V2V: What are vehicle-to-vehicle communications and how do they work?

BMW 3D Car2Car CityScenario

V2V: What are vehicle-to-vehicle communications and how do they work?
Vehicle-to-vehicle communications moved one step closer to reality this week with the Obama administration’s plans to push the technology forward.

The February 3rd announcement outlines a set of proposed rules would be announced for comment by the time this administration departs in 2017, with hopes that sometime around 2020, cars will communicate with each other and alert drivers to roadside hazards ahead. What happened this week was a plan by the National Highway Traffic Safety Administration to have a plan.


Simply put, the first generation of V2V systems would warn the driver but not take control of the car. http://icsw.nhtsa.gov/safercar/ConnectedVehicles/

Later implementations would improve to brake or steer around obstacles and eventually merge with self-driving cars. Here’s our rundown of V2V technologies and some of the implications…

Vehicle-to-vehicle (V2V) communications comprises a wireless network where automobiles send messages to each other with information about what they’re doing. This data would include speed, location, direction of travel, braking, and loss of stability. Vehicle-to-vehicle technology uses dedicated short-range communications (DSRC), a standard set forth by bodies like FCC and ISO. Sometimes it’s described as being a WiFi network because one of the possible frequencies is 5.9GHz, which is used by WiFi, but it’s more accurate to say “WiFi-like.” The range is up to 300 meters or 1000 feet or about 10 seconds at highway speeds (not 3 seconds as some reports say).

Read more: http://www.extremetech.com/extreme