Video Exclusives


Dynamic tire testing

Sentury

XSensor has developed a new high-speed tire sensor to provide tire design and test engineers with accurate footprint pressure data on a timescale of milliseconds during dynamic analysis

Click here to watch the video


Inside Arctic Falls' Indoor Flex facility

Sentury

Raw footage taken in the new test hall at the Swedish proving ground, scheduled to open later this month

Click here to watch the video


Michelin launches recycling campaign

Sentury

The French tire maker has unveiled its ambitious future recycling strategy to ensure that by 2048, all of its tires are manufactured using 80% sustainable materials, and 100% of all end-of-life tires are recycled.

Click here to watch the video


Who developed the Magic Formula Tyre Model widely used for the analysis of tire behavior?

Industry Opinion

« back to blog listings

Indirect TPMS could be the key to intelligent tires

The progression from inserting a basic chip into the tire, to the smart tire, and on to the intelligent tire, has been discussed widely over the last 10 years and particularly by Federico Mancosu in recent editions of TTI. The disappointing lack of real progress over this relatively long period of time, as compared with computer technology developments for example, could be put down to the usual reluctance toward change shown by the automotive industry. But it may just be that the industry has got its timing right.

The technology to insert chips into tires to record all the tire sidewall details is currently available and it is surely a simple matter to add distance traveled, tire age and a measurement of tire fatigue based on running temperature, pressure history and mileage. To have all this data as a print-out on the annual vehicle inspection seems a more logical approach to tire safety than the regulators have managed to date.

A standardized tire scanning system would give greater information and be more comfortable than being on one’s hands and knees checking the usually unreadable tire sidewall lettering.

If, or when, tread depth is added, we will be at a stage where we may consider the tire as a self-regulating safety item, not based solely on its new condition, but through its service life. This is a much more practical approach to regulation, I believe, and one that is readily achievable.

The conflict between the direct and indirect approaches to TPMS seems to be becoming resolved with the indirect system having improved its vehicle dynamics software and being increasingly favored by OEMs and in the aftersales/service sectors.

It is to be remembered that the indirect system is based on individual tire revolutions and the dynamic forces applied to the vehicle during the various operations in service conditions.

This development is of particular interest because it appears that progress in the development of the intelligent tire has slowed because of the need to insert sensors into the tire and install the appropriate electronics required for transmission of data.

We are able to collect the relevant data from the tire as related to safety in service at least annually, but we are apparently unable to achieve a reliable intelligent tire; that is, one that can assess the tire-to-road friction and perhaps be proactive in actual road use. However, with the advances in understanding
the vehicle’s response to tires in, for example, the monitoring of inflation pressure, it would seem that this approach could be taken further to actually assess tire-to-road friction and the tire’s structural integrity. It takes little imagination to see that the intelligent tire may be achieved through the vehicle rather than through the tire itself.

So, back to the timing of these developments. Research is showing that the wireless car is achievable. The weight and cost saving of removing the vehicle’s wiring loom can be readily appreciated. Running the car through wi-fi and/or Bluetooth software technology fits perfectly with indirect TPMS and is an easier methodology to achieve the intelligent tire. In effect, the car becomes the computer and, as such, would be capable of reading many tire properties.

I appreciate that in these Last Words I have entered into a little speculation. However, I believe I am not alone in this line of thinking, as witnessed by the attendance at the Vehicle-and-Tire Systems short course at the last Tire Technology Conference.
I would also direct interested parties to a careful study of the presentation made by Bernd Schuchhart of Dunlop SRI during the conference’s first session.

 

Comments:

There are currently no comments.

If you would like to post a comment about this blog, please click here.
RECEIVE THE
LATEST NEWS


Your email address:



Read Latest Issue

Read Latest Issue

Read Latest Issue

Web Exclusives

Arctic Falls' Indoor Flex facility now operational
The grand opening of Arctic Falls' new Indoor Flex facility, which will offer new tire and vehicle testing possibilities, is scheduled for the end of June.
Read Now

ETRMA consolidates used tire management data for 2016
Data gathered by the ETRMA from 32 countries in the EU shows that 94% of used tires in 2016 were collected and treated
Read Now

BKT in R&D tie-up with Kultevat
Indian tire giant BKT has entered into a research and development partnership with US biotechnology firm Kultevat to further the use of TKS rubber as a substitute for natural rubber
Read Now

Completely truckworthy
Bridgestone America's director for commercial tire development, Mitchel Kritzell, gives an update on the SuperTruck II program
Read Now

Q&A: Sam Visaisouk, CEO, Tyromer
The Retread Tire Association (RTA) speaks with Tyromer CEO, Sam Visaisouk, about the testing of its new tire-derived polymer recycled rubber product in truck and passenger car tires
Read Now


Supplier Spotlight

Supplier SpotlightWe are building a list of leading suppliers covering all aspects of the tire industry. Want to see your company included? Contact olivia.campbell@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the tire technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to rachel.evans@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email olivia.campbell@ukimediaevents.com