FIELD: transportation.
SUBSTANCE: invention relates to automotive industry. Power supply control device mounted on vehicle comprises: generator driven by motor; first and second batteries connected in parallel to generator; SOC-sensor of charge condition of first battery and charge controller. Controller controls charging of first battery by means of generator based on recuperative predicted value, evaluated according to information on state of vehicle when first battery SOC exceeds specified threshold value. Charge is controlled independently from recuperative predicted value, when first battery SOC is less than specified threshold value. Controller receives surplus value of second battery and when it exceeds value of remaining first battery charge, controls charge based on recuperative predicted value, despite fact that first battery SOC is less than threshold value.
EFFECT: reduced fuel consumption and increased service life of battery.
4 cl, 3 dwg
