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METHOD OF DETERMINING VEHICLE ROUTE AND NAVIGATION SYSTEM

  • US 20110035147A1
  • Filed: 06/18/2010
  • Published: 02/10/2011
  • Est. Priority Date: 08/10/2009
  • Status: Abandoned Application
First Claim
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1. A method of determining a vehicle route, comprising the steps of:

  • calculating a current location to calculate current location information based on signals from a plurality of GPS satellites;

    memorizing ramp section definition information to define a ramp section having a bifurcation structure including both a main road route and a bifurcation route bifurcated from the main road route, a main road route tilt attribute representing whether the main road route in the ramp section is upwardly inclined, downwardly inclined, or horizontal, and a bifurcation route tilt attribute representing whether the bifurcation route in the ramp section is upwardly inclined, downwardly inclined, or horizontal in a memory unit;

    ramp section determining whether or not the current location of a vehicle has entered into the ramp section based on the current location information;

    detecting pitch angle rate information of the vehicle, by a sensor;

    determining a tilt attribute of a route on which the vehicle is driving to be whether upwardly inclined, downwardly inclined, or horizontal by sampling the pitch angle rate information detected by the sensor in the pitch angle rate information detection step in a predetermined sampling period for integration;

    table defining to define, as a table, a route determination result of the route on which the vehicle is driving to be whether the main road route or the bifurcation route in correspondence with the tilt attribute of where the vehicle is driving determined by the tilt attribute determination step, the main road route tilt attribute in the ramp section, and the bifurcation route tilt attribute in the ramp section; and

    determining a vehicle route to obtain the route determination result of whether the route on which the vehicle is driving is the main road route or the bifurcation route with reference to the table based on the main road route tilt attribute, the bifurcation route tilt attribute, and the tilt attribute.

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