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15 February 2025, Volume 50 Issue 3 Previous Issue   
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New Energy Vehicle
Intelligent Connected Vehicle
Design and Research
Testing and Experiment
Process·Materials
Automobile Education
Standards·Regulations·Management


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New Energy Vehicle

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Optimization of Vehicle Performance Matching and Multi-objective Simulation for Light Commercial Vehicle Range Extender Hybrid JIANG Hualiang1,2,3 , WANG Zhe1,2,3 , QIN Xiang1,2,3 , ZHANG Xue1,2,3 2025, 50(3): 1-6.  DOI: 10.16638/j.cnki.1671-7988.2025.003.001 Abstract ( )   PDF (973KB) ( )   Aiming at the matching and energy consumption optimization problem of a plug-in range extender hybrid vehicle scenario drive system for an N1 class light commercial vehicle, the driving parameters of the vehicle in different scenarios are matched, and the key parameters of the range extender, driving motor, and battery capacity that meet the battery electric driving range of 50 km are determined; a power economy simulation model for plug-in range extender hybrid vehicle is established based on MATLAB Simulink, and the simulation results meet the performance requirements of the vehicle; at the same time, a rule-based extended range hybrid control strategy is proposed, and a mathematical model of the control parameters of the extended range hybrid control strategy under electric balance is established. The control parameters are optimized through multi-objective global simulation, and the optimization results show that the fuel consumption of the feed is reduced by 3% under the world light vehicle test cycle (WLTC) condition. References | Related Articles | Metrics

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Cooperative Design Strategy of Electric Vehicle Air Conditioning System and Battery Thermal Management ZHAO Lun, XU Junbo, YANG Zhenyuan, ZHOU Huan 2025, 50(3): 7-14.  DOI: 10.16638/j.cnki.1671-7988.2025.003.002 Abstract ( )   PDF (918KB) ( )   With the global demand for reducing greenhouse gas emissions and promoting energy transformation growing increasingly urgent, the importance of electric vehicle (EV) as clean energy transportation tools is becoming more prominent. The air conditioning system and battery thermal management of electric vehicles are key technical areas that affect the vehicle's performance and endurance capabilities. This paper delves into the collaborative design strategies of electric vehicle air conditioning systems and battery thermal management, aiming to optimize energy utilization efficiency and thermal management performance through the construction of an integrated model. The research employs methods of mathematical modeling, simulation analysis, and experimental validation to comprehensively evaluate the system's performance under different operating conditions and proposes effective methods to improve the existing system design. The results show that the collaborative design strategy can not only significantly improve energy utilization efficiency and reduce energy consumption but also enhance the reliability of the system, ultimately enhancing the user's driving experience. The study also provides a new perspective for the sustainable development of electric vehicles, emphasizing the importance of considering environmental impact and energy efficiency in the design process, and lays a solid foundation for the further development of the electric vehicle industry References | Related Articles | Metrics

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Study on Calculating Method of Degumming Area of CTP Battery Pack under Vibration Condition FANG Youwei, LIANG Xinlong, ZHANG Long, XU Guoqing, LV Xixiang 2025, 50(3): 15-19.  DOI: 10.16638/j.cnki.1671-7988.2025.003.003 Abstract ( )   PDF (2301KB) ( )   The use of cell to pack (CTP) technology can effectively improve the battery energy density and extend the service life, thereby further improving the overall performance of the power battery. It is mainly uses structural adhesive or thermal conductive structural adhesive to complete the bonding and fixing between the battery group and the box to achieve long-term reliability of the battery pack. In this paper, a square lithium-iron battery is taken as the model, and the power spectrum density (PSD) of the battery vibration test in standard Safety Requirements for Power Batteries Used for Electric Vehicles (GB 38031－2020) is taken as the calculation boundary, and the modal superposition method is used to calculate whether the strength and stiffness of the battery shell structure meet the requirements. The degumming area of the CTP battery pack is disassembled by red ink method and compared with the simulation results. The results show that the agreement rate of the degumming area between the simulation and the test is more than 90%, which indicates the reliability and validity of the results. References | Related Articles | Metrics

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Research on EMI Characteristic Evaluation Method of IGBT Single Tube Based on Double Pulse Test LIU Yu, GAN Maoqing, JIANG Ming 2025, 50(3): 20-25,37.  DOI: 10.16638/j.cnki.1671-7988.2025.003.004 Abstract ( )   PDF (1382KB) ( )   With the development of vehicle electrification, power semiconductor devices are widely used in various components of electric vehicles. The power devices represented by the insulated gate bipolar transistor (IGBT) are the important electromagnetic interference (EMI) in the electric vehicle system because of their fast switching speed and high operating frequency. These disturbances can be transmitted to other power electronic devices in the form of spatial coupling or cable conduction coupling, seriously affecting the work of other components. It is necessary to evaluate the EMI characteristics of IGBT and other power devices for the design of electric vehicle drive and electronic control system. Based on this, the paper starts from the study of the switching characteristics of IGBT, deduces its current and voltage characteristics during the switching period, and then obtains its voltage and current waveform by double-pulse test. Finally, the tested data is converted to the frequency domain by Fourier transform, which can more intuitively monitor the interference emission spectrum of IGBT in operation and evaluate its EMI characteristics. References | Related Articles | Metrics

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Research on the Layout of Typical Large-power Pure Electric Tractor JIANG Weibin 2025, 50(3): 26-30.  DOI: 10.16638/j.cnki.1671-7988.2025.003.005 Abstract ( )   PDF (1180KB) ( )   The electrification of trunk transport vehicles has an urgent demand for large-power and long battery life. The development trend of battery technology drives the landing of large-power demand for trunk transportation tractors. In this paper, the typical layout scheme of the large-power pure electric tractor is studied, and the layout scheme of other key systems of the vehicle is analyzed, and the chassis layout corresponding to the two typical battery layout schemes is obtained. Finally, by comparing the stress distribution of the frame of the battery back and the bottom of the battery, a more reasonable chassis layout scheme of the battery layout is obtained. The research in this paper provides a reference for the chassis layout and frame design of high-power pure electric tractors. References | Related Articles | Metrics

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Fault Diagnosis Research on Electric Vehicle Alternating Current Slow Charging without Charging HUANG Jianxiang, CHEN Xueyuan, JIANG Qinglai 2025, 50(3): 31-37.  DOI: 10.16638/j.cnki.1671-7988.2025.003.006 Abstract ( )   PDF (1402KB) ( )   As a common fault in the maintenance work of electric vehicle, whether the alternating current slow charging fault of electric vehicle can be effectively diagnosed and quickly repaired is crucial for improving the user experience and ensuring the charging safety of electric vehicle. Focusing on the key link of the charge control guide circuit, this paper deeply analyzes the working principle of the slow charging system of electric vehicle, closely combines the actual maintenance experience, summarizes the common causes of the alternating current slow charging failure of electric vehicle, and designs a set of fault diagnosis process and maintenance steps, covering the whole process from fault location to fault elimination. It provides reference and reference for technical personnel to solve electric vehicle alternating current slow charging system fault quickly and accurately. References | Related Articles | Metrics

Intelligent Connected Vehicle

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Research on Path Planning Algorithms for Autonomous Dump Trucks in Mine Loading Areas ZENG Jiaoni, WANG Liqun, YANG Wei, TIAN Mingrui* 2025, 50(3): 38-43.  DOI: 10.16638/j.cnki.1671-7988.2025.003.007 Abstract ( )   PDF (2187KB) ( )   With the development of 5G networks and Internet of things technology, research on the application of autonomous driving technology in mining has made significant progress. However, due to the heavy load of mining dump trucks, narrow roads in the mining loading areas, sharp bends, and numerous uphill and downhill sections, the path planning for autonomous driving of mining dump trucks in mining areas faces challenges. Paper addresses the path planning problem for dump trucks in loading areas and proposes an adaptive hybrid A* path planning method suitable for autonomous mining dump trucks. This method can plan a safe path for dump trucks to avoid obstacles and travel from the starting point to the destination on narrow mining roads. It also ensures that the dump trucks maintain straight travel on narrow uphill and downhill roads, avoiding instability caused by frequent turns, thereby improving the safety of the autonomous driving system.Finally, the feasibility and superiority of the adaptive hybrid A* search algorithm were validated through MATLAB simulation experiments. References | Related Articles | Metrics

