The article takes electric vehicles as the research object, proposes a new type of parallel claw pole hybrid excitation motor electromagnetic structure, and optimizes its design and simulation. This motor combines the characteristics of electric excitation motor and permanent magnet motor excitation, which can effectively regulate and control the air gap magnetic field, and improve the performance of the motor. This article optimizes the overall structure of the parameters required for the motor, analyzes the magnetic circuit through finite element analysis, and obtains the optimal solution for parameters such as stator and air gap.Through torque simulation of the entire motor, the final performance of the motor is tested, and the final solution for the motor to meet the required requirements is obtained. Through this study, an efficient and stable motor solution can be provided for new energy electric vehicles and tricycles.

Based on the lightweight talent cultivation competition in vocational colleges, this paper constructs a "competition-driven teaching" industry-education integration model and develops a battery electric racing car with a curb weight of 193 kg, which is 8% lighter than the initial proposal. Through precise selection of the "Three-Electric" (battery, motor, electronic control) systems, lightweighting is achieved using a 4130 steel tube space frame and carbon fiber body. The suspension system is optimized using ADAMS software, reducing the range of toe angle variation on the front wheels from 1.36°to 0.4°. ANSYS simulations demonstrate a maximum stress of 154.88 MPa in the frame torsional operating conditions and a first-order modal frequency of 29.49 Hz to avoid excitation interference. Physical vehicle testing confirmes a top speed of 70 km/h, 35 km range, 3 m turning radius, and stable 20 km/h emergency braking without deviation. The research validates the engineering feasibility of lightweight technology, proposes an integrated technical pathway of "simulation-testing-manufacturing" for new energy vehicle, and establishes a replicable industry-education collaborative practice framework.

The article addresses market feedback issues, based on real-world usage scenarios of users, it establishes subjective and objective evaluation targets for improving the comfort of a P1-39# electric vehicle, and a preliminary analysis of potential problems in handling stability and comfort. During the tuning process, analyses and adjustments are conducted on spring scheme selection, damper matching, seat improvement solutions, and steering portability tuning. After tuning, the vehicle comfort showes significant improvement compared to the pre-optimization state, achieving a better balance between handling stability and comfort. While handling stability slightly decreases, it remains superior to competing vehicle. Furthermore, through post-project review, it provides some reference methods for setting target values and tuning in future vehicle models.

With the rapid development of the new energy vehicle industry, the safety of power batteries has become a bottleneck restricting the industry's development. This article reviews the relevant research on the causes and processes of thermal runaway in lithium-ion batteries, discusses the mechanisms of thermal runaway triggered by different factors such as electrical abuse, mechanical abuse, and thermal abuse, and describes in detail the three stages of triggering, heat release, and explosion of thermal runaway, revealing the evolution process of thermal runaway. Based on this, the targeted improvement measures for the thermal safety of lithium-ion batteries are analyzed, including battery design optimization and different improvement ideas for thermal management systems. The realization of these improvements will help to enhance the overall safety and reliability of new energy vehicles.

This paper proposes an automated testing scheme based on Python and PyVISA to address power-level testing requirements for new energy vehicle core components. The system integrates mainstream equipment (including Keysight 34980A and power analyzers) to establish a multi-protocol compatible testing platform that is compatible with controller area network (CAN), RS485, etc., enabling streamlined operations for data acquisition, device control, and result analysis validations demonstrate that the solution enhances testing efficiency by 50%, achieves an error rate below 4%, and has been successfully implemented in the development of a 4.5T pure electric light truck, reducing the testing cycle by 50%. This research provides an efficient and reproducible system methodology for core component testing in new energy commercial vehicles.

To address the issue of commercial vehicles being prone to rollover under lateral disturbances, this paper analyzes vehicle dynamic data (such as acceleration, angular velocity, roll angle, etc.) to monitor the vehicle state in real time. A vehicle model is established in a dynamic simulation environment, and a vehicle rollover warning system is developed based on the vehicle's centerof-mass sideslip angle, the lateral-load transfer rate (LTR), and the time to rollover warning (TTRW) according to the rollover boundary tested. Considering driver habits, a two-stage warning mode using indicator lights and buzzers is adopted to establish the vehicle rollover warning system model. Simulation results demonstrate that the fully loaded vehicle can trigger the indicator light warning more than 1 s in advance and activate the buzzer more than 0.5 s in advance, while avoiding frequent false alarms. This lays the foundation for subsequent vehicle lateral stability control.

