KR100815431B1 - Uniform energy-backup device of battery cell for hybrid electric vehicle - Google Patents

Uniform energy-backup device of battery cell for hybrid electric vehicle Download PDF

Info

Publication number
KR100815431B1
KR100815431B1 KR1020060130175A KR20060130175A KR100815431B1 KR 100815431 B1 KR100815431 B1 KR 100815431B1 KR 1020060130175 A KR1020060130175 A KR 1020060130175A KR 20060130175 A KR20060130175 A KR 20060130175A KR 100815431 B1 KR100815431 B1 KR 100815431B1
Authority
KR
South Korea
Prior art keywords
battery
cell
cells
energy
backup
Prior art date
Application number
KR1020060130175A
Other languages
Korean (ko)
Inventor
최경덕
Original Assignee
넥스콘 테크놀러지 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 넥스콘 테크놀러지 주식회사 filed Critical 넥스콘 테크놀러지 주식회사
Priority to KR1020060130175A priority Critical patent/KR100815431B1/en
Application granted granted Critical
Publication of KR100815431B1 publication Critical patent/KR100815431B1/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
    • 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
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/22—Balancing the charge of battery modules
    • 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

Abstract

An equaled energy backup device of a battery cell of a hybrid electric vehicle is provided to maximize a life span and the efficiency of a battery by using reproduced energy. An equaled energy backup device of a battery cell of a hybrid electric vehicle includes a battery(100) having a plurality of battery cells, backup battery, switches, and a switching element. The backup battery is installed on each cell of the battery. The switches are installed on each of backup battery connection lines. The switching element is installed between the backup battery connection lines. A surplus energy is stored in the backup battery which accesses a corresponding cell when a voltage of a specific cell is higher than other cells. A reproduced energy is transferred from the corresponding backup battery when the voltage of the specific cell is lower than other cells. If the voltage of the specific cell is higher than other cells and the reproduced energy which is stored in the corresponding backup battery is saturated, each cell is equalized by transferring the energy to other cells.

Description

하이브리드 전기자동차 배터리 셀의 균등 에너지 백업장치{Uniform Energy-Backup Device of Battery Cell for Hybrid Electric Vehicle}Uniform Energy-Backup Device of Battery Cell for Hybrid Electric Vehicle

도 1은 본 발명의 한 실시예의 회로도1 is a circuit diagram of one embodiment of the present invention.

도 2는 본 발명의 다른 실시예의 회로도2 is a circuit diagram of another embodiment of the present invention.

< 도면의 주요 부분에 대한 부호 설명 ><Explanation of Signs of Major Parts of Drawings>

100, 200 : 배터리 B101, B201 : 배터리 셀100, 200: battery B101, B201: battery cell

B102, B202 : 백업 배터리 T101, T201 : 스위칭 소자B102, B202: Backup battery T101, T201: Switching element

S101, S102, S201, S202 : 스위치S101, S102, S201, S202: Switch

R101, R102, R201, R202 : 저항R101, R102, R201, R202: resistor

본 발명은 하이브리드 전기자동차용 배터리 셀의 균등 에너지 백업장치에 관한 것으로, 더 자세하게는 백업 배터리에 각 셀의 잉여 에너지를 보관하거나 백업 배터리로부터 각 셀에 에너지를 전이할 수 있도록 한 것에 관한 것이다.The present invention relates to an equal energy backup device for a battery cell for a hybrid electric vehicle, and more particularly, to allow the surplus energy of each cell to be stored in a backup battery or to transfer energy from the backup battery to each cell.

