KR101936960B1 - Method and system for charging elecricity for vehicle - Google Patents

Method and system for charging elecricity for vehicle Download PDF

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KR101936960B1
KR101936960B1 KR1020120154113A KR20120154113A KR101936960B1 KR 101936960 B1 KR101936960 B1 KR 101936960B1 KR 1020120154113 A KR1020120154113 A KR 1020120154113A KR 20120154113 A KR20120154113 A KR 20120154113A KR 101936960 B1 KR101936960 B1 KR 101936960B1
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charging
amount
charge
rapid
time
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KR1020120154113A
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KR20140084543A (en
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안오영
성기택
박현수
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현대자동차주식회사
기아자동차주식회사
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    • 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]
    • 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
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

요구충전량을 입력받는 입력단계; 요구충전량이 기준충전량을 넘는 경우 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고, 기준충전량 또는 요구충전량의 선택을 입력받는 안내단계; 기준충전량이 선택된 경우 급속충전을 수행하는 급속충전단계; 및 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 수행하고 기준충전량부터 요구충전량까지는 완속충전을 수행하는 완속충전단계;를 포함하는 차량의 전기충전방법 및 전기충전시스템이 소개된다.An input step of receiving a required charged amount; A guiding step of displaying the charging time up to the reference charging amount and the charging time to the required charging amount when the required charging amount exceeds the reference charging amount and receiving the selection of the reference charging amount or the required charging amount; A rapid charging step of performing rapid charging when the reference charging amount is selected; And a slow charge step of performing rapid charge up to a reference charge amount when the required charge amount is selected and performing a slow charge from the reference charge amount to the required charge amount, and an electric charge system of the vehicle.

Description

차량의 전기충전방법 및 전기충전시스템 {METHOD AND SYSTEM FOR CHARGING ELECRICITY FOR VEHICLE}[0001] METHOD AND SYSTEM FOR CHARGING ELECRICITY FOR VEHICLE [0002]

본 발명은 급속충전기를 이용하여 고 SOC충전기능을 추가하고 충전 잔여시간을 안내함으로써 소비자에게 선택권과 편의를 제공할 수 있는 차량의 전기충전방법 및 전기충전시스템에 관한 것이다.
The present invention relates to an electric charging method and an electric charging system for a vehicle, which can provide a user with options and convenience by adding a high SOC charging function using a quick charger and guiding a remaining charge time.

환경과 에너지 효율에 대한 관심의 일환으로 전기자동차가 발명되었다. 소비자 입장에서 전기자동차의 핵심은 충전하는데 얼마나 소요되는지, 또 충전 후에 얼마나 주행가능한지 이다.An electric vehicle was invented as part of the interest in the environment and energy efficiency. For consumers, the core of an electric car is how long it takes to charge and how long it can travel after charging.

충전시간은 현재 차량의 잔존SOC와 충전방식에 따라 결정된다. 급속충전의 경우 고전류 단시간 충전으로 만충 시까지 25분이 소요되며 SOC 80%로 충전한다. 이에 비해 완속 충전은 저전류 장시간 충전으로 만충 시까지 5시간이 걸리나 SOC 90%로 충전완료하게 된다.또한 고SOC로 충전할수록 주행가능거리가 길어진다. The charging time is determined according to the residual SOC of the current vehicle and the charging mode. In the case of rapid charging, it takes 25 minutes to fully charge with a high current for a short time, and it is charged to SOC 80%. In contrast, the slow charge takes 5 hours to fully charge the battery with a low current for a long time, but the charge is completed at 90% of the SOC.

종래의 급속충전은 고전류 충전시 배터리 특성상 고SOC 충전이 불가하다. 하지만 급속충전기로도 완속충전과 같이 저전류 충전모드를 추가적용 한다면 고SOC로 충전할 수 있고, 시간여유가 있는 소비자에게 선택권을 주어 고SOC로 충전할 수 있다. 뿐만 아니라 고SOC로 충전 시 완속충전기를 이용하는것 보다 충전시간을 단축할 수 있다. In the conventional rapid charging, high SOC charging can not be performed due to the characteristics of the battery during high current charging. However, even with a fast charger, if you apply the low current charging mode like the slow charging mode, you can charge with high SOC. In addition, charging time can be shorter than using a slow charger when charging with high SOC.

따라서 본 발명을 적용할 경우 소비자가 급속충전기로 충전할 때 SOC 80%종료시점과 고SOC 충전종료시점에 대한 선택권을 주어 고SOC 충전에 대한 시간 효율성 및 주행가능 증대를 제공할 수 있을 것이다.Therefore, when the present invention is applied, the user can give a choice of the end point of SOC 80% and the end point of high SOC charge when charging with the rapid charger, thereby providing the time efficiency and the increase of travelability for high SOC charging.

현재 급속충전은 약25분 동안 100A충전 통해 SOC 80%까지만 충전할 수 있다. 완속 충전기는 약 5시간 동안 10A충전 통해 SOC 90%까지 충전가능하다. 다시 말해 현재 급속충전기 충전로직으로는 저전류 충전 및 고SOC 충전이 절대 불가한 상태이다. 따라서 고객은 급속충전 스테이션에 갈 경우 시간적 여유가 있다 하더라도 무조건 80%로만 충전을 해야한다.
The current fast charge can only charge up to 80% of the SOC through a 100A charge for about 25 minutes. The slow charger can charge up to 90% SOC through 10A charge for about 5 hours. In other words, it is impossible to charge low current and high SOC with the present fast charger charging logic. Therefore, even if there is time to go to the rapid charging station, the customer must charge only 80%.

종래의 KR10-2004-0031196 A "전기 차량의 배터리 급속 충전 제어방법"은 "본 발명은 배터리 냉각 조건이 동일한 환경에서 배터리 온도를 제어함으로써 급속 충전시 배터리 온도를 급속 충전 중단 온도 이하로 유지하면서 최단시간에 급속 충전 목표까지 충전을 가능하게 하는 전기 차량의 배터리 급속 충전 제어방법에 관한 것으로, 상기 전기 차량의 급속 충전 모드 상태를 검출하는 단계와; 급속 충전 모드 상태이면 배터리 제어부(BMS)를 통해 배터리 온도에 따라 설정된 함수로 급속 충전 전류 제어를 수행하는 단계와; 검출된 배터리 온도와 설정 온도를 비교하는 단계와; 상기 검출된 배터리 온도가 설정 온도 미만이면 배터리 충전상태(SOC)를 검출하는 단계와; 상기 검출된 배터리 충전상태(SOC)가 설정상태 이상이면 배터리 냉각 제어동작을 수행하는 단계를 포함하여 이루어진다."를 제시한다.
The conventional KR10-2004-0031196 A "battery rapid charge control method of electric vehicle" is a method of controlling the battery temperature in an environment where battery cooling conditions are the same, The present invention relates to a method for rapidly charging a battery in an electric vehicle that enables charging to a rapid charge target in a short period of time by detecting a rapid charging mode of the electric vehicle, (SOC) when the detected battery temperature is lower than a predetermined temperature, comparing the sensed battery temperature with a preset temperature, and performing a fast charge current control with a function set according to temperature. Performing a battery cooling control operation when the detected battery charge state (SOC) is equal to or greater than a preset state Presents made to "comprising.

그러나 이러한 종래의 기술에 의하더라도 소비자가 급속충전기로 충전할 때 SOC 80%종료시점과 고SOC 충전종료시점에 대한 선택권을 주어 고SOC 충전에 대한 시간 효율성 및 주행가능 증대를 제공하는 방안은 제시되지 않았다.
However, according to this conventional technology, there is no suggestion to provide the time efficiency and the increase of travel possibility for charging the high SOC by giving a choice of the end point of the SOC 80% and the end point of the high SOC charging when the consumer charges the fast charger I did.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.
It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KRKR 10-2004-003119610-2004-0031196 AA

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 급속충전기를 이용하여 고 SOC충전기능을 추가하고 충전 잔여시간을 안내함으로써 소비자에게 선택권과 편의를 제공할 수 있는 차량의 전기충전방법 및 전기충전시스템을 제공하는데 그 목적이 있다.
The present invention has been proposed in order to solve such a problem, and it is an object of the present invention to provide an electric charging method and an electric charging system of a vehicle, which can provide a choice and convenience to a consumer by adding a high SOC charging function using a quick charger, The purpose is to provide.

상기의 목적을 달성하기 위한 본 발명에 따른 차량의 전기충전방법은, 요구충전량을 입력받는 입력단계; 요구충전량이 기준충전량을 넘는 경우 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고, 기준충전량 또는 요구충전량의 선택을 입력받는 안내단계; 기준충전량이 선택된 경우 급속충전을 수행하는 급속충전단계; 및 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 수행하고 기준충전량부터 요구충전량까지는 완속충전을 수행하는 완속충전단계;를 포함한다.According to an aspect of the present invention, there is provided an electric charging method for a vehicle, including: inputting a required charging amount; A guiding step of displaying the charging time up to the reference charging amount and the charging time to the required charging amount when the required charging amount exceeds the reference charging amount and receiving the selection of the reference charging amount or the required charging amount; A rapid charging step of performing rapid charging when the reference charging amount is selected; And a slow charging step of performing rapid charging up to the reference charging amount when the required charging amount is selected and performing the constant charging from the reference charging amount to the required charging amount.

상기 입력단계는, 요구충전량이 기준충전량을 넘지 않는 경우 급속충전을 수행하는 일반단계;를 더 포함할 수 있다.The input step may further include performing a rapid charge when the required charge amount does not exceed the reference charge amount.

상기 안내단계의 기준충전량까지의 충전시간은 급속충전에 따른 예상시간일 수 있다.The charging time up to the reference charging amount in the guiding step may be an expected time due to rapid charging.

상기 안내단계의 요구충전량까지의 충전시간은 기준충전량까지의 급속충전에 따른 예상시간과 기준충전량부터 요구충전량까지의 완속충전에 따른 예상시간을 합할 수 있다.The charging time up to the required charging amount in the guiding step may be the sum of the estimated time for rapid charging up to the reference charging amount and the estimated time for the slow charging from the reference charging amount to the required charging amount.

상기 급속충전은 높은 정전류 또는 정전압에 의한 충전이고 완속충전은 낮은 정전류 또는 정전압에 의한 충전일 수 있다.The rapid charging may be charging by a high constant current or a constant voltage, and the slow charging may be charging by a low constant current or a constant voltage.

상기 기준충전량은 SOC 70~90%의 범위에서 미리 선택될 수 있다.
The reference charge amount may be selected in advance within a range of SOC 70 to 90%.

한편, 본 발명의 차량의 전기충전시스템은, 차량과 연결되는 충전커넥터; 입출력 디스플레이; 상기 디스플레이를 통해 요구충전량을 입력받고 요구충전량이 기준충전량을 넘는 경우에는 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고 선택을 입력받는 충전기; 및 기준충전량이 선택된 경우 급속충전을 충전기에 요청하고, 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 충전기에 요청하며 기준충전량부터 요구충전량까지는 완속충전을 충전기에 요청하는 차량제어부;를 포함한다.
On the other hand, the electric charging system for a vehicle of the present invention includes: a charging connector connected to a vehicle; I / O display; A charger for inputting a required charge amount through the display and displaying a charge time up to a reference charge amount and a charge time to a required charge amount when a required charge amount exceeds a reference charge amount and receiving a selection; And a vehicle controller for requesting rapid charging to the charger when the reference charging amount is selected and requesting the charger for rapid charging up to the reference charging amount when the required charging amount is selected and requesting the charging device for the continuous charging from the reference charging amount to the required charging amount.

