The air filter is integrated into the existing Audi airflow in front of the radiator.
Audi partnered with supplier MANN + HUMMEL on a pilot project to develop a particulate filter for electric cars. The air filter will collect particulate matter from the surrounding areas, both while driving and charging. It has been designed keeping in mind the need to improve air quality in cities during the first phase of testing. The technology will be demonstrated at the Greentech Festival in London.
The air filter has the same function as the static system and ensures that the vehicle’s particulate emissions are also absorbed. Regardless of the vehicle’s powertrain, 85% of fine dust particles in road traffic are caused by wear on brakes, tires or the road surface. These microscopic dust particles can be easily inhaled and are harmful to health.
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Audi’s experimental project to remove particulate matter from the environment was launched in 2020 and will run for four years. Fabian Groh, Project Manager for Attachment Systems Development at Audi AG, said: “This particulate filter is an example of our pursuit of innovation for the benefit of everyone and successful partnerships with specialized supplier.
The air filter is integrated into the vehicle’s existing airflow in front of the radiator, which means that modifications are needed to the vehicle, helping to keep costs down. The filter can be controlled via a switchable cooling air inlet, and its mechanical function is similar to that of a vacuum cleaner. Fine dust particles are trapped in the filter and air can still pass through the filter.
So far, Audi has used this filter in e-tron test cars. While driving, the technology passively filters the air thanks to the movement of the vehicle; Air flows through the filtration system, helping to retain the smallest particles. During static charging, a built-in fan circulates ambient air through the radiator. The system takes advantage of this process and can therefore actively filter the air that passes through it.
First published date: October 17, 2022, 11:58 AM IST