일반적으로 하이브리드 전기자동차 또는 순수 전기자동차에 있어서는 배터리 충전중이나 방전 시 직렬로 연결된 배터리들과 균등하지 못한 높은 전압을 갖고 있는 배터리의 에너지를 강제적으로 방전시켜 에너지를 소모시키지 않고 백업장치에 방전에너지를 일시 저장하게 되며, 직렬로 연결된 배터리들과 균등하지 못한 낮은 전압을 갖고 있는 배터리를 균등 충전하기 위해서 백업장치에 저장된 재생 에너지를 사용하여 직렬로 연결된 배터리들과 균등하지 못한 낮은 전압을 갖고 있는 배터리를 다시 충전함으로써 배터리 에너지를 효율적으로 사용하게 된다.In general, in hybrid electric vehicles or pure electric vehicles, the energy of a battery having a high voltage that is not equal to those connected in series during the charging or discharging of a battery is forcibly discharged to temporarily discharge the discharge energy into a backup device without consuming energy. To recharge the battery that has a low voltage that is not equal to the batteries connected in series, and use the renewable energy stored in the backup device to restore the battery that has a low voltage that is not equal to the batteries connected in series. Charging effectively uses battery energy.

일반적으로 납(Lead-acid) 축전지, 니카드(Ni-Cd) 전지, 니켈수소(Ni-MH) 전지는 소형 2차 전지로서 많이 사용되어져 왔으며, 최근 휴대용, 무선전자 제품들의 개발과 시판이 증가하고 있는 추세로 볼 때 이들 제품들의 소형화 및 경량화를 위해 에너지 밀도가 높은 2차전지의 필요성이 크게 대두되고 있고, 환경 보전에 대한 관심이 높아짐에 따라 환경 친화적인 제품에 대한 관심도 놓아지고 있다.In general, lead-acid batteries, Ni-Cd batteries, and nickel-metal hydride (Ni-MH) batteries have been widely used as small secondary batteries. Recently, development and marketing of portable and wireless electronic products have increased. As a result, there is a great need for secondary batteries with high energy density for miniaturization and light weight of these products, and as interest in environmental conservation increases, interest in environmentally friendly products is also being released.

한편 리튬이온 2차전지는 이와 같은 요구를 충족시킬 수 있는 강력한 후보인데, 이와 같은 리튬 계열의 2차전지는 에너지 밀도가 높고, 우수한 보존 및 수명 특성을 보이는 등의 많은 장점을 지니고 있으나 다른 전지보다 위험하며, 안전성문제로 인하여 고전류를 흘릴 수 있는 고출력 전지를 만들기가 힘든 것이 단점이다.Lithium-ion secondary batteries, on the other hand, are strong candidates to meet these demands. Lithium-based secondary batteries have many advantages, such as high energy density, excellent storage and longevity, but are more dangerous than other batteries. The disadvantage is that it is difficult to make a high output battery that can flow high current due to safety problems.

또한 리튬이온 2차전지는 활성물질을 과충전하게 하면 위험을 초래할 수 있게 되고, 그 수명도 크게 단축된다.In addition, the lithium ion secondary battery may cause a danger if the active material is overcharged, and its life may be greatly shortened.

리튬이온 2차전지의 또 다른 문제점으로는 이차전지에서 불균형이 발생되는 것이며, 그 원인은 첫째 셀의 조립시 가변성에 있고, 둘째 각각의 셀이 충전될시 수용범위의 가변성에 있으며, 셋째 다른 방전율과 방전 사이클의 가변성에 있고, 넷째 취부 위치에 따른 배터리 팩 내부의 온도 편차에 있다.Another problem of the lithium ion secondary battery is that an imbalance occurs in the secondary battery, the cause of the first is the variability in the assembly of the cell, the second is the variability of the receiving range when each cell is charged, and the third different discharge rate Overdischarge cycles and temperature variation within the battery pack according to the fourth mounting position.

