Stand by and
Wake up
The supply device is woken up by a signal from the EV.
Compatibility
check
Compatibility of the primary and the secondary devices is
checked with the information exchanged at the initialization phase: power
classes, operating frequency, magnetic coupling, circuit topology, tuning.
Initial
Alignment check
The MF-WPT system will determine that the primary and
secondary devices are properly well positioned relative to each other.
Start Power
Transfer
The MF-WPT system is capable to transfer the power from
the primary device to the secondary device upon the request from the vehicle.
The MF-WPT system does not perform power transfer until the command and control
communication is properly established and the primary device and secondary
device are properly positioned.
Time Scheduled
Power Transfer
Perform Power
Transfer
MF-WPT system transfers the power from the primary device
to the secondary device in accordance with the power demand of the EV. The
maximum transferring power of the off-board MF-WPT system must not be exceeded.
The vehicle can change the requested transfer power.
Stop Power
Transfer
MF-WPT system is able to stop transfer the power from the
primary device to the secondary device in accordance with the demand of the EV.
The vehicle can requested stop power transfer.
User initiated
Stop Power Transfer
MF-WPT system allows the user to terminate of power
supply. (e.g. pushing stop button).
Safety
monitoring & diagnostics
continuous
monitoring of power transfer conditions
continuous
monitoring of command & control communication
continuous
monitoring of safety conditions
Power Transfer
Monitoring: The supply device provide means to verify that the actual
output power does not differ from the expected output power by a certain limit;
if the limit is exceeded, it shall stop power transfer.
Thermal Monitoring:WPT systems is capable to detect metallic objects and to stop the power
transfer.
Live Object
Protection: WPT systems provide life object protection by design or may
provide means to detect live objects and to stop power transfer.
Failure Conditions:The supply device stops the transfer in case of of power short-circuit,
earth leakage, excess temperature, insulation failure, overcurrent, overload
conditions.
Ventilation: Verify that the ventilation system of the area is
functioning and active.