Archive

12 August 2024, Volume 49 Issue 15 Previous Issue   
---
New Energy Vehicle
Intelligent Connected Vehicle
Design and Research
Testing and Experiment
Process·Materials
Automobile Education
Standards·Regulations·Management
Reviews


For Selected:

Download Citations EndNote Ris BibTeX

Toggle Thumbnails

New Energy Vehicle

Select

Design of Fuel Cell Suspension Busbar in Hydrogen Fuel Cell Vehicles WU Gang 2024, 49(15): 1-8.  DOI: 10.16638/j.cnki.1671-7988.2024.015.001 Abstract ( )   PDF (991KB) ( )   The article discusses the issues with the conventional design of busbars in the expansion graphite stack fuel cell system of hydrogen fuel cell vehicles and proposes corresponding solutions. In the operation of the whole vehicle, due to factors such as air pressure, the length and size of the expanded graphite reactor have periodic changes, and in the last stage of the life cycle, the total length of the expanded graphite reactor is about 6 mm shorter than that of the factory. The problem caused by this is that the fixed point of the busbar in the main circuit of the reactor is located at both ends of the reactor, and the change of the length of the reactor will cause deformation and stress concentration of the copper bar. The article uses the theory of inventive problem solving (TIPS) to conduct an in-depth analysis of the phenomena, summarizing the problems in the current conventional copper busbar design methods for expansion graphite stacks based on possible risks and proposes a suspended busbar solution. This avoids the potential failure risks of copper busbars in the conventional design, providing a new direction for the design of busbars in similar expansion graphite stacks in the future. References | Related Articles | Metrics

Select

Research on Service Quality of Charging Piles in Taiyuan City Based on Customer Satisfaction TANG Xiujia, GU Zhipeng, WU Xiaoling, WU Liming 2024, 49(15): 9-13.  DOI: 10.16638/j.cnki.1671-7988.2024.015.002 Abstract ( )   PDF (594KB) ( )   The public charging piles are an important infrastructure to ensure the rapid development of the new energy vehicle industry, and to discovering and improving the problems of public charging piles can promote the development of the battery electric vehicle industry, and therefore, this paper takes Taiyuan city as an example to investigate thoroughly customers' satisfaction with the service quality of charging piles. Firstly, based on the SERVQUAL theory as the design principle of the questionnaire, SPSS software is used to analyze the reliability and validity of the data obtained by the questionnaire, and on the premise that the reliability and validity of the data meets the requirements, the analytic hierarchy process is used to analyze the service quality of public charging piles in Taiyuan city. Then the hierarchical structure model is established, the judgment matrix is constructed, and the characteristic vector Wi and the the largest eigenvalue λmax of each judgment matrix are calculated through hierarchical single ranking, and the consistency test is carried out, and finally the weight of each evaluation index is obtained. The results show that the service quality score of public charging piles in Taiyuan city is 3.67, the overall level is above medium, and the indicators that customers pay more attention to are whether the distribution is reasonable, the number of charging piles in a district and fault maintenance. References | Related Articles | Metrics

Select

Maintenance and Fault Analysis of a DHT Electronic Drive Bridge LIU Kan1,2 , NIU Ahui*2,3 , YAN Bingqiang1 , LUO Yingzhe3 2024, 49(15): 14-17.  DOI: 10.16638/j.cnki.1671-7988.2024.015.003 Abstract ( )   PDF (3016KB) ( )   In order to improve the maintenance and repair efficiency of new energy hybrid vehicle, the electronic drive axle of new energy hybrid vehicle is studied. This paper analyzes the structure of the electronic drive axle of a new energy vehicle dedicated hybrid transmission (DHT), common fault phenomena and their solutions of the dedicated hybrid transmission electronic drive axle, and based on research and organization of commondedicated hybrid transmission electronic drive axle fault maintenance precautions. This study has a certain reference significance for the maintenance, fault diagnosis and technical research of the electronic drive axle of the new energy hybrid electric vehicle. References | Related Articles | Metrics

