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15 June 2025, Volume 50 Issue 11 Previous Issue   
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New Energy Vehicle
Design and Research
Testing and Experiment
Process·Materials
Use and Maintenance
Automobile Education
Standards·Regulations·Management
Reviews


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New Energy Vehicle

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Prediction of SOC in New Energy Vehicle Charging Based on CNN-Attention-LSTM LIU Feng1 , GAO Youshan1 , HUANG Min2 , SUN Haoran1 , WANG Aihong1 , REN Hong1 2025, 50(11): 1-7.  DOI: 10.16638/j.cnki.1671-7988.2025.011.001 Abstract ( )   PDF (833KB) ( )   Accurately predicting the state of charge (SOC) in the charging process of new energy vehicles can improve charging efficiency and safety, extend battery life, and improve driving experience and intelligence level, which has important research value. This paper is based on the method of combining convolution neural network (CNN) with attention mechanism and long shortterm memory (LSTM) network, information needed for prediction is obtained first. The data set is divided and the data is preprocessed to improve the training effect and generalization ability of the model. Then the CNN-Attention-LSTM model is input for training, and the effectiveness of the model is verified according to the evaluation index. The research results show that the model can extract important features from a large number of data, and in theory, the SOC can be accurately predicted during the charging process only by acquiring the data during the charging process in real time. By designing different charging experiments and comparing the actual SOC and the predicted SOC in the charging process, it is concluded that the CNN-Attention-LSTM model is feasible and has good generalization and better performance than the CNN-LSTM model, which will have wide application value in the future. References | Related Articles | Metrics

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Influence of the Thrust Rod Size on the K&C Characteristics of the Integral Bridge Suspension for a Trolleybus JIA Yuecheng1 , TIAN Guoying1,2 , CHEN Jingwei3 , SUN Shulei1,2 2025, 50(11): 8-13.  DOI: 10.16638/j.cnki.1671-7988.2025.011.002 Abstract ( )   PDF (1154KB) ( )   In order to analyze the influence of thrust rod size on the K&C characteristics and tire wear, the elastic kinematics model of the integral bridge suspension of a trolley bus is established by ADAMS/Car based on the hard point coordinates of the real suspension. Then, according to the actual spatial structure of the suspension, the main positioning parameters and the gradient change under four working conditions, such as double wheel synchronous and rebound, braking force and lateral force loading, are calculated when the rod length and angle change within the range of ±10 cm and ±10° respectively. Finally, through comparative analysis, the optimal thrust rod size is obtained. The analysis results show that the shorter the thrust rod is, most wheel positioning parameters and gradients deteriorate to some extent. Through suspension kinematics analysis, the longitudinal arm is increased by 10 cm, and most positioning parameters and gradient are optimized to a certain extent, which is conducive to reducing tire wear. References | Related Articles | Metrics

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Development and Research of the Performance Testing Experimental Bench for the Power Steering System of New Energy Vehicles PENG Liang 2025, 50(11): 14-18,23.  DOI: 10.16638/j.cnki.1671-7988.2025.011.003 Abstract ( )   PDF (1088KB) ( )   In order to test the interrelationship among the input torque of the steering wheel, vehicle speed and output torque of the power steering system of the electric power steering system of new energy vehicles, this article has developed a corresponding experimental platform for the parameter test of the performance of the power steering system of new energy vehicles. It mainly studies the current and torque output by the power steering motor of the electric power steering system under different vehicle speeds and resistances, and the interrelationships among several of them. The experimental bench mainly verifies that it is mainly applied in the teaching of new energy vehicle training projects and the testing of performance parameters of power steering systems. It is verified through this test bench that under the condition of a certain vehicle speed, the smaller the rotation angle of the steering wheel, the smaller the steering resistance given by the ground, and the steering assist output by the steering system should increase slowly. Under the condition of a constant steering resistance moment, the smaller the vehicle speed, the greater the torque required for power assistance, and the smaller the torque input from the steering wheel. Conversely, the greater the speed, the smaller the torque required for assistance, and the greater the torque input from the steering wheel. The experimental results are consistent with the control theory of the electric power steering system. References | Related Articles | Metrics

