Tyre pressure monitoring systems for all types of vehicle

Best accessory award

Best Accessory award

Award Ceremony

Peter Samwell (left) of TyrePal receives the “Best Accessory” Award from Rob Ganley, Editor of Practical Motorhome

At the 2011 Practical Motorhome Awards, TyrePal won the “BEST ACCESSORY” category for their tyre pressure monitoring system TD1200, the first time that such an award has been given. The judges said:

“Considering how important the condition of a ‘van’s tyres is to its performance, comfort and safety, it pays to keep a close eye on your tyre pressures. And that’s why we think TyrePal’s pressure monitoring system is a complete steal for the price .. it’s very simple and hugely effective.” Rob Ganley, Editor of Practical Motorhome adds “It’s a cliché to say the only things between your motorhome and the road are four small patches of rubber, but it’s also a valuable truth. TyrePal’s clever monitor allows you to easily keep an eye on your tyres and helps avoid disaster.”

The presentation was made at a special ceremony in front of members of the industry and Peter Samwell of TyrePal was there to receive the glass award.

John Pye, Managing Director of TyrePal said “We are delighted to have been given this award by the prestigious Practical Motorhome magazine which we see as recognition of the importance of our tyre safety accessory to motor caravanning”.

The model which won the award, the TD1200-AX04, enables tyre pressures to be wirelessly monitored from your driving seat. It uses valve-cap sensors to transmit accurate pressure and temperature data from up to 4 tyres.  Installation takes approximately five minutes – there’s no need to remove the tyres, no wiring and generally no need to even re-balance the wheels. Simply screw the lightweight sensors onto your tyre valves in place of the normal caps, fit the anti-theft collars if required and position the monitor in view of the driver.

“Vigilance Necessary – a frightening experience”

After having a super weekend with friends near Preston, we were happily towing our little C1 car on the A-frame behind our motorhome. Unknown to us, one of the tyres had blown or punctured on the towed car. The tyre was completely destroyed and came off the rim; it then started to rub against the fuel inlet pipe, causing it to perish. It was brought to our attention by a couple of passing motorists who indicated there was a problem by pointing to the car. We have a rear camera able to be seen from the dashboard – and still had no idea of what was happening to us!

We pulled into the emergency lane; thankfully the tyre was on the nearside and we were able to change it as quickly as possible and be on our way without any disruption to any other vehicle. The following day when we went to put fuel into the car, we realised there was a big problem as fuel was spilling all over the forecourt. It was a costly and frightening experience and since then we have acquired a remote sensor to attach to all four tyres to indicate any changes of pressure or temperature loss.

Hoping what happened to us will help other motorhomers to be vigilant about what is going on behind them.

The letter by John & Sheila Corless, Cumbria was published in MMM August 2011 letters page 17

Tyre pressure effects driving performance

Performance cars

Track testing

It’s widely known that tyre pressure effects driving performance. When tyres are underinflated, a car is more difficult to steer and slower to respond. There’s less feeling of connection with the road, and the reactions of rear tyres seem to lag behind the front tyres. At TyrePal, we are interested in the impact of tyre pressure on performance, so we decided to look for some specific data from tests on real cars

Track testing

Tests were carried out on two 2003 BMW 330Ci coupes: one with recommended pressures of 29psi front and 33 psi rear, the other with 20psi front and 23 psi rear.

The car with underinflated tyres was more than 2 seconds slower around a test course representing a 7% loss of performance. On a wet track, the underinflated tyres resulted in unpredictable handling forcing the driver to slow down to retain control, producing lap times several seconds slower than the car with properly inflated tyres.

Which? Tests

Which? Carried out a series of performance tests on under-inflated tyres using a Peugeot 308 as a typical family hatchback and deflated one or more tyres to see how it affected performance.

In every case, fuel economy was worse and the ABS (anti-lock braking system) worked less well when the tyres were under-inflated. There was a big effect on cornering ability when a front tyre was soft, but less for a rear tyre.

From an original pressure of 2.4 bar, a reduction of just 0.5 bar in a front tyre led to a 7% loss of  lateral grip, while a 1 bar reduction led to a 33% loss of  lateral grip.

The effect of an under-inflated rear tyre was most significant in an emergency lane change manoeuvre. In this case, the fastest speed for the lane change was reduced from 44 to 39mph for a pressure reduction of 1.5 bar.

When all tyres were deflated equally, loss of performance was similar to having a single rear tyre under-inflated, though the impact on the ABS was less.

Michelin reports

Michelin have also carried out tests on steering and braking.