Intelligent Connected Vehicle

Select

Research on Security of Automotive Domain Control System Based on Trusted Execution Environment XU Chuankang1, LI Zhongyue2, LIU Tianyu2, CHONG Tonghong2, YANG Faxue*2 2024, 49(15): 18-25,73.  DOI: 10.16638/j.cnki.1671-7988.2024.015.004 Abstract ( )   PDF (838KB) ( )   With the continuous development of automotive technology, the safety issues of automotive systems are becoming increasingly prominent. Traditional automotive systems have many potential security risks, such as remote attacks, vehicle data leaks, and unauthorized access. To address these issues, researchers and car manufacturers have begun to focus on the application of trusted execution environments. A trusted execution environment is a secure computing environment that provides hardware and software level security protection to protect sensitive data and perform critical tasks. Introducing a trusted execution environment into the automotive domain controller can effectively improve the security and reliability of the system. The paper aims to explore the security of automotive domain control systems based on trusted execution environments. This paper studies existing trusted execution environment technologies and analyzes their application value in the automotive field, and discusses the impact of trusted execution environments on the security of automotive domain controller systems. By conducting in-depth research on the application of trusted execution environments in the automotive field, it can provide guidance and suggestions for automobile manufacturers and researchers on how to improve the security of automotive domain controller systems. The ultimate goal is to build a safer and more reliable automotive system, protecting user privacy and data security. References | Related Articles | Metrics

Design and Research

Select

Research on Semi-Active Suspension Strategy Based on Fuzzy Logic and Skyhook Control LIU Zhonghai1 , WANG Shengkun*1, GUAN Huaiguang2 , LI Xuepeng1 , LIN Shuai1 2024, 49(15): 26-29,58.  DOI: 10.16638/j.cnki.1671-7988.2024.015.005 Abstract ( )   PDF (922KB) ( )   In order to improve the vibration or instability caused by the traditional switching skyhook control, a semi-active suspension control strategy which combines the idea of skyhook and fuzzy control is proposed in this paper. Firstly, by taking the dynamic speed of the shock absorber and the mass speed of the spring load as the inputs of fuzzy control, the adaptive damping coefficient in the current state is solved by fuzzy rule operation; Then, input to the skyhook control to calculate the damping force of the current state, and then the dynamic performance of the vehicle is adjusted; Finally, the control strategy is simulated and verified by CarSim and Simulink software. The results show that, compared with passive suspension and skyhook control, the root mean square of vehicle vertical acceleration decreases by 50.08% and 6.41% respectively, which improves the vehicle comfort to a certain extent. References | Related Articles | Metrics

Select

Design of a New Type of Muffler Applied to Automotive Intake Systems ZHAO Haoran, WANG Yu, REN Fangyang, CHANG Zhuan 2024, 49(15): 30-33.  DOI: 10.16638/j.cnki.1671-7988.2024.015.006 Abstract ( )   PDF (1089KB) ( )   In recent years, with the sharp increase in the number of automobile in China, automotive noise is become one of the main sources of urban noise pollution, directly affecting the physical and mental health of residents. The problem of automotive noise pollution urgently needs to be solved. Among the sources of automotive noise, intake noise is extremely complex due to the gas fluid dynamics characteristics, so there is no fixed noise reduction measure. In order to solve this problem, a kind of staggered composite impedance silencer is designed, which integrates air filter and Silencer. It can achieve both dust removal and noise reduction functions without generating additional resonance noise under the excitation of periodic intake pulse noise. References | Related Articles | Metrics

Select

Numerical Analysis of the Application of Stepped Spiral Groove in Dynamic Radial Gas Bearings DONG Zhiqiang1 , AN Jie2 , YU Genliang1 2024, 49(15): 34-38.  DOI: 10.16638/j.cnki.1671-7988.2024.015.007 Abstract ( )   PDF (2067KB) ( )   Changing the bearing parameters to improve its capacity and stability of the pneumatic bearing is the mainstream idea of bearing design, and considering the aerodynamic effect to improve the bearing geometry has a positive effect on the development of dynamic pressure gas bearings. In order to introduce the shock effect of the front step flow into the configuration design of the dynamic bearing, a stepped spiral groove radial dynamic pressure gas bearing is proposed in the paper. Through the aerodynamic analysis of the influence of ordinary spiral groove and stepped spiral groove on the bearing capacity, the results show that the new stepped groove structure is more conducive to improving the bearing performance of spiral groove bearings, and the research results can provide a meaningful reference for improving the design of spiral groove air bearings. References | Related Articles | Metrics

