基于移动窗比功率的主动式头枕控制算法

摘要/Abstract

摘要： 为减小追尾碰撞中乘员损伤，开发了一款基于加速度信号控制的主动式头枕。针对其控制系统，提出了移动窗比功率算法。通过与移动窗积分算法和比功率算法进行运算数据对比，分析了其抗干扰性和触发及时性，并开展了头枕台架试验和后碰撞台车试验。结果表明，该算法抗干扰性更强，触发更及时，其触发时刻误差在1ms以内，能有效避免误触发；头枕可在碰撞发生后52ms内完全展开，控制系统可在15ms内发出触发信号。

关键词: 主动式头枕, 控制系统, 移动窗比功率算法, 追尾碰撞

Abstract: An active head restraint controlled by the acceleration signals was developed to reduce occupant injury in the rear-end impacts. Aiming at the control systems of the restraint, a moving window specific power algorithm was proposed. Its anti-jamming and trigger timeliness were analyzed by comparing operational data with moving window integration algorithm and specific power algorithm respectively, and several tests including head restraint bench tests and rear impact sled tests were conducted. The results show that the algorithm has a robust anti-interference and a timely trigger, its trigger time error is within 1ms, and that false triggering may be avoided effectively. The control system may send out the control signals within 15ms, and that the head restraint may be fully expanded 52ms after the collision.

Key words: active head restraint, control system, moving window specific power algorithm, rear-end impact

中图分类号:

U461.91

颜凌波1;祝志鹏1;王凯2;曹立波1. 基于移动窗比功率的主动式头枕控制算法[J]. 中国机械工程.

YAN Lingbo1;ZHU Zhipeng1;WANG Kai2;CAO Libo1. Control Algorithm of Active Head Restraints Based on Moving Window Specific Power[J]. China Mechanical Engineering.

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