| 摘要 |
<p>The digital device for regulating the running speed of a motor vehicle comprises means (47, 51, 52) giving the value of the actual speed, storage means (46) for storing an order value proportional to the desired speed, means (60, 62, 119) for effecting a comparison between the real value and the order value, and regulating means (78, 100) which may be controlled by the difference between these values and acting for example on the throttle valve. By actuating a key (14 to 16) the real value is transferred into the storage means of the order value (46) and gives the running speed. To value the running speed, second means have been provided for storing the order value (41) wherein a ramp may be generated by digital counting processes. During such variation of the speed, the value of the moment of the ramp provides an additional order value, so that the speed is brought to the new value by means of this additional value. The ramp presents preferably two different gradients respectively, one gradient becoming always lower. </p> |
