公开(公告)号：US20240088694A1

公开(公告)日：2024-03-14

申请号：US18517149

申请日：2023-11-22

Applicant: DENSO CORPORATION

Inventor： Kazuhiro SHIRAKAWA ,  Keiya Tani ,  Shunichi Kubo

IPC: H02J7/00 ,  H02J7/06

CPC classification number: H02J7/00711 ,  H02J7/00714 ,  H02J7/06 ,  H02J2207/20

Abstract: An electrical charging apparatus working to electrically charge an electrical storage device includes an electrical power converter and a controller. The electrical power converter converts an alternating-current input voltage into a direct-current voltage and outputs it to the electrical storage device. The controller works to control the electrical power converter to pulsate the charging current supplied from the electrical power converter to the electrical storage device. The controller also controls the electrical power converter to set a pulsation frequency of the charging current to an integral multiple of the frequency of the input voltage and also to bring a phase difference between a zero-crossing time of the input voltage and a time when the charging current is minimized to be smaller than or equal to one-eighth of one cycle of the input voltage.

公开(公告)号：US12240338B2

公开(公告)日：2025-03-04

申请号：US17994470

申请日：2022-11-28

Applicant: DENSO CORPORATION

Inventor： Masaki Uchiyama ,  Daisuke Kuroda ,  Atsushi Fukaya ,  Keiya Tani

IPC: B60L50/60 ,  H01M10/42 ,  H01M10/46 ,  H01M10/48 ,  H01M50/51 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M7/5387 ,  H02P27/06 ,  H01M10/0525 ,  H02J7/34

Abstract: The present disclosure includes an inverter connected to a power supply unit via a positive electrode side electrical path and a negative electrode side electrical path and including switching elements, a rotary electric machine including windings connected to each other at a neutral point and inputting and outputting power from and to the power supply unit via the inverter, a connection path electrically connecting an intermediate point between the storage batteries of the power supply unit to the neutral point of the windings, and a device including a first terminal and a second terminal enabling energization between the power supply unit and the device. The first terminal is connected to the connection path, and the second terminal is connected to at least one of the positive electrode side electrical path and the negative electrode side electrical path.