Theft-deterrent system for electric bicycle using the motor in the absence of a battery

The invention relates to a method for deterring theft of a vehicle having a three-phase electric motor without a freewheel (10), comprising the steps of using the motor in a generator mode to power a motor control circuit (14) in an initial phase of rotating the motor through motion of the vehicle;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Bosson, Maël, Marguet, Raphaël, Alary, Theophile
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR,e.g. ARTICLE CARRIERS, CYCLE PROTECTORS APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFTOF CYCLES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CYCLE SADDLES OR SEATS CYCLE STANDS DEVICES FOR LEARNING TO RIDE CYCLES ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LOCKS INTEGRAL WITH CYCLES PERFORMING OPERATIONS SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a method for deterring theft of a vehicle having a three-phase electric motor without a freewheel (10), comprising the steps of using the motor in a generator mode to power a motor control circuit (14) in an initial phase of rotating the motor through motion of the vehicle; and, when the power supply level of the control circuit reaches a first threshold (Vmin), connecting by the control circuit first and second phases (b, c) of the three-phase motor continuously to a first power supply line (Vss), whereby the first and second phases are short-circuited and cause an increased braking force of the motor. During this time, the third phase of the motor may be connected to continue to supply energy to the control circuit.