With the rapid development of electrification technology in the commercial vehicle sector, the electric drive axle system, as an efficient and energy-saving driving method, has gradually attracted attention. This article conducts configuration research, matching calculation and dynamic simulation analysis for semi-trailers equipped with electric drive axles. Firstly, the integration mode,layout position of the electric drive axle and its comparison with traditional fuel-powered semitrailers are discussed, and the influence of different configurations on vehicle performance is analyzed. Secondly, based on the parameters and performance requirements of conventional semitrailers, matching calculations and designs are carried out, and the dynamic model of the semi-trailer is established based on the Cruise software. Through simulation analysis, the influence of the configuration of the electric drive axle on the vehicle's acceleration performance, climbing performance and energy consumption is studied. The results show that the reasonable configuration of the electric drive axle can enhance the dynamic performance of the semi-trailer and reduce energy consumption at the same time. In addition, suggestions for optimizing the configuration are put forward, providing theoretical basis and technical support for the application of electric drive axles in semi-trailers. The research results are of great significance for promoting the electrification development of semi-trailers.

Fatigue durability study of chassis system based on whole-vehicle road test field load data, and a whole-vehicle road load data extraction method from road data acquisition processing is proposed. Taking the lateral stabilizer bar as an example, the wheel six force signals under typical road conditions are collected, and the life prediction is performed by finite element modeling and durability simulation. The results show that the predicted fatigue life of the lateral stabilizer bar is 58 824 cycles, with an error of 6% from the test result (62 587 cycles), and the fracture location is consistent, which verifies the accuracy of the simulation model and method. The simulation and analysis method based on the road load data can effectively predict the fatigue life of components and provide a reliable basis for the durability of the chassis system.

This paper focuses on aluminum alloy automotive protection devices. A finite element model of the rear under-run protection device is constructed and verified by comparing with the experimental results. Firstly, the structure of the rear under-run protection device and the research status at home and abroad are introduced. Then, the tests of the rear under-run protection device and the benchmarking of the simulation model are carried out to verify the accuracy of the model. On this basis, the rear under-run protection device is optimized. The thicknesses of the crossbeam and the connecting bracket are selected as variables, and the Latin hypercube sampling method is used. As a result, a weight reduction of about 10% is achieved while meeting the national standard requirements, and the cost is reduced. Finally, the integrated design of the front and rear under-run protection devices is explored. The test differences between the front and rear under-run protection devices are compared, providing a research direction for the dimension design of the front under-run protection device. The research results provide a reference for the design optimization and integrated development of aluminum alloy protection devices.

In a certain off-road tire crane project, the swing bracket designed with the original welded forming process experienced fatigue fracture during the whole machine test due to factors such as strength and welding defects. To address the bracket failure, the project team utilized topology optimization technology to conduct iterative optimization on the bracket structure while keeping the connection interfaces of the frame and axle unchanged, aiming to obtain the material distribution and force path of the structure. Based on the integral casting process, the swing bracket design was optimized. Eventually, the optimized swing bracket design, after being verified through simulation analysis, bench tests, and reliability validation, achieved a weight reduction of 54 kg, with a weight reduction ratio of 19.4%, and also accumulated experience for the application of topology optimization technology in the design and development of similar products.

This article combines the motion characteristics of the lower control arm to design a lightweight suspension lower control arm for a certain automobile. Firstly, a lower control arm model is established, and its stress state under typical extreme operating conditions is determined through finite element analysis. Then based on the stress state analysis, the design redundancy of the lower control arm is determined. The design redundancy of the lower control arm is evaluated. With the minimization of the lower control arm’s mass as the optimization objective and the thickness of the upper and lower plates as design variables, topology optimization is conducted. Finally, based on the topology optimization results, lightweight design of the lower control arm is implemented through the design concept of thinning and digging holes. The results show that the optimized lower control arm structure meets the performance requirements in terms of strength, buckling performance, and dynamic characteristics, and has a good weight reduction effect.

