Method of synchronizing multiple vehicular cameras with an ECU

  • US 10,560,610 B2
  • Filed: 12/28/2018
  • Issued: 02/11/2020
  • Est. Priority Date: 12/05/2012
  • Status: Active Grant
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First Claim
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1. A method of synchronizing cameras with an electronic control unit of a vehicular vision system, said 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, a third camera and a fourth camera;

    wherein providing the plurality of cameras comprises providing the first camera at a front portion of the equipped vehicle, providing the second camera at a left-side side portion of the equipped vehicle, providing the third camera at a right-side side portion of the equipped vehicle, and providing the fourth camera at a rear portion of the equipped vehicle;

    wherein each of the first camera, the second camera, the third camera and the fourth 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 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 a second camera control signal to the second camera from the ECU via a second link from the ECU 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 a third camera control signal to the third camera from the ECU via a third link from the ECU 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;

    providing a fourth camera control signal to the fourth camera from the ECU via a fourth link from the ECU to the fourth camera, wherein the fourth camera control signal regulates timing of the fourth 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 and holding 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 and holding 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 and holding the third camera synchronous to the ECU reference timing;

    regulating timing of the fourth camera via starting the fourth camera synchronous to the ECU reference timing and holding the fourth camera synchronous to the ECU reference timing;

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

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

    providing image data captured by the fourth camera to the ECU via the fourth link from the fourth camera to the ECU.

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