Control apparatus for an internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 24, 2017
Grant Date -
May 28, 2015
app pub date -
Nov 26, 2014
filing date -
Nov 28, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control apparatus, which is for an internal combustion engine with a spark plug having a center electrode and a ground electrode disposed so as to form a spark discharge gap therebetween, includes a voltage applying section for applying a voltage to the spark discharge gap, a constant-voltage path including a constant-voltage element parallel-connected to the spark discharge gap of the spark plug for preventing the spark discharge gap from being applied with a voltage higher than a set voltage, and an operation control circuit for controlling an operating condition of the internal combustion engine. The operation control circuit is configured to measure a current-flowing time during which a current flows through the constant-voltage path when a voltage higher than the set voltage is applied to the constant-voltage path, and change the operating condition of the internal combustion engine in accordance with the measured current-flowing time.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- G01M Class
- 1317 Applications Filed
- 1056 Patents Issued To-Date
- 80.19 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- G01M Class
- 0 % this patent is cited more than
- 8 Age
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