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Research on Energy Management Strategy of Hybrid Energy Storage System for New Energy Vehicle ZHAO Wenbo 2025, 50(11): 19-23.  DOI: 10.16638/j.cnki.1671-7988.2025.011.004 Abstract ( )   PDF (945KB) ( )   As the main power supply unit of new energy vehicle, the working quality of hybrid energy storage system directly affects the overall operation of the vehicle. In order to improve the energy utilization efficiency of the hybrid energy storage system (HESS) for new energy vehicle and avoid energy waste, this paper introduces the composition of the lithium battery, direct current-direct current (DC-DC) converter, super capacitor and other structures of HESS for new energy vehicle, analyzes the energy control characteristics of the HESS for new energy vehicle, and explores the fuzzy control strategy based on optimizing vehicle driving speed. While improving the energy utilization effect of HESS, it also prevents the occurrence of excessive charge and discharge, and promotes the long-term development of new energy vehicle. References | Related Articles | Metrics

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Analysis and Verification of Active Heating Function of Electric Drive System QIU Chen, ZHANG Dajian* , XIA Zhuliang, CHEN Zongke, LIU Jieyu 2025, 50(11): 24-30.  DOI: 10.16638/j.cnki.1671-7988.2025.011.005 Abstract ( )   PDF (1696KB) ( )   During the development of the active heating function of the electric drive system of electric vehicles, a large number of experiments are needed to obtain the relationship between the heating capacity and its influencing factors (torque, rotational speed, current, motor angle). Therefore, the functional design is carried out, and the development cost is relatively high with a long development cycle. Therefore, this article conducts a mechanism analysis on the active heating function of the electric drive system, establishes an active heating model of the electric drive system based on the functional mechanism, and verifies the accuracy of the model through experiments. This model can be used for the simulation of the active heating function of the electric drive system. Through the simulation, the relationship data between the heating power and its influencing factors can be obtained, replacing some of the experiments required for the design and development of the active heating function, reducing the development cycle and cost, and laying the foundation for the function development. References | Related Articles | Metrics

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Application and Optimization of Dynamic Programming Method for Energy Management of New Energy Vehicles WANG Heng, LI Dongfeng, XU Liuqing 2025, 50(11): 31-35.  DOI: 10.16638/j.cnki.1671-7988.2025.011.006 Abstract ( )   PDF (812KB) ( )   The purpose of this study is to explore the application and optimization effect of dynamic programming method in energy management of new energy vehicles. By establishing and evaluating a dynamic programming model, energy allocation under different driving conditions can be optimized to improve the vehicle's range and energy efficiency, reduce energy consumption and operating costs.By collecting actual driving data and power system parameters,define optimization objectives based on dynamic programming, such as minimizing energy consumption and maximizing range.By optimizing and determining the optimal energy allocation strategy, real vehicle testing is conducted, and actual test data is collected for comparative analysis. The research results show that the energy consumption optimization rate of dynamic programming method in different types of new energy vehicles exceeds 90%. Compared with the standard energy detection method, its optimization effect is more significant, and the error rate is controlled more strictly, only 0.05%, reflecting its strong ability in precise control. In summary, dynamic programming has shown significant advantages in energy management of new energy vehicles, effectively improving energy efficiency and range. References | Related Articles | Metrics

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Analysis and Optimization of Motor Overheating Problem under Extreme Working Conditions of a DHT Hybrid Transmission Model LIU Jingxue, MA Zhongchi, ZUO Botao, HUANG Weishan, LIU Yiqiang 2025, 50(11): 36-41,59.  DOI: 10.16638/j.cnki.1671-7988.2025.011.007 Abstract ( )   PDF (1306KB) ( )   This article aims to solve the problem of overheating of the drive motor in hybrid transmissions under extreme working conditions such as mountain roads and trailers. It analyzes the cooling capacity of the cooling system, the heating power of the drive motor, and the overall control strategy of the vehicle. The following optimization measures are proposed for the problem of motor overheating: increasing the speed limit of the oil pump, adjusting the opening of the flow valve to increase the cooling flow on the motor side, and optimizing the motor torque limit strategy. Through full condition hub test and actual vehicle verification, it is found that the above measures can effectively solve the problem of motor overheating in mountain roads and trailer working conditions of this vehicle. Measures can be taken horizontally for models equipped with this hybrid transmission, and also provide reference for hybrid models in dealing with motor overheating problems under high load working conditions. References | Related Articles | Metrics

