摘要
针对基于混联式混合动力各部件的特性,在实现柴油机、驱动电机、蓄电池、发电机和传动系统最佳匹配的前提下,设计了混合动力系统动态转矩协调控制策略。以转矩为控制变量,通过总的转矩需求和柴油机万有特性曲线确定状态切换的条件及柴油机和电动机的目标转矩。在Matlab/Simulink平台下,进行了中国城市工况的动力性仿真及试验。可以看出:本文提出的控制策略能够满足驱动电机快速起动,低速转矩补偿,加速提供辅助动力,充电功率恒定等要求;瞬态工况时通过驱动电机助力,缩短了工况过渡时间;稳态工况时通过电机转矩补偿,实现了无转矩波动的状态切换,改善了状态切换过程中动力传递的平顺性;柴油机和驱动电机工作点集中在高效率区域,SOC值维持在最佳工作区域。
Based on the series-parallel hybrid working-principle and its character,aiming at the characteristics of each part of system of motor and circulating the work condition,the dynamic torque coordination controlling strategy of motor with engine,batteries,generator and driving system is designed for the best parameter.According to the design target of series-parallel hybrid system,the homologous dynamic torque coordination controlling strategy is put forward.And the implement of dynamic torque coordination controlling strategy is simulated and researched under the different work conditions while a simulation test and experiment on condition of China city driving cycle is conducted based on Matlab /Simulink.The result shows that the strategy meets the requirements of fast starting,compensating torque at low speed and constant charging power.Both diesel and motor are working on the region of high efficiency.And SOC is remained in the best working area.
出处
《农业装备与车辆工程》
2012年第10期1-5,共5页
Agricultural Equipment & Vehicle Engineering
基金
苏州市工业产业转型升级新产品产业化项目资助(201106140004)
关键词
混联式
混合动力
动态转矩协调
控制策略
series-parallel
Hybrid
dynamic torque coordination
controlling strategy
