摘要
针对混合动力汽车以纯电动模式在均一附着系数路面上以任意车速行驶或在附着系数分离路面上以中高车速行驶工况,牵引力控制系统进入电机转矩单独控制的问题。根据电机单独作用的特点,对电机转矩单独控制策略进行分析,利用Simulink搭建整车分析模型,对比分析了不同工况下采取和未采取该策略分析结果;并与传统内燃机汽车牵引力控制时的结果进行对比,结果表明车辆行驶的稳定性得到明显的改善。采取混合动力汽车在环试验验证分析了电机转矩单独控制策略在试验工况下的结果,从得到的曲线看出电机实际输出转矩很好的跟随了期望电机转矩,控制过程中电机转矩变化平稳,表明控制策略很好的解决混合动力汽车电机单独驱动时的牵引力控制问题,为实际生产设计提供参考。
This article aims at the single control problem of traction control system entering into motor torque when hybrid electric vehicle （HEV） run at arbitrary speed on uniform attachment coefficient pavement in pure electric mode or run with medium to high speed on attachment coefficient separation pavement. According to the single action feature of motor, it analyzes the single control strategy of motor torque and uses Simulink to establish finished automobile analysis model and compares the analysis result of using this strategy with analysis result of not using this strategy under different working conditions. It also compares the results with the results of using traditional internal combustion engine traction control and it is shownfrom the comparison result that the stability of vehicle running is improved obviously. This article adopts HEV loop test to verify and analyze the results of single control strategy of motor torque in test working conditions. It is seen shown from the obtained curve that the actual output torque of mator follows expected motor torque well and the motor torque change is stable in control process which shows that control strategy solves traction control problem when HEV motor is in separate drive and provides a reference to actual production design.
出处
《机械设计与制造》
北大核心
2016年第9期93-97,共5页
Machinery Design & Manufacture
基金
山东省自然科学基金(Y2011A16)
