Hebei University of Technology
National Natural Science Foundation of China (51108011)
In order to quantitatively analyze the driving comfort of the highway on the longitudinal slope section, real vehicle experiments were carried out to collect the driver's physiological data, road parameters and driving speed. Fourier transform was used to transform the driver's heart rate random signal to study the law of heart rate changes. Partial correlation analysis was used to determine the significant factors affecting the driver's heart rate growth rate on the uphill and downhill section. Based on traffic engineering, human factors engineering and psychology, explore the influence of slope and speed difference on the driver's heart rate growth rate, and build a driving comfort evaluation model based on the heart rate growth rate threshold. The research results show that the slope and speed difference are significantly related to the driver's heart rate growth rate, while the slope length is weakly related to the driver's heart rate growth rate. When driving on an uphill section, the driver’s heart rate growth rate is mainly distributed between 15% and 32%, and the slope has a greater impact on driving comfort. When driving on a downhill section, the driver’s heart rate growth rate is mainly distributed between 15% and 35%, and the speed difference has a greater impact on driving comfort. The research results can provide a theoretical basis for the safety management of highway longitudinal slope section.
乔建刚,杨程. 基于驾驶员心率的高速公路纵坡路段驾驶舒适度评价研究[J]. 科学技术与工程, , ():复制