Gm Global Technolgoy Operations, Inc.

Hrl Laboratories, LLC

Derek W Mitchell

Heiko Hoffmann

David W Payton

Darren J Earl

Described is a system for a system for autonomous robotic manipulation. The system is configured to receiving a selected task from a task file library. The task is associated with causing a robot end effector to perform an action with a particular item, such as picking up an item. The selected task is transformed into a state machine. Thereafter, the system executes the state machine and, in doing so, causes the robot end effector to perform the selected task.

System and method for quick scripting of tasks for autonomous robotic manipulation

A robotic system includes an end-effector, an input device, and a controller. The input device is operable for collecting data defining a position and a velocity of a dynamic obstacle in an environment of the end-effector. The dynamic obstacle has an arbitrary shape. The controller is in communication with the end-effector and is programmed to execute a method and thereby receive a set of inputs via the input device, including the position and velocity of the dynamic obstacle. The controller computes a contour function defining the closest allowed distance and direction between the end-effector and the dynamic obstacle using the Gilbert-Johnson-Keerthi algorithm, and controls the end-effector via an output command to thereby avoid contact between the end-effector and the dynamic obstacle.

Dynamic obstacle avoidance in a robotic system

A robotic system includes an end-effector and a control system. The control system includes a processor, a dynamical system module (DSM), and a velocity control module (VCM). Via execution of a method, the DSM processes inputs via a flow vector field and outputs a control velocity command. The inputs may include an actual position, desired goal position, and demonstrated reference path of the end-effector. The VCM receives an actual velocity of the end-effector and the control velocity command as inputs, and transmits a motor torque command to the end-effector as an output command. The control system employs a predetermined set of differential equations to generate a motion trajectory of the end-effector in real time that approximates the demonstrated reference path. The control system is also programmed to modify movement of the end-effector in real time via the VCM in response to perturbations of movement of the end-effector.

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Calabasas, CA, United States of America

Derek W Mitchell