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主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

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    New Energy Vehicle
    Research on Control Method for Abnormal Starting Noise in Dual Motor Hybrid System
    YUAN Shuai, NIU Wenbo, CAI Hui, ZHU Hao
    2025, 50(8): 1-5.  DOI: 10.16638/j.cnki.1671-7988.2025.008.001
    Abstract ( )   PDF (1738KB) ( )  
    The automotive industry is currently vigorously developing towards new energy, but the limitations of batteries have led to hybrid vehicles becoming the mainstream product in the market for a long time to come. In response to the problem of abnormal gear knocking noise in the current dual motor hybrid vehicle model, this article mainly discusses the generation mechanism and solutions. In the future, reference can be made to the solutions for abnormal starting noise described in this article to improve the quality of starting. Through research on the inertia, cylinder pressure, damping, and control strategy of the dual motor hybrid system, identify the impact of various factors on the issue of abnormal starting noise, and develop reasonable optimization and solutions based on various factors. By matching the system inertia, calibrate the strategy, the starting quality of a certain model of Hongqi has reached an industry-leading level.
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    Development of EREV Mule Car and Application of New Method
    WANG Ying
    2025, 50(8): 6-9,28.  DOI: 10.16638/j.cnki.1671-7988.2025.008.002
    Abstract ( )   PDF (1155KB) ( )  
    By comparing the whole vehicle architecture of pure electric vehicle and extended range electric vehicle (EREV), the feasibility of transforming pure electric vehicle into EREV mule car is analyzed. It is lower cost source and shorter updated time when using existing models to EREV mule car. Taking into account the differences between the two vehicle models, determine the development plan for the mule cart of this model. Based on a EREV mule car, this paper expounds the main reform contents such as the general layout analysis of the prototype car, the design of the compound power system, the compatibility of the prototype car controller and the software development, and the development of the body-in-white etc. From the body strength control method, body precision control method, vehicle airtightness control method, suspension system modification method, exterior decoration parts modification method, instrument table tube beam modification method, the application of innovative methods is described in detail.
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    Estimation of Road Adhesion Coefficient Considering Noise Changes
    GUO Cangyan
    2025, 50(8): 10-15.  DOI: 10.16638/j.cnki.1671-7988.2025.008.003
    Abstract ( )   PDF (993KB) ( )  
    To improve the estimation accuracy of the road adhesion coefficient under different noise conditions, this paper proposes an unscented Kalman filter (UKF) algorithm based on whale optimization to optimize the noise covariance matrix in real time. By using the optimal noise covariance matrix and the UKF, the road adhesion coefficient is estimated through the vehicle dynamics equation. Simulation results show that the proposed UKF algorithm based on whale optimization can effectively enhance the robustness of the estimator and the accuracy of the final road adhesion coefficient estimation results.
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    Influence Analysis of Control Strategies on Linearity Degree of Hybrid Electric Vehicle Acceleration Noise
    HE Hongyuan1,2 , ZHAO Fengjun1,2 , LI Yun1,2, HE Mu1,2, HOU Hangsheng1,2
    2025, 50(8): 16-21.  DOI: 10.16638/j.cnki.1671-7988.2025.008.004
    Abstract ( )   PDF (1016KB) ( )  
    With the development of new energy vehicle, the market share of hybrid electric vehicle (HEV) is gradually increasing. In order to solve the acceleration sound quality of HEV, firstly, the objective test results of inner ear noise of drivers in vehicle are taken as the research object, a unary linearity regression model based on linearity degree sound quality is established. The correlation between hybrid vehicle control strategy and noise, vibration, harshness (NVH) is analyzed. Then a NVH improvement plan is proposed, and the influence of control strategy on the linearity degree of noise inside the vehicle is studied. Finally, a B-class HEV car interior noise linearity degree optimization is taken as an example to verify the effectiveness of the strategy optimization to improve the interior noise linearity degree. This method has a short verification cycle and low cost,and is more suitable for hybrid models compared with optimization schemes such as traditional physical structure and acoustic package.
