引入载荷识别的电动后驱商用车制动能量回收策略  

Braking energy recovery strategy of pure electric rear-drive commercial vehicle with load identification

作　　者：吕毅恒 王陶[1] 陈刚[1] 张国芳 王良模[1] LYU Yiheng;WANG Tao;CHEN Gang;ZHANG Guofang;WANG Liangmo(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China;Nanjing Iveco Automobile Co.,Ltd.,Nanjing,Jiangsu 211800,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]南京依维柯汽车有限公司,江苏南京211800

出　　处：《江苏大学学报（自然科学版）》2023年第4期379-385,414,共8页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51675281)。

摘　　要：针对某纯电动后驱商用车电耗较高、续驶里程不足的问题,提出一种后驱纯电动商用车制动能量回收方法.该方法保持原有制动系统H形液压管路布局,及前、后轴液压制动力固定比值分配不变,只增加1个制动踏板力传感器,提出基于ECE R13与I曲线的制动能量回收策略.利用AVL Cruise和Simulink建立整车联合仿真平台,同时构建策略模型及需大幅提高成本的典型串联方案模型,并进行对比分析.在3种典型工况下,进行了整车制动能量回收仿真试验.结果表明:提出的引入载荷识别的制动能量回收控制策略可低成本地接近安全限度内的回收率上限,满载时比原设计增加21.00%以上的续驶里程.To solve the problems of high power consumption and insufficient driving range of pure electric rear-drive commercial vehicle,a braking energy recovery method for the pure electric rear-drive commercial vehicle was proposed.The original H-type hydraulic pipeline layout of the brake system was kept,and the fixed ratio distribution of the front and rear axle hydraulic braking force was unchanged.Only one brake pedal force sensor was added,and the braking energy recovery strategy was proposed based on ECE R13 and I curves.AVL Cruise and Simulink were used to establish a joint simulation platform for vehicle,and a strategic model and a typical series scheme model with greatly increasing costs were built and compared.Under three typical conditions,the vehicle brake energy recycling simulation test was conducted.The results show that the proposed braking energy recovery control strategy with load identification can approach the upper limit of recovery within the safety limit at low cost,and the driving distance can be increased by more than 21.00%compared with the original design at full load.

关 键 词：商用车 能量回收 制动力分配 载荷识别 联合仿真 

分 类 号：U462.3[机械工程—车辆工程]