이와 같이 셀이 불균형일 경우 예상되는 결과로는 셀이 직렬로 연결되어 있어 각각의 셀은 불균형을 이루고 있으며, 그중 가장 먼저 충전이 된 배터리에 의해서 충전을 멈추어야 하는데, 이로 인하여 배터리의 가용용량의 범위를 줄여주는 결과가 초래된다.If the cells are imbalanced, the expected result is that the cells are connected in series so that each cell is imbalanced, and the charging must be stopped by the first battery that is charged. Results in a reduction of the

한편 일반적으로 하이브리드 전기 자동차(HEV; Hybrid Electric Vehicle)에 사용되고 있는 배터리의 잔존용량 산출방법은 몇 가지 방법으로 분류되고 있으며, 종래에 있어서도 각 배터리 셀의 불균형을 방지하기 위해 균등화 충전방법이 많이 제시되고 있는데, 이하에서 종래에 널리 사용되고 있는 균등화 충전방법 세 가지를 소개하면 다음과 같다.In general, a method of calculating the remaining capacity of a battery used in a hybrid electric vehicle (HEV) is classified into several methods, and in the related art, a number of equalized charging methods have been proposed to prevent imbalance of each battery cell. However, the following three introduction to the equalized charging method widely used in the prior art as follows.

첫째 종래의 저항을 이용한 셀 균등화 회로(Shunt resist R)는 각각의 셀을 모니터링하여 각 셀 중에서 가장 높은 셀을 선택하여 저항과 연결시켜 나머지 셀과 같도록 하는 방법으로, 제작이 간편하게 되는 장점이 있지만 균등화를 하기 위해 저항에서 열이 많이 방출하고 에너지를 소모시키는 단점이 있다.First, the conventional cell equalization circuit using a resistor (Shunt resist R) is a method of monitoring each cell to select the highest cell among each cell and connecting it with a resistor to make it the same as the remaining cells. In order to equalize, there is a disadvantage in that a lot of heat is released from the resistor and energy is consumed.

둘째 종래의 콘덴서를 이용한 능동적인 셀 균등화 회로는 각각의 셀을 모니터링하여 각 셀 중에서 가장 높은 셀을 적은 셀에 에너지를 전이하는 방법으로, 매우 큰 용량을 가진 콘덴서가 필요하며 에너지 전이를 콘덴서와 스위칭소자를 통해서 에너지를 전이하게 되면 열이 발생하게 되므로 열적 저항성분으로 축적된 에너 지가 방출되는 문제점이 있다.Second, the active cell equalization circuit using the conventional condenser monitors each cell and transfers energy to the smallest cell among the highest cells, and requires a capacitor with a very large capacity. When energy is transferred through the device, since heat is generated, energy accumulated as a thermal resistance component is released.

셋째 종래의 트랜스포머 방식은 공통의 트랜스포머와 각각의 배터리에 각각을 분할하여 충전하는 방식으로, 제어하는데 많은 어려움이 있다.Third, the conventional transformer method is a method of dividing and charging each of the common transformer and each battery, and there are many difficulties in controlling.

본 발명은 상기 종래의 실정을 감안하여 안출한 것이며, 그 목적이 직렬로 연결된 셀들을 균등화시킴에 있어서 에너지 소모를 방지함은 물론 배터리의 수명을 극대화할 수 있도록 하고 소모되는 에너지를 재생하여 효율을 향상시킬 수 있도록 하는 하이브리드 전기자동차용 배터리 셀의 균등 에너지 백업장치를 제공하는 데에 있는 것이다.The present invention has been made in view of the above-described conventional situation, and its purpose is to equalize cells connected in series, to prevent energy consumption, as well as to maximize the life of the battery, and to recycle the energy consumed to improve efficiency. It is to provide an equal energy backup device for a battery cell for a hybrid electric vehicle that can be improved.

본 발명은 상기의 목적을 달성하기 위하여 직렬로 연결된 다수의 셀 중에서 특정 셀의 전압이 다른 셀들보다 높을 때에 해당 셀에 접속한 백업 배터리에 잉여 에너지를 보관할 수 있도록 하고, 특정 셀의 전압이 다른 셀들보다 낮을 때에 해당 백업 배터리로부터 재생 에너지를 전이할 수 있도록 하는 것을 특징으로 하며, 이하 그 구체적인 기술내용을 첨부도면에 의거하여 더욱 자세히 설명하면 다음과 같다.In order to achieve the above object, the present invention makes it possible to store surplus energy in a backup battery connected to a corresponding cell when a voltage of a specific cell is higher than other cells among a plurality of cells connected in series, and cells having different voltages of a specific cell. When it is lower, it is characterized in that it is possible to transfer the renewable energy from the backup battery, and will be described in more detail based on the accompanying drawings, the specific technical details as follows.

