"If you have a massive electrical problem it's possible that you could cut off all the commands out to thecontrolsurfaces, " said aeronautics expert John Hansman.
Thecontrolsurfaces, acting independently or together with a variable angle of attack of up to 20 degrees (front) and 40 degrees (rear), move the car's center of aerodynamic balance around to compensate for the forces of pitch, roll, yaw and high-speed lift.
Using a force control system reacting to the pressure on the feet, HyQ can navigate and traverse irregular surfaces and adjust its pace to overcome obstacles of different sizes and shapes.
V4, where the light reflected from a surface is compared with that reflected from surrounding surfaces, in order to control for relative rather than absolute brightness.