A vehicle speed and/or slip of the vehicle is determined. The processor receives at least a first image and a second image of the traveling surface captured by the image sensor using the optical lens. These images are used to determine a distance traveled by one or more pixels in a first direction and a second direction. These distances, together with a sampling rate of the image sensor, determine pixel velocities in the first and second directions. Pixel velocities in a first direction, pixel velocities in a second direction, or pixel velocities in both directions may be used to calculate a vehicle speed, a lateral slip angle, or a longitudinal slip. Images of the tire surface may also be captured using a second image sensor, a second optical lens, and a second processor to determine the tire speed in a similar manner. These vehicle parameters may be used to test or operate the vehicle, including modifying vehicle behavior during operation.

    确定车辆的车辆速度和/或滑移。处理器接收由图像传感器使用光学透镜捕获的行进表面的至少第一图像和第二图像。这些图像用于确定一个或多个像素在第一方向和第二方向上行进的距离。这些距离连同图像传感器的采样率决定了第一方向和第二方向上的像素速度。第一方向上的像素速度、第二方向上的像素速度或这两个方向上的像素速度可以用于计算车辆速度、侧向滑移角或纵向滑移。也可以使用第二图像传感器、第二光学透镜和第二处理器捕获轮胎表面的图像来以类似方式确定轮胎速度。这些车辆参数可以用于对车辆进行测试或操作,包括在操作期间修改车辆行为。


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    Title :

    Speed determination and slip determination of vehicle using optical flow technology


    Additional title:

    使用光流技术进行车辆的速度确定和滑移确定


    Contributors:

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / G06V



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