Virtual technology in tyre development

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  • June 25, 2020
Virtual technology in tyre development

In that respect, tyre industry should continue to improve New Product Development (NPD) process to a different level by expanding R&D efforts. Consequently, innovative tyre technology and tyre knowledge will be extremely important to compete in the future, more than at any time in the past. As we all know, there are several key processes to design and to produce the right tyres to meet the customer requirements.

In the new tyre development process, duration is getting more crucial and all manufacturers are trying to shorten it by using modern simulation and modeling technics. TIC - Tyre Industry Consulting - and AccuPredict LLC believe in “Speed to market with right solutions and innovation.” In that respect, Virtual Technologies enable companies to launch world-class product faster and more cost effectively than ever. Therefore, we recommend using the Virtual technology which is essential to understand how all the various parts of the tyre interact and add up to whole. With modeling and simulation, you will foresee the full effects of cascading events as well as novel events that our mental models cannot even imagine.   

Tyre, as a component of a vehicle, can largely influence the performance of the vehicle. On the other hand, to design tyres with high quality and high-performance, not only the characteristics of tyres such as tread pattern, tyre structure, material, local stress and thermal properties are also important, but the running conditions such as the load of a vehicle, the road roughness, temperature changes are equally critical. Considering the rapid advancement in electric vehicle, tyre will be the major source of noise for the modern vehicles. European regulation on tyre pass-by (PB) noise has been restricted to be less than 72 dB (A) and set the future noise level at a limit of 68 dB(A) after 2025 (phase 3). Tyre models based on virtual technology provide a comprehensive evaluation of key aspects of tyres. To ensure that the tyres are designed with high quality and good durability, and also in compliance with regulation, simulating tyres and predicting the tyre performance under various conditions can largely improve the tyre develop efficiency. The following tyre simulation and modeling are a few examples to showcase the vast potential of the tyre virtual technology.

  • Components of tyre simulation - creation of rim, carcass, ply, and belts, reinforcement modeling, tread pattern meshing method, element types, etc.
  • Footprint and force/moment prediction – Quasi-static footprint prediction with normal force, lateral force, torsion, and camber; steady-state rolling with brake and acceleration, cornering, and camber, etc.
  • Integration of tyre structure and tyre Noise, Vibration and Harshness (NVH) – pitch sequencing, tyre profile and structure, tread blocks, void area, non-skid depth, angle of groove, shape of footprint, local stress distribution and tyre uniformity can be investigated in combination with tyre impact noise, air-pumping noise and cavity noise to obtain the tyre radiation noise model for tyre design optimisation.
  • Rolling resistance – Deformation analysis, radial stiffness (R deflection) prediction, tread pattern and side wall stiffness may be included to a finite element model for specific tyre designs and then simulate the energy loss under different tyre running conditions to obtain the optimal rolling resistance level.
  • Thermal stress and fatigue analysis based on fluid dynamics - fluid-solid coupling simulation, creation and evaluation of detailed tread design, and dynamic meshes for tyre structure and rotating machinery fields will collectively provide precise understanding of the thermal distribution of given tyres. In particular, the analysis can predict the thermal stress of tyre molds accurately.

We do recommend applying Virtual analysis in design and development phases regarding; sizing, carcass line design, pattern design, footprint, tyre structure, materials, running conditions, durability, rolling resistance, noise and others.

TIC-Tyre Industry Consulting and AccuPredict LLC Subject Matter Experts (SME) have vast hands on experiences for above topics and ready to support your activities. We provide specialised technical solutions for your challenges and we guarantee a high standard of professional-ethical principles that we have kept and developed for years.

In addition to those services, we also provide Simulation and Modeling Technical Courses that design to give your workforce the skills, mind set and competences. Our trainers guide participants through a learning journey featuring workshops, case studies and the latest educational technologies.

