摘要
针对并联混合动力汽车在发动机和电动机工作过程中,需要根据路况进行能量分配和工作模式切换的问题,以并联混合动力汽车在状态切换过程中总转矩不发生大的波动为控制目标,提出了"转矩预分配+发动机调速+发动机转矩估计+电动机转矩补偿控制"的动态协调控制策略。借助dSPACE快速控制原型工具,搭建了试验台架,进行了稳态切换控制和动态协调切换控制试验。结果表明,在各种状态切换过程中,动态控制算法能有效控制混合动力系统的转矩波动,保证动力传递的平稳性。
It is necessary for Parallel Hybrid Electric Vehicle （PHEV） to distribute energy between engine and motor and to control state-switch during work. Aimed at keeping the total torque unchanging under state-switch, the dynamic control strategy/algorithm, which can be expressed as motor torque compensation for engine after torque pre-distribution, engine speed regulation and dynamic engine torque estimation, was put forward. The dynamic control algorithm was finally validated by steady and dynamic coordinated state- switch control experiments respectively which were achieved by means of building test-bench and getting help from the rapid control prototyping tool dSPACE. The result demonstrates that the dynamic control algorithm can effectively dampen torque fluctuations and ensures power transfer smoothly under various state-switches.
出处
《公路交通科技》
CAS
CSCD
北大核心
2010年第1期126-131,137,共7页
Journal of Highway and Transportation Research and Development
基金
国家高技术研究发展计划(八六三计划)资助项目(2005AA501220-3)
湖北省自然科学基金资助项目(2009CDB361)
湖北省机械传动与制造工程重点实验室资助项目(2007A07)
关键词
汽车工程
电动汽车协调控制
转矩补偿
台架试验
控制策略
automobile engineering
coordinated control for Hybrid Electric Vehicle
torque compensation
bench test
control strategy
