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US 8,412,669 B2Granted
Systems and methods for determining muscle force through dynamic gain optimization of a muscle PID controller
AssigneeLife Modeler, Inc.
InventorsMilton Scott Bergeon, David Brian Jackson, Shawn Patrick McGuan
Life of this patent
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Abstract
Systems and methods for determining muscle force are presented. Proportional, integral, and derivative control is used to simulate muscle forces for multiple muscles contributing to a kinematic profile. The simulated muscle forces arc modified by dynamic gains that are calculated in order to achieve a muscle recruitment objective such as minimizing collective muscle effort while still achieving the kinematic motion.
Claims7
A computer implemented system for simulating muscle forces, the system comprising,
- an interface module configured to obtain a muscle recruitment objective;
- an analysis module configured to determine one or more dynamic gains based on the muscle recruitment objective;
- and
- a feedback control loop module configured to determine muscle forces based, at least in part, on the one or more dynamic gains and on proportional, integral, and derivative (PID) control wherein, the analysis module is configured to determine the one or more dynamic gains at a first time interval, the feedback control loop is configured to determine muscle forces at a second time interval, and the first and second time intervals are different, and
- wherein the first time interval is greater than the second time interval.
2 more elements
Dependencies are inferred from the claim text.