 

 

Haluk Kizilay has built over 30 years an impressive career that spans everything from tyre design & development to strategic planning, marketing and business development with global leaders including Bridgestone Turkey and Cooper Tire & Rubber. In 2019, he established TIC (Tire Industry Consulting). Haluk is one of the authorised judges of EU Horizon 2020 work programme and one of the registered researchers of TUBITAK, the Scientific & Technological Research Council of Turkey. In this article he focuses how to enhance New Product Development (NPD) process.

Jun Han Ph.D. has more than 15 years of experience in solving mechanical problems related to structural sound and vibration, tyre NVH, Computational Fluid Dynamics (CFD), thermal, and numerical modelling. His exceptional modeling work won him the Outstanding Contribution to Innovation Award in 2019. He was a Senior Engineer at Cooper Tire & Rubber Company (OH) and has served as the core technical support for Cooper Tire’s Global R&D centers in the US, China and Europe. His work in reducing total tyre pass-by noise won him the prestigious Chairman’s Award at Copper in 2016. In 2020, Jun Han established his own technology company AccuPredict LLC

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    India To Bode Well For HF’s Curemaster

    HF

    HF’s Curemaster represents a significant shift in tyre curing technology, aligning with the industry’s move towards sustainability and efficiency. As the tyre market evolves, major manufacturers are prioritising premium segments, creating demand for advanced curing solutions. HF’s electric curing technology offers greater precision, efficiency and flexibility, particularly for high-end tyres. With digitalisation, predictive maintenance and automation, Curemaster addresses key industry challenges while maintaining cost competitiveness.

    Curing presses are essential in tyre manufacturing as they shape and vulcanise raw rubber into a durable, high-performance tyre. Advanced curing presses enhance efficiency, reduce defects and support evolving tyre technologies. While most curing presses use steam as its power source, the trend is now shifting towards electric.

    HF’s Curemaster is one such solution that leverages electric heating for enhance curing efficiency. While the company had already rolled out the Curemaster for truck and bus tyres, the passenger tyre variant was under development.

    Speaking to Tyre Trends recently, HF Group Executive Vice President Warren Rudman noted that the Curemaster for passenger car tyres is now fully developed and available for sale. It comes in two versions including electric and the conventional steam press. Additionally, there is a hybrid option that combines both steam and electric curing for greater flexibility.

    Alluding to market opportunities for Curemaster, Rudman informed, “The Indian market presents a huge growth opportunity and is a key focus for us. However, we also see strong potential in premium tyre manufacturing segments in other regions. The new Curemaster, with its electric heating, offers unique benefits, particularly in terms of quality and efficiency.”

    The company is positioning the new Curemaster at the same price as conventional steam presses, aligning with its long-term strategy to drive adoption without cost barriers. “Customer response has been overwhelmingly positive, with a strong order intake already secured. The first units will be delivered for installation in August across South America, Europe and Asia, marking a global launch after one year of development,” said Rudman.

    The Curemaster builds on insights from HF’s earlier truck and bus tyre (TBR) version. “Lessons from the TBR model led to significant value engineering, reducing production costs and enhancing design efficiency. These refinements have been integrated into the new Curemaster, ensuring it meets customer expectations on both performance and pricing,” revealed the executive.

    PEEKING INTO SPECS

    The Curemaster lineup now includes 14-to-24-inch models for passenger car tyres, alongside 60-inch versions for truck and bus tyres, making it suitable for both mass production and premium segments. Its flexibility allows manufacturers to produce a full range of tyres efficiently, regardless of volume or segment.

    Commenting on customer demands, Rudman informed, “Customers are increasingly prioritising sustainability, driving the demand for eco-friendly curing processes that reduce energy consumption and carbon emissions. At the same time, cost efficiency remains a critical factor with growing pressure to balance affordability and high performance. Manufacturers must innovate to deliver solutions that optimise costs without compromising quality. Additionally, operational efficiency is a key focus as customers seek advanced technologies that enhance energy savings and streamline processes. The push for greater productivity through automation, predictive maintenance and data-driven insights is shaping the industry’s future, making efficiency-driven innovations essential for staying competitive.”

