VEHICLE, HEAD-UP DISPLAYING SYSTEM AND METHOD FOR ADJUSTING HEIGHT OF PROJECTION IMAGE THEREOF

A vehicle, a head-up displaying system and a method for adjusting a height of a projection image thereof are provided. The system includes a projector, a camera, a seat detecting module and a head-up controller. The camera is configured to detect an image having locations of the eyes of the driver and a predetermined reference point. The seat detecting module is configured to detect a position of a seat of the driver in the vehicle so as to obtain an actual horizontal distance between the eyes of the driver and the predetermined reference point. The head-up controller is configured to adjust a height of the projection image projected by the projector automatically according to the actual vertical distance. The system automatically controls the height of the projection image, and the projection image may be comfortable for the driver to view without any manual intervenes.