| 摘要 |
<p>PURPOSE:To lower a cost of a controller operating a rotary electric machine mounted on a turbocharger rotary shaft either as a generator or as a motor, as required, and to improve energy efficiency. CONSTITUTION:The stator side coil of a generator 13 driven by an engine is made so that it can be switched over either to a star connection or a double star connection by a coil switchover unit 29 and, similarly, a stator side coil of a rotary electric machine 8 is made so that it can be switched over to either the star connection or the double star connection by a winding switchover unit 28. The generator operation side is wound in star connection to increase line output voltage, while the motor operation side is wound in double star connection to decrease line induced voltage. Then, even when the rotary electric machine 8 is operated as a generator and the generator 13 is operated as a motor, impressed voltage on the generator 13 becomes higher than the induced voltage thereof and a boosting circuit inside a power unit 18 in the power feeding route becomes unnecessary. Consequently, a cost can be lowered and energy efficiency can be improved.</p> |
