CPC B62D 6/003 (2013.01) [B60R 11/04 (2013.01); B62D 5/0481 (2013.01); B62D 6/008 (2013.01); B62D 15/021 (2013.01); B60R 2300/804 (2013.01)] | 20 Claims |
1. A yaw stability control system for a motor vehicle having a plurality of wheels and a longitudinal centerline, the yaw stability control system comprising:
at least one camera adapted to be mounted to the motor vehicle and directed along the longitudinal centerline of the motor vehicle, with the at least one camera generating a video signal in response to the at least one camera capturing at least one lane marking associated with a boundary of a driving lane;
a plurality of wheel speed sensors for generating a plurality of speed signals that correspond to a speed of an associated one of the wheels;
a yaw angle sensor for generating a yaw signal that corresponds to a current yaw angle of the motor vehicle;
a steering angle sensor for generating a steering signal that corresponds to a steering angle;
a reaction wheel having a moment of inertia and adapted to mount to the motor vehicle for angularly rotating within a horizontal plane;
an electric motor connected to the reaction wheel for angularly rotating the reaction wheel;
a processor coupled to the at least one camera, the wheel speed sensors, the yaw angle sensor, the steering angle sensor, and the electric motor; and
a memory including instructions such that the processor is programmed to:
determine a desired yaw angle of the motor vehicle based on the video signal, the speed signals, the yaw signal, and the steering signal; and
generate an actuation signal associated with the desired yaw angle;
wherein the electric motor angularly rotates the reaction wheel at a predetermined angular rate in a predetermined rotational direction to produce a counter-acting torque that rotates the motor vehicle to the desired yaw angle, in response to the electric motor receiving the actuation signal from the processor; and
wherein the reaction wheel comprises one of a ring and a solid disc.
|