VEHICLE LOCALIZATION SYSTEM
First Claim
1. A vehicle localization system, comprising:
- an electronic control unit configured to estimate a vehicle position including a longitudinal position and a lateral position, the longitudinal position being a position of a vehicle on a map in an extension direction of a road on which the vehicle is traveling, and the lateral position being a position of the vehicle on the map in a lateral direction of the road; and
a storage device that stores a map database including map information, the map information including height information or grade information of the road, wherein;
the electronic control unit is configured to obtain a vehicle speed and a pitch angle of the vehicle traveling on the road;
the electronic control unit is configured to perceive a measured position of the vehicle on the map based on a measurement result of a positioning device mounted on the vehicle and the vehicle speed; and
the electronic control unit is configured to estimate the longitudinal position from comparison between a rate of change in pitch angle of the vehicle along the road and a rate of change in height on the map along the road, based on the measured position of the vehicle on the map, the map information, and the pitch angle of the vehicle.
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Abstract
A vehicle localization system includes: an electronic control unit estimating a vehicle position including a longitudinal position on a map in an extension direction of a road on which the vehicle is traveling and a lateral position on the map in a lateral direction of the road; and a storage device storing a map database including map information. The electronic control unit obtains a vehicle speed and a pitch angle of the vehicle, perceives a measured position of the vehicle on the map based on a measurement result of a positioning device mounted on the vehicle and the vehicle speed, and estimates the longitudinal position from comparison between a rate of change in pitch angle of the vehicle along the road and a rate of change in height on the map along the road, based on the measured position, the map information, and the pitch angle.
12 Citations
2 Claims
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1. A vehicle localization system, comprising:
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an electronic control unit configured to estimate a vehicle position including a longitudinal position and a lateral position, the longitudinal position being a position of a vehicle on a map in an extension direction of a road on which the vehicle is traveling, and the lateral position being a position of the vehicle on the map in a lateral direction of the road; and a storage device that stores a map database including map information, the map information including height information or grade information of the road, wherein; the electronic control unit is configured to obtain a vehicle speed and a pitch angle of the vehicle traveling on the road; the electronic control unit is configured to perceive a measured position of the vehicle on the map based on a measurement result of a positioning device mounted on the vehicle and the vehicle speed; and the electronic control unit is configured to estimate the longitudinal position from comparison between a rate of change in pitch angle of the vehicle along the road and a rate of change in height on the map along the road, based on the measured position of the vehicle on the map, the map information, and the pitch angle of the vehicle. - View Dependent Claims (2)
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Specification