즉, 도 1에는 본 발명의 한 실시예의 회로도가 도시되는 바, 이 실시예는 다수의 배터리 셀(B101)이 직렬로 연결된 직렬 배터리(100)의 각 셀(B101)마다에 백 업 배터리(B102)를 설치하고, 각 백업 배터리 연결라인마다에 스위치(S101, S102)를 설치하며, 각 백업 배터리 연결라인 사이에 스위칭 소자(T101)를 설치한 형태를 갖는다.That is, FIG. 1 shows a circuit diagram of an embodiment of the present invention, in which the backup battery B102 is stored in each cell B101 of the series battery 100 in which a plurality of battery cells B101 are connected in series. ), Switches S101 and S102 are installed in each backup battery connection line, and switching elements T101 are installed between each backup battery connection line.

이 실시예에 있어서는 직렬 배터리(100)의 다수의 셀 중에서 특정 셀(B101)의 전압이 다른 셀들보다 높을 때 스위치(S101, S102)의 작동을 통해 그에 대응되는 백업 배터리(B102)에 잉여 에너지를 보관하게 되고, 특정 셀(B101)의 전압이 다른 셀들보다 낮을 때에 스위치(S101, S102)의 작동을 통해 그에 대응되는 백업 배터리(B102)에 보관중인 재생 에너지를 해당 셀(B101)로 전이하게 된다.In this embodiment, when a voltage of a specific cell B101 is higher than other cells among the plurality of cells of the series battery 100, surplus energy is supplied to the corresponding backup battery B102 through the operation of the switches S101 and S102. When the voltage of a specific cell B101 is lower than that of other cells, the operation of the switches S101 and S102 transfers the renewable energy stored in the corresponding backup battery B102 to the corresponding cell B101. .

또한 특정 셀(B101)의 전압이 다른 직렬로 연결된 셀들보다 높고 그에 대응되는 백업 배터리(B102)에서 보관중인 재생 에너지가 포화상태일 경우 저항(R101)과 스위칭 소자(T101)를 사용하여 다른 셀 및 다른 백업 배터리에 에너지를 전이함으로써 셀(B101)들을 균등화시키게 된다.In addition, when the voltage of the specific cell B101 is higher than the cells connected in series and the renewable energy stored in the backup battery B102 corresponding thereto is saturated, the other cell and the resistor R101 and the switching element T101 are used. By transferring energy to another backup battery, the cells B101 are equalized.

도 2에는 본 발명의 다른 실시예의 회로도가 도시되어 있는 바, Figure 2 shows a circuit diagram of another embodiment of the present invention,

이 다른 실시예는 각 셀(B101)마다에 대응되는 백업 배터리(B102)가 마련되는 전술한 실시예와 달리 하나의 백업 배터리(B202)에 다수의 배터리 셀(B201)을 각각 접속하고, 각 백업 배터리 연결라인마다에 스위치(S201, S202)를 설치하며, 각 백업 배터리 연결라인 사이에 스위칭 소자(T201)를 설치한 형태를 갖는다.Unlike this embodiment, in which the backup battery B102 corresponding to each cell B101 is provided, the other embodiment connects a plurality of battery cells B201 to one backup battery B202, and each backup is performed. Switches S201 and S202 are installed at each battery connection line, and a switching element T201 is installed between each backup battery connection line.

