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Old 09-15-2011, 10:23 AM   #1
AVANTI R5
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Default Inflated Claim? Sensing Something Familiar About the Land Rover DC100’s Tires



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In the spring of 2010, Land Rover invited me to share some ideas for a new version of the brand’s go-anywhere proto-S.U.V., the Defender. I dutifully sent them a manifesto of crazed demands, and they returned a sketch of a butch little off-roader.

Land Rover just unveiled its actual Defender concept at the Frankfurt auto show, and I see that one of my off-road fever dreams actually made the cut.

Along with 2,000-horsepower electric motors and the ability to go completely submersible, I specified, “Tires have dual tread. To go off-roading, you’ll actually air up using the integral compressor. Because when the tires hit 40 p.s.i., the secondary tread — super-knobby, super-soft — deploys.”

So, that was the idea. Now, here’s a feature on the new DC100, as described by Land Rover in its press release:
Further allowing the concepts to adjust to changing conditions is a driver-deployable spiked tire system. This is operated by an electro-mechanical system mounted within the tire; activation of the technology permits air to inflate a secondary air chamber, filling pods moulded into the tread of the tire and which contain the spikes. The spikes rise just above the tread surface and fix into place for driving on packed snow and ice. When conditions have eased, the spikes can be retracted, obviating the need to carry two sets of tires or snow chains.
Hey, that’s what I said, sort of! And even if it’s not exactly the same execution, I’ll take credit, thank you. However, I see that the DC100 does not have 2,000 horsepower or the ability to float. But I think we all know what’s next on the Land Rover engineers’ checklists.
http://wheels.blogs.nytimes.com/2011...er=rss&emc=rss
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Old 09-15-2011, 10:51 AM   #2
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Didn't James Bond have that feature quite a while ago? Pffff...






(yes I would love to have that feature on my car )
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Old 09-15-2011, 11:09 AM   #3
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Because when the tires hit 40 p.s.i., the secondary tread — super-knobby, super-soft — deploys.”
This, is a bad idea. Inflate any tire to 39psi, then drive spiritedly in the warm weather, and they get hotter. Mid turn, *POINK* out come the tread and you lose grip.

I like the idea of having it driver actuated tho. Wicked cool, but I bet one tire of that specification would be more expensive than a full set of dedicated snows mounted on wheels.

--kC
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Old 09-15-2011, 11:21 AM   #4
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Why would anyone inflate the tires on their SUV to 39PSI is beyond me.
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Old 09-15-2011, 12:17 PM   #5
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I thought that was activated by the 'B' button on the steering wheel.
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Old 09-15-2011, 12:39 PM   #6
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Just slap some missiles on it and call it a day.
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Old 09-15-2011, 02:36 PM   #7
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Originally Posted by vision.dynamix View Post
Why would anyone inflate the tires on their SUV to 39PSI is beyond me.
There's the whole... the higher the pressure, the lesser rolling resistance, the better the gas mileage.

--kC
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Old 09-15-2011, 03:09 PM   #8
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Old 09-15-2011, 03:12 PM   #9
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I was just searching for that.
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Old 09-16-2011, 12:23 PM   #10
subydude
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Quote:
Originally Posted by vision.dynamix View Post
Why would anyone inflate the tires on their SUV to 39PSI is beyond me.
I'll inflate the rear tires in my truck to 43 psi for towing (knowing it will go up to 46-47psi when hot) and I know of several other people with Suburbans that do the same thing.

Granted, that's a far fetched scenario with a vehicle like this, but just throwing it out there.
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Old 09-16-2011, 10:48 PM   #11
Derbagger
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Originally Posted by Calamity Jesus View Post
I had the red one. Still in my parent's basement, but it doesn't work.
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Old 09-17-2011, 10:43 PM   #12
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what would the replacement cost be?
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Old 09-18-2011, 09:02 AM   #13
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Presumably these are the tires, or some variant...
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Old 09-19-2011, 04:48 PM   #14
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what would the replacement cost be?
More than you can afford, pal.

(not aiming at you or anyone in particular... just want to use the line from the movie )
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Old 10-11-2011, 09:53 AM   #15
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Default Land Rover DC100 and DC100 Sport Concept Cars Reinvent Defender

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The reinvention of a legend is one of the hardest challenges an automotive designer can face.



In 2015, Land Rover will reveal the successor to the current Defender and the automaker is testing the waters. At the 64th IAA (International Automobile Show) in Frankfurt, Land Rover unveiled two concept cars that are a contemporary reinterpretation of the Land Rover Defender. The DC100 and the DC100 Sport are a first view of what the new Defender may look like, but they are not “production-ready” concepts. Gerry McGovern, Land Rover Design Director, sees the two cars as the beginning of a four year journey to design a relevant Defender for the twenty-first century.

The history of the Defender dates back to 1948, when the Land Rover Series I was introduced. Advertised as a “go-anywhere” vehicle, the Series I became the export hit for the company. Sales figures for the first year were more than 50% higher than projected. Series II, Series III and Series IV (which were also called One, Ten, and Ninety) followed. In 1990, when the new Discovery was launched, the Land Rover was renamed “Land Rover Defender” (picutred).

As it is typical for concept cars,



the DC100 and DC100 Sport feature many innovations that could make it into the new Defender in 2015. RFID technology is one of them. Both cars come with a set of RFID chips built into impact and water resistant items. With a personalized RFID smart tag, the driver will be able to save personal audio, climate and seating settings. It will also allow parents to restrict vehicle power and speed when the car is activated with the RFID smart tag of their children. Another innovation is the Wade Aid system, which detects water depth through sonar. The sonar is integrated into the grille and all relevant information is displayed on the central touchscreen.

To give the vehicle the best possible “mud-plugging” performance (as Land Rover put it), the DC100 has a 2.0-liter four-cylinder diesel engine while the DC100 Sport is equipped with a 2.0-liter four-cylinder petrol engine. . Both engines are capable of being configured as parallel or plug-in hybrids. Another green feature is a eight-speed ZF automatic transmission with a more advanced engine start/stop system that was designed with hybrid versions of these vehicles in mind.



Land Rover has developed a new electronic torque vectoring system for both vehicles that promises to extend stability, traction and handling on any surface. The newl differentials those use electronic control systems to direct specific amounts of power to each individual wheel.

This has benefits both on road and off. For normal driving situations, the system, according to Jaguar, provides a sportier and safer drive and the torque vectoring works with the car’s stability programs to enhance performance. When off-roading, torque vectoring can infinitely and instantaneously send torque to whichever combination of the four vehicle’swheels has the most grip.

When driving off road, the Land Rover Terrain Response system will use a front-mounted camera to analyze the ground ahead. It can then select the appropriate setting, which is something today’s Land Rover driver does manually by selecting asphalt, grass, gravel, mud, sand, or snow. As conditions change, the system will change settings automatically.

When introduced in 2015, the new Defender will have to both preserve tradition and its reputation while offering a thoroughly twenty-first century experience. The Defender is known as one of the most robust four-wheel drive cars in the world and, only if the upcoming model can deliver these core values, will the 2015 Land Rover Defender be a true success.
video at link

http://www.thedieseldriver.com/2011/...nt-defender-2/
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