Electric vehicle wireless charging with monitoring of duration of charging operational mode
First Claim
1. A method of transferring wireless power to an electric vehicle, the method comprising:
- initiating a charging cycle of a wireless power transfer system, the charging cycle comprising a plurality of operational states comprising;
at least one initialization state during which a wireless power link sufficient for transferring the wireless power is established between the wireless power transfer system and the electric vehicle, the at least one initialization state defining a first period of time during which a first amount of power is transferred; and
at least one charging state during which wireless transfer of a second amount of power from the wireless power transfer system to the electric vehicle sufficient for charging is performed, the at least one initialization state comprising at least one alignment state during which alignment for the at least one charging state is performed, wherein, during the at least one alignment state, the first amount of the power is transmitted to the vehicle at a power level sufficient for the alignment;
starting the at least one charging state;
generating a first timestamp indicating a start time of the wireless power transfer upon starting the at least one charging state;
ending the at least one charging state;
generating a second timestamp indicating an end time of the wireless power transfer upon ending the at least one charging state; and
generating a cost of the wireless power transferred to the vehicle based on excluding the first amount of the power transmitted to the vehicle during the first period.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems, methods, and apparatus are disclosed for electric vehicle wireless charging. In one aspect, a method of transferring wireless power to an electric vehicle is provided, including initiating a charging cycle comprising at least one initialization state during which a wireless power link sufficient for charging is established between the wireless power transfer system and the electric vehicle and at least one charging state during which wireless power transfer from the wireless power transfer system to the electric vehicle is performed. The method further includes generating a first timestamp indicating a start time of the wireless power transfer in response to entering the at least one charging state and generating a second timestamp indicating an end time of the wireless power transfer.
25 Citations
31 Claims
-
1. A method of transferring wireless power to an electric vehicle, the method comprising:
-
initiating a charging cycle of a wireless power transfer system, the charging cycle comprising a plurality of operational states comprising; at least one initialization state during which a wireless power link sufficient for transferring the wireless power is established between the wireless power transfer system and the electric vehicle, the at least one initialization state defining a first period of time during which a first amount of power is transferred; and at least one charging state during which wireless transfer of a second amount of power from the wireless power transfer system to the electric vehicle sufficient for charging is performed, the at least one initialization state comprising at least one alignment state during which alignment for the at least one charging state is performed, wherein, during the at least one alignment state, the first amount of the power is transmitted to the vehicle at a power level sufficient for the alignment; starting the at least one charging state; generating a first timestamp indicating a start time of the wireless power transfer upon starting the at least one charging state; ending the at least one charging state; generating a second timestamp indicating an end time of the wireless power transfer upon ending the at least one charging state; and generating a cost of the wireless power transferred to the vehicle based on excluding the first amount of the power transmitted to the vehicle during the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A wireless power apparatus for charging an electric vehicle comprising a vehicle pad having at least one electric vehicle induction coil, the apparatus comprising:
-
a base pad having at least one base system induction coil; and a processor configured to; control a charging cycle of the apparatus, the charging cycle comprising at least one initialization state during which a wireless power link sufficient for transferring the wireless power is established between the wireless power apparatus and the electric vehicle, the at least one initialization state defining a first period of time during which a first amount of the power is transferred, and at least one charging state during which wireless transfer of a second amount of power from the wireless power apparatus to the electric vehicle sufficient for charging is performed, the at least one initialization state comprising at least one alignment state during which alignment for the at least one charging state is performed, wherein, during the at least one alignment state, the first amount of the power is transmitted to the vehicle at a power level sufficient for the alignment; start the at least one charging state; generate a first timestamp indicating a start time of the wireless power transfer upon starting the at least one charging state; end the at least one charging state; generate a second timestamp indicating an end time of the wireless power transfer upon ending the at least one charging state; and generate a cost of the wireless power transferred to the vehicle based on excluding the first amount of the power transmitted to the vehicle during the first period. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A wireless power apparatus for charging an electric vehicle comprising a vehicle pad having at least one electric vehicle induction coil, the apparatus comprising:
-
means for wirelessly transferring power from the apparatus to the vehicle pad; means for controlling a charging cycle of the apparatus, the charging cycle comprising at least one initialization state during which a wireless power link sufficient for transferring the wireless power is established between the wireless power apparatus and the electric vehicle, the at least one initialization state defining a first period of time during which a first amount of the power is transferred, and at least one charging state during which wireless transfer of a second amount of power from the wireless power apparatus to the electric vehicle sufficient for charging is performed, the at least one initialization state comprising at least one alignment state during which alignment for the at least one charging state is performed, wherein, during the at least one alignment state, the first amount of the power is transmitted to the vehicle at a power level sufficient for the alignment; means for starting the at least one charging state; means for generating a first timestamp indicating a start time of the wireless power transfer upon starting the at least one charging state; means for ending the at least one charging state; means for generating a second timestamp indicating an end time of the wireless power transfer upon ending the at least one charging state; and means for generating a cost of the wireless power transferred to the vehicle based on excluding the first amount of the power transmitted to the vehicle during the first period. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
-
29. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause a wireless power transfer system for charging an electric vehicle to:
-
initiate a charging cycle comprising a plurality of operational states comprising; at least one initialization state during which a wireless power link sufficient for transferring the wireless power is established between the wireless power transfer system and the electric vehicle, the at least one initialization state defining a first period of time during which a first amount of the power is transferred; and at least one charging state during which wireless power transfer of a second amount of power from the wireless power transfer system to the electric vehicle sufficient for charging is performed, the at least one initialization state comprising at least one alignment state during which alignment for the at least one charging state is performed, wherein, during the at least one alignment state, the first amount of the power is transmitted to the electric vehicle at a power level sufficient for the alignment; start the at least one charging state; generate a first timestamp indicating a start time of the wireless power transfer upon starting the at least one charging state; end the at least one charging state; generate a second timestamp indicating an end time of the wireless power transfer upon ending the at least one charging state; and generate a cost of the wireless power transferred to the vehicle based on excluding the first amount of the power transmitted to the vehicle during the first period. - View Dependent Claims (30, 31)
-
Specification