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    Intelligent Connected Vehicle
    Safety Warning of Blind Spots by Integrating Interpolation Measurement and Monocular Ranging
    ZHANG Yunfei1,2 , LI Bin1,2 , YANG Liangyi1,2, HAN Zhonghai1,2
    2025, 50(8): 22-28.  DOI: 10.16638/j.cnki.1671-7988.2025.008.005
    Abstract ( )   PDF (2285KB) ( )  
    A safety warning method for blind field of vision combining interpolation measurement and monocular distance measurement is proposed to provide sufficient response time for drivers and effectively avoid potential traffic accident risks. Real time and high-precision detection of blind spots and obstacles vision using YOLOv3 algorithm; Using monocular ranging technology, utilizing the internal and external parameters of the camera and the image features of obstacles, the distance between blind spots and obstacles in the field of view and vehicles is preliminarily estimated; Further introduce interpolation measurement technology to dynamically correct and optimize distance measurement results by collecting precise measurement points at known distances in advance;Taking into account the reaction time, vehicle speed, and friction coefficient of vehicles when responding to emergencies, calculate the safety warning distance of blind spots field of view, and accurately determine when to issue a safety warning. The experimental results show that this method can accurately detect blind spots and obstacles around vehicles, measure the distance between them in real time, and issue warning signals in advance, driving safety of the vehicle can be significantly improved.
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    Research and Application of Key Technologies of Large Models in Intelligent Connected Vehicles
    ZHAO Xingyang1,2, HUANG Ailin1
    2025, 50(8): 29-36.  DOI: 10.16638/j.cnki.1671-7988.2025.008.006
    Abstract ( )   PDF (748KB) ( )  
    With the continuous deepening of the access and penetration of intelligent connected vehicles, promoting industrial development and application implementation through large-model technology has gradually become the consensus within the industry. This article conducts a systematic study on the technical architectures, algorithms, and principles of large language models, visual-language large models, and multimodal large models, and conducts an in-depth analysis of their specific applications in various scenarios in the intelligent driving domain, cockpit domain, and networking domain. Through the study of the models of mainstream automobile enterprises and technical cases in the current market, it discusses in detail the actual application status of large models in multi-domain intelligence and reveals the key role of large models in promoting the technological progress of intelligent connected vehicles. Finally, it analyzes the challenges currently faced by large-model technology and puts forward targeted suggestions for future development. This article has important reference value for the technical research of large models in the field of intelligent connected vehicles.
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    Feasibility Analysis and Implementation Plan for OTA Upgrade of Traditional Instrument Clusters
    YANG Hao, LV Zhongbo, LENG Chao, ZHONG Peiwen*
    2025, 50(8): 37-39,44.  DOI: 10.16638/j.cnki.1671-7988.2025.008.007
    Abstract ( )   PDF (781KB) ( )  
    With the continuous improvement of the level of automotive electronics, the upgrade and iteration of on-board controller software are becoming more and more frequent in automotive electronic systems, which is extremely important for enhancing the intelligence of automobiles and improving user experience. However, traditional instrument controllers usually do not have remote upgrade functions and are difficult to meet the needs of rapid iteration. Therefore, in response to this problem, this paper proposes a remote automotive technology upgrade scheme that combines stability, convenience and safety. This scheme makes full use of the mature upgrade mechanism of the intelligent cockpit system, integrates the traditional instrument controller with the intelligent cockpit system, and successfully realizes the remote update of the instrument controller system through wireless networks. Real vehicle tests show that this technical scheme is feasible, safe and reliable, indicating that over the air (OTA) technology will usher in rapid development.
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    Research on the Application of LQR Optimal Algorithm in EPS under Intelligent Drive Mode
    HUANG Qiansheng
    2025, 50(8): 40-44.  DOI: 10.16638/j.cnki.1671-7988.2025.008.008
    Abstract ( )   PDF (1079KB) ( )  
    To address the oscillation issue in electrical power system (EPS) caused by external interference during intelligent drive mode, this paper conducts detailed analysis and identifies insufficient robustness of the proportional-integral-derivative (PID) controller responsible for steering angle closed-loop control in EPS as the root cause of oscillation phenomenon. Through force analysis for mechanical steering system, differential equations of motions are established and transformed into the form of state equations. By defining performance indicator, an linear quadratic regulator (LQR) optimal controller is constructed. The weighting matric coefficient of LQR optimal controller is determined via simulation analysis. The vehicle tests are conducted as well and the results show that, compared to the PID controller, the LQR optimal controller demonstrates superior robustness and tracking performance, and it not only completely resolves the oscillation issue in EPS but also achieves a certain degree of improvement in the key indicators of tracking performance. This paper also provides a practical approach for steering angle control in steering-by-wire system.
