METHOD FOR CALCULATING A FILTER LOAD ESTIMATION, SYSTEM FOR CLEANING ENVIRONMENTAL AIR, AND VEHICLE COMPRISING THE SAME

A method for calculating a filter load estimation in an electrical or hybrid vehicle and system for the same. The method comprising: obtaining, from a computer memory of the vehicle: charging status data representing a charging condition of a battery; charging power data representing a charging power being used for charging the battery. The method comprises obtaining an exterior air temperature; determining that the charging condition is that the battery is being charged; providing, with a fan, air flow through a heat radiator and a filter, wherein the filter is positioned in stream with the radiator; the method - further comprising obtaining a battery charging parameter and calculating the filter load estimation based on the exterior temperature, the charging power and the battery charging parameter.