Schematic overview and setpoint values
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The hall effect sensor is supplied with 5 Volts and ground by the DDE.
A bridge circuit (H bridge) is used to activate the servomotor. This permits activation of the servomotor in the opposite direction. The bridge circuit is monitored diagnostically. H-bridge designates an electrical gearshift with 5 shift elements in the shape of a capital H for shifting between.
| Item | Explanation |
|---|---|
| 1 | EGR controller |
| 2 | Cam disc |
| 3 | Bucket tappet |
| 4 | Housing |
| 5 | Seat |
Observe the following setpoint values for the EGR controller:
| Variable | Value |
|---|---|
| Servomotor supply voltage | 12 Volts |
| Activation frequency for servomotor | 1300 Hz |
| Blocking current for servomotor | 5 A |
| Hall effect sensor supply voltage | 4.5 to 5.5 V |
| Power consumption of hall effect sensor | 20 mA |
| Temperature range of hall effect sensor and servomotor | -40 °C to 140 °C |