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About the Journal
1. Basic Information
- Journal Title: Vehicle & Power Technology
- Former Title: Acta Armamentarii – Tank, Armoured Vehicle and Engine Volume (renamed to the current title officially in 2002)
- Founded: April 1979
- Publication Frequency: Quarterly (4 issues per year)
- Competent Authority: China Association for Science and Technology
- Sponsor: China Ordnance Society
- Editorial & Publishing: Editorial Department of Vehicle & Power Technology
- Printer: Beijing Kexin Printing Co., Ltd.
- Distribution Scope: Open distribution at home and abroad
- Domestic Distribution: Beijing Newspaper and Periodical Distribution Bureau
- Subscription: Post offices nationwide
- ISSN: 1009-4687
- CN: 11-4493/TH
- Domestic Postage Code: 2-535
- Price: CNY 12.00 per copy
2. Contact Information
- Address: Beijing Institute of Technology, No.5 Zhongguancun South Street, Haidian District, Beijing
- Postal Code: 100081
- Tel: (010) 68911172, 83808601
- Fax: (010) 68911172
- E-mail: bgtkcd@126.com; consultant@noveri.com.cn
- Website: http://BGTK.chinajournal.net.cn
3. Indexing & Inclusion
- China Journal Full-text Database: Included
- Chinese Science and Technology Journal Database: Included
- Wanfang Data – Digital Journal Group: Full-text online access
- China Academic Journal (CD Edition): Registered journal
- Excellent Journal for Implementing CAJ-CD Standards
- Partner of China Post Reading Network (www.183read.com)
4. Copyright Statement
- The journal authorizes China Academic Journal (CD Edition) Electronic Publishing House to reproduce, compile, distribute and disseminate the full texts of journal articles digitally on CNKI and its series of database products.
- Full texts are available online via Wanfang Data – Digital Journal Group, and included in the Chinese Science and Technology Journal Database and China Post Reading Network.
- The remuneration paid by the journal covers authors’ copyright royalties and network service fees.
- Submission of manuscripts to the journal shall be deemed acceptance of the above statement.
5. Journal Features
- Specialization: Focused on vehicle and power technology covering a wide range of research topics.
- Authority: Sponsored by authoritative industrial institutions with sound academic influence.
6. Instructions for Authors
- Submission Channels: Manuscripts can be submitted via the official journal website or designated email addresses.
- Manuscript Requirements: Manuscripts shall comply with journal formatting standards and feature originality and academic value.
- Peer Review Process: Double-blind peer review is adopted to guarantee fairness and objectivity.
- Review Cycle: Normally 1–3 months, subject to individual manuscript conditions.
ASTSMC-Based Control Strategy for Active Front Steering in Steer-by-Wire Systems
LIU Wenlong;ZHANG Xin;Sliding mode control is widely used in steer-by-wire systems due to its strong robustness, but the accompanying chattering issue has not been effectively resolved. To mitigate the inherent chattering problem in conventional sliding mode control and further enhance the handling stability of vehicles during steering, this paper proposes a novel control strategy based on an adaptive super-twisting sliding mode control that takes into account both yaw rate and sideslip angle. An ideal variable transmission ratio curve for the steer-by-wire system is also designed. Finally, a simulation model of the steer-by-wire system was built using Simulink and Carsim. Co-simulations were conducted under various working conditions and road adhesion coefficients to compare the control effects of mechanical steering, variable transmission ratio control, sliding mode control, adaptive sliding mode control, and adaptive super-twisting sliding mode control. The simulation results demonstrate that adaptive super-twisting sliding mode control achieves the best performance, effectively suppressing chattering while significantly improving vehicle handling stability.