    The order book for Curemaster is strong with a surge in orders during the first two months of the year. The executive anticipates continued momentum throughout the year, driven by increasing global demand for advanced, sustainable curing solutions.

    FORWARD INTEGRATION

    According to Rudman, digitalisation is playing a crucial role in enhancing the efficiency and reliability of curing presses. “Digitalisation provides real-time visibility into production processes, allowing manufacturers to monitor efficiency and product quality continuously. With a clear overview of operations, manufacturers can identify inefficiencies and ensure production targets are met. The HF XPLORE digital portal offers access to critical data at all times. It provides insights into machine health, predictive maintenance alerts and production performance. The system helps track efficiency, detect potential failures and optimise operations by identifying areas for improvement,” he said.

    Artificial intelligence is also slated to play a key role in electrical heating, ensuring stable temperature control within the platens. Machine learning is being developed for predictive maintenance, helping to forecast bladder life and detect potential failures before they occur. These technologies are part of the company’s development roadmap, focusing on improving reliability and efficiency in curing press operations.

    He also noted that as tyre compounds evolve, curing requirements will change, making electrical curing a more suitable solution. Unlike steam-based systems, where temperature is directly linked to pressure, electrical curing allows independent control of both factors. This flexibility is crucial for processing new materials that may not tolerate traditional curing conditions.

    “In steam curing, the relationship between pressure and temperature is fixed. For example, achieving a temperature of 200 degrees Celsius requires increasing the pressure to 20 bar. With electrical curing, temperature and pressure are completely separate, enabling curing at lower temperatures while maintaining the necessary pressure levels. This capability is particularly significant for future materials, which may require curing at 160 degrees Celsius but at much higher pressures,” explained Rudman.

    The shift towards electrical curing is expected to gain momentum, particularly for high-end and specialised tyres that demand more advanced curing strategies. While steam curing will continue to be used for lower-segment applications, the upper range of the market, especially where sustainability and material innovations are key factors, will require the precision and adaptability that electrical curing provides.

    OVERLAPPING TECHNOLOGIES

    There is a clear trend in the market where customers are seeking more customised solutions rather than standard off-the-shelf curing presses. Manufacturers now have unique requirements including features like electrical curing, digitalisation, automated loading and unloading and seamless integration with factory infrastructure and tyre transportation systems. As a result, the demand for tailored solutions is increasing, making flexibility a key factor in the adoption of new curing technologies.

    “Curemaster is designed with upgradeability in mind, ensuring that tyre manufacturers do not have to replace entire presses when looking to modernise operations. Even older HF curing presses that have been in service for more than 20 years can be upgraded to electrical curing without altering the mechanical structure. This allows manufacturers to transition to more efficient curing technology while retaining the existing equipment. At the same time, the new Curemaster is available as a fully electric system from the outset, offering a ready-made solution for greenfield projects,” averred Rudman.

    Nonetheless, the biggest business potential currently lies in retrofitting existing curing presses rather than selling entirely new equipment. “Many customers prefer upgrade kits that allow them to transition to electrical curing while maintaining current production setup. While greenfield projects present a significant opportunity for new fully electric presses, the greater demand at present is for retrofit solutions, as it provides a cost-effective way to improve efficiency and sustainability without major infrastructure changes,” he added.

    PROCESS OVERVIEW

    Most curing press suppliers have introduced electrical curing solutions. There are two main approaches to electrical heating, which are electromagnetic (induction) heating and resistive heating.

    Electromagnetic heating method involves placing a coil outside the tyre to generate heat. However, there are concerns about how this method interacts with the tyre’s internal bead wire and breaker package. Since the long-term impact of electromagnetic fields on tyre integrity has not been fully tested or verified, there are still some uncertainties regarding its effects on tyre quality.

