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2025 Volume 0 Issue 5  Published: 2025-05-05
  • Bangbei Tang , Bingjie Luo , Mingxin Zhu , Shengnan Chen , Zhian Hu , Yan Li
    doi: 10.19822/j.cnki.1671-6329.20230310

    Electric Vehicles (EVs) are more prone to inducing motion sickness compared to traditional vehicles. To investigate the factors contributing to motion sickness in EVs and their differences from traditional vehicles, and to propose effective mitigation and treatment methods, process and mechanism of motion sickness induction in EVs is explored by analyzing factors such as EVs’ structural characteristics, power output, and regenerative braking systems. Mitigation methods, including medical medications, structural optimization, and aroma regulation are also considered. Meanwhile, subjective questionnaires and objective physiological data are compared as methods for testing motion sickness. The research results indicate that EVs are more likely to induce motion sickness due to their robust power output characteristics and the repeated pulling sensation caused by the regenerative braking system. Existing mitigation methods have shown varying degrees of effectiveness across different individuals. Additionally, the study offers insights and prospects for future research on managing motion sickness in EVs, contributing to more effective solutions.

  • Weinan Li , Linrun Li , Jian Zhang , Xiangzhe Meng , Yu Wang
    doi: 10.19822/j.cnki.1671-6329.20230250

    This paper focuses on hot topics of driving characteristics, outlining the basic concepts and three identification methods: methods based on head movements and facial features, methods grounded in physiology and psychology, and methods relying on operational behavior. It elaborates on the applications of driving characteristic identification in energy management strategies for hybrid vehicles, safety warning systems, and personalized driving assistance systems. Finally, the current status and limitations of researches on driving characteristics are summarized, and prospects for future research work are proposed.

  • Yu Xiang , Yonghao Liu , Lei Zhang
    doi: 10.19822/j.cnki.1671-6329.20240216

    In order to enhance the safety of vehicles equipped with air suspension and to prevent injuries to road users caused by air suspension failures during operation, a functional safety analysis of the air suspension system is conducted. Based on the ISO 26262 functional safety standard, relevant items of the air suspension system are defined, and a hazard analysis and risk assessment method are used to derive the functional safety objectives for the air suspension. These functional safety objectives are then decomposed step by step to the subsystem and hardware/software levels, establishing a complete safety architecture. Combining the vehicle rollover theoretical model, the risk of vehicle rollover is analyzed, along with the impact of air suspension height adjustment on the roll moment arm and lateral load transfer rate. A graded response mechanism is proposed: if the suspension fails but there is no rollover risk, an alarm is triggered and continuous monitoring is maintained; if there is a rollover risk, the height adjustment function is forcibly stopped to ensure the system enters a safe state. The designed strategy effectively balances functional safety with system availability, ensuring the functional safety of the air suspension and the overall stability of the vehicle.

  • Sheng Wu , Jiayi Fu , Xu Jiang , Jin Xi , Yongqi Liu
    doi: 10.19822/j.cnki.1671-6329.20240126

    At present, there is still a big gap between the performance of domestic air spring rubber capsules and foreign countries’, and the core technology is mainly in the hands of foreign companies. In order to study the core technical difficulties of air spring rubber airbags, the paper analyzes the application status and future development trend of air springs in the field of passenger vehicles. The rubber airbags are discussed from two aspects, materials and molding process. This paper finally summarizes the core technical problems of cystic skin, and the potential technological breakthrough paths to provide reference for the development of rubber skin technology in China.

  • Teng Ma , Yuanzhi Liu , Qiang Zhang , Xin Zhang , Chunyu Zhou
    doi: 10.19822/j.cnki.1671-6329.20240080

    To enhance driving performance during drive mode transitions in battery electric vehicles, a controllable disengagement device is integrated between the front axle electric drive assembly and the differential, enabling timely switching between four-wheel-drive (4WD) and two-wheel-drive (2WD) modes. First, a dual-motor four-wheel-drive pure electric vehicle configuration incorporating the disengagement device is constructed, and the energy flow characteristics of 2WD and 4WD modes are analyzed. Second, mode transition conditions are designed based on driving scenario requirements, and a phased torque transfer control strategy is developed. Finally, seven categories of drivability evaluation scenarios are proposed, along with objective evaluation metrics. Experimental validation demonstrates that the proposed configuration significantly enhances the vehicle’s driving performance and ride comfort.

  • Yu Fang , Jipeng Xie , Guodong Hua , Zhendong Zhao
    doi: 10.19822/j.cnki.1671-6329.20230158

    In response to China’s “Transportation Power” strategy and the urgent need for breakthroughs in core technologies of Intelligent Connected Vehicle (ICV), addressing key challenges such as insufficient regional collaborative innovation and delays in building industry-wide patent barriers, this paper examines the development status and relevant policies of environmental perception technology. A comprehensive patent analysis is conducted on Jiangsu Province from multiple dimensions, including application trends, geographical distribution, patent mapping, and examination cycles. Finally, policy recommendations are proposed to optimize the patent layout in Jiangsu’s ICV sector, aiming to enhance its industrial competitiveness and provide valuable insights for future development.

  • WangChao , Liangliang Wang , Jing Wang
    doi: 10.19822/j.cnki.1671-6329.20240044

    The braking distance is longer due to the larger size and weight of commercial vehicles, resulting in greater collision energy when accidents occur. In order to effectively reduce the injury of passengers in collision accidents, occupant protection technology for commercial vehicle cab is widely studied. Using patent analysis methods, the patents related to occupant protection technology are sorted out in terms of patent disclosure trends and patent technology composition. Furthermore, relevant patents of important enterprises are interpreted, and suggestions for the direction of patent layout in this field are put forward.

  • Yuhan Sun , Xiqing Wu , Zhanhui Yao , Yifan Li
    doi: 10.19822/j.cnki.1671-6329.20240138

    As a key technology of next-generation power battery, solid-state batteries can meet the full-scene, all-climate, and high-safety requirements of new energy vehicles. To support the high-quality development of the solid-state battery industry, it is essential to systematically sort out the main technical routes of solid-state batteries, as well as the policy support and development status of domestic and foreign enterprises. The common technical and cost-related problems in the industry should be identified. The development of China’s solid-state battery industry is confronted with challenges such as patent constraints, an incomplete standard system, and potential impacts on existing liquid-state battery industries. In the future, it is urgent to plan and coordinate efforts, mobilize industry forces, and take multiple measures to accelerate the technological breakthroughs and industrial application of solid-state batteries.

  • Ce Feng , Ming Zhang
    doi: 10.19822/j.cnki.1671-6329.20230127

    Light tactical vehicles are the backbone of rapid combat and rapid transfer on the modern battlefield. At present, there is a certain gap between the development of light tactical vehicles in China and that in foreign countries. In order to clarify this gap and promote the development of light tactical vehicles in China, the research progress of foreign mainstream light tactical vehicles is analyzed. It is found that the development of foreign light tactical vehicles has the characteristics of vehicle family, high mobility, high protection, electrification and intelligence. Based on this, the strategic suggestions for the development of light tactical vehicles in China are put forward in order to provide reference for reducing the disparity with the international advanced level.