电力驱动式汽车巡航控制系统结构研究

汽车巡航控制系统是由传感器、控制开关、电子控制器和执行机构组成。按执行机构的结构不同,巡航控制系统可分为真空驱动式和电力驱动式两种,本文主要分析电力驱动式巡航控制系统控制开关和执行机构的功用、结构与原理。     

EQ6110混合动力电动汽车再生制动控制策略研究

分析了电机再生制动对车辆制动性能的影响以及典型城市公交客车运行工况特点，提出了适于EQ6110HEV的再生制动控制策略——低制动强度时优先采用再生制动，高强度时按比例复合再生制动与摩擦制动。仿真计算表明：在各种循环工况下，EQ6110HEV采用这种再生制动控制策略均有较好的节能效果，可降低能耗10％～25％。     

基于ADVISOR2002混合动力汽车控制策略模块开发

介绍了混合动力汽车仿真软件ADVISOR中的并联控制策略，结合课题的实际情况，对ADVISOR2002的并联控制策略进行了二次开发，并针对某一车型进行了仿真对比，结果表明所提出的控制策略不仅能够鲁棒地在ADVISOR2002界面中运行，而且合理、可靠，满足实际需要。     

基于MTG的永磁电机启动性能研究

高速永磁电机是MTG发电的关键技术之一，通常采用变频调速的启动方法。高速和高频的特性，决定了高速电机的设计与普通电机有较大的不同。通过建立数学模型，采用仿真的方法可以较准确获得永磁电机的启动性能。     

低噪声电站噪声测量问题

分析了现实采用的几种移动电站噪声测量方法，根据实际发展需要。针对噪声测量中存在的一些问题，提出了低噪声电站噪声测量方法的一些看法。     

高速公路机电系统升级的趋势、现状和要点

中国高速公路的不断建设,对高速公路机电系统提出了更高的要求.介绍了机电系统现状,分析了其将来的发展趋势,并指出了升级的要点.     

车辆高速行驶安全的思考

分析了轮胎等汽车部件对行车安全的作用，论述了对ABS和车轮定位参数日常检测的必要性．介绍了电涡流中央制动器的制动原理和使用成本。     

SS4B电力机车转向架可视化标准作业系统研究

SS_4B型电力机车转向架结构复杂,检修工序繁琐,对作业人员的检修技能培训要求高,针对目前培训方式存在的问题,提出建立转向架可视化标准作业系统,综合利用多媒体技术、数字化建模技术以及虚拟现实技术,构建集三维动画和人机交互功能于一体,信息集中化、培训作业标准化、培训时空自由化、周期短且考核针对性强的可视化培训系统,实现对SS_4B型电力机车转向架系统的内部结构、检修流程及其动态拆装过程的逼真模拟,提升实操培训效率和沉浸式体验,提高检修人员技能水平。     

Fast-charging station choice behavior among battery electric vehicle users

This study explores how battery electric vehicle users choose where to fast-charge their vehicles from a set of charging stations, as well as the distance by which they are generally willing to detour for fast-charging. The focus is on fast-charging events during trips that include just one fast-charge between origin and destination in Kanagawa Prefecture, Japan. Mixed logit models with and without a threshold effect for detour distance are applied to panel data extracted from a two-year field trial on battery electric vehicle usage in Japan. Findings from the mixed logit model with threshold show that private users are generally willing to detour up to about 1750 m on working days and 750 m on non-working days, while the distance is 500 m for commercial users on both working and non-working days. Users in general prefer to charge at stations requiring a shorter detour and use chargers located at gas stations, and are significantly affected by the remaining charge. Commercial users prefer to charge at stations encountered earlier along their paths, while only private users traveling on working days show such preference and they turn to prefer the stations encountered later when choosing a station in peak hours. Only private users traveling on working days show a strong preference for free charging. Commercial users tend to pay for charging at a station within 500 m detour distance. The fast charging station choice behavior is heterogeneous among users. These findings provide a basis for early planning of a public fast charging infrastructure.     

Data dependent input control for origin–destination demand estimation using observability analysis

In this paper, we address the observability issue of static O–D estimation based on link counts. Unlike most classic observability analyses that relied only on network topological relationships, our analysis incorporates the actual values of input parameters, thus including network operational relations as well. We first analyze possible mathematical properties of an O–D estimation problem with different data input. We then propose a modeling approach based on mixed-integer program for selecting model input that ensures observability and estimation quality. Through establishing a stronger connection between observability analysis and the corresponding estimation problem, the proposed method aims to improve estimation quality while reducing reliance on erroneous data.