电动轻便摩托车续驶里程工况测试循环的研究

通过对电动轻便摩托车行驶过程中的车速、时间进行采集,以获得大量反映电动轻便摩托车实际道路行驶特征的数据,通过对数据进行分析筛选以确定合理的电动轻便摩托车续驶里程工况测试循环。在底盘测功机上进行了不同工况的续驶里程试验,表明GB/T 24157-2009标准中电动轻便摩托车续驶里程工况法测试循环与我国的道路情况及车辆实际运行情况并不相符。     

电动车底盘测功机续驶里程试验影响因素分析

介绍了依据GB/T 18386—2017《电动汽车能量消耗率和续驶里程试验方法》进行电动车续驶里程试验的流程,并对给各流程中续驶里程结果带来误差的因素进行分析,通过合理的试验方法确保试验结果的准确性。     

基于不同测试循环的电动汽车续驶里程与能耗分析

选用2辆电动汽车在底盘测功机上分别按照新欧洲驾驶循环(NEDC)、中国乘用车行驶工况(CLTC-P)、全球统一轻型车测试循环(WLTC)进行续驶里程及能耗测试.分析车辆使用不同测试循环及标准时在电能变化量、直流能量消耗量、续驶里程、电网充电量等方面的结果差异.     

插电式混合动力汽车两种能耗试验方法的对比研究

插电式混合动力汽车(PHEV)因节能减排效果显著,且又不受续驶里程、充电时间的限制,成为汽车发展的潮流。从试验过程、试验工况、加权方法等方面分析对比了GB/T 19753-2013和GB/T 19753-XXXX(讨论稿)两种插电式混合动力汽车能耗试验方法,并用同一车辆分别进行测试,对比分析了续驶里程、综合的百公里电量消耗、燃料消耗的变化。总结了今后切换试验方法对PHEV能耗最终测试结果的影响,为PHEV能耗限值标准的修订提供了建议。     

NEDC工况下双驱电动汽车传动系统参数匹配设计

为了改善驱动电机运行工作区域和提高电动车续驶里程,提出了一种新的双驱电动汽车传动装置,并基于NEDC标准循环工况的功率需求,获取了整车关键零部件的结构与性能参数,利用Matlab/Simulink.对双驱电动传动系统进行了动力性能仿真分析。结果表明,电动汽车动力性能与经济性能满足设计要求。     

天津加紧研发电动汽车

据经济参考报报导,天津清源电动车辆有限公司承担国家863计划项目研发的XL2000型和XL-2型纯电动轿车的各项技术指标达到了国际先进水平,最高时速分别可达到120km/h和140km/h,续驶里程超过250km,成为国内水平最高又最接近产业化的电动车型。据统计,我国目前民用汽车的保有量达到     

Extended-range electric vehicles and their lithium-ion batteries

增程式电动汽车(E-REV,extended-range electric vehicle),是指在纯电动汽车基础上,增加一个内燃发电机增程器(RE),给电池充电或直接驱动电机以增加续航里程,从而克服纯电动汽车续驶里程短的瓶颈的新型电动汽车.是介于传统混合动力汽车与纯电动汽车之间的车辆类型,在排放,噪音,系统复杂性等方面优于传统混合动力汽车,但又比纯电动汽车在续驶里程和成本方面更具优势,因此,E-REV更具大规模商业化应用推广价值.E-REV所携带的动力电池本身的续驶里程并不大,但它要求具备更高的效率,同时具备高能量密度与高功率密度,这势必给锂离子电池的发展带来新的挑战与机遇.本文简要介绍E-REV及其发展以及对我国新能源汽车发展的重要意义,在此基础上,重点对适合于E-REV的动力电池进行分析.     

动力电池标准体系建设现状及建议

动力电池是新能源汽车的核心零部件,对新能源汽车的动力性、安全性、续驶里程和使用寿命起着决定性作用.当前,国内外标准化组织机构相继制定并发布了多项动力电池标准,但现有标准内容仍然不足以覆盖动力电池全生命周期、实际复杂应用场景以及新技术等多方面使用需求.对此,本文系统归纳了国内外动力电池标准化组织机构及其发布、在研标准进展...     

