User's Manual

User Manual VC-EVCC

The following figure describes the recommended external wiring of CP and PE between the

inlet and the VC-EVCC via a 2-core-twisted-pair cable.

Figure 6-1 Recommended Wiring of CP and PE

6.2.3 LIN

A LIN communication with a data rate of 19.2 kbps between charging infrastructure and

vehicle via CP line according to SAE J3068 [9] is available.

6.3 Proximity Detection Logic (Plug Present)

A Functional Building Block to detect whether a charging cable is connected and to

determine the current load capacity of the connected cable. The FBB reads different resistor

values representing different currents the charging infrastructure is capable of and is also

capable to wake-up the hardware on communication. The implementation is according to

IEC 61851 [4] and SAE J1772 [10].

 Meas. Range: 100Ω … 1500Ω based on a vehicle inlet resistor of 4700Ω

or 2700Ω

 Pull up resistance: 330Ω

 Filter: Lowpass (200Hz corner frequency)

 Accuracy: According to IEC 61851 and SAE J1772

 Diagnostics: Open Load

Short to Ground

Short to Battery

Out of Range

6.4 PT1000 Temperature Sensor Input

An analog input to connect PT1000 temperature sensors to it. A constant current source is

used to supply the temperature dependent sensor. The resulting voltage drop can be

measured at an ADC input of the µC.

 Meas. Range: -50°C … +150°C (800Ω … 1,6kΩ)

 Meas. Current: 1mA