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Control system for hydrogen addition internal combustion engine

一种控制系统、内燃机的技术，应用在发动机控制、燃料喷射控制、内燃活塞发动机等方向，能够解决排放和运行性能恶化、不稳定燃烧等问题，达到抑止恶化、良好排放和运行性能的效果

Inactive Publication Date: 2007-05-16
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

This results in unstable combustion, resulting in worsened emissions and runnability

Method used

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  • Control system for hydrogen addition internal combustion engine
  • Control system for hydrogen addition internal combustion engine

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Embodiment Construction

[0017] Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same components are marked with the same reference numerals and will not be described again. The present invention is not limited to the Examples described below.

[0018] FIG. 1 shows the structure of a system equipped with a hydrogen addition internal combustion engine 10 according to an embodiment of the present invention. Cylinders of internal combustion engine 10 house pistons 12 that reciprocate therein. Internal combustion engine 10 also includes a cylinder head 14 . A combustion chamber 16 is formed between the piston 12 and the cylinder head 14 . Combustion chamber 16 communicates with intake port 18 and exhaust port 20 . The intake port 18 and the exhaust port 20 are respectively provided with an intake valve 22 and an exhaust valve 24 .

[0019] The intake port 18 is provided with a gasoline injection valve 26 that injects gasoline into the i...

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Abstract

Disclosed is a control system for a hydrogen addition internal combustion engine that uses hydrocarbon fuel and hydrogen gas as combustion fuel. The control system includes a canister (52) for adsorbing fuel vapor generated in a tank (34) for storing the hydrocarbon fuel; a purge VSV (66) for purging the fuel vapor into an intake port (18) of the hydrogen addition internal combustion engine in a predefined situation; hydrogen addition ratio setup means for setting the ratio of hydrogen gas addition to the hydrocarbon fuel; and hydrogen gas addition ratio adjustment means for increasing the ratio of hydrogen gas addition when the fuel vapor is purged into the intake port (18).

Description

technical field [0001] The invention relates to a control system for a hydrogen-added internal combustion engine. Background technique [0002] It is known that an internal combustion engine using gasoline as fuel reduces the amount of nitrogen oxides (NOx) in exhaust gas when hydrogen is supplied in addition to gasoline. For example, the technique disclosed in Japanese Patent Application Laid-Open No. 2004-116398 determines a hydrogen addition ratio to reduce NOx emissions, and operates an internal combustion engine by injecting gasoline and hydrogen according to the determined ratio. [0003] [Patent Document 1] [0004] Japanese Patent Application Unexamined Publication No. 2004-116398 [0005] [Patent Document 2] [0006] Japanese Patent Application Unexamined Publication No. Hei 6-200805 [0007] However, if the internal combustion engine includes a canister for absorbing evaporated fuel (fuel vapor) in a gasoline tank, the amount of evaporated fuel discharged from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/08F02D41/00F02M21/02F02M25/00
CPCF02B2275/16F02D19/0692F02D41/0027F02M25/089F02M25/12F02D41/3094F02D41/0032F02D19/0644Y10S123/12F02D19/081Y02T10/36Y02T10/30
Inventor 伊藤泰志
Owner TOYOTA JIDOSHA KK
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