Characteristic curve and setpoint values
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There is no speed control for the turbocharger coolant pump (despite the design of the pulse width modulation). The turbocharger coolant pump has an operating point of 2750 rpm. Furthermore, the coolant pump is not suitable for operation with a permanent pulse. In addition, the coolant pump can be switched to low power via the activation connection.
| Item | Explanation |
|---|---|
| 1 | Differential pressure |
| 2 | Characteristic curve at 12 V rated voltage |
| 3 | Volumetric flow |
Observe the following setpoint values for the turbocharger coolant pump:
| Variable | Value |
|---|---|
| Speed (operating point) | 2750 rpm |
| Supply rate (nominal operation) | 800 l/h |
| Voltage range (full power output) | 9 to 16 V |
| Maximum current consumption in normal operating mode | 1.2 A to 1.4 A |
| Temperature range of coolant temperature | -40 to 135 °C |
| Temperature range | -40 to 140 deg C |