电动式主动横向稳定器模型预测控制策略开发

Development of Model Predictive Control Strategy of an Active Vehicle Anti-roll Stabilizer

为进一步提升高速行驶车辆侧倾稳定性,本文以永磁同步电机式主动横向稳定器为被控对象,设计该电动式主动横向稳定器模型预测控制器及其电子控制单元,并完成相关离线仿真和硬件在环性能试验。首先利用MATLAB/Simulink搭建九自由度整车动力学模型,并利用模型预测控制方法,构建电动式主动横向稳定器控制策略模型,然后设计基于英飞凌32位TC275主控芯片的电动式主动横向稳定器电子控制单元,利用自行开发的电动式主动横向稳定器性能试验台,分别在转向盘角阶跃工况和鱼钩工况下验证了电动式主动横向稳定器模型预测控制策略有效性。相关仿真和台架试验结果表明,电动式主动横向稳定器模型预测控制策略可有效提高车辆抗侧倾能力。

In order to further improve the roll stability of high-speed vehicles,the model predictive controller and its electronic control unit of the active anti-roll stabilizer based on a permanent magnet synchronous motor(PMSM)are designed,and the related off-line and hardware-in-the-loop performance tests are conducted in this paper.Firstly,a nine-degree-of-freedom vehicle dynamics model is built with MATLAB/Simulink,and a model predictive control method is applied to build the control strategy model of the electric active anti-roll stabilizer.Then,the electronic control unit of the electric active anti-roll stabilizer based on the Infineon 32-bit Tricore 275 control chip is designed.The validity of the model predictive control strategy of the electric active anti-rolla stabilizer is validated under the steering wheel angle step test and the fishhook test respectively with the developed test bench.The results of relevant simulation and bench test show that the model predictive control strategy of the electric active anti-roll stabilizer can effectively improve the anti-roll ability of the vehicle.