串联式混合动力推土机驱动系参数匹配设计  

Parameter Matching Design and Control Optimization for Series Hybrid Tracked Bulldozer

作　　者：邹渊[1,2] 陈晓玲[1,2] 李东阁[1,2] 姚友良 石松山 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京理工大学电动车辆国家工程实验室,北京100081 [3]山推工程股份有限公司研究院,济宁272000

出　　处：《机械工程学报》2014年第1期70-75,共6页Journal of Mechanical Engineering

基　　金：国家科技支撑计划(2011BAG04B00);国家自然科学基金(5091015);高等学校学科创新引智(B12022)资助项目

摘　　要：提出一种适用于推土机的双电动机独立驱动、串联式混合动力驱动系统。综合推土机的典型工况获得单侧履带阻力特性,以最大动力因数和最高车速性能指标为约束,完成了双侧电动机及侧减速参数匹配设计。由功率链平衡确定发动机-发电机组和超级电容的性能参数,建立了发动机-发电机组和超级电容器电能耦合数学模型。针对推土机的典型和极限工况,以油耗最小为目标,引入动态规划理论,在推土机控制系统动态约束过程中验证所选系统参数的合理性,完成超级电容与发动机-发电机组参数动态匹配设计与验证。结果显示该参数匹配可以满足推土机典型和极限工况下功率需求。A serial hybrid powertrain for bulldozer with independent dual-motor electric drive is put forward. The resistance characteristics for a single track are obtained from the bulldozer typical driving and operating conditions. The parameters of the dual electric motors and gear reduction ratios between motors and sprockets are designed and validated, considering the maximum power factor and the maximum bulldozer speed constraints. The parameters of the engine-generator and ultra-capacitor are determined based on the balance between the front and rear power chain. The mathematical model for the engine-generator and ultra-capacitor has been built. Dynamic programming is applied to verify the feasibility of the parameters designed for the fuel minimization during the typical and limiting conditions. The simulation results show that the parameters satisfy the power requirement of typical conditions and they could also meet the power requirement of limiting conditions.

关 键 词：混合动力 履带式推土机 参数匹配 动态规划 

分 类 号：TU623[建筑科学—建筑技术科学]