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    Research on Speed Bump Detection Algorithm Based on Improved YOLOv8n
    LI Ziwen, MA Rong
    2025, 50(8): 45-49,79.  DOI: 10.16638/j.cnki.1671-7988.2025.008.009
    Abstract ( )   PDF (4680KB) ( )  
    In view of the lack of comfort for vehicle autonomous driving in obstacle target detection, and the problem that speed bumps, as a common traffic facility in daily life, will affect vehicle comfort, this paper realizes speed bump detection under good light conditions based on YOLOv8n improved algorithm. First, the speed bump data set is constructed at different distances and in different environments under good lighting conditions. Secondly, the SimAM attention mechanism is added on the basis of YOLOv8n to improve the network's perception of feature maps. Finally, the original loss function CIoU is replaced by SIoU to improve the convergence speed and robustness of the network. The results show that the mean average accuracy of the improved model mAP@0.5 is increased by 4.3%. The effectiveness of the improved model is successfully verified through the detection of deceleration belts by experimental vehicles at different distances, and the detection scheme can accurately provide the pre-detection information of deceleration belts.
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    Design and Research
    Design of Teaching Platform of Electric Vehicle Charging System Controlled by CAN Bus
    YAN Jingming, WANG Ruoxin, WU Jizhang
    2025, 50(8): 50-57.  DOI: 10.16638/j.cnki.1671-7988.2025.008.010
    Abstract ( )   PDF (2752KB) ( )  
    In order to solve the problem of offline performance testing of the charging system in the teaching of electric vehicle courses, design a controller area network (CAN) bus controlled charging system teaching platform. The article elaborates on the platform design from the composition of the charging system, working principle, platform architecture, hardware selection, software design, and test. Use the USB-CAN interface card to connect the PC as the upper computer to the charging system. Send CAN messages to control the operation of the charging system. Record the output voltage and current values of the 60 s loading test to determine the performance of the charging system. Carry out teaching through the teaching platform, students can master the knowledge and skills of CAN bus control principle of charging system, drive control, and charging machine testing, Provide visual learning scenarios for course instruction, job requirements for the integration of new technologies in electric vehicle repair, enhancing the effectiveness of practical training.
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    Optimization Design of a Commercial Vehicle Front Trailer Hook Based on ANSYS Workbench
    HU Quanquan, XIAO Junhao, LI Yifan, CHEN Rui
    2025, 50(8): 58-61.  DOI: 10.16638/j.cnki.1671-7988.2025.008.011
    Abstract ( )   PDF (1367KB) ( )  
    In order to take into account the problem that the front trailer hook of a commercial vehicle has sufficient strength and occupies the least space, the paper uses the trailer hook as the carrier, based on the static analysis module of ANSYS, and uses the trailer hook after SolidWorks parametric modeling to carry out the preliminary static analysis. Through the six sigma optimization module of ANSYS Workbench, sufficient parameter samples can be custom extracted and modeled automatically. Then based on the static analysis module of ANSYS Workbench, each model is calculated successively to obtain the final optimal design scheme. This method of using ANSYS Workbench six sigma analysis tool to optimize the design of commercial vehicle front trailer hook can complete the optimization design of a commercial vehicle front trailer hook, which has important guiding significance for the optimization design of mechanical parts.