Design and Research

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Topology Optimization Design of Vehicle Frame Based on Assembly-free Finite Element Method BIAN Xiang1 , LI Zhanying2 , DONG Yanlong2 , GAO Wenliang2 2025, 50(11): 42-48.  DOI: 10.16638/j.cnki.1671-7988.2025.011.008 Abstract ( )   PDF (1638KB) ( )   The lightweight design of vehicle frame is of great significance to improve vehicle performance. In this paper, the concept design of topology optimization of sports utility vehicle (SUV) frame is carried out using the assembly-free three-dimensional Pareto algorithm. In order to improve the speed of topology optimization in practical engineering applications, the method combines the free assembly finite element method with the topology optimization algorithm based on topological sensitivity, uses the consistent voxel element to divide the grid, uses the compressed conjugate gradient method to accelerate the finite element solution speed, obtains the stress and strain fields, and then obtains the topological sensitivity fields, which can be used to control the topological changes. Firstly, the single objective topology optimization is carried out for the bending and torsional conditions of the frame respectively, to obtain a clear force transmission path and material distribution, and to understand the influence of each part of the frame on the bending stiffness and torsional stiffness. Then, the conceptual structure of the frame is obtained through the multi-condition topology optimization of the bent-torsional combination, which provides a theoretical reference for the subsequent lightweight design. By comparing the proposed method with HyperWorks software, similar topological optimization results are obtained under all working conditions, which proves the effectiveness of the proposed method in obtaining the optimal topology. The computational time of the proposed method is significantly lower than that of HyperWorks, indicating that the proposed method has a significant time advantage in solving large topology optimization problems. References | Related Articles | Metrics

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Design of a Dump Truck Frame Structure Lightweight Based on Finite Element Method FAN Xiaofei 2025, 50(11): 49-52,77.  DOI: 10.16638/j.cnki.1671-7988.2025.011.009 Abstract ( )   PDF (1594KB) ( )   With the continuous improvement of energy-saving and environmental protection requirements for automobiles and the increasingly fierce competition in the transportation industry, the lightweight design of dump trucks has become an important research direction. This paper takes a dump truck frame as the research object, finite element analysis method is used to analyze the strength, stiffness, and fatigue life of the frame structure. Based on this, lightweight design is carried out under different schemes. Finally, the optimal optimization design idea was determined through comprehensive comparison of optimization schemes. This provides a certain technical reference for the lightweight design and improvement of dump trucks. References | Related Articles | Metrics

Testing and Experiment

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Research on Noise Reduction in the Cab of Light Trucks WANG Jiahua 2025, 50(11): 53-59.  DOI: 10.16638/j.cnki.1671-7988.2025.011.010 Abstract ( )   PDF (1984KB) ( )   The purpose of this paper is to reduce the cab noise of light duty trucks. Based on subjective evaluation, the test objects and items are determined. The main influencing factors of noise and noise reduction measures are determined by combining noise and vibration test data and finite element analysis comprehensive methods. This paper implements noise testing under various intake noise isolation measures for the noise in the cab and intake noise, and conducts modal testing on the intake system components on the vibration transfer path. The analysis of the test data determines the main factors and noise reduction measures of the cab noise, and conducts modal analysis and noise reduction design for the components on the vibration transfer path. The checking test results show that the improved design based on test data analysis and finite element analysis effectively reduces the noise in the cab. The comprehensive method of noise testing, data analysis, and finite element analysis described in this paper has certain reference and reference significance for reducing noise in the cab. References | Related Articles | Metrics

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Analysis and Optimization on Brake Pedal Vibration Problem in a Passenger Car YIN Heshun 2025, 50(11): 60-63.  DOI: 10.16638/j.cnki.1671-7988.2025.011.011 Abstract ( )   PDF (1759KB) ( )   In the process of tuning a certain passenger car type, the obvious vibration problem of the brake pedal in rough road and deceleration gliding conditions is analyzed, and the excitation source, transmission path and response of the vehicle are analyzed to determine that the vibration of the brake pedal is caused by the resonance between the wheel core excitation frequency and the modal frequency of the brake pedal bracket. The modal frequency of the pedal bracket is simulated and analyzed by computer aided engineering (CAE) to increase the modal frequency of the brake pedal bracket and reduce the vibration sensitivity of the brake pedal bracket. It can be verified through road tests that the vibration of the brake pedal has been optimized by 50%, and the subjective driving evaluation is completely acceptable. Eventually, the problem of pedal vibration has been solved. References | Related Articles | Metrics

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Analysis and Improvement of Knock Noise of High Pressure Fuel Pump Tappet LIU Yunbing 2025, 50(11): 64-67.  DOI: 10.16638/j.cnki.1671-7988.2025.011.012 Abstract ( )   PDF (1888KB) ( )   The turbocharged engine produces a knocking sound at idle when the high-pressure oil pump is under high pressure. The article aims to identify the root cause of the knocking sound and quickly resolve complaints in mass production. By analyzing the working principle of the highpressure oil pump and comparing measurements of relevant components such as the rocker arm, camshaft, and cover, it is ultimately determined that the source of the knocking sound comes from the rocker arm of the high-pressure oil pump. Through comparative measurements of key dimensions related to the rocker arm of the high-pressure oil pump, it is found that the unreasonable design requirements for verticality are the fundamental cause of the knocking sound. Using noise analysis equipment to evaluate the rocker arms of the high-pressure oil pump with different verticality requirements both subjectively and objectively, new design requirements for the verticality of the rocker arm are established, guiding suppliers to optimize their processes to meet these requirements, effectively eliminating the knocking sound. References | Related Articles | Metrics

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Research on LQR Control of Air Semi-Active Suspension Optimized by Improved Genetic Algorithm LV Xingchen 2025, 50(11): 68-72，88.  DOI: 10.16638/j.cnki.1671-7988.2025.011.013 Abstract ( )   PDF (2965KB) ( )   Aiming at the problem that the selection of weight coefficient parameters in the linear quadratic regulator (LQR) control method of the air semi-active suspension system has limitations and relies to a large extent on manual experience. Taking advantage of the excellent global optimization search ability and parallel ability of the improved genetic algorithm, a strategy for optimizing the control parameters of LQR by the improved genetic algorithm (GA) is proposed. Firstly, establish the mathematical model of the quarter-vehicle semi-active suspension system, and build the simulation model with the LQR controller in the Simulink environment. Then, the simulation experiment of optimizing the LQR controller with the improved genetic algorithm is carried out. The simulation results show that, compared with the passive suspension system, under the random road conditions of Class B and Class C, the LQR controller based on the improved genetic algorithm reduces the peak of vehicle body acceleration by 42.17% and 47.23% respectively, improving the ride comfort of the vehicle. References | Related Articles | Metrics

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Simulation Analysis of Air Spring Shock Absorption for the Cab of Special Vehicles HUANG Dewei, XU Feifan, GAO Shengjie 2025, 50(11): 73-77.  DOI: 10.16638/j.cnki.1671-7988.2025.011.014 Abstract ( )   PDF (1223KB) ( )   Special vehicles are frequently used in harsh road conditions for transportation, where the vibration and shock environment is particularly severe. Air spring vibration isolation systems, as an effective means of vibration control, have been widely applied in the cabs of special vehicles. This paper focuses on the simulation analysis of air spring vibration isolation systems in the cabs of special vehicles. The basic principles and characteristics of the air spring vibration isolation system are first introduced, followed by the establishment of a finite element model of the air spring vibration isolation system using finite element software. Through simulation analysis, the vibration isolation effect of air springs under different stiffness settings is studied in detail. The results indicate that air springs can achieve a vibration reduction rate of over 45.5% under various stiffness configurations, especially when the stiffness is set to 88.8 N/mm (a relatively low stiffness), the vibration reduction rate can reach as high as 90.6%. References | Related Articles | Metrics

Process·Materials

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The Application of Ratio Monitoring in Bolt Tightening Process Control WANG Jianghui, PENG Dong* , LEI Xiaoyu, CHEN Sheng 2025, 50(11): 78-82.  DOI: 10.16638/j.cnki.1671-7988.2025.011.015 Abstract ( )   PDF (1665KB) ( )   The article analyzes the problem of floating nails during bolt tightening. By analyzing the torque angle curve, it is found that there is a difference between the failed bolt curve and the normal bolt curve. Through effective analysis and identification of the curve, the entire tightening curve is divided into several parts. The starting and ending points of each part of the curve can be set according to the actual process conditions. By setting the ratio of the change in torque and angle difference between the starting and ending points, effective constraints on the changes in this part of the curve are indirectly achieved, thereby monitoring the entire tightening process. At the same time, the torque angle ratio method is explored for its effectiveness in monitoring bolt skew, model errors, thread abnormalities, and foreign objects in threaded holes, implementing stricter process control for bolt tightening and providing reference for the control of high demand and highprecision bolt tightening. Key words: tightening cur References | Related Articles | Metrics