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Research on Interior Camera Monitor System and Intelligent Control System LI Xiaojun, LIU Min, WANG Zhenyu 2025, 50(3): 44-48.  DOI: 10.16638/j.cnki.1671-7988.2025.003.008 Abstract ( )   PDF (1650KB) ( )   The current intelligent level of rearview mirrors is relatively low, thus making them difficult to be used in monitor, observe, and alert of the real-time environment around the vehicle, and hardly record and store the real-time situation behind the vehicle. In the event of a rear end collision or other accidents of vehicle, it is difficult to accurately and timely determine the cause of the accident. This article expounds a interior camera monitor system (CMS) and intelligent control system with digital video recorder (DVR) recording function. The system on chip (SOC) in the control system can transmit the images captured by the interior camera, front camera, and rearview camera to the rearview mirror display screen in real time through coaxial transmission, and record at least one video file at the same time through the DVR. The control system based on interior CMS can also achieve three-way video monitoring and storage, voice prompt alarm, and network communication functions for the front, rear, and interior of the vehicle. References | Related Articles | Metrics

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Driving Style Recognition Method Based on MTL-MTF-LSTM Neural Network WANG Xinghong, LU Yan, GAO Xiong 2025, 50(3): 49-53.  DOI: 10.16638/j.cnki.1671-7988.2025.003.009 Abstract ( )   PDF (1225KB) ( )   In order to improve the accuracy of vehicle driving style recognition, the article builds a driving style recognition method based on long and short-term memory neural network combined with hybrid schematic neural network. The article dissects the relationship between drivers' driving styles and time series data by mining the time series features in driving behavior data, using the public dataset NGSIM, extracting descriptive features after screening and smoothing of the dataset, converting the high-dimensional features to low-dimensional ones by principal component analysis, and specifying the number of clusters by K-means method to be identified as three driving styles. Then the classification recognition of driving styles is carried out by multi-task learning, multi-task fusion, long short-term memory (MTL-MTF-LSTM) neural network, which combines reinforcement learning and imitation learning, after multi-task assignment of recognition pool. The results show that the model achieves 95%, 98% and 97% recognition accuracy for conservative, general and aggressive driving styles, respectively, with an overall excellent performance. References | Related Articles | Metrics

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Research on Self-Learning and Compensation Algorithms of Response Deviation of EPS to Lane Centering Control ZHAN Houshun1 , LUO Huaping1 , LIAN Ruibang2 , LI Tiantian2 , WANG Song 2025, 50(3): 54-60,79.  DOI: 10.16638/j.cnki.1671-7988.2025.003.010 Abstract ( )   PDF (1451KB) ( )   The lane centering control (LCC), one of the advanced assisted driving system (ADAS) feature, enables the vehicle to drive in the center of the lane by requesting torque or angle to the electric power steering (EPS) system. LCC has strict requirements of the EPS response, but the steering system is complex and has many influencing factors. These parameters change often. Research has found that when the control parameters of LCC are determined, changes of the response parameters of EPS will affect the performance of LCC. To reduce the impact of EPS parameter changes on LCC performance, a self-learning algorithm for EPS response deviation is proposed, and proportion, integral and differential (PID) compensation is used on the selflearning to output requests of LCC. After CarSim/Simulink simulation and actual vehicle testing, it is found that the impact of EPS response deviation on LCC performance is significantly improved, which is comparable to the acceptance results at the completion stage of development, and state the strategy is efficient. References | Related Articles | Metrics