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    Compression Simulation and Section Optimization of Light Truck Door Sealing Strip
    YANG Lu, XU Weiwei, WANG Yangyang, FENG Zhao, LIU Jinlong, ZHOU Qiaoying
    2025, 50(8): 62-66.  DOI: 10.16638/j.cnki.1671-7988.2025.008.012
    Abstract ( )   PDF (1740KB) ( )  
    This paper improved and optimized the cross-section of door sealing strip to address the issue of high door closing force during closing the light truck door. A compression simulation model with a sealing strip length of 100 mm is established using nonlinear finite element analysis software. The compression displacement and compression force variation law of the sealing strip at different locations of the door are simulated and analyzed. When the door is closed, the maximum compression force of the sealing strip is located in the middle of the upper end of the door, with a compression displacement of 8.34 mm and a compression force of 4.07 N. Based on the section and its strain contour distribution at the maximum compression force, the section is optimized. The optimized section decreased the compression displacement, compression force and maximum strain by 21.10%, 82.06% and 63.09%, respectively. This indicated that the closing force of the light truck door could be significantly reduced using the optimized section of sealing strip.
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    Research and Application on Optimizing the Door Closing Sound Quality of a New Energy Commercial Vehicle
    XIE Su1 , HUANG Chaoyong1,2, GONG Hui1 , WU Xun1,2 , ZHANG Dongli1,2 , FAN Jiang1,2
    2025, 50(8): 67-71.  DOI: 10.16638/j.cnki.1671-7988.2025.008.013
    Abstract ( )   PDF (1881KB) ( )  
    This research focuses on the optimization of door closing sound quality during the development phase of the new energy commercial vehicles. By combining theoretical analysis with experimental research, it first deeply analyzes the generation mechanism of door closing sound. It explores the complex processes of vibration caused by the collision between the door and the vehicle body and propagation of sound waves, and clarifies the influence mechanisms of various components and the vehicle interior cavity on sound characteristics. Then it evaluates the door closing sound by integrating subjective and objective evaluation methods. The subjective evaluation involves scoring based on the auditory sensations of professional and ordinary personnel, while the objective evaluation relies on measuring physical parameters such as sound pressure level and frequency spectrum. Through measures such as adding damping pads to the sheet metal, softening the hardness of the door lock buffer block, and changing the door seal strip to a double-bubble tube structure, the door closing sound quality has been significantly improved. The research results provide highly valuable guidance for the development of new models of new energy commercial vehicles, and help to promote the progress of the industry in the quality of vehicle acoustics, and improve the competitiveness of the product market and user satisfaction.
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    Optimization Analysis of the Brake Pedal Feel of a Commercial Vehicle
    LIU Dongfu, WU Wen, HU Xiaoyang
    2025, 50(8): 72-76.  DOI: 10.16638/j.cnki.1671-7988.2025.008.014
    Abstract ( )   PDF (1158KB) ( )  
    The brake pedal feeling is the key indicator of the driver's subjective perception of a car, and a good pedal feeling can improve the driver's driving comfort. In this paper, combined with the problem of low braking confidence of drivers due to the soft brake pedal and long braking stroke of a commercial vehicle, the factors affecting the pedal feeling of the vacuum-assisted hydraulic braking system are analyzed. On the basis of theoretical calculations, the parameters of the key components of the commercial vehicle braking system are changed and optimized in combination with the actual situation. The relationship between pedal stroke, pedal force and braking deceleration of the original scheme and the optimized scheme is verified by the test. The test verification proves that the optimization scheme can effectively improve the pedal feeling, and the loading effect of the scheme is validated by the subjective feelings of the driver and the customer. It provides reference for the adjustment of brake pedal sense for commercial vehicles with the same braking form.
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    Optimization of Front Axle Mount Stiffness Based on ADAMS and Simulink Co-Simulation
    ZHANG Mingxu 1 , KONG Xilei1 , MA Fuhao1 , ZHANG Ziqi1 , JIA Chao2
    2025, 50(8): 77-81.  DOI: 10.16638/j.cnki.1671-7988.2025.008.015
    Abstract ( )   PDF (3164KB) ( )  
    In order to solve the cabin noise problem caused by the vibration of the main reducer of the front axle of a van, the article adopts the co-simulation of ADAMS/View and MATLAB/Simulink to optimize the stiffness of the suspension system. The previous tests show that the noise mainly originates from the meshing vibration of the reduction gear, and the vibration transmission rate between the reducer and the frame is more than 20%, which seriously affects the ride comfort. Through dynamic modeling and co-simulation, the vibration acceleration response under different mount stiffness is simulated, and the mount parameters are optimized. The simulation results show that the optimized mount system significantly reduces the vibration acceleration response, and the van noise is reduced by 50%, which effectively reduces the vehicle noise under a variety of working conditions. The study verifies the feasibility of optimizing the mount stiffness, and provides a theoretical basis and practical reference for the noise control of similar vehicles.
