermined specific humidity of the air in response to a comparison of a mass air flowrate (MAF) into an engine and a predetermined flowrate; and
a parameter control module that controls at least one operating parameter of an engine based on the second specific humidity.
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Abstract
A system for a vehicle includes a humidity determination module, a specific humidity module, and a parameter control module. The humidity determination module determines a first specific humidity of air based on a relative humidity of the air measured by a humidity sensor in an intake system of the vehicle. The specific humidity module sets a second specific humidity of the air equal to one of the first specific humidity and a predetermined specific humidity of the air in response to a comparison of a mass air flowrate (MAF) into an engine and a predetermined flowrate. The parameter control module controls at least one operating parameter of an engine based on the second specific humidity.
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Citations
20 Claims
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1. A system for a vehicle, comprising:
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a humidity determination module that determines a first specific humidity of air based on a relative humidity of the air measured by a humidity sensor in an intake system of the vehicle; a specific humidity module that sets a second specific humidity of the air equal to one of the first specific humidity and a predetermined specific humidity of the air in response to a comparison of a mass air flowrate (MAF) into an engine and a predetermined flowrate; and a parameter control module that controls at least one operating parameter of an engine based on the second specific humidity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for a vehicle, comprising:
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determining a first specific humidity of air based on a relative humidity of the air measured by a humidity sensor in an intake system of the vehicle; setting a second specific humidity of the air equal to one of the first specific humidity and a predetermined specific humidity of the air in response to a comparison of a mass air flowrate (MAF) into an engine and a predetermined flowrate; and controlling at least one operating parameter of an engine based on the second specific humidity. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification