| 摘要 |
This power-assisted supercharger (10) comprises: a turbo supercharger (12) for rotatingly driving a turbine (12a) using exhaust gas (7) of an engine (40), rotatingly driving a compressor (12b) using the turbine, compressing intake air (5), and feeding the intake air to the engine; an electric motor (14) for supplying rotational force to the turbo supercharger, the electric motor being connected to a rotary shaft (12c) connecting the turbine and the compressor to each other; and a motor control device (20) for controlling in open loop fashion, on the basis of the engine accelerator position (A) and the rotation frequency of the engine (NE), a drive current (I) of the electric motor necessary for assist operation of the turbo supercharger. This power-assisted supercharger makes it possible to reduce turbo lag as a standalone unit, has a small power consumption even in a region at which the engine rotation speed is high, makes it possible to prevent any malfunction or unnecessary power consumption, makes it possible to simplify the control system, and is associated with a small installation space or mass. |
