MOTOR VEHICLE ACCELERATION DETERMINING SYSTEM
First Claim
1. A method for analyzing accelerations as a road segment characteristic in a vehicle, the method comprising:
- identifying a road segment from map data based on a current position;
measuring a plurality of acceleration values or a plurality of velocity values within the identified road segment;
reading a stored probability distribution of acceleration within the identified road segment from a data storage medium;
calculating an updated probability distribution of acceleration within the identified road segment using the stored probability distribution and at least one of the plurality of acceleration values or the plurality of velocity values; and
storing the updated probability distribution in the data storage medium.
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Accused Products
Abstract
Systems and methods for analyzing acceleration as a road segment characteristic in a vehicle are provided for determining information about a route including for example, the estimated fuel consumption of the route. An example of a system includes a data storage medium for storing map data having road segments, a bus interface to a data bus for receiving measured values of a velocity or an acceleration from a velocity or acceleration sensor, a position data receiver configured to receive position data for determining a current position, and a system controller. The system controller is configured to identify a road segment associated with the current position. The system controller retrieves parameters of a probability distribution of acceleration associated with the identified road segment from the data storage medium. Updated parameters of the probability distribution of acceleration are determined from the measured values of the velocity or acceleration.
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Citations
19 Claims
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1. A method for analyzing accelerations as a road segment characteristic in a vehicle, the method comprising:
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identifying a road segment from map data based on a current position; measuring a plurality of acceleration values or a plurality of velocity values within the identified road segment; reading a stored probability distribution of acceleration within the identified road segment from a data storage medium; calculating an updated probability distribution of acceleration within the identified road segment using the stored probability distribution and at least one of the plurality of acceleration values or the plurality of velocity values; and storing the updated probability distribution in the data storage medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for analyzing acceleration as a road segment characteristic in a vehicle comprising:
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a data storage medium for storing map data having road segments; a bus interface to a data bus for receiving measured values of a velocity or an acceleration from a velocity or acceleration sensor; a position data receiver configured to receive position data for determining a current position; a system controller configured to identify a road segment associated with the current position, to use parameters of a probability distribution of acceleration stored in the data storage medium where the parameters are associated with the identified road segment, and to determine updated parameters of the probability distribution of acceleration from the measured values of the velocity or acceleration. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification