International Journal of Automotive Technology最新文献_第9页

Dimensional Analysis of Ground Vehicle in Extreme Maneuver Scenarios 极端机动情况下地面车辆的尺寸分析

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-22 DOI: 10.1007/s12239-024-00067-x

Yeayoung Park, Changsun Ahn

引用次数: 0

Analysis of Steering Performance for Wheel-Track Composite Vehicle Based on New Differential Steering Mechanism 基于新型差动转向机制的轮轨复合车辆转向性能分析

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-21 DOI: 10.1007/s12239-024-00062-2

Yueye Li, Shengzhuo Yao, Xinbo Chen, Qifan Ran, Jianbo Feng

{"title":"Analysis of Steering Performance for Wheel-Track Composite Vehicle Based on New Differential Steering Mechanism","authors":"Yueye Li, Shengzhuo Yao, Xinbo Chen, Qifan Ran, Jianbo Feng","doi":"10.1007/s12239-024-00062-2","DOIUrl":"https://doi.org/10.1007/s12239-024-00062-2","url":null,"abstract":"To solve the complicated steering control of small vehicles in the agriculture and difficult steering on complex roads, this study designed a wheel-track composite vehicle. The vehicle incorporated a novel power differential steering mechanism with dual driving, enabling steering through the differential rotation of the rear two wheels. The vehicle is simple to control, small in size, and is able to work under the conditions of complex roads, such as hills, mountains, and muddy land. The study initially focused on presenting the design, theoretical analysis, and dynamic simulation analysis of the power differential steering mechanism with dual driving. Subsequently, the vehicle underwent modeling and simulation using UG software to validate the reasonability of the values. Finally, utilizing test data, four mathematical models for the actual steering radius of the vehicle on four road surfaces were derived through neural network fitting. The maximum relative error between the model results and the actual steering radius value was reported to be 3.53%. The advantages of the vehicle included continuous radius steering, deceleration and torsion increase, differential lock, etc. This made it well-suited for applications in all-terrain military and civilian vehicles, as well as various special equipment mobile platforms equipped with walking devices.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140204295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Cost Effective Solution to an Automated Valet Parking System 经济高效的自动代客泊车系统解决方案

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-21 DOI: 10.1007/s12239-024-00031-9

Ömer Dönmez, Ondřej Vaculín, Thiago de Borba

引用次数: 0

Design of the Steering Feedback Controller of a Steer-by-Wire System Using Admittance Model 利用导纳模型设计线控转向系统的转向反馈控制器

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-12 DOI: 10.1007/s12239-024-00055-1

Hyungjeen Choi, Seibum Choi

{"title":"Design of the Steering Feedback Controller of a Steer-by-Wire System Using Admittance Model","authors":"Hyungjeen Choi, Seibum Choi","doi":"10.1007/s12239-024-00055-1","DOIUrl":"https://doi.org/10.1007/s12239-024-00055-1","url":null,"abstract":"The steer-by-wire (SbW) system is a promising system in the realm of automotive engineering. It substitutes the mechanical connection between the steering wheel and the front road wheels with an electronic signal-based functional connection. The SbW system offers several advantages over conventional steering systems, including weight reduction, reduced vibration, and enhanced steering functionality configuration. However, the absence of a mechanical linkage in the SbW system gives rise to certain challenges. The SbW system requires endowing adequate steering feel such as damping and reaction force using feedback motor, and the road wheel needs robust control of pinion motor for normal load variation by passengers and self-aligning torque as external disturbance. The SbW system is composed of the steering feedback module (SFM) and the road wheel module (RWM). This paper proposes a control approach to generate steering feel for SFM, in which steering feel is generated using an admittance model based on velocity control. A disturbance observer is applied to ensure robustness of velocity control. The steering wheel torque versus steering wheel angle (T–A) curve is used to analyze steering feel characteristic and evaluate steering feel. The proposed steering system is validated through experiments that confirm its ability to provide satisfactory steering feel for vehicles. This work may offer a novel solution for the design of advanced steering systems in the field for the future mobility such as an autonomous driving.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140129407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Spoke Parameters on Load Capacity of Non-Pneumatic Tires Using Orthogonal Study and Analysis of Variance 利用正交研究和方差分析分析辐条参数对非充气轮胎承载能力的影响

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-11 DOI: 10.1007/s12239-024-00013-x

