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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsMasaki Ueno, Kei Machida, Tetsuo Endo, Hideharu Yamazaki
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A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintain a high detection accuracy of the humidity sensor. The temperature control apparatus is configured to control the temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting the humidity within the exhaust passage. The temperature control apparatus comprises a heater for heating the sensor element, a temperature sensor for detecting the temperature of the sensor element, and an ECU for controlling a heating amount of the heater to bring the detected temperature of the sensor element to a first predetermined temperature during an operation of the internal combustion engine.
A temperature control apparatus for controlling a temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting a humidity within said exhaust passage, in order to determine deterioration of an adsorbent for adsorbing hydrocarbons in an exhaust gas, said apparatus comprising:
Dependencies are inferred from the claim text.