摘要
提出了一种新型的永磁式汽车用磁粉离合器结构,在离合器接合状态下,采用永久磁铁磁场传递发动机扭矩,在离合器分离过程和平稳接合过程中,利用电磁线圈产生的电磁场与永久磁铁的永久磁场叠加耦合的合成磁场实现离合器分离过程和平稳接合过程的控制;探讨了所设计的离合器励磁电流与磁场以及传递转矩的关系;在Matlab/Simulink环境下对离合器工作间隙磁场建模,并嵌入整车模型对起步接合阶段进行仿真,仿真结果显示,该新型永磁式磁粉离合器可以满足离合器扭矩传递、分离和平顺接合的工作要求。
A new vehicle magnetic-particle clutch structure was designed,in the clutch engagement state, a permanent magnet magnetic field is used to transfer the engine torque ,and in the clutch smooth en- gagement process and clutch release process ,and the composite magnetic field is superposed by the elec- tromagnetic coils magnetic field and the permanent magnetic field is used to achieve the control of clutch engagement process and clutch release process.The relationship between the excitation current and the mag- netic field ＆ transitive torque were studied.The magnetic field in working gap of the designed clutch was modeled by using Matlab/Simulink,embedding the model into the whole vehicle model and simulating the process of clutch engagement during vehicle starting process.The simulation results show that the new vehi- cle permanent magnetic-particle clutch is able to meet the working requirement of torque transfer and the smooth transition during the process of clutch engagement and release.
出处
《机械设计与制造》
北大核心
2012年第12期189-191,共3页
Machinery Design & Manufacture
基金
山东省科技发展计划项目(2011GGX10505)
山东省自然科学基金项目(ZR2009FL016)
关键词
磁粉离合器
永磁式
设计
仿真
Magnetic-Particle Clutch
Permanent Magnet
Design
Simulation
