Razer's four-wheeled drive train used a skid-steering arrangement, whereby the wheels on one side of the robot rotated faster than those on the other to turn the machine.
They are often based on a "bicycle" representation, which represents a car as a two-wheeled vehicle with front-wheel drive moving on a 2-D plane.
The fleets of four-wheeled drives which ferry development experts and military officers through Kabul's muddy gridlock have vanished.
"Instead of limiting the aid we could do, if we could get more volunteers on board to coordinate, we could go so far as to send the medic unit and baby unit and some four-wheeled drives to help in Greece".
To overcome this limitation, a five-wheeled wheelchair composed of a manual wheelchair and a single-wheel drive system has been proposed (Figure 1(b)) [2].
From the basic $6,000 model, the Gator line has expanded in a decade to include four-wheel-drive models and even six-wheeled variants.
In what follows some considerations regarding the mathematical models for a class of mobile robots, namely two-wheeled differential drive mobile robots, some of the most utilized mechanical structures in mobile robotics practice, are presented.
This paper investigates the use of a follower robot as a support device for H.O.T. patients, consisting of a two-wheeled differential drive robot connected to the user by tether.
Repetitive phenomena can be collected in order to realize a global panel of random distributed events in the kinematics of a two-wheeled differential drive mobile robot and to use the statistical observations in the further analysis.
The interception-try he gifted to Joe Roff was followed by one half-wheeled, then driven, scrum and a second try for the winger.
This paper presents a systematical design and characteristic evaluation approach for constructing a one-wheeled actuator driven by one piezoelectric element.
