Acceleration and full power

Acceleration and full power

During acceleration, the electronic control unit brings about enrichment of the mixture concentration (graph A) as a function of signals from the coolant temperature sensor (1), rpm sensor (2) and throttle valve angular position sensor (3).

When the engine is working at full power, base pulse constnants (ti) are increased by a factor (K) according to opening angle (α) of throttle valve (3).

When the butterfly valve opening angle exceeds 70° (graph B), fuel power enrichment comes into operation and increases base pulse constant by about 10%.

When rpm exceeds 6000/min, the control unit restricts maximum rpm (suppressing injection pulses by cutting off the fuel supply).