LIFAN Power USA Energy Storm ESI-7000iER-EFI, Operating Instructions And Owner'S Manual

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11
Automotive Type Electronic
Fuel Injection System
This generator has a computer-controlled fuel and ignition system. An on-board
computer, referred to in this manual as an ECU (Engine Control Unit) utilizes a
series of virtual maps (lookup tables) that provide values for various aspects of
engine performance. The ECU analyzes data provided through the various
engine sensors to determine the best combination of values from these lookup
tables to provide optimum performance. This is communicated to the generator
components through the use of digital signals. This is in contrast to non-
computer-controlled ignition systems that rely on mechanical feedback, and
sometimes vacuum, to control the motion of the various components.
This generator is equipped with an Electronic Fuel Injection (EFI) system, which
provides increased efficiency over carbureted fuel systems. In a carbureted fuel
system, the fuel and air are mixed in a carburetor that relies on a mechanical
choke system controlling the rate of air intake to maintain the vacuum necessary
to mix the fuel with air for combustion.
In a fuel injection system, the ECU calculates and adjusts the fuel mixture
directly, based on real-time feedback, allowing for greater fuel and emissions
efficiency. The ECU also controls the timing for the spark plug, dynamically
controlling the speed of the engine depending on requirements for power
generation.
When there is a problem reported by a generator component (such as an engine
sensor), the ECU stores a fault code for it. These fault codes can be read in the
Wattage (P) field of the digital display, and then used to identify the issue and
correct it. For more information on fault codes and how to access them, refer to
the Fault codes section of this manual. For more information on the digital
display and its use, refer to the Digital display section of this manual.