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.
Speed And Slip Determinations For A Vehicle Using Optical Flow Technology
2023-07-27
Patent
Electronic Resource
English
Speed determination and slip determination of vehicle using optical flow technology
European Patent Office | 2023
|Train direction and speed determinations using laser measurements
European Patent Office | 2020
|TRAIN DIRECTION AND SPEED DETERMINATIONS USING LASER MEASUREMENTS
European Patent Office | 2019
|SIDE SLIP LIMIT VEHICLE SPEED ESTIMATION DEVICE OF VEHICLE AND SIDE SLIP PREVENTION DEVICE
European Patent Office | 2018
|