东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (3): 106-114.DOI: 10.12068/j.issn.1005-3026.2025.20239043

• 机械工程 • 上一篇    下一篇

非公路车辆混动变速器切换过程可拓优化控制

赵鑫鑫(), 李兵, 杨珏()   

  1. 北京科技大学 机械工程学院,北京 100083
  • 收稿日期:2023-08-15 出版日期:2025-03-15 发布日期:2025-05-29
  • 作者简介:赵鑫鑫(1987—),女,北京人,北京科技大学副教授
    第一联系人:杨 珏(1975—),男,山东聊城人,北京科技大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(52275082);中央高校基本科研业务费专项资金资助项目(QNXM20220029)

Extensible Optimization Control of Hybrid Transmission Switching Process for Off-road Vehicles

Xin-xin ZHAO(), Bing LI, Jue YANG()   

  1. School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China. cn

摘要:

混合动力非公路车辆具备多种工作模式,模式切换过程不合理的控制策略会影响离合器的使用寿命及车辆的平顺性.以功率分流式混动专用变速箱为研究对象,利用可拓控制算法建立矛盾特征间的转化关系,通过调整模型预测控制(MPC)的权重矩阵干涉可拓控制器,将矛盾特征量转化.建立非公路车辆传动系统仿真模型,结果显示采用可拓控制器的模式切换过程车辆冲击度小于10 m/s3,比MPC减小约20%,滑摩功约为18 kJ,冲击度和滑摩功效果较传统MPC均有所改善,可拓控制提高了非公路车辆模式切换的品质.

关键词: 混动变速器, 模型预测控制, 可拓控制, 模式切换, 滑摩功

Abstract:

Hybrid off-road vehicles include multiple operating modes, and the inappropriate control strategies will impact the smoothness and clutch life when vehicles switch operating modes. Taking the power split hybrid gearbox as the research object, the transformation relationship of contradictory features is established using the extensible control algorithm. The contradictory feature quantities are transformed by adjusting the weight matrix of model predictive control (MPC) to interfere with the extensible controller. The simulation model of the transmission system of off-road vehicles is established, and the results show that the jerk of the vehicle in the mode switching process using the extensible controller is less than 10 m/s3, which is about 20% lower compared with MPC. The friction work of clutches is about 18 kJ, and the jerk and sliding work effect are improved compared with the traditional MPC. Extensible control improves the smoothness of the mode switching process and enhances the quality of mode switching for off-road vehicles.

Key words: hybrid transmission, model predictive control, extensible control, mode switching, friction work

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