MOBILITY DOCK
Technische Details
Electrical functions
1. self-test at startup
A self-test is carried out when the device is started/booted up. All important functions are checked: e.g. relay, RCD sensor, protective conductor. During operation, permanent monitoring takes place (of the protective earth conductor on the mains and vehicle side.) Once the self-test is complete, the LED lights up white.
2. fault current detection (AC)
Dangerous residual currents can flow to earth in the event of a fault, if the cable is wet or if the insulation to the vehicle body is defective. The Mobility Dock detects these malfunctions and protects the user from life-threatening electrical accidents.
3. fault current detection (DC)
Some vehicles can feed DC residual currents into the grid during charging and thus disturb downstream RCDs. The Mobility Dock detects this malfunction and interrupts the charge.
4. charging monitoring to the vehicle
The Mobility Dock not only communicates charging parameters with the vehicle, it also measures the current drawn by the vehicle. In the event of a fault, charging is interrupted and restarted.
5. permanent monitoring of the protective earth conductor (PE)
The PE conductor is a passive basic protection. The presence of the PE conductor is monitored on the mains and vehicle side. In the event of a fault, charging is not permitted.
6. monitoring the relays
Ageing effects can cause the relays to stick. Stuck relays are detected and charging is not permitted in the event of a fault. The relays are designed for 100,000 cycles.
7. automatic reset
In the event of non-critical faults (e.g. undervoltage, overvoltage, overtemperature, etc.), the Mobility Dock automatically performs a reset and the LED lights up red. If the fault is no longer present, the charging process continues and the LED flashes green.
8. short circuit detection
In the event of a short circuit on the charging cable or vehicle charging electronics, the Mobility Dock switches off safely.
9. tilt detection
The electronics in the Mobility Dock have a tilt sensor. This measures the deviation from the normal state and signals the warning with the yellow LED. This is to avoid the additional load caused by the charging cable plugged into the device. At 180° to the vertical, the device switches off and the LED flashes red.
10. LED status display
The LED status display informs the user about the current status of the device. An overview of the individual statuses can be found in the user manual.
11. permanent overcurrent monitoring
If the vehicle draws more than 110% of the permissible charging current, charging is interrupted for 15 seconds and the Mobility Dock restarts.
12. inrush current detection
The Mobility Dock monitors inrush currents. If the permissible value is exceeded, the charging start is not permitted. In the event of repeated interruptions, the charging cable and vehicle should be checked.
13. detection of overvoltage and undervoltage
The Mobility Dock monitors overvoltage and undervoltage. If the permissible value is exceeded, the charging start is not permitted. The charging cable and vehicle should be checked in the event of repeated interruptions.
14. cable detection (PP contact). Cable current coding
The PP contact provided in the Type 2 plug transmits information about the minimum current that may flow through the charging cable. The Mobility Dock evaluates this information and enables the charging process. This ensures the presence of a current-carrying cable.
Temperature
1. derating behavior: Safe charging processes thanks to automatic regulation of the charging power in the event of overheating
If the temperature at one of the sensors rises, the device goes into derating mode by gradually reducing the current; the current automatically increases again when the temperature normalizes. If the temperature continues to rise despite derating, the Mobility Dock switches off completely. Once the temperature has normalized, the device switches back on fully automatically so that the charging process can continue.
2. temperature monitoring of the mains plug via each pin
In addition to many other safety functions, the Mobility Dock has integrated temperature monitoring with automatic temperature control, thus ensuring a safe charging process at all times. The temperature is continuously measured via each pin of the mains plug. This ensures that the socket does not overheat during the charging process.
3. temperature monitoring electronics
Another temperature sensor is installed on a circuit board inside the Mobility Dock. This continuously measures the temperature inside the housing.
Environment
1. protection class IP44 (charger), IP44 (plug/coupling)
The device is protected against objects with a diameter of one millimeter or more. The second position (4) indicates that the device is protected against splashing water from all directions.
The Mobility Dock is therefore protected against rain on unprotected house walls or in unprotected entrance areas.
2. halogen-free, flame-retardant, oil-resistant
The Ultramid material is highly mechanically resilient and UV-resistant, making it durable even when exposed to sunlight. The plastic is also halogen-free, flame-retardant and highly resistant to chemicals.