WIRELESS POWER TRANSMITTER AND VEHICLE CONTROL UNIT CONNECTED THERETO
The present invention relates to a wireless charging technology and, more particularly, to a wireless power transmitter and a vehicle control unit connected thereto, which can check information on a wireless charging operation using an in-vehicle system when the wireless charging operation is performed within a vehicle. A vehicle control unit according to an embodiment of the present invention may be connected to at least one of a wireless power transmitter and a wireless power receiver which perform a wireless charging operation, and may display a message corresponding to status of charge information generated on the basis of status detection information associated with the wireless charging operation. Therefore, a variety of information associated with a wireless charging operation is output through the vehicle control unit, so that a user can more safely and quickly recognize and cope with various changes in the status of charge, which may occur in a vehicle driving environment.
1 . A vehicle control unit connected to at least one of a wireless power transmitter performing a wireless charging operation or a wireless power receiver,
wherein the vehicle control unit displays a message corresponding to charging state information generated based on state sensing information related to the wireless charging operation.
2 . The vehicle control unit according to claim 1 , wherein the state sensing information comprises total power capacity information, remaining power capacity information and load receive power information about a load of the wireless power receiver,
wherein the charging state information comprises estimated charging completion time information indicating an estimated time at which charging of the wireless power receiver is completed, the estimated charging completion time information being calculated based on the total power capacity information, the remaining power capacity information, and the load receive power information.
3 . The vehicle control unit according to claim 1 , wherein the state sensing information comprises channel setting result information and an impedance change, the channel setting result information being information on whether a feedback signal is received by transmitting a signal for channel setting,
wherein the charging state information comprises foreign matter sensing information indicating corresponding to the channel setting result information indicating that the feedback signal has not been received even though the impedance change has occurred.
4 . The vehicle control unit according to claim 1 , wherein the state sensing information comprises transmit power information about the wireless power transmitter and current receive power information about the wireless power receiver,
wherein the charging state information comprises array correction information, the array correction information being generated when a ratio of the current receive power information to the transmit power information is out of a normal range.
5 . The vehicle control unit according to claim 1 , wherein the state sensing information comprises temperature information about the wireless power transmitter,
wherein the charging state information comprises abnormal temperature information, the abnormal temperature information being generated when a temperature of the wireless power receiver according to the temperature information is out of a normal temperature range.
6 . The vehicle control unit according to claim 5 , wherein, when the abnormal temperature information is received, the vehicle control unit activates a cooling unit configured to reduce the temperature of the wireless power receiver according to the abnormal temperature information,
wherein, when the temperature of the wireless power receiver returns to the normal temperature range, the vehicle control unit stops operation of the cooling unit.
7 . The vehicle control unit according to claim 1 , wherein the state sensing information comprises charging start information generated when connection between the wireless power transmitter and the wireless power receiver is established,
wherein the charging state information comprises charging connection information generated based on the charging start information and receiver identification information about the wireless power receiver.
8 . The vehicle control unit according to claim 1 , wherein the charging state information is generated by the wireless power transmitter based on the state sensing information provided by wireless power receiver and received from the wireless power transmitter,
generated by the vehicle control unit based on the state sensing information received from the wireless power receiver, or
generated by and received from the wireless power receiver.
9 . The vehicle control unit according to claim 1 , wherein the vehicle control unit is connected with the wireless power receiver in a short-range communication scheme.
10 . A vehicle control unit connected to at least one of a wireless power transmitter performing a wireless charging operation or a plurality of wireless power receivers,
wherein the vehicle control unit displays a message corresponding to charging state information generated based on state sensing information related to the wireless charging operation.
11 . The vehicle control unit according to claim 10 , wherein the state sensing information comprises total power capacity information, remaining power capacity information and load receive power information about loads of the wireless power receivers,
wherein the charging state information comprises estimated charging completion time information indicating an estimated time at which charging of the wireless power receivers is completed, the estimated charging completion time information being calculated based on the total power capacity information, the remaining power capacity information, and the load receive power information.
12 . The vehicle control unit according to claim 10 , wherein the state sensing information comprises channel setting result information and an impedance change, the channel setting result information being information on whether a feedback signal is received by transmitting a signal for channel setting,
wherein the charging state information comprises foreign matter sensing information indicating corresponding to the channel setting result information indicating that the feedback signal has not been received even though the impedance change has occurred.
13 . The vehicle control unit according to claim 10 , wherein the state sensing information comprises transmit power information about the wireless power transmitter and current receive power information about the wireless power receivers,
wherein the charging state information comprises array correction information, the array correction information being generated when a ratio of the current receive power information to the transmit power information is out of a normal range.
14 . The vehicle control unit according to claim 10 , wherein the state sensing information comprises temperature information about the wireless power transmitter,
wherein the charging state information comprises abnormal temperature information, the abnormal temperature information being generated when a temperature of the wireless power receivers according to the temperature information is out of a normal temperature range.
15 . The vehicle control unit according to claim 14 , wherein, when the abnormal temperature information is received, the vehicle control unit activates a cooling unit configured to reduce the temperature of the wireless power receivers according to the abnormal temperature information,
wherein, when the temperature of the wireless power receivers returns to the normal temperature range, the vehicle control unit stops operation of the cooling unit.
16 . The vehicle control unit according to claim 10 , wherein the state sensing information comprises charging start information generated when connection between the wireless power transmitter and the wireless power receivers is established,
wherein the charging state information comprises charging connection information generated based on the charging start information and receiver identification information about the wireless power receivers.
17 . The vehicle control unit according to claim 10 , wherein the charging state information is generated by the wireless power transmitter based on the state sensing information provided by wireless power receivers and received from the wireless power transmitter,
generated by the vehicle control unit based on the state sensing information received from the wireless power receivers, or
generated by and received from the wireless power receivers.
18 . The vehicle control unit according to claim 10 , wherein the vehicle control unit displays an estimated charging completion time and a charging power share of each of the plurality of wireless power receivers in a priority order,
wherein the vehicle control unit requests that the charging power share be changed so as to correspond to a priority changed as the priority order is changed, or requests that the priority order be changed so as to correspond to a charging power share changed as the charging power share is changed.
19 . The vehicle control unit according to claim 10 , wherein the vehicle control unit is connected with the wireless power receivers in a short-range communication scheme.
20 . A wireless power transmitter configured to:
generate charging state information based on state sensing information related to a wireless charge operation performed on a wireless power receiver; and
transmit the charging state information to a vehicle control unit such that a message corresponding to the charging state information is displayed.