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METHOD AND SYSTEM FOR MODIFYING A DRIVE PLAN OF A VEHICLE TOWARDS A DESTINATION

  • US 20110022298A1
  • Filed: 04/11/2008
  • Published: 01/27/2011
  • Est. Priority Date: 04/11/2008
  • Status: Abandoned Application
First Claim
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1. Method for modifying a drive plan, of a vehicle before and/or during a drive towards a desired destination, comprising:

  • (a) predicting a development of a level of a state of the driver of the vehicle or updating a previous such prediction, by means of at least one of a driver state monitoring device, a known mathematical, a known statistical and a known rule based model of a state of a human being, on the basis of predetermined environment variables and data about a physical condition or impairment of the driver and storing the predicted development in a storage;

    (b) determining points in time, where the predicted development of the level of the driver state becomes equal to or smaller than a predetermined threshold level and classifying or annotating these points in time as high risk instances;

    (c) comparing the high risk instances with the drive plan or drive/rest schedule and determining whether any high risk instance will occur before the destination or a next planned stop or rest is reached;

    (d1) if a high risk instance will occur before the destination or the next planned stop or rest is reached, calculating a modified drive plan or drive/rest schedule such that a stop or rest will occur before or at the next high risk instance;

    (e) determining whether any high risk instance will occur before the expiration of a preset critical time period which starts from the present time at which the method is conducted, and which is preset with respect to its duration for determining a quick decrease of the level of the driver state, and(f) if a high risk instance will not occur before the expiration of the critical time period re-classifying or re-annotating the high risk instance as a medium risk instance.

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