摘要
提出电动挖掘机电控正流量系统控制算法,按各动作先导压力计算双泵排量、恒功率计算双泵排量和排量输出PID参数整定3大部分来研究控制流程和算法。通过对控制流程、先导流量计算、恒功率流量计算、最终流量输出判断、延时处理策略和电流PID运算,详细分析及控制算法仿真、验证,该控制算法可以更有效提升排量计算合理性。各动作响应和稳定余量可以独立设置,方便调试;各动作响应速度优化,动作响应速度调整的灵活度更高。优化的交叉功率分配算法,可以更有效分配双泵功率。以上研究对提升泵排量技术合理性、计算精度、各动作响应速度和调试便利性有很好的价值。
A electronically controlled positive flow system control algorithm for electric excavator is proposed.The control process and algorithm are studied by calculating the double pump displacement according to the pilot pressure of each action,calculating the double pump displacement according to the constant power,and tuning the Proportional-Integral-Derivative(PID)parameters of the displacement output.Through the detailed analysis of control flow,pilot flow calculation,constant power flow calculation,final flow output judgment,delay processing strategy,current PID operation and control algorithm simulation and verification,the results show that:the control algorithm can improve the calculation rationality of displacement more effectively.Each action response and stability margin can be set independently,convenient debugging.The response speed of each action is optimized,and the flexibility of the adjustment of the response speed is higher.The optimized cross power distribution algorithm can distribute the double pump power more efficiently.
作者
明巧红
王阳阳
MING Qiaohong;WANG Yangyang(School of Automotive Engineering,Tongji University,Shanghai 201800,China)
出处
《中国工程机械学报》
北大核心
2025年第5期796-800,共5页
Chinese Journal of Construction Machinery
关键词
电动挖掘机
电控
正流量系统
控制算法
electric excavator
electronic control
positive flow system
control algorithm
