KR20180046538A - Battary charging apparatus and method for controlling terminate time of charging based on state of charge - Google Patents

Battary charging apparatus and method for controlling terminate time of charging based on state of charge Download PDF

Info

Publication number
KR20180046538A
KR20180046538A KR1020160141776A KR20160141776A KR20180046538A KR 20180046538 A KR20180046538 A KR 20180046538A KR 1020160141776 A KR1020160141776 A KR 1020160141776A KR 20160141776 A KR20160141776 A KR 20160141776A KR 20180046538 A KR20180046538 A KR 20180046538A
Authority
KR
South Korea
Prior art keywords
battery
charging
electric vehicle
charge
target condition
Prior art date
Application number
KR1020160141776A
Other languages
Korean (ko)
Inventor
고홍기
김규동
Original Assignee
르노삼성자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 르노삼성자동차 주식회사 filed Critical 르노삼성자동차 주식회사
Priority to KR1020160141776A priority Critical patent/KR20180046538A/en
Priority to PCT/KR2017/012011 priority patent/WO2018080237A2/en
Publication of KR20180046538A publication Critical patent/KR20180046538A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L11/1861—
    • B60L11/1816—
    • B60L11/182—
    • B60L11/1829—
    • B60L11/1862—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • B60L2230/30—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y02T10/7005—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The present invention relates to an electric vehicle for adjusting a charging termination time based on a state of charge (SOC) of a battery. According to a favorable embodiment of the present invention, a battery charging control apparatus of the electric vehicle comprises: a target setting unit for setting a target condition for terminating charging before a battery of the electric vehicle is completely charged; a monitoring unit for comparing the target condition with an SOC of the battery; and a control unit for terminating battery charging by stopping a charging operation of a charging module when the SOC matches the target condition.

Description

배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어장치 및 방법 {BATTARY CHARGING APPARATUS AND METHOD FOR CONTROLLING TERMINATE TIME OF CHARGING BASED ON STATE OF CHARGE}TECHNICAL FIELD [0001] The present invention relates to a battery charging control apparatus and method for an electric vehicle that adjusts a charging end timing according to a battery charging state,

본 발명은 전기자동차의 충전기술에 관한 것이다.The present invention relates to a charging technique for an electric vehicle.

전기자동차는 배터리에 저장된 전기에너지를 이용하여 주행하는 자동차이다. 그러므로 배터리에 저장된 에너지가 고갈되면 배터리를 다시 충전해야만 한다. 따라서 배터리를 충전하는 기술은 전기자동차를 운용하는데 있어 매우 중요한 기술이다. 전기자동차의 배터리를 충전하는 기술로는 유선충전과 무선충전이 있다. 유선충전기술은 충전장치의 충전케이블을 직접 전기자동차에 연결한 후 배터리를 충전하는 방법이고, 무선충전기술은 직접적인 케이블 연결없이 전기에너지를 전달하는 방법이다. 예를 들어 대한민국 특허등록공보 제10-1132770호는 유선충전기술과 그에 대한 과금에 대해 개시한다.An electric vehicle is an automobile that travels using electric energy stored in a battery. Therefore, if the energy stored in the battery is exhausted, the battery must be recharged. Therefore, the technique of charging the battery is a very important technology for operating the electric vehicle. Wired charging and wireless charging are the technologies that charge electric cars' batteries. Wired charging technology is a method of connecting a charging cable of a charging device directly to an electric vehicle and then charging the battery. Wireless charging technology is a method of transferring electric energy without direct cable connection. For example, Korean Patent Registration No. 10-1132770 discloses wired charging technology and charging thereof.

그런데 유선충전이든 무선충전이든 전기자동차의 배터리를 충전하는데 상당한 시간이 소요되므로 운전자에게 불편함을 주는 문제가 있다. 종래 내연기관의 경우 주유소에서 연료를 주유하는 데는 많은 시간이 소요되지 않던 것과 비교하면 그 불편함은 이루 말할 수 없다.However, since it takes a considerable amount of time to charge the battery of the electric vehicle, whether it is a wire charging or a wireless charging, there is a problem that it is inconvenient to the driver. In the case of conventional internal combustion engines, the inconvenience can not be said in comparison with the case where the fuel is not consumed in the gas station for a long time.

본 발명의 발명가는 이러한 문제점들을 해결할 수 있는 기술을 완성하기 위하여 오랫동안 연구 노력한 끝에 본 발명을 완성하기에 이르렀다.The inventor of the present invention has accomplished the present invention after a long research effort in order to complete the technology capable of solving these problems.

일반적인 배터리는 완전히 충전되어야만 충전이 종료된다. 그러나, 배터리의 단위시간당 충전량은 일정하지 않다. 배터리가 어느 정도 충전된 이후에는 단위시간당 충전량이 점진적으로 감소하기 때문이다. 예를 들어 배터리를 30%에서 40%충전하는데 소요되는 시간보다 85%에서 95%충전하는데 소요되는 시간이 훨씬 길다. 발명자는 바로 이와 같은 배터리의 충전특성에서 본 발명을 착안했다. 즉, 배터리의 충전상태를 모니터링하여 일정 수준 이상 배터리가 충전되면 배터리가 완충되지 않았더라도 배터리 충전을 종료시켜 운전자의 충전대기시간을 감소시키는 것이다.A typical battery will not charge until it is fully charged. However, the charged amount per unit time of the battery is not constant. This is because the charge per unit time gradually decreases after the battery is charged to some extent. For example, it takes much longer to charge from 85% to 95% than the time required to charge the battery from 30% to 40%. The inventor has focused on the present invention in such a charging characteristic of the battery. That is, if the battery is charged to a certain level or more by monitoring the charged state of the battery, the battery charging is terminated even if the battery is not fully charged, thereby reducing the charging wait time of the driver.

위와 같은 과제해결 원리에 따른 본 발명은 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어장치 및 방법, 이를 이용한 전기자동차를 제공한다.According to the present invention, there is provided an apparatus and method for controlling a charge of a battery in an electric vehicle, which controls a charge termination time according to a charged state of the battery, and an electric vehicle using the apparatus.

한편, 본 발명의 명시되지 않은 또 다른 목적들은 하기의 상세한 설명 및 그 효과로부터 용이하게 추론할 수 있는 범위 내에서 추가적으로 고려될 것이다.On the other hand, other unspecified purposes of the present invention will be further considered within the scope of the following detailed description and easily deduced from the effects thereof.

위와 같은 목적을 달성하기 위해 본 발명의 제1국면은 전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키는 목표조건을 설정하는 목표설정부;In order to accomplish the above object, a first aspect of the present invention is a battery charger comprising: a target setting unit for setting a target condition for terminating charging of a battery of an electric vehicle before the battery is fully charged;

상기 목표조건과 배터리의 충전상태(State Of Charge: SOC)를 비교하는 모니터링부; 및A monitoring unit for comparing the target condition with a state of charge (SOC) of the battery; And

상기 충전상태가 상기 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료시키는 제어부를 포함하는 것을 특징으로 하는 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어장치를 제공한다.And a control unit for stopping the charging operation of the charging module to terminate the charging of the battery if the charging state matches the target condition. to provide.

본 발명의 제2국면은 (a) 전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키는 목표조건을 설정하는 단계;A second aspect of the present invention is a method for controlling an electric vehicle comprising the steps of: (a) setting a target condition for terminating charging of the electric vehicle before the battery is fully charged;

(b) 상기 목표조건과 배터리의 충전상태(State Of Charge: SOC)를 비교하는 단계; 및(b) comparing the target condition with a state of charge (SOC) of the battery; And

(c) 상기 충전상태가 상기 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료하는 단계를 포함하는 것을 특징으로 하는 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어방법을 제공한다.(c) stopping the charging operation of the charging module to terminate the charging of the battery if the charging condition matches the target condition, and terminating the charging of the battery Control method.