상술한 바와 같은 구조로 이루어진 차량의 전기충전방법 및 전기충전시스템에 따르면, 급속충전기의 저전류 충전기능 추가적용을 통해 고SOC 충전 가능 및 SOC 충전에 대한 선택권을 주도록 할 수 있다.According to the electric charging method and the electric charging system of the vehicle having the structure as described above, it is possible to provide a high SOC charging ability and a SOC charging option by applying the low current charging function of the quick charger.

고SOC 충전은 SOC 80%까지는 고전류로 충전하고, 그 이후에 전류 command를 가변하여 저전류 충전을 허용해 고SOC(예,90%)까지 충전을 수행하며, 차량의 BMS는 기존 80%충전 잔여시간과 고SOC충전 잔여시간을 이원화하여 CAN송신하며, 이를 급속충전기 화면에 표시한 후 고객으로 하여금 선택충전 가능토록 적용할 수 있다.High SOC charging is performed at a high current up to SOC 80%, then the current command is varied to allow low current charging to perform charging up to a high SOC (for example, 90%). Time and the high SOC charge remaining time are binarized and transmitted to the CAN, which can be displayed on the rapid charger screen, and then applied to the customer so that the user can selectively charge the battery.

따라서, 완속충전과 동일한 고SOC충전을 급속충전기를 통해 훨씬 더 빠른 시간 안에 수행가능하며 고객필요시 추가충전을 빠른시간 내에 수행할 수 있다.
Therefore, the same high SOC charge as the slow charge can be performed in a much faster time through the rapid charger, and the additional charge can be performed in a short time when the customer needs it.

도 1은 본 발명의 일 실시예에 따른 차량의 전기충전방법의 순서도.
도 2는 도 1에 도시된 차량의 전기충전방법의 효과를 나타낸 그래프.
도 3 내지 4는 도 1에 도시된 차량의 전기충전방법의 디스플레이 내용을 나타낸 도면.
도 5는 본 발명의 일 실시예에 따른 차량의 전기충전시스템의 구성도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method for charging an electric vehicle according to an embodiment of the present invention; FIG.
2 is a graph showing the effect of the electric charging method of the vehicle shown in Fig.
Figs. 3 to 4 show display contents of the electric charging method of the vehicle shown in Fig. 1. Fig.
5 is a configuration diagram of an electric charging system for a vehicle according to an embodiment of the present invention;

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 차량의 전기충전방법 및 전기충전시스템에 대하여 살펴본다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electric charging method and an electric charging system of a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 차량의 전기충전방법의 순서도이고, 도 2는 도 1에 도시된 차량의 전기충전방법의 효과를 나타낸 그래프이며, 도 3 내지 4는 도 1에 도시된 차량의 전기충전방법의 디스플레이 내용을 나타낸 도면이고, 도 5는 본 발명의 일 실시예에 따른 차량의 전기충전시스템의 구성도이다.
2 is a graph showing the effect of the electric charging method of the vehicle shown in Fig. 1, and Figs. 3 to 4 are graphs showing the effect of the electric charging method of the vehicle shown in Fig. 1 Fig. 5 is a configuration diagram of an electric charging system of a vehicle according to an embodiment of the present invention. Fig.

도 1은 본 발명의 일 실시예에 따른 차량의 전기충전방법의 순서도로서, 본 발명은 급속충전기를 이용하여 고 SOC충전기능을 추가하고 충전 잔여시간을 안내함으로써 소비자에게 선택권과 편의를 제공할 수 있는 차량의 전기충전방법 및 전기충전시스템에 관한 것이다.FIG. 1 is a flow chart of a method for charging an automobile according to an embodiment of the present invention. The present invention can provide options and convenience to consumers by adding a high SOC charging function using a quick charger and guiding a remaining charge time The present invention relates to an electric charging method and an electric charging system for a vehicle having a plurality of electric motors.

