A vehicle speed and/or slip of a vehicle is determined. At least first and second images of a traveling surface captured by an image sensor using an optical lens are received by a processor. The images are used to determine the distance travelled by one or more pixels in first and second directions. These distances, along with the sampling rate of the image sensor, determine pixel speed in the first and second directions. The pixel speeds in the first direction, the second direction, or both, may be used to calculate the vehicle speed, a side slip angle, or a longitudinal slip. A tire speed may also be similarly determined using a second image sensor, a second optical lens, and a second processor capturing images of the tire surface. These vehicle parameters may be used for testing or operating the vehicle, including modifying vehicle behavior during operation.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Speed And Slip Determinations For A Vehicle Using Optical Flow Technology


    Beteiligte:
    JOHNSON THOMAS (Autor:in) / LARSEN HUGH W (Autor:in)

    Erscheinungsdatum :

    27.07.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G06V / 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



    Speed determination and slip determination of vehicle using optical flow technology

    JOHANSSON THOMAS / LARSON HUGH W | Europäisches Patentamt | 2023

    Freier Zugriff

    PROACTIVE VEHICLE POSITIONING DETERMINATIONS

    BALVA ALEXANDER | Europäisches Patentamt | 2020

    Freier Zugriff

    Train direction and speed determinations using laser measurements

    CLANNEY NATHAN | Europäisches Patentamt | 2020

    Freier Zugriff

    TRAIN DIRECTION AND SPEED DETERMINATIONS USING LASER MEASUREMENTS

    CLANNEY NATHAN | Europäisches Patentamt | 2019

    Freier Zugriff

    SIDE SLIP LIMIT VEHICLE SPEED ESTIMATION DEVICE OF VEHICLE AND SIDE SLIP PREVENTION DEVICE

    FUJIMAKI YUTA | Europäisches Patentamt | 2018

    Freier Zugriff