Method for acquiring transverse-position information of a motor vehicle on a carriageway and motor vehicle
First Claim
1. A method for acquiring transverse-position information comprising a lane assignment of a motor vehicle on a roadway, the method comprising:
- acquiring, by a radar sensor of the motor vehicle, radar data comprising information of at least part of the roadway;
detecting, by a control unit of the radar sensor, environmental features describing a location of a roadway boundary based on the radar data, wherein the environmental features comprise a transition from a road surface to another surface;
evaluating, by the control unit of the radar sensor, the environmental features to localize in the radar data;
determining, by the control unit of the radar sensor, a course of the roadway boundary and lateral distances of the motor vehicle with respect to the roadway boundary; and
comparing, by the control unit of the radar sensor, the radar data with roadway division information derived from digital map data to perform a plausibility check for determination of a roadway width and the lane assignment of the motor vehicle;
wherein the digital map data comprise section information describing at least one of a presence, a width, and a location of a part of the roadway not used as a traffic lane, andwherein a semiconductor chip comprises an implementation of the radar sensor and an implementation of a radar transceiver.
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Accused Products
Abstract
Method for acquiring transverse-position information of a motor vehicle (10) on a roadway (16), wherein radar data describing at least part of the roadway (16) are acquired by at least one radar sensor (1) of the motor vehicle (10), environmental features describing the location of a roadway boundary are detected and localized in the radar data by evaluation, from these, a course of the roadway boundaries of the roadway (16) and lateral distances (24) of the motor vehicle (10) with respect to the lane boundaries are determined, and the transverse-position information is determined as, or as a function of, the lateral distances (24) of the motor vehicle (10) from the roadway boundaries.
20 Citations
13 Claims
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1. A method for acquiring transverse-position information comprising a lane assignment of a motor vehicle on a roadway, the method comprising:
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acquiring, by a radar sensor of the motor vehicle, radar data comprising information of at least part of the roadway; detecting, by a control unit of the radar sensor, environmental features describing a location of a roadway boundary based on the radar data, wherein the environmental features comprise a transition from a road surface to another surface; evaluating, by the control unit of the radar sensor, the environmental features to localize in the radar data; determining, by the control unit of the radar sensor, a course of the roadway boundary and lateral distances of the motor vehicle with respect to the roadway boundary; and comparing, by the control unit of the radar sensor, the radar data with roadway division information derived from digital map data to perform a plausibility check for determination of a roadway width and the lane assignment of the motor vehicle; wherein the digital map data comprise section information describing at least one of a presence, a width, and a location of a part of the roadway not used as a traffic lane, and wherein a semiconductor chip comprises an implementation of the radar sensor and an implementation of a radar transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A motor vehicle comprising:
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a radar sensor; and one control device configured to perform operations comprising; acquiring, by the radar sensor of the motor vehicle, radar data comprising information of at least part of a roadway; detecting, by a control unit of the radar sensor, environmental features describing a location of a roadway boundary based on the radar data, wherein the environmental features comprise a transition from a road surface to another surface; evaluating, by the control unit of the radar sensor, the environmental features to localize in the radar data; determining, by the control unit of the radar sensor, a course of the roadway boundary and lateral distances of the motor vehicle with respect to the roadway boundary; and comparing, by the control unit of the radar sensor, the radar data with roadway division information derived from digital map data to perform a plausibility check for determination of a roadway width and a lane assignment of the motor vehicle; wherein the digital map data comprise section information describing at least one of a presence, a width, and a location of a part of the roadway not used as a traffic lane, and wherein a semiconductor chip comprises an implementation of the radar sensor and an implementation of a radar transceiver.
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Specification