METHOD FOR CONTROLLING THE VERTICAL POSITION OF A VEHICLE AND ASSOCIATED CONTROL ASSEMBLY

A method for controlling a position of a floor (42) of a carriage (30) of a railway vehicle moving on rails, relatively to at least a platform (10), the carriage (30) comprising: - a body (32) comprising the floor (42), - at least one bogie (34), and -at least one suspension (36) interposed between the body (32) and the bogie (34) the method comprising the following steps: - determining the level difference between the actual position of the carriage (30) relative to the platform (10) and the expected position of the carriage (30) relative to the platform (10); - adjusting the height of the suspension (36) for compensating the determined level difference, wherein the step of determining the level difference includes : - capturing an image of at least one predetermined pattern (20) comprised on said at least one platform (10) with a camera (48) borne by the body (32), - comparing the captured image with a memorized reference image of the at least one pattern (20) of the said platform (10), - calculating the vertical displacement from the images to determine the level difference.