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汽车安全与节能学报

汽车安全与节能学报 ›› 2013, Vol. 4 ›› Issue (3): 279-278.DOI: 10.3969/j.issn.1674-8484.2013.03.013

• 汽车节能与环保 • 上一篇    

干式双离合器变速器换挡过程的转矩协调最优控制

赵治国，王 琪，陈海军，刁威振   

  1. 同济大学 新能源汽车工程中心，上海 201804，中国
  • 收稿日期:2013-05-09 出版日期:2013-09-25 发布日期:2013-06-27
  • 作者简介:赵治国（1971—），男（汉），陕西，副教授、博士生导师。
  • 基金资助:

    国家自然科学基金资助项目（51275355）

Torque coordinating optimal control for dry dual clutch transmission in shifting process

ZHAO Zhiguo, WANG Qi, CHEN Haijun, DIAO Weizhen   

  1. Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China
  • Received:2013-05-09 Online:2013-09-25 Published:2013-06-27

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摘要： 对于某一自主开发汽车的六速干式双离合器变速器（DDCT），提出了对不同驾驶意图、分阶段
采取不同措施的转矩协调最优控制策略：在转矩相阶段，运用二次型最优控制确定了离合器转矩变化
率；在惯性相阶段，采用发动机点火参数与燃油供给调节控制以缩短惯性相时间；在微滑摩阶段及需
求转矩切换阶段，建立了体现驾驶意图的控制因子映射。并在Matlab/Simulink 软件平台上，搭建了
DDCT 换挡过程模型，进行仿真试验。结果表明：换挡过程中的换挡冲击在－ 2 m/s3 以内，产生的总
滑摩功在2 kJ 以内；因而，该控制策略能体现驾驶员的换挡意图，且满足换挡品质需求。

关键词: 汽车变速器, 干式双离合器变速器（DDCT）, 换挡过程, 转矩协调, 二次型最优控制

Abstract: A torque coordinating optimalcontrol strategy was developed using different driving intentions in
different shifting process phases for a six-speed Dry Dual-Clutch-Transmission (DDCT) of a self-developed car.
A simulation model was set up on the Matlab/Simulink software platform and then used to simulate the control
strategy for DDCT shifting process. The sub-divided phases included the quadratic optimal control adopted in
torque phase; the ignition parameters and fuel supply controlin inertia phase; the control factor mapping method,
which reflects driving intension, both in micro-slipping phase and in demanded torque switching phase. The
results show that shift jerks are within -2 m/s3 while the total frictional energy losses are within 2 kJ in shift
process. Therefore, this control strategy reflects driving intentions and meets the demand of shift quality.

Key words: automotive transmission, dry dual clutch transmission (DDCT), shifting process, torque coordinating, quadratic optimal control

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