FRICTION MEASUREMENT DEVICE FOR A VEHICLE AND UTILIZATION THEREOF

摘要

A device mounted on a vehicle (2) for measuring the friction of a hard underlying surface, such as a roadway or a runway, whilst the vehicle is in motion, wherein a recording wheel (1) on the vehicle is brought into contact with the underlying surface and the movement of the wheel relative to the underlying surface is measured. The recording wheel is free-running with no braking means, and is mounted on the vehicle in such a manner that with the aid of an actuator (6, 7) it is capable of turning to an angle relative to the direction of travel of the vehicle. A means (9, 10) is provided to record the friction between the tread of the recording wheel (1) and the underlying surface. The device is designed to continously measure roadway or runway friction and at the same time, as a function thereof, to operate a road gritting apparatus (23) mounted on the vehicle.