Research on Braking System Design of 5t Loader Machine
WANG Peili;LI Shiquan;JIN Lianbing;SUN Meng;ZHAN Lulu;Regarding the 5-ton loader with a maximum speed of 60 km/h under the trend of high-speed development, this article compares three current national standards for braking and sets the design goal of a braking distance of ≤9 m at an initial speed of 30 km/h and the ability to park on a 25 ° slope. Theoretical derivation of driving braking deceleration, front and rear axle braking force distribution coefficient, and braking torque is completed through the formula of mechanical equilibrium, and the stable braking condition parameters for the front axle to lock first under the condition of no ABS are determined; Simultaneously completing the force analysis and braking torque calculation of the up and down slope parking brake provides a practical theoretical reference for the forward design of this type of high-speed loader without ABS braking system.
Analysis of High-Speed Roaring Sound of Electric Drive System ff New Energy Vehicles
HE Chongguang;LIU Zhou;LÜ Yao;PENG Bingrong;Liang Jiajia;XU Wenling;To address the rumbling noise issue occurring in an 8-pole 48-slot electric drive system of new energy vehicles under high-speed operation,numerical analysis and experimental validation were conducted using Siemens LMS acoustic acquisition software and Fluent fluid simulation software.Through LMS real-vehicle testing and subjective evaluation,it was confirmed that the rumbling noise was primarily caused by first-order noise.Combining with the noise generation mechanism,it was inferred to originate from poor rotor dynamic balance.Fluent simulation of internal oil flow revealed that some coolant entering the rotor accumulated in internal corners without effective drainage,impairing rotor dynamic balance.Based on this,CATIA 3D modeling software was employed to optimize rotor structure by adding oil drainage grooves and radial oil discharge channels.Improved fluid simulations demonstrated no significant oil retention within the rotor.Real-vehicle tests with the optimized rotor showed complete elimination of rumbling noise.The research findings provide valuable references for analyzing and optimizing first-order noise and its harmonic frequency anomalies in electric drive systems of new energy vehicles.
Vibration Isolation and Noise Reduction for On-board Power Equipment
YOU Jian;CHEN Changyi;SONG Kai;ZHANG Linlin;SUI Chuanjian;CHANG Jian;To solve the problem of vibration isolation and noise reduction for on-board power equipment,the research on primary physical sound source,transfer path analysis and structural dynamic characteristic was argumented and focused on. Applicable scheme on acoustic insulation,vibration isolation,noise elimination,sound absorption,shielding was proposed,design refinement for air intake system,exhaust system,acoustic enclosure was carried out. The result showed the noise level of the on-board power equipment was effectively reduced. Before improvement,the noise grade of the on-board power equipment was 72. 0 dBA,after improvement the noise grade was 67. 5 dBA,the noise reduction difference was 4. 5 dBA. This research could effectively solve the problem of vibration isolation and noise reduction for on-board power equipment, providing new means for improving comfort for vehicle environment.
Dark Environment Image Enhancement Based on YOLOv11n
XIAO Lifu;CHEN Ke;ZHANG Li;With the rapid development of intelligent driving technology,image recognition in dark environments has become a key technical challenge.To address issues such as insufficient illumination,low contrast,and significant noise in images under nighttime or low-light conditions,which lead to decreased target detection accuracy,this paper proposes an improved algorithm based on YOLOv11n.By introducing the Light-up Cross-Attention(LCA) module,the feature interaction between luminance and color branches is enhanced,improving detail capture capability.Combined with the Adaptive Feature Enhancement(AFE) module,multi-scale contextual information fusion is optimized,boosting the model's adaptability to complex scenes.Additionally,a lightweight DualConv structure is adopted to reduce the number of parameters while maintaining feature extraction capability.Experimental results on the ExDark dataset show that the improved model achieves significant improvements in precision,recall,and mAP,effectively enhancing target detection performance and stability in dark environments.This provides technical support for the reliable operation of intelligent driving systems in low-light conditions.
