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汽车安全与节能学报

JASE ›› 2019, Vol. 10 ›› Issue (4): 492-501.DOI: 10.3969/j.issn.1674-8484.2019.04.011

• 汽车节能与环保 • 上一篇    下一篇

电辅助涡轮增压柴油机进气氧气质量分数的主动抗扰控制

陈韬，李少华，宋康，谢辉   

  1. （内燃机燃烧学国家重点实验室，天津大学，天津 30007，中国）
  • 收稿日期:2019-01-05 出版日期:2019-12-31 发布日期:2020-01-01
  • 基金资助:
    国家重点研发计划 (2016YFB0101402)。

Active disturbance rejection control of e-Turbo diesel engine intake oxygen concentration

CHEN Tao, LI Shaohua, SONG Kang, XIE Hui   

  1. (State Key Laboratory of Combustion of Internal Combustion Engines, Tianjin University, Tianjin 30072, China)
  • Received:2019-01-05 Online:2019-12-31 Published:2020-01-01

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摘要： 为提高电辅助涡轮增压柴油机对进气氧气质量分数控制的响应速度，设计了一种主动抗扰控 制算法。建立了面向控制的进排气氧气质量分数观测算法，作为虚拟氧传感器使用。利用GT-Power 柴油机模型，对控制算法进行仿真测试。进行了台架实验平台的测试。结果表明：在目标进气氧气质 量分数仿真变化中，相较于传统比例 -积分 - 微分 (PID) 控制，该主动抗扰控制算法的平均响应时间 降低了 0.86 s；在发动机瞬态实验中，进气氧气质量分数控制响应迅速，与目标值的最大相对误差为 2.33%。因而，该主动抗扰控制算法，可获得柴油机进气氧气质量分数的快速响应。

关键词: 柴油机, 电辅助涡轮增压器, 进气氧气质量分数观测, 主动抗扰控制

Abstract: An active disturbance rejection control algorithm was designed to have a better control ability with faster response speed to intake oxygen concentration of electrically- assisted-turbocharger (e-Turbo) diesel engine. An observer of intake and exhaust oxygen concentration for control was established being used as a virtual oxygen sensor. The control algorithm was tested and evaluated on a precisely calibrated GT-Power diesel engine model. The results show that the average response time decreases by 0.86 s comparing with traditional proportion-integral-differential (PID) control during the changes of the target intake oxygen concentration in the simulation. The maximum relative error to the target is 2.33% during the transient process at engine tests. Therefore, the active disturbance rejection control algorithm achieves a rapid control of intake oxygen concentration.

Key words: diesel engine, electrically assisted turbocharger (e-Turbo), intake oxygen concentration observer, active disturbance rejection control