基于动力总成万有特性的最佳经济性换挡方法研究  

Research on the best economical method of shifting based on the powertrain universal characteristics

作　　者：朱江苏 孙静静 刘刚 史祥东 甄雷 ZHU Jiangsu;SUN Jingjing;LIU Gang;SHI Xiangdong;ZHEN Lei(State Key Laboratoryof Engine and Powertrain System,Weifang 261061,Shandong,China;Weichai Power Co.,Ltd.,Weifang 261061,Shandong,China)

机构地区：[1]内燃机与动力系统全国重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《农业装备与车辆工程》2025年第3期59-65,共7页Agricultural Equipment & Vehicle Engineering

基　　金：中美国际合作项目“提高中载及重载卡车能效关键技术中美联合研究”(2022YFE0100100)。

摘　　要：AMT变速箱换挡特性决定了整车的动力性和燃油经济性,合理的换挡特性不仅可以提升整车的动力性,还能提升整车的燃油经济性。为此,对动力总成万有特性及其测试方法进行了分析,基于动力总成万有特性,综合考虑整车加速度、转动惯量和储备功率等,实时计算最佳的经济性挡位并执行换挡操作,以达到节油的目的。策略开发及仿真验证表明,采用该换挡策略可以实现高速工况节油0.92%。The AMT transmission shift characteristics determine the power and fuel economy of the complete vehicle,and the rational shift characteristics can improve the fuel economy of the complete vehicle.The article expounded the characteristics of the power assemblies and the test methods,and based on the characteristics of the power assemblies,the acceleration of the whole vehicle,inertia of rotation and reserve power were taken into consideration,so as to calculate the optimum economic gear in real time.A shift operation was performed,strategy development and test validation completed.The results showed that the shift strategy can achieve 0.92% fuel savings at high speed.

关 键 词：燃油经济性 动力总成 万有特性 换挡规律 

分 类 号：U463.212[机械工程—车辆工程]