燃料电池公交车暖风系统对续驶里程的影响

针对燃料电池汽车在寒冷地区续驶里程低的问题,分析客车的采暖需求,以寒冷地区运营的大型高三级客车为例,计算有无暖风条件下的整车续航里程变化。计算结果显示,在寒冷地区运营的燃料电池客车,由于暖风能耗的影响,整车续驶里程下降约37%。综合考虑管理散热、热交换效率等因素,燃料电池公交车适合直接使用电热供暖,提升燃料电池的使用效率。     

辅助混合动力电动汽车的小型发动机充电系统研究

介绍了辅助混合动力电动汽车的小型发动机充电系统组成及控制目标，并通过台架试验和道路试验对蓄电池组进行充电试验，得到不同充电起始电压下蓄电池电压变化曲线，验证了通过小型发动机对蓄电池组充电可以达到提高车辆续驶里程、增加蓄电池使用寿命的目的。     

摩托车发动机燃烧、节能、净化技术发展现状及前景

近年来，随着摩托车行业的快速发展，能源危机、环境污染已经受到社会各界的普遍关注。结合自行研制开发的一台摩托车发动机，本文阐述了改善摩托车发动机燃烧、节能、净化技术发展现状及前景，对诸如多气门、快速滚流燃烧、电控燃油喷射以及排气污染控制等技术在摩托车发动机上的应用进行了探讨。     

混合动力摩托车制动能量回收系统的研究

能源与环保现已成为社会发展的主题,电动和混合动力摩托车已经成为当今摩托车发展的重要方向。而制动能量回收技术在电动车辆上的合理运用,能够对其节能和减排起到积极推动作用。本文介绍了混合动力摩托车制动能量回收控制系统。通过试验分析,该系统在混合动力摩托车的节能减排方面起到了一定的效果。     

An assist-mode hybrid electric motorcycle

This paper proposes a design and implementation of an assist-mode, hybrid electric motorcycle (H.E.M.). The proposed hybrid electric motorcycle is a revised vehicle from a 50 cc motorcycle and designed to match up with a 100 cc motorcycle. In order to expedite the developing phase and lower down the cost, a master–slave tracking control method is utilized. A dc servo-motor is deployed to track the speed of the rear wheel of the motorcycle and to provide more torque through power composite into the rear wheel so that the performance of hybrid electric motorcycle can be promoted. The advance of performance as well as the energy saving can both be expected. In road trip experiment, the H.E.M. prototype achieves an average gasoline mileage of 46 km l⁻¹ compared to the original 34 km l⁻¹. The overall efficiency is about 35% lift. Experimental results confirm the feasibility and prosperities of the proposed hybrid electric motorcycle.     

Design and implementation of a hybrid electric motorcycle management system

This paper presents a successful design and implement of a shunt-winding hybrid electric motorcycle management system which utilizes an electronic control unit (ECU) to integrate two major subsystems together, one being the traditional system of 125 c.c. internal combustion engine and the other an electric power motor. The hybrid electric motorcycle is assembled together robustly by these two major subsystems and eventually leads to successful road tests. The hybrid power system thus implemented can recharge its own batteries with electricity provided by the electrical recharge system and thus increasing the cruising mileages largely. The testing results obtained by using the proposed experimental platform indicate that lead-acid cells can boost their state of charge (SOC) by approximately 4% when it is operated under the hybrid mode for four driving cycles (about 1600 s) with the recharger on in a standard ECE-40 testing procedure. The results of road tests also clearly show that the pollutant emissions of the engine can be reduced at a lower speed or idling condition, and the problem of insufficient cruising range for electric motorcycles can also be greatly enhanced.     

Passive fuel cell/lithium-ion capacitor hybridization for vehicular applications

Electric recreational vehicles represent a new challenge in terms of power supply systems compared to the current light-duty electric vehicles, which achieve high performance and long-range. The recreational vehicles need to heed the limited dimension requirements while assuring the high requested power. This paper proposes an integration of Lithium-Ion Capacitor (LIC) with Fuel Cell (FC) without any power electronic device for a three-wheel electric motorcycle. Unlike other hybrid power supply systems, the proposed FC-LIC passive configuration is lighter, compact, more efficient, and simpler to implement. Due to the different impedance of the components the system is self-management, in which FC supplies the average power component and LIC operates as a low-pass filter. In this respect, a simulator is built based on experimental tests to study the system performance in terms of hydrogen consumption and FC degradation. Subsequently, the system is tested under three standard motorcycle driving cycles at three different FC system lifespan stages. The obtained results demonstrate that a passive topology can supply the requested power along different FC stages of life and reported just an increment of 12% of hydrogen consumption at the oldest condition compared to the new condition.     

Electric energy consumption in the cotton textile processing stages

Electric energy is one of the primary energy sources consumpted in cotton textile processing. Current energy cost rate is reported about 8–10% in the total production cost of an ordinary textile product manufactured in Turkey. Significantly important share of this energy cost is electric energy. The aim of this paper was to investigate unit electric energy consumption of cotton textile processing stages using real-time measurements method. Actual and estimated Specific Energy Consumption (SEC) values for electric energy was calculated in the cotton textile processing stages of spinning, warping–sizing, weaving, wet processing and clothing manufacturing. Actual electric energy consumption data are gathered from monthly records of the involved plant managements. Estimated electric energy consumption data is gathered through on-site measurement. Actual and estimated electric energy consumption data and monthly production quantities of the corresponding months are used to facilitate specific electric energy consumption of the plants. It is found that actual electric energy consumption amount per unit textile product is higher than the estimated electric energy consumption amount per unit textile product of each involved textile processing stages.     

摩托车振动舒适性客观评价试验方法研究

简要回顾了摩托车振动舒适性评价方法研究现状,介绍摩托车振动舒适性客观评价方法的基本内容,包括测量原理、试验方法、数据处理流程等,依据试验数据分析对测量频率范围和测点的选择进行研究,对开展摩托车振动舒适性评价和改进设计具有一定参考意义。     

Considerations for the selection of an applicable energy efficiency test procedure for electric motors in Malaysia: Lessons for other developing countries

Electric motors are a major energy-consuming appliance in the industrial sector. According to a survey, electric motors account for more than 70% of the total growth from 1991 to 2004 in electricity consumption in this sector in Malaysia. To reduce electricity consumption, Malaysia should consider resetting the minimum energy efficiency standards for electric motors sometime in the coming year. The first step towards adopting energy efficiency standards is the creation of a procedure for testing and rating equipment. An energy test procedure is the technical foundation for all energy efficiency standards, energy labels and other related programs. The test conditions in the test procedure must represent the conditions of the country. This paper presents the process for the selection of an energy test procedure for electric motors in Malaysia based on the country's conditions and requirements. The adoption of test procedures for electric motors internationally by several countries is also discussed in this paper. Even though the paper only discusses the test procedure for electric motors in Malaysia, the methods can be directly applied in other countries without major modifications.     

应用ISO 2631和ISO 5349评价摩托车平顺性

摩托车平顺性已经成为摩托车重要的使用性能之一。本文依据国际标准ISO2631、ISO5349相关内容，并对多种具有代表性的摩托车进行了平顺性的道路试验，研究分析了摩托车平顺性的特点，提出了摩托车平顺性评价方法，并依据该评价方法对实车进行了评价对比，试验结果，表明该评价方法与驾驶员主观感觉吻合，能很好地评价摩托车平顺性。     

摩托车发动机电喷和测控系统综合设计

在研究开发摩托车发动机电喷系统过程中,初步完成电喷系统设计后,需要进行台架实验,对摩托车发动机的运行工况进行控制并测试其各项运行参数。笔者设计了摩托车电喷系统,并将测控系统融于其中,方便了摩托车发动机台架实验,可以缩短开发周期和节约成本,系统运行良好和操作方便。