| 摘要 |
Provided is an engine (1) including: a primary balancer (12) which is driven by a crankshaft (4) via a gear drive device (11) and rotates in a direction reverse to a direction in which the crankshaft (4) rotates; an electric motor (14) which is driven by the primary balancer (12) via a belt drive device (13) and rotates in a direction reverse to the direction in which the crankshaft (4) rotates; an auxiliary flywheel (15) provided to a rotary shaft of the electric motor (14) via a clutch (16); and further an ECU (18) including first means for increasing and decreasing effective moment of inertia around the crankshaft (4) by engaging or disengaging the clutch (16) in accordance with an operating condition of the engine (1), and second means for controlling torque to be transmitted to the gear drive device (11) via the belt drive device (13) by power-driving or regeneratively driving the electric motor (14) in accordance with a crank angular acceleration. Thereby, vibrations of the engine (1) are suppressed, and gear noises due to the gear driving are reduced. |
