초록

A method for charging a lead battery is provided. In the method, a SOC is controlled so as to be less than 100%, and when the lead battery has not been charged and discharged for a predetermined time, refresh charge is performed so that the SOC becomes at least 90% or more.

대표청구항 ▼

A method for charging a lead battery is provided. In the method, a SOC is controlled so as to be less than 100%, and when the lead battery has not been charged and discharged for a predetermined time, refresh charge is performed so that the SOC becomes at least 90% or more. s dimensioned in accordan

A method for charging a lead battery is provided. In the method, a SOC is controlled so as to be less than 100%, and when the lead battery has not been charged and discharged for a predetermined time, refresh charge is performed so that the SOC becomes at least 90% or more. s dimensioned in accordance with the formula: wherein L is the inductance and C is the discharge capacitance of one lattice network element in the LC lattice network structure. 14. The system as claimed in claims 12 or 13, wherein said capacitance, Ca, is dimensioned in accordance with the formula: with fresbeing a pronounced resonant frequency. 15. The system as claimed in claim 10, wherein said winding sections use field coil technology, which form a lattice network structure comprising inductances and discharge capacitances, with said impedance being used for electrical termination of the lattice network structure. 16. The system as claimed in claim 15, wherein said impedance is designed such that said impedance forms a termination of said lattice network structure which damps common-mode currents, which are excited asymmetrically with respect to ground in motor phases, in said converter system. 17. The system as claimed in claim 10 further comprising a low-voltage motor which has low resonant frequencies by virtue of its geometric and/or electrical construction.