Lane departure warning method and system thereof
First Claim
1. A lane departure warning method, comprising:
- establishing a driver model, wherein the driver model generates a steering angle according to a lateral position error of a vehicle being driven to control driving of the vehicle;
performing a system identification process on the lateral position error and the steering angle, so as to obtain specific information of the driver model;
performing an estimation process on the specific information and a plurality of raw statistical data, so as to obtain a time to lane crossing; and
performing a decision process on the time to lane crossing and a driver drowsiness index, so as to obtain a lane departure warning strategy.
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Abstract
A lane departure warning method and system thereof are provided. First a driver model is established, wherein the driver model is established according to a lateral position error of a vehicle being driven and a steering angle generated by a driver for controlling the vehicle. Next, a system identification process is performed on the lateral position error and the steering angle, so as to obtain specific information of the driver model. An estimation process is performed on the specific information and a plurality of raw statistical data, so as to obtain a time to lane crossing (TLC). A decision process is performed on the TLC and a driver drowsiness index, so as to obtain a lane departure warning strategy.
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Citations
20 Claims
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1. A lane departure warning method, comprising:
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establishing a driver model, wherein the driver model generates a steering angle according to a lateral position error of a vehicle being driven to control driving of the vehicle; performing a system identification process on the lateral position error and the steering angle, so as to obtain specific information of the driver model; performing an estimation process on the specific information and a plurality of raw statistical data, so as to obtain a time to lane crossing; and performing a decision process on the time to lane crossing and a driver drowsiness index, so as to obtain a lane departure warning strategy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lane departure warning system, comprising:
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a system identification module, establishing a driver model and performing a system identification process on a lateral position error of a vehicle being driven and a steering angle, so as to obtain specific information of the driver model; an estimation module coupled to the system identification module, performing an estimation process on the specific information and a plurality of raw statistical data, so as to obtain a time to lane crossing; and a decision module coupled to the estimation module, performing a decision process on the time to lane crossing and a driver drowsiness index, so as to obtain a lane departure warning strategy. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification