Abstract: A heads-up display system for a vehicle has a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is adapted to project virtual images on a screen in the vehicle. The virtual images are superimposed on a real-world view visible to an operator of the vehicle. At least one tracking device is configured to obtain vision data of the operator. The controller is adapted to determine a gaze category of the operator based on the vision data, including a binary determination of whether the operator is gazing at the screen. The controller is adapted to identify a vision classification of the operator. The controller is adapted to modify the virtual images projected on the screen based in part on the gaze category and the vision classification.

Abstract: A heads-up display system for a vehicle has a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is adapted to project virtual images on a screen in the vehicle. The virtual images are superimposed on a real-world view visible to an operator of the vehicle. At least one tracking device is configured to obtain vision data of the operator. The controller is adapted to determine a gaze category of the operator based on the vision data, including a binary determination of whether the operator is gazing at the screen. The controller is adapted to identify a vision classification of the operator. The controller is adapted to modify the virtual images projected on the screen based in part on the gaze category and the vision classification.

Abstract: A method for controlling an operator drowsiness alert system for a vehicle reacts to a sensed or calculated level of drowsiness of the vehicle operator. The method includes entering a first drowsiness alert state associated with a first operator drowsiness alert if the sensed or calculated level of drowsiness is above a first predetermined level for a first predetermined time, where the first predetermined time is greater than zero. Additionally, the method includes transitioning from the first drowsiness alert state to a second drowsiness alert state associated with a second operator drowsiness alert if the sensed or calculated level of drowsiness is above a second predetermined level for a second predetermined time, where the second predetermined time is greater than zero.

Abstract: A method for controlling an operator drowsiness alert system for a vehicle reacts to a sensed or calculated level of drowsiness of the vehicle operator. The method includes entering a first drowsiness alert state associated with a first operator drowsiness alert if the sensed or calculated level of drowsiness is above a first predetermined level for a first predetermined time, where the first predetermined time is greater than zero. Additionally, the method includes transitioning from the first drowsiness alert state to a second drowsiness alert state associated with a second operator drowsiness alert if the sensed or calculated level of drowsiness is above a second predetermined level for a second predetermined time, where the second predetermined time is greater than zero.