Accurate position determination near exit lanes
First Claim
1. An in-vehicle system for determining whether a vehicle in an autonomous driving mode has moved off of a main roadway and into an exit lane, the system comprising:
- an a navigation unit for determining that an exit is approaching on a side of the main roadway;
a camera for obtaining image data regarding lane markings and exit signs in response to a determination by the navigation unit that the exit is approaching;
an image processor for identifying a predetermined pattern among the lane markings and for determining a side of the vehicle on which the predetermined pattern exists, wherein the predetermined patterns include a Y-shaped configuration of solid line lane markings and a V-shaped configuration of solid line lane markings;
means for determining whether the vehicle has moved into the exit lane based on an assessment of the side of the main roadway on which the exit is approaching and the side of the vehicle on which the predetermined pattern exists; and
means for verifying the determination by recognizing an exit sign and determining a side of the vehicle on which the exit sign exists,wherein the in-vehicle system issues a warning to a driver of the vehicle and disengages the autonomous driving mode in response to a verified determination that the vehicle has moved into the exit lane.
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Accused Products
Abstract
An in-vehicle system for determining whether a vehicle has moved off of a main roadway and into an exit lane. A navigation unit determines that an exit is approaching on a first side of the vehicle, and a camera obtains image data regarding lane markings and exit signs in response to a notification that the exit is approaching. An image processor identifies predetermined patterns among the lane markings, including V-shaped patterns or Y-shaped patterns. The system determines that the vehicle has moved into the exit lane in response to an identification of one of the predetermined patterns on a second side of the vehicle opposite the first side of the vehicle. The system may verify its determination based on recognition of an exit sign on the second side of the vehicle.
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Citations
19 Claims
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1. An in-vehicle system for determining whether a vehicle in an autonomous driving mode has moved off of a main roadway and into an exit lane, the system comprising:
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an a navigation unit for determining that an exit is approaching on a side of the main roadway; a camera for obtaining image data regarding lane markings and exit signs in response to a determination by the navigation unit that the exit is approaching; an image processor for identifying a predetermined pattern among the lane markings and for determining a side of the vehicle on which the predetermined pattern exists, wherein the predetermined patterns include a Y-shaped configuration of solid line lane markings and a V-shaped configuration of solid line lane markings; means for determining whether the vehicle has moved into the exit lane based on an assessment of the side of the main roadway on which the exit is approaching and the side of the vehicle on which the predetermined pattern exists; and means for verifying the determination by recognizing an exit sign and determining a side of the vehicle on which the exit sign exists, wherein the in-vehicle system issues a warning to a driver of the vehicle and disengages the autonomous driving mode in response to a verified determination that the vehicle has moved into the exit lane. - View Dependent Claims (2)
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3. An in-vehicle system for determining whether a vehicle in an autonomous driving mode has moved off of a main roadway and into an exit lane, the system comprising:
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a communication link on which an indication that the vehicle is approaching an exit is received; a detector that captures data regarding lane markings on the roadway; and a processor and a non-transitory data storage on which is stored computer code which, when executed on the processor, causes the in-vehicle system to; identify predetermined patterns among the lane markings on the roadway; determine whether the vehicle has moved into the exit lane based on an identification of one of the predetermined patterns, and verify the determination by recognizing an indication that the vehicle is approaching an exit, wherein the in-vehicle system issues a warning to a driver of the vehicle and disengages the autonomous driving mode in response to a verified determination that the vehicle has moved into the exit lane. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A method for determining whether a vehicle in an autonomous driving mode has moved off of a main roadway and into an exit lane, the method comprising:
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determining that the vehicle is approaching an exit; capturing data regarding lane markings on the roadway; identifying predetermined patterns among the lane markings on the roadway; determining whether the vehicle has moved into the exit lane based on an identification of one of the predetermined patterns; and verifying the determination by recognizing an indication that the vehicle is approaching an exit, wherein the vehicle issues a warning to a driver of the vehicle and disengaging the autonomous driving mode in response to a determination that the vehicle has moved into the exit lane. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An in-vehicle system for determining whether a vehicle in an autonomous driving mode has moved off of a main roadway and into an exit lane, the system comprising:
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a navigation unit for determining that an exit is approaching on a side of the main roadway; a camera for obtaining image data regarding lane markings and exit signs in response to a determination by the navigation unit that the exit is approaching; an image processor for identifying a predetermined pattern among the lane markings and for determining a side of the vehicle on which the predetermined pattern exists, wherein the predetermined patterns include a Y-shaped configuration of solid line lane markings and a V-shaped configuration of solid line lane markings; and an autonomous driving system that determines whether the vehicle has moved into the exit lane based on an assessment of the side of the main roadway on which the exit is approaching and the side of the vehicle on which the predetermined pattern exists, wherein the autonomous driving system verifies the determination by recognizing an exit sign and determining a side of the vehicle on which the exit sign exists, and wherein the in-vehicle system issues a warning to the driver and disengages the autonomous driving system in response to a determination that the vehicle has moved into the exit lane. - View Dependent Claims (19)
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Specification