Programmable actuator controller for power positioning seat or leg support of a wheelchair
First Claim
1. Actuator controller for operating a selected one of a plurality of known seat and leg support position actuators of a wheelchair, said actuator controller comprising:
- a digital controller; and
an actuator driver circuit coupled to said digital controller and capable of driving any one of said plurality of known seat and leg support position actuators, said digital controller programmable with data representative of a selected one of said plurality of known seat and leg support position actuators and operational parameters thereof, and operative to control said actuator driver circuit to drive said selected one of said plurality of known seat and leg support position actuators in accordance with said parameter data.
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0 Petitions
Accused Products
Abstract
An actuator controller for operating a selected one of a plurality of known seat and leg support position actuators of a wheelchair comprises: a digital controller; and an actuator driver circuit coupled to the digital controller and capable of driving any one of the plurality of known seat and leg support position actuators, the digital controller programmable with data representative of a selected one of the plurality of known seat and leg support position actuators and operational parameters thereof, and operative to control the actuator driver circuit to drive the selected one of the plurality of known seat and leg support position actuators in accordance with the parameter data.
111 Citations
20 Claims
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1. Actuator controller for operating a selected one of a plurality of known seat and leg support position actuators of a wheelchair, said actuator controller comprising:
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a digital controller; and
an actuator driver circuit coupled to said digital controller and capable of driving any one of said plurality of known seat and leg support position actuators, said digital controller programmable with data representative of a selected one of said plurality of known seat and leg support position actuators and operational parameters thereof, and operative to control said actuator driver circuit to drive said selected one of said plurality of known seat and leg support position actuators in accordance with said parameter data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Actuator controller for closed-loop controlling one of a seat and leg support position actuator of a wheelchair, said actuator controller comprising:
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a digital controller coupleable to a communication bus of said wheelchair and operative to receive a desired actuator position signal from said communication bus;
an actuator driver circuit coupled to said digital controller and responsive to control signals from said digital controller to drive said position actuator; and
a position sensor circuit for receiving an actuator position signal from a position sensor of said position actuator, said digital controller operative to read said actuator position signal from the position sensor circuit, said digital controller operative to perform a closed-loop control of said position actuator using said actuator driver circuit based on said desired and read actuator position signals. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. Wheelchair control system comprising:
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a system controller;
a communication bus;
a plurality of actuator controllers, said system controller and said plurality of actuator controllers coupled to said communication bus for transmitting and receiving signals thereover, each actuator controller of said plurality for closed-loop controlling a corresponding one of a plurality of position actuators of the wheelchair, each said actuator controller comprising;
a digital controller coupleable to said communication bus and operative to receive a desired actuator position signal transmitted by said system controller over said communication bus;
an actuator driver circuit coupled to said digital controller and responsive to control signals from said digital controller to drive said corresponding position actuator; and
a position sensor circuit for receiving an actuator position signal from a position sensor of said corresponding position actuator, said digital controller operative to read said actuator position signal from the position sensor circuit, said digital controller operative to perform a closed-loop control of said corresponding position actuator using said actuator driver circuit based on said desired and read actuator position signals of said position actuators. - View Dependent Claims (17, 18, 19, 20)
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Specification