电机式主动横向稳定器控制系统设计与仿真研究

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中图分类号：U463.1文献标识码：A

Abstract：To improve vehicle lateral stability under complex operating conditions，this paper designs a control system for a motor-driven active anti-roll bar. An integrated model is established， incorporating the electromagnetic characteristics of the embedded brushless DC motor，the mechanical structure of the three-stage planetary gear reduction mechanism and stabilizer bar，and vehicle roll dynamics. A dual-loop control strategy is designed with the outer loop targeting vehicle roll angle and the inner loop achieving torque closed-loop control through phase current feedback. Six-channel PWM signals are generated to drive the embedded motor. Finally，control system simulation is completed under steering wheel angle step and double lane-change maneuvers using a Simulink-CarSim co-simulation environment. Simulation results indicate that，compared with a conventional passive stabilizer， the proposed active system significantly improves both roll angle control and wheel vertical load distribution. The roll angle is reduced by 43.0% and 50.2% under the two test conditions. These outcomes demonstrate effective enhancement in lateral stability and anti-roll performance，confirming the feasibility and effectiveness of the proposed motor-driven active anti-roll bar control system.

Keywords：motor-driven active anti-roll bar;vehicle lateral stability；dual-loop control；vehicle roll control

传统横向稳定器限制了车辆在复杂动态工况中的适应能力，而主动横向稳定器可根据复杂行驶工况，实时调整输出抗侧倾力矩，尤其在高速转弯工况下可显著增强车辆横向稳定性[1]。（剩余7468字）