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30 June 2025, Volume 50 Issue 12 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
Reviews


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New Energy Vehicle

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Research on Comprehensive Range Estimation of Pure Electric Vehicles Based on Simulink Model DONG Delei1 , LU Bin1 , CHENG Feng1 , ZHANG Ning1 , YANG Wenbo1 , MA Longfeng1 , PAN Deng2 , LI Yingbo2 2025, 50(12): 1-5.  DOI: 10.16638/j.cnki.1671-7988.2025.012.001 Abstract ( )   PDF (824KB) ( )   In order to accurately estimate the comprehensive range of pure electric vehicles during the design and development process, especially in the early stages of design and development, and guide the research and design of comprehensive range of pure electric vehicles. This article proposes a vehicle environment simulation model based on Simulink using real vehicle parameters to estimate the comprehensive range of pure electric vehicles under China light vehicle test cycle (CLTC) conditions. The results indicate that the simulation model operates within a complete driving cycle. The actual vehicle speed height follows the target vehicle speed, which can meet the real-time simulation of the vehicle following the CLTC driving conditions. The comprehensive range calculated by the simulation model has a smaller error compared to the actual range of the vehicle. Can accurately reflect the actual comprehensive range of pure electric vehicles. Compared with the traditional method that requires actual vehicle testing for comprehensive endurance mileage. It can provide reliable data basis for the design and development of pure electric vehicles, and guide the research and development of comprehensive range of pure electric vehicles in reverse, greatly reducing research and development costs. References | Related Articles | Metrics

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Design of Distributed Drive System for Electric Vehicles Based on Central Dual Motor Configuration QIAN Chao 2025, 50(12): 6-12.  DOI: 10.16638/j.cnki.1671-7988.2025.012.002 Abstract ( )   PDF (1870KB) ( )   With the rapid development of electric vehicles, distributed drive as an advanced power system has been applied in the market. Distributed drive has the advantages of compact structure, independent and controllable torque of each wheel, fast response, strong power, flexible forward and reverse rotation, and high driving efficiency. According to the arrangement of wheels, motors, and reducers, it can be divided into central dual motor configuration, wheel side motor configuration, and hub motor configuration. This article summarizes and compares the structural characteristics, advantages and disadvantages, and application scenarios of the three configurations mentioned above, and conducts research on the structural design, working mode, and control method of a distributed drive system with a central dual motor configuration. Finally, the electric drive system is verified in the vehicle, and the results show that the design of the electric drive system meets the project requirements. References | Related Articles | Metrics

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Analysis of Influencing Factors the Sales of New Energy Vehicle ZHANG Yongqin 2025, 50(12): 13-16,23.  DOI: 10.16638/j.cnki.1671-7988.2025.012.003 Abstract ( )   PDF (669KB) ( )   The development of new energy vehicle is inseparable from many factors such as policy stimulus and technological innovation. This article first expounds the stimulus-organism-response (S-O-R) theory, and then analyzes three factors that affect the sales of domestic new energy vehicle, namely policy incentive, infrastructure construction and driving and riding experience. Finally, the sales acceleration improvement strategies of diversified expansion of communication channels, innovative improvement of application technologies, and perfect after-sales service system are proposed, providing valuable references for the development of the new energy vehicle industry. References | Related Articles | Metrics

Intelligent Connected Vehicle

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Research on ROS-Based Autonomous Navigation Algorithms for Outdoor Unmanned Vehicles WANG Huadong 2025, 50(12): 17-23.  DOI: 10.16638/j.cnki.1671-7988.2025.012.004 Abstract ( )   PDF (2304KB) ( )   Aiming at the problem that robot operating system (ROS)-based unmanned vehicles in the university student intelligent vehicle competition are prone to environmental interference and fail to achieve autonomous navigation, this paper proposes a lidar-based autonomous navigation algorithm for traffic cone detection and active avoidance. First, the DBSCAN clustering method is employed to process point cloud data within regions of interest, enabling precise identification of traffic cones' spatial coordinates. Subsequently, the Delaunay triangulation algorithm is applied to the clustered cone center points to establish topological relationships, followed by path smoothing using cubic spline interpolation combined with weighted averaging of current and historical data points. Finally, the planned trajectory is transmitted via ROS topic messages to the vehicle's low-level control module for autonomous tracking. Experimental validation conducted in outdoor simulated competition environments demonstrates that the proposed navigation algorithm meets competition requirements, effectively preventing track deviation caused by external interference. This work provides a valuable reference for designing autonomous navigation systems for ROS-based unmanned vehicles in university student intelligent vehicle competitions. References | Related Articles | Metrics

