DRIVE UNIT AND ELECTRIC VEHICLE

PROBLEM TO BE SOLVED: To suppress the controllability of an inverter from lowering in switching control of an inverter by pulse width modulation control to control of the inverter by rectangular wave control.SOLUTION: A voltage phase command * is set so that a voltage phase command variation s as a...

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Bibliographische Detailangaben
Hauptverfasser:	KUROMATSU YUTAKA, YAMAKAWA JUNJI, YAMADA KATASHIGE, ASHIDA SHINJIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress the controllability of an inverter from lowering in switching control of an inverter by pulse width modulation control to control of the inverter by rectangular wave control.SOLUTION: A voltage phase command * is set so that a voltage phase command variation s as a difference between a current value and a previous value of a voltage phase command s* is not more than a variation allowance slim, regardless of whether an inverter should be controlled by PWM control or rectangular wave control (S330-S430) and the next switching electrical angle sw and/or a switching pattern is set (S440, S450).