According to the invention a driver assistance system for assisting a driver of a vehicle 1 is proposed, having at least one sensor group 5, 60, 70, which comprises at least one first ultrasonic sensor 10, 10' of a first type and at least one second ultrasonic sensor 20, 20' of a second type. The ultrasonic sensors are disposed in such a way that they have at least partially overlapping sensing ranges 12, 22. According to the invention the ultrasonic sensors of the first type are configured to sense a short range and the ultrasonic sensors of the second type are configured to sense a long range. A control unit 50 drivers the sensors and evaluates the echo signals, which are combined to produce a continuous and gap-free sensing range. The groups of sensors can be placed at both the front and rear of the vehicle. The short range sensors can have a lower sensitivity than the long range sensors, and can be operated at a different frequency. Alternatively the signals can be emitted separately from one another in respect of time.


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    Title :

    SYSTEME D'ASSISTANCE DE CONDUITE


    Contributors:

    Publication date :

    2017-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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