公开(公告)号：US20190229663A1

公开(公告)日：2019-07-25

申请号：US16254307

申请日：2019-01-22

Applicant: DENSO CORPORATION

Inventor： Takashi OGAWA ,  Masaki NISHIYAMA ,  Mitsuharu MATSUNO

IPC: H02P21/14 ,  H02P21/24

Abstract: In a MG control device, a standard voltage calculation part calculates a d-axis standard voltage Vd_std and a q-axis standard voltage Vq_std to be supplied to a MG. A first magnetic flux change amount estimation value calculation part calculates a first magnetic flux change amount estimation value Δϕ1 based on a deviation of a specific value from the q axis standard voltage Vq_std, where the specific value is obtained by multiplying a ratio (Vd_std/Vd_real) with a q-axis real voltage Vq_real, where Vd_real represents a d-axis real voltage. A second magnetic flux change amount estimation value calculation part calculates a second magnetic flux change amount estimation value Δϕ2 based on a deviation of the q-axis real voltage Vq_real from the q-axis standard voltage Vq_std. The calculation switching part selects one of Δϕ1 and Δϕ2 based on an operation state of the MG.

公开(公告)号：US20190229661A1

公开(公告)日：2019-07-25

申请号：US16254281

申请日：2019-01-22

Applicant: DENSO CORPORATION

Inventor： Takashi OGAWA ,  Masaki NISHIYAMA ,  Mitsuharu MATSUNO

IPC: H02P21/10

Abstract: In a MG control device, a standard voltage calculation part calculates a d axis standard voltage and a q axis standard voltage in a standard state in which no demagnetization occurs in permanent magnets of a MG. A magnetic flux change amount estimation value calculation part calculates a basic magnetic flux change amount estimation value based on a deviation of a specific value from the q-axis standard voltage. This specific value is obtained by multiplying q axis real voltage with a ratio of the d axis standard voltage and the d axis real voltage. A magnetic flux change amount estimation value correction part adjusts a magnetic flux change amount estimation value by correcting the basic magnetic flux change amount estimation value relatively to a detection threshold value based on characteristic change of the MG in a demagnetization state of the permanent magnets of the MG.

公开(公告)号：US20140118909A1

公开(公告)日：2014-05-01

申请号：US14057494

申请日：2013-10-18

Applicant: DENSO CORPORATION

Inventor： Mitsuharu MATSUNO ,  Hiroshi INAMURA ,  Akira NAKASAKA

IPC: H02G5/00

CPC classification number: H02M7/003

Abstract: A power conversion device comprises a main circuit section that has a semiconductor module with a switching element therein and including a main electrode terminal, a capacitor with a capacitor element therein and that includes a capacitor terminal, and a bus bar that connects the main electrode terminal and the capacitor terminal. The capacitor terminal extends from a capacitor main body including the capacitor element therein towards the main circuit section. The bus bar provides a bending section on a base end side of a connecting section between the bus bar and the capacitor terminal. The bus bar and the capacitor terminal are connected such as to overlap in a state in which respective tip directions match.

Abstract translation: 一种电力转换装置，包括主电路部分，其具有在其中具有开关元件的半导体模块，并且包括主电极端子，其中具有电容器元件的电容器，并且包括电容器端子;以及母线，其将主电极端子 和电容端子。 电容器端子从包括电容器元件的电容器主体向主电路部分延伸。 母线在汇流条和电容器端子之间的连接部的基端侧设置弯曲部。 母线和电容器端子在各个尖端方向一致的状态下连接成重叠。