基于虚拟标定技术的换挡规律标定方法研究  

Research on Method of Shift Map Calibration Based on Virtual Calibration Technology

作　　者：王小峰 陈国栋 李岩 杨云波 张学锋 Wang Xiaofeng;Chen Guodong;Li Yan;Yang Yunbo;Zhang Xuefeng(Global R&D Center,China FAW Corporation Limited,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013

出　　处：《汽车工程师》2024年第9期21-26,共6页Automotive Engineer

摘　　要：基于虚拟标定技术进行了自动变速器换挡规律仿真研究,首先建立高精度物理模型(包括发动机、变速器及整车主要零部件等),利用已知的变速器控制单元(TCU)控制策略搭建变速器控制模型或直接在虚拟仿真平台接入TCU控制器,利用硬件在环(HiL)仿真平台进行TCU标定及相关工况仿真测试,并将仿真结果与试验数据进行对比,结果表明,基于模型的虚拟标定技术可满足换挡规律标定精度要求,并有效缩短标定时间、提升标定质量。Simulation research on automatic transmission shift schedule is carried out based on virtual calibration technology.Firstly,a high-precision engine model,transmission model and physical models of the entire vehicle and its main components are established.The transmission control model is built using known TCU control strategies or directly connected to the TCU controller on the virtual simulation platform.The Hardware-in-the-Loop(HiL)simulation platform is used to conduct TCU calibration related working conditions simulation testing,and the simulation results are compared with experimental data.The research results indicate that this model-based virtual calibration technology can meet the accuracy requirements in the field of shift schedule calibration and can be used to guide vehicle shift schedule calibration,effectively shortening calibration time and improving calibration quality.

关 键 词：换挡规律 硬件在环 虚拟标定 

分 类 号：U464.12[机械工程—车辆工程]