Control of an alternator-starter for a hybrid electric vehicle having a disconnected high-voltage battery

A hybrid powertrain system includes an electric motor/generator unit having a multiphase asynchronous AC machine electrically connected to a multiphase bridge inverter. A high-voltage capacitor is electrically connected between positive and negative sides of a high-voltage DC power bus. High-voltage...

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Bibliographische Detailangaben
Hauptverfasser: NAMUDURI CHANDRA S, LUDWIG BRYAN M, VAN MAANEN KEITH D, GOPALAKRISHNAN SURESH
Format: Patent
Sprache:eng
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Zusammenfassung:A hybrid powertrain system includes an electric motor/generator unit having a multiphase asynchronous AC machine electrically connected to a multiphase bridge inverter. A high-voltage capacitor is electrically connected between positive and negative sides of a high-voltage DC power bus. High-voltage DC bus pre-charge circuits are electrically connected between gate drive bias power supplies and the multiphase bridge inverter. A low-voltage battery electrically charges the high-voltage DC link capacitor via the gate drive bias power supplies and the high-voltage DC bus pre-charge circuits when the high-voltage energy storage system is disconnected from the high-voltage DC power bus.