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    Research on Low-speed Performance Optimization of Hydraulic Phase Shifter
    LIU Qianqian1 , WU Xin2 , WANG Shaohui1
    2025, 50(8): 82-85.  DOI: 10.16638/j.cnki.1671-7988.2025.008.016
    Abstract ( )   PDF (1336KB) ( )  
    To solve the problems of low adjustment speed and adjustment noise of hydraulic phase shifter in low-speed operating conditions of the engine, this article analyzes the structure and adjustment mechanism of the phase shifter. Under low-speed operating conditions, the oil pressure is low and the fuel supply is low. Coupled with the influence of the alternating torque of the camshaft, the phase shifter produces negative pressure feedback during the adjustment process, resulting in a decrease in its performance. The scheme of adding an oil storage chamber on the outer side of the hydraulic phase shifter collects the oil discharged from the phase shifter. When negative pressure is generated in the internal oil chamber, the oil is replenished to the oil chamber through a one-way valve. Under the same testing conditions, the improvement plan improves the low-speed speed regulation performance by 30%~50% and significantly reduces the adjustment noise, which can better meet the low-speed performance requirements of the engine.
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    Testing and Experiment
    Dynamic Response Characteristics and Performance Optimization of Exhaust Valve in Scroll Compressors
    GE Mengqi1 , YANG Bin1* , ZHOU Ronghua2 , SHI Yehui3,4 , YUAN Mengli1 , GAO Feng1
    2025, 50(8): 86-92.  DOI: 10.16638/j.cnki.1671-7988.2025.008.017
    Abstract ( )   PDF (1966KB) ( )  
    Scroll compressors are widely used in refrigeration and air compression field due to their high efficiency and compact design. The exhaust valve plate, as its core component, directly affects the operating efficiency and durability of the whole machine. The purpose of the study is to explore the impact of different exhaust structures on the performance of the exhaust valve plate of scroll compressors, especially to evaluate the potential performance advantages of the exhaust valve plate equipped with buffer plate compared with traditional designs. The vibration characteristics, stress distribution and velocity changes of the valve plate under different exhaust structures are analyzed by simulation of ANSYS LS-DYNA explicit dynamics software. The performance of the exhaust valve plate with and without buffer plate during operation is studied. The results show that the valve plate with buffer plate has significant advantages in vibration amplitude and received stress. Compared with the valve without buffer plate, the vibration amplitude of the valve plate with buffer plate is smaller, the received stress is relatively low, the maximum vibration amplitude is reduced by 19%, the stress is reduced by 132 MPa, and the service life is significantly extended. The study provides a new idea for the design and optimization of the exhaust valve plate, and provides a theoretical basis for improving the performance and reliability of scroll compressors.
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    The Research of EMC Test Method of Plug-in Hybrid Vehicles
    LIU Fengyou
    2025, 50(8): 93-97.  DOI: 10.16638/j.cnki.1671-7988.2025.008.018
    Abstract ( )   PDF (1248KB) ( )  
    : In order to solve the problem of electromagnetic compatibility testing for plug-in hybrid vehicles, this paper presents a set of systematic testing methods. The research process mainly involves the analysis of vehicle operation mode, the implementation of trigger mode, the association between operation mode and signal, and the association of electric field and magnetic field test data with actual monitoring signal, so as to realize the association between test data and operation mode. The verification results show that this method can be used for traversal verification of various running modes of plug-in hybrid vehicles, and can achieve accurate location of instantaneous exceedance problems, achieve test adequacy, avoid the difference of test data in different laboratories, and simplify the difficulty of problem location. This method can be applied to the test scenarios of GB/T 18387-2017, GB 34660-2017, GB/T 18655-2018, etc., which require dynamic vehicle operation.
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    Research on Aging Resistance of Different Car-speaker Screen Designs
    ZHOU Lulu
    2025, 50(8): 98-102.  DOI: 10.16638/j.cnki.1671-7988.2025.008.019
    Abstract ( )   PDF (1970KB) ( )  
    In the current world, the ambient temperature is increasing, which raises the requirements for the aging resistance of various car parts. Coupled with the superimposed effects of light exposure, the challenge to the aging resistance of car center-mounted speakers is very severe. The mesh design of the car center-mounted speaker plays a crucial role in its aging resistance. It is necessary to study the impact of different mesh designs on the aging resistance of center-mounted speakers and select a more suitable speaker design for installation in the center position. Two kinds of xenon lamp lighting test equipment are compared in this paper, and the aging resistance of two kinds of center speakers with and without plastic support ring are studied under the same test condition. The physical properties and acoustic properties are analyzed and compared respectively. The result shows that the center speaker with plastic support ring has better aging resistance capacity and is much more suitable for IP installation.
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    Process·Materials
    Study on the Construction of Ideological and Political of Intelligent Networked Vehicle Teachers Team in Higher Vocational Colleges
    XU Xiaoyu, TIAN Gaohua
    2025, 50(8): 103-106.  DOI: 10.16638/j.cnki.1671-7988.2025.008.020
    Abstract ( )   PDF (915KB) ( )  
    With the deepening reform of vocational education in China, it is increasingly important for vocational schools to build a young political thought teachers team with professional skills as the orientation. This study aims to enhance the adaptability of vocational education by combining the specialties of the smart connected vehicle major and the development of new energy vehicles in Ganzhou city, and continuously improving the professional literacy and teaching level of young teachers in automotive intelligence and networking. It promotes the deep integration of political education and professional skills in smart connected vehicle majors, builds a young political thought teachers team with the spirit of craftsmanship as the guide, skill competitions as the driving force, and a structure that is innovative, collaborative, and well-balanced, and provides a strong faculty support to enhance the quality of technical and vocational education and training. This will drive the vigorous development of smart connected vehicle majors.
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    "Happy Learning, Good Learning, Still Learning" Classroom Based on Game Driver -Taking the Mercedes-Benz General Electrical System Overhaul Course as an Example
    LUO Ji, PAN Da, CHEN Xiaopeng, JIANG Qinglai
    2025, 50(8): 107-111.  DOI: 10.16638/j.cnki.1671-7988.2025.008.021
    Abstract ( )   PDF (2261KB) ( )  
    With the progress of society, higher requirements are put forward for deepening the integration of production and education and comprehensively improving the quality of personnel training. The course team is based on the typical tasks of after-sales service mechanical and electrical maintenance posts of Mercedes-Benz cars and relies on the rich hardware and software resources of Daimler China vocational education program. The introduction of Mercedes-Benz digital headlights, synthetic gas detection method, SPX-ROBINAIR air conditioning maintenance and other new technologies, new processes, new equipment, to achieve professional upgrades. Based on the school-enterprise cooperation of Daimler China vocational education online platform,Mercedes-Benz workshop information management system, and municipal quality online open courses, digital transformation is realized. Based on the game drive, create a "happy learning, good learning, still learning" classroom, centering on the students' main body, first stimulate the interest in learning, then promote the generation of professional ability, and finally enjoy the sense of learning, so as to achieve the learning goal. Practice has proved that the curriculum teaching based on the main line of "happy learning, good learning and still learning" has effectively stimulated students' classroom enthusiasm.