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Diagnosis and Solution of Subframe Test Cracking Based on CAE Simulation Analysis ZENG Bo, YANG Quan, MA Xiaoqin, TAN Yingjie, GAO Zhongjun, TANG Mengxue 2025, 50(11): 83-88.  DOI: 10.16638/j.cnki.1671-7988.2025.011.016 Abstract ( )   PDF (2121KB) ( )   In response to the cracking problem found in a subframe during vehicle testing, this paper uses the computer aided engineering (CAE) simulation analysis method to establish a fatigue simulation analysis model. Combining faulty parts' fracture analysis, dimensional inspection of the actual parts, and bench test reproduction, the paper conducts a cause analysis to find the design and process-related causes of the cracking. Based on the failure reasons, the paper proposes targeted structural and process optimization solutions. Using the fatigue simulation analysis model, the paper verifies the optimization solutions theoretically. At the same time, the paper conducts physical verification tests using a test rig and road tests. The successful verification of the theoretical and physical tests proves the effectiveness of the optimization solutions, providing a reference for solving similar problems in automotive subframes. References | Related Articles | Metrics

Use and Maintenance

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Research on the Principle and Fault Cases of the Multi-Layer Verification of the Magotan B8L KESSY System KONG Tianzeng, PAN Zongyou, ZHANG Zhixiang, ZHANG Yongqin, LI Guorui 2025, 50(11): 89-93.  DOI: 10.16638/j.cnki.1671-7988.2025.011.017 Abstract ( )   PDF (1879KB) ( )   This paper studies the keyless entry and start system of the Volkswagen Magotan B8L, discussing its architecture, functions and typical fault diagnosis methods. The KESSY system is mainly composed of multiple control modules such as J965, J519, J285, and antennas, and realizes communication among the modules through controller area network (CAN)/local interconnect network (LIN) buses. It relies on the anti-theft system to complete multi-layer dynamic encryption verification to achieve keyless door unlocking and engine starting. This paper combines specific cases to analyze the fault that the abnormal CAN bus voltage caused by the internal short circuit of the KESSY control module (J965) results in the inability to unlock the door and start the engine. The fault was located and repaired through methods such as voltage detection, module plugging and unplugging, and replacement. This case highlights the challenges posed by the modular, networked, and integrated characteristics of the KESSY system to the systematic thinking of maintenance personnel, providing theoretical basis and practical reference for automotive maintenance. References | Related Articles | Metrics

Automobile Education

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Innovative Practice of Teaching Mode of Creating Process Virtual Simulation Experiment Platform ZHOU Lili1,2 , XING Mingming2*, HAN Hu2 , CHEN Peijiang2 , YUE Lixin2 , KONG Dexi2 2025, 50(11): 94-99.  DOI: 10.16638/j.cnki.1671-7988.2025.011.018 Abstract ( )   PDF (1837KB) ( )   The creating process teaching of virtual simulation experiment platform can not only improve students' interest and participation, but also enhance safety and reliability, save time and cost, provide personalized learning path, promote interdisciplinary learning and teamwork, and improve teaching effect. Therefore, the teaching of vehicle engineering undergraduate major is taken as the research object, a teaching model of creating virtual simulation experiment platform process is proposed. Firstly, the virtual simulation experiment of automotive power feed suspension is taken as the research object. A process teaching framework for a virtual simulation platform cobuilt by teachers and students is constructed. It lays the foundation for the reform of project-driven and competitive teaching models. Secondly, based on the established virtual simulation experimental platform, a science and educational collaboration teaching approach oriented towards college student innovation and entrepreneurship projects is designed. The college student innovation and entrepreneurship project approvals statistical data are analyzed. The research results prepare conditions for carrying out science and technology competitions for college students. Finally, taking the creation of the virtual simulation experimental platform as an opportunity, a process innovation technology has been deeply explored. A process-oriented teaching plan for competitions is designed. Based on the gray-scale prediction theory, the development trend of the competition is predicted. The process teaching content of the virtual simulation experiment platform is coordinated, and a new model of comprehensive process teaching is formed. References | Related Articles | Metrics

