Lane departure haptic warning with compensation for road-caused vibration
First Claim
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1. A lane departure alerting method comprising:
- operating a lane detection system to detect that a vehicle is experiencing a lane departure condition;
operating a sensor to detect background vibration experienced by the vehicle;
determining a characteristic making a haptic signal likely to be distinguishable from the background vibration; and
operating a haptic signal generator in response to the lane departure condition to deliver to a driver the haptic signal having the characteristic.
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Abstract
A method of alerting the driver of a vehicle to a lane departure condition. The method includes operating a lane detection system to detect that the vehicle is experiencing a lane departure condition, operating a sensor to detect background vibration experienced by the vehicle, determining a characteristic making a haptic signal likely to be distinguishable from the background vibration, and operating a haptic signal generator in response to the lane departure condition to deliver to a driver the haptic signal having the characteristic.
29 Citations
19 Claims
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1. A lane departure alerting method comprising:
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operating a lane detection system to detect that a vehicle is experiencing a lane departure condition; operating a sensor to detect background vibration experienced by the vehicle; determining a characteristic making a haptic signal likely to be distinguishable from the background vibration; and operating a haptic signal generator in response to the lane departure condition to deliver to a driver the haptic signal having the characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of alerting a vehicle driver to a lane departure condition comprising:
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detecting a lane departure condition; sensing and characterizing a background vibration caused by travel of the vehicle over a road surface; determining at least one characteristic of a haptic signal giving the haptic signal a high likelihood of being distinguishable from the background vibration by the driver; and in response to the lane departure condition, delivering to the driver a haptic signal having the at least one characteristic. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A haptic alerting system for a vehicle comprising:
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a lane detection system determining that the vehicle is departing from a path of travel; a vibration sensor detecting a background vibration caused by travel over a road surface; a controller determining a characteristic of a haptic signal required for the haptic signal to be distinguishable by the driver from the background vibration; and a haptic signal generator activated by the lane detection system to deliver the haptic signal having the characteristic to the driver. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification