This paper introduces a new approach to considering the vehicle 's crosswind behavior which includes the driver's reactions. This project at the FKFS aims to develop a new approach to evaluate the crosswind behavior from the driver's perspective. Basically, the evaluation of the vehicle's crosswind behavior can be derived from characteristic steering inputs. Within this new approach, the criteria are: Intensity of the driver's steering actions; promptness of the driver's steering actions; intensification of the vehicle reactions by the driver's steering actions; vehicle reactions with the driver's actions. Vehicles which need intense and prompt steering actions to compensate stochastic crosswind are subjectively evaluated as 'anxious' and 'uneasy to handle during crosswind'. High intensification factors display a poor combination of driver and vehicle. High intensification factors in conjunction with great vehicle reactions with the driver's actions lead to the driver's subjective evaluation 'crosswind sensitive'. The overall assessment of the vehicle's crosswind behavior by the driver is due to all criteria. This new approach was derived by means of experiments with different vehicles and drivers. This paper illustrates the results from two vehicles and two drivers. The application of this approach showed consistent results with the driver's subjective assessment of the vehicles. In addition, comparing different drivers in a set of vehicles showed the same characteristics in their adaptation to the vehicles even in case of different driver strategies. The results mentioned in this paper serve as a base for analyzing the driver's adaptation to different vehicles and modeling an adaptive virtual driver in order to predict the vehicle's crosswind behavior at an early stage of a vehicle's conception. To achieve this, it is more important to model a virtual driver reflecting human adaptation to different vehicles instead of individual characteristics of driver strategies. Analyzing the driver's adaptation to different vehicles will provide important perceptions regarding the combination of driver and vehicle, which transcend the compensation of stochastic crosswind.
Crosswind behavior in the driver's perspective
Seitenwindverhalten aus der Sicht des Fahrers
2002
10 Seiten, 9 Bilder, 3 Quellen
Conference paper
English
Crosswind Behavior in the Driver's Perspective
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