Select

Simulation of Solenoid Valve Characteristics in Automobile Engine Electronic Control Fuel System SUN Wenfu 2024, 49(15): 39-43.  DOI: 10.16638/j.cnki.1671-7988.2024.015.008 Abstract ( )   PDF (897KB) ( )   To quantitatively analyze the influence of solenoid valve parameters on its dynamic response characteristics, the mathematic models are built based on the electromagnetic theory, then the simulation research is carried out by using the simulation models. The dynamic response process of solenoid valve driven by constant voltage is simulated, the driven voltage, initial air gap distance, spring preload and the coil turns four parameters have influence on the dynamic characteristics of the solenoid valve. The solenoid valve displacement curves under different parameters are obtained, theoretically determined the relationship between the dynamic response characteristics and the structure parameters and control parameters of the solenoid valve, and provides the basis for the parameter matching of solenoid valve and the optimization design of electronic control fuel system. References | Related Articles | Metrics

Select

AMT Desktop Calibration and Optimization Method for Heavy-duty Commercial Vehicle LIU Enliang, SHEN Xiaokang, ZHANG Shuaishuai, ZOU Zhi, ZHANG Bo 2024, 49(15): 44-48.  DOI: 10.16638/j.cnki.1671-7988.2024.015.009 Abstract ( )   PDF (1286KB) ( )   This paper takes the electronic automated mechanical transmission (AMT) of a heavyduty commercial vehicle as the object, designs shift schedule under different working conditions based on factors such as slope and vehicle weight. On the basis of meeting the fuel economy and power performance of the vehicle, using AVL SPA software to analysis and optimization the driving performance of the basic shift schedule. By adjusting the basic shift schedule before the vehicle calibration, the shift becomes more reasonable, and the workload of vehicle calibration is reduced to a certain extent. The optimization method is verified through experiments to improve the driving performance of shift schedule, and has theoretical guidance significance for vehicle calibration. References | Related Articles | Metrics

Select

Research and Application of Integrated Chassis Control Technology GE Qiang, SI Kaizhong, ZHAO Cuifa, LI Guibin, XIA Jinlong 2024, 49(15): 49-54.  DOI: 10.16638/j.cnki.1671-7988.2024.015.010 Abstract ( )   PDF (1698KB) ( )   With the intelligent development of chassis, the conflicts between chassis systems become more and more obvious. In order to solve the system conflict of chassis, a layered integrated control is designed to control all chassis systems. According to the function, there are many layers of control, including signal processing, state estimation, control target calculation, vehicle control, control allocation, and each system control. The control objectives of the vehicle are determined according to the state of the vehicle and the operation of the driver, and the control objectives are uniformly assigned to each system according to the execution ability of each system, so as to meet the vehicle control objectives. It is concluded that the integrated chassis control can effectively extend the lateral linear zone of the vehicle, reduce the response delay of the vehicle and improve the overshoot in the transient to steady transition of the vehicle. Therefore, the development of integrated chassis control technology can give full play to chassis performance, optimize chassis control architecture, and make the overall control architecture clearer and more concise communication. References | Related Articles | Metrics

Select

Research and Application of Structure Chart Faced Modeling in Automotive Electronics Control System WANG Fengjuan, PU Hongqiao 2024, 49(15): 55-58.  DOI: 10.16638/j.cnki.1671-7988.2024.015.011 Abstract ( )   PDF (994KB) ( )   With the improvement of the automotive electronics control system complexity, structure chart faced graphical modeling has been replacing the data model or artificial model. Aimed at the shortage of modeling and the characteristics in automotive electronics control system, the structure chart faced visual software modeling method is used to build its model, which could build the system model conveniently, and simulate the attributes and operations in real-system better. The automotive anti-lock braking system (ABS) is used as an example to illustrate the reasonableness in modeling. References | Related Articles | Metrics

Select

Decoupled Suspension Design and Motion Simulation Analysis of Chines Formula SAE QUAN Shuanglu1 , WEI Shuai1 , FEI Fengyu 2 , HU Gailing1 2024, 49(15): 59-62.  DOI: 10.16638/j.cnki.1671-7988.2024.015.012 Abstract ( )   PDF (1726KB) ( )   The suspension system is an important part of the vehicle, contributing significantly to the handling stability of a race car. In order to adapt to the varying track conditions of the formula student electric China (FSEC) to different track environments and reduce the mutual influence of the two side wheels during leaning and rolling, a fully decoupled suspension structure is designed. This suspension system includes guiding mechanisms, shock absorbers, lateral anti-roll bars, etc. Through the geometric parameter design and mechanical analysis of two shock absorbers and their connected guiding mechanisms, the separation of the car's roll stiffness and pitch stiffness are effectively achieved. The study conducts kinematic simulation and analysis of the decoupled suspension system using MATLAB. The results indicate that this structure exhibits minimal influence between the two shock absorbers during the vehicle's leaning and pitching, enabling independent control and adjustment of the car's roll stiffness and pitch stiffness. This design enhances the overall handling performance of the race car, making it more adaptable to race tracks, thereby assisting in improving the performance of the racing team. References | Related Articles | Metrics

