Embedded supply system for use in vehicle, has control device controlling charging and discharging of secondary battery based on state of charge of primary battery and state of power generated by power generator

摘要

System has a primary battery (10) storing electric energy and charged by a power generator (12). A secondary battery (20) supplies power to an emergency electrical device (18) when power from the primary battery is not normal. A control device controls the charging and discharging of the secondary battery based on a state of the charge of the primary battery and a state of power generated by the power generator.