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    Analysis of the Ideological and Political Evaluation System of Online Excellent Courses of Higher Vocational Automobile Repair Major
    WANG Lei, ZHAO Liang
    2025, 50(8): 112-115,131.  DOI: 10.16638/j.cnki.1671-7988.2025.008.022
    Abstract ( )   PDF (1094KB) ( )  
    The evaluation of the ideological and political effect of the course for the auto repair major needs to combine its professional practice and technology. At present, the evaluation method of curriculum ideology and politics still focuses on process evaluation and subjective evaluation. For the online fine courses of higher vocational automobile repair major, the difficulty of evaluation is significantly increased due to the lack of face-to-face practical operation guidance. The particularity of auto repair major lies in that it not only requires students to master theoretical knowledge, but also emphasizes the skillful application of automobile maintenance skills and the establishment of professional ethics. Due to the limitations of online teaching, it is difficult to use traditional ideological and political evaluation methods for accurate and effective evaluation.Therefore, this paper aims to construct a set of ideological and political evaluation system for online high-quality courses of automotive engine electronic control technology, and design the corresponding evaluation scale, and make use of the convenience of online high-quality courses to ensure the comprehensive coverage of ideological and political courses in cultivating students' professional skills and professional literacy
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    Exploration and Implementation of Teaching Model "Three Courses and Five Education" -Taking the Curriculum of New Energy Vehicle Fault Diagnosis Technology as an Example
    SONG Kaikai1 , LI Shujin1 , ZHAO Donghui2
    2025, 50(8): 116-121.  DOI: 10.16638/j.cnki.1671-7988.2025.008.023
    Abstract ( )   PDF (3260KB) ( )  
    In order to highlight the significant characteristics of vocational education in the training of practical application ability, give full play to the main role of students and teachers in the teaching process. This paper takes the motor drive system fault diagnosis project in the New Energy Vehicle Fault Diagnosis Technology course as the carrier, reconstructs the teaching content and carries out diversified teaching design. When carrying out the "three classroom" cycle teaching mode of teaching, practice, and innovation, the "five educations" of moral education, intelligence education, ability education, technology education, and art education are integrated into the entire teaching process, promoting the comprehensive development of students. The implementation of this model effectively promotes the hierarchical advancement of students' vocational abilities and the overall improvement of their professional qualities, providing reference for the teaching reform of similar courses
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    Reform Exploration of Theoretical Course Teaching for Wheeled Armored Vehicles under the OBE Concept
    WANG Jingyue, LI Baishu, LI Meihua
    2025, 50(8): 122-126.  DOI: 10.16638/j.cnki.1671-7988.2025.008.024
    Abstract ( )   PDF (1108KB) ( )  
    Aiming at the problems existing in the traditional teaching of wheeled armored vehicle theory course, such as case lag, single content, uninnovative method and lack of curriculum ideology and politics, this paper proposes that the design of curriculum teaching objectives should be studentcentered and demand-oriented, and probes into the teaching reform scheme of wheeled armored vehicle theory course based on outcomes based education (OBE) concept. On this basis, the construction of a new talent training system, the construction of multi-dimensional course content, the establishment of process evaluation system and the school-enterprise cooperation model. Through the reform, we will further improve the teaching quality and cultivate application-oriented professionals with high quality and professional skills.
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    A Brief Discussion on the Application of "Dual-element Structure Teacher Group" in Teaching Ability Competition -Taking the Participation of New Energy Vehicle Technology Major as an Example
    TIAN Jinxin, LV Xiangling, TIAN Kangkang, GUO Shuqing
    2025, 50(8): 127-131.  DOI: 10.16638/j.cnki.1671-7988.2025.008.025
    Abstract ( )   PDF (1507KB) ( )  
    This paper deeply analyzes the application of "dual-element structure teacher group" in the teaching ability competition of vocational college skills competition. Firstly, the concept and origin of "dual-element structure teacher group" are described, which lays a good foundation for its application in teaching ability competition. Then, focusing on the new energy automobile industry, it elaborates the exploration attempts in the process of participating in the competition from five aspects: clear competition purpose, selection of competition content, innovation of teaching mode, construction of multiple evaluation, and integration of curriculum ideology and politics. Finally, the paper deeply reflects on the problems in the process of the competition, and puts forward corresponding solutions, such as recording video micro-lessons, developing loose-leaf textbooks, etc., which provides new ideas for improving the teaching quality of vocational colleges and cultivating high-quality technical talents.
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    Standards·Regulations·Management
    Configuration Changes Decision-Making Model Based on Knowledge Graph
    ZHANG Guanhua, JI Leilei, CHEN Zhoulin
    2025, 50(8): 132-137.  DOI: 10.16638/j.cnki.1671-7988.2025.008.026
    Abstract ( )   PDF (1416KB) ( )  
    To cope with intense market competition, automotive enterprises need to constantly revise product configuration schemes, offering a more diversified range of configurations to meet users' personalized needs. Configuration changes have a broad and complex impact to part engineering changes. This paper innovatively proposes a new model for configuration changes management. By using the multi-structured and multi-featured databases accumulated by enterprises in change management and combing application of data mining techniques, it develops a configuration change decision-making model based on a knowledge graph. Utilizing this model, through intelligent analysis of product configuration plans and bill of material (BOM), it automatically identifies functional characteristics and parts involved in the changes, generates configuration combinations automatically, and recommends part engineering change proposals automatically. It enhances the efficiency and accuracy of configuration changes.
