公开(公告)号：US11292348B2

公开(公告)日：2022-04-05

申请号：US16428057

申请日：2019-05-31

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Research & Business Foundation Sungkyunkwan University

发明人： Jae Eun Cha ,  Woo Young Lee ,  Gyu Yeong Choe ,  Byoung Kuk Lee ,  Jong Eun Byun ,  Sang Joon Ann ,  Won Jin Son ,  Jae Han Lee

IPC分类号： B60L53/12 ,  B60L53/20 ,  G01R19/165 ,  G01R31/3842 ,  H02J50/12

摘要： A method for performing switching synchronization of a bridgeless rectifier in an electric vehicle (EV) wireless power transfer system may include receiving, by an EV control module, an input voltage of a transmission-side resonance circuit from a transmission-side of the EV wireless power transfer system; calculating, by the EV control module, a phase difference between the received input voltage and a voltage or a current selected in the bridgeless rectifier and a reception-side resonance circuit; and controlling, by an EV control module, switching time points of switches included in the bridgeless rectifier to decrease the calculated phase difference. The reception-side resonance circuit may be electromagnetically coupled to the transmission-side resonance circuit, and the bridgeless rectifier may be configured to rectify an output of the reception-side resonance circuit and to output the rectified output.

公开(公告)号：US11214164B2

公开(公告)日：2022-01-04

申请号：US16426832

申请日：2019-05-30

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Research & Business Foundation Sungkyunkwan University

发明人： Jae Eun Cha ,  Woo Young Lee ,  Gyu Yeong Choe ,  Byoung Kuk Lee ,  Jong Eun Byun ,  Sang Joon Ann ,  Won Jin Son ,  Jae Han Lee

IPC分类号： B60L53/62 ,  H02J7/02 ,  H02J50/12 ,  H02M3/335 ,  H02M7/217 ,  B60L53/12 ,  H02J50/90 ,  B60K6/28

摘要： A method for controlling wireless power transfer to an EV using a bridgeless rectifier may include detecting a phase difference between an input voltage of a transmission-side resonance circuit and an output voltage of a reception-side resonance circuit; after detecting the phase difference, predicting a resonance frequency change direction according to a preconfigured design condition; and controlling switching time points of switches included in the bridgeless rectifier in a direction compensating for the predicted change direction.