본 발명의 차량의 전기충전방법은, 요구충전량을 입력받는 입력단계(S200); 요구충전량이 기준충전량을 넘는 경우 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고, 기준충전량 또는 요구충전량의 선택을 입력받는 안내단계(S420); 기준충전량이 선택된 경우 급속충전을 수행하는 급속충전단계(S422); 및 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 수행하고 기준충전량부터 요구충전량까지는 완속충전을 수행하는 완속충전단계(S424,S426);를 포함한다.An electric charging method for a vehicle according to the present invention includes an input step (S200) of inputting a required charged amount; A guiding step (S420) for displaying the charging time up to the reference charging amount and the charging time to the required charging amount when the required charging amount exceeds the reference charging amount, and receiving the selection of the reference charging amount or the required charging amount; A rapid charging step S422 for performing rapid charging when the reference charging amount is selected; And a slow charging step (S424, S426) in which rapid charging is performed up to the reference charging amount when the required charging amount is selected and full charging is performed from the reference charging amount to the required charging amount.

본 발명의 경우 배터리를 충전하고 모터 등을 구동하여 주행을 하는 차량에 적용되는 것으로써, 이는 대표적으로 전기자동차를 들 수 있다.In the case of the present invention, it is applied to a vehicle that travels by charging a battery and driving a motor or the like, which is typically an electric vehicle.

먼저 차량은 충전소에 주차를 한 후 충전커넥터를 연결한다(S100). 그리고 충전소의 디스플레이에서는 요구충전량을 입력받는 입력단계(S200)를 수행한다.First, the car parks at the charging station and then connects the charging connector (S100). In the display of the charging station, an input step (S200) for inputting the required charged amount is performed.

디스플레이는 차량의 BMS(BATTERY MANAGEMENT SYSTEM)로부터 SOC(STATE OF CHARGE)를 전달받고, 사용자로부터 입력된 요구충전량을 SOC와 비교하여 충전이 필요한 실질 충전량을 도출한다.The display receives a state of charge (SOC) from a battery management system (BMS) of the vehicle, compares the required charge amount inputted from the user with the SOC, and derives an actual charge amount required to be charged.

한편, 도 3 내지 4는 도 1에 도시된 차량의 전기충전방법의 디스플레이 내용을 나타낸 도면으로서, 먼저 도 3과 같이 사용자로부터 요구충전량을 입력받는다(S200).3 to 4 are views showing the display contents of the vehicle electric charging method shown in FIG. 1. First, as shown in FIG. 3, the user inputs a required charged amount (S200).

그 후 요구충전량을 기준충전량과 비교(S300)하고, 요구충전량이 기준충전량을 넘지 않는다면 일반적인 급속충전을 고전류를 이용하여 수행한다(S320,S340).Thereafter, the required charge amount is compared with the reference charge amount (S300). If the required charge amount does not exceed the reference charge amount, general rapid charge is performed using high current (S320, S340).

여기서 기준충전량이란 SOC를 기준으로 하여 70~90%의 범위에서 미리 선택되어 마련될 수 있다. 예를 들어 기준충전량이 80% 이하인 경우에는 급속충전을 통하여 80%까지 충전하는 것이고, 이를 넘는 경우의 영역에서는 즉, 80~90%까지의 영역에서는 완속충전을 통하여 시간이 다소 소요되더라도 저전류를 이용하여 충전하도록 하는 것이다.
Here, the reference charging amount may be pre-selected in the range of 70 to 90% based on the SOC. For example, if the reference charge amount is 80% or less, the battery is charged up to 80% through rapid charging. In the range exceeding 80%, that is, in the range of 80 to 90% So as to be charged.

한편, 요구충전량이 기준충전량을 넘는 경우 예를 들어 95%인 경우, 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고(S400), 기준충전량 또는 요구충전량의 선택을 입력받는 안내단계(S420)를 수행한다.On the other hand, if the required charge amount exceeds the reference charge amount, for example, if it is 95%, the charge time to the reference charge amount and the charge time to the required charge amount are displayed (S400) (S420).

