高效抑制机车空转和滑行的卸载新算法  

Deloading Algorithm for Highly Effective Suppressing Locomotive Slip and Slide

作　　者：李江红[1] 陈华国[1] 胡照文[2] 徐立恩 彭辉水[1] 

机构地区：[1]南车株洲电力机车研究所有限公司,湖南株洲412001 [2]中南大学物理与电子学院,湖南长沙410012

出　　处：《机车电传动》2015年第6期6-10,共5页Electric Drive for Locomotives

摘　　要：由于过度卸载将降低轮轨粘着利用效率,因此确定何时应停止卸载非常重要。基于轮轨粘着特性及轮轨运动模型,通过分析空转/滑行卸载保护时粘着再恢复过程中轮对加速度和牵引力的变化规律,推导了停止空转/滑行卸载的最佳时刻以及最佳时刻的判断方法。试验结果表明,相对传统的空转/滑行卸载方法,新算法能够提高50%以上的粘着利用。Because over deloading would reduce wheel-rail adhesion utilization efficiency, it was important to determine the critical time when deloadding should be stopped. Based on wheel-rail adhesion characteristics and the dynamic model of wheel movement, this paper analyzed the variation of both wheel acceleration and vehicle traction force during the deloading and re-adhesion process, derived the optimal time for stopping slip/slide deloadding and developed the procedure for obtaining the optimal time. Experimental results show that, compared to conventional deloading schemes for restraining slip/slide, the proposed method can improve adhesion utilization up to 50%.

关 键 词：轨道交通 粘着 粘着利用 空转/滑行 卸载 

分 类 号：U260.115[机械工程—车辆工程] U260.37[交通运输工程—载运工具运用工程]