The invention discloses a bullet train electromagnetic emergency braking system, and belongs to the technical field of rail traffic safety. The system comprises a telescopic electromagnetic braking module, an intelligent control unit, an energy recovery module and a safety protection module. Reverse Lorentz force is generated through interaction of a superconducting coil and an orbit magnetic field to achieve braking, a Sigmoid function is adopted to control the current climbing rate, and in combination with a multi-physics field coupling protection structure, it is ensured that the acceleration change rate is smaller than or equal to 0.3 g/s when 1.5 MN braking force is generated within 0.5 s. The innovation points are as follows: (1) the folding multi-stage telescopic mechanism reduces the equipment volume by 40%; (2) 99.99% reliability is realized by a dual-redundancy control framework; (3) the energy efficiency of the energy recovery system is improved to 80%; and (4) the impact injury of personnel is reduced by 60% through a biomechanical protection strategy. The system can serve as an effective supplement of an existing braking system, and the emergency braking safety performance of the motor train unit is remarkably improved.
本发明公开了一种动车电磁紧急制动系统,属于轨道交通安全技术领域。系统包含可伸缩电磁制动模块、智能控制单元、能量回收模块和安全防护模块。通过超导线圈与轨道磁场相互作用产生反向洛伦兹力实现制动,采用Sigmoid函数控制电流爬升速率,结合多物理场耦合防护结构,在0.5秒内产生1.5MN制动力时确保加速度变化率≤0.3g/s。创新点包括:①折叠式多级伸缩机构使设备体积减少40%;②双冗余控制架构实现99.99%可靠性;③能量回收系统提升能效至80%;④生物力学保护策略将人员冲击损伤降低60%。本系统可作为现有制动系统的有效补充,显著提升动车组紧急制动安全性能。
Bullet train electromagnetic emergency braking system (emergency braking stage II)
动车电磁紧急制动系统(紧急制动阶段II)
18.04.2025
Patent
Elektronische Ressource
Chinesisch
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