Vehicle ambient air purification arrangement and method, and a vehicle and vehicle fleet comprising such arrangement

摘要

A vehicle ambient air purification arrangement, a vehicle, a vehicle fleet and a method for purifying air ambient to a vehicle are provided. The arrangement comprises an air conveying apparatus and a controller. The controller is arranged to control the air conveying apparatus to convey ambient air through ducts and filters of a vehicle exhaust gas treatment system in response to a determination that a combustion engine is inoperative and that a voltage supplied to the arrangement exceeds a threshold voltage.

主权项

1. A vehicle ambient air purification arrangement for use in a vehicle including a combustion engine and an associated exhaust gas treatment system having ducts and one or more filters therein for purification of exhaust gas, the vehicle ambient air purification arrangement comprising:
an air conveying apparatus separate from the combustion engine; and a controller to control the air conveying apparatus to convey ambient air through the ducts and the one or more filters of the exhaust gas treatment system in response to a determination that the combustion engine is inoperative and that a voltage supplied to the arrangement exceeds a threshold voltage upon determining that the arrangement or the vehicle is supplied with electricity from an electrical supply source located outside of the vehicle, so that the one or more filters collect particles in the ambient air when the ambient air is conveyed through the one or more filters.