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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsMasahiro Sato, Yoshihisa Iwaki, Masaki Ueno, Shusuke Akazaki, Yuji Yasui
Estimating the term…
An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.
An adsorbent state determining apparatus for determining a state of an adsorbent arranged in an exhaust system of an internal combustion engine for adsorbing hydrocarbons within exhaust gases, said apparatus comprising:
Dependencies are inferred from the claim text.