Advances in Automobile Engineering最新文献_第10页

Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance 电磁可变气门正时控制系统提高火花点火发动机性能的理论与实验分析

Advances in Automobile Engineering Pub Date : 2014-01-01 DOI: 10.4172/2167-7670.1000105

M. Elkady, A. Elmarakbi, D. Knapton, M. Saleh, M. Abdelhameed, A. Bawady

{"title":"Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance","authors":"M. Elkady, A. Elmarakbi, D. Knapton, M. Saleh, M. Abdelhameed, A. Bawady","doi":"10.4172/2167-7670.1000105","DOIUrl":"https://doi.org/10.4172/2167-7670.1000105","url":null,"abstract":"The objective of this paper is to meet the requirements of higher torque values at all engine speeds. This can be achieved by varying the valve timing automatically using a new variable valve timing system (VVT), which gives continuously variable valve actuation at all engine speeds. A model engine is designed using dimensional analysis methods and then implemented to verify the proposed control system. Moreover, microcontroller and computeraided control systems are constructed and used to modify the variable valve timing control in the laboratory. In this paper, a mathematical model of variable valve timing is developed to obtain the best volumetric efficiency with optimum valve timing at different engine speeds. From this model, the look-up table is created at all ranges of the engine speed. A single cylinder engine is used to estimate engine performance characteristics for conventional camshaft. In addition, a model engine is designed and constructed to apply the Variable Valve Timing control system. The investigations show that the system is flexible throughout the entire range of operation speeds and is able to alter valve timing concerning both valve opening and closing. The ability of valve opening and closing can be realized with rates higher than these of the conventional timing mechanisms.","PeriodicalId":7286,"journal":{"name":"Advances in Automobile Engineering","volume":"47 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82167742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Friction-Induced Noise and Vibrations: Diagnosis and Prognosis 摩擦引起的噪声和振动:诊断和预后

Advances in Automobile Engineering Pub Date : 2013-10-18 DOI: 10.4172/2167-7670.1000E118

Gang Chen

引用次数: 3

Key Barriers to the Profitable Commercialization of Plug-in Hybrid and Electric Vehicles 插电式混合动力和电动汽车商业化盈利的主要障碍

Advances in Automobile Engineering Pub Date : 2013-10-07 DOI: 10.4172/2167-7670.1000E117

M. S. Alam

引用次数: 6

Design, Modeling and Development of a Serial Hybrid Motorcycle with HCCI Engine HCCI发动机串联混合动力摩托车的设计、建模与开发

Advances in Automobile Engineering Pub Date : 2013-09-04 DOI: 10.4172/2167-7670.1000104

Yuh-Yih Wu, Chen Duan, Kai-Xian Hong, Hsien-Chi Tsai, C. Hoff

{"title":"Design, Modeling and Development of a Serial Hybrid Motorcycle with HCCI Engine","authors":"Yuh-Yih Wu, Chen Duan, Kai-Xian Hong, Hsien-Chi Tsai, C. Hoff","doi":"10.4172/2167-7670.1000104","DOIUrl":"https://doi.org/10.4172/2167-7670.1000104","url":null,"abstract":"This paper discusses the design, modeling, and development of small motorcycle equipped with a HCCI engine in an series hybrid configuration. A mathematical model was developed using MATLAB/Simulink and used to size the powertrain components and to predict fuel economy. A conventional 125 cc spark ignition engine was modified to run in HCCI combustion mode and integrated into a prototype vehicle. Dual-fuel and external EGR strategies were used to upgrade the engine speed and torque capabilities of the engine to meet the requirements of the powertrain. An electrical generator, hub-motor, battery pack and other power electronics devices were used to form the electrical system for the vehicle. The advantages of the proposed design compared to the original motorcycle with SI engine and CVT transmission are: 1) a reduction in noxious emissions due to the HCCI combustion, and 2) higher fuel economy in city driving because of the HCCI engine and series hybrid powertrain. Fuel economy was measured by driving the motorcycle on a chassis dynamometer using a sequence of ECE-40 driving cycles. The overall fuel economy was measured to be 73.7km/L which represents a 139.3% increase in fuel economy over the baseline vehicle.","PeriodicalId":7286,"journal":{"name":"Advances in Automobile Engineering","volume":"322 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2013-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78320249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Development of the Linear Matching Method and its and#195;and#162;and#194;and#8364;and#194;and#8482; Software Tool for the Design and Life Assessment of Mechanical Structures 线性匹配方法及其与#195、#162、#194、#8364、#194、#8482的发展机械结构设计与寿命评估软件工具