바람직한 실시예에 있어서 본 발명은 상기 (a) 단계는 정전류모드(Constant Current: CC)에서 소정의 배터리 전압을 목표조건으로 설정하는 단계이고,In a preferred embodiment of the present invention, the step (a) is a step of setting a predetermined battery voltage as a target condition in a constant current (CC)

상기 (c) 단계는 배터리의 전압이 목표조건에 설정된 배터리 전압과 일치하면, 정전압모드(Constant Voltage: CV)를 포함하는 충전모드로 충전방식을 전환하지 않고 충전을 종료하는 것이 좋다. In the step (c), if the voltage of the battery coincides with the battery voltage set to the target condition, it is preferable that the charging is ended without switching the charging mode to the charging mode including the constant voltage (CV).

본 발명의 제3국면은 전기자동차에 전력을 공급하는 배터리;A third aspect of the present invention provides a battery for supplying electric power to an electric vehicle;

상기 배터리를 충전하기 위한 충전모듈; 및A charging module for charging the battery; And

제1항의 배터리충전제어장치를 포함하는 것을 특징으로 하는 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차를 제공한다.The electric vehicle according to claim 1, further comprising a battery charge control device.

본 발명의 제4국면은 전기자동차에 전력을 공급하는 유선 또는 무선 충전모듈; 및A fourth aspect of the present invention is directed to a wired or wireless charging module for powering an electric vehicle; And

제1항의 배터리충전제어장치를 포함하는 것을 특징으로 하는 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전장치를 제공한다.A battery charging device for an electric vehicle, comprising: a battery charging control device according to claim 1;

위와 같은 본 발명에 따르면, 본 발명은 배터리가 완전충전되지 않아도 배터리 충전을 종료한다. 이로서 운전자의 충전대기시간이 획기적으로 감소된다. 예를 들어, 충전대기시간을 절반으로 감소시킬 수도 있다. 중요한 것은 충전대기시간이 절반으로 감소된다고 해서 배터리의 충전량까지 절반으로 감소한 것은 아니라는 점에 있다. 이를 이해하기 위해서는 상세한 설명을 참고해야한다. 배터리 충전 메커니즘을 알아야하기 때문이다.According to the present invention as described above, the present invention ends the battery charging even when the battery is not fully charged. This dramatically reduces the waiting time for the driver to charge. For example, the charge wait time may be reduced by half. The important thing is that half of the charge wait time does not reduce the battery charge by half. To understand this, you should refer to the detailed description. This is because you need to know the battery charging mechanism.

한편, 여기에서 명시적으로 언급되지 않은 효과라 하더라도, 본 발명의 기술적 특징에 의해 기대되는 이하의 명세서에서 기재된 효과 및 그 잠정적인 효과는 본 발명의 명세서에 기재된 것과 같이 취급됨을 첨언한다.On the other hand, even if the effects are not explicitly mentioned here, the effect described in the following specification, which is expected by the technical features of the present invention, and its potential effects are treated as described in the specification of the present invention.

도 1은 전기자동차와 충전장치의 사용상태도를 나타내는 도면이다.
도 2는 본 발명에 따른 전기자동차의 배터리충전제어장치의 바람직한 실시예를 나타내는 도면이다.
도 3은 본 발명에 따른 전기자동차의 배터리충전제어방법의 바람직한 실시예를 나타내는 도면이다.
도 4는 본 발명에 따른 배터리충전제어방법의 동작을 예시하기 위한 그래프이다.
첨부된 도면은 본 발명의 기술사상에 대한 이해를 위하여 참조로서 예시된 것임을 밝히며, 그것에 의해 본 발명의 권리범위가 제한되지는 아니한다.1 is a view showing a state of use of an electric vehicle and a charging device.
2 is a diagram showing a preferred embodiment of a battery charge control apparatus for an electric vehicle according to the present invention.
3 is a diagram showing a preferred embodiment of a method for controlling charging of a battery of an electric vehicle according to the present invention.
4 is a graph illustrating the operation of the battery charge control method according to the present invention.
It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

이하, 첨부된 도면을 참조하여 본 발명의 실시를 위한 구체적인 내용을 설명한다. 그리고 본 발명을 설명함에 있어서 관련된 공지기능에 대하여 이 분야의 기술자에게 자명한 사항으로서 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

도 1은 전기자동차와 충전장치의 사용상태도를 나타내는 도면이다.1 is a view showing a state of use of an electric vehicle and a charging device.

