Hands free off roading anyone? Jaguar Land Rover reveals intelligent technology for rough stuffPOSTED BY Nigel Andretti ON 14 July 2016
Jaguar Land Rover’s vision is to offer autonomous driving on any terrain
Next-generation sensing technologies will be the eyes of future all-terrain autonomous cars – artificial intelligence will take capability to the next level
Ultrasonic sensors will detect surface conditions five metres in front of the car and identify grass, gravel, sand and snow before the car drives over them
Automatically slow down when the car detects bumpy terrain or standing water ahead
World-first demonstration of an ‘Off-Road Connected Convoy’ using car-to-car communication to aid progress and enhance the driver experience
JAGUAR Land Rover has demonstrated its off-road autonomous driving technology currently under development.
JLR’s head of research Tony Harper said the technology – such as the ability of on-board computers to sense changes in terrain and even obstacles suspended in the air above roadways and tracks – would have applications for both autonomous and people-driven cars.
“Our all-terrain autonomy research isn’t just about the car driving itself on a motorway or in extreme off-road situations,” Harper said. “It’s about helping both the driven and autonomous car make their way safely through any terrain or driving situation.
“We don’t want to limit future highly automated and fully autonomous technologies to tarmac. When the driver turns off the road, we want this support and assistance to continue. In the future, if you enjoy the benefits of autonomous lane keeping on a motorway at the start of your journey, we want to ensure you can use this all the way to your destination, even if this is via a rough track or gravel road.
“So whether it’s a road under construction with cones and a contraflow, a snow-covered road in the mountains or a muddy forest track, this advanced capability would be available to both the driver AND the autonomous car, with the driver able to let the car take control if they were unsure how best to tackle an obstacle or hazard ahead. We are already world-leaders in all-terrain technologies: these research projects will extend that lead still further.”
To enable this level of autonomous all-terrain capability, JLR’s researchers are developing next-generation sensing technologies that will be the eyes of the future autonomous car, the company said in a statement.
Because the sensors are always active and can see better than the driver, this advanced sensing will ultimately give a vehicle the high levels of artificial intelligence required for the car to think for itself and plan the route it should take, on any surface.
The developing technology includes “surface identification and 3D path sensing” which combines camera, ultrasonic, radar and Lidar sensors to give the car a 360 degree view of the world around it, with sensors so advanced that the car could determine surface characteristics, down to the width of a tyre, even in rain and falling snow, to plan its route.
“The key enabler for autonomous driving on any terrain is to give the car the ability to sense and predict the 3D path it is going to drive through. This means being able to scan and analyse both the surface to be driven on, as well as any hazards above and to the sides of the path ahead. This might include car park barriers, tree roots and boulders or overhanging branches, as well as the materials and topography to be driven on.”
Ultrasonic sensors can identify surface conditions by scanning up to five metres ahead of the car, so Terrain Response settings could be automatically changed before the car drives from tarmac to snow, or from grass to sand.
To complete the 3D path, branches overhanging a track, or a car park overhead barrier would also need to be identified to determine if the route ahead is clear. Overhead Clearance Assist uses stereo camera technology to scan ahead for overhead obstructions. The driver programmes the system with the vehicle’s height, which can include roof boxes or bicycles, and the car will warn the driver with a simple message in the infotainment touchscreen if there is insufficient clearance.
The company is also working on a “terrain-bases speed adaption” that uses cameras to sense bumpy terrain including uneven and undulating surfaces and washboard roads, potholes and even standing water. It is then intelligent enough to predict the potential impact of these surfaces on the car’s ride and automatically adjust speed to keep passengers comfortable.
And the third part of the development is having the ability for vehicles to communicate with each other, especially if they are out of sight around a bend or on the other side of an off-road obstacle.
In a world-first off-road demonstration, JLR connected two Range Rover Sports together using innovative dedicated short range communications technology to create an off-road connected convoy. This wireless vehicle-to-vehicle (V2) communications system shared information including vehicle location, wheel-slip, changes to suspension height and wheel articulation, as well as all-terrain progress control and terrain response settings instantly between the two vehicles.
“This V2V communications system can seamlessly link a convoy of vehicles in any off-road environment. If a vehicle has stopped, other vehicles in the convoy will be alerted – if the wheels of drop into a hole, or perhaps slip on a difficult boulder, this information is transmitted to all of the other vehicles. In the future, a convoy of autonomous vehicles would use this information to automatically adjust their settings or even change their route to help them tackle the obstacle.
“Or for the ultimate safari experience, cars following in convoy would be told by the lead car where to slow down and stop for their passengers to take the best photographs.”