During the road tests of a certain pure electric multi-purpose vehicle (MPV) model in the research and development stage, the vehicle emittes a distinct 480 Hz beeping "whooshing" sound under acceleration, coasting and constant speed operating conditions, indicating poor sound quality inside the vehicle. Through spectral analysis, it is confirmed that there is a distinct resonant band in the 480 Hz frequency band for the noise inside the vehicle under all three operating conditions. Through filtering and playback, it is determined that this resonance band is the fundamental cause of leading to the "whooshing" sound. Through investigation, the issue is traced to the excitation of the drive motor's constrained mode resonance during vehicle operation. Ultimately, by optimizing the installation structure of the drive motor, on the one hand, the rigidity of the installation bracket is enhanced, and on the other hand, the original two-point installation method is improved to threepoint installation and fixation to solve the noise problem. After optimization, the constrained mode frequency of the drive motor increases from 480 Hz to 580 Hz, significantly improving the inside the vehicle "whooshing" noise and meeting the design target requirements.

With the continuous improvement of national standards and regulations, as well as the increasingly stringent requirements of end-users in the market for the lightweight performance of semi-trailer tractors, this paper, aiming to further enhance the loading capacity and operational efficiency of semi-trailer tractors, relies on the finite element analysis software HyperWorks to conduct targeted static strength analysis, static stiffness analysis, and free modal analysis of semi-trailer tractors under multiple working conditions. Based on in-depth analysis of the free modal characteristics of the frame and the safety factor stress nephogram, it accurately identifies the lightweight optimization technical paths for the components related to the frame assembly. On the premise of strictly ensuring that the structural strength meets the standards, through eliminating redundant designs and optimizing structural parameters, it finally achieves a weight reduction of approximately 18% for the crossbeam, with an absolute weight reduction of 12.5 kg, effectively fulfilling the core goal of reducing the overall curb weight of the vehicle.

As a core component of the automotive electrical system, the reliability of the terminal crimping points in automotive wire harnesses directly relates to vehicle performance and driving safety. Conducting research on the fatigue strength of terminal crimping points holds significant engineering value for ensuring the stable and reliable operation of automotive wire harnesses during long-term service. This paper adopts a method combining vibration tests, fatigue strength tests, and working condition simulations. Targeting common typical scenarios in the process of vehicle driving, such as acceleration, deceleration, turning, and bumping, it constructs a terminal simulation model that conforms to actual operating conditions. With the help of ANSYS software, it simulates and analyzes the vehicle's movement process, focusing on studying the displacement changes, stress distribution, and fatigue strength characteristics of the terminal crimping points. The research reveals that under normal vehicle driving conditions, the stress level at the terminal crimping points is low, and the rate of fatigue damage accumulation is slow; however, under bumpy working conditions, the stress at the crimping points rises sharply, leading to a significant acceleration in the rate of fatigue damage accumulation. The research results can provide theoretical basis and technical support for the design optimization, processing technology improvement, and manufacturing quality control of automotive wire harnesses.

Due to the relatively limited research on tank rollover protection devices both domestically and internationally, this paper focuses on the research of testing methods for the strength of tank rollover protection devices. Based on the passenger vehicle roof static pressure test and 45-degree inclined pressure test, two testing methods are modeled. Finite element analysis is then conducted on these two testing methods using finite element simulation software. Finally, a comparison is made between the finite element simulation results of the two testing methods in terms of deformation and stress. The comparison of the final test results shows that the 45-degree inclined pressure test is more effective than the roof static pressure test in assessing the strength of tank rollover protection devices.

Given the problems of insufficient sealing, low efficiency and high cost in traditional spot welding for the roof of vehicle bodies, this paper takes a certain mid-sized sport utility vehicle (SUV) model as the object and compares and analyzes the process differences and comprehensive benefits of laser brazing and traditional spot welding between the roof and the side panels. The results show that laser brazing for the roof and side panels reduces the processes of sealant application and trim strip assembly, simplifies the process flow, and increases the welding efficiency by 52%. Laser brazing forms continuous and aesthetically pleasing weld seams, significantly improving the reliability of the body-in-white performance and the flatness of the appearance. In terms of economic benefits, laser brazing reduces the weight of each vehicle by 0.67 kg and lowers the direct material cost by 49 yuan. The research indicates that laser brazing outperforms traditional spot welding in terms of process simplicity, production efficiency, light weighting, cost control, and vehicle body performance, providing theoretical support and practical reference for the upgrading of vehicle body manufacturing processes.

