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汽车安全气袋控制算法的抗路面干扰问题是气袋控制系统研究的难点和重点之一。该文分析了基于水平加速度的控制算法抗路面干扰性能的不足;从汽车发生正面碰撞和受到路面干扰两种情况下动力学模型的差异入手,构建了基于汽车水平、垂直两个方向加速度的双向加速度合成控制算法,并分析了参数选取对于这种合成算法性能的影响。试验数据表明,合成后的路面干扰信号被衰减为原信号的近1/3,而碰撞信号衰减很少,从而提高了算法的抗路面干扰能力。
Anti-road surface interference of airbag control algorithm is one of the most difficult and important research topics in airbag control system. This paper analyzes the shortage of the control algorithm based on the horizontal acceleration in anti-jamming performance. Starting from the difference of the dynamic model in the case of frontal collision and road surface disturbance, a two-way Acceleration synthesis control algorithm, and analyze the parameter selection for the performance of this synthesis algorithm. The experimental data show that the synthesized signal of the road surface is attenuated to nearly 1/3 of the original signal and the attenuation of the collision signal is very small, so that the anti-road surface interference capability of the algorithm is improved.