Patent · US Expired

Control apparatus and method for an internal combustion engine

US4984167A · kind A · utility

2Cited by
7References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 3, 1989
Grant dateJan 8, 1991
Priority date
Expiry dateFeb 3, 2009

Classification

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

Abstract

In a control apparatus for an internal combustion engine for receiving outputs of a crank angle sensor, air flow sensor, etc., calculating control values from these outputs using a microcomputer to actuate actuators; calculated timings at which the respective actuators are deactuated are compared in advance with each other, the control value for the actuator which should be deactuated earliest is stored in an output compare register, and a deactuation signal for the actuator is generated with count matching of two inputs to a comparator of the output compare register. Thus the respective actuators are sequentially controlled.

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