Characteristic curve and setpoint values
The oscilloscope represents the voltage progression of an intact alternator. The level of the individual waves depends on the current load of the alternator. The length of the waves depends on the engine speed. The higher the engine speed the shorter the waves. At idle speed with consumer units switched on, an error-free alternator must deliver the following characteristic curve:
| Item | Explanation |
|---|---|
| 1 | Voltage |
| 2 | Characteristic curve |
| 3 | Frequency |
Observe the following target values for the alternator:
| Variable | Value |
|---|---|
| Voltage range | 6 to 16 V |
| Data frequency on serial data interface LIN | 19200 s |
| Maximum temperature of the stator winding | 260 °C |
| Maximum speed | 20000 RPM |
| Temperature range of controller | -40 to 140 deg C |
The oscilloscope represents the voltage progression of an intact alternator. The level of the individual waves depends on the current load of the alternator. The length of the waves depends on the engine speed. The higher the engine speed the shorter the waves. At idle speed with consumer units switched on, an error-free alternator must deliver the following characteristic curve:
| Item | Explanation |
|---|---|
| 1 | Voltage |
| 2 | Characteristic curve |
| 3 | Frequency |
Observe the following target values for the alternator:
| Variable | Value |
|---|---|
| Voltage range | 6 to 16 V |
| Data frequency on serial data interface BSD | 1164 to 1236 bit/s |
| Data frequency on serial data interface LIN | 19200 s |
| Maximum temperature of the stator winding | 260 °C |
| Maximum speed | 20000 RPM |
| Temperature range of controller | -40 to 140 deg C |