Signal shape and setpoint values
The engine control unit receives a measured value between 0 and 5 volts from the hall effect sensor. With the aid of the taught-in bottom limit position and an encodable slope, the DME converts this voltage into the throttle valve opening angle. The diagnosis monitors the two signals for an upper and lower voltage limit.
| Item | Explanation |
|---|---|
| 1 | Throttle valve opening angle |
| 2 | Hall effect sensor signal 1 |
| 3 | Hall effect sensor signal 2 |
| 4 | Signal voltage |
| 5 | Upper voltage limit |
| 6 | Lower voltage limit |
Observe the following setpoint values for the electromotive throttle actuator:
| Variable | Value |
|---|---|
| Servomotor frequency range | 400 to 16000 Hz |
| Supply voltage, hall effect sensors | 4.5 to 5.5 V |
| Hall effect sensor signal voltage | 0 to 5 volts |
| Hall effect sensor power consumption | 10 mA |
| Temperature range for hall effect sensors and servomotor | -40 °C to 140 °C |