Internal combustion engine and control method therefor

摘要

An engine including: a primary balancer driven by a crankshaft via a gear drive device and rotates in a direction reverse to a direction of the crankshaft; an electric motor driven by the primary balancer via a belt drive device to rotate in a direction reverse to the direction of the crankshaft; an auxiliary flywheel provided to a rotary shaft of the electric motor via a clutch. An engine control unit including a first device for increasing and decreasing effective moment of inertia around the crankshaft by engaging or disengaging the clutch in accordance with an operating condition of the engine, and a second device for controlling torque to be transmitted to the gear drive device via the belt drive device by power-driving or regeneratively driving the electric motor in accordance with a crank angular acceleration.

主权项

1. An internal combustion engine comprising:
a balancer which is driven by a crankshaft of the internal combustion engine via a gear drive device and rotates in a direction reverse to a direction in which the crankshaft rotates; an electric motor which is driven by the balancer via a belt drive device and rotates in a direction reverse to the direction in which the crankshaft rotates; a flywheel provided to a rotary shaft of the electric motor via a clutch; and a control unit configured to control torque to be transmitted to the gear drive device via the belt drive device by
engaging or disengaging the clutch in accordance with an operating condition of the internal combustion engine, andpower-driving or regeneratively driving the electric motor in accordance with a crank angular acceleration at least when the operating condition of the internal combustion engine is for normal running and idling.