Design and Research

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Lightweight Design and Analysis of Automotive Wheel Hubs Based on Workbench BAI Yuan, ZHANG Shuai, LIU Ronge 2025, 50(3): 61-65.  DOI: 10.16638/j.cnki.1671-7988.2025.003.011 Abstract ( )   PDF (1766KB) ( )   Wheel hub is one of the main components of a car, and its lightweight design can reduce the overall weight of the car, thereby improving its fuel economy. Therefore, based on the Workbench platform, this article optimized the topology of car wheels and reconstructed the wheel hub model according to the topology results, ultimately reducing the wheel hub weight from 7.142 82 kg to 5.789 kg. Static and modal analyses are conducted on the optimized wheel hub model under high-speed rotation, radial load, bending load, and combined working conditions. The results show that the optimized wheel hub meets the practical needs of multiple working conditions and can effectively avoid resonance, providing a theoretical basis for the lightweighting of automotive wheel hubs. References | Related Articles | Metrics

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Research on the X-direction Distance Definition Method from the Front Wheel Center Line to the Driver's Tread Point SHEN Xicui, ZHAO Weisi, ZHAO Weidong, CHU Qiang 2025, 50(3): 66-69.  DOI: 10.16638/j.cnki.1671-7988.2025.003.012 Abstract ( )   PDF (1283KB) ( )   The X-axis dimension from the front wheel center to the driver's tread point, also known as L113 dimension, is the core dimension of the entire vehicle and the foundation of its construction. Its influencing factors involve a wide range, and it needs to be reasonably defined in the conceptual design stage. L113 is generally set as a fixed feature within the same platform. The unification of L113 can achieve standardization of the layout of the front and rear modules of the front bumper, reduce module boundary design variables. The physical boundaries involved in L113 include the layout of the front cabin, the definition of the front bumper position, the definition of the three pedal position, tire selection and envelope, and the boundary of the vehicle structure. The performance involved includes overall vehicle safety performance, human-machine comfort, and ease of entry and exit. This article investigates the influence of physical boundaries and performance requirements on L113, and explores the X-direction distance definition method from the front wheel center to the driver's tread point through the decomposition of three key main cross-sections and dimension chains, for reference. References | Related Articles | Metrics

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Force Analysis and Structural Optimization of Truck Fuel Tank Based on Fluid-structure Coupling MA Minrui, XIAO Liang, DU Xiang, WANG Liaowang, LAI Yahe, LAN Yawen* 2025, 50(3): 70-74.  DOI: 10.16638/j.cnki.1671-7988.2025.003.013 Abstract ( )   PDF (2427KB) ( )   In order to solve the problem of fuel loss caused by the cracking of the partition board of the fuel tank of a certain vehicle, the paper analyzes the stress of the fuel tank under different liquid filling ratios and different working conditions by using ANSYS software, so as to find out the failure reasons of the partition board of the fuel tank and optimize and improve it. In order to reveal the damage mechanism and provide the basis and corresponding theoretical basis for the optimization of the fuel tank structure, the fluid-structure coupling mechanical analysis of the fuel tank structure is carried out under different liquid-filling ratios. According to the results of fluid-structure coupling mechanics analysis, the stress concentration exists in the pressing angle of the partition plate of the fuel tank in the calculation result of large liquid-filling ratio. The baffle structure of aluminum alloy fuel tank is improved by using this analysis method, and the baffle strength and tank stability are improved. References | Related Articles | Metrics

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Research on the Performance of Rubber Suspension Treight Vehicle Based on TruckSim YANG Yinhui, LI Shaomin, WANG Yuan, LI Zhichao 2025, 50(3): 75-79.  DOI: 10.16638/j.cnki.1671-7988.2025.003.014 Abstract ( )   PDF (2066KB) ( )   Based on the characteristics of large changes in empty and full load loads of freight vehicles, a mechanical model of rubber suspension is established in this paper. The nonlinear mechanical characteristics of rubber suspension are verified through bench tests. The stiffness characteristic data output from bench tests are input into TruckSim to establish a TruckSim virtual simulation model for a certain 8×4 freight vehicle. Finally, B-level road surface ride comfort simulation, steady-state rotation simulation, and snake shaped test simulation are completed on TruckSim. The simulation test results show that the ride comfort and stability of vehicles equipped with rubber suspension can meet the design requirements. References | Related Articles | Metrics

Testing and Experiment

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Analysis and Design Optimization of Water Inlet Problem for Hydrogen Fuel Heavy Truck Air Intake System TIAN Jingna, SU Zhaoxia, WANG Zhichao, MA Wensong 2025, 50(3): 80-85.  DOI: 10.16638/j.cnki.1671-7988.2025.003.015 Abstract ( )   PDF (3909KB) ( )   During the trial operation of a hydrogen fuel cell heavy truck, the air filter of the intake system is flooded, resulting in the insulation failure of the hydrogen fuel cell air compressor and the failure of the vehicle to start. Through the investigation of the user site, it is found that the user maintenance is not timely. The reason of water intake at the design end is analyzed, and it is found that there are some defects such as unreasonable design of water removal structure and insufficient verification of water separation performance. The traditional verification method of water separation efficiency of energy intake system is no longer applicable to hydrogen fuel vehicles. By improving the user's instructions, re-designing the water removal structure of the intake system, and improving the test conditions of the bench, the water intake problem of the user's car on the market is gradually solved, and the reference is provided for the solution of similar engineering problems. References | Related Articles | Metrics

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Friction Compensation of Steering-by-wire System Based on LuGre Model ZHAO Shuaishuai 2025, 50(3): 86-90.  DOI: 10.16638/j.cnki.1671-7988.2025.003.016 Abstract ( )   PDF (1393KB) ( )   As one of the most important functions of steer-by-wire system, the accurate execution of feedback torque represents the correct reflection of vehicle information, but the existence of friction in the system leads to the deviation of the implementation of road feeling feedback torque. Firstly, the friction existing in the steer-by-wire system is analyzed in this paper. Considering the limitations of the commonly used Coulomb friction model, LuGre is proposed for friction compensation. The method of model parameter identification is proposed, and the model parameters of steering-by-wire platform are identified through hardship-in-loop experiment, which provides reference for the next step of road feeling torque design. References | Related Articles | Metrics

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Research on Solving Abnormal Noise Based on Sound Transmission Characteristics WU Xuehui, LIU Yidi, LIANG Heping, LI Jian 2025, 50(3): 91-94.  DOI: 10.16638/j.cnki.1671-7988.2025.003.017 Abstract ( )   PDF (2077KB) ( )   In order to solve intermittent abnormal body noise when vehicles pass through rough roads or when steering, this paper studies the sound transmission characteristics and uses the start times of vibration sensor to quickly and effectively locate the source of abnormal noise, thereby solving the problem of abnormal noise. The method of using the time difference of sound transmission to quickly locate the root cause of problem in this paper provides a way and a reference to the noise, vibration, harshness (NVH) improvement of the body, especially for solving the vibration and noise problems of body that cannot be disassembled or replaced. References | Related Articles | Metrics

Process·Materials

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Discussion on the Design and Application of Automobile Painting Auxiliary Tooling PEI Pengbing, CHENG Xiaoxue, TIAN Haiyang, BI Jing, ZHAO Bing 2025, 50(3): 95-99.  DOI: 10.16638/j.cnki.1671-7988.2025.003.018 Abstract ( )   PDF (1384KB) ( )   Automobile painting auxiliary tools are essential in the process of body painting, which can assist the body to meet the requirements of the painting process and facilitate the operation of field operators. In this paper, the type, function, development quantity calculation, daily maintenance and other aspects of the body painting auxiliary tooling are elaborated in detail and comprehensively. Combined with the practical application of the painting auxiliary tooling in a new energy automobile company, the design and application case of the general application of the body painting auxiliary tooling are introduced. The research provides a design idea for the development of the new energy vehicle painting auxiliary tooling. References | Related Articles | Metrics

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The Application of Coordinate Transformation in Laser Cutting of Sheet Metal Parts WANG Dongbo, GOU Chaoyang, MIAO Jiahao, ZHANG Xiuwei 2025, 50(3): 100-102,138.  DOI: 10.16638/j.cnki.1671-7988.2025.003.019 Abstract ( )   PDF (1948KB) ( )   In three-dimensional five axis laser cutting of sheet metal parts, it is necessary to establish a machining coordinate system. Some sheet metal parts have complex features, and when the laser head returns to zero, the sheet metal part interferes with the laser head, making it difficult to establish a machining coordinate system. This article collects the coordinates of feature points corresponding to a certain angle of rotation of the laser head, and uses coordinate transformation to indirectly calculate the coordinate values corresponding to the laser head returning to zero, solving the problem of interference between the laser head and the workpiece and providing a new method for establishing the laser cutting coordinate system. References | Related Articles | Metrics

