冷韶华,高利,王树凤,朱永强.五轴全轮转向汽车动力学模型分析[J].农业机械学报,2008,39(12):39-44.
.[J].Transactions of the Chinese Society for Agricultural Machinery,2008,39(12):39-44.
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五轴全轮转向汽车动力学模型分析   [下载全文]
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DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  动力学模型  五轴汽车  全轮转向
基金项目:
冷韶华  高利  王树凤  朱永强
北京理工大学
中文摘要:为提高多轴汽车操纵稳定性,针对五轴全轮转向汽车的高速同相位转向工况,进行了受力分析,建立了运动微分方程,利用Fiala轮胎模型建立了轮胎的力学模型,利用LabVIEW软件建立了整车的动力学仿真程序。通过虚拟试验仿真分析,发现采用全轮转向,可以使后轴车轮较早地参与转向,从而提高了汽车的转向响应速度,并使车身侧倾角由
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Abstract:7.5°减小为4°。In order to enhance the handling stability of multi-axle vehicle, a mechanical analysis on high-speed inphase steering conditions of five-axle vehicle with all-wheel steering has been done, and the related kinematics differential equations of vehicle with 24 freedom degrees were established, the mechanical model of the tyre has been built based on Fiala-tyre model. Finally, VI sub-function compiled by C language was inserted into LabVIEW graphical codes by MathScript node. The whole vehicle dynamics simulation program has been built based on LabVIEW software. The virtual test simulation results showed that all-wheel steering technology would make rear-axle wheel steer ahead of 0.15 s, and the rear wheel could steer with the front wheel at the same time so that the steering response rate could be improved and the roll angle of vehicle body would be reduced from 7.5° to 4°.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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