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Backdoor Attack on Deep Reinforcement Learning Automated Parking Systems HUANG Qiusheng 2025, 50(12): 24-29.  DOI: 10.16638/j.cnki.1671-7988.2025.012.005 Abstract ( )   PDF (2256KB) ( )   In recent years, backdoor attacks on deep reinforcement learning have attracted widespread attention. Among the studies that have been published so far, no universal and interpretable backdoor attack framework has been proposed. To solve this problem, the article proposes a novel backdoor attack technique, which is called edge attack. A backdoor agent is trained through two stages. Especially during the training process, when the environmental observation vector meets the set conditions, triggers are added to the environment and a specially designed reward function is used. The article evaluates the effectiveness of the proposed method on four of the most advanced deep reinforcement learning algorithms. The experimental results show that when the backdoor is hidden, the success rate of the backdoor agent in handling the automatic parking task reaches 93%. However, once the backdoor is activated, the attack success rate reaches 94.3%, while the success rate of the automatic parking task decreases to 5.7%. References | Related Articles | Metrics

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Research on Trajectory Prediction of Sideside Vehicle under the Condition of Instability of Front Vehicle CHENG Xiaolong, ZHANG Pengju, YANG Xiao, LIU Xinyong 2025, 50(12): 30-38，56.  DOI: 10.16638/j.cnki.1671-7988.2025.012.006 Abstract ( )   PDF (1268KB) ( )   In order to solve the problem of emergency collision avoidance of autonomous vehicles when the front vehicle is unstable and sliding under high-speed conditions, a research method for the state recognition of the front side-skidd vehicle and the trajectory prediction of the front side-skidd vehicle is proposed. By extracting the key features of the vehicle in front of the vehicle in danger of sliding to build a skidding recognition model of the vehicle in front, a skidding recognition strategy of the vehicle in front is designed based on the extracted skidding feature indexes to judge the skidding state of the vehicle in front. The state quantity of the sliding vehicle in front is selected, and the constant rotation rate and acceleration model is established to predict the trajectory of the sliding vehicle in front in a short time. Considering the simplified assumptions of the model and the noise in the process of sensor perception information, the unscented Kalman filter is used to deal with the uncertainty in the trajectory prediction process, and the possible position and covariance of the front sideslipping vehicle are calculated, and the possible future area of the front sideslipping vehicle is estimated under the condition of probability of 0.9. Through the established CarSim and Simulink co-simulation platform, the effectiveness of the front vehicle skidding state recognition strategy and the accuracy of the trajectory prediction of the sliding vehicle are verified under the condition of high speed and low attachment. References | Related Articles | Metrics

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Research on Subjective Evaluation of Longitudinal Driving Assistance Based on the Closed Field Testing QU Ruifei, BO Tao 2025, 50(12): 39-44.  DOI: 10.16638/j.cnki.1671-7988.2025.012.007 Abstract ( )   PDF (1258KB) ( )   With the advent of the intelligent, connected, and electrified automobiles, intelligent connected vehicles have entered millions of households from experimental or research prototype vehicles. The longitudinal driving assistance function plays an important role in reducing the burden on drivers and improving driving safety and comfort. The objective testing and evaluation methods are mainly used for evaluating longitudinal driving assistance functions. Objective evaluation can effectively repeat testing and compare, but some indicators are too professional to be popularized to ordinary users. At the same time, they lack subjective experience and cannot effectively solve users' core demands. Thus objective evaluation can not evaluate the relevant function comprehensively. Therefore, this article proposes a longitudinal driving assistance subjective evaluation method based on closed field testing, combining existing subjective evaluation methods for vehicles and testing scenarios. This method is applied to real vehicle evaluation examples. This article also provides a reference method for the subjective evaluation of intelligent driving related functions. References | Related Articles | Metrics

Design and Research

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Optimal Design of Bus Skeleton Structure Based on Frontal Collision JIANG Xingyang1 , WU Shengjun2 2025, 50(12): 45-49.  DOI: 10.16638/j.cnki.1671-7988.2025.012.008 Abstract ( )   PDF (1542KB) ( )   Taking a certain type of bus as the research object, the frontal collision simulation analysis of the bus is carried out using HyperWorks and LS-DYNA software. Combined with the analysis of key data such as the body deformation of the bus, the door deformation, the driver's living space, the center acceleration of the floor of the driver's seat and the centroid acceleration, the crashability of the bus is evaluated. Based on the test conclusion, the cross-section of the longitudinal beam of the main energy-absorbing beam of the bus is improved, and a collision simulation study is conducted on the improved bus. The simulation results show that the improved bus structure effectively enhances the crashworthiness performance and verifies the feasibility of the improvement scheme. References | Related Articles | Metrics

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Multi-Step Stamping Forming CAD/CAE Collaborative Simulation for Vehicle Body Structural Components HU Liyong1 , WANG Li1,2, HU Tangfei1 , YANG Yihao1 2025, 50(12): 50-56.  DOI: 10.16638/j.cnki.1671-7988.2025.012.009 Abstract ( )   PDF (3967KB) ( )   Aiming at the characteristics of complex body beam components widely used in multi-step stamping processing but with high technical implementation difficulty, this paper takes typical complex body structural components as the research object, systematically analyzes the basic processes of multi-step stamping forming of the components, and clarifies the key difficulties and technical points in the forming process. On this basis, an innovative 12-process nesting diagram for the components is designed, and comprehensive process analysis is carried out around this nesting diagram. By constructing a full-process finite element model, the simulation mathema-tical model of the incremental loading finite element method is deeply expounded. Through precise calculation, the full-process finite element simulation analysis results meeting engineering requirements are finally obtained. The effectiveness and rationality of the CAD/CAE simulation scheme are comprehensively verified through actual stamping tests and product quality inspections. This study provides a set of feasible nesting process design and full-process finite element simulation analysis methods for the progressive die development process of body structural components. It not only deepens the research dimension of component formability but also provides important theoretical and practical guidance for the manufacturing process optimization and quality control of complex automotive beam components. References | Related Articles | Metrics

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Simulation Study on Pneumatic Noise in Automotive Pipe Systems YU Kexin, ZHANG Zhenhua, ZHAO Huijun 2025, 50(12): 57-61.  DOI: 10.16638/j.cnki.1671-7988.2025.012.010 Abstract ( )   PDF (1402KB) ( )   Automobile pipeline is one of the important sources of vehicle noise pollution. Although it is difficult to achieve complete silence during the operation of huge automobile pipeline system, if the process structure is optimized, abnormal noise can be effectively prevented and driving experience can be improved. This article is based on the basic principles of fluid mechanics, the law of conservation of energy, and other fundamental physics equations. The computational fluid dynamics (CFD) simulation software STAR CCM+ is used for finite element solution, and the noise analysis considers the Curle acoustic analogy model and Proudman acoustic analogy model. Numerical simulations are conducted on the flow field and sound field inside the pipe under the influence of different pipe connection methods. The analysis shows that connecting aluminum pipes and rubber pipes by attachment can easily make the pipe structure rough, resulting in uneven flow inside the pipe，and frequent fluctuations in velocity and pressure. On the contrary, the flow field inside the pipe connected by steel sleeves is stable and the number and amplitude of pressure changes are small. In addition, the peak noise power and decibels in the connection area of the steel sleeve connected pipeline are lower than those of the pipeline connected by the attachment method, which means that the possibility of noise pollution in the pipeline connected by the steel sleeve connection method is smaller. This article provides a reference for the simulation method of pipeline aerodynamic noise and the improvement of noise comfort caused by fluid aerodynamics during driving. References | Related Articles | Metrics

