Patent · US Expired

Device for regulating the traveling speed of a motor vehicle

US4170274A · kind A · utility

11Cited by
7References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 16, 1977
Grant dateOct 9, 1979
Priority date
Expiry dateSep 16, 1997

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60W2710/0644
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A device for regulating the traveling speed of a motor vehicle, compares a signal proportional to the actual speed of the vehicle with a signal proportional to the set or desired speed, and superposes on one or both of the signals a periodic signal having at least one periodically recurring section of non-linear characteristic, to obtain a control signal whose amplitude is modulated as a function of the magnitude of deviation between the actual speed signal and the set speed signal, and the control signal is transmitted to a control stage influencing the fuel-air mixture supplied to the engine of the vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.