Apparatus and method for controlling internal combustion engine

A technology of a control device and a control method, which is applied to engine control, fuel injection control, internal combustion piston engines, etc., and can solve problems such as reduced engine handling performance and emission performance
CN1704575AInactive Publication Date: 2005-12-07HITACHI LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HITACHI LTD
Publication Date
2005-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a method for controlling the motor by controlling the air input, characterized in that: in the combustion engine with changeable air gate mechanism, checking the operation characteristics of air input gate, and basing on the above step calculating the air input controlled by air gate, then calculating the variation( change rate, change amount) between the later computational value of air input and former one, and calculating the latest engine controlling variable based on the said change and engine controlling variable set in advance, then outputting the latest engine controlling variable to execute the control of engine.
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Description

technical field

[0001] The present invention relates to a control device and a control method for an internal combustion engine, wherein the internal combustion engine is provided with a variable valve mechanism for changing the valve operating characteristics of an intake valve, and in particular, the present invention relates to a method for accurately calculating engine control according to the intake air quantity of a cylinder. variable technology. Background technique

[0002] Heretofore, there has been disclosed an engine control device in which fuel injection is calculated based on an intake air amount calculated based on an air amount detected by an air amount detection means such as an air flow meter and a detected intake air pressure amount (refer to Japanese Unexamined Patent Publication No. 11-62639).

[0003] However, an engine has been developed in which the intake air amount control is performed by changing the valve operation characteristic of the intake val...

Claims

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