基于试验结果的碰撞前车速误差的校正

发布时间：2018-05-03 06:07

  本文选题：碰撞前车速 + 碰撞后车速　； 参考：《汽车工程》2017年09期

【摘要】：为控制基于典型汽车碰撞模型计算的碰撞前车速误差,采用了反推算法。对2起车辆碰撞事例进行了碰撞前车速的模拟和试验。模拟结果表明,碰撞后车速误差是影响模型计算的碰撞前车速准确性的关键因素,而相对而言力学参数误差的影响则小得多。以碰撞试验结果为准确值对模拟计算的碰撞前车速误差进行了不同校正的研究。结果表明,对碰撞后车速误差和力学参数误差进行一次校正就能够消除碰撞前车速误差。研究结果证明该模型和算法具有极好的稳定性和收敛性。
[Abstract]:In order to control the pre-collision speed error calculated by the typical vehicle collision model, the inverse calculation method is adopted. Two cases of vehicle collision were simulated and tested before collision. The simulation results show that the postcollision speed error is the key factor affecting the accuracy of the pre-collision speed calculated by the model, but the effect of the mechanical parameter error is much less. The error of pre-collision velocity calculated by simulation is studied with the accurate result of collision test. The results show that the speed error before collision can be eliminated by correcting the speed error and mechanical parameter error once. The results show that the model and algorithm have excellent stability and convergence.
【作者单位】： 北华大学汽车与建筑工程学院;吉林大学交通学院;
【基金】：国家自然科学基金(51178001和31570556) 吉林市科技发展计划项目(20090404)资助
【分类号】：U491.31
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本文编号：1837295