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Control method and device for injection system of hydrogen fuel internal combustion engine

A technology of injection system and control method, which is applied in the direction of charging system, engine control, internal combustion piston engine, etc., can solve the problem of blocking the air intake of the intake pipe, and achieve the effect of optimizing combustion characteristics

Active Publication Date: 2016-07-20
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

[0004] The object of the present invention is to provide a method and device for controlling the injection system of a hydrogen fuel internal combustion engine, so as to solve the problem of blocking the air entering the intake pipe when the air supply pipe of the existing internal combustion engine spraying system supplies hydrogen

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  • Control method and device for injection system of hydrogen fuel internal combustion engine
  • Control method and device for injection system of hydrogen fuel internal combustion engine
  • Control method and device for injection system of hydrogen fuel internal combustion engine

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Embodiment Construction

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Embodiment of the control method of a hydrogen fuel internal combustion engine injection system of the present invention

[0030] The control method of the hydrogen fuel internal combustion engine injection system of the present invention adopts an intermittent multiple control mode, by dividing the maximum total hydrogen injection pulse width of the hydrogen fuel internal combustion engine injection system, so that the maximum total hydrogen injection pulse width is controlled during the duration of intake air. It is divided into several hydrogen injection sections, and the interval between adjacent hydrogen injection sections is the non-hydrogen injection section. The injection period of the hydrogen fuel internal combustion engine injection system is controlled according to the division method of the above hydrogen injection sectio...

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Abstract

The invention relates to a control method and device for an injection system of a hydrogen fuel internal combustion engine, and belongs to the technical field of hydrogen fuel internal combustion engine control. The maximum total hydrogen injection pulse width of the injection system of the hydrogen fuel internal combustion engine is divided and is divided into a plurality of hydrogen injection segments in the gas inlet duration, and interval time periods between the hydrogen injection segments are non-hydrogen-injection segments. The injection time frames of the injection system of the hydrogen fuel internal combustion engine are controlled according to the division manner of the hydrogen injection segments, so that the injection system of the hydrogen fuel internal combustion engine carries out intermittent injection many times in the gas inlet duration, the problem of inflow of air blocking a gas inlet pipe is effectively solved, and the combustion characteristic of the engine is considered and optimized.

Description

technical field [0001] The invention relates to a control method and device for a hydrogen fuel internal combustion engine injection system, belonging to the technical field of hydrogen fuel internal combustion engine control. Background technique [0002] The density of hydrogen is low. When hydrogen is supplied through the intake pipe, the "expansion" of hydrogen gas supplied to the intake pipe from the injection system will appear to varying degrees, and the limited volume of the intake pipe will "block" the entry of air into the intake pipe; in severe cases , and even block the air intake pipe from entering, causing the engine power to drop, or even flameout. It is very difficult to supply the hydrogen that the engine needs to achieve the same power as gasoline and other fuels. [0003] There are obvious differences in the physical and chemical characteristics of hydrogen fuel and petroleum fuel. In particular, the intake pipe type low-pressure hydrogen injection system...

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Application Information

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IPC IPC(8): F02D19/02F02M21/02
CPCF02D19/021F02M21/0206Y02T10/30
Inventor 杨振中王丽君郭树满段俊法张威刘栋
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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