I have previously discussed how commonly used empirical tire models are essentially complex curve fits; an optimization process is employed to tune the parameters of the model such that which overlays the tire test data.

This is a solid approach as it typically results in a model that can be shown to accurately represent the test conditions, while also being fast to solve and easy to use. The only issue is that while the resulting model can be solved at any load case, its accuracy can only be relied upon for load cases within the tire’s tested range.

Continue reading Why operating range is vital to tire modeling at Tire Technology International.

There are a lot of tire models available in the world. Most are closed source (or black box), meaning the program code behind them is not available to end users. This is understandable as the code can easily be licensed and its development paid for. Everyone’s got to make a living! This approach, however, makes it much harder to get the best out of the models – if you can’t see their internal workings, it’s harder to maximize their usefulness.

Other models, such as Magic Formula, are effectively open source, with the equations published in books and journal papers.

Continue reading Greg Smith on the strengths and drawbacks of open source software at Tire Technology International.

In previous columns I’ve discussed some of the challenges that come with modeling the behavior of tires. Expanding on that, one of the single most challenging areas to model is the tread pattern. It’s also one of the most critical areas, as it affects the tire’s handling ability – the single most important performance aspect to get right.

Ultimately, cars are machines for moving stuff about, which requires the generation and control of lateral force – exactly what handling is. Other performance factors are important, but they come afterward. Good ride characteristics, for example, are important in making the driver more comfortable, but that’s less important than actually getting them where they’re going.

Continue reading Why the tread pattern is one of the most difficult tire elements to model virtually at Tire Technology International.

Managing intellectual property can be a headache in most industries, but it can be particularly challenging when working between tire companies and vehicle manufacturers – in fact, managing the communication between the two is often a full-time job in itself. Naturally, both sides want to protect their IP; however, this can cause problems when trying to get anything done. If an OEM wants a manufacturer to design a tire for a new car, the tire maker will invariably want more information on the new vehicle – something an OEM may be reluctant to divulge. Similarly, if an OEM asks for more detail on a compound used in a new tire, the tire maker may be wary of sharing too much proprietary information.

Continue reading How can tire and vehicle makers navigate the intricacies of an OE tire development program without putting IP at risk? at Tire Technology International.

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Continue reading Quick quiz: Who developed the Magic Formula Tyre Model widely used for the analysis of tire behavior? at Tire Technology International.

The new initiative launched by the supplier aims to outline how carbon black can help society to become more efficient in its use of resources, facilitating consumption and production

Continue reading USTMA promotes R&D and innovation at Tire Technology International.