| 生物柴油-柴油发动机EGR系统的标定 |
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| 引用本文： | 彭美春,王海龙,吴晓伟.生物柴油-柴油发动机EGR系统的标定[J].拖拉机与农用运输车,2010,37(4):25-27. |
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| 作者姓名： | 彭美春 王海龙 吴晓伟 |
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| 作者单位： | 广东工业大学,广州,510090 |
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| 基金项目： | 江苏省动力机械清洁能源与应用重点实验室开放研究课题资助 |
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| 摘 要： | 进行生物柴油-柴油发动机EGR系统的标定研究。采用真空度控制EGR阀开度,实现废气再循环量的调节。通过发动机台架试验进行EGR阀真空度的匹配标定,采用点工况法进行试验方案设计,基于发动机的经济特性、动力特性和排放特性综合优化建立评价模型,求得最佳EGR阀真空度MAP。结果表明,在同一油门开度下,随着发动机转速的增加,最佳EGR阀真空度先升高后降低;同一转速下,随着发动机负荷的增加,最佳EGR真空度先增大后逐渐减少。
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| 关 键 词： | 生物柴油-柴油发动机 EGR EGR阀真空度 标定 评价模型 |
Calibration of EGR System on Biodiesel-Diesel Engine |
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| PENG Mei-chun,WANG Hai-long,WU Xiao-wei.Calibration of EGR System on Biodiesel-Diesel Engine[J].Tractor & Farm Transporter,2010,37(4):25-27. |
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| Authors: | PENG Mei-chun WANG Hai-long WU Xiao-wei |
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| Abstract: | This paper studied the calibration of EGR system of biodiesel-diesel engine by test.The point condition calibration method was used to design experimental programs,and the model of optimal evaluation based on engine dynamic,economic and emission characteristics is established.The best vacuum MAP of EGR valve was obtained.The results show that the optimal EGR valve vacuum increases at first and then reduces with engine speed increasing at the same throttle opening,and the optimal EGR vacuum also increases at first and then gradually reduces with engine load increasing at the same speed. |
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| Keywords: | EGR |
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