摘要
电驱动铰接式车辆每个车轮采用独立异步电机驱动,可靠高效的转向差速控制策略尤为重要。通过分析电动轮数学模型和车体运动转向数学模型,采用ADAMS建立虚拟样机模型,应用Simulink搭建牵引电机模型及其驱动控制模型,联合建立整车驱动控制模型;针对现有普遍采用的等功率和等扭矩控制方式进行稳态转向工况差速性能仿真,从车辆动力学角度对两种控制方式进行评价。结果表明:等转矩控制下的差速性能略优于采用等功率控制,对地面附着系数利用更好,所搭建的模型及获得的结论可以对电驱动铰接式车辆转向差速控制系统研究提供参考。
Each wheel of electric wheel drive vehicles are driven by an independent traction motor, and reliable and efftcient differential steering control strategy is particularly important. The virtual prototype is established in ADAMS, based on electric wheel model and the vehicle body steering model. Wheel motor drive model of the underground mining truck is established based on Simulink, and takes it as the drive unit. Compared with the co-simulation performance of the truck under equal power and equal torque control strategies, the results show that the equal torque control in the slip ratio is better than the equal power control, and can better use of ground adhesion. This achievement has guiding significance for the study of electronic differential technology of articulated truck with electric drive.
出处
《机械设计与制造》
北大核心
2016年第3期86-89,94,共5页
Machinery Design & Manufacture
基金
国家高技术研究发展计划(2011AA060404)
天津市高等学校科技发展基金项目(20141103)
关键词
电驱动铰接车
转向工况
差速性能
等功率控制
等扭矩控制
Articulated Truck with Eectric Drive
Steering
Differential Performance
Equal Power Control
EqualTorque Control