This article focuses on the automatic calculation of the coordinate system of a horizontal machining center, and elaborates in detail on the specific methods and steps for realizing the automatic calculation of the coordinate system through the nesting of macro programs. At the same time, a nested macro program with wide applicability is designed to deal with diverse machining scenarios. Verified by actual production, the nested technology of the macro program for automatic calculation of the coordinate system has significantly improved the efficiency of production preparation before machining, effectively enhanced the machining accuracy, greatly reduced the problem of error accumulation caused by human factors, and provided a powerful guarantee for the efficient and high-quality machining of products.

To implement the vision of "New Engineering" construction and meet the new requirements of engineering education professional accreditation, this paper takes the curriculum of Mechanical Engineering Control Basic as the research object and explores a intelligent curriculum development approach empowered by emerging technologies such as artificial intelligence (AI), digital resources, and knowledge graphs (KG). Guided by the vision of "graph-driven, AI-powered, precision teaching, and continuous optimization", a intelligent instructional system that integrates KG, intelligent learning support, differentiated instruction, and adaptive feedback is establishes. The curriculum reform follows a four-stage methodology: graph driven－AI integration－closedloop implementation－data-driven validation. The graph development includes the tease classification of curriculum content, modeling of semantic relations between key nodes, hooking up graph visual deployment and instructional resource, achieving dynamic linkage between knowledge structures and learning tasks. AI technologies are applied to analyze student learning behavior collection, track cognitive pathways, personalized resource recommendations, and identify misconceptions, provide data-driven learning situation judgment and teaching strategy support for teachers. A teaching experiment is conducted during the 2023－2024 academic year involving more than 240 students majoring in mechanical. Results show a 94% curriculum satisfaction rate, a 35% increase in frequency of classroom interaction, and a 92% completion rate of simulation experiments. Students demonstrate significantly enhanced competencies in control system modeling and project practice. Teaching practice shows that this curriculum reform has effectively enhanced students' engineering application ability and autonomous learning ability, promoted an overall leap in the quality of talent cultivation, and formed replicable and scalable experience in the construction of intelligent curriculum, which has good value for promotion and application.

In order to solve the problems of limited offline hours and single teaching form in the traditional teaching of Engineering Software Technology course, a project-driven course teaching reform scheme is designed from three aspects: the selection and design of course project-driven content, the organization and implementation of teaching process and the formulation of course assessment methods. Two parallel teaching classes are selected for comparative practice. The excellent rate of curriculum examination results and curriculum design in the reform practice class is higher than that in the traditional teaching class. Tracking the employment situation of the two classes, the employment rate of the reform practice class is also higher than that of the traditional teaching class. The results show that the students' learning enthusiasm, classroom participation, practical ability, teamwork ability and comprehensive ability are greatly improved, and the teaching effect of the course is significantly improved. The practical method of curriculum reform provides reference and reference for the teaching reform of subsequent automobile professional courses.

This paper focuses on the curriculum of Automobile Engine Structure and Maintenance in higher vocational automotive major, delving into the integration model and practical paths of "post, class, competition, and certificate" convergence with curriculum-based ideological and political education. Analyzing the current teaching situation and combining the demands of enterprise positions, skill competition standards, and vocational qualification certificate requirements, proposes five paths for this curriculum reform: reconstructing the curriculum content, establishing an ideological and political education main thread, innovating the curriculum teaching mode, creating a diversified evaluation system, and building digital teaching resources. The aim is to cultivate automotive professionals with solid professional skills and good professional ethics, providing a valuable reference for the reform of vocational education curriculum. In the process of practical application, significant achievements have been made, with a notable improvement in the attainment of goals and remarkable results from the collaborative education mechanism, achieving the common growth of teachers and students.

To fully leverage the construction of modern automotive industry colleges and integrate the concept of modern industry college construction into the entire process of talent cultivation, a new model of talent cultivation is innovated to further ensure the quality of automotive applicationoriented talent. Through the approach of "bringing enterprises into education", in-depth exploration and research have been conducted in aspects such as the reform of the "3+1" talent cultivation model, dynamic optimization of the curriculum system through school-enterprise cooperation, multi-disciplinary integration, construction of a high-level teaching staff, school-enterprise joint talent cultivation management mechanism, internship and training bases, and the construction of a production-academia-research-application platform. Certain research achievements have been obtained, further implementing the construction of modern industry colleges and effectively avoiding problems in traditional cultivation methods such as the disconnection between the curriculum system and production reality, insufficient practical teaching, single talent cultivation, and lack of management systems. Through deepening the practice of industry college construction, the talent cultivation positioning of automotive-related majors becomes clearer, and the quality of talent cultivation is further improved, ultimately achieving further application, promotion, and demonstration.

