Aiming at the chattering problem of the maglev system under the traditional sliding mode control (SMC), a variable universe fuzzy sliding mode control (VUFSMC) was proposed to improve the robustness of the system and weaken the SMC chattering. Experiments by selecting a magnetic levitation ball as the controlled object showed that the designed controller could effectively improve the accuracy of the system and weaken chattering under external interference, and had practical application value.

SMC ，variable universe fuzzy sliding mode control，weaken chattering