They found that a bend that can be taken at 62 mph at a tyre pressure of 29 psi (2.0 bar) can only be taken at 54 mph at 15 psi (1.0 bar).

The braking distance is also reduced. Braking from 56mph to 43mph (silly numbers in mph, but more rational 90 to 70 in km/h ) took an extra 5 metres – more than a car’s length – with the same pressure reduction.

Performance in the wet

Tyre pressure has a massive effect on performance in the wet with a sharp increase in the danger of aquaplaning when the pressure is 30% or more below the recommended level. This is because the area of tyre in contact with the road reduces with under-inflation. The pictures show how the area of tyre in contact with a wet road is reduced with under-inflation.

Tyre tread pattern

Wet footprint 2 bar, 100% contact

Wet footprint 1.5 bar 50% contact

Wet footprint 1 bar, 25% contact


 
 

Blowout closes M25, critically injures 3

A lorry tyre blowout was blamed for the horrible crash on the M25 between junctions 7-8 that left three people seriously injured and the motorway closed on Friday 5th August. 30 mile tailbacks continued into the weekend while lanes were closed for recovery and repair work.

It is very unusual for the cause of a road accident to be released immediately, but the press and TV news  widely reported the police spokesman who stated that the accident was caused by a tyre blowout. In spite of the under-reporting, statistics show that tyre problems are the number one cause of vehicle failure leading to a serious accident, and there is evidence that tyres are disproportionately responsible for the most serious accidents.

Blowouts are not random occurrences – they always have a cause. Generally an under-inflated or overloaded tyre puts excessive strain on the tyre sidewall, which overheats and then collapses. A TyrePal system gives warning before this critical stage is reached – often many miles before – so the driver has a good chance of dealing with it before it results in an accident.

 

TyrePal at Burghley

TyrePal will be exhibiting in the Horse Village at the Burghley Horse Trials 1st to 4th September and showing the TyrePal TA22 system which can be used to monitor the tyres on all kinds of horse boxes.

Tyre problems are a big issue for horse box owners. Specialist horse transport breakdown provider, Jon Phillips of PHP rescue, says that 30% of horse box and trailer breakdowns are due to tyre problems, and the Horse and Hound forums contain many frightening references to tyre blow outs.

The TyrePal system continuously monitors the tyres, even while driving, and sounds an alert for the driver in the event of any problem such as low pressure, high pressure or overheating. The system can be fitted to any kind of horse box, whether a trailer or a large motorised horsebox.

Two killed, 35 hurt in tyre blowout bus crash

Tyre blow-out was blamed for a fatal bus crash near Rochester, New York State, today (18 July 2011).

The tour bus was travelling to Niagara Falls when the driver lost control and veered down a grassy bank into woods. A preliminary report from New York State Police spokesman Mark O’Donnell indicated that a tyre blowout might have caused the wreck.

Tyre pressure monitoring has been mandatory for all new light vehicles such as cars and vans in the USA since 2008, but the legislation has not so far been extended to vehicles over 4,536 kilograms (10,000 pounds) or those with dual wheels on any axle. Tyre pressure monitoring cannot prevent tyre blow-outs but it can significantly reduce the risk.

Blow0uts frequently occur when tyres are soft or overloaded. This places an unsustainable stress on the the sidewall, which overheats and then collapses in a blowout.

Should I choose TA22 or TD series?

TA22

TA22 monitor

TA22

TA22 is optimised as a safety alert system that will quickly give warnings when things are going wrong, with a clear indication of the nature of the problem and which tyre is affected.

It’s a ‘set and forget’ system that sits quietly in the background unless it is needed.  There’s no continuous display of tyre pressure, but you can press a button to display the pressure and temperature of each tyre in turn. Alert levels are set automatically from the target tyre pressure that you input for each individual wheel.

The picture shows all possible tyre positions being monitored ( up to 22), but once set up, it just displays the wheels you chosen to monitor.

Where the transmission distance from wheel to monitor exceeds about 7 metres, a booster can be added to improve the signal.

TD1000 and TD1200

Tyre pressure monitor with valve-cap sensors

TD1000 and TD1200

TD1000 and TD1200 are four-wheel systems optimised for cars and vans. They give a continuous display of the pressure of all four tyres in real time. Sensors are pre-registered to the individual system and to a specific wheel location, so it is extremely quick to set up.

You can set separate threshold levels for upper and lower pressure alerts and the setting you choose applies to all four wheels. The setting is easily changed if you need to alter the thresholds for different loading conditions.

