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Information system for automotive, on-vehicle device and server device

  • US 9,645,969 B2
  • Filed: 12/28/2012
  • Issued: 05/09/2017
  • Est. Priority Date: 12/29/2011
  • Status: Active Grant
First Claim
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1. An on-vehicle device installed in a vehicle, comprising:

  • a processor and associated memory storing a program that, when executed, causes the processor to carry out;

    an acceleration/deceleration change detection processing that detects an acceleration/deceleration change of the vehicle; and

    a transmission processing that transmits acceleration/deceleration information pertaining to the acceleration/deceleration change detected by the acceleration/deceleration change detection processing, wherein the acceleration/deceleration change detection processing;

    designates a position of the vehicle at which the acceleration/deceleration change was last detected as an origin point;

    calculates a hypothetical cumulative traveling distance of the vehicle when the vehicle hypothetically travels from the origin point to a current position at a constant acceleration/deceleration rate;

    calculates an actual cumulative traveling distance of the vehicle from the origin point to the current position; and

    designates the current position as an equivalent point at which the acceleration/deceleration change is virtually detected if an absolute difference between the hypothetical cumulative traveling distance and the actual cumulative traveling distance is equal to or greater than a predetermined value, and whereinthe transmission processing further transmits the acceleration/deceleration information pertaining to the equivalent point designated by the acceleration/deceleration change detection processing.

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