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BRAKING TORQUE TRANSFER SIMULATION BY DYNAMIC PROGRAMMING 基于动态规划的制动转矩传递仿真
JSAE Review Pub Date : 2014-08-05 DOI: 10.1504/IJVD.1984.061098
M. Inoue, N. Takeda, T. Gou
{"title":"BRAKING TORQUE TRANSFER SIMULATION BY DYNAMIC PROGRAMMING","authors":"M. Inoue, N. Takeda, T. Gou","doi":"10.1504/IJVD.1984.061098","DOIUrl":"https://doi.org/10.1504/IJVD.1984.061098","url":null,"abstract":"It is very difficult to evaluate the proportion of braking torque using the conventional method, because the braking effectiveness at each wheel changes independently with the passage of time as a result of use of a vehicle. This phenomenon is herein called \"braking torque transfer\". To solve these problems a method has been developed in which the factors causing braking torque transfer are examined and combined by a statistical method and programmed, thereby permitting more accurate evaluation in a shorter period of time. (TRRL)","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83743616","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: 0
HEAVY DUTY TRUCK RIDE-COMFORT ANALYSIS BY COMPUTER SIMULATION 重型卡车乘坐舒适性的计算机仿真分析
JSAE Review Pub Date : 2014-08-05 DOI: 10.1504/IJVD.1986.061180
N. Sakuma, I. Kadono, M. Dohi, H. Nakai
{"title":"HEAVY DUTY TRUCK RIDE-COMFORT ANALYSIS BY COMPUTER SIMULATION","authors":"N. Sakuma, I. Kadono, M. Dohi, H. Nakai","doi":"10.1504/IJVD.1986.061180","DOIUrl":"https://doi.org/10.1504/IJVD.1986.061180","url":null,"abstract":"The vibration and ride–comfort of some heavy duty trucks was analyzed by the simple model developed by finite element method. Ride–comfort of heavy duly trucks is significantly influenced by bending vibration of the frame, so the frame was modeled by a BAR element having a number or different cross sections, so a separate model as a rigid body was established. For non–linear components such as mounting rubber, tyre, leaf spring, the best data from specific areas of vibration were selected for inputting into the model and corrections were added to the model. For modeling check, frequency response of consolidating several kinds of component models was calculated in the initials stage of the system model. Each component model was consolidated with the frame model to obtain the system model. From this system model calculation results of frequency response and PSD response were obtained for making comparison will actual test and were found to be sufficient to make qualitative evaluation of ride–comfort. Consequently this simulation method was used in design stages, such as development or cab–suspension and improvement or ride–comfort of tractor pulling trailer.","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84223786","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
A demonstration of prototype near-neat-methanol vehicle controlled fleet test 近甲醇汽车控制车队试验样机演示
JSAE Review Pub Date : 2014-08-04 DOI: 10.1504/IJVD.1991.061683
T. Hoshino, N. Iwai
{"title":"A demonstration of prototype near-neat-methanol vehicle controlled fleet test","authors":"T. Hoshino, N. Iwai","doi":"10.1504/IJVD.1991.061683","DOIUrl":"https://doi.org/10.1504/IJVD.1991.061683","url":null,"abstract":"In 1984, the Japanese Ministry of International Trade and Industry established a research project with the aim of implementing full–scale verification tests concerning fuel specification, development of engines that use methanol fuel, and problems related to storage and distribution of fuel from the viewpoint of safety, economics and lower pollution. As a result of experimental investigations carried out so far, methanol with 15% petrol (also known as M85) was determined to be optimal for Otto–type mechanical engines. This paper describes the controlled fleet test, which began in March 1989 and is to be conducted for three years with eight prototype 12 vehicles running on M85. The vehicles are supplied by eight Japanese automobile manufacturers. The purpose of this test is to accumulate data concerning vehicle driveability, durability, exhaust emissions, fuel economy, engine lubricating oil and fuel stability. These data will be used to investigate the feasibility and economy of M85–fuelled vehicles.","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78694465","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: 1
Analysis of the Steady Flow Characteristics through a Poppet Valve 锥阀稳态流动特性分析
