System and method for vehicle speed monitoring using historical speed data

摘要

A target (not-to-exceed) speed for a vehicle over a road segment ahead of the vehicle is established based on a desired relationship with a speed profile of the segment. The speed profile is generated by analyzing a statistical distribution of historical speed data over the segment collected by probe vehicles. A driver alert is activated if the vehicle is likely to exceed the target speed based on at least one measured vehicle dynamic property. The target speed may be established by identifying a baseline road segment over which the vehicle has previously travelled and which is similar to the approaching road segment, comparing a past speed of the vehicle over the baseline segment with a speed profile of the baseline segment to determine a speed differential, and applying the speed differential to the speed profile of the approaching segment.

主权项

1. A method of monitoring the speed of an automotive vehicle comprising:
operating a vehicle navigation system to determine a location of the vehicle relative to an approaching road segment lying ahead of the vehicle; accessing a first speed profile of the approaching segment, the first speed profile saved in a database and generated by analyzing a statistical distribution of historical speed data collected from probe vehicles that have previously travelled over the approaching segment; identifying a baseline road segment over which the vehicle has previously travelled; accessing a second speed profile of the baseline segment, the second speed profile saved in the database and generated by analyzing a statistical distribution of historical speed data collected from probe vehicles that have previously travelled over the baseline segment; comparing a past speed of the vehicle over the baseline segment with the second speed profile to determine a speed differential; and applying the speed differential to the first speed profile to establish a target vehicle speed over the approaching segment; assessing whether the vehicle is likely to exceed the target speed over the approaching segment based, at least in part, on a current vehicle speed; and activating a vehicle system to a) notify a vehicle driver of results of the assessment, and/or b) reduce vehicle speed.