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

US4408581A · kind A · utility

Assignee

• VDO Adolf Schindling AG · DE

Inventors

• Manfred Pfalzgraf · Frankfurt am Main, DE
• Eckhart Kern · Hofheim, DE
• Harald Collonia · Königstein, DE

Key dates

• Filing date: Oct 22, 1981
• Grant date: Oct 11, 1983
• Expiry date: Oct 22, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B1/04
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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. A closure element, as well, 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, the closure element being displaceable by an automatically controlled actuator. The first-mentioned actuator and the automatically controlled actuator constitute a single actuator means common both for controlling the vehicle speed of travel and for regulating the idling speed. The single actuator actuates the closure element for regulating the idling speed, in a first operating range and operates the regulating member for controlling the vehicle speed of travel in a second operating range.