    In contrast, resistive heating, which the company employs, places coils directly inside the plate, ensuring controlled and targeted heating. This method eliminates any risk associated with electromagnetic interference and allows precise temperature application only where needed. While both technologies are viable, resistive heating offers greater reliability and consistency in maintaining tyre quality.

    “One of the key advantages of electrical curing is its rapid heating and cooling capabilities. The nitrogen used in the process can be heated from 20 degrees Celsius to 250 degrees Celsius in less than 20 seconds and cooled back down in the same time frame. This is achieved through continuous nitrogen circulation, where the system directs the flow through either the heater or the cooler as needed. In terms of curing time, electrical heating currently matches steam curing with a typical cycle of 10 minutes per tyre. However, there is significant potential to reduce curing time by 10 to 15 percent as electrical systems can operate at higher temperatures and offer more precise control over the process,” informed Rudman.

    Nonetheless, steam curing has a predominant risk of mishaps in the bladder, which could lead to an explosion. The Curemaster is designed with a fully encapsulated dome, ensuring that any pressure build-up remains contained. If a failure occurs, the pressure is released downward instead of sideways, reducing the risk of injury.

    The locking system is also unique. Even if there is a total power or hydraulic pressure loss, the press cannot open unintentionally. This containment and locking mechanism ensure a high level of safety during operation.

    CHALLENGES AND OPPORTUNITIES

    According to the executive, the biggest challenge in the curing press business comes from cost competition as lower-cost manufacturers pose a significant pricing challenge. However, from a technological standpoint, the company offers unique features that set it apart from competitors. While competitors may have cost advantages, HF’s focus on advanced technology, automation and digitalisation allows it to capture market share by offering superior functionality and efficiency.

    The passenger car and truck segments remain the company’s primary focus owing to the highest growth potential. Additionally, the company sees an emerging opportunity in motorcycle and bicycle tyre curing, particularly with electric heating technology. HF is among the first to introduce electrical curing for these segments, positioning itself as an industry leader.

    While HF is active in the passenger and truck segments, it has opted not to enter the off-the-road tyre market due to its relatively small size and intense competition. The segment still relies heavily on traditional mechanical presses, making it less attractive for innovation-driven solutions.

    The company continues to refine the Curemaster lineup by introducing new materials, insulation techniques and design concepts. The company is particularly focused on increasing automation to enhance efficiency and reduce operational costs.

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      Beontag And Kumho Tire Join Hands For RFID-Enabled Tyres

      Beontag And Kumho Tire Join Hands For RFID-Enabled Tyres

      Beontag, one of the world’s largest manufacturers of self-adhesives and smart tags such as RFID, NFC and BLE, has entered into a collaboration with Kumho Tire to develop RFID-enabled tyres for commercial and passenger vehicles.

      The partnership will see new Kumho tyres use Beontag's TyreTag RFID technology. Traceability will be possible with the RFID-enabled tyres from the point of origin to recycling and disposal. Following years of research and development, according to both the companies, the new RFID-enabled tyre is very robust and dependable, able to survive high temperatures and pressures over the course of years of intensive use. The new TyreTag-enabled tyres' traceability will also adhere to the forthcoming Ecodesign for Sustainable Product Regulations (ESPR), which will need Digital Product Passports (DPPs) and be in force for tyres starting in 2028–2030.

      Thiago Horta, Global VP of Digital Transformation, Beontag, said, “We are extremely proud to share what we have achieved in our partnership with Kumho Tire. Through rigorous testing, we have worked hard to develop the necessary technology and durability capabilities in these RFID-enabled tyres; I look forward to continuing this journey with Kumho Tire for years to come”

      Jihon Park, Assistant Manager with Kumho Tire, said, “Kumho Tire has been producing RFID-enabled tyres since 2013. Beontag’s technical expertise and collaborative approach were instrumental in helping us meet our rigorous standards and enhance our technology. We look forward to delivering even greater quality and reliability to our customers around the world.”

