Electric Machines
Electric machines A and B together make up the electrical part of the hybrid drive in the E72. They are both integrated into the active gearbox and are not accessible for Service employees. To make the operating principle of the active gearbox and the hybrid drive easier to understand, we will describe a few characteristics of these electric machines here.
ACTIVE GEARBOX WITH HIGHLIGHTED ELECTRIC MACHINES EXPLANATION CHART
| Index | Explanation |
|---|---|
| 1 | Electric machine A |
| 2 | Electric machine B |
| 3 | Rotor of electric machine B |
| 4 | Main shaft of the active gearbox |
| 5 | Connection for the position sensor of electric machine B |
| 6 | Coils on stator of electric machine B |
| 7 | High-voltage connection for three phases of electric machine A |
| 8 | Coils on stator of electric machine A |
VARIABLE REFERENCE CHART
| Variable | Value for E-Machine A | Value for E-Machine B |
|---|---|---|
| Maximum power | 67 kW at 3000 RPM | 63 kW at 2500 RPM |
| Maximum torque | 260 Nm at 0 to 2500 RPM | 280 Nm at 0 to 2000 RPM |
| Maximum speed | 10, 500 RPM | 13, 500 RPM |
| Nominal voltage | 300 V | 300 V |
| Nominal current level | 300 A | 300 A |