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Control device

A technology for control devices and fuel injection valves, applied in electrical control, mufflers, exhaust devices, etc., can solve problems such as exhaust emissions and poor driving performance

Active Publication Date: 2021-07-23
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With regard to fuel injection valves, it is known that variation in injection quantity occurs due to individual differences or deterioration of fuel injection valves, and if the injection quantity varies, exhaust emissions and drivability may deteriorate

Method used

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Embodiment Construction

[0021] Hereinafter, this embodiment will be described with reference to the drawings. In order to make the description easier to understand, the same components are assigned the same reference numerals as much as possible in each figure, and overlapping descriptions are omitted.

[0022] refer to figure 1 The control device 100 according to one embodiment of the present invention will be described. The control device 100 is installed in a part of the vehicle, and performs control related to combustion of fuel.

[0023] The vehicle includes an internal combustion engine 10 , an intake pipe 20 , an exhaust pipe 30 , and a fuel device 40 .

[0024] The internal combustion engine 10 is a 4-cycle reciprocating engine including a plurality of cylinders. The internal combustion engine 10 mixes air and liquid fuel in a combustion chamber 11 to generate an air-fuel mixture. The air-fuel mixture is ignited by ignition of the spark plug 12, and the piston 13 is driven by combustion. ...

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Abstract

A control device (100) is provided with a drive unit (110) which supplies electric power to a fuel injection valve (50) for supplying fuel to a combustion chamber of an internal combustion engine, to drive the opening of the valve, and an adjusting unit (130) which adjusts a fuel injection quantity of the fuel injection valve, wherein the adjusting unit learns the fuel injection quantity of the fuel injection valve when an NOx purge for reducing and purifying an NOx storage catalyst is executed.

Description

[0001] Cross-reference of related applications [0002] This application claims priority based on Japanese Patent Application No. 2018-230991 for which it applied on December 10, 2018, and the entire content of this patent application is incorporated in this specification by reference. technical field [0003] The invention relates to control devices. Background technique [0004] An internal combustion engine is equipped with a fuel injection valve for injecting fuel into a combustion chamber for each cylinder. The valve bodies of these fuel injection valves are respectively driven in response to control signals supplied from a control device, and the injection amount of fuel is adjusted by switching between valve opening and valve closing states. With regard to fuel injection valves, it is known that variation in injection quantity occurs due to individual differences or deterioration of fuel injection valves, and if the injection quantity varies, exhaust gas emission and...

Claims

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Application Information

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IPC IPC(8): F01N3/08F01N3/20F02M51/06F02M61/10F02D41/04F02D41/20F02D41/34F02D45/00
CPCF01N3/20F02D41/20F02D41/34F02M61/10F01N3/08F02M51/06F02D41/0275F02D2041/2051F02D2041/2055F02D2041/2058F02D2200/0616F02D2200/0602F02D41/068F02D41/2467Y02T10/40F02D41/1475F02D41/2445F02D41/2448F02D2250/31F02D41/247
Inventor 田中诚和田贤健
Owner DENSO CORP
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