“模拟+实车”组训模式在汽车驾培业的应用概述

"模拟+实车"是一种行之有效、科学先进的现代汽车驾驶员培训的组训模式。本文通过"模拟+实车"组训模式的形成、发展及效益分析进行整体论述,并为汽车驾驶培训开辟了一条新途径。"模拟+实车"组训模式以其低投入、低成本、低消耗、高效益、高质量、适应性强、节能环保等特点在汽车驾驶培训业中得以广泛推广和应用。

动力总成台架模拟行驶阻力功能的验证

针对电动汽车整车性能试验占用了大量开发时间等问题,分析了电动汽车运动的受力情况,介绍了动力总成台架可替代底盘测功机完成整车的相关性能试验,缩短了电动汽车的开发周期,提出动力总成台架具有可准确模拟行驶阻力的功能。通过将动力总成台架上进行滑行试验测得的模拟行驶阻力和实车行驶阻力进行比对,验证了动力总成台架模拟行驶阻力的准确性。

Modeling and simulation of CMS04 maglev train with active controller

The application of new-designed levitation controller requires extensive validation prior to enter into commercial service. However, huge mounts of approximations and assumptions lead the theoretical analysis away from the engineering practice. The experimental methods are time-consuming and financial expensive, even unrealizable due to the lack of suitable sensors. Numerical simulations can bridge the gap between the theoretical analysis and experimental techniques. A complete overall dynamic model of maglev levitation system is derived in this work, which includes the simple-supported bridges, the calculation of electromagnetic force with more details, the stress of levitation modules and the cabin. Based on the aforementioned model, it shows that the inherent nonlinearity, inner coupling, misalignments between the sensors and actuators, and self-excited vibration are the main issues that should be considered during the design process of controller. Then, the backstepping controller based on the mathematical model of the module with reasonable simplifications is proposed, and the stability proofs are listed. To show the advantage of controller, two numerical simulation experiments are carried out. Finally, the results illustrating closed-loop performance are provided.

关于EPS对称性试验方法的研究

电动助力转向系统（Electric Power Steering，缩写EPS）是一种直接依靠电机提供辅助扭矩的动力转向系统。本文针对EPS转向系统的电流特性及输入输出扭矩特性试验，设计了一套实车道路模拟系统，进行试验测试及特性分析。