TD2200

6-wheel tyre pressure monitor

TyrePal TD2200 six-wheel system

This is a six-wheel system with continuous display of all six wheels. It’s quick to set up and you can set thresholds for each axle, so it is good where a car and trailer have very different pressures. The alert levels are also easily changed, so this system is ideal for car and caravan combinations where you need to change pressures when towing.

The picture shows the display set up for six wheels on three axles, but it can also be set up for twin wheels on the rear axle, or to display just four wheels.

 

 

New tyre safety monitor

TyrePal TA22 monitor

TA22 is a new tyre pressure monitoring system that produces alerts, but without the continuous display of tyre pressures that we get with the TD series.

It’s a versatile system that can be set up for anything from 2 to 22 wheels, and a very nice feature is that you can add sensors to extend the system and can add a booster if the signal is weak. Prices start at £125 for a 2-wheel (trailer) system or £165 for four wheels.

TyrePal TA22 is ideal for trailers, caravans, motorhomes and horse boxes, where you don’t need to constantly view your tyre pressures, but simply want to be warned if there is a problem.

More details of TA22 here

Soft tyres cause accidents and breakdowns

Help changing tyre

Hundreds of people are killed or seriously injured in the UK every year in accidents caused by tyre failure.

And tyre problems are one of the biggest causes of roadside breakdowns.

TyrePal can help you:

  • See tyre problems before they occur
  • Optimise tyre performance
  • Save fuel
  • Extend tyre life
  • Reduce CO2 emissions

Blowouts don’t just happen

Blowouts nearly always start with a puncture or soft tyre.
Then the tyre wall overheats and disintegrates.

Tyre Blowout

It’s easy to pick up a puncture, but it needn’t turn into a blow-out.

A TyrePal can warn you before it gets critical.

 

TyrePal off road in Zambia

Tyre pressure monitor off-roadThis off-road vehicle in Zambia faces extreme conditions, but is fitted with a standard TyrePal system to keep track of tyre pressures. It works well despite being covered in mud, wading through rivers, and even when attempting to rescue a baby elephant!

Advanced warning

Steve Tolan, Director of Chipembele Wildlife Education Trust in Zambia decided to fit a TyrePal after a friend ‘shredded’ a brand new tyre on their large Swiss-built Pinzgauer 4×4. Under these off-road conditions, a flat tyre is not always obvious from the driving seat and Steve realised that by monitoring tyre pressures, they would have advanced warning of punctures. The cost of a TyrePal could be recovered by saving just one tyre.

Standard system

Steve runs the four tyres on the Pinzgauer at around 36 and 42 psi, so the standard car TyrePal system was suitable. After six months, Steve commented “The system is still working well, despite the terribly muddy, wet conditions we often suffer here in the rains.”

Through mud and water

“After the first heavy rains of the year, these were the conditions facing the Pinz when we tried to check the track from our home to the settlement of Mfuwe 10 miles away. We never made it, and got stuck several times, having to self-recover using ‘waffle’ tracks and a Brano handwinch. You can see the TyrePal valves are underwater, but they worked fine.”

Young elephant

“Recently the Pinzgauer was involved in the attempted rescue of a young elephant that had fallen into a deep chasm caused by water erosion and it had become stuck. It had been there at least 4 days when we found it, so it was dehydrated and hungry. We fed and watered it, then set about digging it out, at first by hand. I parked my Pinzgauer over the gulley to shade the animal and he put his powerful trunk on the Tyrepal valve. I thought he would rip it off but he didn’t.”

Baby elephant and off-road vehicle

“After dark, a bulldozer arrived and dug across the gully so that the Pinz could pull the elephant into the opening. Armed Scouts were then left on the animal, as there were lions around. In the morning we returned with a digger to try and lift him to his feet but we think that he had nerve damage as a result of lying on his back legs for so long, and sadly he failed to stand, so was put out of his misery to prevent further suffering.

Chipembele Wildlife Education Trust

The Chipembele Wildlife Education Trust is a registered charitable trust for local children to learn about the value of their natural environment. It was established by Steve and Anna Tolan, who emigrated from England to Zambia in 1998 and are now deeply involved in school improvement projects and in anti-poaching work and forestry protection. They are authorised to rear and rehabilitate orphaned and injured wild animals. www.chipembele.org

TyrePal

TyrePal provide tyre pressure monitoring systems for all kinds of vehicles and trailers. Valve cap sensors transmit temperature and pressure data from the tyres to a monitor in the cab that displays information and sounds an alarm for any abnormality. Under normal road driving conditions, the system helps to save fuel and tyre wear, and can give advance warning before a damaging blow-out