The Development of a Dual Fuel Engine Electronic Control Unit and Control Strategy

doi:10.7652/xjtuxb201405002

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The Development of a Dual Fuel Engine Electronic Control Unit and Control Strategy

更新时间：2025-07-09

- The Development of a Dual Fuel Engine Electronic Control Unit and Control Strategy
- Vol. 48, Issue 5, Pages: 8-14+26(2014)
- 作者机构：
  
  西安交通大学内燃机研究所,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201405002
  CLC： TK421.4
- Online First：10 May 2014，
  
  Published：2014
- 稿件说明：
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The Development of a Dual Fuel Engine Electronic Control Unit and Control Strategy[J]. 2014, 48(5): 8-14+26.
DOI：

The Development of a Dual Fuel Engine Electronic Control Unit and Control Strategy[J]. 2014, 48(5): 8-14+26. DOI： 10.7652/xjtuxb201405002.

摘要

为了改善传统的基于标定数据的柴油/天然气双燃料发动机控制系统性能

开发了天然气进气歧管顺序喷射电子控制单元(ECU)

提出了基于原柴油机喷油脉宽信号实时采集的燃料等热值替代控制策略

并在一台经过双燃料改装的高压共轨发动机上对该系统的引燃油喷射、天然气喷射、原机喷油脉宽信号实时采集等功能

以及等热值替代的控制策略进行了实验验证。结果表明:与基于标定数据的控制系统相比

所提出的控制单元及其相应控制策略可以有效改善双燃料发动机的动态控制性能; 该系统设计正确

工作稳定。在此基础上

研究了天然气喷射正时对双燃料发动机总碳氢(THC)排放的影响

实验表明:天然气喷射正时变化对双燃料发动机THC排放有显著影响

通过实时控制天然气喷射正时

可以避免过早喷入天然气

降低双燃料发动机的THC排放

特别是在中小负荷下

排放的最大降幅可达32.6%。

Abstract

A natural gas sequential injection dual fuel electronic control unit(ECU)was developed for the purpose to improve the performance of the dual fuel engine control system according to the calibration data. And a real-time diesel equivalent heating value substitution control strategy following the signal of original diesel injection pulse width was also proposed. A direct injection engine equipped with high pressure common rail system was converted into diesel/natural gas dual fuel engine and experiments were conducted to validate the functions of pilot diesel injection

natural gas injection

original diesel injection pulse width signal acquisition and the real-time equivalent heating value substitution control strategy. It indicates that the developed dual fuel ECU works stably and the dynamic performance of the dual fuel engine can be improved dramatically. The influence of natural gas injection timing on the total hydrogen carbon(THC)emissions is discussed

the significant influence on the THC emissions is found in the corresponding experiments. Adjusting natural gas injection timing in real-time facilitates avoiding early injection of natural gas

the THC can be reduced significantly. Especially

under light and medium loads

and the maximum reduction gets up to 32.6%.

关键词

Keywords

references

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WAGEMAKERS, A. M, LEERMAKERS C. A. J. Review on the effects of dual-fuel operation, using diesel and gaseous fuels, on emissions and performance, SAE 2012-01-0869[R]. Warrendale, PA, USA: SAE, 2012.

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Internet homepage westport[EB/OL].[2013-09-08]. http:∥www.westport.com/is/core-technologies/hpdi.

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