Method and circuit for controlling charging in a dual...

Details Method and circuit for controlling charging in a dual... Method and circuit for controlling charging in a dual...

H - Electricity

02

J

H02J 7/14 (2006.01)

Patent

CA 2308273

A control circuit for controlling the recharging of two batteries in a dual battery vehicle electrical system includes a charging circuit (20) for stepping up the voltage of a reserve battery (RES.), so that it can be applied to a starting battery (HPB), an alternative circuit path (18, 19) to allow charging of both batteries by the alternator (A) when the vehicle engine is running, and a controller (30) for switching the connection of the batteries through the charging circuit (20) and the alternative circuit path (18, 19) under various combinations of conditions.

L'invention concerne un circuit de commande servant à commander la recharge de deux batteries d'un système électrique de véhicule à deux batteries, qui comporte un circuit (20) de charge servant à élever la tension d'une batterie de réserve (RES.) de façon à pouvoir l'appliquer à une batterie de démarrage (HPB), un trajet (18, 19) de circuit d'alternateur permettant de charger les deux batteries par l'alternateur (A) lorsque le moteur du véhicule fonctionne, et un organe de commande (30) servant à commuter la connexion des batteries par le circuit (20) de charge et le trajet (18, 19) de circuit d'alternateur dans diverses combinaisons de conditions.

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