이 다른 실시예도 전술한 실시예와 마찬가지로 특정 셀(B201)의 전압이 다른 직렬로 연결된 셀들보다 높을 때 그의 백업 배터리 연결라인에 설치된 스위치(S201, S202)를 이용하여 백업 배터리(B202)에 에너지를 보관하게 되고, 특정 셀(B201)의 전압이 다른 직렬로 연결된 셀들보다 낮을 때 스위치(S201, S202)를 이용하여 백업 배터리(B202)에 보관중인 재생 에너지를 해당 셀(B201)로 전이하게 된다.This other embodiment also applies energy to the backup battery B202 using the switches S201 and S202 installed in the backup battery connection line when the voltage of the specific cell B201 is higher than the cells connected in series. When the voltage of the specific cell B201 is lower than that of other series-connected cells, the renewable energy stored in the backup battery B202 is transferred to the corresponding cell B201 by using the switches S201 and S202.

그리고 특정 셀(B201) 전압이 다른 직렬로 연결된 배터리들보다 높고 백업 배터리(B203)에서 보관중인 재생 에너지가 포화상태일 경우 저항(R201)과 열고 닫고 할 수 있는 스위칭 소자(T201)를 사용하여 다른 셀에 에너지를 전이함으로써 각 셀(B201)을 균등화시키게 된다.When the voltage of a specific cell B201 is higher than that of other series-connected batteries, and the renewable energy stored in the backup battery B203 is saturated, another voltage is changed by using the resistor R201 and the switching element T201 that can be opened and closed. By transferring energy to the cells, each cell B201 is equalized.

도면부호중 미설명부호 R102, R202는 백업 배터리 전류 제어용 저항이다.Reference numerals R102 and R202 in the drawings denote resistors for backup battery current control.

본 발명에 있어서는 배터리 충전중이나 방전 시 직렬로 연결된 배터리 셀들과 균등하지 못한 높은 전압을 갖고 있는 배터리 셀의 에너지를 강제적으로 방전시켜 에너지를 소모시키지 않고 백업 배터리에 방전에너지를 저장할 수 있게 되며, 직렬로 연결된 배터리 셀들과 균등하지 못한 낮은 전압을 갖고 있는 배터리 셀을 균등 충전하기 위해서 백업 배터리에 저장된 재생 에너지를 사용하여 직렬로 연결된 배터리들과 균등하지 못한 낮은 전압을 갖고 있는 배터리로 다시 충전하여 배터리 에너지를 효율적으로 사용할 수 있게 된다.In the present invention, it is possible to forcibly discharge the energy of a battery cell having a high voltage which is not equal to the battery cells connected in series during charging or discharging of the battery, thereby storing the discharge energy in the backup battery without consuming energy. To recharge the battery cells that have a low voltage that is not equal to the connected battery cells, the renewable energy stored in the backup battery is used to recharge the battery energy by recharging it with a battery that has a low voltage that is not equal to the batteries connected in series. It can be used efficiently.

이상에서와 같이 본 발명은 직렬로 연결된 다수의 셀 중에서 특정 셀의 전압이 다른 셀들보다 높을 때에 해당 셀에 접속한 백업 배터리에 잉여 에너지를 보관할 수 있도록 하고, 특정 셀의 전압이 다른 셀들보다 낮을 때에 해당 백업 배터리 로부터 재생 에너지를 전이할 수 있도록 하며, 백업 배터리에 보관중인 재생에너지가 포화상태인 경우 다른 셀에 에너지를 전이함으로써 각 셀을 균등화시킬 수 있도록 한 것으로, 본 발명에 의하면 방전시의 소모에너지인 방전 열을 줄일 수 있으며 재생된 에너지를 사용하여 배터리의 수명을 극대화 할 수 있고 소모되는 에너지를 재생하여 효율을 극대화하여 사용할 수 있게 되는 등의 효과를 얻을 수 있게 된다.As described above, the present invention makes it possible to store surplus energy in a backup battery connected to a corresponding cell when a voltage of a specific cell is higher than other cells among a plurality of cells connected in series, and when the voltage of a specific cell is lower than other cells. It is possible to transfer renewable energy from the backup battery, and when the renewable energy stored in the backup battery is saturated, it is possible to equalize each cell by transferring energy to another cell. It is possible to reduce the discharge heat, which is energy, and to maximize the life span of the battery by using the regenerated energy, and to maximize the efficiency by regenerating the consumed energy.

