Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Seoul National University

Kang Ho Jeong

Sang Cheol Shin

Ji Woong Jang

Young Seul Lim

Jong Kyong Lim

Myung Ho Kim

Beom Sik Kim

Ki Jong Lee

Suk Hyun Lim

Jung Ik Ha

Yong Jae Lee

Bum Sik Kim

Gun Soo Kang

Jae Hoon Shim

Jae Hoon Sim

Hyeon Gyu Choi

Hyun Koo Lee

Ki Young Jang

Jun Hee Park

Heon Young Kwak

Young Kook Lee

Tae Hwan Chung

Hun Kong

Han Geun Jang

Jee Hye Jeong

A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.

Motor-driving apparatus

A battery charging system includes a first inverter including first switching elements and DC and AC terminals connected to the battery and a first end of the windings of a motor, respectively; a second inverter including second switching elements and DC and AC terminals connected to the battery and a second end of the windings, respectively; third switching elements each having a first end connected to the second end of the windings and a second end connected to each other; a charging capacitor provided between the second end of the third switching elements and a negative terminal of the battery, and to which a DC charging voltage is applied for charging the battery; a fourth switching element connected in series with the charging capacitor between the second end of the third switching elements and the negative terminal; and a controller configured to control the first to fourth switching elements.

Vehicle battery charging system using motor driving system

A motor driving apparatus of driving a motor including a plurality of windings respectively corresponding to a plurality of phases is disclosed. The motor driving apparatus include a first inverter including a plurality of first switching elements and connected to a first end of each of the windings, a second inverter including a plurality of second switching elements and connected to a second end of each of the windings, and a controller configured for controlling ON/OFF states of the first switching elements and the second switching elements based on a required output of the motor, wherein the first inverter may be connected to a first voltage source, the second inverter may be connected to a second voltage source, and the first voltage source and the second voltage source may have different grounds.

Motor driving apparatus

A system for charging a battery for a vehicle using a motor driving system that operates a motor having a plurality of windings is disclose. The system includes a first inverter having a plurality of first switching elements, a DC terminal connected to the battery, and an AC terminal connected to one terminal of the plurality of windings, a second inverter having a plurality of second switching elements, a DC terminal selectively short-circuited/opened with the DC terminal of the first inverter, and an AC terminal connected to the other terminal of the plurality of windings, and a controller configured to control an electric connection state between the DC terminals of the first inverter and the second inverter and an open/short-circuited state of the first switching elements and the second switching elements.

System for charging battery for vehicle using motor driving system

A motor driving apparatus includes: a first inverter including: a plurality of first switching elements and connected to a first end of each of the windings; a second inverter including: a plurality of second switching elements and connected to a second end of each of the windings; and a controller configured to control a switching state of the plurality of first switching elements and the plurality of second switching elements based on a driving mode of the motor in one sampling period.

An inverter driving apparatus includes an inverter including a plurality of legs corresponding to a plurality of phases respectively, a gate driver outputting a pulse width modulation control signal for switching the transistor provided in the leg, a variable resistor circuit connected to a gate end of the transistor, and a switching speed control circuit determining a switching state of the transistor based on the pulse width modulation control signal, adjusting a resistance value of the variable resistor circuit according to the temperature of the transistor based on the determination result, and controlling the switching speed of the transistor.

Inverter driving apparatus and method of controlling the same

A motor driving apparatus which drives a motor including a plurality of winding portions corresponding to a plurality of phases, respectively, includes a motor including a plurality of winding portions corresponding to a plurality of phases, respectively, a first inverter including a plurality of first switching elements and electrically connected to a first end of each of the winding portions, a second inverter including a plurality of second switching elements and electrically connected to a second end of each of the winding portions, a plurality of third switching elements including first ends electrically connected to the second ends of the plurality of winding portions, respectively, and second ends electrically connected to each other, and a controller.

An electrified vehicle having a first inverter having a DC terminal and a plurality of legs respectively connected to one end of each of a plurality of coils of a motor, a second inverter connected to the DC terminal, and including a plurality of legs connected to the other ends of the plurality of coils, respectively, a plurality of transfer switches respectively having one end connected to a neutral terminal for the plurality of coils and the other end connected to the other end of each coil, an overvoltage protection circuit including a clamping switch, a resistor, and a capacitor, and connected to the neutral terminal and the DC terminal, and a controller controlling a turned-on state of the plurality of transfer switches according to the motor driving mode. When the motor is driven, the controller controls a turned-on state of the clamping switch.

Electrified vehicle and method of controlling same

An apparatus configured for driving a motor, includes a first inverter including a first switching elements and connected to a first end of each of a windings respectively corresponding to a plurality of phases of the motor, a second inverter including a second switching elements and connected to a second end of each of the windings, a switches including first ends respectively connected to nodes to which the windings and the second switching elements are respectively connected and second ends connected to each other, and a controller configured to drive the motor in one of a first driving mode for driving the motor by maintaining the second switching elements in an open state and performing pulse width modulation control for the first switching elements and a second driving mode for driving the motor by performing pulse width modulation control for the first switching elements and the second switching elements.

Apparatus and method for driving motor

A motor drive device includes: a first inverter including a plurality of first switching elements and connected to a plurality of coils; a second inverter including a plurality of second switching elements and connected to the plurality of coils; a plurality of transfer switching elements connected to the second ends; a capacitor disposed at one side of a casing of a motor; first and second cooling channels disposed at both sides of the capacitor; a plurality of first power modules including some of the plurality of first switching elements and some of the transfer switching elements; and a plurality of second power modules including some of the plurality of second switching elements.

Motor drive device

A motor driving apparatus which drives a motor including a plurality of windings corresponding to a plurality of phases, respectively, includes: a first inverter including a plurality of first switching elements and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements and connected to a second end of each of the windings; and a controller obtaining a vector corresponding to a voltage command of the motor by combining switching vectors which cause difference between a common mode voltage of the first inverter and a common mode voltage of the second inverter to be zero and configured to control the plurality of first switching elements and the plurality of second switching elements in a pulse width modulation method based on the obtained vector.

Single motor with dual inverters using voltage vector

A motor driving device drives a motor having a plurality of windings corresponding to a plurality of phases. The motor driving device includes: a first inverter configured to include a plurality of first switching elements and connected to first stages of the plurality of windings; a second inverter configured to include a plurality of second switching elements and connected to second stages of the plurality of windings; and a controller configured to fix switching states of the second switching elements and switch the first switching elements to compose target voltage vectors if the motor is driven in an open end winding type by operating the first inverter and the second inverter in a space vector pulse width modulation mode.

Growing community of inventors

Gyeonggi-do, South Korea

Kang Ho Jeong