Narrower, Bigger Diameter Tyres Of EVs Encourage Innovation Around Them

Narrower, Bigger Diameter Tyres Of EVs Encourage Innovation Around Them

The narrower, bigger diameter tyres of electric vehicles are encouraging innovation around them. Supporting lower rolling resistance, the tyres are pushing suppliers and OEMs to explore new technological innovations. A leading German auto supplier for example has developed a ‘mechanical’ technology to ensure superior manoeuvring with near 180 degrees turn of the steered wheels. 
This is a development that could be applied to ICE rear-wheel drive vehicles as well. Even, light-duty commercial vehicles such as the Tata Ace/1000 or the Switch Iev3/Iev4 that are aimed at the last mile delivery segment were backing up into a tight parking spot or navigating through a narrow lane is part of the job. 
As designers and engineers toy with the idea of larger wheel wells and the ability of the steered – front – wheels to turn as much as 180 degrees, the use of narrower, bigger diameter tyres with low rolling resistance in electric vehicles is spurring yet another round of innovation, albeit as a part of the entire platform architecture that is rather software driven and subject to much virtual development in the interest of ‘time-to-market’ and a differentiated user experience. 
With over 14 million small electric vehicles sold in 2023 the world over, the push has been to develop tyres that enhance operation and performance. Provide a typical ‘family’ car the ability to transform into a sports car given the wave of high torque available from the word ‘go’ in an electric vehicle. 
With electric vehicle sales poised to increase 17.5 percent year-on-year globally to bridge 41.2 million units in 2029, electric vehicle tyres are expected to facilitate a further drop in rolling resistance while employing sustainable raw materials, technologies and manufacturing processes. 
A sustainable EV tire design should consider the whole lifecycle of the product. Tires can be composed of well over 100 different raw materials. These are mixed and the rubber compounds are machined resulting is several components of the tire construction. EV tires are expected to be stronger and lighter, with less rolling resistance due to its importance in CO2 emissions and fuel consumption. 
A key challenge being the development of tyre formulations for electric vehicles with the tread compound that is more resistant to abrasion, it is the instant torque availability that is necessitating tyres that may look like ICE vehicle tyres but are quite different in the way they handle traction and aid a longer drive range. There is the issue of kerb weight as well, not to overlook the new environmental pressures for durability and abrasion resistance. 
Interestingly, new opportunities are being created on the vehicle engineering and dynamics side as well as on the side of electric vehicle tyre development and manufacture. 
Starting with materials that are broadly classified as ‘renewable’ (can be sustained on time) and as ‘recycled’ (re-used and made from recovered end-of-life tyres), it is the tandem mixers that are producing more homogeneous rubber compounds, including tread compounds that employ optimised silica fillers.
Tyres for electric vehicles are demanding the use of triple or quadruple extruders for treads and sidewalls as per the vehicle weight, application and dynamics. Roller head or roller die units are also being used to produce inner liners as a single or multilayer sheet
In terms of textile coating of steel cord components in e-vehicle tyres, four-roll and Z-type calendars are used. Also, full tyre assembly machines that can produce tyres to tighter tolerances, higher specs such as superior uniformity and sans operator invention. 
With electric vehicle tyres and ICE vehicle tyres being tested and validated differently primarily because of the higher load bearing capacity and low rolling resistance, electric vehicle tyres are made up of a different (softer) rubber compound than regular tyres with an eye on less noise, mentioned a testing expert at an OEM that is increasingly producing electric vehicles in India. 
Pointing at an electric passenger vehicle the company launched in India recently, he averred, “Softer compounds are used to ensure less rolling noise and better transmission of torque from the motors to the road.” 
With finer tolerances in need, optical machine vision systems for end-of-line quality inspections, including new technologies such as X-rays to check steel belts, cords and bead reinforcement are increasingly used. 
They are used to check for air bubbles in inner liners as well. Advances in tyre design and manufacture include new developments in simulation software to model the performance of new designs quickly. This is without material input cots. 
AI is being increasingly used to ensure superior analysis. AI is also used to automate manufacturing process as part of Industry 4.0 workflows. 

Henkel Launches Non-Fluorinated Anti-Fingerprint Coatings For Automotive Displays

Henkel Loctite AF 8810

German chemical major Henkel has introduced a new portfolio of anti-fingerprint (AF) coatings, comprising Loctite AF 8810 and Loctite AF 8812, developed without the use of per- and polyfluoroalkyl substances (PFAS) or fluorine ingredients.

The launch addresses tightening global regulations in Europe, the US and Asia regarding PFAS, providing manufacturers with surface coating alternatives that do not rely on these substances.

The products utilise silicone-based, low-surface-energy technology to ensure performance across different materials. Loctite AF 8810 is intended for plastic display cover lenses, while Loctite AF 8812 is designed for glass surfaces, meeting a 9H hardness standard. These coatings are engineered for automotive touchscreens, where screen durability and optical clarity are essential for user interaction.

Technical specifications indicate that the coatings provide a low coefficient of friction for touch interactions and maintain hydrophobicity after prolonged UV exposure. During testing, Loctite AF 8812 demonstrated durability by maintaining consistent water contact angles after 5,000 abrasion cycles. The range supports mass-production application methods such as spray and physical vapour deposition (PVD), with thermal curing times starting at 30 minutes.

