FIELD: electricity.
SUBSTANCE: secured battery charging system of the vehicle from the power supply is mounted on a motor vehicle and includes means for measuring the mains frequency, means for supplying the current pulses to the supply network, voltage measurement means between the ground and neutral power supply, analog filter to filter out high-frequency measured voltages digital filter for filtering the low-frequency voltages, the filtered analog filter, and means for determining the resistance between earth and neutral network voltages filtered by the digital filter, and the amplitude of the current pulses. The digital filter includes an averaging filter, that determines the average of N measurements of voltage, split time interval T+T/N, where T - period of the network, measured by means of measuring the frequency of the network.
EFFECT: improving the quality of the mains earth is connected to the charging device of the vehicle.
10 cl, 3 dwg
