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Electronic device, control method for electronic device, and control program for electronic device

  • US 9,824,588 B2
  • Filed: 07/22/2016
  • Issued: 11/21/2017
  • Est. Priority Date: 01/31/2014
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • a monitor unit configured to monitor a traveling speed and a traveling position of a host car, and a speed and a position of a preceding car, the host car being a vehicle in which the electronic device is mounted, the preceding car being a vehicle traveling ahead of the host car;

    a reception unit configured to receive traffic signal information including at least a current display state of a traffic light in an intersection located ahead of the host car in a traveling direction and timing information of a change of the display state of the traffic light;

    a prediction unit configured to generate a first prediction result of a prediction whether or not the preceding car will go into the intersection after the traffic light changes to a red signal display state when the preceding car maintains a current speed based on monitor information and the traffic signal information received by the reception unit, and generate, at a timing when the traffic light becomes the yellow signal display state, a second prediction result of a prediction whether or not the preceding car can stop before the intersection without braking suddenly based on the position and the speed of the preceding car and a distance between the preceding car and the intersection, the monitor information including the traveling speed and the traveling position of the host car and the speed and the position of the preceding car monitored by the monitor unit; and

    a warning unit configured to give a first-stage warning when the first prediction result indicates that the preceding car will go into the intersection after the traffic light changes to the red signal display state, and give a second-stage warning when the second prediction result indicates that the preceding car cannot stop before the intersection without braking suddenly.

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