즉, 도 4와 같이 기준충전량인 80%까지의 예상 충전시간을 디스플레이하며 동시에 입력된 요구충전량인 95%까지의 예상 충전시간을 디스플레이하고 선택을 입력받는 것이다.That is, as shown in FIG. 4, the estimated charging time up to 80% of the reference charging amount is displayed, and at the same time, the expected charging time up to 95%, which is the input required charging amount, is displayed.

이러한 구성에 의해 사용자는 시간이 많다면 요구충전량까지 선택할 것이고, 그렇지 않다면 기준충전량을 선택함으로써 사용자의 의도에 부합하고 편의성을 제공하는 것이다.
With this configuration, the user will select the required charge amount if there is a lot of time, and if not, to meet the user's intention and provide convenience by selecting the reference charge amount.

그리고, 기준충전량이 선택된 경우 급속충전을 수행하는 급속충전단계(S422)를 수행한다.If the reference charge amount is selected, rapid charge step S422 for performing rapid charge is performed.

또한, 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 수행하고 기준충전량부터 요구충전량까지는 완속충전을 수행하는 완속충전단계(S424,S426)를 수행한다.
When the required charge amount is selected, rapid charging is performed up to the reference charge amount, and a slow charge step (S424, S426) is performed to perform the continuous charge from the reference charge amount to the required charge amount.

도 2는 도 1에 도시된 차량의 전기충전방법의 효과를 나타낸 그래프로서, T_100A는 100A 전류 요청시 급속충전의 소요시간이고, T_10A은 10A 전류 요청시 완속충전의 소요시간이다. 이러한 그래프를 볼 때, 본 발명의 경우 급속충전기를 이용하여 고SOC까지 충전할 경우 완속충전기로 동일 SOC까지 충전시에 비해 소비되는 시간의 단축이 가능한 것이다. 물론, 본 발명이 적용되는 충전기의 경우 급속과 완속을 교대할 수 있는 것이라야 할 것이다.
FIG. 2 is a graph showing the effect of the electric charging method of the vehicle shown in FIG. 1, where T_100A is a time required for rapid charging when a current of 100A is requested, and T_10A is a time required for completing a fast charging when a current of 10A is requested. In this graph, in the case of the present invention, when the fast charger is charged to a high SOC, it is possible to shorten the time consumed compared to charging to the same SOC by the slow charger. Of course, in the case of a charger to which the present invention is applied, it should be able to alternate between rapid and gradual.

또한, 상기 입력단계(S200)는, 요구충전량이 기준충전량을 넘지 않는 경우 급속충전을 수행하는 일반단계(S340);를 더 포함할 수 있다.In addition, the input step (S200) may further include a general step (S340) of performing rapid charging when the required charged amount does not exceed the reference charged amount.

그리고 상기 안내단계(S420)의 기준충전량까지의 충전시간은 급속충전에 따른 예상시간이고, 상기 안내단계(S420)의 요구충전량까지의 충전시간은 기준충전량까지의 급속충전에 따른 예상시간과 기준충전량부터 요구충전량까지의 완속충전에 따른 예상시간을 합한 시간으로 함이 바람직하다.The charging time up to the reference charging amount in the guiding step S420 is an estimated time according to rapid charging. The charging time up to the required charging amount in the guiding step S420 corresponds to the estimated time according to rapid charging up to the reference charging amount, To the required charging amount, the estimated time corresponding to the slow charging.

또한, 상기 급속충전은 높은 정전류 또는 정전압에 의한 충전이고 완속충전은 낮은 정전류 또는 정전압에 의한 충전이며, 상기 기준충전량은 SOC 70~90%의 범위에서 미리 선택될 수 있다.
In addition, the rapid charging is charging with a high constant current or a constant voltage, and the slow charging is charging with a low constant current or a constant voltage, and the reference charging amount can be preselected in the range of 70 to 90% of SOC.