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        Goodyear Launches Online Tool To Support Fleet Cost And CO₂ Reduction

        Goodyear Launches Online Tool To Support Fleet Cost And CO₂ Reduction

        Goodyear has launched the Value Simulator, an online tool designed to assist fleet operators in visualising the possible financial and environmental advantages of upgrading their mobility and tyre solutions. The simulator is now available on the company's truck tyre website and is a component of Goodyear Total Mobility, the company's end-to-end solution for commercial fleets.

        According to Goodyear, the tool takes into account typical fuel consumption and cost, fleet size and breakdown frequency, vehicle mileage and maintenance trends and the kind of transportation and route profile. After data is entered, the simulator instantly estimates the potential decrease of CO2 emissions, maintenance and fuel costs, and annual breakdown-related cost savings. Additionally, customers can customise simulations according to their own fleet characteristics.

        The CO₂ reductions are based on theoretical fuel usage using EU tyre label values as a baseline; real savings may vary depending on factors including driver behaviour, vehicle condition and road conditions. Additionally, based on user interaction, the simulator suggests appropriate Goodyear goods and services. These recommendations can be used as a springboard for talks with Goodyear's staff in order to do a more thorough study and develop a customised fleet plan.

        Maciej Szymański, Marketing Director Commercial at Goodyear EMEA, said, “At Goodyear, we are committed to supporting transport fleets in maximising efficiency, increasing competitiveness and promoting sustainability. The Goodyear Value Simulator confirms our dedication to customer-centric solutions and helps fleet managers to make informed decisions that aim to drive tangible benefits for their operations. With the Goodyear Value Simulator, fleets can visualise the potential financial and environmental impact of adopting Goodyear Total Mobility. From reducing breakdown costs to enhancing fuel efficiency, our solutions are designed to deliver real value to our customers.”

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          Webfleet Launches New PRO X Driver Terminal For Fleet Professionals

          Webfleet Launches New PRO X Driver Terminal For Fleet Professionals

          Webfleet, Bridgestone’s globally trusted fleet management solution, has launched its new flagship Driver Terminal, the PRO X, designed specifically for truck and van fleets.

          By providing direct tablet access to Webfleet fleet management services, the PRO X links drivers and companies to streamline work administration. Fleets can utilise a variety of sophisticated Webfleet features, such as workflow management, electronic Proof of Delivery (ePOD) and two-way communication between drivers and fleet managers thanks to the pre-installed Webfleet Work App. They can also access other Webfleet services, such as Cold Chain, Remaining Drive Times and OptiDrive ranking, which allows drivers to view peer performance.

          Van and truck fleets may enjoy the best-in-class professional navigation with the newest technology, like smart warnings for traffic or low-emission zones, major points of interest for trucks and EVs and live ETA reporting, with easy access to TomTom GO Fleet.  Additionally, when paired with OptiDrive, the motorist gets immediate feedback to help them drive better. Pre-installing maps is now simple, and they are updated automatically every month. With its wide anti-glare screen, sturdy construction, detachable battery and user-friendly controls for instant access to essential programmes, the new high-performance Driver Terminal helps professional drivers both in-cabin and on-site.

          With an integrated Mobile Device Management (MDM) system that enables fully remote management of the devices' home screen, app auto-start and other features, it is configured for a quick roll-out in the field and can be tailored to fit various corporate demands. Because it is Android Enterprise Recommended and integrates Webfleet's and TomTom's expertise in sophisticated navigation, devices may be more rapidly customised to meet user demands. Beginning in March 2025, the PRO X will be sold in Europe, Australia and New Zealand, with other territories to follow later this year.

          Annick Renoux, Vice President, Webfleet Europe, said, “At Webfleet, we are always committed to delivering smart solutions that enhance the working conditions and safety of our customers and their drivers, powered by the latest technology. That’s why we are proud to introduce the new PRO X – now with even more functionality to help fleet managers streamline their operations, boost efficiency and strengthen their connection with field teams like never before.”

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