METHOD AND SYSTEM FOR MODIFYING A DRIVE PLAN OF A VEHICLE TOWARDS A DESTINATION
First Claim
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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Accused Products
Abstract
A method and system for modifying a drive plan, especially a drive/rest schedule of such a plan, of a vehicle before and/or during a drive towards a desired destination is provided in which (a) a development of the alertness level of a driver is predicted, (b) points in time are determined and classified as high risk instances, where the predicted development becomes equal to or smaller than a predetermined threshold level, (c) the high risk instances are compared with the drive plan or drive/rest schedule and it is determined whether any high risk instance will occur before the destination or a next planned stop or rest is reached and (d1) if a high risk instance is determined to occur before the destination or the next planned stop or rest is reached, a modified drive plan or drive/rest schedule is calculated such that a stop or rest will occur before or at the next high risk instance.
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Citations
16 Claims
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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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification