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Engine Control
Technology by Micro-Craft
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Performance tools and
instruments for electronic fuel
injection and wideband air/fuel
ratio analysis for internal
combustion engines.
Here you will find well engineered and
manufactured electronic measurement and
control products for internal combustion
engines. Our products are best suited, but
not limited, to automotive and motorcycle
performance sport applications. Because of
it's general design and interface, most can
be used on any car or motorcycle engine.
We also publish on our web pages every detail
about our products, it's design, particular
technology and possible application.
A DIY air fuel or lambda meter kit
is also available for the Do It
Yourself individualist.
Detailed pricing information can be
found by visiting the secure
Micro-Craft eStore.
Link to the
AFM-1 Pop-Up-Picture. |
AFM-1 Wide-Band Air Fuel Meter with
real-time data logger :
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This hand held instrument uses a Wide-Band
O2 sensor (Bosch LSU-4),
which allows the user to take
precision Air-Fuel-Mixture
measurements through oxygen
concentration analysis in the
exhaust gas.
Additional connectivity is provided
for various inputs, like RPM, Throttle-Position-Sensor,
Manifold-Absolute-Pressure,
Mass-Air-Flow, and up to eight
K-Thermocouple temperature inputs.
Programmable O2 Sensor simulation
outputs allow you to control a stock
fuel injection, an external gauge or
indicator of your choice.
The instrument can be connected to a
MS-Windows computer to facilitate a variety
of functions like real-time data-graph and
data-logging.
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left :
LSU-4 Lambda sensor
right :
Windows user control software |
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Wide Band versus Narrow Band sensing Technology :
The wide-band sensing technology is one of the key elements in
our products and designs. It allows for a lambda range of 0.7 to
1.4, which spans from -30% of the stoichiometric airfuel
ratio to +40%. Gasoline values are from 10.0 (rich) to 20.0
(lean) with the ideal point being at 14.7. By taking into
account the less accurate non linear regions of a typical narrow
band sensor, a lambda ratio from 0.95 to 1.05 (gasoline 14.0 to
15.5) can be measured, which is +/- 5% (any data outside
of +/- 2% is already less accurate).
What this means is that lambda values where the engine outputs
the most power. within 0.85 to 0.88 (gasoline 12.5 to 13) is
already outside the narrow band sensing range. Please follow the
link for more details about the
wideband lambda sensing technology. |
ECC-1 fuel
injection control and ignition timing :
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Fuel-Injection with Wide-Band O2 real-time closed
loop control and ignition timing This product is
currently under development. it's NOT a teaser, just
information about new product developments. We
appreciate your understanding and patience.
We used the Air-Fuel Meter technology as a stepping
stone to the Wide-Band O2 closed loop control technology
for our fully programmable and adaptable fuel injection
module. (no direct inject). It also supports ignition
timing control. Important
Note :
Our products were designed for testing, diagnostic,
racing and off road use (not to be used on highways or
other DOT governed areas) and are intended to be used
legally, not in violation of existing State and Federal
Clean Air, Safety or other applicable laws. Where doubt
exists, DO NOT use our products without checking your
state and or private attorney. |
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