吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (5): 1575-1582.doi: 10.13229/j.cnki.jdxbgxb20200544

• 车辆工程·机械工程 • 上一篇    

驾驶员意图识别的P2.5插混构型双离合器起步控制

罗勇1,2,3(),韦永恒2,黄欢2,肖人杰2,任淋2,崔环宇3   

  1. 1.中国汽车工程研究院股份有限公司 汽车噪声振动和安全技术国家重点实验室，重庆 401122
    2.重庆理工大学 汽车零部件先进制造技术教育部重点实验室，重庆 400054
    3.重庆青山工业有限责任公司 技术部，重庆 402761
  • 收稿日期:2020-07-19 出版日期:2021-09-01 发布日期:2021-09-16
  • 作者简介:罗勇（1983-），男，副教授，硕士生导师.研究方向：车辆动力传动与控制.E-mail：cquluo@126.com
  • 基金资助:
    国家自然科学基金项目(51305475);汽车噪声振动和安全技术国家重点实验室2017年度开放基金项目(NVHSKL-201702);重庆市教委科学技术研究项目(KJQN201801143);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0308);重庆理工大学车辆学院科研支撑项目(CL2019-16)

Starting control of P2.5 plug⁃in hybrid configuration dual⁃clutch based on driver's intention recognition

Yong LUO1,2,3(),Yong-heng WEI2,Huan HUANG2,Ren-jie XIAO2,Lin REN2,Huan-yu CUI3   

  1. 1.State Key Laboratory of Vehicle NVH and Safety Control，China Automotive Engineering Research Institute Co. ，Ltd. ，Chongqing 401122，China
    2.Key Laboratory of Advanced Manufacturing Technology for Automobile Parts，Chongqing University of Technology，Chongqing 400054，China
    3.Department of Technology，Chongqing Tsingshan Industrial Co. ，Ltd. ，Chongqing 402761，China
  • Received:2020-07-19 Online:2021-09-01 Published:2021-09-16

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摘要：

双离合变速器（DCT）在单离合器起步过程中，离合器片温升明显、滑摩功不均匀，严重影响其使用寿命。针对此种情况，基于搭载DCT的P2.5插电式混合动力构型，结合起步动力学分析，考虑驾驶员起步意图，提出了一种基于多层模糊控制的起步策略。根据加速踏板开度及其变化率识别驾驶员起步意图，结合起步意图推导离合器结合油压，控制传递扭矩，同时根据驾驶员起步意图判断离合器的分离阈值。结果表明：相比单离合器起步，双离合联合起步能有效平衡两个离合器滑摩功的同时，起步时间最高缩短12.6%，冲击度最高降低14.0%。

关键词: 车辆工程, P2.5插电式混合动力构型, 湿式双离合变速器, 多层模糊控制器, 驾驶员起步意图识别

Abstract:

During the starting process of single clutch， the temperature rise of clutch plate is obvious and the sliding friction power is uneven， which seriously affects the service life of DCT. Based on the configuration of P2.5 plug-in hybrid electric vehicle equipped with DCT， combined with the starting dynamics analysis and considering the driver's starting intention， a starting strategy based on multi-layer fuzzy control is proposed. The driver's starting intention is identified according to the accelerator pedal opening and its change rate， and the clutch combination oil pressure is deduced according to the starting intention to control the transmission torque， at the same time， the clutch separation threshold is judged according to the driver's starting intention. The results show that： compared with single clutch starting， the starting time can be shortened by 12.6% and the impact degree can be reduced by 14.0% while effectively balancing the sliding work of the two clutches.

Key words: vehicle engineering, P2.5 plug-in hybrid configuration, wet dual clutch transmission, multilayer fuzzy controller, driver's starting intention recognition

中图分类号: 

  • TH13

图1

基于DCT的P2.5插电式混合动力系统结构简图"

图2

离合器油压/传递扭矩图"

图3

基于P2.5构型的DCT系统动力学简化模型"

图4

双离合器联合起步过程控制逻辑简图"

图5

驾驶员起步意图验证仿真"

图6

加速踏板开度15%起步过程仿真结果"

图7

加速踏板开度15%起步过程仿真结果"

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