Motor-Generator Control of an Electro-mechanical Variable Transmission for a Hybrid Electric Vehicle
Motor-Generator Control of an Electro-mechanical Variable Transmission for a Hybrid Electric Vehicle
复制标题
混合动力电动汽车机电无级变速器的电动发电机控制
DOI：
10.1109/sice.2006.315113
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Hyunsoo Kim
中科院分区：
文献类型：
--
作者：
Jeongmin Kim;Namdoo Kim;S. Cho;Hyunsoo Kim
EVT（电动机械变速器）使用行星齿轮组以高效的方式组合其动力源（发动机和电动发电机）。用网络分析法分析了EVT的功率特性。通过网络分析发现，EVT在高速范围内存在功率环流，应在中低速范围内运行，导致系统效率下降。以零排放汽车（ZEV）到混合动力汽车（HEV）的模式转换速度、油门开度和电池SOC等控制参数为基础，提出了电动发电机控制算法。仿真结果表明，该控制算法能够为混合动力汽车提供最佳的发动机运行工况，以获得最佳的燃油经济性
EVT (electro-mechanical variable transmission) combines its power sources (engine and motor-generator) in a highly efficient way using planetary gear sets. Power characteristic of the EVT is analyzed by network analysis. From the network analysis, it is found that the EVT should be operated in low to medium speed range due to the power circulation in high speed range, which causes the decreased system efficiency. A motor-generator control algorithm is presented using the control parameters such as ZEV (zero emission vehicle) to HEV (hybrid electric vehicle) mode change velocity, accelerator pedal opening and battery SOC. Based on the dynamic model of the EVT HEV powertrain, a dynamic performance simulator is developed using Cruise. Simulation results show that the control algorithm is able to provide the optimal engine operation for the best fuel economy of the HEV