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Old 11-14-2008, 03:13 PM   #1
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Default Toyota and Honda start testing vehicle-to-vehicle communications systems

Earlier this year we reported on a vehicle-to-vehicle communications system being developed by a consortium of European manufacturers, and now Toyota and Honda have joined the growing ranks of carmakers working on the future safety technology. The two carmakers have now announced plans to show off their own vehicle-to-vehicle communications systems in a few days at the World Congress on Intelligent Transportation Systems.

Honda's vehicle-to-vehicle communication demonstration, using an Acura RL sedan, has been designed to showcase the potential for inter-vehicle communications as a means to reduce vehicle collisions at intersections.

Through the use of autonomous sensors and vehicle-to-vehicle radio communication, the goal of the Honda system is to warn drivers of potential dangers at intersections in situations where the driver's view of the oncoming vehicle is obstructed by buildings, trees, fences or large trucks. In the event of an impending collision, the system can provide audio, visual and tactile alerts to the driver.

Similar to the Car-2-Car communications system being developed by Volkswagen and other European manufacturers, Honda's system will use a short range communications system at a frequency of 5.9 gigahertz (GHz). The system allows each vehicle to broadcast a "heartbeat" signal that includes key information such as speed, acceleration and brake status, which can be detected and interpreted by other vehicles in close proximity.

Toyota will also be showing off a similar system, with plans to reveal a "smart car" that also uses the 5.9 GHz frequency to create both car-to-car and car-to-infrastructure communications. Toyota's demonstrations will include pedestrian and vehicle collision avoidance sequences, as well as a traffic congestion monitoring system that informs a driver of the optimum speed at which to maintain a constant traffic flow by sequencing all green-light traffic signals.

Other similar systems in the works include versions by General Motors, Mazda, Ford, Nissan, Volvo, and BMW.
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Old 11-14-2008, 03:17 PM   #2
Pete Holt
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That would be sweet if they could sequence all-green traffic lights. Not only safer, but that would save a lot of gas too.
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Old 11-15-2008, 11:49 AM   #3
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Originally Posted by Pete Holt View Post
That would be sweet if they could sequence all-green traffic lights. Not only safer, but that would save a lot of gas too.

speaking of green lights.. small rant...

a light in a town not far from me seems like it was set back in the late to mid 90's it's a Left turn arrow light.. but the issue is a long light of people wanting to turn left spills out into the lane to turn left and the lane to go straight.. so what happens is when the left arrow is still red and the light to go straight is green, cars that want to make the left turn are blocking people that want to go straight..

Now here is the fun part... when the arrow light switches to green it's only green for about 5 seconds and it's red again..

Some lights could be re-evaluated to prevent issues like this and long idling.
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Old 11-15-2008, 04:27 PM   #4
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So, if you installed this system in an SRT-4, it'd tell the other cars...

"hey, my driver's a douche. He just street raced in a school zone. I'd stay away."
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Old 11-15-2008, 04:32 PM   #5
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another way to intrude on our lives

and another way the US will wiggle in "pay by the mile"

NO THANKS!!!!!!!!!!!
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Old 11-15-2008, 07:58 PM   #6
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It would make cruise control on the highway very interesting. The car's AI would know when other cars are slowing.
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Old 11-15-2008, 08:12 PM   #7
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I'm not quite sure why car companies try to develop systems like this. I mean isn't this a lawsuit waiting to happen if the device malfunctions?
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