Select

Study on Simulation Analysis Method of Spring Flexible Motion YANG Yong 2024, 49(15): 63-67.  DOI: 10.16638/j.cnki.1671-7988.2024.015.013 Abstract ( )   PDF (1837KB) ( )   Automobile suspension spring is an important part of the suspension system, its main function is to support the upper body and ease the impact. Because it is difficult to obtain the actual motion envelope of the spring, the automobile spring motion envelope simulation industry generally uses three-dimensional software to draw several forms during the movement of the spring. However, this method fails to consider the material characteristics and forces of the spring, so the accuracy of the envelope is not high. To solve the above problems, this paper proposes a flexible motion simulation analysis method of spring, which takes into account the shape, force and material characteristics of the spring, and can effectively improve the precision and efficiency of the spring envelope production. It is of great significance for weight reduction, cost reduction, performance improvement and compact layout of hem arm and related components. References | Related Articles | Metrics

Select

Analysis of the Influence of Cross Beam Section Shape on Torsion Stiffness of Torsion Beam CHEN Zhengkang, GONG Xiaobin, CHEN Zhiyang, JING Yiming, GONG Zhijun, CHEN Hai, YANG Quan 2024, 49(15): 68-73.  DOI: 10.16638/j.cnki.1671-7988.2024.015.014 Abstract ( )   PDF (2031KB) ( )   The beam is the most important part of the torsion beam assembly, which directly affects the torsional stiffness of the torsion beam assembly. By studying the shape and design parameters of torsion beam, this paper finds out the best beam structure which can satisfy the torsional rigidity of torsion beam, and provides reference for designing similar torsion beam. The 3D torsion beam model is established by CATIA software, and the analysis module tool of CATIA software is used to analysis the influence of different beam top radius R, middle space area S and middle height difference Z on the torsion beam stiffness, and the method of beam shape optimization is summarized. The calculation results of different beam shape parameters show that this method is effective for the beam optimization design of torsion beam and has a good guiding effect on the design of tubular torsion beam. References | Related Articles | Metrics

Select

Micro-vehicle Aerodynamic Analysis and Wind Disturbance Response System Design Based on ANSYS Fluent HUANG Dejing, DUAN Chao* 2024, 49(15): 74-78,88.  DOI: 10.16638/j.cnki.1671-7988.2024.015.015 Abstract ( )   PDF (1370KB) ( )   In order to improve the driving safety of microcars under crosswinds, this study simulate wind tunnel experiments under 0°to 90°wind direction using ANSYS Fluent software to obtain and analyse the effects of different driving speeds, wind directions and wind speeds on vehicle stability. Based on the above research, a micro-vehicle crosswind disturbance response system is designed to realise intelligent determination of vehicle environment and automatic driver warning. This system can enhance the safety of micro-vehicles in complex wind environments and broaden their application scenarios, which is of great value to the research and application of micro-vehicles. References | Related Articles | Metrics

Testing and Experiment

Select

Analysis on Stiffness Optimization Design of Front Hood for a Certain Brand of Commercial Vehicle XIONG Deming1 , ZHAO Minqing*1,2, GONG Chunhui1 , CHENG Xiaoqiang1 2024, 49(15): 79-82.  DOI: 10.16638/j.cnki.1671-7988.2024.015.016 Abstract ( )   PDF (1961KB) ( )   The front engine hood of an automobile is one of its important components, and its thinwalled stamped sheet metal structure can easily lead to insufficient stiffness, resulting in abnormal noises during vehicle operation. This study investigates the issue of abnormal noises in the front engine hood of a certain brand of commercial vehicle. Firstly, finite element modeling is conducted on the front engine hood, and finite element analysis is performed under two loading conditions 400 N and 300 N applied in the Z-direction. The analysis results show that the calculated stiffness is 124.4 N/mm and 140.4 N/mm respectively, both of which do not meet the target. Subsequently, maximum deformation tests are carried out at weak positions of the hood. The test results show that the actual calculated stiffness peaks at weak sheet metal positions are 156.31 N/mm and 152.9 N/mm respectively, indicating that insufficient stiffness at the hinge locations of the front engine hood is the main cause of the abnormal noises. Finally, through design optimization, the thickness of the sheet metal at the hinges of the front engine hood is increased by 2 mm, and the improved front engine hood is subjected to finite element analysis again. The analysis results demonstrate that the stiffness is increased by 258.73 N/mm and 288.78 N/mm respectively compared to before optimization, effectively improving the stiffness and deformation of the front engine hood. This study provides empirical reference for addressing issues of abnormal noises and insufficient hinge stiffness in the front engine hood during automobile development. References | Related Articles | Metrics

