鉴于电磁转差离合器动力传递零摩擦、无冲击及可调速等优点，提出了一种新型飞轮储能结构 － 电磁耦合式飞轮储能系统。文中阐述了减速状态 (制动或滑行) 下，装有飞轮储能装置汽车的能量转换路线; 设计电磁转差离合器双闭环控制器，实现磁极轴转速的快速响应。基于 Simulink 软件定量分析制动过程中电磁耦合式飞轮储能装置的能量回收效率及其影响因素，并搭建模拟运行试验平台，验证电磁转差离合器无级调速对能量回收效率的影响。结果表明: 不同制动初速度下飞轮储能装置能量回收效率稳定在 33. 6%，Simulink 模型中电磁耦合式飞轮储能装置及控制器是合理的; 电磁转差离合器调速时，能量回收效率可达到最高。

A new type of flywheel energy storage structure-electromagnetic coupling flywheel energy storage system (EC-FESS) was proposed by considering the advantages of zero friction，none impact and adjustable speed of elec-tromagnetic slip clutch (ESC)． Power transmission route in vehicle deceleration state (braking or sliding) with EC-FESS was analyzed． Double closed-loop controller was designed to achieve the rapid response of magnetic pole shaft． Ｒecovery efficiency and its influencing factors of EC-FESS were quantitatively analyzed based on Simulink software． Through simulated test in platform，the influence of ESC stepless speed regulation on the energy recovery efficiency was verified． The results show that the stable value of energy recovery efficiency of EC-FESS is 33. 6% under different initial braking speeds，and EC-FESS and controller in Simulink are reasonable． In addition，energy recovery efficiency is the highest when ESC is adjusted．