Ford driverless car operates in complete darkness

12/04/2016 |

Ford has issued a statement explaining how its Fusion Hybrid autonomous research vehicle has driven with no headlights along what it calls lonely desert roads, "performing a task that would be perilous for a human driver."



It says the drive, in pitch black at Ford's Arizona Proving Ground, "marks the next step on the company's journey to delivering fully autonomous vehicles to customers around the globe."

"It's an important development," the statement continues, "in that it shows that even without cameras, which rely on light, Ford's LiDAR ' working with the car's virtual driver software ' is robust enough to steer flawlessly around winding roads.  While it's ideal to have all three modes of sensors ' radar, cameras and LiDAR ' the latter can function independently on roads without stoplights."

The statement notes America's National Highway Traffic Safety Administration data which shows the passenger vehicle occupant fatality rate during dark hours to be about three times higher than the daytime rate.

'Thanks to LiDAR, the test cars aren't reliant on the sun shining, nor cameras detecting painted white lines on the asphalt,' says Jim McBride, Ford technical leader for autonomous vehicles.  'In fact, LiDAR allows autonomous cars to drive just as well in the dark as they do in the light of day.'

To navigate in the dark, Ford self-driving cars use high-resolution 3D maps ' complete with information about the road, road markings, geography, topography and landmarks like signs, buildings and trees.  The vehicle uses LiDAR pulses to pinpoint itself on the map in real time.  Additional data from radar gets fused with that of LiDAR to complete the full sensing capability of the autonomous vehicle.

For the desert test, Ford engineers, used night-vision goggles to monitor the Fusion from inside and outside the vehicle.  Night vision allowed them to see the LiDAR doing its job in the form of a grid of infrared laser beams projected around the vehicle as it drove past.  It says LiDAR sensors shoot out 2.8 million laser pulses a second to precisely scan the surrounding environment.

'Inside the car, I could feel it moving, but when I looked out the window, I only saw darkness,' describes Wayne Williams, a Ford research scientist and engineer.  'As I rode in the back seat, I was following the car's progression in real time using computer monitoring.  Sure enough, it stayed precisely on track along those winding roads.'

This year, Ford will triple its autonomous vehicle test fleet ' bringing the number to about 30 self-driving Fusion Hybrid sedans for testing on roads in California, Arizona and Michigan.

These developments are key elements of Ford Smart Mobility, the plan to take Ford to the next level in connectivity, mobility, autonomous vehicles, the customer experience, and data and analytics.

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