US 9,789,776 B2Granted

Charging apparatus and electric vehicle including the same

AssigneeLG Electronics Inc.

InventorsDongcheol Lee, Yohan Park, Junyoung Lim, Murat Senol, Rik De Doncker

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Abstract

A charging apparatus and an electric vehicle including the same are disclosed. The charging apparatus includes a converter for, in a charging mode, converting an input alternating current (AC) voltage into a direct current (DC) voltage and a controller for controlling the converter. The converter includes a motor and a switching unit that is connected to an additional coil wound on a stator of one phase of the motor, and that supplies the input AC voltage to the motor by performing a switching operation. The converter also includes an inverter that, in a motor operation mode, converts a DC voltage from a battery into an AC voltage by a switching operation and drives the motor. In the charging mode, the inverter converts the input AC voltage into the DC voltage using the additional coil of the motor and the switching unit and supplies the DC voltage to the battery.

Claims20

Dependent claims

A charging apparatus comprising:

a converter configured to, in a charging mode, receive an input alternating current (AC) voltage and convert the input AC voltage into an output direct current (DC) voltage;
and
a controller configured to control the converter,
wherein the converter includes:
a motor that includes a stator, a rotor, and coils wound on the stator, the coils corresponding to a plurality of phases of the motor;
an additional coil wound on a portion of the stator that corresponds to a phase of the plurality of phases of the motor;
a switching unit connected to the additional coil and configured to, in the charging mode, selectively supply the input AC voltage or rectified voltage based on the input AC voltage to the motor by performing a switching operation;
and
an inverter configured to, in a motor operation mode, convert a battery DC voltage from a battery into an output AC voltage by performing a switching operation of three-phase switching elements and drive the motor, and, in the charging mode, convert the input AC voltage or the rectified voltage into the output DC voltage using the additional coil of the motor and the switching unit and supply the output DC voltage to the battery.

6 more elements

An electric vehicle comprising:

a battery;
and
a charging apparatus including a converter configured to, in a charging mode, receive an input alternating current (AC) voltage and convert the input AC voltage into an output direct current (DC) voltage and a controller configured to control the converter,
wherein the converter includes:
a motor that includes a stator, a rotor, and coils wound on the stator, the coils corresponding to a plurality of phases of the motor;
an additional coil wound on a portion of the stator that corresponds to a phase of the plurality of phases of the motor;
a switching unit connected to the additional coil and configured to, in the charging mode, selectively supply the input AC voltage or rectified voltage based on the input AC voltage to the motor by performing a switching operation;
and
an inverter configured to, in a motor operation mode, convert a battery DC voltage from a battery into an output AC voltage by performing a switching operation of three-phase switching elements and drive the motor, and, in the charging mode, convert the input AC voltage or the rectified voltage into the output DC voltage using the additional coil of the motor and the switching unit and supply the output DC voltage to the battery.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/149,811Filed 9 May 2016 · continuation
Priority: KR 10-2013-00135166 Feb 2013
Published: US 2016/0250938 A11 Sep 2016
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B60L 53/24
Characterised by converters located in the vehicle: using the vehicle's propulsion converter for charging
B60L 15/007
Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles: physical arrangements or structures of…
B60L 15/025
Characterised by the form of the current used in the control circuit: using field orientation; Vector control; Direct Torque Control [DTC]
B60L 50/15
Using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines: with additional electric power supply

Family

Application14/173,337Parent of this continuation · filed 5 Feb 2014
US 2016/0250938 A1Pre-grant publication · published 1 Sep 2016
US 9,358,893 B2Parent of this continuation
US 2014/0217973 A1Published application
US 9,789,776 B2This patent

From the US filing history. Foreign family members aren’t listed.