Nira Dynamics Ab

Per Olof Magnus Magnusson

Lisa Ingegerd Eriksson

Johan Olof Kälvesten

Lars William Jonsson

Jesper Harald Otterholm

Methods, apparatuses, systems and computer program products for estimating individualized road condition information for a specific vehicle are disclosed. Generic road condition information is received, which is indicative of at least one condition of a road segment. Further, individualization information is received, which is representative of an estimating method to be performed on the generic road condition information to obtain individualized road condition information for the specific vehicle. Individualized road condition information are estimated for the vehicle, wherein the estimating method is applied to the received generic road condition information to obtain individualized road condition information.

Methods, apparatuses, systems and computer program products for estimating road condition information

Methods, apparatuses, systems and computer program products are disclosed to estimate road surface temperature for a geographic location. Reference ambient sensor data indicative of ambient conditions in vicinity to mobile vehicles are retrieved. Reference roadside sensor data indicative of at least road surface temperature in vicinity to distributed roadside sensors are retrieved. A relationship is established between the reference ambient sensor data and road surface temperature, based on the reference ambient sensor data and based on the reference roadside sensor data. A data structure is created, encoding the established relationship. Further, current vehicle ambient sensor data, indicative of current ambient conditions in vicinity to the one or more vehicles, are collected at one or more vehicles. Finally, a road surface temperature estimate is determined for the geographic location, using the data structure and using the collected current vehicle ambient sensor data.

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Linköping, Sweden

Per Olof Magnus Magnusson