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The Teaching Design of Ideological and Political Elements into Professional Courses －Taking Automotive Application Engineering Course as an Example ZHOU Haichao, CHEN Yu, PAN Gongyu 2025, 50(11): 100-103,125.  DOI: 10.16638/j.cnki.1671-7988.2025.011.019 Abstract ( )   PDF (969KB) ( )   Exploring the ideological and political elements of professional theoretical knowledge and organically integrating them into professional courses, conducting professional knowledge teaching and moral value guidance in a coordinated manner, is not only a highlight of innovating traditional teaching methods, but also an important measure to promote higher education to achieve the fundamental task of fostering virtue and nurturing talent. This article focuses on the automobile power performance knowledge points with the characteristics of combining strong theory with practice in the course of Automotive Application Engineering course, based on the leading role of teachers in the classroom, the ideological and political elements are explored and naturally integrated into the teaching process in teaching design process. Through this teaching way, improves their interest in professional knowledge learning, and helps students foster correct world outlook, outlook on life and value, so as to achieve the teaching goal of "learning for application". References | Related Articles | Metrics

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"Three Elements, Five Carriers" Integrated Implementation Matrix Network for Course-based Ideological and Political Education －Taking Intelligent Automobile Integrated Testing as an Example CHEN Jianyu 2025, 50(11): 104-110.  DOI: 10.16638/j.cnki.1671-7988.2025.011.020 Abstract ( )   PDF (1325KB) ( )   With the continuous upgrading of the intelligent connected vehicle industry, the task of developing smart vehicle-related courses and course ideological and political education construction for cultivating high-quality technical and skilled talents in vocational colleges is becoming increasingly urgent. This paper takes the core course of intelligent vehicle integration testing in automotive intelligent specialty as the construction subject, designs a three-dimensional course ideological and political education mainline of "professional spirit, professional ability, and engineering thinking," and reconstructs the knowledge system of the course into five types of course ideological and political teaching carriers of "technological achievements, threat barriers,complex problems, standard systems, and role models." It establishes the mapping support relationship between the professional knowledge points and the course ideological and political elements, forms a course ideological and political integration implementation matrix network, and implements the course ideological and political teaching strategy based on the "5E" teaching philosophy, according to the job requirements of enterprises, tasks are driven into classroom teaching, and the course ideological and political teaching strategy is implemented with the teaching process of "clearing, analyzing, determining, understanding, enlightenment and deepening" as the main line to achieve good educational effects. References | Related Articles | Metrics

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OBE Concept Integration "Internet +" Vehicle Major Talent Training Research LEI Lei, ZHANG Qingrong, ZHANG Hanyu, LI Xiaoxin 2025, 50(11): 111-114,164.  DOI: 10.16638/j.cnki.1671-7988.2025.011.021 Abstract ( )   PDF (1304KB) ( )   The core of deepening the reform of higher education lies in building a talent training model that meets the needs of modern industrial development. Local universities, as the main force in cultivating applied talents, are particularly important for their reform. This study selects the vehicle engineering major of Chongqing College of Mobile Telecommunications as a practical case, proposes a vehicle engineering talent training mode based on outcome based education (OBE) concept and "Internet +", and constructs a reform and training system for undergraduate applicationoriented talents with "one center, two integrations, three dimensions and four platforms". Among them, we will build a theory practice integrated teaching system, implement the "1+3+3" hybrid mode based on the OBE concept, rely on the "Internet +" platform, build a diversified evaluation system, comprehensively and accurately evaluate the innovative quality of students, and improve the quality of talent training. The research results show that the talent training mode of OBE concept integration with "Internet +" can effectively improve the quality of education, and significantly improve the employment rate and professional satisfaction of students. References | Related Articles | Metrics

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Research on the Construction of New Energy Vehicle Vocational Undergraduate Curriculum System Adapt to the New Quality Productive Forces WANG Zhongwen, WANG Honghai Curriculum System Adapt to the New Quality Productive Forces 2025, 50(11): 115-120.  DOI: 10.16638/j.cnki.1671-7988.2025.011.022 Abstract ( )   PDF (1560KB) ( )   The new energy vehicle industry is a national key pillar industry integrating advanced manufacturing technologies such as new technologies, new materials, new processes, and new equipment, which occupies a leading position in the global market. China is actively promoting the application of scientific and technological innovation in the new energy vehicle industry, which is a typical representative of shaping new quality productive forces. In the process of promoting the high-level and high-quality development of vocational undergraduate education empowered by the new quality productive forces, cultivating professionals is the key to promoting innovative development and sustained leadership in the new energy vehicle industry. In order to adapt to the transformation of the industry and talent cultivation modes, it is urgent to establish an industryteaching integration curriculum system of " new quality productive forces+vocational undergraduate education+precise industrial positioning". The optimized design of school enterprise cooperation can enhance the level of high-quality development of vocational colleges and build a new highland of high-quality talent cultivation based on new quality productive forces. References | Related Articles | Metrics

