Digital timing method for spark advance
Patent
·
OSTI ID:5856547
A method is described for controlling the point in time within a time interval ..delta..A of an output pulse for setting spark firing of an engine, the time interval ..delta..A corresponding to the speed at which the engine is running, the time interval ..delta..A being represented by a counted number of clock pulses which occur at a first, given clock rate. The method consists of the steps of: repeatedly combining a quantity which is proportional to a desired spark advance with itself at a second clock rate which is related to but less than the first given clock rate, where the quantity may assume one or more values during the course of the combining step; producing the output pulse when the combined quantity equals or exceeds the counted number of clock pulses, so that the point in time of the output pulse is a function of the value or values assigned to the quantity during the combining step; and setting the spark firing of the engine based on the point in time of the output pulse.
- Assignee:
- RCA Corp., Princeton, NJ
- Patent Number(s):
- US 4575809
- OSTI ID:
- 5856547
- Country of Publication:
- United States
- Language:
- English
Similar Records
Spark timing control device for an internal combustion engine
System for determining time duration of angular rotation
Digital time delay
Patent
·
Tue Jun 05 00:00:00 EDT 1984
·
OSTI ID:6470491
System for determining time duration of angular rotation
Patent
·
Mon Feb 09 23:00:00 EST 1987
·
OSTI ID:6734310
Digital time delay
Patent
·
Fri May 09 00:00:00 EDT 1986
·
OSTI ID:6759992