基于对驾驶员多感官刺激的减速震荡标线组间距研究

Research on Spacing of Deceleration Shock Marking Group Based on Multi-sensory Stimulation for Drivers

为增强减速震荡标线对驾驶员的刺激,提高减速效果及其长久性,提出多感官信息协同刺激下减速震荡标线的组间距设置方法。运用心理物理学原理分析得出,车辆通过震荡标线时,驾驶员对车速的感知与车辆震动的频率变化直接相关。标线组间隔距离的渐近设置能使驾驶员感受到车辆震动频率递增。根据韦伯定律,当震动频率的变化率大于韦伯分数时,驾驶员产生加速错觉。根据该原理,建立不同初速度条件下,诱导车辆减速到不同目标速度的减速震荡标线组设置间距的计算模型。用该模型计算得到的组间距值设置的震荡标线,能刺激和促使驾驶员将车速降至目标车速,达到路段限速目的。

In order to enhance the stimulus of deceleration shock marking to the drivers, improve the slowing effect and long-term action effect, a deceleration shock marking group spacing setting method was worked out. According to the principle of physical psychology, driver＇s speed perception is directly related to the change of vehicle vibration frequency when the vehicle driven on a deceleration shock marking group. The group spacing shorten gradually will make drivers feel the vehicle vibration frequency increased. According to Weber＇s law, the driver felt acceleration illusion when the rate of ehange of vibra- tion frequency was larger than the Weber fraetion. A gradient group spacing caleulation model was built for deceleration shock marking required for decreasing different initial speeds to the target velocity.