Select

Research on Evaluation System of Auto Seat Noise Based on Vibration Velocity Method and 1/3 Octave Spectrum CHEN Jian1 , YU Zhaobin*2 2024, 49(15): 83-88.  DOI: 10.16638/j.cnki.1671-7988.2024.015.017 Abstract ( )   PDF (1881KB) ( )   The domestic auto seat noise detection is mainly in anechoic chamber which requires the ambient noise under 30 dB. This method exists a lot of limitations such as high construction cost, low detection efficiency and unsuitable for industrial production sites. This paper is based on the vibration velocity method which avoids interference from background and reflected sound in industrial production sites during testing. The frequency analysis range is reduced by 1/3 octave spectrum method. The sound power levels of each frequency band are analyzed and evaluated after superposition processing. The hardwares of system are composed of acceleration sensor, charge amplifier, data acquisition card and host computer which are low cost. The test results show that the system has high operating efficiency and reliable monitoring and evaluation data. The online monitoring and evaluation system can improve the efficiency, reduce costs, and improve automotive manufacturing performance of automotive manufacturing enterprises. The system can be widely promoted in the production lines of automotive manufacturing enterprises. References | Related Articles | Metrics

Select

Research on Automatic Recognition of Automobile BSR CHEN Yunfeng1 , SHI Xieda2 , YUAN Yao2 , ZHU Quan1 2024, 49(15): 89-92,123.  DOI: 10.16638/j.cnki.1671-7988.2024.015.018 Abstract ( )   PDF (2167KB) ( )   A automobile buzz, squeak and rattle (BSR) automatic recognition system is proposed to address the issues of unstable recognition and low efficiency in the current subjective evaluation methods for diagnosing automobile BSR. Through experiments, the recognition success rates of two detection methods, namely the abnormal noise recognition system and manual subjective evaluation, are compared. The experimental results show that the comprehensive recognition success rate of manual subjective evaluation is only 66.2%, while the designed automobile BSR recognition system had a comprehensive recognition rate of up to 93.6%, and its stability is also better than manual recognition. The designed automobile BSR recognition system eliminates the problem of low manual recognition accuracy caused by experience differences and has certain market promotion value. References | Related Articles | Metrics

Select

Finite Element Analysis and Lightweight Design of Body in White NIU Anshun 2024, 49(15): 93-96.  DOI: 10.16638/j.cnki.1671-7988.2024.015.019 Abstract ( )   PDF (1796KB) ( )   The finite element analysis of the simplified body in white of a certain vehicle and its lightweight based on HyperMesh, in order to reduce the body mass without affecting the body stiffness. After the computer aided engineering (CAE) model is built, the static stiffness and modal cloud image are calculated by setting the boundary conditions, and the dimensional optimization is carried out by the sensitivity screening plate, and the mass and stiffness changes before and after are compared. The results show that the mass is reduced by 17.35 kg, the weight reduction ratio is about 4.3%, and the change of body stiffness is within the range, and the purpose of lightweight is achieved. References | Related Articles | Metrics

Process·Materials

Select

Simulation Analysis and Design Optimization of Welding Defects of an Automoblie Injection Components LONG Quan1 , DAI Yu1 , OUYANG Bo1 , TANG Feng2,3 2024, 49(15): 97-101.  DOI: 10.16638/j.cnki.1671-7988.2024.015.020 Abstract ( )   PDF (5200KB) ( )   The motor gear cover of automobile wiper system is generally made by injection molding technology, and glass fiber is added into raw material to enhance strength of product. Taking the strength of screw hole of motor gear cover as the research object, firstly, the mold flow analysis software Moldflow is used to analyze the forming process of the original scheme, and it is found that there are weld marks on the edge of the screw hole, and the strength did not meet the design requirements combined with the torque test; then the design scheme is optimized and the screw hole is thickened by radial direction; finally, the assembly test and crushing force test are compared and verified before and after optimization. The results show that the supporting capacity is increased 100% when radial thickness is added by 2 mm, and the assembly torque is increased from 1.75 Nm to 2.1 Nm, which meet the design requirement and provide the refence for strength design of glass fiber enhanced material. References | Related Articles | Metrics