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Research on Vehicle Vertical Stability Control Based on Fuzzy PID ZHU Jihong, FANG Taisong, WU Sheng, SHA Daliang, WANG Yiming 2025, 50(12): 62-68.  DOI: 10.16638/j.cnki.1671-7988.2025.012.011 Abstract ( )   PDF (2322KB) ( )   Drivers and passengers have higher and higher requirements for the ride comfort of vehicles, and suspension is an important component affecting the ride comfort, so the ride comfort of vehicles can be improved by improving the performance of suspension. This paper first performs Fourier transform on the international standard pavement frequency-domain model and combines the filtering of white noise to generate the pavement frequency-domain model, and the road excitation time domain-model of the four wheels of vehicle is established according to the spatial correlation of the left and right wheels and the hysteresis of the front and rear wheels in the time-domain. Then, a vehicle seven-degree-of-freedom dynamic model for ride comfort analysis is established based on Simulink, and the variation amplitude of the body acceleration is determined by time-domain simulation, and then the universe of discourse of the fuzzy controller is determined. Finally, according to the input of the fuzzy controller and the determination of fuzzy control rules, combined with proportional-integral-derivative (PID) control to build the controller. By comparing the body acceleration time-domain curves of active suspension and passive suspension, it is found that the fuzzy PID control has a better control effect in improving the ride comfort of the vehicle, which has an important reference value for in-depth study of suspension performance optimization. References | Related Articles | Metrics

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Research on the Application of Adaptive Pneumatic Flexible Gripper for Automobile Doors LI Jinzhi, GE Chenyu, ZHANG Fanghao, LI Mora 2025, 50(12): 69-73.  DOI: 10.16638/j.cnki.1671-7988.2025.012.012 Abstract ( )   PDF (1754KB) ( )   At present, the automotive door production line often achieves the grasping and handling of doors of different vehicle models by changing different grippers. The flexibility and adaptability of the grippers are poor, and the grasping efficiency is relatively low. The article designs an adaptive pneumatic flexible gripper. A three-dimensional model is designed using SolidWorks, and the gripper material is determined through strength verification. Meanwhile, based on the KR360R2830 robotic arm, a door grasping robot platform is built, and finally the grasping posture and movement of the robotic arm gripper are determined. References | Related Articles | Metrics

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Design Methodology for Automotive Dashboard System Architecture Based on MBSE MA Xianglei1 , LIANG Jun1 , ZHANG Hengchun2* , QIU Xinghui2 , CHEN Jiashuai2 2025, 50(12): 74-83.  DOI: 10.16638/j.cnki.1671-7988.2025.012.013 Abstract ( )   PDF (7668KB) ( )   To address the problems of fragmented requirement management and interdisciplinary collaboration barriers in traditional automotive instrumentation panel (IP) system design, this paper proposes an innovative design method of model-based systems engineering (MBSE) based on systems modeling language (SysML). By constructing a four-layer progressive model architecture spanning "requirements－functions－logic－physical" and integrating the MagicGrid methodology, the IP system achieves closed-loop requirement traceability and verification throughout the entire lifecycle. The paper first elaborates the fundamental concepts of SysML, then establishes a multiphase MBSE design process encompassing requirement elicitation, functional decomposition, logical architecture mapping, and physical implementation based on the development project of IP system for a mass production vehicle. Results demonstrate that compared to traditional design methods, the proposed approach significantly enhances requirement management normalization, improves cross-domain collaboration consistency, and effectively reduces iterative development costs. References | Related Articles | Metrics

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Research on General Calibration Data of Automotive Bluetooth Key WU Deshi, LIU Xiaojie* 2025, 50(12): 84-89.  DOI: 10.16638/j.cnki.1671-7988.2025.012.014 Abstract ( )   PDF (2974KB) ( )   To address the issue of poor positioning accuracy of the existing general calibration data in the multi-parameter bluetooth key system, an improvement is made to the positioning and calibration scheme and a calculation method for general calibration data of automotive bluetooth keys based on multi-parameter optimization fusion is proposed, which optimizes the flexibility of the calibration process, improves the unlocking and locking performance of the general calibration data in the bluetooth key system and enhances the stability of the unlocking and locking distances of uncalibrated models. The experimental results show that based on the multi-parameter optimization fusion method, the standard deviation of the left unlocking distance decreases from 3.78 m to 2.80 m, the average unlocking distances in the front and rear directions are increased by 63% and 19% respectively, the average locking distances in the three directions are reduced by 28%, 10% and 21% respectively, and to varying degrees, the phenomena of unlocking delay and long-distance unlocking and locking are resolved, effectively enhancing the user experience of uncalibrated models References | Related Articles | Metrics

