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Title: US6868931: Speed limiting for a balancing transporter accounting for variations in system capability
[ Derwent Title ]

Country: US United States of America

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28 pages

 
Inventor: Morrell, John B.; Bedford, NH, United States of America
Robinson, David W.; Manchester, NH, United States of America

Assignee: DEKA Products Limited Partnership, Manchester, NH, United States of America
other patents from DEKA PRODUCTS LIMITED PARTNERSHIP (682759) (approx. 104)
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Published / Filed: 2005-03-22 / 2003-09-23

Application Number: US2003000669879
IPC Code: Advanced: A61G 5/04; A61G 5/06; B60L 11/18; B60L 15/20; B62D 57/00; B62K 1/00; B62K 3/00; B62K 17/00; B62M 7/00; B62M 23/02; A61G 5/10; A61G 5/12; B60K 7/00;
IPC-7: B60K 19/00;

ECLA Code: A63C17/12; B60L11/18M; B60L15/20E; B62D57/00; B62K1/00; B62K3/00D; B62K17/00; K61G5/06B2; L60K7/00; L60L200/16; L62K202/00; Y02T10/70B; Y02T10/70H6; Y02T10/72D6;

U.S. Class: 180/170; 180/179; 701/001;

Field of Search: 180/7.1,21,218,65.1,170,179 701/001

Priority Number:
2003-09-23  US2003000669879
2003-06-13  US2003000460970
1999-06-04  US1999000325976
1995-06-07  US1995000479901
1995-02-03  US1995000384705
1994-05-27  US1994000250693
2002-06-14  US2002000388845P
2002-06-14  US2002000389134P

Abstract:     A class of transporters for carrying an individual over ground having a surface that may be irregular. Various embodiments have a motorized drive, mounted to the ground-contacting module that causes operation of the transporter in an operating position that is unstable with respect to tipping when the motorized drive arrangement is not powered. Related methods are provided for determining the maximum operating speed of the transporter from measurement of battery parameters and transporter motor current and for limiting the speed of the transporter to maintain stability based on various sets of operationally imposed margins.

Attorney, Agent or Firm: Bromberg & Sunstein LLP ;

Primary / Asst. Examiners: Morris, Lesley D.; Luby, Matthew
INPADOC Legal Status: Show legal status actions          Buy Now: Family Legal Status Report

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US2003000460970 2003-06-13       
US1999000325976 1999-06-04       
US1995000479901 1995-06-07    1999-11-02  Transportation vehicles with stability enhancement using CG modification
US1995000384705 1995-02-03    1999-10-26  Transportation vehicles and methods
US1994000250693 1994-05-27    1997-12-30  Human transporter


       
Family: Show 321 known family members
First Claim:
Show all 2 claims		     1. A method for limiting the speed of a transporter having a motorized drive arrangement, the method comprising:

a. calculating a plurality of maximum speeds based on at least one of a margin of torque and a margin of motor speed specified to provide stable operation under specified sets of operating conditions;

b. determining a speed limit locus in a plane of motor speed and motor torque such that the speed of the transporter exceeds no maximum speed determined in step (a); and

c. limiting operation of the motorized drive arrangement to preclude extended operation of the transporter at a speed exceeding the intervention locus.



Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 20 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (20)   |   Backward references (110)   |   Citation Link

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  * some details unavailable
       
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    • Continuity Data:
    Application Number Filed Notes
    US2003000669879 2003-09-23  is a related to the prior publication
         US20040118622A1 issued 2004-06-24  Speed limiting for a balancing transporter accounting for variations in system capability
    >US2003000669879< 2003-09-23  is a continuation in part of
    US2003000460970  2003-06-13   (pending) [presumed granted]
         US6874591 issued 2005-04-05   Speed limiting for a balancing transporter
    >US2003000669879<   is a continuation in part of
    US2003000460970  2003-06-13   (pending) [presumed granted]
         US6874591 issued 2005-04-05   Speed limiting for a balancing transporter
    US2003000669879 2003-09-23  is a non-provisional of provisional
    US2002000389134P  2002-06-14
    US2003000669879 2003-09-23  is a non-provisional of provisional
    US2002000388845P  2002-06-14
    US2003000460970 2003-06-13  is a continuation in part of
    US1999000325976  1999-06-04   (pending) [presumed granted]
         US7370713 issued 2008-05-13   Personal mobility vehicles and methods
    US2003000460970   is a continuation in part of
    US1999000325976  1999-06-04   (pending) [presumed granted]
         US7370713 issued 2008-05-13   Personal mobility vehicles and methods
    US1999000325976 1999-06-04  is a continuation in part of
    US1995000479901  1995-06-07   (granted)
         US5975225 issued 1999-11-02   Transportation vehicles with stability enhancement using CG modification
    US1999000325976   is a continuation in part of
    US1995000479901  1995-06-07
         US5975225 issued 1999-11-02   Transportation vehicles with stability enhancement using CG modification
    US1995000479901 1995-06-07  is a continuation in part of
    US1995000384705  1995-02-03   (granted)
         US5971091 issued 1999-10-26   Transportation vehicles and methods
    US1995000479901   is a continuation in part of
    US1995000384705  1995-02-03
         US5971091 issued 1999-10-26   Transportation vehicles and methods
    US1995000384705 1995-02-03  is a continuation in part of
    US1994000250693  1994-05-27   (granted)
         US5701965 issued 1997-12-30   Human transporter
    US1995000384705   is a continuation in part of
    US1994000250693  1994-05-27
         US5701965 issued 1997-12-30   Human transporter


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