A driver-fatigue warning system (10) includes a speed-limit-detection-means (14), a speed-sensor (30), an alert-device (34), and a controller (28). The speed-limit-detection-means (14) detects a speed-limit (16) of a roadway traveled by a host-vehicle (12). The speed-sensor (30) detects a speed (32) of the host-vehicle (12). The alert-device (34) is operable to alert an operator (36) of the host-vehicle (12) of driver-fatigue. The controller (28) is in communication with the speed-limit-detection-means (14), the speed-sensor (30), and the alert-device (34). The controller (28) determines a change (38) of the speed-limit (16) of the roadway (18) based on the speed-limit-detection-means (14). The controller (28) determines that a speed-change (40) has occurred based on the speed-sensor (30) when a variation (42) in the speed (32) is greater than a variation-threshold (44). The controller (28) does not increment a count (46) of occurrences of the speed-change (40) when the speed-change (40) correlates with the change (38) of the speed-limit (16), and activates the alert-device (34) when the count (46) of occurrences of the speed-change (40) exceeds a change-threshold (52) indicative of driver-fatigue.


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    Titel :

    DRIVER FATIGUE WARNING SYSTEM


    Weitere Titelangaben:

    FAHRERMÜDIGKEITSWARNSYSTEM
    SYSTÈME D'AVERTISSEMENT DE FATIGUE DE CONDUCTEUR


    Beteiligte:

    Erscheinungsdatum :

    2024-04-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



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