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Automation Improvement and Mechanism of Manual Welding Equipment LIANG Bo, HAO Jiang, LIU Jie, ZHANG Chengqing 2025, 50(3): 103-107.  DOI: 10.16638/j.cnki.1671-7988.2025.003.020 Abstract ( )   PDF (1466KB) ( )   Since the artificial resistance spot welding operation and equipment used in the welding production of automobile enterprises will exist for a long time, how to realize the intelligent manufacturing upgrade of the corresponding equipment and improve the automation rate is an urgent problem for most enterprises. This paper introduces a development and application scheme which is quick and simple, and can realize the upgrading of manual spot welding equipment at low cost, and improve the level of equipment automation and operation quality. In this scheme, a sensor and signal transmitter with product difference recognition are added to the fixture to realize the automatic recognition and transmission of the target product model. The installation of different types of sensors can basically cover all product differences, and the automatic identification range is wide and the identification reliability is high. By adding signal receiving and signal processor to the welding equipment, the wireless signal receiving and welding signal comparison and analysis can be realized,and then the automatic selection of welding program can be completed. Through the increase of the above devices, the production line can be rapidly upgraded and the automation level and quality level of the production line can be improved. References | Related Articles | Metrics

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Production Technology and Application of Body Welding Flexibility XU Wenkang 2025, 50(3): 108-113.  DOI: 10.16638/j.cnki.1671-7988.2025.003.021 Abstract ( )   PDF (2623KB) ( )   With the increasing number of vehicle models in the body welding production line, customization of configurations, and rapid updates and iterations of vehicle models. In order to shorten the production line renovation cycle and respond quickly to production, it is necessary to promote the flexibility of the production line. This article introduces the flexible production technology and application of body welding from the perspective of workstation workflow, starting from assembly, positioning, inspection, processing, transportation, quality inspection and other links. It provides some reference for the comprehensive improvement of the production quality of the body welding production line. References | Related Articles | Metrics

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Practice and Research on Development and Improvement of Automobile Appearance Refinement LONG Qiao, ZHENG Yaokai, JING Huabin, ZHANG Jian 2025, 50(3): 114-120.  DOI: 10.16638/j.cnki.1671-7988.2025.003.022 Abstract ( )   PDF (3670KB) ( )   In today's highly competitive automotive market, consumers have higher and higher requirements for static refinement and detailed workmanship of automotive products. Through several projects, the paper summarizes the development process of vehicle refinement, puts forward six evaluation dimensions of refinement and its application stage, and focuses on the refinement design improvement, color, material and texture (CMF) & touch improvement, manufacturing quality improvement and other methods are introduced in detail. The content of this research can provide reference for engineering technicians engaged in automobile perception evaluation and improvement. References | Related Articles | Metrics

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Application and Research of Glass Gluing in the GA Shop YIN Liliang, LI Shixian, WEI Dongguang, YANG Hongqi, WEN Caifeng 2025, 50(3): 121-126.  DOI: 10.16638/j.cnki.1671-7988.2025.003.023 Abstract ( )   PDF (2917KB) ( )   As the importance of glass gluing processes becomes increasingly prominent, the glass gluing processes has been studied and discussed theoretically. The article begins by introducing traditional and modern different gluing methods, comparatively analyzing their respective advantages and disadvantages. Secondly, it introduces and analyzes the characteristics of various common materials used for glass gluing. Following this, it conducts in-depth discussions and analyses from the perspectives of vehicle safety, sealing, appearance quality, and ride comfort. Finally, aiming at the current issues in the glass gluing process in the final assembly workshop, such as low gluing uniformity, unstable bonding strength, and insufficient weather resistance, the article proposes improvement methods such as optimizing the gluing process, improving gluing materials, and strengthening quality control. The analysis concludes that by comprehensively considering the precision requirements, production demands, material characteristics, and application effects of the glass gluing process, selecting the appropriate glass gluing method can enhance vehicle safety and sealing, weather resistance and aging resistance, as well as appearance quality and ride comfort. It provides theoretical references and practical guidance for the glass gluing work in the final assembly workshop. References | Related Articles | Metrics

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Research on the Method of Low-cost Lean Body Reforming WANG Ying 2025, 50(3): 127-132.  DOI: 10.16638/j.cnki.1671-7988.2025.003.024 Abstract ( )   PDF (2227KB) ( )   Using the existing models to complete the extended range electric car body reform can not only save development costs, but also speed up the upgrading of new products. Based on the body of an extended range electric vehicle of the company, the paper introduces the construction of the body restructuring platform, and explains the size adjustment and restructuring methods of the body lean restructuring, including cutting position selection, marking, fixing and translation before cutting, wheelbase extension splicing process, body widening splicing process, body heightening tooling production, and body heightening splicing process. The characteristics of the method are described in detail. The accuracy error values of the vehicle body are all less than 2 mm, which verifies the effectiveness of the method. This method ensures the realization of the body structure of the new model, controls the cost of restructuring, shorts the development cycle, and provides a new idea for the subsequent restructuring scheme. References | Related Articles | Metrics

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Process Application of Two-component Polyurethane Foam Materials in Automobile Body CHENG Xiaoxue, ZHANG Yalei* , TIAN Haiyang, LIU Ran, BI Jing, LONG Daiyong 2025, 50(3): 133-138.  DOI: 10.16638/j.cnki.1671-7988.2025.003.025 Abstract ( )   PDF (2326KB) ( )   This paper focuses on the application of cavity barrier technology in improving noise, vibration and harshness (NVH) performance, and compares the performance and application scenarios of prefabricated foam modules and two-component polyurethane foams. Through a detailed discussion of the process debugging, mixing ratio, pressure, temperature control and injection weight of the two-component polyurethane foam, the optimization and application of the material in practical production are demonstrated. The two-component polyurethane foam can significantly reduce the interior noise and improve the NVH performance under both acceleration and constant speed. Finally, the paper summarizes the advantages of cavity foaming process compared with traditional methods in many aspects, compares the advantages of cavity foaming compared with prefabricated foaming modules in several aspects, and looks forward to its wide application prospects in the automotive industry. References | Related Articles | Metrics

Automobile Education

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Undergraduate Practical Teaching of Promoting the Integration of Fitter Technology and Vehicle Manufacturing Technology ZHENG Yongjie, LIU Chundong, YANG Yanan 2025, 50(3): 139-144.  DOI: 10.16638/j.cnki.1671-7988.2025.003.026 Abstract ( )   PDF (1804KB) ( )   With the advent of the new era of engineering, local colleges and universities need to update traditional teaching concepts and models to cultivate modern engineers with innovative thinking and practical abilities. Based on the engineering maker education concept, this paper proposes a "cross-integration, five-dynamic coordination" talent cultivation strategy for the internship curriculum. Taking the small car model as the teaching carrier, it closely integrates the fitter technology with vehicle manufacturing technology courses, designing a "five-dynamic" teaching process. It integrates a "four-in-one" curriculum system of ideological and political education to establish a dynamic comprehensive engineering training practice talent cultivation model. Practice has proved that this teaching model not only meets the needs of talent cultivation under the background of the new engineering discipline but also reflects the spirit of the engineering maker teaching reform of "three crosses, three integrations, and six practices". It has important implications for the teaching reform of local colleges and universities under the background of the new engineering discipline. References | Related Articles | Metrics