Nonlinear Dynamic Analysis of Faulted Rotor Systems
Wang He;Zhang Hongyuan;Li Dongsheng;Sun Hongyun;Chang Zhuan;By establishing a dynamic model of a rolling bearing-rotor system with inner race faults,the fault characteristics and formation mechanisms of inner race defects in rolling bearings are systematically studied. Based on fault response data obtained from dynamic simulations, the accuracy of the model is validated by analyzing the impact period. Emphasis is placed on investigating the influence of different defect sizes on the dynamic behavior of the system. The research results not only reveal the evolution direction of bearing faults but also provide an important theoretical foundation and methodological guidance for the condition monitoring and early fault diagnosis of rotating machinery. The findings indicate that as the width of the inner race fault increases, the vibration amplitude at the bearing end rises significantly. In the envelope spectrum, the amplitudes of the fault characteristic frequency and its modulation sidebands increase simultaneously, system nonlinearity intensifies, and stability gradually deteriorates. This provides clear spectral characteristics and dynamic evolution insights for the diagnosis of inner race faults.
[Downloads: 28 ] [Citations: 0 ] [Reads: 8 ] HTML PDF Cite this article
Experimental Study on Influence of Wheel Rim Closure on The Aerodynamic Characteristics of Rotating Wheels
SONG Ying-ying;A Lateng;CHEN De-sheng;FENG Shuwei;YANG Hua;WANG Xiang-jun;YANG Jun-wei;The aerodynamic characteristics of the wheels have a significant impact on the overall aerodynamic performance, fuel economy, and range of new energy vehicles. This study takes a single rotating wheel as the research object, and uses wind tunnel tests and a rotating wheel aerodynamic characteristic testing device, combined with numerical simulation flow field visualization technology, to systematically study the aerodynamic characteristics of rotating wheels under different wind speeds, incoming flow direction angles, and wheel closure states. The variation characteristics of wheel drag coefficient under wheel closure and non-closure conditions are compared and analyzed. The research results indicate that within the wind direction angle range of 0°～20°, the overall wheel drag coefficient increases with the increase of wind direction angle. As the driving speed increases, the overall resistance coefficient of the wheels shows a downward trend. However, in the higher speed range of 100–120 km/h, the significant influence of the rotation induced flow structure will cause a phased local rebound of the resistance coefficient, indicating that its variation with speed is non-monotonic. Compared to non-enclosed wheel conditions, enclosed wheels can reduce the coefficient of wheel resistance under most testing conditions. The research results can provide experimental basis and engineering reference for optimizing the aerodynamic design of wheels and improving the aerodynamic performance of the entire vehicle.
[Downloads: 5 ] [Citations: 0 ] [Reads: 7 ] HTML PDF Cite this article
Review on Parts Commonality for Jiefang Medium Military Transport Trucks
YANG Hui;YU Yang;HAO Yong-qiang;ZHU Yue;DENG Jia-le;ZHAO Tian-yu;To address the challenges in parts identification and spare parts management caused by the coexistence of multiple Jiefang medium-duty military transport truck models, this paper selects three representative models, namely Type A(2005), Type B(2013), and Type C(2021).Utilizing a feature comparison method, a systematic commonality analysis is conducted on the main functional components, structural parts, and wear-prone parts within the engine, chassis,body, and electrical assemblies. The results indicate that: Regarding the engine, differences in block dimensions, valve train and fuel injection methods, and lubrication and cooling circuit layouts result in no commonality for mechanical structural parts, fuel injection pumps, and cooling/lubrication components. Regarding the chassis, due to variations in the transmission, drive axle, front axle, suspension, and braking system, only the air treatment unit and expansion tank cap are interchangeable among the three models. Regarding the body and electrical systems,owing to generational changes in cab platforms, only standard parts such as fuses, relays, and light bulbs are common. This study provides a technical reference for end-users to discern model differences and optimize the stockpiling of vehicle spare parts.