Select

Application of Fiber Reinforced Resin Composite Material in New Energy Vehicle CHEN Yunxia1 , LI Zhihu*2 2024, 49(15): 102-107.  DOI: 10.16638/j.cnki.1671-7988.2024.015.021 Abstract ( )   PDF (1657KB) ( )   Composite material is the excellent automobile lightweight material for the advantages of low density, high modulus, and high specific strength. In order to explore the material trend of new energy vehicle component, this article analyzes the application of fiber-reinforced resin composite material in domestic and foreign new energy vehicle. The study found that although carbon fiber composite material had high cost, due to their excellent performance, it is still widely used in some high-end vehicle models to enhance brand influence; Fiberglass reinforced composite material, with low cost, is ideal lightweight material and had been widely used in new energy vehicle in recent years; The application of natural fiber reinforced composite material is mainly aimed at enhancing the image of low-carbon and environmental protection; Basalt fiber reinforced composite material has not yet formed a complete industrial chain, but there is broad development space in the future. The analysis of the article provide a basis and guidance for the selection of materials for new energy vehicle component. References | Related Articles | Metrics

Select

Analysis and Optimization of Prickly Heat on Edge during Robot Spraying YAN Qiang, LI Minmin, LI Yihu, LI Jiangtao, XU Hang, LI Yongzhou 2024, 49(15): 108-112.  DOI: 10.16638/j.cnki.1671-7988.2024.015.022 Abstract ( )   PDF (1494KB) ( )   In order to solve the problem of prickly heat on edge in the process of spraying waterbased paint by robot, this paper analyzes from five aspects of man, machine, material, method and environment, and introduces the system composition, process parameters and setting basis of FANUC spraying robot. Through theoretical analysis and experimental verification, it is confirmed that the main causes of edge prickly rash this time are large flow rate, high pressure and high trajectory overlap rate of robot spraying, and by reducing flow rate and high pressure and refining the spraying trajectory, the problem of edge prickly rash has been effectively solved. After analyzing and solving the problem of edge prickly rash in the robot spraying process, the prevention and solution measures for this problem in the subsequent production process have been formulated, and it is of great significance to improve production efficiency and product quality. References | Related Articles | Metrics

Select

Research and Application of Intelligent Repair Solutions for Automotive Tightening SUN Xiaoting 2024, 49(15): 113-116.  DOI: 10.16638/j.cnki.1671-7988.2024.015.023 Abstract ( )   PDF (2206KB) ( )   The collection, management and application of data can create value in the manufacturing process of automobiles. In order to improve the tightening efficiency of the automobile, this article studies an intelligent bolt tightening repair solutions, which includes online tightening repair, tightening repair in the repair area, tightening repair of related parts, and traceability analysis of tightening repair data. The results of application practice show that this innovative solution can bring multi- dimensional benefits such as cost, quality and efficiency, realizing the networked and traceable tightening data of the entire vehicle process, and assisting enterprises in intelligent and digital transformation. References | Related Articles | Metrics

Select

Welding Workshop WBS Production Line Process Planning and Design FENG Zheng1 , ZHANG Yujia2 , CHEN Wencai3 , GAO Zhijie4 , ZHU Junhui5 , ZHANG Wangjun4 2024, 49(15): 117-123.  DOI: 10.16638/j.cnki.1671-7988.2024.015.024 Abstract ( )   PDF (1903KB) ( )   With the rapid development of the automobile industry, the welding body storage (WBS) production line plays an increasingly important role as the last fully automated, multi-model storage and transportation production line in the welding workshop. This paper takes the process planning and design of WBS production line as the research topic, and focuses on how to scientifically construct unmanned, intelligent, efficient and flexible WBS production line system in limited space. Give full play to the WBS production line's ability of efficient storage, quick transfer, accurate sorting, and bring the best economic benefits with the least investment, in order to achieve the best solution for building the WBS production line system. The high efficiency, intelligence and flexibility of WBS production line bring high quality economic benefits to automobile enterprises and modern society, and have a certain reference role for the industry. References | Related Articles | Metrics