JSAE Review Pub Date : 2004-03-08 DOI: 10.4271/2004-01-1676
R. Gault, D. Thornhill, R. Fleck, D. O. Mackey, G. Chatfield
{"title":"Analysis of the Steady Flow Characteristics through a Poppet Valve","authors":"R. Gault, D. Thornhill, R. Fleck, D. O. Mackey, G. Chatfield","doi":"10.4271/2004-01-1676","DOIUrl":"https://doi.org/10.4271/2004-01-1676","url":null,"abstract":"This paper describes the flow characteristics in the near throat region of a poppet valve under steady flow conditions. An experimental and theoretical procedure was undertaken to determine the total pressure at the assumed throat region of the valve, and also at a downstream location. Experiments of this type can be used to accurately determine the flow performance of a particular induction system. The static pressure recovery was calculated from the near throat region of the valve to the downstream location and was shown to be dependent on valve lift. Total pressure profiles suggest that for this particular induction system, the majority of pressure loss occurs downstream of the valve for lift/diameter ratios up to 0.1, and upstream of the valve for lift/diameter ratios greater than 0.1. Negligible pressure recovery was shown to exist from the cylindrical periphery of the valve head to the downstream location for all valve lifts, indicating that the flow had probably separated completely from the trailing edge of the valve seating face. The calculated discharge coefficients, based on the geometric throat static pressure measurements on the seating face, were in general less than those determined using the downstream static pressure, by as much as 12% in some instances towards the valves lower mass flow rate range.","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"38 1","pages":"1080-1093"},"PeriodicalIF":0.0,"publicationDate":"2004-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76348438","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: 6
Development of a Sensor-less Electro-Hydraulic Valve Actuator for a Cam-less Engine 无凸轮发动机无传感器电液阀致动器的研制
JSAE Review Pub Date : 2004-01-01 DOI: 10.5739/ISFP.2005.256
Hirohisa Tanaka, Nozomi Toyoda
{"title":"Development of a Sensor-less Electro-Hydraulic Valve Actuator for a Cam-less Engine","authors":"Hirohisa Tanaka, Nozomi Toyoda","doi":"10.5739/ISFP.2005.256","DOIUrl":"https://doi.org/10.5739/ISFP.2005.256","url":null,"abstract":"A fully electronically controllable valve-actuator has potentials of improving volumetric efficiency at gas exchange, and of presenting variable compression-ratio. This paper describes a new type of hydro-mechanical position-servo electro-hydraulic valve actuator for a cam-less engine. The piston is positioned hydro mechanical feedback mechanism, which balances the flow rate of the feedback slot to the pilot valve. The feedback-slot opens its area in proportion to the piston displacement. This mechanism succeeds to decelerate the landing-velocity of 0.2m/s at a working speed of 1.0m/s for valve lift of 12mm, and to actuate the valve at a volumetric efficiency of 95% within lag times of opening 18ms and closing 8ms, that is possible to work at an equivalent engine rotational speed of 2100rpm. The actuator is energized by the hydraulic power source of flow-rate of 6.7L/min and pressure of 14MPa.","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"43 1","pages":"119-121"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74948111","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: 1
Steady-state paint flow under high centrifugal force: 高离心力下的稳态油漆流动：
JSAE Review Pub Date : 2003-10-01 DOI: 10.1016/S0389-4304(03)00075-4
Shigenori Kazama
{"title":"Steady-state paint flow under high centrifugal force:","authors":"Shigenori Kazama","doi":"10.1016/S0389-4304(03)00075-4","DOIUrl":"https://doi.org/10.1016/S0389-4304(03)00075-4","url":null,"abstract":"<div><p>A rotary atomizer, which is generally used in car body painting, atomizes liquid paint into micro-particles at a rate of several hundred ml/min. The diameter of the micro-particles is not uniform, but has a broad size distribution ranging from near zero to over several hundreds of microns. It is known that this distribution affects transfer efficiency and paint finish quality. This paper discusses the relationship between liquid paint flow and atomization when the inner shape of the bell was changed, focusing on paint flow just before discharge from the bell edge.</p></div>","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"24 4","pages":"Pages 489-494"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0389-4304(03)00075-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72080089","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: 14
