Abstract: By testing and statistic method, the eyelipse is made by Society of Automotive Engineers (SAE). Using it, designers can be certain of the target driver population accommodation of well-designed vision. Recent researches indicate that SAE eyelipse should be updated to fit the modern design process. Since different driver population has its corresponding distribution of eye positions because of the diversity of stature, habit, etc., different eyelipse model should be built. New statistic process of eyelipse should include more factors and design variables. Studies show that eye positions follow a multivariable normal distribution, and each marginal distribution is also normally distributed. The parameters of eyelipse can be calculated from numeric characteristics of marginal distribution of eye positions. Meanwhile, eye position distributions will depend on seat height, steering wheel position, and stature distribution of driver population. These factors should be considered in the new eyelipse model development, in order to establish statistic models with more flexibility.

Key words: Eyelipse, Normal distribution Statistics, Parameter, Prediction model