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 Title: |
WO0073101A1:
SYSTEM AND METHOD FOR CONTROL SCHEDULING[French]
[ Derwent Title ]
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Country:
Kind: |
WO World Intellectual Property Organization (WIPO)
A1 INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT i
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| Inventor: |
MORRELL, John, B.; 1365 Belmont Street, Manchester, NH 03104, United States of America
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| Assignee: |
DEKA PRODUCTS LIMITED PARTNERSHIP, Lake Shore Drive, P.O. Box 444, Stafford, NH 03101, United States of America
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| Published / Filed: |
2000-12-07
/ 2000-03-14
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| Application Number: |
WO2000US0006668
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| IPC Code: |
Advanced:
B60L 11/18;
B60L 15/20;
G05B 13/02;
H02P 5/00;
A61G 5/06;
IPC-7:
B60L 11/18;
B60L 15/20;
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| ECLA Code: |
B60L11/18; B60L11/18E; B60L15/20B; G05B13/02A2; K61G5/06A; K61G5/06B; K61G5/10H; Y02T10/70; Y02T10/70B; Y02T10/72D4;
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| Priority Number: |
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| Abstract: |
A system and method for controlling a device such that device operates in a smooth manner. The system may switch between control architectures or vary gain coefficients used in a control loop to control the device. As the architecture or gains are switched, the control signal may be smoothed so that the device does not experience an abrupt change in the control signal it receives. In one embodiment, the control signal may be smoothed by adding a decaying offset value to the control signal to create a smoothed control signal that is applied to the device.
[French]
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| Attorney, Agent or Firm: |
LOWRIE, Matthew, B. ;
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| INPADOC Legal Status: |
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European patent:
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OAPI patent:
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ARIPO patent:
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Eurasian patent:
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| Family: |
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First Claim:
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What is claimed is:
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Description
Expand description |
+ SYSTEM AND METHOD FOR CONTROL SCHEDULING
I Field of the Invention
+ Summary of the Invention
According to embodiment of the present invention, a system of converting between a first operating mode and a second operating mode in a device is disclosed. In this embodiment, the system includes a control loop which utilizes gain coefficients associated with the first operating mode to control the system in the first operating mode and utilizes gain coefficients associated with the second operating mode when operating in the second operating mode. In this embodiment, the system also includes a gain selector which causes the control loop to operate using the coefficients associated with the second operational mode at substantially the same instant that the device transitions from the first operational mode to the second operational mode.
+ Brief Description of the Drawings
Figs. I A and I B illustrate an example of a prior art wheelchair,
+ Detailed Description
Aspects of the present invention relate to various control modes for the operation of a human transport device. Each of the various modes allow for different types of control. In some embodiments, some of the modes are very responsive to user input commands while others may entirely ignore user input commands in an effort to keep the transport device and, ultimately, the user in an upright and stable position.
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