. Improvements in tread performance, rolling resistance reduction, handling, and durability have been well documented. As vehicles have evolved over the past 20 years, tyres have had to adjust along with them. Larger vehicles, higher performing vehicles, and light-weighting, along with the introduction of electric vehicle technology, are all trends that have steered development over the years.

Through all of it, several key areas in tyre testing have remained steady. Tyres need to meet minimum safety and performance standards as dictated by governments and vehicle OEMs.

•          Tyre durability testing depends on a variety of industry test standards such as endurance testing on a drum.

•          Wet stopping distance, tread wear, and winter traction testing have very specific on-vehicle testing requirements.

•          Rolling resistance testing utilises a couple standardised test methods to measure the amount of hysteretic energy loss from a rolling tyre on a drum and specified surface.

•          Force and moment testing on a moving belt has been used to characterise tyre performance for vehicle design as it relates to cornering and other use conditions.

As time has passed, tyres have been asked to do more and more on vehicles. While the testing methodology has remained similar, conditions have been altered to accommodate these vehicle performance expectations. And while reducing testing time has always been a goal, many of these standard tests still require the same amount of time to conduct.

Because much of tyre testing has been standardised over the years, many facets of the industry can use tyre testing data as a unifying benchmark for evaluating specific performance criteria. For OEMs, the data is valuable to the vehicle development process. For tyre companies, the data is used in a marketing context to compare and contrast features for consumers. Trucking fleets use the data to optimise their operations and reduce costs and fuel consumption. Consistency in testing methodology provides the industry with a unifying foundation of benchmarking data.

That being said, older methods are always being reviewed for obsolescence. For example, NHTSA in the United States is currently considering the removal of test standards for bead unseat and plunger energy testing that were originally developed for bias ply tyre designs.

There are always efforts to look at novel ways of improving the tyre testing process and increasing speed to market. For example, experimenting with different surfaces for drum and belt testing of tyres continues to take place in an attempt to more closely replicate an infinite number of real-life surface conditions. Man-made snow has been developed to extend testing seasons and try to mirror natural snow in an indoor environment. As the industry learns more about how pressure loss impacts rolling resistance and fuel efficiency, more methods have been developed to measure how well different inner liner materials maintain steady tyre pressure. Tyre companies can more readily choose the right materials of construction to suit performance requirements by using material property data from finite element analysis.

Many of these testing methodologies are trending towards virtual testing and modelling of tyre performance. And while tyre modelling has been around since the 1980s, the amount of data and range of data measurement required has increased exponentially.

The key automotive trends driving tyre development going forward continue to be electrification and autonomy. These trends will bring their own challenges to testing and validation. Electrification will present some traditional challenges with new applications, such as managing heavier loads, more aggressive torque / tread wear, reducing noise, and lowering rolling resistance. New materials and constructions are being developed to accommodate these unique challenges for electric vehicles. Tyre tuning will become exceptionally important as second-life tyres are brought into the mix, as consumers will want consistent performance.

From the perspective of autonomous vehicles, sensors and tyre intelligence are being added to provide new data sources for autonomous systems. Tyres equipped with these sensors will have to undergo the same endurance, durability, and performance tests to ensure the sensor can function as designed when faced with the same rigors as the tyre. Depending on where the sensors are mounted in the tyre/wheel assembly, normal tyre dynamics could adversely affect the accuracy of measurements or transmission of data to the vehicle. As aftermarket tires and sensors are developed, testing and validation should follow the same standards to simplify service and compatibility for consumers. Ease of replacement will be critical, as this directly affects the consumer and dealers.

There will continue to be developments and ongoing efforts to improve the fidelity and range of tyre testing data. These improvements will strive to speed up development cycles and improve virtual models going forward. However, the established standards and protocols continue to provide a steadfast and reliable set of tools that development teams, independent evaluators, and testing organisations can use to address new challenges and ensure that the ultimate goal of safety is met for regulatory bodies and consumers.

Dr. James A. Popio is Vice President of Operations - North America of the Smithers Materials Science and Engineering division. Prior to his current role, he was Vice President and General Manager of Smithers in the United Kingdom. Before that, he was General Manager and Director of Engineering at Smithers' Tire and Wheel Testing Laboratory in Ravenna, Ohio.

Jim has worked with the tyre and rubber industry for 20 years and has spent his professional career working for and/or with tyre companies, tyre dealers, automotive OEMs, industry suppliers, manufacturers, standards organisations and government agencies. 

Jim has extensive experience in tyre performance, characterisation, and methods development. His specialty areas of expertise are force and moment, endurance, aging, compliance, indoor wear, rolling resistance, and characterisation for modelling. Jim is a regular contributor to industry journals as well as a chair and speaker at major tyre and rubber conferences. Jim has a PhD in engineering and MS, and BS in mechanical engineering from the University of Akron

Al Salem Transportation & Tourism Co. (Al Salem) is reaping the benefits of Goodyear’s CheckPoint tyre monitoring technology system, which was implemented in its Dammam depot. This is a first for passenger transport companies in Saudi Arabia and builds upon the existing partnership between Al Salem Transportation & Tourism Co. (Al Salem), Goodyear and its official Saudi distributor, Al Rashed Tires.

Goodyear CheckPoint is a connected, yard-based drive-over tyre inspection system that provides fleet managers with useful information by reading vehicle data and tyre condition. Tyre pressure and tread depth examinations are time-consuming tasks that may be completed in seconds by Goodyear CheckPoint's automated system.

