本文選題：碰撞前車速 + 碰撞后車速�。� 參考：《汽車工程》2017年09期

【摘要】：為控制基于典型汽車碰撞模型計(jì)算的碰撞前車速誤差,采用了反推算法。對2起車輛碰撞事例進(jìn)行了碰撞前車速的模擬和試驗(yàn)。模擬結(jié)果表明,碰撞后車速誤差是影響模型計(jì)算的碰撞前車速準(zhǔn)確性的關(guān)鍵因素,而相對而言力學(xué)參數(shù)誤差的影響則小得多。以碰撞試驗(yàn)結(jié)果為準(zhǔn)確值對模擬計(jì)算的碰撞前車速誤差進(jìn)行了不同校正的研究。結(jié)果表明,對碰撞后車速誤差和力學(xué)參數(shù)誤差進(jìn)行一次校正就能夠消除碰撞前車速誤差。研究結(jié)果證明該模型和算法具有極好的穩(wěn)定性和收斂性。
[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.
【作者單位】： 北華大學(xué)汽車與建筑工程學(xué)院;吉林大學(xué)交通學(xué)院;
【基金】：國家自然科學(xué)基金(51178001和31570556) 吉林市科技發(fā)展計(jì)劃項(xiàng)目(20090404)資助
【分類號】：U491.31
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本文編號：1837295