文档介绍：第 42 卷第 1 期
2011 年 1 月
中南大学学报(自然科学版)
Journal of Central South University (Science and Technology)
双离合器混合动力系统瞬态工况的仿真
何建辉,杨林
(上海交通大学机械与动力工程学院,上海,200240)
Jan. 2011
摘
要: 针对目前单轴并联式(ISG)混合动力系统转矩响应慢和能量回收效率低等不足,提出一套新型的混合动
力总成方案。该方案采用较大功率的电动机,在发动机与电机间安装 1 个电控自动离合器,电机与变速器之间安
装 1 个手动离合器。根据汽车动力学理论计算车辆在中国典型城市的道路动力需求,建立瞬态工况下双离合器 ISG
混合动力汽车的 Simulink 仿真模型,并针对汽车的瞬态加速工况,通过离合器来协调转矩的分配。仿真及实验结
果表明:采用该方案改善了状态切换过程的平顺性,提高了瞬态过程中的转矩响应速度,缩短了加速耗时。
关键词:混合动力;双离合器;动力系统;瞬态;仿真
中图分类号:
文献标志码:A
文章编号:1672−7207(2011)01−0073−07
Simulation of transient conditions on double
clutch hybrid power system
HE Jian-hui, YANG Lin
(School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
Abstract: Based on the fact that the single axis parallel hybrid systems in torque response is late and energy recovery
efficiency is low, a set of new hybrid power scheme was proposed. This scheme adopted a higher power of the motor and
an electric automatic clutch between the engine and motor, a manual clutch was fixed between motor and transmission.
Based on the theory of vehicle dynamics in typical Chinese urban roads and so on, many kinds of needed motivations
were calculated, and a simulink model of the double-clutche hybrid vehicle under the transient condition was established,
and in the vehicle’s transient accelerate condition, coordinated torque was distributed through the clutch. Simulation and
experimental results indicate that the new scheme improves state-transition processes smoothly, improves the transient
process of the torque response speed, and shortens the accelerating time.
Key words: hybrid electric vehicle; double-clutch; power system; transient; simulation
随着化石燃料的日益枯竭,混合动力汽车作为目
合动力总成方案。
[1−3]
。
而装备有起动发动一体电机(Integrated starter and
generator, ISG)的混合动力系统具有结构简单、易实现
等优点,成为混合动力未来的方向之一,但 ISG 混合
动力汽车在制动能量回收和转矩响应速度方面还存在
[4−5]
点,本文作者提出一套配有 2 个离合器的新型 ISG 混
1 动力系统结构及特点
设计了 2 个离合器:在柴油机和 ISG 电机之间布
置自动离合器,在 ISG