The invention provides a torque control method for a combined driving system of a mining dump truck. The torque control method comprises the following steps that (1) the optimal external characteristic curve and peak torque of each system are obtained through the speed ratio and motor parameters of each system; 2) setting the total demand torque of the system; 3) determining an initial value of a torque required by a corresponding motor in each system; 4) obtaining the power required by each system according to the real-time data of each system and the corresponding motor; 5) distributing the power required by each system; 6) limiting the total power required before and after distribution; 7) carrying out torque conversion on the required power distributed by each system; 8) looking up the optimal working temperature according to each system parameter; and (9) the final output torque is filtered, the torque issued to the motor end reaches the most appropriate torque slope under each working condition, the torque can meet the requirements of the large-tonnage mining dump truck, the rectification range is small, cost is saved, and gear shifting is not interrupted.
本发明提供一种矿用自卸车组合驱动系统扭矩控制方法,包括以下步骤:1)通过每个系统的速比及电机参数获取与每个系统的最优外特性曲线及峰值扭矩;2)设置系统总需求扭矩;3)确定每个系统中对应电机所需扭矩的初始值;4)根据每个系统及对应的电机的实时数据,求得每个系统所需功率;5)对每个系统所需功率进行分配;6)对分配前后所需总功率进行限制;7)对每个系统分配后的所需功率进行扭矩转化;8)根据每个系统参数通过查表最佳工作温度;9)对最终输出扭矩进行滤波处理,使下发到电机端的扭矩在每个工况下达到最合适的扭矩斜率,扭矩可满足大吨位矿用自卸车的需求,整改范围小,节约成本,换挡不中断。
Torque control method for combined driving system of mining dump truck
一种矿用自卸车组合驱动系统扭矩控制方法
2024-06-25
Patent
Electronic Resource
Chinese
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