METHOD AND DEVICE FOR AUTOMATICALLY CONTROLLING A VEHICLE
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Abstract
A method for automatically controlling a vehicle includes giving a reference local path and a potential speed of the vehicle. The method also includes calculating a stirring angle automatic setpoint that makes it possible to calculate a lateral acceleration proportional to the square of the potential speed of the vehicle, making the vehicle describe an arc of a circle including a point of intersection with the reference local path at a distance from the vehicle. A speed setpoint is generated and set to a value equal to that of the potential speed when the lateral acceleration has a value lower than a maximum permissible lateral acceleration value and the value of the potential speed is decreased when the lateral acceleration has a value higher than or equal to the maximum permissible lateral acceleration value so as to calculate a reduced lateral acceleration by repeating the calculating.
13 Citations
20 Claims
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1-10. -10. (canceled)
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11. A method for automatically controlling a vehicle, comprising:
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giving a reference local trajectory and a potential speed of the vehicle; calculating a turning angle automatic set point that causes the vehicle to describe a circular arc including a point of intersection with said reference local trajectory'"'"' at a distance from the vehicle, including calculating a lateral acceleration proportional to the square of the potential speed of the vehicle describing said circular arc; comparing said calculated lateral acceleration with a maximum permissible lateral acceleration value; generating a speed set point set to a value equal to that of the potential speed when said lateral acceleration has a value lower than said maximum permissible lateral acceleration value; and adjusting, including reducing the value of the potential speed when said lateral acceleration has a value greater than or equal to said maximum permissible lateral acceleration value so as to calculate a reduced lateral acceleration by reiteration of the calculating step. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification