公开(公告)号：US20250167696A1

公开(公告)日：2025-05-22

申请号：US19034073

申请日：2025-01-22

Applicant: DENSO CORPORATION

Inventor： Kaoru TAKASHIMA ,  Keisuke TOYAMA ,  Ryoya KAZAOKA ,  Yuta SASAMA ,  Shunichi KUBO

IPC: H02M7/537 ,  B60L53/24 ,  H02J7/00 ,  H02M7/483

Abstract: A power converter includes a high-potential electrical path, a low-potential electrical path, an inverter, a motor, an inter-storage switch, a bypass switch, and a motor-side electrical path. The inverter has an upper-arm switch and a lower-arm switch. The motor has an armature winding electrically connected to a connection point between the upper-arm and the lower-arm switches via a conductive member. The inter-storage switch is located at an inter-storage electrical path that electrically connects a negative terminal of a first power storage unit to a negative terminal of a second power storage unit. The bypass switch establishes at least one of an electrical connection between the negative terminals of the first and second power storage units or the positive terminals of the first and second power storage units. The motor-side electrical path electrically connects the inter-storage electrical path to either the armature winding or the conductive member.

公开(公告)号：US20240347806A1

公开(公告)日：2024-10-17

申请号：US18750115

申请日：2024-06-21

Applicant: DENSO CORPORATION

Inventor： Kaoru TAKASHIMA ,  Ryoya KAZAOKA

IPC: H01M10/637 ,  B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H02P21/22 ,  H02P27/06

CPC classification number: H01M10/637 ,  H01M10/615 ,  H01M10/625 ,  H02P21/22 ,  H02P27/06 ,  B60L58/27 ,  H01M2220/20 ,  H02J2207/20

Abstract: A control device for a power converter applied to a system including a chargeable/dischargeable power storage device, a coil, and the power converter electrically connecting the coil and the power storage device performs: determining whether the storage unit needs to be heated; and repeatedly executing a single cycle control mode in a specified cycle and performing switching control of the power converter to make a current flowing in the coil higher than 0 when determines that the storage device needs to be heated. The single cycle control mode includes a coil charge mode in which the current flowing in the coil is gradually increased and a coil discharge mode in which the current flowing in the coil is gradually decreased, which is executed after the coil charge mode.