Automobile Education

Select

A Study on the Path to Enhance the Social Service Capability of the Teacher Teaching Innovation Team for Automotive Manufacturing and Testing Technology －Taking Anhui Technical College of Mechanical and Electrical Engineering as an Example JIANG Nenghui, LI Cheng, WANG Aiguo 2024, 49(15): 124-128.  DOI: 10.16638/j.cnki.1671-7988.2024.015.025 Abstract ( )   PDF (1084KB) ( )   The effectiveness of social services is an important indicator for the construction of teacher teaching innovation teams for vocational education teachers. In order to enhance the social service capabilities of teacher teaching innovation teams, the research focuses on the social service capabilities of automotive manufacturing and testing technology teacher teaching innovation teams, with the main focus on improving the social service capabilities of teachers. Combining the development of the automotive industry and the current situation of automotive manufacturing and testing technology teacher teaching innovation teams, analyze the role of teachers' social service capabilities in building teacher teaching innovation teams. Based on school enterprise cooperation, propose a path to enhance the social service capabilities of the automotive manufacturing and testing technology teaching innovation team, further build a "community of shared destiny" for school enterprise cooperation, and create a "dual teacher" teacher teaching innovation team with strong social service capabilities. References | Related Articles | Metrics

Select

Research on the High Quality Development Model of Industry Education Integration in New Energy Vehicle Technology Major ZHU Kening 2024, 49(15): 129-133.  DOI: 10.16638/j.cnki.1671-7988.2024.015.026 Abstract ( )   PDF (1018KB) ( )   Under the background of "dual high", relying on the construction of industrial colleges, focusing on six aspects including teaching resources, teaching platforms, teaching modes, teaching teams, teaching evaluations, and teaching guarantees from the national, social, enterprise, and school levels, focusing on improving students' comprehensive abilities, researching and exploring new models of integrated development of industry and education, deepening school enterprise cooperation, and providing applied talent guarantee in the field of new energy vehicle technology for regional economic development. References | Related Articles | Metrics

Select

Exploration and Practice of Curriculum Ideology and Politics in the Construction of the First-class Course of Automotive Design YE Wei 2024, 49(15): 134-137.  DOI: 10.16638/j.cnki.1671-7988.2024.015.027 Abstract ( )   PDF (919KB) ( )   Traditional Automobile Design courses often focus on the cultivation of professional knowledge and skills, but ignore the cultivation of students' ideological and moral qualities. Therefore, in order to improve students' sense of social responsibility and professional quality, the article takes ideological and political elements as the starting point, excavates ideological and political education resources in the curriculum, designs teaching activities with ideological and political characteristics, and adopts diversified teaching methods and means to improve the effectiveness of ideological and political education in the curriculum. The results show that the implementation of curriculum ideology and politics not only improves students' ideological and political accomplishment and professional accomplishment, but also promotes the improvement of teaching quality and the innovative development of curriculum construction. References | Related Articles | Metrics

Select

Automobile Test Technology Course Reform Targeted at Engineering Development XU Chi1,2 , CHEN Yinghang1,2, DONG Xiaori1,2 2024, 49(15): 138-142.  DOI: 10.16638/j.cnki.1671-7988.2024.015.028 Abstract ( )   PDF (1303KB) ( )   Automobile Test Technology is one of the core courses in the field of vehicle engineering and serves as a crucial foundation for students who will later work in whole-vehicle testing and performance development. Addressing the challenges faced during the teaching process, such as difficulties in student comprehension, lack of experimental hardware, and content disconnect from engineering practices, this paper proposes curriculum reform ideas in response to the industry's demand for whole-vehicle performance development talent. The proposed reforms include using ideological education as a guide, knowledge integration as a standard, project development thinking as the main thread, and virtual testing as a supplement. The goal is to provide references for improving the teaching quality of the Automobile Test Technology course. References | Related Articles | Metrics

Select

The Teaching Exploration of Automobile Network and Information Technology Overhaul Based on the Job-Course-Competition-Certification Integration HUANG Zhiqiu 2024, 49(15): 143-147.  DOI: 10.16638/j.cnki.1671-7988.2024.015.029 Abstract ( )   PDF (1282KB) ( )   In order to realize the development needs of the country to cultivate high-quality skilled talents and adapt to the trend of modernization of vocational education, this paper puts forward a "three-stage" spiral progressive teaching method based on integrating job demand, curriculum, skill competition and vocational certificate, and carries out teaching through practical teaching cases and informatization. The results show that the students are proficient in the maintenance methods and skills of automobile network and information technology, and improve their practical ability and employment competitiveness. This teaching model also provides a useful reference for vocational education reform. References | Related Articles | Metrics

Standards·Regulations·Management

Select

Analysis of UN ECE R155 Certification Scheme for Vehicles QIAO Changxin1 , ZHANG Lingxiao*2 , LIU Jinliang1 2024, 49(15): 148-153.  DOI: 10.16638/j.cnki.1671-7988.2024.015.030 Abstract ( )   PDF (1250KB) ( )   In response to the network security and consumer privacy risks that arise in the development of digitalization, networking, and automation of automotive products, UN/WP.29 has officially issued the UN ECE R155 regulation, which is strict and difficult to apply for certificates. This article analyzes the requirements of R155 regulations and proposes the automotive network security requirements that enterprises need to meet in response to the certification process of R155 regulations, it is of great significance for promoting sufficient network security protection capabilities of enterprise products and meeting the overseas market access needs of enterprises. References | Related Articles | Metrics

Select

Research on Automotive Quality Traceability Data Storage Based on Graph Database LIU Wenjun1 , CHEN Chen2 2024, 49(15): 154-158.  DOI: 10.16638/j.cnki.1671-7988.2024.015.031 Abstract ( )   PDF (1255KB) ( )   The automotive industry has become a pillar industry in the current national economy,and in order to address quality issues in the production of automotive parts, the industry has widely introduced quality traceability systems in the production process. Most existing quality traceability systems are built on relational databases, while traditional databases have limitations in handling complex relational data and cannot flexibly meet the multi-level and complex requirements of quality traceability. Therefore, a storage method for automotive quality traceability data based on graph database is proposed, and graph database is selected as the data acquisition storage scheme, and the highly flexible data model is designed, including the correlation relationships between automobiles, components, processes, etc., to better meet the production quality traceability needs of automotive parts. The experimental results show that compared to traditional database systems, methods based on graph database exhibit significant advantages in query performance and data insertion efficiency. References | Related Articles | Metrics

Reviews

Select

Research on Unsafe Incidents of Aircraft Tactor Operations Based on Text Analysis DU Hongbing , LI Hongyi 2024, 49(15): 159-165.  DOI: 10.16638/j.cnki.1671-7988.2024.015.032 Abstract ( )   PDF (1867KB) ( )   In order to investigate the safety of aircraft tractors tug operations, this paper conducts text mining and analysis on 12 537 narratives and briefs involving unsafe incidents with aircraft tractors in the aviation safety reporting system (ASRS) from 1989 to 2023. By integrating the SHELL model, the paper identifies the key elements of aircraft tractors tug operations. Subsequently, the SHELJaccard coefficient matrix is used to analyze the relationships between these key elements, and measures for the prevention and control of safety in aircraft tractors tug operations are proposed. The study finds that the key elements of aircraft tug operations are as follows: hardware elements mainly consisting of pins, brakes, speed control devices, connectors, and communication equipment; software elements mainly consisting of tug checklists, airport ground guidance lines, and airport management; human elements mainly consisting of tug drivers, guides, guards, and crews; and environmental elements mainly consisting of visibility, ground conditions, and obstacles. References | Related Articles | Metrics

Select

The Common Faults and Diagnostic Methods of Three-electric System YANG Tiancheng 2024, 49(15): 166-170.  DOI: 10.16638/j.cnki.1671-7988.2024.015.033 Abstract ( )   PDF (992KB) ( )   With the increase of new energy vehicles and the rise of complaint about the three-electric system, fault diagnosis has ushered in great challenges. In order to better study this issue, it is necessary to conduct a systematic analysis of common faults and diagnostic methods in the electrical systems. The article categorically described the common faults of battery, motor and electrical control system. Then, four types of common diagnostic methods model-driven method, signal-driven method, data-driven, and expert-system method are introduced. Finally, the directions of future research are simply discussed, so as to provide reference for researchers and promote the development of this area. References | Related Articles | Metrics

Select

Analysis on the Application of Digitalization in Automobile Benchmarking YE Zongbao, PENG Yu 2024, 49(15): 171-176.  DOI: 10.16638/j.cnki.1671-7988.2024.015.034 Abstract ( )   PDF (2593KB) ( )   Competitive automobile analysis and Benchmarking is the basic work of automobile Benchmarking, and the collection of competitive automobile analysis and Benchmarking parameters in the industry relies on manual work, which is inefficient. Combined with business practice, a set of digital information collection system for automatic photography and automatic weighing is studied, and the whole chain business automation such as parameter collection, data collation, and data transmission of competitive vehicles is realized through the combination of software and hardware. The application of this method can greatly improve the efficiency of automobile benchmarking, thereby shortening the product development cycle, and achieving both efficiency and benefit. References | Related Articles | Metrics