| 摘要 |
<p>An automatic side view mirror tracking and control system enables drivers of articulated vehicles such as tractor trailers to keep visual contact with the side and rear of the trailer throughout a turn while backing the vehicle. This is accomplished without driver intervention through the use of a microprocessor (81) receiving the outputs of either a plurality of ultrasonic transducers (1, 2, 3) or a pair of fluxgate compasses (41A, 41B). The microprocessor uses the aforementioned outputs to determine the rotational angle between the trailer (3) and the tractor (1). Based upon these determinations, the mirror (2) is moved to a position commensurate with the subject angle so that the driver of the vehicle is able to view the side and rear corner of the vehicle. A software filter prevents the mirror from being moved unless a predetermined change in the vehicle angle is detected.</p> |