Testing and Experiment

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Dynamics Analysis of Sliding Vehicle Collision in Mine Tunnel ZHANG Yongren, YANG Liang, CAO Xiaowei, XIE Zhiguo, LI Kuan 2025, 50(12): 90-95.  DOI: 10.16638/j.cnki.1671-7988.2025.012.015 Abstract ( )   PDF (1418KB) ( )   The dynamics in the forward collision of a sliding vehicle are analyzed to explain the necessity of installing protective devices in mine tunnel in this paper. The acceleration of the sliding vehicle and the speed before the collision are deduced through the force analysis of the sliding vehicle in the mine tunnel using Newtonian mechanics. Both unprotected and protected vehicledriver collision models are developed to simplify the collision constraint relationship among vehicle, driver and wall and construct the vibration system between vehicle and hit target. The two collision models are simulated by MATLAB/Simulink under the conditions of mine tunnel inclination of 6°, vehicle weight of 2 600 kg, driver weight of 70 kg and sliding distance of 50, 100, 150 m and 200 m. The results show that the use of protective devices can reduce the maximum acceleration of the vehicle and the driver by 25.5% and 12.0%, respectively, compared with no protective device, and can play a protective role in the sliding distance of the vehicle within 100 m. References | Related Articles | Metrics

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Research on the Consistency of Charging Tests Between Liquid-Cooled Electric Vehicle and Bench DONG Yinglei, YANG Jiayi, LU Wenning, ZHOU Ping 2025, 50(12): 96-100,125.  DOI: 10.16638/j.cnki.1671-7988.2025.012.016 Abstract ( )   PDF (2888KB) ( )   In view of the discrepancy between the charging test results of existing power battery system test benches and the vehicle charging test data, the bench test results are difficult to be directly applied to the vehicle development process. To effectively address the above issue, this paper proposes a test scheme. Based on the composition architecture and control strategy of the vehicle thermal management system, AMESim software is used for simulation calculations to obtain the temperature data of the coolant after flowing through the vehicle thermal management system under different temperature conditions. Subsequently, according to the simulation results, a water chiller is used to output coolant at specific temperatures, and relevant data are verified through comparisons between vehicle tests and bench tests. The results show that under the test conditions of 40 ℃ and -20 ℃, the difference in total charging completion time between the two is less than 1%; the average absolute errors in temperature on the time axis are 0.717 and 0.530, respectively. These results indicate that through the design of the test scheme, the bench test and vehicle test results exhibit high consistency, can meet actual engineering requirements, and are of great significance for improving the development efficiency of vehicle projects. References | Related Articles | Metrics

Process·Materials

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Study on Electrochemical Corrosion Behavior of Steel-Aluminum Jointing Parts for Vehicle Body WANG Ying1,2 , ZHANG Jin1,2, LI Shengliang1,2, HUANG Hao1,2 2025, 50(12): 101-105.  DOI: 10.16638/j.cnki.1671-7988.2025.012.017 Abstract ( )   PDF (2518KB) ( )   The current research conclusions of electrochemical corrosion of automobile steelaluminum body are inconsistent with the corrosion phenomenon of steel-aluminum jointing parts of concrete vehicle body. The article studies the electrochemical corrosion behavior of simulated specimens of steel-aluminum jointing parts in accelerated corrosion testing based on the concrete vehicle body. Research had shown, in the neutral salt spray test environment, the anticorrosive performance of aluminum alloy plates is low, the anticorrosive performance of galvanized aluminum-magnesium steel plates is better, and the anticorrosive performance of electrophoretic steel plates is excellent. The corrosion resistance of stainless steel pop rivets is well in jointing parts, while zinc plating and Dacromet coating provided effective corrosion protection for fasteners. The focal point to anti-corrosion of steel-aluminum joingting parts is to improve the corrosion resistance of aluminum alloy plates. The article provides reference for the improvement of anti-corrosion design of steel-aluminum jointing parts for vehicle body. References | Related Articles | Metrics

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Simulation Analysis of Glass Fiber/Degradable Epoxy Resin Composite Materials on the front Face Shields of Commercial Vehicles JIN Quanjun, LV Lingfang, LIN Zengyong, CHENG Yu, PANG Di, ZHAO Jinpeng, FENG Zhaoqiuxia, LIANG Yandong 2025, 50(12): 106-110.  DOI: 10.16638/j.cnki.1671-7988.2025.012.018 Abstract ( )   PDF (1770KB) ( )   Based on the physical and mechanical performance characteristics of materials, the modal, stiffness and strength performance effects of glass fiber/degradable epoxy resin composites and traditional sheet molding compound (SMC) on the front face mask of automobiles are comparatively analyzed and studied. It is found that in terms of product performance, the front mask assembly made of glass fiber/degradable epoxy resin composite material with a density of 1.558 g/cm 3 could achieve a weight reduction of more than 21% compared with the traditional SMC. Although the stiffness of the front mask made of degradable epoxy resin composite material is slightly lower than that of the traditional SMC, the modal frequency and structural strength of the product are both superior to those of the traditional SMC material, and it has passed the bench performance test. The product meets the design requirements. References | Related Articles | Metrics