{"title":"Influence of Spoke Parameters on Load Capacity of Non-Pneumatic Tires Using Orthogonal Study and Analysis of Variance","authors":"","doi":"10.1007/s12239-024-00013-x","DOIUrl":"https://doi.org/10.1007/s12239-024-00013-x","url":null,"abstract":"<h3>Abstract</h3> This study aims to investigate the relationship between the static characteristics of non-pneumatic tires (NPTs) and spoke design parameters using the finite element (FE) method. A three-dimensional FE model of the NPT was established. The influence of different ranges of stress and strain on the calculation accuracy of the Neo-Hookean and Yeoh constitutive models was analyzed. Subsequently, the main design parameters—spoke thickness, spoke number, and arc curvature—were selected according to the geometric characteristics of the spokes. The effects of these three parameters on the vertical stiffness, maximum spoke stress, overall maximum stress, and maximum and average contact pressures were examined using univariate and multivariate analysis methods. The range and variance analysis results indicated that the spoke thickness, spoke number, and arc curvature had a significant effect on the vertical stiffness. Finally, the relationship between the vertical stiffness and product of the spoke thickness and number was obtained using a nonlinear fitting method. When the arc curvature of the spoke was less than 5 m−1, the errors between the calculated and simulated vertical stiffness did not exceed 5%. This observation can be used to facilitate the rapid design of spoke parameters under different load capacity requirements.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Meta-Model Based Blade Optimization Design Considering the Fluid Characteristics of Vehicle Energy Harvesting 基于元模型的叶片优化设计，考虑车辆能量收集的流体特性

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-09 DOI: 10.1007/s12239-024-00049-z

Hyung Jun Kim, Seong Min Kang, Seon Myeong Kim, Jin Ho Kim

{"title":"Meta-Model Based Blade Optimization Design Considering the Fluid Characteristics of Vehicle Energy Harvesting","authors":"Hyung Jun Kim, Seong Min Kang, Seon Myeong Kim, Jin Ho Kim","doi":"10.1007/s12239-024-00049-z","DOIUrl":"https://doi.org/10.1007/s12239-024-00049-z","url":null,"abstract":"The advancement of transportation machinery has played a crucial role in driving global economic and societal growth. However, this progress has also given rise to challenges, such as the depletion of chemical resources and the escalating impact of climate change. As a result, automobile companies are now prioritizing energy efficiency and transitioning towards eco-friendly vehicles. In response to this demand, various efforts have been made to harvest energy and improve the efficiency of eco-friendly vehicles, with energy-harvesting dampers emerging as a promising solution. This study focuses on the optimization of the shape and design of a rotary power generation system integrated within an energy harvesting system. The primary objective of the rotary power generation system is to convert mechanical motion into electrical energy, thereby enhancing the overall efficiency and sustainability of eco-friendly vehicles. By considering the specific characteristics of SAE 30 W working oil within the damper, the optimal blade shape and generator can be determined to maximize the power generation capabilities of the system.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Internal Model-Based Robust Path-Following Control for Autonomous Vehicles 基于内部模型的自动驾驶汽车鲁棒路径跟踪控制

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-05 DOI: 10.1007/s12239-024-00003-z

Adorján Kovács, István Vajk

引用次数: 0

Experimental Research on the Carbon Dioxides Reduction Potential by Substitution Gasoline with Ethanol and Propane Under Reactivity Controlled Compression Ignition in a Single Cylinder Engine 单缸发动机在反应控制压燃条件下用乙醇和丙烷替代汽油降低二氧化碳排放潜力的实验研究

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-03-03 DOI: 10.1007/s12239-024-00026-6

Jeongwoo Lee, Sanghyun Chu, Jaegu Kang, Kyoungdoug Min

{"title":"Experimental Research on the Carbon Dioxides Reduction Potential by Substitution Gasoline with Ethanol and Propane Under Reactivity Controlled Compression Ignition in a Single Cylinder Engine","authors":"Jeongwoo Lee, Sanghyun Chu, Jaegu Kang, Kyoungdoug Min","doi":"10.1007/s12239-024-00026-6","DOIUrl":"https://doi.org/10.1007/s12239-024-00026-6","url":null,"abstract":"In this experiment, it was experimentally investigated the combustion and exhaust characteristics, as well as the thermal efficiency, of RCCI combustion using gasoline, ethanol, and propane as low-reactivity fuels under four operating conditions. For each operating condition, gISNOx was limited to 0.15 g/kWh, and gISSmoke was limited to below 15 mg/kWh. The experiment was conducted by determining the operating conditions that satisfied these limitations and resulted in the highest city thermal efficiency. The low-reactivity fuels were supplied by port injection, while diesel was directly injected into the combustion chamber using a diesel injector. As a result, when gasoline is replaced with low-carbon fuels like ethanol and propane, the reduction in CO2 emissions occurred. Under maximum power conditions, using ethanol allowed for a maximum reduction in CO2 emissions of 6.81%. Depending on the driving conditions, ethanol showed a reduction ranging from 3.60 to 6.81%, while propane exhibited a reduction ranging from 3.10 to 5.64%. Additionally, by substituting with ethanol and propane, the GIE could be improved up to 44.73 and 43.56%, respectively.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140018329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Misfire Detection Index Distinguishing the Difference of the Engine Angular Acceleration Between Two Specified Teeth of the Sensor Wheel 区分传感器轮两个指定齿间发动机角加速度差值的失火检测指数

