Detection of a humidity sensor failure in an internal combustion engine
First Claim
1. A method to determine degradation of a humidity sensor used for controlling an engine of a vehicle, the humidity sensor exterior to a passenger compartment of the vehicle, the method comprising:
- determining whether to enable monitoring of the sensor based on a duration since vehicle operation; and
in response to a determination to enable monitoring,comparing a signal from a second humidity sensor to a signal from the humidity sensor exterior to said passenger compartment of the vehicle to determine whether either of sensors has degraded.
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Accused Products
Abstract
A method to determine degradation of a humidity sensor used for controlling an engine of a vehicle, the humidity sensor exterior to a passenger compartment of the vehicle, the method comprising determining whether to enable monitoring of the sensor based on a duration since vehicle operation; and in response to a determination to enable monitoring, comparing a signal from a second humidity sensor to a signal from the humidity sensor exterior to said passenger compartment of the vehicle to determine whether either of sensors has degraded.
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Citations
5 Claims
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1. A method to determine degradation of a humidity sensor used for controlling an engine of a vehicle, the humidity sensor exterior to a passenger compartment of the vehicle, the method comprising:
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determining whether to enable monitoring of the sensor based on a duration since vehicle operation; and in response to a determination to enable monitoring, comparing a signal from a second humidity sensor to a signal from the humidity sensor exterior to said passenger compartment of the vehicle to determine whether either of sensors has degraded. - View Dependent Claims (2, 3, 4, 5)
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Specification