Deckard Sorensen, Vice-President of Optical & Conformal Coatings at Henkel, said, “The transition away from PFAS is accelerating globally, and our customers need high‑performance alternatives that meet demanding specifications without adding process complexity. With Loctite AF 8810 and AF 8812, we deliver excellent durability, optical performance, and user comfort formulated without PFAS ingredients – enabling automotive customers to meet the evolving needs of the market and the regulatory landscape at the same time."

AUMOVIO India Surpasses 10 Million Airbag Control Unit Production Milestone

Aumovio India

Tier 1 automotive supplier AUMOVIO India has announced that it has surpassed a new production milestone of manufacturing 10 million Airbag Control Units (ACUs) at its Bengaluru plant.

The facility, which commenced ACU production in 2016, supplies automotive manufacturers in India and exports to markets including Japan and Korea. The achievement was marked alongside the inauguration of a new Tire Pressure Monitoring System (TPMS) production line and the introduction of the Integrated Safety Control Module (ISCM).

The Bengaluru site has transitioned from manual assembly to an automated manufacturing environment to increase throughput and consistency. This evolution is paired with a localisation strategy where a majority of ACU components are now sourced from within India. These developments are intended to establish the facility as a central hub for safety systems within the Asia-Pacific region, supporting the requirements of global automotive original equipment manufacturers (OEMs).

AUMOVIO became an independent entity in September 2025 following a spin-off from Continental’s automotive group. The company reported sales of EUR 18.5 billion in FY2025 and maintains a global workforce of 82,000 across more than 80 locations. Its portfolio includes sensor solutions, brake systems, and software architectures for autonomous and connected mobility.

Prashanth Doreswamy, President & CEO, AUMOVIO India, said, “This milestone reflects the steady scale-up of our manufacturing operations over the past decade. Our transition towards increased automation, along with a strong focus on localisation, has enabled us to improve efficiency and build a more resilient supply ecosystem, while continuing to deliver high-quality, safety-critical systems to our customers.”

Skoda Auto Volkswagen India Commences Production Of New Taigun

Volkswagen Taigun

Skoda Auto Volkswagen India (SAVWIPL), one of the leading passenger vehicle manufacturers, has announced the start of production for the new Volkswagen Taigun from its Pune facility. The model is part of the group's strategy to manufacture vehicles in India for both domestic and international markets.

The Taigun is produced with high levels of localisation at the Chakan facility. Since its introduction in 2021, the company has manufactured over 143,000 units of the model in India. Approximately 30 percent of this total production has been exported to global markets.

The vehicle is engineered to meet European driving dynamics and maintains a 5-star safety rating. The updated iteration includes design changes and features intended to improve convenience based on consumer feedback.

Piyush Arora, Managing Director & CEO, Skoda Auto Volkswagen India, said, “The start of production of the new Volkswagen Taigun underscores the maturity of our world-class manufacturing ecosystem in India. Our Indian manufacturing facilities are geared to deliver global-quality vehicles with high levels of localisation, enabling us to respond quickly to what customers demand in India and in export markets. The Taigun stands as a perfect example of this approach, engineered in line with Volkswagen’s global benchmarks and produced in India with a sharp focus on efficiency, quality, and safety. As we roll out the new Taigun, we are further solidifying India’s position as a strategic production and export base for the Group.”

Nitin Kohli, Brand Director, Volkswagen India, added, “Since its launch, the Taigun has been instrumental in strengthening the brand’s SUV strategy. It has played a pivotal role in bolstering our product portfolio for discerning Indian buyers and their aspirations. The new Taigun is central to our strategic plan for the model line-up that will drive meaningful growth. The start of production for the new Taigun at our Chakan facility is a moment of great pride for us. It continues to signify our commitment to the Indian consumers who choose to own premium German-engineered products. We are certain the new Taigun will build on the success of its predecessor and elevate customer experience.”

Changan

Chinese automotive major Changan Automobile and CAOA have inaugurated an automated production line in Anapolis, Brazil, marking the start of local assembly for the Changan UNI-T SUV.

The ceremony was attended by President Luiz Inacio Lula da Silva and Vice-President Geraldo Alckmin, signaling a phase of industrialisation and mobility investment in Brazil.

The inauguration initiates a USD 950 million investment cycle for 2026-2028, which adds to the earlier USD 570 million invested since 2023. Total investment in the Anapolis facility reaches USD 1.52 billion with the plant now equipped to have an annual production capacity of 90,000 units.

The UNI-T was developed over three years by a team of 200 Chinese and Brazilian engineers. Key technical features include:

  • Powertrain: A 1.5 Turbo GDi BlueCore Flex engine, calibrated by CAOA to operate on any ethanol-petrol blend.
  • Testing: The vehicle underwent 200,000 km of durability testing across various Brazilian climates.
  • Digital Features: A localised Portuguese voice control system and connected cockpit tailored for the domestic market.
  • Future Roadmap: Changan plans to introduce hybrid and electrified variants, supported by the federal government's MOVER programme.

The company expects to open over 60 dealerships across Brazil during 2026 to support its expanded sales footprint.

Zhu Huarong, Chairman, China Changan Automobile Group, said, "For Changan, Brazil is not only a place to invest, but a land where we committed to building a long-term future."

Carlos Alberto de Oliveira Andrade Filho, Co-President, CAOA, added, "The UNI-T represents far more than a new model. It demonstrates that Brazil can establish itself as a global hub for high-technology automotive engineering and production."