The car-to-x system warns of road works, congestion,
obstacles and dangerous weather
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It's no longer the stuff of science
fiction. We are being promised the next generation of cars will talk and network
with others on the road, looking around corners, and even through lorries.
Vehicles equipped with "car-to-x" technology, should warn of hazards far
beyond the vision of the driver including traffic jams further along a motorway
or a vehicle making an emergency stop up ahead.
The organisation behind the technology is Frankfurt-based Safe Intelligent
Mobility Testfield (Sim TD), a consortium of vehicle manufacturers with
factories in Germany.
Mercedes Benz-maker Daimler is leading the project and BMW, Audi, Volkswagen,
Ford and Opel are also involved.
They have already held the world's largest field test of car-to-car
communication around Sim TD's home city: 500 drivers signed up to test the tech
and clocked up a total of 1.7 million km (1.1 million miles).
Motorcycles can also be integrated into the car-to-x
system
Sim TD says you can expect to see the first talking cars on the road in 2015.
Vibrating steering wheel
There are few conspicuous new features. In fact, from the outside, you can't
even tell you're looking at a talking car.
Inside, the biggest clue is an extra monitor mounted on the dashboard.
Integrated electronics built into the car send sounds and images onto the device
to flag up information or warnings to the driver.
If a situation gets more urgent, an alarm wails and the screen flashes red.
“Start Quote
If you have smoother traffic, you use less
fuel”
End Quote Dr Christian Weiss Project leader, Sim TD
Audi is testing other mechanisms, including a vibrating
steering wheel and force feedback pedals - a pedal which pushes back or vibrates
when the driver tries to accelerate.
"That will get the driver's attention," says Robert Manz, an Audi developer.
"Most of this information is only important to the driver. You don't want to
alarm all the passengers."
It's not just about intelligent cars. Interactive traffic signs and traffic
lights equipped with sensors will also talk to each other and swap information
with cars in the area.
Intelligent traffic lights can tell a car well in advance what speed will get
him through the next green traffic light. Or if you're waiting at a red light,
your car can tell you how long the wait will be. It could even scout out a free
parking place for you.
The technology can alert motorists if another vehicle
has broken down on the road ahead
"This system has huge benefit potential," says the project leader, Dr
Christian Weiss.
"If we succeed in making traffic more fluid, we improve mobility.
"That also has an impact on the environment. If you have smoother traffic,
you use less fuel."
Saving lives
Germany could save an estimated 11.4bn euros ($15bn, £9.6bn) in congestion
and accident-related costs, according to Dr Weiss.
"We'll see a big improvement in safety if we have systems like this on the
road," adds Felix Deissinger, a BMW motorbike expert.
Nearly 3.500 people die on Germany's road per year. Cars crashing into unseen
motorcyclists are the most common type of accident.
"Vehicle-to-vehicle communication means the car gets the info that a
motorcycle will approach, long before he can see the motorcyclist," explains Mr
Deissinger.
To further minimise the risk of collision BMW is developing what it calls
"conspicuity enhancement" - a feature that makes bright lights flash on a
motorcycle if it detects a crash is still likely despite other warnings.
BMW has also devised a head-up display to project information onto its cars'
screens.
In vehicles equipped with the car-to-x technology, it can display
high-contrast warnings about strong winds, icy roads or motorway concrete
buckling in the heat.
The firm says using a head-up display halves the amount of time it takes for
drivers to switch their attention from the road to the read-out
information.
Multiple personalities
Car-to-x relies on a mixture of wi-fi and 3G mobile connections. Berlin's
Fraunhofer Focus Institute has helped ensure they all work together.
The data is not stored anywhere and the test drivers should not be concerned
about implications for their privacy, according to the institute's Ilja
Radusch.
BMW plans to project warning signs over its cars'
windscreens
"We use pseudonyms," he says.
"Instead of one identity, each car has a thousand identities, with them
changing each second. So no one can track you."
According to Sim TD, only 5% of cars on an area's roads need to use its
system for there to be a positive impact on traffic and safety.
In Germany, that would mean two million cars equipped with the tech.
Achieving that goal may depend on the cost of installing it. A price tag has yet
to be announced.
Meanwhile, Sim TD says it plans to fit the first motorway with compatible
electronics by 2015. It says the tech will let drivers on the
Vienna-to-Rotterdam route know about upcoming traffic jams.
"Car-to-x will play a role in every market in the future," promises project
leader, Dr Weiss, adding that tests are already underway in the US, and talks
have begun with officials in Japan and China.