A Driving Comfort Evaluation Method Based on Smartphone Testing Data

The driving vibration caused by the pavement roughness is an important factor affecting the driving comfort, and the driving vibration is speed-dependent, so there are some deficiencies in the method of reflecting the driving feeling only by the pavement roughness index. Small smart devices represented by smartphone can detect vibration and speed. In order to provide a new reference method for pavement driving comfort evaluation, Honda-CRV and smartphone were used as the experimental vehicle and data collection equipment. Driving experiments were carried out on several ordinary asphalt pavement sections with different smoothness, and the driving vibration and speed data were obtained by experiment phone. Taking the vector synthetic vibration acceleration as the vibration index, a new index for pavement driving comfort evaluation -- comfort rate (CR) was put forward from the point of view of the time of road section driving vibration process. The CRs of different experiment sections were calculated, the relationship between CR and riding quality index (RQI) was analyzed, the feasibility of using CR as the evaluation index of driving comfort was discussed. Finally, according to the CR distribution range of the experimental sections and the meaning of CR, the CR rating method for driving comfort evaluation was proposed, which provided a new way to evaluate the driving comfort with driving intelligent perception data.