FIELD: electrical engineering.
SUBSTANCE: according to a method for the management of electrical current supply in a motor vehicle having a combustion engine, wherein the charge state of a battery, which can provide at least a current for the stator, ignition and lighting, is detected and characterised as a discrete variable (LowSOCFlag), which indicates whether the present state of charge is below or above the calibrated threshold value (LowSOCThresh). If the discrete variable indicates (S1) that the present state of charge is below a calibrated threshold, the battery is charged using a relatively high voltage (Setpoint1) for a predetermined period of time such that all battery cells are evenly and fully charged (S7–S13). If the discrete variable indicates that the present charge state is above a calibrated threshold, different temperature-dependent voltage settings (Setpoint0, Setpoint1, …a) of the electric generator in the vehicle are set (S2–S6) depending on the present energy conversion efficiency of the transmission, which is detected and characterised as an additional discrete variable (LowEffFlag).
EFFECT: technical result is identification and adjustment of low battery charge state, reducing fuel consumption and carbon dioxide emissions.
7 cl, 10 dwg
