...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IFAC PapersOnLine >Improve Cylinder-to-Cylinder Consistancy and Reduce Cycle-to-Cycle Variations of a Diesel Engine Using Closed-loop Control of Fuel Path Input Variables
【24h】

Improve Cylinder-to-Cylinder Consistancy and Reduce Cycle-to-Cycle Variations of a Diesel Engine Using Closed-loop Control of Fuel Path Input Variables

机译：使用燃油路径输入变量的闭环控制，改善气缸间的一致性并减少柴油机的周期变化

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents that the dwell time between two consequent injection pulses of a diesel engine that is equipped with a common rail fuel injection system has big impact on the combustion process. It is because the change of dwell time has influence on the injection pressure for the next injection. This phenomenon was then used in implementing a Indicated Mean Effective Pressure (IMEP) closed-loop control system to reduce the cycle-to-cycle combustion variations. The injected fuel quantity based IMEP closed-loop control system was also implemented and tested on the test diesel engine. Its disturbance rejection ability has been experimentally investigated to confirm that with this IMEP closed-loop control, diesel engine has strong disturbance rejection ability which implies that a speed governor with IMEP closed-loop control being the inner loop will improve engine speed control performance. Such two-loop speed control system was implemented and tested on the test engine in the lab. The inner IMEP closed-loop control for each cylinder has the same setpoint value which was calculated from the outer loop speed controller. This will increase the combustion consistency among all cylinders.
机译：本文提出，配备共轨燃油喷射系统的柴油发动机的两个随后喷射脉冲之间的停留时间对燃烧过程有很大影响。这是因为保压时间的变化会影响下一次喷射的喷射压力。然后，此现象用于实现指示平均有效压力（IMEP）闭环控制系统，以减少循环之间的燃烧变化。基于喷射燃油量的IMEP闭环控制系统也已在测试柴油机上实施和测试。已通过实验研究了其抗扰能力，以确认通过此IMEP闭环控制，柴油发动机具有强大的抗扰能力，这意味着以IMEP闭环控制为内环的调速器将改善发动机速度控制性能。这样的两回路速度控制系统已在实验室的测试引擎上进行了测试。每个气缸的内部IMEP闭环控制具有相同的设定值，该设定值是由外部回路速度控制器计算得出的。这将增加所有气缸之间的燃烧一致性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号