METHOD AND DEVICE FOR DIGITAL REGULATING THE RUNNING SPEED OF A MOTOR VEHICLE.

摘要

The device for digital adjustment of the speed of movement of a motor vehicle comprises means (47, 51, 52) giving the value of the effective speed, a storage means (46) memorizing an assigned value proportional to the desired speed, means (60, 62, 119) for making a comparison between the actual value and the assigned value, and an adjustment means (78, 100) which can be controlled by the difference between these values and which acts for example on the shutter d 'strangulation. By pressing a key (14 to 16), the actual value is transferred to the assigned value storage means (46) and gives the travel speed. To modify the displacement speed, a second means for memorizing the assigned value (41) is provided in which a ramp can be generated by digital counting processes. During such a speed change, the ramp moment value provides an additional assigned value, so the speed is brought to the new value using that additional assigned value. The ramp preferably has two different slopes, respectively a slope that is always lower.