摘要
为了提高车辆燃油经济性和发动机功率利用率,创新性设计了一种具有32挡位的双态逻辑自动变速器。基于MATLAB/Simulink仿真平台,搭建了新型双内啮合行星排和高效多锥形摩擦片通用仿真模块,并在此基础上建立双态逻辑自动变速器的动态模型,通过整车动力性仿真分析验证了模型的正确性。针对双态逻辑自动变速器挡位数量多的特点,为了得到最优加速特性,在所建立仿真模型基础上,研究以不同挡位起步以及跳跃不同挡位对车辆加速性能的影响。结果表明:以起步时刻车辆获得最大加速度来确定起步挡位,以当前挡位与目标挡位阶比不大于发动机转速自适应系数来确定跳挡策略。
In order to improve vehicle fuel economy and engine power utilization, a kind of binary logic automatic transmission with 32 gears has been innovatively designed. Based on MATLAB/Simulink simulation platform, a new universal simulation module of double internal meshing planetary row and high efficiency multi-conical friction plate were built. Based on this, the dynamic model of the binary logic automatic transmission was established, which was correctly verified by vehicle dynamic simulation analysis. In view of the large number of binary logic automatic transmission gears, in order to obtain the optimal acceleration characteristics, based on the established simulation model, the effects of starting with different gears and jumping different gears on the acceleration performance of the vehicle were studied. The results show that the starting gear is determined by the maximum acceleration of the vehicle at the starting time, and the gearshift strategy is determined by the current gear and the target gear ratio not greater than the engine speed adaptive coefficient.
作者
高子茵
刘鹏
杜明刚
刘亚成
GAO Zi-yin;LIU Peng;DU Ming-gang;LIU Ya-cheng(Science and Technology on Vehicle Transmission Laboratory,China North Vehicle Research Institute,Beijing 100072,China;Military Commission Joint Staff,Beijing 100017,China)
出处
《计算机仿真》
北大核心
2020年第4期91-97,共7页
Computer Simulation
基金
国防基础研计划(17-H863-03-ZT-003-004-01)。
关键词
双态逻辑自动变速器
动态建模
加速特性
跳挡策略
Binary logic automatic transmission
Dynamic modeling
Acceleration characteristic
Jump strategy
