针对多轴车辆测功试验台电机加载时转速同步控制方法进行研究。分析车辆传动系统中常用机械传动元件的动力学特性，给出理想动力学模型。通过对模型进行不同排列组合，获得多轴测功试验台理想动力学模型。车辆传动系统中存在足够数量的轮间、轴间行星齿轮差速器时，该试验台的理想模型由独立电机模型组成，且各电机模型间不存在耦合关系。据差速反馈思想，提出用于试验台加载的转速同步控制策略，以保证试验系统各电机加载时转速同步性，并通过计算机仿真对差速控制策略能有效实现多电机加载的转速同步控制进行验证。
Abstract
In this paper, the speed synchronization control method of motors which used for multi-axles driving vehicle’s dynamometer test bench was investigated. Firstly, the common driveline components’ dynamic characteristics of vehicle’s mechanical driveline were analyzed and ideal models were established. And the dynamic model of test bench can be got through combinations of those ideal models. It is found that the dynamic model can be considered as a model composed by many individual models of single motor without any coupling, when there is a sufficient number of planetary gear differential between wheels and axles in the vehicle driveline. Secondly, in order to improve the speed synchronization control, synchronization control architecture was designed for the multi-axles driving vehicle’s test bench based on the ideas of differential velocity feedback. At last, the simulation results of the control architecture show that the synchronization control can be achieved effectively.
关键词
转速同步控制 /
差速反馈 /
多轴车辆 /
测功试验台
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Key words
speed synchronization control /
differential velocity feedback /
multi-axles driving vehicle /
dynamometer test bench
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参考文献
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