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Power apparatus for wheelchairs

  • US 20050279551A1
  • Filed: 06/21/2004
  • Published: 12/22/2005
  • Est. Priority Date: 06/21/2004
  • Status: Active Grant
First Claim
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1. A system for collision-free mechanical transportation comprising:

  • (a) a wheeled mechanism;

    (b) means to detect forces applied to the wheels of said wheeled mechanism;

    (c) at least one sensor capable of detecting obstacles in the environment;

    (d) means to alter forces applied to said wheels of said wheeled mechanism; and

    (e) a controller that (i) receives and processes information about the forces applied to said wheels of said wheeled mechanism and about obstacles in the environment from said sensor;

    (ii) determines the risk of collision with obstacles; and

    (iii) alters the forces applied to said wheels to avoid said risk of collision.

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