Control unit for a motor vehicle

摘要

The invention relates to a control unit for a motor vehicle. Said control unit comprises a voltage converter which has an inlet for a direct voltage network. Said voltage converter is designed to generate a direct voltage smaller than an input voltage on the inlet for the direct voltage network and the direct voltage is emitted on the outlet side. According to the invention, the voltage converter comprises an inverter and a transformer which is connected to said inverter. Said voltage converter also comprises an inlet for a discharge signal and is designed to discharge by means of the inverter an intermediate circuit capacitor which is connected to the inlet of the direct voltage network in accordance with the discharge signal, and to reduce a working frequency of the inverter, in particular, compared to the frequency with no discharge signal.

主权项

1. A control unit (3) for a motor vehicle, the control unit (3) comprising:
a voltage converter (5) having an input (7) for a direct voltage supply system (10, 12, 16) and is configured to generate a direct voltage output that is less than an input voltage at the input (7) for the direct voltage supply system and to output the direct voltage on an output side,
the voltage converter (5) includingan inverter (55),a transformer (54) that is connected to the inverter (55), andan input (8) for a discharge signal and is configured to respond to the discharge signal by discharging, by way of the inverter (55), an intermediate circuit capacitor (10) that is connected to the input (7) for the direct voltage supply system and reducing a working frequency of the inverter (55).