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The Application of the BOPPPS Effective Teaching Model in the Toyota TEAM-GP Course LIU Bei 2025, 50(3): 145-149.  DOI: 10.16638/j.cnki.1671-7988.2025.003.027 Abstract ( )   PDF (1117KB) ( )   This study mainly discusses the application and practice effect of BOPPPS effective teaching model in Toyota TEAM-GP course. Firstly, BOPPPS model and Toyota TEAM-GP course are analyzed, and then the teaching design of TEAM-GP course is carried out based on BOPPPS effective teaching model. Finally, the rationality of BOPPPS effective teaching model in Toyota TEAM-GP course is verified through practice. This paper adopts the experimental research method to comprehensively evaluate the application effect of the model in the actual teaching process, and the results show that the effective teaching model of BOPPPS can significantly improve the course participation, learning motivation and knowledge mastery. Based on the experimental results, a series of suggestions on how to effectively use the BOPPPS teaching model are put forward. References | Related Articles | Metrics

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Exploration on Teaching Reform of Automotive Design Course Based on "Three Stages and Five Processes" FANG Yujuan 2025, 50(3): 150-155.  DOI: 10.16638/j.cnki.1671-7988.2025.003.028 Abstract ( )   PDF (1547KB) ( )   Based on the outcomes-based education (OBE) concept, this article explores the teaching reform of Automotive Design course with "three stages and five processes". With the ability demand as the orientation, the teaching content is integrated into the curriculum ideological and political education, and the three teaching stages of "pre-class, in class and after class" are designed. Pre-class guidance, teachers assign pre-class learning tasks based on engineering cases and use online learning platforms to track learning progress, laying a solid foundation for students' learning; study in class, carry out the five processes teaching of "guidance, analysis, practice, exhibition and summarization",complete the design content of engineering cases, and promote students' understanding and application of knowledge; expand learning after class, summarize what has been learned, and enhance the knowledge learned through reading materials and completing expansion tasks. At the same time, combining artificial intelligence generated content (AIGC) to enrich teaching resources, expanding the ways for teachers and students to teach and learn, and achieving the improvement of teaching quality and efficiency. Build a diversified curriculum assessment system, focusing on the assessment of students' daily output. Through reform, the cultivation of students' automotive engineering application abilities has been promoted, laying the foundation for cultivating high-quality applied talents that can adapt to the development of the automotive industry. References | Related Articles | Metrics

Standards·Regulations·Management

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Research on the Overall Planning of the Automotive Smart Factory XU Wenqi, FAN Ruiqiang, YANG Taoli, SONG Yingde 2025, 50(3): 156-160.  DOI: 10.16638/j.cnki.1671-7988.2025.003.029 Abstract ( )   PDF (1254KB) ( )   With the intensification of competition in the automotive industry, in order to reduce production costs, improve production efficiency, reduce energy consumption, and improve product competitiveness, the construction of smart factories is being widely promoted in the automotive industry. In order to solve the problems of unsystematic and non-standard planning and design of automotive intelligent factories, this paper refines and elaborates the top-level design and planning methods of passenger car intelligent factories in combination with the actual production, including the construction process, basic functions, overall design requirements, design models, etc., and focuses on the key points of automation design, information design, digital design and network design of intelligent factories in the automotive industry. In order to promote the digital, networked and intelligent transformation and upgrading of the automobile manufacturing industry, provide feasible solutions for better service intelligent products, and provide systematic theoretical guidance for the overall planning of smart factories. References | Related Articles | Metrics

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Research on Process Change Management Methods in the Vehicle Development Stage SONG Yingde, XU Wenqi, FAN Ruiqiang, YANG Taoli, CHEN Cheng 2025, 50(3): 161-164.  DOI: 10.16638/j.cnki.1671-7988.2025.003.030 Abstract ( )   PDF (1061KB) ( )   At present, in the stage of automobile product development, a large number of process changes are involved, and the current change process regardless of the size of the change, the unified way of first evaluation, then approval, and then implementation, the process is relatively simple, and the approval is cumbersome, which is not only inefficient, but also causes a large amount of waste of resources, and seriously affects the work efficiency and product quality. Therefore, this paper refines and summarizes the process change process of the existing car companies into five stages: change requirement, change application, change review, change verification, and change implementation, and proposes a process change control optimization strategy suitable for the automobile development stage, which can improve work efficiency and ensure product quality at the same time, and provide a theoretical basis for process change in the vehicle development stage. References | Related Articles | Metrics