The engine continuously adjusts the valve timing to offer maximum intake and exhaust overlap during high-performance riding and minimal overlap during mid- to low engine speeds.
The diesel engine speed control with electric drive torque control strategy increases ship acceleration rate with 17% and reduces average engine thermal loading with 150 K.
The diesel, naturally, thrives at very low engine speeds.
Engine-performance tests demonstrate that increasing engine speed induces combustion instability, but this deterioration can be prevented by generating swirling flow during the intake stroke.
Engine RPM is used for setting engine speed (power) for climbing, descending, and/or landing.
The unit responds promptly to the gas pedal, but during cruising it also lets the engine speed drop, improving fuel economy.
Three different control architectures are examined for feedback control based on engine speed regulation during mode transitions.
Engine speed was retained at 1300 rpm during the trial.
