Electronic ampere-hour meter for electric vehicle - modulates and amplifies voltage drop followed by demodulation and integration

The electronic ampere-hour meter is designed for use in electric vehicles. It measures the amount of hours consumed by such vehicles. The primary measurement input is the voltage drop (U1) obtained by passage of the motor current(Iv) through a standardised shunt resistor (S). this shunt resistor is...

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1. Verfasser: IONEL RADU ET FLORIN TEODOR TANASESCU
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:The electronic ampere-hour meter is designed for use in electric vehicles. It measures the amount of hours consumed by such vehicles. The primary measurement input is the voltage drop (U1) obtained by passage of the motor current(Iv) through a standardised shunt resistor (S). this shunt resistor is connected to the input of a modulator (MD) whose AC output is passed to an amplifier (AA) and a demodulator (DM). The DC output of this demodulator feeds an integrating circuit (IE). This produces a series of pulses in accordance with the integral of the current, and the pulses are fed to a display unit. A.COMPTEUR ELECTRONIQUE POUR AMPERES-HEURES.B.IL UTILISE EN TANT QUE GRANDEUR MESUREE, LA TENSION AUX BORNES D'UN SHUNT STANDARD CONNECTE EN SERIE AVEC LE MOTEUR DU VEHICULE, TENSION QUI EST AMPLIFIEE PAR LA MODULATION DU SIGNAL ENGENDRE PAR UN MULTIVIBRATEUR, LE SIGNAL DE COURANT CONTINU RESULTANT DE L'AMPLIFICATION DU SIGNAL MODULE ET DE LA DEMODULATION DE CE DERNIER ETANT ECHANTILLONNE PAR UN INTEGRATEUR D'ECHANTILLONNAGE, LE NOMBRE D'IMPULSIONS OBTENU A LA SORTIE DE L'INTEGRATEUR ETANT PROPORTIONNEL A L'INTEGRALE DU COURANT, CE NOMBRE ETANT AFFICHE SUR UN DISPOSITIF D'AFFICHAGE.C.COMPTEUR ELECTRONIQUE.