Patent · US Expired

Vehicle accessory control system

US4642770A · kind A · utility

16Cited by
8References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 18, 1985
Grant dateFeb 10, 1987
Priority date
Expiry dateApr 18, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05D23/1917
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A control system for engine-driven vehicle accessories generates sets of values representing a recent history of the engine loading and of the operational status of the accessories. History factors are derived from the sets of values. The accessories are controlled as a function of sensed parameters and of comparisons between the history factors. The sets of values are periodically updated.

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