Control system for electrically powered road vehicle - returns road and motor speed signals to determine optimum operating condition for drive via CVT transmission

An electrically powered road vehicle has an accelerator pedal providing an input that is compared (20) with a speed sensor (81) signal. A computer (21) provides an input to a unit (30) to determine the maximum motor (70) speed. The motor speed (71) is fed back and is compared (40) to allow a process...

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Bibliographische Detailangaben
Hauptverfasser:	OHMAE, TSUTOMU, HITACHI, JP, OKUYAMA, TOSHHIAKI, IBARAKI, JP, MASAKI, RYOSO, HITACHI, JP, NAOI, KEIGO, KATSUTA, JP, OBARA, SANSHIRO, IBARAKI, JP, SHIOYA, MAKOTO, TOKIO/TOKYO, JP
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 BLASTING 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 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 ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS REGULATING ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An electrically powered road vehicle has an accelerator pedal providing an input that is compared (20) with a speed sensor (81) signal. A computer (21) provides an input to a unit (30) to determine the maximum motor (70) speed. The motor speed (71) is fed back and is compared (40) to allow a processor to control a rectifier (60) providing the power input. Power is transmitted to the road wheels via a continuously variable transmission that is controlled (90, 91) to provide the optimum ratio. ADVANTAGE - Improved efficiency of operation.