Overview of functions
Combined the electrical machine electronics (EME) performs the following functions:
- Control of the internal components via the EME control unit
- Supply of the 12 V vehicle electrical system via the DC/DC converter
- Control of the electrical machine (speed, torque) with the help of the inverter
- Contact of the electrical machine via the bus bars
- Contact of the high-voltage battery
- Contact of the convenience charging electronics
- Contact of the electric A/C compressor
- Contact of the electric auxiliary heater
- Communication with other control units, especially the Electrical Digital Motor Electronics (EDME)
- Cooling of the electrical machine electronics
- Activation of the electromechanical parking lock
- Activation of electric vacuum pump
- Active and passive discharge of the link capacitor to a voltage below 60 volts
- Active evaluation of the signals for the high-voltage interlock loop
- Self-test and diagnostic function