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Teaching Reform of Microcontroller Course Based on Open-Source Electronic Products LI Chuan, SUN Kangming 2025, 50(11): 121-125.  DOI: 10.16638/j.cnki.1671-7988.2025.011.023 Abstract ( )   PDF (1650KB) ( )   To address the issues of disconnection between theory and practice and insufficient handson opportunities in microcontroller course teaching, a teaching reform scheme based on open-source electronic products is proposed. This scheme leverages open-source platforms, combined with a product-based teaching model, to create an integrated teaching environment that bridges theory and practice. By designing open-source product cases closely related to real-life applications, the scheme tightly integrates theoretical knowledge with practical operations, guiding students through the complete development process, including product requirement analysis, hardware design, software programming, and debugging and optimization. During the teaching process, the advantages of open-source platforms in resource sharing are utilized to encourage students to actively participate in the open-source community, learn from excellent project experiences, and improve code quality and project management skills. Practice has shown that this reform scheme effectively addresses the shortcomings of traditional teaching models, significantly enhances students' hands-on abilities, innovative awareness, teamwork skills, and engineering practice literacy. References | Related Articles | Metrics

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Research on the Development Path of the New Quality Productive Forces for the Construction of Automobile Intelligent Technology Specialty DAI Xinlei, HUANG Xiaopeng 2025, 50(11): 126-131,136.  DOI: 10.16638/j.cnki.1671-7988.2025.011.024 Abstract ( )   PDF (1068KB) ( )   As a newly established major in response to the rapid development of the intelligent connected vehicle industry, the automotive intelligent technology major in higher vocational colleges faces challenges in empowering the development of new quality productivity in the rapidly evolving intelligent connected vehicle industry due to various factors such as the foundation of professional construction, the teaching staff, and practical training conditions. Starting from the constituent elements of productive forces, this article analyzes the connotation and characteristics of new quality productive forces. Combined with the construction practice of the automotive intelligent technology major, it proposes the construction of elements such as professional norms, the construction of the teaching staff, the construction of teaching conditions, the construction of courses, the evaluation of training quality, and social service capabilities. The idea of comprehensively utilizing digital and intelligent technologies such as big data, visualization, and blockchain to cultivate innovative high-quality technical and skilled talents and empower the development of new quality productivity in industries. References | Related Articles | Metrics

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Exploration and Practice on the Reform of the Assessment of the Course of New Energy Vehicle Technology WANG Yanpeng, XIE Qianqian, CHEN Guoqiang, ZHANG Anchao, ZHANG Dengpan 2025, 50(11): 132-136.  DOI: 10.16638/j.cnki.1671-7988.2025.011.025 Abstract ( )   PDF (1065KB) ( )   To enhance the effectiveness of classroom instruction, improve the quality of talent cultivation in new energy vehicle (NEV) technology, and contribute to China's goal of becoming a leading automotive nation, a teaching reform exploration plan has been proposed for the NEV technology course. This plan is tailored to the characteristics of the course and the students' learning progress in class, focusing on the course assessment aspect that student value most. A quantitative scheme for process-oriented assessment of students has been established, which de-emphasizes strict grading criteria during the process of assessment to boost student engagement. Additionally, nonstandard test questions have been introduced into the examination to strength the cultivation of comprehensive application abilities and innovative spirits. Practical explorations have been conducted throughout the teaching process. By refining the process assessment and incorporating non-standard answer questions, students' learning motivation has been stimulated, and their innovative thinking has been nurtured. Both examination results and student feedback indicate that this teaching reform plan has achieved beneficial outcomes. References | Related Articles | Metrics

Standards·Regulations·Management

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Analysis and Countermeasures of the International Strategic Competitiveness of China's Automobile Industry XU Yaozong1 , TIAN Fangqing1 , ZHANG Lingchao2*, XU Bin3 , YANG Kaikai3 2025, 50(11): 137-142.  DOI: 10.16638/j.cnki.1671-7988.2025.011.026 Abstract ( )   PDF (1242KB) ( )   As an important pillar industry of the national economy, the automobile industry not only profoundly affects the country's economic growth and industrial structure, but is also closely related to all aspects of social development. This paper analyzes the automobile industry and strategic paths of major automobile exporting countries to provide theoretical support and decision-making basis for the high-quality development of China automobile industry. By analyzing the development history of the automobile industry in developed countries such as Germany, Japan, South Korea, and the United States, uses the hierarchical analysis method to construct a model of automobile industry competitiveness evaluation index system. Combined with the explicit comparative advantage index and the export growth advantage index, compares the competitive advantages and disadvantages of the development of China automobile industry. Finally, the development trend of China's automobile industry is studied and determined from aspects such as China's automobile exports and sales, and suggestions are provided to enhance the competitiveness of China's automobile industry. References | Related Articles | Metrics

