Engine assembly and method for controlling an engine

A method for controlling a two-stroke engine operatively connected to a turbocharger, the turbocharger being in fluid communication with the engine to provide a boost pressure thereto, the method comprising:

• determining a boost target pressure of the turbocharger;
• determining an exhaust temperature representative of a temperature of exhaust gas being discharged by the engine;
• determining a boost target pressure correction factor based at least in part on the exhaust temperature, the boost target pressure correction factor being determined based at least in part on:
• the exhaust temperature, and
• a throttle position of a throttle valve regulating air flow into the engine,
• determining the boost target pressure correction factor comprises:
• accessing a predetermined dataset, and
• retrieving the boost target pressure correction factor from the predetermined dataset based on the throttle position and the exhaust temperature;
• and
• controlling the turbocharger to increase the boost target pressure of the turbocharger in accordance with the boost target pressure correction factor to increase an actual power output of the engine.

A method for controlling a two-stroke engine operatively connected to a turbocharger, the turbocharger being in fluid communication with the engine to provide a boost pressure thereto, the method comprising:

• determining a boost target pressure of the turbocharger, the boost target pressure being determined based at least in part on:
• a throttle position of a throttle valve regulating air flow into the engine, and
• a rotational speed of the engine,
• determining the boost target pressure of the turbocharger comprising:
• accessing a predetermined dataset, and
• retrieving the boost target pressure of the turbocharger from the predefined dataset based on the throttle position of the throttle valve and the rotational speed of the engine;
• determining an exhaust temperature representative of a temperature of exhaust gas being discharged by the engine;
• determining a boost target pressure correction factor based at least in part on the exhaust temperature;
• and
• controlling the turbocharger to increase the boost target pressure of the turbocharger in accordance with the boost target pressure correction factor to increase an actual power output of the engine.