Intake air-flow rate detecting apparatus and detecting method of internal combustion engine
AssigneesToyota Jidosha Kabushiki Kaisha, Denso Corporation
InventorsHarufumi Muto, Daisuke Kobayashi, Satoshi Furukawa
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Abstract
An intake air-flow rate detecting apparatus of an internal combustion engine according to the present invention has a thermal air-flow sensor for detecting an intake air-flow rate of the internal combustion engine, and a response lag compensator for compensating for a response lag of the air-flow sensor, using a first-order lag element concerning a heat release amount in the air-flow sensor. Since the response lag process is carried out on the dimension of the heat release amount, the response lag of the air-flow sensor can be compensated for with accuracy and the response lag of the thermal air-flow sensor can be compensated for with high accuracy.
Claims11
An intake air-flow rate detecting apparatus of an internal combustion engine, comprising:
- a thermal air-flow sensor for detecting an intake air-flow rate of the internal combustion engine;
- and
- response lag compensating means for compensating for a response lag of said air-flow sensor, using a first-order lag element based on a heat release amount in said air-flow sensor, wherein an output of the air-flow sensor is not adjusted.
An intake air-flow rate detecting method of an internal combustion engine, comprising:
- calculating a first-order lag element based on a heat release amount in a thermal air-flow sensor for detecting an intake air-flow rate of the internal combustion engine to compensate for a response lag of said air-flow sensor, wherein an output of the air-flow sensor is not adjusted.
Dependencies are inferred from the claim text.