The system provides the ability to access data through user-friendly reports and allows Al Salem to address all their operational needs related to tyres. This decision is consistent with Al Salem's commitment to using cutting-edge technology to achieve the greatest levels of safety and efficiency, as well as the Saudi Vision 2030 aim of boosting the quality and connectedness of transportation networks.

Mustafa Alsalem, Business Development Manager, Al Salem Transportation & Tourism Co, said, "At Al Salem, our mission is to provide safe and comfortable journeys for everyone in the Kingdom. We pride ourselves on working only with industry leaders to deliver premium safety and service levels. Partnering with a leading global tyre manufacturer like Goodyear, renowned for their premium tyres and innovative digital fleet solutions, is a testament to our commitment to this mission."

Yasser Meyer, CEO, Al Rashed Tires, said, “We have a proud legacy of supporting the development of Saudi Arabia's automotive industry. Leveraging our in-depth market knowledge, we are able to localise global tyre technology, like Goodyear’s CheckPoint monitoring solutions, to empower our valued partners like Al Salem in their achievement of business goals.”

Saban Gungor, General Manager, Goodyear Middle East & Africa, said, "As a preferred fleet mobility partner, Goodyear is dedicated to delivering not only high-quality tyres but also value-added mobility solutions, like the CheckPoint tyre monitoring, to our fleet customers. We are thrilled to support Al Salem on their digitalisation journey with the adoption of this technology, setting a new benchmark for safety and operational efficiency in the Kingdom."

Vittoria, a global leader in cycling tyres and accessories, has announced opening new state-of-the-art research and development centres known as VittoriaLabs. These facilities, located in Italy and Thailand, are designed to push the boundaries of cycling technology and performance.

The VittoriaLabs will focus on developing innovative tyre and accessory solutions that enhance rider performance, safety, and sustainability. The centres will leverage advanced testing equipment and cutting-edge research methodologies to analyse and optimise product design.

“Vittoria Labs will be the engine driving our ambitions for market leadership in innovation in a future we are already shaping,” says Stijn Vriends, Chairman and CEO of Vittoria. “By combining state-of-the-art indoor and outdoor testing facilities, we can push the limits of what’s possible in cycling tyres and accessories while keeping sustainability at the core of our innovations,” adds Vanessa ten Hoff, Chief Innovation & Marketing Officer of Vittoria.

Vittoria’s investment in these facilities underscores the company’s commitment to innovation and its dedication to providing cyclists with the best possible products. By combining advanced technology with real-world testing, Vittoria aims to deliver products that meet the evolving needs of cyclists worldwide.

With the opening of the VittoriaLabs, Vittoria reinforces its position as a global leader in the cycling industry. The company’s focus on research and development, coupled with its passion for cycling, ensures that it will continue to drive innovation and set new standards in the years to come.

Webfleet, Bridgestone’s fleet management solution, has expanded its OEM.connect partner programme to include trailers. Schmitz Cargobull, a leading manufacturer of semi-trailers, is the first trailer manufacturer to join the programme.

This collaboration allows commercial fleet operators to seamlessly connect their Schmitz Cargobull trailers to the Webfleet platform through factory-fitted telematics. By eliminating the need for aftermarket hardware installations, fleet managers can save time and reduce costs.

“Trailers are the backbone of long-haul goods transportation, but managing a trailer fleet can be challenging,” says Taco van der Leij, Vice President, Webfleet Europe at Bridgestone Mobility Solutions.

“Making our proven Webfleet Trailer solution now easily accessible via OEM data, will help even more businesses with real-time data insights and actionable intelligence to maximise trailer performance. We are happy that we are collaborating with Schmitz Cargobull, offering our customers seamless integration with Europe’s leading semi-trailer manufacturer”.

Sören Danielsen, Manager, Strategy & Business Development at Schmitz Cargobull adds:  “With the TrailerConnect Data Management Center from Schmitz Cargobull, hauliers have full control over their data and can pass on selected data to third parties in an efficient way. By intelligently linking information on the vehicle, tour and order, more than just position and temperature data can be selected, processed and transmitted to third-party systems at the touch of a button in future. The TrailerConnect Data Management Center stands for connectivity and transparency. Everyone involved along the supply chain benefits from this.”

The integrated solution provides fleet operators with valuable insights into trailer performance, including location tracking, maintenance alerts and payload monitoring, said the tyre maker.

Bridgestone has joined hands with Astrobotic Technology to develop lunar rover tyres.

Bridgestone will leverage its 90 years of expertise in developing tyres for Astrobotic’s 24U CubeRover. These tyres will be designed to withstand the harsh lunar environment, including extreme temperatures and rugged terrain.

Bridgestone’s tyres will play a crucial role in enabling the rover to navigate the challenging lunar terrain.

The collaboration highlights the Japanese tyre maker’s commitment to expanding its reach into new and innovative areas of mobility. By partnering with Astrobotic, a leading space exploration company, Bridgestone aims to contribute to the advancement of lunar exploration and space technology.

The 24U CubeRover is a compact lunar rover designed to provide mobility, power and communication support for scientific instruments and payloads on the lunar surface.

As per Bridgestone, this partnership marks a significant milestone for the company as it expands its horizons beyond Earth and into the cosmos.