双模式机电复合无级传动系统通过机电功率耦合实现动力传递和无级传动，其机电功率分配受耦合约束影响，分配与动态控制难度很大。在普遍采用的基于发动机最优燃油经济性曲线的功率管理策略基础上，通过功率平衡方程与试验数据分析控制策略中用于功率分配计算的效率模型和功率部件主要是发动机响应延迟对于动态过程中系统工作和功率分配的影响，提出基于系统中可测量的发动机转速的机电功率协调策略与基于母线电压的电动功率协调策略，对功率分配进行基于可测量的动态闭环控制，保证系统工作稳定和电功率平衡。搭建机电复合无级传动(Electro-mechanical variable transmission, EVT)系统试验台架，试验结果表明，研究的机电复合无级传动动态功率分配策略通过闭环控制可实现对机电功率更为精确的控制与调节，实现系统部件稳态目标工作点调节与满足动力性要求的转矩输出的合理折中，保证了系统工作稳定和电功率平衡。

The two-mode electro-mechanical variable transmission(EVT) system can realize the power transmitting variable transmission by the split and couple of the electric and mechanical power. The electric and mechanical power is limited by the coupled restriction, and its distribution and dynamic control is quite difficult. Based on the power management strategy which is optimal fuel curve of engine-based and widely used, the affect to the system operating and power distributing of the efficiency model used to the calculation of power distribution and the response delay of the power components especially the engine is analyzed by the power balance equation and the test data. The engine speed based cooperation strategy of electric and mechanical power and the bus voltage based cooperation strategy of electric-driving power are proposed, which can ensure the system stability and electric power balance by the closed-loop control based on the measured variables. The EVT system test bench is established and the bench test results indicate that the researched dynamic power control strategy can realize the precise control and regulation of the multi-power by the closed-loop control, which can realize the optimal tradeoff of the regulation of the static-state target and the dynamic torque output required by the dynamic performance index, and ensure the system stable operation and the electric power balance.