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Combustion controlling system of hydrogen engine

A control system, engine technology, applied in the direction of engine control, gaseous engine fuel, fuel system, etc., can solve the problem of increasing the weight and volume of the engine

Inactive Publication Date: 2005-07-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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Problems solved by technology

This will require higher structural strength of the engine, resulting in increased engine weight and volume

Method used

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  • Combustion controlling system of hydrogen engine
  • Combustion controlling system of hydrogen engine
  • Combustion controlling system of hydrogen engine

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Embodiment Construction

[0022] combine image 3 and Figure 5 Introduce the specific control process of the present invention.

[0023] 1. When the engine is idling and under small load (0-30% rated load), the engine power is controlled by the throttle opening. At this time, the volume adjustment is performed, that is, when the accelerator pedal changes within the range of 0-30% (the position of the accelerator pedal indicates the size of the load), the throttle opening corresponds to change within the range of 0-100%. The accelerator position sensor transmits the signal indicating the load to the ECU (Electronic Control Unit), and calculates the appropriate fuel injection quantity based on this, and at the same time determines the throttle opening to control the mixture at the lowest stable concentration Φ 0 , the specific value is determined by the experimental calibration.

[0024] 2. At medium load (30%-70% rated load), the throttle valve is kept at 100% opening. At this time, the power enter...

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Abstract

A kind of hydrogen engine combustion control system and its control method are provided. The control of concentration of hydrogen-air mixture by throttle, distributive value, and EGR is divided into 3 steps (1) when an engine in idle or under 30% rated load, engine runs in a very low air / fuel ratio phi 0, the output power of the engine is controlled by throttle. (2) when in 30%-70% rated load, the concentration of mixture is adjusted from phi0 to 0.7. (3) when over 70% rated load, engine should run in equivalent air / fuel ratio, then output power is controlled by ERG.

Description

technical field [0001] The invention relates to a combustion control system of a hydrogen engine, which belongs to the field of mechatronics, and its technical solution is to provide a modern control model for the combustion system of a hydrogen engine. Background technique [0002] Ninety percent of the world's energy needs come from fossil fuels such as coal, oil and natural gas. More than half of all petroleum is consumed by internal combustion engines. With the increasingly serious environmental pollution, the increasing human demand for energy, and the increasing scarcity of fossil energy, people have higher and higher requirements for internal combustion engines, including the development and utilization of new technologies and new energy sources. [0003] Compared with traditional internal combustion engines, hydrogen engines have shown strong advantages: huge raw material reserves, and can be recycled; zero pollution in combustion, that is to say, the emissions of h...

Claims

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Application Information

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IPC IPC(8): F02B43/12F02D43/00
CPCY02T10/32Y02T10/30
Inventor 刘福水刘兴华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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