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Improvement Plan and Verification of Quality Traceability of Wire Harness Products XU Huijuan, HOU Mingming* , WANG Guorong, MA Yingying, LU Jianchao, OU Lu 2025, 50(11): 143-147.  DOI: 10.16638/j.cnki.1671-7988.2025.011.027 Abstract ( )   PDF (2773KB) ( )   With the development of digitalization, autonomous driving and other technologies, competition in the automotive industry has intensified, and users are particularly concerned about the quality of automotive products. As a manufacturer of commercial vehicle wire harnesses, TY company faces the challenge of enhancing product competitiveness. This article obtaines the pain points and difficulties in quality management of TY Company through on-site investigation and historical data collection and analysis, and proposes targeted solutions. These improvement measures optimize internal management, enhance customer satisfaction, and can be extended to all aspects of enterprise quality management, providing products and services that meet customer expectations, improving product reliability and durability, and bringing more profits and reputation to the enterprise. References | Related Articles | Metrics

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Analysis of the Differences in Acceleration Noise between New and Old Standards for Passenger Transport Vehicles CAI Hanshui, CHU Guanyao, CHEN Xiong 2025, 50(11): 148-153.  DOI: 10.16638/j.cnki.1671-7988.2025.011.028 Abstract ( )   PDF (1150KB) ( )   Automotive acceleration noise testing is an important part of the automotive development process, and differences in testing methods have a significant impact on the test results. The article analyzes the differences in test methods for passenger vehicles between the new and old standards of GB 1495, and analyzes the differences in test results for different types of passenger vehicles. The results show that for M2 and M3 vehicles, compared to the old standard, the new standard has smaller test results, but the stricter limit requirements are greater; For M1 vehicles, while the standard limit value is lowered, the test results are increasing, showing a more severe trend. References | Related Articles | Metrics

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Research on the Current Situation and Prospect Analysis of the Hydrogen Fuel Cell Vehicle Industry REN Yi1 , DAI Xiaofang2* 2025, 50(11): 154-159.  DOI: 10.16638/j.cnki.1671-7988.2025.011.029 Abstract ( )   PDF (1223KB) ( )   This article aims to analyze the current development status of the global hydrogen fuel cell vehicle industry and put forward suggestions for its future development trends. Firstly, the situation where major countries have elevated hydrogen energy to a national strategy is outlined, and it is pointed out that the transportation sector, especially the commercial vehicle market, has become an important application scenario for hydrogen energy. China has achieved initial success in the promotion of hydrogen fuel cell vehicles in the commercial vehicle sector, and both the domestic policy environment and market size have shown a positive development trend. Then, through the analysis of the current situation of the international and domestic hydrogen fuel cell vehicle industry, the article predicts that hydrogen fuel cell vehicles will form a diversified application ecosystem in the future and be widely used in multiple fields. Finally, suggestions such as strengthening policy support, R&D investment, infrastructure construction and international cooperation are put forward to promote the healthy development of the hydrogen fuel cell vehicle industry and provide support for achieving clean energy transition and responding to climate change. References | Related Articles | Metrics

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Analysis on Present Advances in Obstacle Recognition Technology Based on Fusion of Visual Sensor and LiDAR TAO Chongjin 2025, 50(11): 160-164.  DOI: 10.16638/j.cnki.1671-7988.2025.011.030 Abstract ( )   PDF (1571KB) ( )   To summarize the current situation of the fusion technology of visual sensors and LiDAR, this article focuses on the demand for more accurate obstacle recognition of autonomous vehicles during road driving. Firstly, the recognition principles and characteristics of visual sensors and light detection and LiDAR are introduced. By fusing the data layer, feature layer or decision-making layer of visual sensors and LiDAR, their respective deficiencies are compensated to improve the reliability and adaptability of the system. Secondly, the key technologies in the data fusion process are expounded, and the obstacle recognition algorithms and their improvement situations are sorted out. Finally, the challenges faced by this technology are summarized, aiming to provide comprehensive and in-depth technical references for researchers in related fields and promote further innovation and breakthroughs in this technology. References | Related Articles | Metrics