DRIVE CONTROL DEVICE FOR VEHICLE, DRIVE CONTROL METHOD FOR VEHICLE AND OVERVOLTAGE PROTECTION CIRCUIT

PROBLEM TO BE SOLVED: To make the power consumption of an overvoltage protection circuit more suitable. SOLUTION: A pulse signal is input to a gate terminal of a transistor 12 of an overvoltage protection circuit 3 connected in parallel to a motor 4, and the carrier frequency f of the pulse signal i...

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Bibliographische Detailangaben
Hauptverfasser:	ORITA SHUICHI, MOMOSE TOMOAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES 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 EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT 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 make the power consumption of an overvoltage protection circuit more suitable. SOLUTION: A pulse signal is input to a gate terminal of a transistor 12 of an overvoltage protection circuit 3 connected in parallel to a motor 4, and the carrier frequency f of the pulse signal is controlled, whereby the switching loss of a transistor 12 can be adjusted by controlling the switching frequency f of a transistor 12 of the overvoltage protection circuit 3, so that even if the power consumption of a discharge resistance 13 changes, the power consumption of the overvoltage protection circuit 11 can be made more suitable as a whole. COPYRIGHT: (C)2008,JPO&INPIT