HOUND, built by researchers at the Korea Advanced Institute of Science and Technology (KAIST), is a robot dog that just set a new Guinness World Record for fastest 100 meter sprint by a quadrupedal robot. This 99-pound robot started from a stationary position, and then completed its sprint in 19.87 seconds at 11.26 mph before coming to a standstill after crossing the finishing line.
The most surprising thing is that the record was achieved with a single controller trained in a simulation through reinforcement learning. Its lightweight feet, specialized for sprinting, are capable of a comprehensive range of motion, thanks to the hip and knee actuator modules being in parallel configuration, along with a belt-pulley system that transmits the knee actuation to the knee joint.
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In order to push the limits of the actuator, motor characteristics were incorporated into the simulation to make the environment as close to the real world as possible. In simulation, it can accelerate to even higher speeds, but we haven’t tested it in the real world yet,” said Young-Ha Shin, HOUND’s designer.
[Source]
