×

Electronic control system for stair climbing vehicle

  • US 5,248,007 A
  • Filed: 11/01/1990
  • Issued: 09/28/1993
  • Est. Priority Date: 11/21/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A stair-climbing personal transport vehicle comprising:

  • a first forward ranging sensor;

    a second rearward ranging sensor;

    electronic means, responsive to said sensors, for determining the slope of a stairway and for controlling a motor for said vehicle to prevent movement over a stairway exceeding predetermined geometric characteristics;

    means, responsive to a determined slope from said electronic means, for inclining a seat on said vehicle to a minimum safe angle for preventing rollover of said vehicle for said slope to modify the center of gravity of said vehicle and user to prevent rollover of said vehicle on said stairway;

    controller means for driving said motor in accordance with an algorithm;

    enabling means, coupled to said controller means, for enabling operation of said vehicle in response to a key code; and

    a detachable, programmable memory for providing said key code to said enabling means and constants for said algorithm.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×