Patent · US Expired

Ignition timing control apparatus for an internal combustion engine

US4856479A · kind A · utility

1Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1988
Grant dateAug 15, 1989
Priority date
Expiry dateMay 20, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/40
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An output of a knocking discriminator is integrated by an integrator and the integrated value is reset by a resetting device in response to the operation in the ignition timing. The resetting operation of the resetting device is caused when both a cylinder pulse signal and an output signal from a micro-computer are inputted, and the resetting operation is cancelled when at least one of the signals disappears.

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