Device for controlling the speed of travel and regulating the idling speed of automotive vehicles with an Otto engine

In a system for controlling the vehicle speed of travel as well as for regulating the idling speed of automotive vehicles having an Otto engine, comprising an actuator which adjusts the position of a regulating element for control of the vehicle speed as a function of the position of a desired-value transmitter as well as a closure element which determines the through-put passage cross section of a by-pass, the latter connecting a region in front of the regulating element with a region behind the regulating element, which closure element is displaceable by an automatically controlled actuator, the improvement wherein

• said first-mentioned actuator and said automatically controlled actuator constitute a single actuator means common both for the controlling of the vehicle speed of travel and for regulating the idling speed,
• said single actuator means being for actuating the closure element for regulating the idling speed, in a first operating range and being for operating the regulating member for controlling of the vehicle speed of travel in a second operating range.