Advances in Automobile Engineering Pub Date : 2013-08-30 DOI: 10.4172/2167-7670.1000E115

Haofeng Chen

引用次数: 1

Sensor Data Acquisition, Manipulation, and Transmission 传感器数据采集、操作和传输

Advances in Automobile Engineering Pub Date : 2013-08-30 DOI: 10.4172/2167-7670.1000E114

Shaopeng Cheng

引用次数: 1

Respiratory Quotient (Rq), Exhaust Gas Analyses, CO2 Emission and Applications in Automobile Engineering 呼吸商(Rq)、废气分析、CO2排放及其在汽车工程中的应用

Advances in Automobile Engineering Pub Date : 2013-08-30 DOI: 10.4172/2167-7670.1000E116

K. Annamalai

引用次数: 13

Performance Analysis of Hybrid and Full Electrical Vehicles Equipped with Continuously Variable Transmissions 配备无级变速器的混合动力与全电动汽车性能分析

Advances in Automobile Engineering Pub Date : 2013-03-07 DOI: 10.4172/2167-7670.1000103

A. Elmarakbi, Q. Ren, R. Trimble, M. Elkady

{"title":"Performance Analysis of Hybrid and Full Electrical Vehicles Equipped with Continuously Variable Transmissions","authors":"A. Elmarakbi, Q. Ren, R. Trimble, M. Elkady","doi":"10.4172/2167-7670.1000103","DOIUrl":"https://doi.org/10.4172/2167-7670.1000103","url":null,"abstract":"The main aim of this paper is to study the potential impacts in hybrid and full electrical vehicles performance by utilising continuously variable transmissions. This is achieved by two stages. First, for Electrical Vehicles (EVs), modelling and analysing the powertrain of a generic electric vehicle is developed using Matlab/Simulink-QSS Toolkit, with and without a transmission system of varying levels of complexity. Predicted results are compared for a typical electrical vehicle in three cases: without a gearbox, with a Continuously Variable Transmission (CVT), and with a conventional stepped gearbox. Second, for Hybrid Electrical Vehicles (HEVs), a twin epicyclic power split transmission model is used. Computer programmes for the analysis of epicyclic transmission based on a matrix method are developed and used. Two vehicle models are built-up; namely: traditional ICE vehicle, and HEV with a twin epicyclic gearbox. Predictions for both stages are made over the New European Driving Cycle (NEDC).The simulations show that the twin epicyclic offers substantial improvements of reduction in energy consumption in HEVs. The results also show that it is possible to improve overall performance and energy consumption levels using a continuously variable ratio gearbox in EVs.","PeriodicalId":7286,"journal":{"name":"Advances in Automobile Engineering","volume":"26 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89671446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Modeling and Control of a Hybrid Hydraulic-Electric Propulsion System 液压-电力混合推进系统的建模与控制

Advances in Automobile Engineering Pub Date : 2013-02-02 DOI: 10.4172/2167-7670.1000102

S. Hamzehlouia, A. Izadian, S. Anwar

引用次数: 4

Alternative Fuels and Renewable Energy Strategies in the Energy Revolution 能源革命中的替代燃料和可再生能源战略

Advances in Automobile Engineering Pub Date : 2013-01-01 DOI: 10.4172/2167-7670.1000E113

E. Ubong

引用次数: 2