[Downloads: 13 ] [Citations: 0 ] [Reads: 7 ] HTML PDF Cite this article
Research on the influence of fender beak structure on stamping process
JIA Yaojun;YUAN Cunhu;DENG Qichao;KANG Wenku;ZHANG Zewen;ZHAO Zhen;SHAO Qitao;TANG Dehu;Taking fender beak as the research object, this paper explores the influence of different beak structural parameters on the content arrangement of stamping process, stamping die strength,formability and springback by establishing data model and combining with stamping forming CAE simulation analysis technology and structural finite element analysis technology. The combination of fender beak structural parameters that meet the stamping process requirements is explored, which provides a reference for the preliminary structural design of the fender and the subsequent stamping synchronous engineering data verification and stamping process planning,improves the design efficiency and the accuracy and timeliness of data verification, and avoids the major risks in the process design and die development.
[Downloads: 18 ] [Citations: 0 ] [Reads: 6 ] HTML PDF Cite this article
Design and Simulation Research of Cold Start Intake Preheating Controller for Methanol Engines
TANG Yuanfan;FANG Cunguang;Methanol engines face difficulties in fuel evaporation during cold starts at low temperatures, and intake air preheating helps improve mixture formation. Existing research has primarily focused on combustion performance and preheating effects, while studies on the topology of onboard low-voltage highcurrent preheating power supplies, power disturbance rejection control, and adaptability to low-temperature capacitor degradation remain insufficient. A 12 V/48 V, 500 W two-phase interleaved Boost preheating power supply is designed. Based on a conventional power PI controller, a sliding mode correction is introduced to form a sliding-mode-enhanced power PI for comparison. Further, input voltage feedforward and integral sliding mode correction are incorporated to develop an input voltage feedforward-integral sliding mode enhanced power PI controller. Simulation results under rated starting, input voltage drop,capacitor degradation, and sudden power reference changes demonstrate that the latter significantly reduces power drop and recovery overshoot, improves tracking speed of the power reference, and maintains closedloop stability even after capacitor degradation. The findings provide a foundation for future power control in metal-ceramic heater load applications and engine bench testing validation.
[Downloads: 41 ] [Citations: 0 ] [Reads: 57 ] HTML PDF Cite this article
The state-of-the-art of Hybrid Electric Vehicle
HE Hong-wen,ZHU Jian-guang,LI jian (BIT EV Center of Engineering and technology,Beijing 100081,China)It is one of the main topics of vehicle industry to reduce the air pollution and better the situation of oil shortage.In this paper,the development background of Hybrid electric vehicle(HEV)is described,and the key technology of HEV is presented.The developing tendency of HEV is discussed.
Study of the EV Battery Pack Reliability and Asymmetry
WANG Zhenpo,SUN Fengchun(School of Mechanical & Vehicular Engineering,Beijing Institute of Technology,Beijing100081, China)Through the road test of BJD6100EV which is developed by Beijing Institute of Technology and Beijing PublicTraffic Co.in Beijing,the EV battery pack characteristics are studied.The basic model for the batteries is established for analyzing the basic rules for analyzing the basic rules of charge and discharge.The battery pack reliability and the EV performance influences are mainly discussed,which are caused by single battery inconsistentness of the pack,especially,the solving method.
Analysis of the Energy Computation And Influence Factors of Electric Vehicle Range
XU Gui-bao, WANG Zhen-po, ZHANG Cheng-ning (School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China)Based on the principle that output and consumed energy of the battery set on EV are egual. The computation method of EV range is analyzed and verified by the experiments of HFF6112GK50-EV range. By the farther study on the experiments data, the EV battery set usage evaluation and influence factors of EV range are finally analyzed and some valuable conelusions are obtained.
Research of Automobile Suspension Systems Dynamics Simulation
LI Jun 1, MENG Hong 1, ZHANG Hong kang 1, GU Zhong li 2 (1 China North System Engineering Institute,Beijing 100089,China;2.School of Vehicle & Transportation Engineering,Beijing Institute of Technology,Beijing 100081,China)In this paper,by applying the mechanical system simulation software ADAMS,the full vehicle multi-body model was created,and the vehicle dynamic simulation was carried out.In the mean time,the effects of suspension geometric parameters on steady-state steering characteristics were studied.
Simulation and Analysis on Vehicular Power Performance with Cruise
WANG Rui,HE Hong-wen(National Engineering Laboratory for Electric Vehicle,Beijing institute of technology,Beijing,10081)The power performance is the most basic and important performance for automobiles,which is usually calculated by theoretical formulas.In this paper,a new method for power performance calculation with software Cruise is introduced.The simulation results are compared witch the oues got by theoretical formulas,where the results got by Cruise are proven fo be more precise.
[Downloads: 2,053 ] [Citations: 93 ] [Reads: 92 ] HTML PDF Cite this article
Overview of the Development of Silicon Carbide Power Devices at Home and Abroad
CHEN Yao;ZHAO Fuqiang;ZHU Bingxian;HE Shuai;In this paper, the performance characteristics of silicon carbide single crystal substrate technology, epitaxial wafer technology, and power devices at home and abroad are summarized and analyzed, and the problems faced in the application of SiC power device products are pointed out: the driving technology and protection technology of SiC power device are still immature,the electromagnetic compatibility problems are not completely solved and the applied circuit topology is not optimized enough. In order to solve these problems, we should develop from the following aspects: reducing the material cost of single crystal substrates and epitaxial wafers, reducing the loss of silicon carbide devices at high temperatures, and developing new packaging technology suitable for SiC power device.
[Downloads: 3,378 ] [Citations: 50 ] [Reads: 114 ] HTML PDF Cite this article
The state-of-the-art of Hybrid Electric Vehicle
HE Hong-wen,ZHU Jian-guang,LI jian (BIT EV Center of Engineering and technology,Beijing 100081,China)It is one of the main topics of vehicle industry to reduce the air pollution and better the situation of oil shortage.In this paper,the development background of Hybrid electric vehicle(HEV)is described,and the key technology of HEV is presented.The developing tendency of HEV is discussed.
Simulation and Analysis on Vehicular Power Performance with Cruise
WANG Rui,HE Hong-wen(National Engineering Laboratory for Electric Vehicle,Beijing institute of technology,Beijing,10081)The power performance is the most basic and important performance for automobiles,which is usually calculated by theoretical formulas.In this paper,a new method for power performance calculation with software Cruise is introduced.The simulation results are compared witch the oues got by theoretical formulas,where the results got by Cruise are proven fo be more precise.
[Downloads: 2,053 ] [Citations: 93 ] [Reads: 92 ] HTML PDF Cite this article
Overview of Research on Localization Methods for Mobile Robots
ZHANG Mengxuan;SU Zhibao;SUO Xudong;Intelligent Mobile Robots Research Institute(Zhongshan);This paper provides an overview of several typical localization methods for mobile robots, and discusses the advantages and disadvantages of each method. Compared with the application limitations of a single sensor, the significance of multi-sensor information fusion technology for localization problems is analyzed. Finally, prospects are proposed for the development of mobile robot localization systems.
[Downloads: 1,911 ] [Citations: 35 ] [Reads: 333 ] HTML PDF Cite this article
Finite Element Modeling and Simulation Analysis of Bolted Joints
XIN Peng;WAN Yi-qiang;XU Zhuo;In view of the simulation analysis of bolt connection structure,a finite element model for a single bolt connection and a finite element model for the bolt flange are established. Theoretical calculation and simulation analysis show that,after adding the tightening torque,the assembly stress is mainly generated among the bolt screw head,washer and fittings,and the maximum stress value appeared in the nut and screw joints. Modal analysis shows that the bolt pre-tightening force has little influence on the structure. For bolted flange connection structure,the stress variation and distribution caused by the assembly are limited near the bolts. In order to improve the efficiency and accuracy of the simulation calculation,a connection model for an entity bolt is recommended.
[Downloads: 1,828 ] [Citations: 51 ] [Reads: 118 ] HTML PDF Cite this article