System and method for vehicle speed monitoring using historical speed data
First Claim
1. A method of monitoring the speed of an automotive vehicle comprising:
- identifying, by a computer in operative communication with the automotive vehicle, an approaching road segment lying ahead of the vehicle;
accessing a first speed profile of the approaching segment, the first speed profile 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 road segment, the baseline road segment generated by calculating a statistical distribution of historical speed data from probe vehicles that have traveled over the baseline segmentcomparing, by the computer, a past speed of the vehicle over the baseline segment with the second speed profile to determine a speed differential;
applying, by the computer, the speed differential to the first speed profile to establish a target vehicle speed over the approaching road segment;
adjusting, by the computer, the target speed based on a desired relationship with at least one of the first speed profile and the second speed profile, the desired relationship being based upon at least one of a driver condition factor, a driving conditions factor, a vehicle condition factor, and a driver input factor;
assessing, by the computer, whether the vehicle is likely to exceed the adjusted target speed over the approaching segment based, at least in part, on at least one measured vehicle dynamic property; and
activating, by the computer, at least one vehicle system in response to the above assessment.
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Accused Products
Abstract
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 traveled 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.
17 Citations
9 Claims
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1. A method of monitoring the speed of an automotive vehicle comprising:
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identifying, by a computer in operative communication with the automotive vehicle, an approaching road segment lying ahead of the vehicle; accessing a first speed profile of the approaching segment, the first speed profile 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 road segment, the baseline road segment generated by calculating a statistical distribution of historical speed data from probe vehicles that have traveled over the baseline segment comparing, by the computer, a past speed of the vehicle over the baseline segment with the second speed profile to determine a speed differential; applying, by the computer, the speed differential to the first speed profile to establish a target vehicle speed over the approaching road segment; adjusting, by the computer, the target speed based on a desired relationship with at least one of the first speed profile and the second speed profile, the desired relationship being based upon at least one of a driver condition factor, a driving conditions factor, a vehicle condition factor, and a driver input factor; assessing, by the computer, whether the vehicle is likely to exceed the adjusted target speed over the approaching segment based, at least in part, on at least one measured vehicle dynamic property; and activating, by the computer, at least one vehicle system in response to the above assessment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification