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Method and device for controlling blending gas of electric-control diesel engine

A diesel engine and control method technology, applied in engine control, electrical control, fuel injection control, etc., can solve problems such as inability to achieve real-time diagnosis, and achieve the effect of reducing fuel consumption and reducing exhaust emissions

Inactive Publication Date: 2010-06-30
BAZHOU HUAWEI ENGINE TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing blending system cannot achieve real-time diagnosis
[0007] As can be seen from the above, there are defects in the prior art in the aspect of diesel engine blending combustion gas

Method used

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  • Method and device for controlling blending gas of electric-control diesel engine
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  • Method and device for controlling blending gas of electric-control diesel engine

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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] For convenience, before explaining the method and device, first introduce the mechanical structure of the electronically controlled diesel engine blending control system in the embodiment of the present invention. figure 1 As shown, it includes a gas cylinder 101, a vaporizer 102, a flow meter 103, a filter 104, a high-pressure solenoid valve 105, a pressure reducer 106, a gas injector 107, and a mixer as indicated in the figure.

[0018] The embodiment of the present invention provides an electronically controlled diesel engine blending fuel gas control method, the process is as follows figure 2 Shown, including:

[0019] Step 201: Collect the original diesel fuel injection signal, including fuel injection timing information, fuel injection tim...

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PUM

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Abstract

The invention relates to a method and a device for controlling blending gas of an electric-control diesel engine. The invention can judge the running state of the engine according to rotation speed signals, throttle pedal signals, original diesel spraying pulse width signals and the like, and reasonably set the blending ratio to enable the diesel and gas ratio to achieve the optimum proportion state, therefore the diesel consumption rate and waste gas exhaust are reduced on the premise of ensuring the dynamic property of the engine. The method for controlling blending gas of an electric-control diesel engine comprises a quick and moderate control method for diesel and gas switching, a real-time accurate control method for gas amount and diesel amount, a self-learning control method for bad working conditions and a fault diagnosis function with fault diagnosis and alarming. The device for controlling blending gas of an electric-control diesel engine comprises a signal acquisition module, a diesel spraying amount acquisition and control module, a natural gas supply control module, a microcontroller, a CAN communication module and a serial communication module.

Description

Technical field [0001] The invention relates to an engine control system, in particular to a method and a device for controlling blended fuel gas of an electronically controlled diesel engine. Background technique [0002] Currently, energy and environmental pollution problems are becoming more and more prominent. While automobile fuel consumption has become a huge cost of automobile operation, automobile exhaust has increasingly become a major factor in urban air pollution. In order to reduce automobile operating costs, save energy and reduce environmental pollution from automobile exhaust, it is on the basis of ensuring the original power of the engine. Hybrid vehicles that use gas as an energy source for mixed combustion have developed rapidly. Gas has better fuel economy than diesel, and has lower exhaust pollutant content. Among them, the blending control method and device directly affect the two major indicators of hybrid vehicle engine exhaust emissions and fuel economy....

Claims

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Application Information

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IPC IPC(8): F02D41/00F02D41/22F02D41/26
Inventor 任宪丰蔡文远吕国怀陈德岭漆卫东
Owner BAZHOU HUAWEI ENGINE TECH
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