The What will happen when no driver in year 2022? Who will drive?
Driverless cars are a transformative technology that
could have important implications for society, national security, the economy,
and the environment. On May 8, the Center
for Technology Innovation and the
U.S. Department of State hosted a panel of
experts to discuss the potential for driverless cars domestically and abroad.
The potential benefits of autonomous vehicles are exciting but innovators and
government officials must first overcome several barriers to change.
A driverless car (sometimes called
a self-driving car, an automated car or an autonomous
vehicle) is a robotic vehicle that is designed to travel between destinations
without a human operator. To qualify as fully autonomous, a vehicle must be
able to navigate without human intervention to a predetermined destination over
roads that have not been adapted for its use.
Companies developing and/or testing driverless cars
include Audi, BMW, Ford, Google, General Motors, Volkswagen and Volvo. Driverless
test involved a fleet of self-driving cars -- six Toyota Prii and an Audi TT --
navigating over 140,000 miles of California streets and highways. A single
accident occurred during one of the infrequent occasions when a human was
driving. Another test of over 1000 miles was completed successfully with no
human intervention.
Here’s how the
future trend of car/lorry is driverless work:
Ø The
“driver” sets a destination. The car’s software calculates a route and starts
the car on its way.
Ø A
rotating, roof-mounted LIDAR (Light Detection and Ranging - a technology
similar to radar)
sensor monitors a 60-meter range around the car and creates a dynamic 3-D map of
the car’s current environment.
Ø A
sensor on the left rear wheel monitors sideways movement to detect the car’s
position relative to the 3-D map.
Ø Radar
systems in the front and rear bumpers calculate distances to obstacles.
Ø Artificial
intelligence (AI)
software in the car is connected to all the sensors and has input from Google
Street View and video cameras inside the car.
Ø The
AI simulates human perceptual and decision-making processes and controls
actions in driver-control systems such as steering and brakes.
Ø The
car’s software consults Google Maps for advance notice of things like landmarks
and traffic signs and lights.
Ø An
override function is available to allow a human to take control of the vehicle.
Proponents of systems based on driverless cars say
they would eliminate accidents caused by driver error, which is currently the
cause of almost all traffic accidents. Furthermore, the greater precision of an
automatic system could improve traffic flow, dramatically increase highway
capacity and reduce or eliminate traffic jams. Finally, the systems would allow
commuters to do other things while traveling, such as working, reading or
sleeping.
There is no generally accepted definition of a
driverless car. The phrase connotes a car with total autonomy. Cars today
already include automated technologies including anti-lock brakes, cruise
control, lane assist, and active parking assist. There is no bright line for
the number of automatic features a car must have before it may be described as
“driverless.”
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