LANE KEEPING SYSTEM FOR AUTONOMOUS VEHICLE DURING CAMERA DROP-OUTS
First Claim
1. A method of sensing an environment of a vehicle, the method comprising the steps of:
- controlling a vehicle lane position based upon a first signal from a first sensor;
switching from the first sensor to a second sensor if the first sensor cannot provide a desired lane marker confidence; and
controlling the vehicle lane position based upon a second signal from the second sensor if the second sensor can provide the desired lane marker confidence and a predetermined time has not been exceeded.
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Accused Products
Abstract
An environmental sensing system relating to vehicle lane position includes first and second sensors respectively configured to provide first and second signals indicative of a vehicle lane position. A steering system achieves a desired lane position in response to a command from a controller to keep the vehicle in its lane, for example, during autonomous control of the vehicle. The controller uses the first signal if the first sensor provides a desired lane marker confidence. The controller switches to the second sensor and uses the second signal if the first sensor cannot provide the desired lane marker confidence and the second sensor can provide the desired lane marker confidence.
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Citations
20 Claims
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1. A method of sensing an environment of a vehicle, the method comprising the steps of:
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controlling a vehicle lane position based upon a first signal from a first sensor; switching from the first sensor to a second sensor if the first sensor cannot provide a desired lane marker confidence; and controlling the vehicle lane position based upon a second signal from the second sensor if the second sensor can provide the desired lane marker confidence and a predetermined time has not been exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An environmental sensing system relating to vehicle lane position, comprising:
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a first sensor configured to provide a first signal indicative of a vehicle lane position; a second sensor configured to provide a second signal indicative of the vehicle lane position; a steering system configured to achieve a desired lane position in response to a command; and a controller in communication with the steering system and the first and second sensors and configured to provide the command based upon one of the first and second signals, the controller configured to use the first signal if the first sensor provides a desired lane marker confidence, the controller configured to switch to the second sensor and use the second signal if the first sensor cannot provide the desired lane marker confidence and the second sensor can provide the desired lane marker confidence and a predetermined time has not been exceeded. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification