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    HPCL to Increase Its Fuel Outlets by 1,000 Annually in the Medium Term

    HPCL to Increase Its Fuel Outlets by 1,000 Annually in the Medium Term

    BEV Sales in Europe Experiences a 30% Increase, Reaching 157,957 Units in October

    BEV Sales in Europe Experiences a 30% Increase, Reaching 157,957 Units in October

    Sales of Electric Two-Wheelers Exceeded 91,000 Units, Reaching a Record 11-Month Total Retail of 780,000 EVs

    Sales of Electric Two-Wheelers Exceeded 91,000 Units, Reaching a Record 11-Month Total Retail of 780,000 EVs

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    HPCL to Increase Its Fuel Outlets by 1,000 Annually in the Medium Term

    HPCL to Increase Its Fuel Outlets by 1,000 Annually in the Medium Term

    BEV Sales in Europe Experiences a 30% Increase, Reaching 157,957 Units in October

    BEV Sales in Europe Experiences a 30% Increase, Reaching 157,957 Units in October

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    Car Makers Urges Government to Extend Tax Incentives for EVs Until Market Penetration Reaches 15-20 Percent

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Audi Urban Purifier – The Fine Dust Filter for Electric Vehicles

KARREP by KARREP
October 21, 2022
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Audi Urban Purifier – The Fine Dust Filter for Electric Vehicles

Audi Urban Purifier – The Fine Dust Filter for Electric Vehicles

In a trial project, Audi is collaborating with vendor MANN+HUMMEL to create a particulate filter for electric automobiles that gathers airborne particles. During an initial trial phase, it will already contribute to enhancing city air quality while recharging. The cutting-edge technology will be displayed at the London GREENTECH FESTIVAL.

85% of fine dust in road traffic is due to brake, tyre, or road abrasion, regardless of a vehicle’s drive type. The tiniest dust particles, which are so minute that they are hardly visible to the naked eye and have a diameter of only 10 micrometres, are easily inhaled since they are only a few micrometres in size. The World Health Organization (WHO) has suggested far lower particulate matter limits than in the last year, but experts claim that many German urban regions would be unable to meet these new standards.

Audi places sustainability at the heart of its activities and takes responsibility for the environment and society. The company strives to make production net-carbon-neutral1 and to reduce emissions where possible. Together with the supplier MANN+HUMMEL, Audi has now developed a filter for the front end that can collect particulate matter from its environment; it functions similarly to stationary systems that are already in use in some cities. The mobile version ensures not only are the car’s own particulate emissions absorbed, such as those of an Audi e-tron, but those of other vehicles can be absorbed as well – right where they are generated.

The pilot project was launched in 2020 and will run for a period of four years, Fabian Groh, Project Manager in Attachment System Development at AUDI AG, explains:

“This particulate filter is an example of our pursuit of innovation for everyone’s benefit and a successful collaboration with specialised suppliers. We are already doing a lot today on our own initiative. We anticipate it will also become a legal requirement in the future.”

A225796 large 1
Audi Urban Purifier – The Fine Dust Filter for Electric Vehicles

The filter is integrated into the vehicle’s existing airflow in front of the radiator so that only a few modifications to the car are necessary, keeping costs down. The filter element is controlled via the switchable cooling air inlet and its mechanical function is comparable to that of a vacuum cleaner. By a similar principle, the fine dust particles remain stuck in the filter and the air can still flow through it.

Thus far, the filter has been used in Audi e-tron test vehicles. While driving, it passively filters by means of the movement of the vehicle; air flows through the filter system, which captures even the smallest particles. Another possibility is filtering during stationary charging. A fan that is already built into every electric vehicle conveys ambient air through the radiator – the system takes advantage of this process and can thus actively filter the air flowing through it, using the fine dust filter, ensuring the smallest particles are absorbed, even when stationary. This is ideal for use in urban environments, where the particulate matter pollution is much higher than in rural areas.

The assessments conducted on the test vehicles were not only used to analyse the effectiveness of the filters, but also to determine whether the technology affects overall vehicle usage. After over 50,000 kilometres (31,068 mi.) of endurance tests on the Audi e-tron, the answer was clear: the filters have no negative effect on the operation of the electric vehicle, including on hot summer days or during fast charging.

The system is so effective that, depending on the usage scenario, the Audi e-tron particles are completely filtered out in a highly polluted city such as Stuttgart. In even more polluted cities fine dust emissions can be actively and passively absorbed by up to three vehicles in a typical customer scenario. To make the system even more efficient, Audi is working with MANN+HUMMEL to connect with existing sensors such as weather stations, plus they plan to develop a display logic in the vehicle, allowing passengers to determine when the system is active and how much has already been filtered.

The filter is easy to maintain and must only be replaced when the regular service interval has been reached. A lifecycle analysis of the entire filter system has shown that it will account for 14.9 kg (32.8 lbs.) of CO2 equivalents. Additionally, the filter itself consists of 15% recycled material and the entire system is 60% recycled.

Audi understands net-zero carbon emissions to mean a situation in which, after other possible reduction measures have been exhausted, the company offsets the carbon emitted by Audi’s products or activities and/or the carbon emissions that currently cannot be avoided in the supply chain, manufacturing, and recycling of Audi vehicles through voluntary offsetting projects carried out worldwide. In this context, carbon emissions generated during a vehicle’s utilisation stage, i.e. from the moment it is delivered to the customer, are not taken into account.

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