An apparatus for preventing a battery from being over-discharged according to the present invention includes: a latch relay which connects or disconnects the load of the vehicle; a voltage measuring circuit which measures a voltage of the auxiliary battery for every predetermined period when a ignition of the vehicle is off, and compares the measured voltage of the auxiliary battery with one or more over-discharge reference values that serve as references for determining whether the auxiliary battery is over-discharged; and a control unit which turns off the latch relay when the voltage of the auxiliary battery is equal to or less than the over-discharge reference value as a result of the comparison by the voltage measuring circuit, in which the voltage measuring circuit outputs an enable signal for operating the control unit when the voltage of the auxiliary battery is equal to or less than the over-discharge reference value.
APPARATUS FOR PREVENTING OVER-DISCHARGE OF BATTERY
2018-05-10
Patent
Electronic Resource
English
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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