Claims (2)

다수의 배터리 셀(B101)이 직렬로 연결된 직렬 배터리(100)의 각 셀(B101)마다에 백업 배터리(B102)를 설치하고, 각 백업 배터리 연결라인마다에 스위치(S101, S102)를 설치하며, 각 백업 배터리 연결라인 사이에 스위칭 소자(T101)를 설치하여 특정 셀의 전압이 다른 셀들보다 높을 때에 해당 셀에 접속한 백업 배터리에 잉여 에너지를 보관할 수 있도록 하고, 특정 셀의 전압이 다른 셀들보다 낮을 때에 해당 백업 배터리로부터 재생 에너지를 전이할 수 있도록 하며, 특정 셀(B101)의 전압이 다른 셀들보다 높고 해당 백업 배터리에 보관중인 재생에너지가 포화상태인 경우 다른 셀에 에너지를 전이하여 각 셀을 균등화 시킬 수 있도록 하는 것을 특징으로 하는 하이브리드 전기자동차용 배터리 셀의 균등 에너지 백업장치.A backup battery B102 is installed in each cell B101 of the serial battery 100 in which a plurality of battery cells B101 are connected in series, and switches S101 and S102 are installed in each backup battery connection line. The switching element T101 is installed between each backup battery connection line to store surplus energy in the backup battery connected to the corresponding cell when the voltage of the specific cell is higher than the other cells, and the voltage of the specific cell is lower than the other cells. It is possible to transfer the renewable energy from the backup battery at the time. When the voltage of one cell B101 is higher than other cells and the renewable energy stored in the backup battery is saturated, the energy is transferred to other cells to equalize each cell. Equal energy backup device of a battery cell for a hybrid electric vehicle, characterized in that to enable. 하나의 백업 배터리(B202)에 다수의 배터리 셀(B101)이 직렬로 연결된 직렬 배터리(100)의 전체 셀(B202)을 각각 접속하고, 각 백업 배터리 연결라인마다에 스위치(S201, S202)를 설치하며, 각 백업 배터리 연결라인 사이에 스위칭 소자(T201)를 설치하여 특정 셀의 전압이 다른 셀들보다 높을 때에 백업 배터리에 잉여 에너지를 보관할 수 있도록 하고, 특정 셀의 전압이 다른 셀들보다 낮을 때에 백업 배터리로부터 재생 에너지를 전이할 수 있도록 하며, 특정 셀(B201)의 전압이 셀들보다 높고 백업 배터리에 보관중인 재생에너지가 포화상태인 경우 다른 셀에 에너지 를 전이하여 각 셀을 균등화시킬 수 있도록 하는 것을 특징으로 하는 하이브리드 전기자동차용 배터리 셀의 균등 에너지 백업장치.All the cells B202 of the series battery 100 in which a plurality of battery cells B101 are connected in series to one backup battery B202 are respectively connected, and switches S201 and S202 are installed in each backup battery connection line. The switching element T201 is installed between each backup battery connection line to store surplus energy in the backup battery when the voltage of a specific cell is higher than that of other cells, and the backup battery when the voltage of a specific cell is lower than that of other cells. It is possible to transfer the renewable energy from, and when the voltage of the specific cell (B201) is higher than the cells and the renewable energy stored in the backup battery is saturated, it is possible to equalize each cell by transferring energy to the other cells. Equal energy backup device for a battery cell for a hybrid electric vehicle.
KR1020060130175A 2006-12-19 2006-12-19 Uniform energy-backup device of battery cell for hybrid electric vehicle KR100815431B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020060130175A KR100815431B1 (en) 2006-12-19 2006-12-19 Uniform energy-backup device of battery cell for hybrid electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060130175A KR100815431B1 (en) 2006-12-19 2006-12-19 Uniform energy-backup device of battery cell for hybrid electric vehicle

