METHOD FOR CONTROLLING AN ENGINE UNIT FOR A STRADDLED VEHICLE, ENGINE UNIT AND STRADDLED VEHICLE

摘要

An engine unit (EU) installed to be in a straddled vehicle (1) is provided. The engine unit (EU) includes an engine (10) having a cylinder (12), a crankshaft (15), and an electric component (18, 19), a rotating electrical machine (20) that is used in common as a starter motor and a generator, a power supply line (71, 72), an inverter (61) including a plurality of switching devices (611 to 616) for controlling a current flowing between the power supply line (71, 72) and the rotating electrical machine (20), and a controller (60). The controller (60) executes a power generation control (S8, S9, S22) of controlling the plurality of switching devices (611 to 616) of the inverter (61) to make the rotating electrical machine (20) perform power generation. The controller (60) executes, when the crankshaft (15) is rotated by an external force other than a rotating force of the rotating electrical machine (20) with the engine main body (10) being in a stop state, the power generation control (S22) in a start power generation region of not more than a cranking rotational speed.