한편, 도 5는 본 발명의 일 실시예에 따른 차량의 전기충전시스템의 구성도로서, 본 발명의 차량의 전기충전시스템은, 차량과 연결되는 충전커넥터; 입출력 디스플레이; 상기 디스플레이를 통해 요구충전량을 입력받고 요구충전량이 기준충전량을 넘는 경우에는 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고 선택을 입력받는 충전기; 및 기준충전량이 선택된 경우 급속충전을 충전기에 요청하고, 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 충전기에 요청하며 기준충전량부터 요구충전량까지는 완속충전을 충전기에 요청하는 차량제어부;를 포함한다.Meanwhile, FIG. 5 is a configuration diagram of an electric charging system for a vehicle according to an embodiment of the present invention, wherein the electric charging system for a vehicle of the present invention comprises: a charging connector connected to a vehicle; I / O display; A charger for inputting a required charge amount through the display and displaying a charge time up to a reference charge amount and a charge time to a required charge amount when a required charge amount exceeds a reference charge amount and receiving a selection; And a vehicle controller for requesting rapid charging to the charger when the reference charging amount is selected and requesting the charger for rapid charging up to the reference charging amount when the required charging amount is selected and requesting the charging device for the continuous charging from the reference charging amount to the required charging amount.

즉, 차량제어부는 기본적으로 차량의 현재 SOC정보를 충전기에 제공하도록 할 수도 있고, 또는 도시된 바와 같이 차량제어부에서 필요한 충전량을 계산하고 적시에 충전기로 요청을 함으로써 충전을 적극적으로 제어할 수도 있을 것이다.That is, the vehicle control unit may basically provide the current SOC information of the vehicle to the charger, or may actively control the charge by calculating the required charge amount in the vehicle control unit as shown and making a request to the charger in a timely manner .

즉, 80%를 기준충전량으로 볼 때 95%의 충전이 요구된다면 먼저 차량제어부는 충전기에 100A의 요청을 하고 충전기는 급속충전을 수행한다. 그리고 SOC 80%에서 차량제어부는 다시 10A의 요청을 하고 충전기가 완속충전을 수행하며 95% 도달시 충전중지 지령을 통하여 충전을 종료하도록 할 수 있는 것이다.
That is, if it is required to charge 95% of the battery at a reference charge of 80%, the vehicle controller first requests 100A to the charger and the charger performs rapid charging. Then, at 80% of SOC, the vehicle control unit makes a request of 10A again, and the charger performs the continuous charging, and when it reaches 95%, the charge stop command can be terminated.

상술한 바와 같은 구조로 이루어진 차량의 전기충전방법 및 전기충전시스템에 따르면, 급속충전기의 저전류 충전기능 추가적용을 통해 고SOC 충전 가능 및 SOC 충전에 대한 선택권을 주도록 할 수 있다.According to the electric charging method and the electric charging system of the vehicle having the structure as described above, it is possible to provide a high SOC charging ability and a SOC charging option by applying the low current charging function of the quick charger.

고SOC 충전은 SOC 80%까지는 고전류로 충전하고, 그 이후에 전류 command를 가변하여 저전류 충전을 허용해 고SOC(예,90%)까지 충전을 수행하며, 차량의 BMS는 기존 80%충전 잔여시간과 고SOC충전 잔여시간을 이원화하여 CAN송신하며, 이를 급속충전기 화면에 표시한 후 고객으로 하여금 선택충전 가능토록 적용할 수 있다.High SOC charging is performed at a high current up to SOC 80%, then the current command is varied to allow low current charging to perform charging up to a high SOC (for example, 90%). Time and the high SOC charge remaining time are binarized and transmitted to the CAN, which can be displayed on the rapid charger screen, and then applied to the customer so that the user can selectively charge the battery.

