Rover-Based Non-Prehensile Manipulation for Improved Mobility, Scientific Exploration, and Terrain Shaping on Planetary Surfaces

ProtoInnovations, LLC is developing a rover-based non-prehensile manipulation (RBNPM) control architecture and associated algorithms, tools, and metrics to maximize the mobile manipulation capabilities of robotic rovers using existing actuated degrees-of-freedom (DoF) such as wheel rotation or steering. These new or improved capabilities allow rovers to change the environment around them to improve terrainability, perform new scientific investigations, or accomplish basic construction tasks without the need for complex, high-DoF manipulators.In Phase I of this SBIR the RBNPM control architecture was thoroughly developed along with metrics for the evaluation of RBNPM actions. Functional validation of this architecture was performed via field testing on a rovernbsp;and in simulation. Preliminary analysis of RBNPM actions was performed to verify the feasibility of the specific RBNPM actions trenching and digging. Results from Phase I show that trenching and digging behaviors are possible on a rover with no dedicated trenching or digging manipulators.Phase II of this SBIR will take the development from open-loop RBNPM actions to closed-loop controllable RBNPM actions, and create new RBNPM actions with low-DoF passive or actuated implements. At the end of Phase II, a more complete prototype RBNPM architecture for mobile manipulation along with controllers and tools for specific RBNPM actions will be produced.nbsp;