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Method for distinguishing between real obstacles and apparent obstacles in a driver assistance system for motor vehicle

  • US 10,031,225 B2
  • Filed: 04/16/2014
  • Issued: 07/24/2018
  • Est. Priority Date: 06/12/2013
  • Status: Active Grant
First Claim
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1. A method for distinguishing between real obstacles and apparent obstacles using a driver assistance system for a motor vehicle equipped with a position finding system for determining the motor vehicle'"'"'s own location, as well as a radar sensor for measuring distances and relative velocities of radar targets, the method comprising:

  • detecting a stationary radar target based on data from the radar sensor;

    determining that the detected stationary radar target is an apparent obstacle based on at least one of;

    (i) the motor vehicle drives over a location of the detected stationary radar target, (ii) the driver assistance system has initiated an emergency braking operation of the brake system of the motor vehicle based on the detected stationary radar target and a driver of the motor vehicle interrupts the emergency braking operation, (iii) a warning is issued based on the detected stationary radar target and the driver ignores the warning, and (iv) a camera detects that there is no relevant target object at the location of the detected stationary radar target; and

    storing, in a database, positional information for the detected stationary radar target determined to be an apparent obstacle;

    querying the database, by the driver assistance system, when the driver assistance system detects a first stationary radar target at a specific location, whether an apparent obstacle is at the specific location;

    determining that no apparent obstacle is at the specific location based on the querying; and

    at least one of issuing a warning signal and activating an emergency braking based determining that no apparent obstacle is at the specification location.

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