摘要
直接轮式驱动电动汽车为实现汽车转弯时的差动功能 ,不得不采用复杂的差动控制算法对左右驱动轮进行协调控制 ,以取代机械差速器。在分析汽车运动基本规律特别是差动原理的基础上 ,提出了一种新型直接轮式驱动控制系统 ,该系统主要由 2台方波电流驱动的永磁无刷电机串联而成 ,避免了复杂的差动控制算法。对其原理和可行性进行了详细地分析和阐释。最后在 Matlab/Sim ulink平台下对该系统进行了仿真分析 ,结果表明 :该驱动控制系统完全能够实现机械差速器功能 ,同时可直接利用电机控制的现有成果 ,从而降低了控制系统的复杂程度和设计费用 ,为提高直接轮式驱动电动汽车的性能提供了新思路。
Conventionally, the direct-wheel-driven electric vehicle has no mechanic differential gears, and its control system has to adopt the so-called differential algorithm to perform the differential function. Based on the comprehensive analysis on the differential principle, this paper presentes a novel driven & control system for direct-wheel-driven electric vehicles. The system is mainly composed of two high-torque permanent magnet brushless DC motors, which are connected electrically in series. The operation principle is expounded in detail in this paper, and an equivalent simulation system under Matlab/Simulink platform is developed to verify the performance of the proposed system. The simulation result confirmes the rationality and feasibility of the driven & control system.
出处
《电气传动》
北大核心
2004年第6期49-52,共4页
Electric Drive
