Energy efficient robot
| DWPI Title: Robot i.e. humanoid bipedal robot, has locomotion subassembly comprising speed reducing transmission system having bobbin coupled to motor, pulley, first cable coupling bobbin to pulley and second cable coupling bobbin to pulley |
| Abstract: A locomotion subassembly for a biped robot is disclosed. The locomotion subassembly includes several unique energy transfer mechanisms and arrangements for efficiently powering the motion of the robot. |
| Use: Robot i.e. humanoid bipedal robot. Can also be used as a quadruped and hexapod robot and a legged robot for riding unpowered vehicles e.g. bicycles, skateboards or roller skates. |
| Advantage: The robot utilizes synthetic ropes to provide a greater ratio of tensile strength to minimum allowable bend radius so as to enable smaller and lighter weight packaging and increased transmission efficiency, while operating silently. The robot provides gear reductions so as to result in efficient energy use by minimizing energy loss to friction, heat, noise and excessive drivetrain accelerations and to achieve effective dynamic walking by effective torque control at joints. The robot utilizes optimization tools to explore the space and select a fixed gear ratio within the desired range that minimizes electrical input energy. |
| Novelty: The robot has a locomotion subassembly comprising a speed reducing transmission system having a bobbin coupled to a motor, a pulley and a first cable coupling the bobbin to the pulley such that the first cable rotates the pulley in a first direction when the bobbin is rotated. A second cable couples the bobbin and the pulley such that when the bobbin is rotated. The second cable rotates the pulley in a second direction opposite the rotation in the first direction urged by the first cable. The bobbin comprises grooves for winding the first and second cables. |
| Filed: 7/8/2015 |
| Application Number: US14794666A |
| Tech ID: SD 13052.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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