본 발명의 배터리충전제어장치는 전기자동차(11, 12, 13)와 전기자동차 충전장치(200) 중 적어도 어느 하나에 설치되어 배터리충전을 제어한다. 예를 들어, 전기자동차(11, 12, 13)는 전기자동차에 전력을 공급하는 배터리, 배터리를 충전하기 위한 충전모듈, 및 배터리충전제어장치를 포함할 수 있다. 또한, 전기자동차 충전장치(200)는 전기자동차를 유선으로 충전하는 유선충전부(210), 전기자동차를 무선으로 충전하는 적어도 하나 이상의 무선충전부(220), 및 배터리충전제어장치(230)를 포함할 수 있다.The battery charging control apparatus of the present invention is installed in at least one of the electric vehicles (11, 12, 13) and the electric vehicle charging apparatus (200) to control charging of the battery. For example, the electric vehicle 11, 12, 13 may include a battery for supplying electric power to the electric vehicle, a charging module for charging the battery, and a battery charge control device. The electric vehicle charging apparatus 200 includes a wire charging unit 210 for charging an electric vehicle with wire, at least one or more wireless charging units 220 for charging the electric vehicle wirelessly, and a battery charging control unit 230 .

도 2는 본 발명에 따른 전기자동차의 배터리충전제어장치의 바람직한 실시예를 나타내는 도면이다.2 is a diagram showing a preferred embodiment of a battery charge control apparatus for an electric vehicle according to the present invention.

본 발명의 배터리충전제어장치(100)는 목표설정부(110), 모니터링부(120), 충전모듈(130), 배터리(140), 및 제어부(150)를 포함한다.The battery charging control apparatus 100 of the present invention includes a target setting unit 110, a monitoring unit 120, a charging module 130, a battery 140, and a control unit 150.

목표설정부(110)는 전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키는 목표조건을 설정한다. 이를 위해 운전자에게 소정의 인터페이스를 제공할 수 있다. 일반적으로 배터리의 충전은 배터리가 완전히 충전되어야만 종료된다. 그러나, 본 발명의 목표조건은 배터리가 완충되기 전에 충전을 종료시키는 소정의 조건을 의미한다. The target setting unit 110 sets a target condition for terminating the charging of the electric vehicle before the battery is fully charged. For this purpose, a predetermined interface can be provided to the driver. Generally, charging of the battery is terminated only when the battery is fully charged. However, the target condition of the present invention means a predetermined condition for terminating the charging before the battery is fully charged.

모니터링부(120)는 목표설정부(110)로부터 목표조건을 입력받고, 배터리로부터 배터리의 충전상태(State Of Charge: SOC)를 입력받는다. 모니터링부(120)는 목표조건과 충전상태를 소정 주기로 모니터링한다. 모니터링부(120)는 모니터링한 결과를 제어부(150)에 전달한다.The monitoring unit 120 receives a target condition from the target setting unit 110 and receives a state of charge (SOC) of the battery from the battery. The monitoring unit 120 monitors the target condition and the charging state at a predetermined cycle. The monitoring unit 120 transmits the monitoring result to the controller 150. [

충전모듈(130)은 충전모듈(130)은 유선충전모듈과 무선충전모듈을 포함할 수 있다. 유선충전모듈은 외부 유선충전장치로부터 유선으로 전력을 수신한다. 유선충전모듈은 유선충전케이블을 통해 직접 전기에너지를 공급받으며 그 형식에는 특별한 제한이 없다. 예를 들어, 교류 삼상 380V를 이용하는 급속충전방식이나 교류 단상 220V를 이용하는 완송충전방식을 포함하여 새롭게 정의되는 유선충전표준을 모두 포함할 수 있다. 무선충전모듈은 외부 무선충전장치로부터 무선으로 전력을 수신한다. 무선충전모듈이 무선으로 전력을 수신하기 위해 사용하는 방식에는 특별한 제한이 없다. 예를 들어, 근거리 무선전송방법으로 자기유도방식과 자기공명방식, 원거리 무선전송방법으로 마이크로파방식 및 레이져방식 등이 본 발명의 무선충전모듈에 적용될 수 있다.The charging module 130 may include a charging module 130 and a wireless charging module. The wired charging module receives electric power from the external wired charging device by wire. The wired charging module receives direct electric energy through the wired charging cable, and there is no particular restriction on the type. For example, it can include all of the newly defined wired charging standards, including the rapid charging method using AC three-phase 380V and the full charging method using AC single phase 220V. The wireless charging module wirelessly receives power from the external wireless charging device. There is no particular restriction on the manner in which the wireless charging module uses to receive power wirelessly. For example, a magnetic induction method, a magnetic resonance method, a far-distance wireless transmission method, a microwave method, a laser method, and the like can be applied to the wireless charging module of the present invention.