따라서, 완속충전과 동일한 고SOC충전을 급속충전기를 통해 훨씬 더 빠른 시간 안에 수행가능하며 고객필요시 추가충전을 빠른시간 내에 수행할 수 있다.
Therefore, the same high SOC charge as the slow charge can be performed in a much faster time through the rapid charger, and the additional charge can be performed in a short time when the customer needs it.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.
While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

S200 : 입력단계 S420 : 안내단계
S422 : 급속충전단계 S424,S426 : 완속충전단계S200: input step S420: guidance step
S422: rapid charging step S424, S426:

Claims (7)

요구충전량을 입력받는 입력단계;
요구충전량이 기준충전량을 넘는 경우 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고, 기준충전량 또는 요구충전량의 선택을 입력받는 안내단계;
기준충전량이 선택된 경우 급속충전을 수행하는 급속충전단계; 및
요구충전량이 선택된 경우 기준충전량까지는 급속충전을 수행하고 기준충전량부터 요구충전량까지는 완속충전을 수행하는 완속충전단계;를 포함하는 차량의 전기충전방법.An input step of receiving a required charged amount;
A guiding step of displaying the charging time up to the reference charging amount and the charging time to the required charging amount when the required charging amount exceeds the reference charging amount and receiving the selection of the reference charging amount or the required charging amount;
A rapid charging step of performing rapid charging when the reference charging amount is selected; And
And a slow charge step of performing rapid charge up to the reference charge amount when the required charge amount is selected and performing slow charge from the reference charge amount to the required charge amount. 청구항 1에 있어서,
상기 입력단계는, 요구충전량이 기준충전량을 넘지 않는 경우 급속충전을 수행하는 일반단계;를 더 포함하는 것을 특징으로 하는 차량의 전기충전방법.The method according to claim 1,
Wherein the inputting step further includes a general step of performing rapid charging when the required charging amount does not exceed the reference charging amount. 청구항 1에 있어서,
상기 안내단계의 기준충전량까지의 충전시간은 급속충전에 따른 예상시간인 것을 특징으로 하는 차량의 전기충전방법.The method according to claim 1,
Wherein the charging time to the reference charging amount in the guiding step is an expected time for rapid charging. 청구항 1에 있어서,
상기 안내단계의 요구충전량까지의 충전시간은 기준충전량까지의 급속충전에 따른 예상시간과 기준충전량부터 요구충전량까지의 완속충전에 따른 예상시간을 합한 것을 특징으로 하는 차량의 전기충전방법.The method according to claim 1,
Wherein the charging time up to the required charging amount in the guiding step is calculated by summing up the estimated time for rapid charging up to the reference charging amount and the estimated time for the slow charging from the reference charging amount to the required charging amount. 청구항 1에 있어서,
상기 급속충전은 높은 정전류 또는 정전압에 의한 충전이고 완속충전은 낮은 정전류 또는 정전압에 의한 충전인 것을 특징으로 하는 차량의 전기충전방법.The method according to claim 1,
Wherein the rapid charging is charging with a high constant current or a constant voltage and the slow charging is charging with a low constant current or a constant voltage. 청구항 1에 있어서,
상기 기준충전량은 SOC 70~90%의 범위에서 미리 선택된 것을 특징으로 하는 차량의 전기충전방법.The method according to claim 1,
Wherein the reference charging amount is preliminarily selected in a range of SOC 70 to 90%. 차량과 연결되는 충전커넥터;
입출력 디스플레이;
상기 디스플레이를 통해 요구충전량을 입력받고 요구충전량이 기준충전량을 넘는 경우에는 기준충전량까지의 충전시간과 요구충전량까지의 충전시간을 디스플레이하고 선택을 입력받는 충전기; 및
기준충전량이 선택된 경우 급속충전을 충전기에 요청하고, 요구충전량이 선택된 경우 기준충전량까지는 급속충전을 충전기에 요청하며 기준충전량부터 요구충전량까지는 완속충전을 충전기에 요청하는 차량제어부;를 포함하는 차량의 전기충전시스템.A charging connector connected to the vehicle;
I / O display;
A charger for inputting a required charge amount through the display and displaying a charge time up to a reference charge amount and a charge time to a required charge amount when a required charge amount exceeds a reference charge amount and receiving a selection; And
And a vehicle controller for requesting rapid charging to the charger when the reference charging amount is selected and requesting the charger for the rapid charging up to the reference charging amount when the required charging amount is selected and requesting the charger for the constant charging from the reference charging amount to the required charging amount, Charging system.
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