Power converter for integrated control of electric oil pumps

Patent metadata

Field	Value
Publication number	US-12355314-B2
Application number	US-202118251008-A
Country	US
Kind code	B2
Filing date	Nov 11, 2021
Priority date	Dec 4, 2020
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

Disclosed herein is a power converter for integrated control of electric oil pumps, which includes a power conversion module configured to receive a direct current voltage to convert the same into an alternating current voltage and to output the converted alternating current voltage to a drive motor, and a control unit configured to control the power conversion module and to control actuation of an oil pump for generating hydraulic pressure in a transmission. The control unit includes a control board, a main controller installed in a partial region of the control board to supply power to the drive motor and to control the power conversion module, and an oil pump controller installed in a remaining region other than the partial region, connected to the main controller, and configured to supply power to a pump motor for actuating the oil pump and to control the oil pump.

First claim

What is claimed is:

1. A power converter for integrated control of electric oil pumps, comprising:
a power conversion module configured to receive direct current (DC) power to convert the DC power into alternating current (AC) power and to output the converted AC power to a drive motor; and
a control unit configured to control the power conversion module and to control actuation of an oil pump for generating hydraulic pressure in a transmission, wherein the control unit comprises:
a control board;
a main controller installed in a partial region of the control board to supply power to the drive motor and to control the power conversion module; and
an oil pump controller installed in a remaining region other than the partial region, connected to the main controller, and configured to supply power to a pump motor for actuating the oil pump and to control the oil pump.

2. The power converter according to claim 1 , wherein the oil pump controller comprises:
an input bus bar electrically connected to the main controller and installed on the control board to receive DC power from a power source; and
an output connector installed on the control board to output AC power to the pump motor, and
wherein, when in the control board, the region where the main controller is installed is referred to as a first region and the region where the oil pump controller is installed is referred to as a second region, the input bus bar and the output connector are installed in the second region.

3. The power converter according to claim 2 , wherein the second region is a region comprising at least a portion of an edge of the control board.

4. The power converter according to claim 2 , wherein the control unit further comprises an insulator formed between the first region and the second region of the control board to form a separation distance between the main controller and the oil pump controller.

5. The power converter according to claim 4 , wherein the insulator comprises a plurality of insulation holes formed between the main controller and the oil pump controller and elongated along a boundary between the first region and the second region.

6. The power converter according to claim 4 , wherein the insulator comprises an insulation barrier protruding between the main controller and the oil pump controller and having a predetermined thickness.

Assignees

• Hyundai Transys Inc

Inventors

• Jeong Hee Cheon
• Kwon Oh Joong
• Kim Dae Kyun
• Jung Chang Kyo
• Kim Yeon Ho

Classifications

• H02K11/30

  Structural association with control circuits or drive circuits · CPC title

• H02M7/003

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H02K7/14

  Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06) · CPC title

• G05D7/0617

  specially adapted for fluid materials · CPC title

• H02K11/33 Primary

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title