Application of switched reluctance motor in vehicle active stabilizer bar

Due to the fixed geometric parameters and structure of vehicle passive stabilizer bar, the corresponding anti-roll moment cannot be provided in real time according to the state of the vehicle body, limiting the improvement of the anti-roll performance of vehicles. In order to improve the anti-roll performance of vehicles, a vehicle roll model, a wheel load transfer model and a finite element calculation model of switched reluctance motor were established respectively in this study. By calculating the vehicle roll and wheel load transfer model, the target anti-roll moment of the active stabilizer bar driven by the switched reluctance motor was obtained to determine the moment requirement of the designed switched reluctance motor, and the finite element method was used to design the corresponding motor. Based on the co-simulation platform of carsim and MATLAB/Simulink, it was verified that the designed active stabilizer bar system driven by the switched reluctance motor can improve the anti-roll performance of vehicles. The results demonstrate that under the condition of double lane change, the active stabilizer bar driven by the switched reluctance motor has a vehicle roll angle range of -1.2~1.2°, and the passive stabilizer bar has a roll angle range of -2.5~4.7°. Compared with the passive stabilizer bar, the anti-roll performance of active stabilizer bar driven by the switched reluctance motor is improved by about 50%. The proposed method provides a good prospect for optimizing the design of vehicle active stabilizer bar system. © 2019 School of Science, IHU.