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Research on the Gravity Sagging Problem of the Front Hood Assembly of a Vehicle ZHOU Han 2025, 50(12): 111-114.  DOI: 10.16638/j.cnki.1671-7988.2025.012.019 Abstract ( )   PDF (2530KB) ( )   Addressing the gravity sagging problem of front hood assembly in the trial production phase, this paper aims to enhance structural rigidity and improve dimensional quality through optimized design. Leveraging CAE simulation technology and project experience,this paper systematically investigates the root causes of the problem. Three improvement schemes are proposed and comparatively evaluated in terms of cost, implementation timeline, and effectiveness, ultimately identifying an optimal solution that combines cost efficiency with significant performance enhancement. This research not only resolves the sagging problem of front hood assembly but also provides an economical and efficient solution idea for the optimal design of similar gravity sagging defects in automotive manufacturing. References | Related Articles | Metrics

Automobile Education

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Discuss on the Design and Application of Ideological and Political Education Elements in the Graduate Students Course of Vehicle System Dynamics ZHANG Zhiming, ZHAO Zhiguo* , TANG Chen, ZHAO Xin, ZHEN Yujun 2025, 50(12): 115-119.  DOI: 10.16638/j.cnki.1671-7988.2025.012.020 Abstract ( )   PDF (1420KB) ( )   Vehicle System Dynamics course, as a core course for graduate students majoring in vehicle engineering, has several problems such as a lot of formula derivation and theoretical knowledge points, limited course ideological and political elements materials, and difficulty in enhancing students' interest compared to the ideological and political elements in undergraduate courses. Starting from the knowledge points of the course, this paper conducts the design of ideological and political elements in the course and explores the connotations of national strategies, technological implementation and thinking methods contained in the knowledge points of the course.The section of Two Degrees of Freedom Model for Automotive Stability is presented as an example, analyzes the perspectives and methods of exploring ideological and political elements, and three ideological and political elements are designed:"Inspection of FAW Technology Innovation and Independent Brand Construction Achievements Exhibition", "Scientific Spirit of China's Automotive Stability Model", and "Materialist Dialectical Thinking Method for Stability". The teaching practice and teaching reflection are carried out, which promote the quality of graduate courses teaching, enhance students' national strategic awareness, establish technological innovation aspirations, and cultivate dialectical materialist thinking. References | Related Articles | Metrics

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Research on the Teaching of New Energy Vehicle Technology under the Concept of STEAM GAN Huafu 2025, 50(12): 120-125.  DOI: 0.16638/j.cnki.1671-7988.2025.012.021 Abstract ( )   PDF (1185KB) ( )   With the continuous development of the automobile industry and the transformation and upgrading of the industry, new energy vehicles have become a hot topic in the society, and the development of new energy vehicle technology courses in higher vocational colleges and universities is an important initiative to supplement China's new energy automobile professionals, and to cultivate higher level technical talents demanded by enterprises. By analyzing the current situation of the new energy automobile technology course, as well as analyzing the depth of the core course content, we emphasize project-based learning (PBL) on basis of STEAM theory, combined with the advantages of industry-teaching integration in vocational colleges and universities. Through the comparison of practical teaching, it is found that the teaching effect of this mode in course of New nergy Vehicle Technology is significantly improved, which enhances the students' learning interest and ability, and promotes the students' in-depth understanding and application of new energy vehicle technology References | Related Articles | Metrics

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Research and Practice on Practical Teaching Mode Based on Virtual Simulation Technology－Taking the Vehicle Comprehensive Testing of Intelligent Connected Course as an Example ZUO Maoliang, ZHANG Ruibin, AN Jingyu ( , Chengdu 61011 2025, 50(12): 126-132,154.  DOI: 10.16638/j.cnki.1671-7988.2025.012.022 Abstract ( )   PDF (2671KB) ( )   Building virtual simulation training bases and implementing virtual simulation practical teaching have become the key contents for the high-quality development in higher vocational colleges during the process of achieving the goal of the teaching reform integrating theory with practice, along with the rapid development of digital technologies such as the Internet, artificial intelligence and virtual reality. This article takes the Vehicle Comprehensive Testing of Intelligent Connected course as the research object. In light of the main issues persisting in the practical teaching of the intelligent connected vehicle technology major within current higher vocational colleges, and in combination with the "Three Pillars" testing and certification approach for intelligent connected vehicle, it proposes a solution for integrating virtual simulation technology into practical teaching. And it also constructs an online-offline hybrid teaching model integrating "theoretical teaching-virtual simulation-real vehicle operation" as well as its evaluation system. The practical results show that the application of virtual simulation technology not only effectively solves the difficulties existing in the practical teaching of the intelligent connected vehicle technology major, but also significantly enhances students' learning interests and post adaptability, and further optimizes the effect of practical teaching. References | Related Articles | Metrics

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Analysis on the Characteristics of the National Planning Textbooks for the "Fourteenth Five-Year Plan" for Automobiles in Higher Vocational Technical Colleges XIE Xianshu 2025, 50(12): 133-137.  DOI: 10.16638/j.cnki.1671-7988.2025.012.023 Abstract ( )   PDF (1223KB) ( )   Textbook is an important support for educating people and talents. In order to solve the problems of content and structure in the construction of vocational education textbooks, this paper analyzes the characteristics of automobile course textbooks from the textbook list of the first "Fourteenth Five-Year Plan" vocational education in China. It is found that the number of national teaching materials for vocational education in higher vocational colleges is polarized in all major categories and courses, and the repetitive problem of the construction of some course materials is prominent, while the national planning materials related to the courses of new energy vehicles and intelligent network vehicles are less, and the construction of high-quality textbook for new technology and new forms of vocational education in automobiles needs to be strengthened. It is suggested that the construction of teaching materials should combine the local industrial advantages, unify the post course competition certificate, integrate the curriculum ideology and politics, and jointly design and develop the new form of teaching materials that meet the current industrial development, such as project task, workbook, digital and online course teaching resources, and pay attention to avoid repetitive construction. References | Related Articles | Metrics

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New Engineering Construction and Practice of Intelligent Vehicle Engineering Specialty for Intelligent Networked Automobile Industry GAO Wei1 2025, 50(12): 138-142.  DOI: 10.16638/j.cnki.1671-7988.2025.012.024 Abstract ( )   PDF (1209KB) ( )   In order to actively adapt to the needs of intelligent networked automobile industry and meet the requirements of new engineering construction, based on the analysis of the current situation and existing shortcomings of intelligent vehicle engineering specialty, according to the orientation and characteristics of talent training in our school, this paper actively explores the new engineering construction of intelligent vehicle engineering specialty in our school from three aspects: constructing a multidisciplinary cross-integration curriculum system, establishing a "four-level and three-combination" innovative practical teaching system running through the main line of multidisciplinary cross-integration, and constructing a new teaching mode of "artificial intelligence+education". In order to cultivate multidisciplinary interdisciplinary talents of intelligent vehicle engineering to meet the needs of intelligent connected automobile industry and the requirements of new engineering construction References | Related Articles | Metrics

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Research on the Curriculum System of New Energy Vehicles in Vocational Colleges Based on Typical Tasks YUAN Guolun 2025, 50(12): 143-148.  DOI: 10.16638/j.cnki.1671-7988.2025.012.025 Abstract ( )   PDF (1113KB) ( )   With the booming development of the new energy vehicle industry, the demand for highquality technical talents is becoming increasingly urgent. In order to meet the development needs of the industry, this article deeply explores the design and implementation strategies of the curriculum system for new energy vehicle technology majors, aiming to cultivate high-quality talents that adapt to the development of the industry. The article first analyzes the principles of constructing the curriculum system, and then elaborates in detail on the content, examples, and teaching methods of five core courses, including principles and maintenance of electric vehicles. Through this study, valuable references have been provided for the design and implementation of the curriculum system for the new energy vehicle technology major, which will help promote the improvement of the quality of talent cultivation in the industry. References | Related Articles | Metrics

