基于弱磁控制的工程机械自适应电子差速控制

传统轮式工程机械使用机械差速器来完成差速，而轮边电力驱动系统的差速功能主要通过电子差速控制技术来实现。分析了常用的电子差速控制策略，提出了基于弱磁控制算法的自适应电子差速技术，搭建了轮边电力驱动装载机模型，并对转弯工况和不同滚动半径直行工况进行了仿真研究，进行了轮边电力驱动装载机的空载转向和重载转向试验。研究表明，采用弱磁控制算法的左右电动轮能够自适应差速，实现平稳转向。

Construction Machinery Adaptive Electronic Differential Control Based on Field Weakening Control

The traditional wheel construction machinery used mechanical differential to realize differential, while the differential function of wheel electric driving system mainly realized by the electronic differential control technology. Common electronic differential control strategies were analyzed and the adaptive electronic differential technology based on field weakening control algorithm was proposed. After modeling the wheel electric driving loader, working condition of turning and going straight with different rolling radius were simulated. The steering experiments of wheel electric driving loader were taken under the conditions of light loading and heavy loading. It is shown that the left and right electric wheels can realize adaptive differential and smooth steering by using field weakening control algorithm.