strategy works. When throttle is not closed and warm engine speed is less than 1400rpm, it
will recover fuel supply.
6. Full load
When engine is under full load, ECU will prolong basic injection time to obtain the
maximum output power and guarantee 3 way catalyst converter temperature is within
specification.
7.Speed limit
When engine speed exceeds threshold valve for10 seconds or instantaneously exceeds
a specified threshold value , ECU will stop injection control function. When speed returns
to normal, ECU restart injection control.
8. Atmosphere pressure correction
The atmosphere pressure changes with altitude, which brings change of volume
efficiency.and needs to correct the basic calibration (injection time and by-pass air charge).
9. Self-adapting
ECU has air/fuel ratio self-adapting ability and can stores difference between basic
MAP diagram and correction value of oxygen sensor during operation. These differences
will be stored permanentlyallowing system and components to be correct gradually as a new
one. This function contains automatic conformance check and automatic diagnosis of
memory parameter.
10. Power balance
When normal electrical components operating cause battery voltage below 12.2V, the
electricity demand of electrical components is over than generator ability. ECU will
gradually increase engine idle speed to generate enough electricity energy. When power
balance is positive, increased idle speed will cancel.
4. Structural composition
4.1 Fuel supply system
The fuel supply system is semi-none-fuel-return type, only one pipe connecting fuel
tank and fuel rail. The system has the following advantages:if accident occurs, the fire
hazard possibility will be lowered to minimum by none-fuel-return pipe, little fuel vapor in
fuel tank, low fuel temperature in fuel tank.
The fuel supply system includes: electric fuel pump, diaphram fuel pressure regulator,
fuel pipe, fuel filter, fuel rail, quick coupler, fuel injector etc.
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