The construction of curriculum ideological and political is an important measure to achieve the fundamental task of cultivating morality and talents. In order to understand the research status and trends of curriculum ideological and political for automotive majors, 298 papers are selected from CNKI as the research object, and the CiteSpace software is used to visualize and analyze information such as annual publication volume, authors, institutions, and keywords. The results indicate that the research of curriculum ideological and political for automotive majors has entered a mature stage, and the number of research scholars and institutions is gradually increasing,but the cooperation between them is not close. In addition, curriculum ideology and politics play a role in promoting teaching reform. The research trend presents characteristics such as deep integration, close integration with industry demand, innovative methods, systematization of ideological and political element library, and improvement of evaluation system. By sorting out the research status and trends of curriculum ideological and political for automotive majors, it can provide reference for subsequent research and construction.

In response to the problems existing in the graduation course model, a wide area flexible graduation course elective innovation mode integrating multiple majors has been established in this paper. Deep cooperation between schools and enterprises, in collaboration with graduation supervisors, jointly developed a graduation course module of "one person, one case, one person, two courses", analyzing the types and methods of teaching for four mechanical majors, as well as sample combinations of graduation courses. Through the implementation of graduation courses for the mechanical and vehicle groups, students' initiative and pertinence in learning courses have been enhanced, and the professional knowledge system of students' employment positions has been expanded to meet the demand of enterprises for applied talents. Cross disciplinary wide area flexible elective courses are more suitable for the diversity and variability of graduates' employment enterprises, deepening the three in one training model of schools, enterprises, and mentors.

Against the backdrop of new productive forces accelerating the reshaping of the new energy vehicle industry, the transformation toward intelligence and greenization is placing subversive demands on the knowledge, skills, and qualities of maintenance talents. This research focuses on the core contradiction where talent cultivation lags behind technological iteration. Based on the connotation of new productive forces as "innovation-driven, digitalized, and high-quality," it systematically analyzes their impact on industrial technological changes and talent demand. Addressing structural deficiencies such as outdated curricula, disconnection between education and industry, and mismatched capabilities, the study proposes a "CPIES" five-dimensional collaborative cultivation framework with a "technology-sensitive curriculum model" at its core. Through distinctive designs such as vehicle-cloud integrated training and virtual-real fusion for hazardous scenarios, a new paradigm for cultivating maintenance talents with "technical comprehensiveness+digital literacy+innovative adaptability" is established. Implementation analysis shows that this model shortens the curriculum update cycle, improves the mastery rate of core skills, and enhances enterprise satisfaction, providing an effective path for vocational education to respond to the needs of new productive forces|.

The article aims to explore the construction of a virtual simulation course in Automotive Design based on computer aided engineering (CAE) analysis through university-enterprise collaboration, with the goal of enhancing the practical skills and innovative thinking of students majoring in vehicle engineering. By integrating teaching case models from the domestic automotive industry, refining teaching tasks and syllabi, and strengthening the application of independent CAE technology, a new teaching model has been developed. The practical results demonstrate that this course effectively improves students' practical abilities, teamwork skills, and professional expertise, while also fostering a sense of pride and awareness regarding the domestic automotive industry. This research provides new insights for the reform of automotive engineering education and holds significant importance for cultivating high-quality vehicle engineering talent.

As artificial intelligence (AI) becomes increasingly deeply involved in and transforming the world, the pattern of social division of labor among workers will gradually be changed. This trend puts forward new requirements for the knowledge, ability and quality of engineering talents, and urges the reform of curriculum system and teaching mode. The training objectives should focus on cultivating innovative capabilities and quality development to meet societal needs in the AI era. The restructuring of curricula must integrate interdisciplinary knowledge to enhance students' innovation capacity, foster their skills in applying and developing AI technologies, and strengthen education in AI and engineering ethics. The transformation of teaching methodologies should leverage AI and other emerging technologies, capitalize on the advantages of reverse project-based learning, provide personalized and customized training models for engineering students, and create flexible learning and practical scenarios. This paper offers insights for cultivating innovative engineers in the AI era who are committed to serving humanity.