Method of synchronizing multiple vehicular cameras with an ECU

  • US 10,873,682 B2
  • Filed: 02/10/2020
  • Issued: 12/22/2020
  • Est. Priority Date: 12/05/2012
  • Status: Active Grant
First Claim
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1. A method of synchronizing cameras for a vehicular vision system, the method comprising:

  • providing a plurality of cameras at a vehicle equipped with the vehicular vision system, wherein the plurality of cameras comprises at least a first camera, a second camera and a third camera;

    wherein each of the first camera, the second camera and the third camera, when provided at the equipped vehicle, has a respective field of view exterior of the equipped vehicle;

    providing an electronic control unit (ECU) at the equipped vehicle;

    providing a hub at the equipped vehicle, wherein the hub is in communication with the ECU via a hub link;

    providing a first camera control signal to the first camera from the ECU via a first link from the ECU to the first camera, wherein the first camera control signal regulates timing of the first camera to be synchronous with reference timing of the ECU;

    providing second and third camera control signals from the ECU to the hub via the hub link;

    providing the second camera control signal from the hub to the second camera via a second link from the hub to the second camera, wherein the second camera control signal regulates timing of the second camera to be synchronous with reference timing of the ECU;

    providing the third camera control signal from the hub to the third camera via a third link from the hub to the third camera, wherein the third camera control signal regulates timing of the third camera to be synchronous with reference timing of the ECU;

    regulating timing of the first camera via starting the first camera synchronous to the ECU reference timing;

    regulating timing of the second camera via starting the second camera synchronous to the ECU reference timing;

    regulating timing of the third camera via starting the third camera synchronous to the ECU reference timing;

    capturing frames of image data with each of the first camera, the second camera and the third camera;

    providing image data captured by the first camera to the ECU via the first link from the first camera to the ECU;

    providing image data captured by the second camera to the ECU via the second link from the second camera to the hub and via the hub link from the hub to the ECU; and

    providing image data captured by the third camera to the ECU via the third link from the third camera to the hub and via the hub link from the hub to the ECU.

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