Publications (1)

Publication Number Publication Date
KR100815431B1 true KR100815431B1 (en) 2008-03-20

Family

ID=39411217

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060130175A KR100815431B1 (en) 2006-12-19 2006-12-19 Uniform energy-backup device of battery cell for hybrid electric vehicle

Country Status (1)

Country Link
KR (1) KR100815431B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013047973A1 (en) * 2011-09-29 2013-04-04 에스케이씨앤씨 주식회사 Power supply device for cell balancing using outer battery cells and cell balancing method thereof
KR101251180B1 (en) 2008-12-19 2013-04-08 닛산 지도우샤 가부시키가이샤 Voltage balancing device for secondary battery system
WO2014036042A1 (en) * 2012-08-27 2014-03-06 Aleksandar Prodic Assisting converter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040073121A (en) * 2003-02-13 2004-08-19 넥스콘 테크놀러지 주식회사 Uniform charging device of battery cell
KR200359024Y1 (en) * 2004-05-10 2004-08-21 주식회사 코캄엔지니어링 Battery charger capable of individual charging

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040073121A (en) * 2003-02-13 2004-08-19 넥스콘 테크놀러지 주식회사 Uniform charging device of battery cell
KR200359024Y1 (en) * 2004-05-10 2004-08-21 주식회사 코캄엔지니어링 Battery charger capable of individual charging

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101251180B1 (en) 2008-12-19 2013-04-08 닛산 지도우샤 가부시키가이샤 Voltage balancing device for secondary battery system
WO2013047973A1 (en) * 2011-09-29 2013-04-04 에스케이씨앤씨 주식회사 Power supply device for cell balancing using outer battery cells and cell balancing method thereof
WO2014036042A1 (en) * 2012-08-27 2014-03-06 Aleksandar Prodic Assisting converter
US8779700B1 (en) 2012-08-27 2014-07-15 Sendyne Corporation Assisting converter

Similar Documents

Publication Publication Date Title
US8933667B2 (en) Apparatus and method for controlling connection of battery packs
US9136715B2 (en) Rechargeable battery pack and method of charge/discharge equalizing
KR101632694B1 (en) Battery cell voltage balancing apparatus and method
EP3314718B1 (en) Battery balancing circuit
CN114709896A (en) Battery charging and discharging system based on reconstruction and charging and discharging control method
JP2018530305A (en) Battery pack management apparatus and method
JP2012023802A (en) Energy storage device
JP2022532515A (en) Battery system and how to control the battery system
US9276415B2 (en) Charging station having battery cell balancing system
KR20160132633A (en) Battery system and control method for connection of the same
JP7136424B2 (en) Apparatus and method for controlling turn-on operation of switch unit included in parallel multi-battery pack
KR100815431B1 (en) Uniform energy-backup device of battery cell for hybrid electric vehicle
JP3419115B2 (en) Battery charge / discharge protection device
JP2020503834A (en) Improved circuit for bidirectional lossless balancing of series battery packs based on inductive energy storage
CN102832666A (en) Inductive energy storage based series battery pack discharging balancing circuit
CN106786865B (en) Capacitive energy storage-based serial battery pack bidirectional lossless equalization circuit
KR102644584B1 (en) Circuit control methods, batteries and their controllers and management systems, electrical devices
CN106602647B (en) Parallel battery pack bidirectional lossless equalization circuit based on capacitive energy storage
CN205407296U (en) Complementary equalizer circuit of group battery
US9614255B2 (en) Acid/alkaline hybrid resonance battery device with damping function
TWI655120B (en) Active discharge balance extended range device using regenerative energy and method thereof
KR101423703B1 (en) Battery Charge Equalizer System and Method Thereof
CN220711161U (en) Dynamic balancing system for lithium battery
Bairwa et al. Modeling of low cost battery charge controller for stationary to mobile applications
CN202749869U (en) Series battery discharge equalization circuit based on inductive energy storage

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130305

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20140305

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20150312

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee