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Method and system for providing warnings concerning an imminent vehicular collision

  • US 20070080825A1
  • Filed: 09/05/2004
  • Published: 04/12/2007
  • Est. Priority Date: 09/16/2003
  • Status: Active Grant
First Claim
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1. Method for transmitting a warning signal to a driver of a driven vehicle regarding an impending collision with a moving and/or stationary object in the vicinity of said driven vehicle, comprising:

  • a) providing said driven vehicle with means for obtaining updated data regarding, position, velocity vector and predicted moving path of said objects;

    b) selecting a series of one or more time horizons having decreasing or increasing duration;

    c) for the longest of said selected time horizons;

    c.1) generating a linear velocity object (LVO) and/or non-linear velocity object (NLVO) of each of said objects;

    c.2) selecting a sampling time interval Δ

    t, during which an LVO and/or NLVO is generated;

    c.3) determining a range of feasible velocity vector changes for said driven vehicle that are attainable within a performance time interval Δ

    T;

    c.4) repeatedly providing the driver, after each Δ

    t, with information regarding feasible velocity vector changes for said performance time interval;

    c.5) sensing, estimating or assuming dynamic changes parameters representing the movement of said driven vehicle within said performance time interval, and whenever required, generating a warning signal with an escalating severity level that reflects the relative imminence of collision with said objects and that corresponds to said longest time horizon; and

    c.6) repeating steps c.1) to c.5) above, while each time generating an updated LVO and/or NLVO for a subsequent sampling time interval, until reaching another selected time horizon which is shorter than a previously selected time horizon;

    d) repeating steps c) above for said another selected time horizon, until collision is unavoidable.

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