Mechanical system with an active materials-based actuator

Details Mechanical system with an active materials-based actuator Mechanical system with an active materials-based actuator

2008-05-30

2011-10-04

Masinick, Michael D (Department: 2122)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Digital positioning

C700S056000, C700S060000, C700S061000

Reexamination Certificate

active

08032238

ABSTRACT:
A mechanical system selectively imparts a prescribed motion to an output load using two or more actuators, including at least one having an active material element. The output load can be a locking member when the system is a vehicle transmission, a shuttle car of a linear system, or another device. A controller determines a total motive force required for imparting the prescribed motion, and selectively commands a combination of the actuators to provide the total motive force, apportioning the total motive force between the various actuators to optimize the performance of the system. An algorithm determines which combination of the actuators is the most suitable in moving the output load, and continuously modified this combination as needed as the output load is moved. The other actuator or actuators are then selectively energized as needed to provide the total motive force depending on this suitability determination.

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