Independent wheel torque control of small-scale electric vehicle for handling and stability improvement 小型电动汽车的独立车轮扭矩控制，以提高操控性和稳定性
JSAE Review Pub Date : 2003-10-01 DOI: 10.1016/S0389-4304(03)00080-8
Motoki Shino , Masao Nagai
{"title":"Independent wheel torque control of small-scale electric vehicle for handling and stability improvement","authors":"Motoki Shino ,&nbsp;Masao Nagai","doi":"10.1016/S0389-4304(03)00080-8","DOIUrl":"https://doi.org/10.1016/S0389-4304(03)00080-8","url":null,"abstract":"<div><p><span>This paper examines the feasibility of the proposed control in a small-scale electric vehicle with two independent motors equipped at the rear axles. The direct yaw moment control system is designed with the application of model matching control theory. For realizing the proposed system in an actual electric vehicle, it is necessary to estimate the </span>side slip angle instead of measuring it directly. A speed-dependent observer is proposed in this paper. Experiments using actual small-scale electric vehicle are carried out to verify the effectiveness of the proposed chassis control system on lateral stability in a J-turn test and lane change tests.</p></div>","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"24 4","pages":"Pages 449-456"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0389-4304(03)00080-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72030231","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: 106
Development of a motor-assisted 4WD system for small front-wheel-drive vehicles 用于小型前轮驱动车辆的电机辅助四轮驱动系统的开发
JSAE Review Pub Date : 2003-10-01 DOI: 10.1016/S0389-4304(03)00084-5
Kimitaka Nakamura , Hajime Kosaka , Keiji Kadota , Kouichi Shimizu
{"title":"Development of a motor-assisted 4WD system for small front-wheel-drive vehicles","authors":"Kimitaka Nakamura ,&nbsp;Hajime Kosaka ,&nbsp;Keiji Kadota ,&nbsp;Kouichi Shimizu","doi":"10.1016/S0389-4304(03)00084-5","DOIUrl":"https://doi.org/10.1016/S0389-4304(03)00084-5","url":null,"abstract":"<div><p>The objective of this paper is to introduce a newly developed motor-assisted 4WD system for small front-wheel-drive vehicles. We studied the performance needed by 4WD vehicles in daily use, especially in snowy areas, and concluded that start-off traction on low-μ roads is the most important requirement. This new system is composed of a simple motor drive unit with minimum driving force, but through integrated control of the engine and motor torque, it provides ample 4WD performance on snowy and icy roads and on sandy beaches.</p></div>","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"24 4","pages":"Pages 417-424"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0389-4304(03)00084-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72030232","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: 14
Development of a tire pressure monitoring system for motorcycles 摩托车胎压监测系统的研制
JSAE Review Pub Date : 2003-10-01 DOI: 10.1016/S0389-4304(03)00085-7
T. Yamagiwa, Masayoshi Orita, T. Harada
{"title":"Development of a tire pressure monitoring system for motorcycles","authors":"T. Yamagiwa, Masayoshi Orita, T. Harada","doi":"10.1016/S0389-4304(03)00085-7","DOIUrl":"https://doi.org/10.1016/S0389-4304(03)00085-7","url":null,"abstract":"","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"91 1","pages":"495-496"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87489285","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: 10
Advertiser's Index 广告商索引
JSAE Review Pub Date : 2003-10-01 DOI: 10.1016/S0389-4304(03)00092-4
{"title":"Advertiser's Index","authors":"","doi":"10.1016/S0389-4304(03)00092-4","DOIUrl":"https://doi.org/10.1016/S0389-4304(03)00092-4","url":null,"abstract":"","PeriodicalId":100855,"journal":{"name":"JSAE Review","volume":"24 4","pages":"Page 515"},"PeriodicalIF":0.0,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0389-4304(03)00092-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72017104","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: 0
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