Inverter Drive Device and Electrically Driven Vehicle System Using the Same

This is to reduce electromagnetic noise while reducing a calculation load of a microcomputer. An inverter drive device according to the present invention switches a first control mode, a second control mode, and a third control mode on the basis of vehicle speed information in a motor control device...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AJIMA, Toshiyuki, OYAMA, Kazuto, HOSHINO, Katsuhiro, HARA, Takafumi, ASHIDA, Akihiro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:This is to reduce electromagnetic noise while reducing a calculation load of a microcomputer. An inverter drive device according to the present invention switches a first control mode, a second control mode, and a third control mode on the basis of vehicle speed information in a motor control device that controls a power converter that drives a polyphase motor by a PWM pulse signal based on a carrier signal, the first control mode being for updating a command voltage signal to the power converter only on a ridge side or a trough side of the carrier signal, the second control mode being for updating a command voltage signal to the power converter both on a ridge side and a trough side of the carrier signal, and the third control mode being for updating a command voltage signal to the power converter only once of ridge-trough-ridge or trough-ridge-trough of the carrier signal.