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    The Research on Route Selection Problem of Mail-transportation Integration Based on Urban and Rural Public Transport
    YANG Jiahao1 , LIU Xinrui2 , CHEN Limei1
    2025, 50(8): 138-144.  DOI: 10.16638/j.cnki.1671-7988.2025.008.027
    Abstract ( )   PDF (1751KB) ( )  
    To address the utilization of idle transportation capacity based on existing resources such as rural passenger transport stations and bus routes, and to meet the needs of expanding express parcel transportation, improving the operational conditions of passenger transport enterprises, and promoting the development of rural logistics, the shipping and mailing route selection problem (SMRSP) is proposed. The characteristics of integrating shipping and mailing services in urban-rural bus transport systems are analyzed, and the optimization objectives are clarified. A multi-objective optimization model is established to minimize logistics costs and transportation time, which is then converted into a single-objective model using the linear weighting method. An improved ant colony algorithm is designed, and MATLAB is used to solve for the optimal order loading plan. Through a case study involving 30 stations, the accuracy of the model and the effectiveness of the algorithm are demonstrated.
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    Exploration and Practice of Digital Management of Vehicle Manufacturing Project Schedule
    JIANG Xianmao
    2025, 50(8): 145-148.  DOI: 10.16638/j.cnki.1671-7988.2025.008.028
    Abstract ( )   PDF (1202KB) ( )  
    Schedule management is to ensure that the project is carried out in an orderly manner within the established time frame, and to avoid the cost increase and efficiency reduction caused by time delay. Digital transformation is of great significance for improving work efficiency, improving response speed, reducing costs and optimizing resources. This paper takes the new project schedule management of vehicle manufacturing as the research object, and conducts research and practice from three aspects: project schedule management digital scheme framework design, model construction and automation tool development. The digital management scheme, calculation model, automation tool development and application strategy proposed provide theoretical basis and practical guidance for vehicle enterprises to realize efficient and intelligent project schedule management.
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    Research on the Scenarios Sorting Method of Digital Transformation in Automobile Research and Development -Take the Vibration Reduction and Noise Reduction of the Vehicle Body Floor Panel as an Example
    XUE Jun
    2025, 50(8): 149-153.  DOI: 10.16638/j.cnki.1671-7988.2025.008.029
    Abstract ( )   PDF (1766KB) ( )  
    Digital scenarios sorting and data application are critical challenges a challenge in the realization of the digital transformation. this article establishes a method for sorting out the digital scenarios of lean research and development, with personnel, technology, and process as the three elements and team creation, knowledge sorting, design, integration, verification, and data application as the six specific processes of the digital scenarios, then we can obtain comprehensive knowledge elements and data elements, and do the data modeling analysis and data value mining. It has certain guiding significance for the implementation of the digital transformation of automobile research and development.
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    Analysis of Application Research and Development Trends of Smartphones in Driver Behavior Detection
    LI Xuran
    2025, 50(8): 154-159.  DOI: 10.16638/j.cnki.1671-7988.2025.008.030
    Abstract ( )   PDF (1185KB) ( )  
    Recent research has demonstrated the feasibility of detecting abnormal driver behavior using only a smartphone, leveraging the sensors embedded in modern devices. To further advance driver behavior detection technologies and promote the democratization and widespread use of such systems, this paper classifies smartphone-based driver behavior detection methods from the perspectives of sensor solutions and detection algorithms. It summarizes and highlights potential issues that need attention during the process of hazard warning and detection. Moreover, it discusses the potential future of integrating this technology with path navigation and planning systems, while also suggesting that issues related to data privacy protection and detection accuracy require further research. Smartphone-based driver behavior detection and analysis technologies exhibit high accuracy and reliability, and are expected to have broader applications in the future.
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