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-02-28 DOI: 10.1007/s12239-024-00059-x

Poong Gyoo Han

{"title":"Misfire Detection Index Distinguishing the Difference of the Engine Angular Acceleration Between Two Specified Teeth of the Sensor Wheel","authors":"Poong Gyoo Han","doi":"10.1007/s12239-024-00059-x","DOIUrl":"https://doi.org/10.1007/s12239-024-00059-x","url":null,"abstract":"This study proposes the slope of the engine speed trend line (SlopeESTL) as a new misfire detection index for a four-cylinder engine, not limited to four-cylinder engines. SlopeESTL is defined as angular acceleration between the first and the last teeth of each cylinder in the cycle. SlopeESTL is flat and near 0 when the cylinder is normally combusted. A misfire leads to an abrupt decrease under the threshold. While it is affected by post oscillation just after misfires, there is enough margin between SlopeESTL of the misfired cylinder and post-oscillated SlopeESTL. The mean misfire detection and detection fault rates of the SlopeESTL were over 97% and under 1% in this study, making it a good misfire detection index. However, most of the first misfired cylinder on dual cylinder misfire can seldom be detected as a misfire at the high engine speed over 5000 rpm in the single cylinder misfire pattern. This is caused by the inertia force of the crankshaft system and is a demerit for the misfire detection index. It is one of the two RPM slopes used to calculate the Gap and ΔGap slopes proposed by the author. SlopeESTL can be used with Gap and ΔGap slopes, because they have their specific characteristics as misfire detection indices and their combination logic should be studied more. Furthermore, SlopeESTL can be affected by the machining tolerance of the teeth in the sensor wheel, torsional vibration, and non-uniformity in the stroke operation of the piston. However, it uses the tooth time measured using the existing crankshaft position sensor; an additional sensor is not required, which makes it economical.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140004518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Influence of Different Internal Exhaust Gas Recirculation Formation Modes on the Combustion Performance of Gasoline, Methanol, and Ethanol SI Engine 不同废气内部再循环形成模式对汽油、甲醇和乙醇 SI 发动机燃烧性能的影响研究

IF 1.6 4区工程技术

International Journal of Automotive Technology Pub Date : 2024-02-26 DOI: 10.1007/s12239-024-00039-1

{"title":"Study on the Influence of Different Internal Exhaust Gas Recirculation Formation Modes on the Combustion Performance of Gasoline, Methanol, and Ethanol SI Engine","authors":"","doi":"10.1007/s12239-024-00039-1","DOIUrl":"https://doi.org/10.1007/s12239-024-00039-1","url":null,"abstract":"<h3>Abstract</h3> To promote the efficient and clean application of low-carbon alcohol fuels in internal combustion engines, this article compares and studies the effects of three internal EGR strategies, including exhaust valve lift strategy (EVVL), exhaust timing advance strategy (EVT), and intake valve timing advance strategy (IVT), on the combustion, performance, and emissions of gasoline, methanol, and ethanol. Under the same internal EGR rate, the internal EGR temperature generated by the three valve strategies is, from highest to lowest, as follows: EVT, EVVL, and IVT. With an increase in internal EGR in the cylinder, the ignition delay and combustion duration under the EVVL and IVT strategies increase progressively, whereas the ignition delay under the EVT strategy tends to first shorten and then lengthen. Methanol has the shortest combustion duration. Furthermore, methanol and ethanol have lower heat transfer and exhaust losses than gasoline. The thermal efficiency of methanol, ethanol, and gasoline can be raised by 7.7%, 7.5%, and 7.2%, respectively, using the IVT strategy; 3.1%, 3.9%, and 4.6% using the EVVL strategy; and 6.82%, 6.85%, and 7% using the EVT strategy. The combination of methanol and ethanol with internal EGR technology greatly reduces NOx emissions, with an 84.5% reduction under the EVVL strategy.","PeriodicalId":50338,"journal":{"name":"International Journal of Automotive Technology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0