Device having a reducing agent line and a wind protection element

摘要

The method involves measuring and/or calculating heat dissipation (10) from a reducing agent line (8) in multiple zones (21) of the reducing agent line by considering ambient temperature (22) and/or driving speed (23) of a vehicle (18). The zones in which real time freezing of reducing agent (4) i.e. AdBlue (RTM: Aqueous urea solution), is to be expected is identified. Heat energy is supplied for preventing freezing of the reducing agent, where the heat energy is supplied by an electrical heater (3) and/or through conveyance of the reducing agent through the reducing agent line. An independent claim is also included for a device controlling emissions of a vehicle, comprising a wind protection element.