摘要
通过传统的手动变速器配备的动力系统和以驱动变速器输出轴的电动机形式的辅助动力源来研究轻度混合动力车辆的动力系统。研究的主要目的是通过在车辆动力系统换挡过程中通过电动马达实现转矩孔填充来研究车辆动力系统的性能,通过开发混合动力系统的数学模型,并将其用于比较不同系统间的动态性能。数学建模方法用于在系统开发过程中为换挡控制算法设计运行不同的模拟,从而能够评估可实现的性能及其对系统性能的依赖性。通过研究电机功率对转矩孔补偿程度的影响,使用输出转矩、车速以及振动剂量值来评估不同电机尺寸下的换挡质量。研究结果表明,使用50 kW的电机功率可以消除转矩孔,但是换挡期间的最小振动剂量值是通过使用16~20 kW的峰值功率实现的。
This paper studies the powertrain of a mild hybrid vehicle by using the traditional manual transmission-equipped dynamic system and the auxiliary power source in the form of a motor driving the transmission output shaft.The main purpose of this study is to study the performance of vehicle powertrain by filling the torque hole with an electric motor during vehicle powertrain gear shift.A mathematical model of the hybrid powertrain is designed and used to compare the dynamic performance of different systems.The mathematical modeling method is used to run different simulations of the shift control algorithm design during system development to evaluate the achievable performance and its dependence on system performance.By examining the effect of motor power on torque hole compensation,output torque,vehicle speed and vibrational dose values are used to evaluate the shift quality for different motor sizes.The results of the study show that torque holes can be eliminated using 50 kW of motor power,however,the minimum vibration dose during gear changes is achieved using a peak power of 16-20 kW.
作者
谢召艳
Xie Zhaoyan(Xi'an Aeronautical Polytechnic Institute(Xi'an,Shaanxi,710089,China))
出处
《小型内燃机与车辆技术》
2018年第6期70-74,共5页
Small Internal Combustion Engine and Vehicle Technique
