Patent ID: 9714056
Date: 2017-07-25
CPC Classifications: B62D,G05D

Claim:
1. A method of controlling a vehicle having an active aerodynamic control system, the method comprising: determining if a speed of the vehicle is equal to or greater than a pre-defined speed, or if the speed of the vehicle is less than the pre-defined speed, with a vehicle controller including tangible non-transitory memory having computer executable instructions recorded thereon, including an aerodynamic control algorithm, and a processor operable to execute the aerodynamic control algorithm to determine whether to position the active aerodynamic control system in a lift generating position or a downforce generating position; determining if a steering angle of the vehicle is equal to or less than a minimum angle value, or equal to or greater than a maximum angle value; determining if a lateral acceleration of the vehicle is equal to or less than a minimum lateral acceleration value, equal to or greater than a maximum lateral acceleration value, or greater than the minimum lateral acceleration value and less than the maximum lateral acceleration value, when the speed of the vehicle is equal to or greater than the pre-defined speed, and when the steering angle is greater than the minimum angle value and less than the maximum angle value; determining if a corner brake fluid pressure at any wheel of the vehicle is equal to or less than a minimum brake fluid pressure, equal to or greater than a maximum brake fluid pressure, or greater than the minimum brake fluid pressure and less than the maximum brake fluid pressure, when the speed of the vehicle is equal to or greater than the pre-defined speed, when the steering angle is greater than the minimum angle value and less than the maximum angle value, and when the lateral acceleration of the vehicle is greater than the minimum lateral acceleration value and less than the maximum lateral acceleration value; positioning the active aerodynamic control system, with the vehicle controller, in a position to generate lift when the speed of the vehicle is equal to or greater than the pre-defined speed, the steering angle is equal to or less than the minimum angle value, and the corner brake fluid pressure at any wheel of the vehicle is equal to or less than the minimum brake fluid pressure; and positioning the active aerodynamic control system, with the vehicle controller, in a position to generate downforce when the speed of the vehicle is equal to or greater than the pre-defined speed, the steering angle is equal to or greater than the maximum angle value, and the corner brake fluid pressure at any wheel of the vehicle is equal to or greater than the maximum brake fluid pressure.