Safety circuit arrangement for an electrical drive unit

A vehicle, comprising:

• an electric drive unit, the electric drive unit comprising a traction battery, an intermediate circuit capacitance connected in parallel with the traction battery, and an electric machine that is supplied with electric power via the traction battery, the electric machine having a plurality of phases connectable to the traction battery via a controllable inverter having a plurality of switch elements;
• a safety circuit arrangement for the electric drive unit, the safety circuit arrangement comprising:
• a discharging circuit configured, in an activated operating state, to take a prescribable discharge current from the intermediate circuit capacitance;
• a short circuit control circuit, including a plurality of diodes, configured, in the activated operating state, to short at least some of the plurality of phases of the electric machine by actuating some of the plurality of switch elements;
• a supply voltage circuit configured to provide a supply voltage based on an input voltage supplied to the supply voltage circuit, wherein the input voltage supplied is an intermediate circuit voltage that is applied to the intermediate circuit capacitance;
• and implemented as a series circuit comprising at least an electrical supply resistor and a diode,
• an activation element configured to close an activation path when a switch-on condition is present in order to activate the discharging circuit and the short circuit control circuit by providing the supply voltage;
• and
• a stabilization circuit consisting of a transistor, connected to the input voltage via at least an electrical resistor and arranged between the supply voltage circuit and the activation element;
• wherein the supply voltage is output from the supply voltage circuit to an input of the stabilization circuit, and a stabilization voltage is output from the stabilization circuit to an input of the activation element.