公开(公告)号：US10483772B2

公开(公告)日：2019-11-19

申请号：US15801851

申请日：2017-11-02

Applicant: LEAR CORPORATION

Inventor： Steven Cong ,  David A. Hein ,  Ryan Cleveland ,  Eric Salem

IPC: H02J7/00 ,  B60L53/20 ,  B60L53/12 ,  B60L53/66

Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging from both a desired power source and a stray power source. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a low-voltage battery connected to the wireless charger is lost. The wireless charger output protection system and method also shuts down the wireless charger output and dumps unwanted energy in the receive antenna (e.g., a vehicle pad) when power is transferred from a stray power source coupled to the receive antenna.

公开(公告)号：US10333335B2

公开(公告)日：2019-06-25

申请号：US15795825

申请日：2017-10-27

Applicant: LEAR CORPORATION

Inventor： Steven Cong ,  David A. Hein ,  Ryan Cleveland ,  Eric Salem

IPC: H02J7/00 ,  H02J7/02 ,  B60L11/18

Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.

公开(公告)号：US10594157B2

公开(公告)日：2020-03-17

申请号：US16431800

申请日：2019-06-05

Applicant: LEAR CORPORATION

Inventor： Steven Cong ,  David A Hein ,  Ryan Cleveland ,  Eric Salem

IPC: H02J7/02 ,  B60L53/12 ,  H02J50/12

Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.

公开(公告)号：US20190118658A1

公开(公告)日：2019-04-25

申请号：US15793301

申请日：2017-10-25

Applicant: Lear Corporation

Inventor： Steven Cong ,  David A. Hein ,  Ajmal Imran Ansari ,  Eric Salem

IPC: B60L11/18 ,  H02J50/10 ,  H02J7/02 ,  H02J7/00

Abstract: A wireless charging unit for an electric vehicle is provided with a metal enclosure to shield a high-power switching noise environment enclosed within the unit. A wireless power transfer system includes the wireless charging unit on the electric vehicle side that receives power wirelessly from a charging base. In addition to a high-power switching network, the wireless charging unit may include a wireless communication system for wirelessly communicating control messages to the charging base. The metal enclosure may include a cutout region having a plastic cover underneath which an antenna may be mounted to establish wireless communication with the charging base from within the metal enclosure.