배터리(140)는 전기에너지를 축적한다. 예를 들어 배터리(140)는 배터리팩, 배터리를 제어하는 BMS, 냉각부를 포함할 수 있다. 배터리팩은 복수의 배터리셀을 포함하는 배터리 모듈을 포함할 수 있다. 배터리셀은 양극소재, 음극소재, 전해역, 분리막을 이용하여 제작한다. 다만, 본 발명에 사용되는 배터리(140)의 종류와 용량에는 특별한 제한이 없다.The battery 140 accumulates electric energy. For example, the battery 140 may include a battery pack, a BMS for controlling the battery, and a cooling unit. The battery pack may include a battery module including a plurality of battery cells. The battery cell is fabricated using a cathode material, a cathode material, a transfer zone, and a separator. However, the type and capacity of the battery 140 used in the present invention are not particularly limited.

제어부(150)는 충전상태가 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료시킨다. 제어부의 구체적인 동작원리는 도 4에서 후술한다.The control unit 150 stops the charging operation of the charging module to terminate the charging of the battery if the charging condition matches the target condition. The specific operation principle of the control unit will be described later with reference to FIG.

도 3은 본 발명에 따른 전기자동차의 배터리충전제어방법의 바람직한 실시예를 나타내는 도면이다. 도 3의 제어방법은 배터리충전제어장치가 실행주체이다. 따라서 도 2의 설명과 중복을 피하기 위해 간략하게 설명하면 다음과 같다.3 is a diagram showing a preferred embodiment of a method for controlling charging of a battery of an electric vehicle according to the present invention. The control method of Fig. 3 is an execution subject of the battery charge control device. Therefore, in order to avoid duplication with the description of FIG. 2, a brief description will be given below.

도 3에서 알 수 있듯이, 본 발명의 배터리충전제어방법은 배터리 충전 개시 전에 목표조건을 설정한다(S1100). 목표조건은 전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키기 위한 조건을 의미한다.As shown in FIG. 3, the battery charging control method of the present invention sets a target condition before starting battery charging (S1100). The target condition is a condition for terminating the charging of the electric vehicle before the battery is fully charged.

배터리충전제어장치가 충전을 개시하고, 충전 중인 배터리의 충전상태(State Of Charge: SOC)를 모니터링한다(S1200). 배터리충전제어장치가 목표조건과 배터리의 충전상태(State Of Charge: SOC)를 비교한다(S1200). 배터리충전제어장치는 충전상태가 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료한다(S1400).The battery charge control apparatus starts charging and monitors the state of charge (SOC) of the battery being charged (S1200). The battery charge control device compares the target condition and the state of charge (SOC) of the battery (S1200). The battery charge control device stops the charging operation of the charging module to terminate the charging of the battery if the charging condition matches the target condition (S1400).

도 4는 본 발명에 따른 배터리충전제어방법의 동작을 예시하기 위한 그래프이다.4 is a graph illustrating the operation of the battery charge control method according to the present invention.

도 4의 실시예에서 배터리충전제어장치는 정전류모드(Constant Current: CC)에서 전기자동차의 배터리 충전을 시작한다. 그 후 배터리가 배터리의 정격전압에 도달하면 정전압모드(Constant Voltage: CV)로 충전방식을 전환한다. 이와 같은 모드를 기본으로 아래의 실시예를 설명한다.In the embodiment of FIG. 4, the battery charge control apparatus starts charging the battery of the electric vehicle at the constant current (CC) mode. When the battery reaches the rated voltage of the battery, the charging method is switched to the constant voltage (CV) mode. The following embodiment will be described based on such a mode.

도 4의 가로축은 시간(sec)을 의미한다. 도 4의 상단에는 시간에 따른 배터리의 전압(V)의 변화가 도시된다. 도 4의 하단에는 시간에 따른 배터리의 충전율(%)의 변화가 도시된다. 배터리의 충전정격은 400V인 것을 예로 들어 설명한다.The horizontal axis in Fig. 4 means time (sec). At the top of FIG. 4, a change in the voltage V of the battery over time is shown. The lower part of FIG. 4 shows a change in the charging rate (%) of the battery with time. The charge rating of the battery is 400V as an example.

충전이 개시될 때 배터리의 전압은 280V까지 낮아져있다. 충전이 개시되면 배터리의 전압이 상승한다. 이에 비례해서 배터리의 충전율도 상승한다.At the start of charging, the battery voltage has dropped to 280V. When charging starts, the voltage of the battery rises. In proportion to this, the charging rate of the battery also rises.

3000sec가 되면 배터리의 전압이 정격전압인 400V에 도달한다. 이때 배터리의 충전율은 90%가 된다. 즉, 50분(3000sec)이 경과하면 배터리가 90%까지 완충되는 것이다. 그런데 흥미로운 것은 배터리를 10% 더 충전하기 위해 소요되는 시간이다. 즉, 10%를 더 충전하여 완충되기까지 거의 1시간 가까운 시간이 추가로 소요된다. 다시말해, 배터리가 완충되는데 2시간이 소요된다고 가정할 때, 배터리를 90% 충전하는데 소요되는 시간은 2시간의 90%인 1시간 48분이 아니라는 것이며, 2시간 중 절반이 채 되지않는 시간인 50분만에 90%가 충전된다는 것이다. 본 발명은 바로 이와 같은 배터리충전특성을 이용하여 운전자의 충전대기시간을 감소시킨다.At 3000sec, the voltage of the battery reaches the rated voltage of 400V. At this time, the charging rate of the battery becomes 90%. That is, after 50 minutes (3000 sec), the battery is fully charged to 90%. What is interesting, however, is the time it takes to charge the battery by 10%. That is, it takes an additional time of about 1 hour until the buffer is filled with 10% more. In other words, assuming that the battery takes 2 hours to fully charge, 90% of the time it takes to charge the battery is not 1 hour 48 minutes, which is 90% of 2 hours, and 50% 90% will be charged at delivery. The present invention uses such battery charging characteristics to reduce the charge waiting time of the driver.

즉, 본 발명은 배터리가 완충되기 전에 충전을 종료하여 운전자의 대기시간을 감소시킬 수 있다. 충전을 종료시키기 위해 소정의 목표조건을 설정한다. 바람직한 실시예에서 목표조건은 아래와 같이 설정될 수 있다.That is, the present invention can reduce the waiting time of the driver by terminating the charging before the battery is fully charged. A predetermined target condition is set to terminate the charging. In the preferred embodiment, the target condition can be set as follows.

배터리충전제어장치가 정전류모드에서 소정의 배터리 전압을 목표조건으로 설정한다. 이때 소정의 배터리 전압은 배터리의 정격전압(예를 들면 400V)일 수 있다. 이렇게 설정하면 배터리 충전이 진행되는 도중에 배터리의 전압이 400V가 되는 순간 배터리 충전이 종료된다. 이로서 운전자의 충전대기시간이 획기적으로 감소된다. 도 4에서는 충전대기시간이 거의 절반 이하로 감소되었다. 반면에 배터리의 충전량은 90%에 육박한다. The battery charge control device sets the predetermined battery voltage as the target condition in the constant current mode. At this time, the predetermined battery voltage may be the rated voltage of the battery (for example, 400 V). When this setting is made, the battery charging ends as soon as the battery voltage reaches 400V while the battery is being charged. This dramatically reduces the waiting time for the driver to charge. In Fig. 4, the charging waiting time was reduced to almost half. On the other hand, the battery charge is close to 90%.

다른 실시예에서 목표조건은 배터리 충전모드가 정전류모드에서 정전압모드로 변환될 때로 설정할 수 있다. 정전류모드에서 충전전압이 배터리의 정격전압에 도달하면 충전모드가 정전압모드로 변환되는데 이때를 기준으로 충전을 종료시키는 것이다.In another embodiment, the target condition can be set when the battery charging mode is changed from the constant current mode to the constant voltage mode. When the charging voltage reaches the rated voltage of the battery in the constant current mode, the charging mode is switched to the constant voltage mode, and the charging is terminated on the basis of the charging voltage.

다른 실시예에서 목표조건은 배터리 충전량(%)일 수 있고, 충전시간(min)일 수도 있으며, 잔여주행거리(km)일 수 있다. 예를 들어, 배터리가 50%충전되면 충전을 종료한다거나, 잔여주행거리가 100km일 때 충전을 종료시킬 수 있다.In another embodiment, the target condition may be battery charge (%), charge time (min), or remaining mileage (km). For example, when the battery is 50% charged, the charging may be terminated, or the charging may be terminated when the remaining mileage is 100 km.

본 발명의 보호범위가 이상에서 명시적으로 설명한 실시예의 기재와 표현에 제한되는 것은 아니다. 또한, 본 발명이 속하는 기술분야에서 자명한 변경이나 치환으로 말미암아 본 발명이 보호범위가 제한될 수도 없음을 다시 한 번 첨언한다.The scope of protection of the present invention is not limited to the description and the expression of the embodiments explicitly described in the foregoing. It is again to be understood that the present invention is not limited by the modifications or substitutions that are obvious to those skilled in the art.

Claims (5)

전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키는 목표조건을 설정하는 목표설정부;
상기 목표조건과 배터리의 충전상태(State Of Charge: SOC)를 비교하는 모니터링부; 및
상기 충전상태가 상기 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료시키는 제어부를 포함하는 것을 특징으로 하는,
배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어장치.A target setting unit for setting a target condition for terminating charging of the electric vehicle before the battery is fully charged;
A monitoring unit for comparing the target condition with a state of charge (SOC) of the battery; And
And stopping the charging operation of the charging module to terminate the charging of the battery when the charging condition matches the target condition.
A battery charge control device of an electric vehicle that adjusts a charging end timing according to a battery charge state. (a) 전기자동차의 배터리가 완전히 충전되기 전에 충전을 종료시키는 목표조건을 설정하는 단계;
(b) 상기 목표조건과 배터리의 충전상태(State Of Charge: SOC)를 비교하는 단계; 및
(c) 상기 충전상태가 상기 목표조건과 일치하면 충전모듈의 충전동작을 중지하여 배터리 충전을 종료하는 단계를 포함하는 것을 특징으로 하는,
배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어방법.(a) establishing a target condition for terminating charging of the electric vehicle before the battery is fully charged;
(b) comparing the target condition with a state of charge (SOC) of the battery; And
(c) stopping the charging operation of the charging module to terminate the charging of the battery when the charging state matches the target condition.
A method for controlling charge of a battery in an electric vehicle, the method comprising: 제2항에 있어서,
상기 (a) 단계는 정전류모드(Constant Current: CC)에서 소정의 배터리 전압을 목표조건으로 설정하는 단계이고,
상기 (c) 단계는 배터리의 전압이 목표조건에 설정된 배터리 전압과 일치하면, 정전압모드(Constant Voltage: CV)를 포함하는 충전모드로 충전방식을 전환하지 않고 충전을 종료하는 것인,
배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전제어방법.3. The method of claim 2,
In the step (a), a predetermined battery voltage is set as a target condition in a constant current (CC) mode,
Wherein the step (c) ends the charging without switching the charging mode to the charging mode including the constant voltage (CV) if the voltage of the battery coincides with the battery voltage set to the target condition.
A method for controlling charge of a battery in an electric vehicle, the method comprising: 전기자동차에 전력을 공급하는 배터리;
상기 배터리를 충전하기 위한 충전모듈; 및
제1항의 배터리충전제어장치를 포함하는 것을 특징으로 하는, 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차.A battery for supplying electric power to the electric vehicle;
A charging module for charging the battery; And
An electric automobile as set forth in claim 1, characterized by comprising a battery charge control device. 전기자동차에 전력을 공급하는 유선 또는 무선 충전모듈; 및
제1항의 배터리충전제어장치를 포함하는 것을 특징으로 하는, 배터리 충전상태에 따라 충전종료 시기를 조절하는 전기자동차의 배터리충전장치.A wired or wireless charging module for supplying electric power to the electric vehicle; And
An apparatus for charging a battery of an electric vehicle, comprising: the battery charging control device according to claim 1;
KR1020160141776A 2016-10-28 2016-10-28 Battary charging apparatus and method for controlling terminate time of charging based on state of charge KR20180046538A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020160141776A KR20180046538A (en) 2016-10-28 2016-10-28 Battary charging apparatus and method for controlling terminate time of charging based on state of charge
PCT/KR2017/012011 WO2018080237A2 (en) 2016-10-28 2017-10-27 Battery charge control device and method for electric vehicle to adjust charge termination time according to state of charge of battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160141776A KR20180046538A (en) 2016-10-28 2016-10-28 Battary charging apparatus and method for controlling terminate time of charging based on state of charge

Publications (1)

Publication Number Publication Date
KR20180046538A true KR20180046538A (en) 2018-05-09

Family

ID=62025219

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160141776A KR20180046538A (en) 2016-10-28 2016-10-28 Battary charging apparatus and method for controlling terminate time of charging based on state of charge

Country Status (2)

Country Link
KR (1) KR20180046538A (en)
WO (1) WO2018080237A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109591628A (en) * 2018-11-21 2019-04-09 东风汽车集团有限公司 A kind of wireless charging system for electric automobile and method based on automatic Pilot

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4946749B2 (en) * 2007-09-14 2012-06-06 三菱自動車工業株式会社 Vehicle battery control device
JP5401884B2 (en) * 2008-09-22 2014-01-29 日産自動車株式会社 Lithium secondary battery charge control method, charge control device, and vehicle
KR20130081873A (en) * 2012-01-10 2013-07-18 엘에스전선 주식회사 Electric vehicle charge apparatus, module and method
KR101592742B1 (en) * 2014-07-28 2016-02-18 현대자동차주식회사 Charging control method for eco-friendly vehicle
KR102253188B1 (en) * 2014-08-01 2021-05-18 엘지이노텍 주식회사 Apparatus for controlling rapid charging of electric vehicle

Also Published As

Publication number Publication date
WO2018080237A2 (en) 2018-05-03
WO2018080237A3 (en) 2018-08-09

Similar Documents

Publication Publication Date Title
US10770766B2 (en) Heating control device
JP5577775B2 (en) Electric vehicle power supply
KR101571943B1 (en) Battery charging control device
JP3706565B2 (en) Power supply for hybrid cars
CN103682519B (en) Low-temperature environment of electric vehicle heating means
US9136727B2 (en) Battery charging control device
CN110303944B (en) Electric automobile rapid charging system and method
US20160294021A1 (en) Charging apparatus, electricity storage system, charging method, and program
KR20160013551A (en) Charging control method for eco-friendly vehicle
KR20190068940A (en) Battery charging method for electric vehicle
CN112848972A (en) Fuel cell control method and system under low temperature condition
JP2002142379A (en) Charging method for battery
KR20180038822A (en) System for controlling relay of an auxiliary battery and method thereof
JP2012100383A (en) Charging control unit
EP3409528B1 (en) Charge control apparatus of electric vehicle
CN114030368A (en) Electric automobile quick charging system and control method thereof
KR20180046538A (en) Battary charging apparatus and method for controlling terminate time of charging based on state of charge
JPH1155866A (en) Battery charger
CN109616718B (en) Electric automobile, power battery system and heating control method thereof
KR20160126338A (en) System and Method for controlling output voltage of Low Voltage DC-DC Converter
KR102286833B1 (en) PHEV charging system and its control method
CN112440818B (en) Charging and discharging device of power battery, control method and vehicle
CN112952940A (en) High-voltage charging system and charging method of high-voltage charging system
CN114976321A (en) Low-temperature charging and heating system for power battery and control method
KR101856021B1 (en) Apparatus and method for controlling temperature of battery

Legal Events

Date Code Title Description
E902 Notification of reason for refusal