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Design of a Virtual Teaching System for Electric Vehicles LI Xiangxiang1 2025, 50(12): 149-154.  DOI: 10.16638/j.cnki.1671-7988.2025.012.026 Abstract ( )   PDF (5909KB) ( )   In the teaching practice of the new energy vehicle course, due to the high purchase cost of equipment and models and the limited on-site resources, students have to share resources, which limits independent operation and exploration and affects the learning efficiency. Taking the Tesla battery electric vehicle as an example, this article first conducts 3D modeling using the MAYA software, and then develops a virtual teaching system based on the Unity 3D software, which can complete virtual experiments such as the display design of the vehicle structure, the composition of the battery structure, the series and parallel connection of batteries, and the application of power selection. The traditional planar teaching has been transformed into a three-dimensional teaching that is not restricted by time and place, enhancing the interaction of scenarios. It is expected that through this system, students can obtain a real, immersive and exploratory learning experience in a virtual environment. References | Related Articles | Metrics

Standards·Regulations·Management

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Research on Micro-Traffic Simulation Optimization Based on Genetic Algorithm CAI Shuang 2025, 50(12): 155-161.  DOI: 10.16638/j.cnki.1671-7988.2025.012.027 Abstract ( )   PDF (1414KB) ( )   As a key node of road network, the optimization of signal timing at urban intersections is very important to alleviate traffic congestion. In order to solve the problem that the traditional Webster algorithm has insufficient adaptability in dynamic traffic scenes, this study proposes a single intersection signal timing optimization method based on genetic algorithm (GA). The micro-traffic model of Qingtan West Road intersection is built by SUMO simulation platform, and the real traffic flow characteristics are restored by Krauss car-following model, and several groups of comparative experiments are set up to verify the performance of the algorithm. The results show that the average delay of vehicles at intersections is reduced to 29.84 s (down by 12.31%) and the queue length is shortened to 30.29 m (down by 10.44%), which is significantly better than the optimization effect of Webster algorithm (average delay is 30.30 s/decrease by 10.96%. The queue length is 30.91 m/ decrease by 8.61%). In addition, through floating-point coding and adaptive search mechanism, the genetic algorithm can still achieve the global optimal solution under complex phase constraints, and its traffic capacity is improved to 0.81 saturation, which is 11.0% better than the original scheme. This study proves that genetic algorithm has stronger adaptability and robustness in dynamic traffic signal optimization, which provides a theory for fine management and control of urban intersections. References | Related Articles | Metrics

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Research on the Model of End-of-Life Heavy-Duty Truck Recycling and Disassembling WANG Shuangfeng, LI Hongbin* 2025, 50(12): 162-165.  DOI: 10.16638/j.cnki.1671-7988.2025.012.028 Abstract ( )   PDF (1140KB) ( )   To address current situation of domestic automobile manufacturers in recycling and disassembling end-of-life automobiles of their own brands, this paper studies the operation mode of end-of-life automobiles disassembling and recycling in China, analyses the operational characteristics, advantages, and disadvantages of various recycling modes, and establishes an economic radius model for recycling end-of-life heavy-duty commercial vehicles. It analyzes the factors that restrict the disassembling and recycling of scrapped commercial vehicles from the market perspective. Finally, relevant suggestions are put forward from the levels of end-of-life automobiles supervision, vehicle manufacturing enterprises, and and-of-life automobiles disassembling and recycling enterprises, to promote the standardized development of end-of-life automobiles disassembling and recycling and the circular utilization of resources in China. References | Related Articles | Metrics

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Overview of Research Methods for Vehicle Cabin Lightweight Design GAO Peng 2025, 50(12): 166-172.  DOI: 10.16638/j.cnki.1671-7988.2025.012.029 Abstract ( )   PDF (3536KB) ( )   With the increasing strictness of environmental regulations and the enhancement of fuel economy demands, automakers are facing the challenge of cab lightweighting. Lightweight design can not only improve vehicle performance but also reduce fuel consumption and emissions. This article provides a systematic review of the core research methods in the field of cab lightweight design, focusing on three main areas: material selection, structural optimization, and manufacturing processes. It systematically reviews and summarizes the research progress and contributions in these areas over the past five years, analyzes current research outcomes, method applications, and challenges faced, and looks ahead to future trends. References | Related Articles | Metrics