KR20130121143A - 전지 상태 추정 방법 및 전지 관리 시스템 - Google Patents
전지 상태 추정 방법 및 전지 관리 시스템 Download PDFInfo
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Abstract
Description
도 2는 전지 관리 시스템에 있어서의 처리를 설명하는 플로우 차트.
도 3은 전류치의 변화와, 산출되는 충전율의 오차의 관계를 모식적으로 나타내는 도면.
도 4는 전지의 회로 모델의 일례를 나타내는 도면.
도 5는 스텝 S22의 상세 처리의 일례를 나타내는 플로우 차트.
도 6은 충전율 계산 조건 판정 처리를 설명하는 도면.
도 7은 개방 전압-충전율(SOC) 맵의 일례를 나타낸 것.
도 8은 개방 전압-SOC의 그래프를 나타내는 도면.
도 9는 SOC·전하 축적부(14)에 있어서의 테이블을 나타내는 도면.
도 10은 만충전 용량을 구하는 방법을 설명하는 도면.
도 11은 표시부(19)의 표시예를 나타내는 도면.
도 12는 2직렬의 전지가 2병렬된 합계 4개가 접속되어 있을 경우에 시스템 구성을 나타내는 도면.
도 13은 전지를 직병렬했을 경우의, 표시부(913)에 있어서의 표시예를 나타내는 도면.
도 14는 본 실시형태에 따른 전지 관리 시스템이 적용되는 차량용 회전 전기(電機)의, 구동 시스템을 나타내는 블록도.
Claims (13)
- 전지 충방전시의 전지의 전류치 및 단자 전압치를 계측하고, 계측된 전류치 및 단자 전압치에 의거하여, 전지 상태로서의 충전율, 열화도(劣化度) 및 만충전 용량 중 적어도 하나를 산출하는 전지 상태 추정 방법으로서,
상기 계측된 전류치의 1초당의 변화가 소정치 이상이었을 경우에는, 상기 전류 변화의 발생으로부터 소정 시간이 경과할 때까지의 기간에 계측된 전류 및 단자 전압은 사용하지 않고, 상기 기간 이외의 전지 충방전 기간에 있어서 계측된 전류치 및 단자 전압치에 의거하여, 상기 전지의 충전율, 열화도 및 만충전 용량 중 적어도 하나를 산출하는 전지 상태 추정 방법. - 전지의 전류치를 검출하는 전류 검출부와,
전지의 단자 전압치를 검출하는 전압 검출부와,
상기 전류 검출부에서 검출된 전류치의 1초당의 변화가 소정치 이상인 전류 변화를 검출하는 전류 변화 검출부와,
상기 전류 변화 검출부에 의한 전류 변화의 검출시로부터 소정 시간이 경과할 때까지의 기간에 검출된 전류치 및 단자 전압치는 사용하지 않고, 상기 기간 이외의 전지 충방전 기간에 있어서 검출된 전류치 및 단자 전압치에 의거하여, 전지 상태로서의 충전율, 열화도 및 만충전 용량 중 적어도 하나를 산출하는 전지 상태 산출부를 구비하는 전지 관리 시스템. - 제2항에 있어서,
상기 소정 시간에, 상기 전지의 분극 시정수 중 가장 작은 분극 시정수, 또는, 2초를 이용한 전지 관리 시스템. - 제2항 또는 제3항에 있어서,
방전율로 0.1C에 상당하는 전류치를, 상기 1초당의 전류치의 변화로서 이용한 전지 관리 시스템. - 제2항 내지 제4항 중 어느 한 항에 있어서,
상기 전지 상태 산출부에서 산출된 상기 전지 상태를 표시하는 표시 장치를 구비한 전지 관리 시스템. - 제2항 내지 제4항 중 어느 한 항에 있어서,
상기 전지 상태 산출부에서 산출된 충전율 중, 현시점으로부터 과거로 거슬러 올라간 소정수 이내의 충전율이 축적되는 축적부를 구비하고,
상기 전지 상태 산출부에 의한 상기 만충전 용량의 산출이, 상기 축적부에 축적되어 있는 충전율의 최대치와 최소치의 차이가 소정 충전율차 이상일 경우에 행해지는 전지 관리 시스템. - 제6항에 있어서,
상기 소정 충전율차를 15%로 한 전지 관리 시스템. - 제6항 또는 제7항에 있어서,
상기 전지 상태 산출부에서 산출된 상기 전지 상태를 표시하는 표시 장치를 구비하고,
상기 표시 장치는,
상기 전지 상태 산출부에 의해 충전율이 산출되면, 충전율의 표시를 산출된 충전율로 갱신하고,
상기 충전율에 대응한 상기 만충전 용량의 산출이 행해지고 있지 않을 경우에는, 직전에 산출된 만충전 용량 및 당해 만충전 용량에 의거하는 전지의 열화도를 표시하는 전지 관리 시스템. - 제8항에 있어서,
상기 직전에 산출된 만충전 용량 및 당해 만충전 용량에 의거하는 전지의 열화도를 표시할 경우에는, 만충전 용량 및 열화도의 표시 형태를, 상기 충전율에 대응한 만충전 용량을 표시할 경우의 표시 형태와 다르게 한 전지 관리 시스템. - 제2항에 있어서,
상기 전지는 복수의 전지 셀로 이루어지고,
상기 전지 상태 검출부는, 전지의 충전율, 열화도 및 만충전 용량 중 적어도 하나를 상기 복수의 전지 셀의 각각에 대해서 산출하는 전지 관리 시스템. - 제2항에 있어서,
상기 전지는, 복수의 전지 셀로 이루어지는 전지 블록을 복수 구비하고,
상기 전지 상태 검출부는, 전지의 충전율, 열화도 및 만충전 용량 중 적어도 하나를 상기 복수의 전지 블록의 각각에 대해서 산출하는 전지 관리 시스템. - 제10항 또는 제11항에 있어서,
상기 복수의 전지의 접속에 적어도 직렬 접속이 포함되고,
상기 전류치 및 단자 전압치의 검출이 상기 직렬 접속된 복수의 전지 사이에서 같은 시기에 행해지도록, 상기 전류 검출부에 의한 검출 및 상기 전압 검출부에 의한 각 전지의 검출을 각각 동기시키는 동기 장치를 구비한 전지 관리 시스템. - 제11항에 있어서,
상기 전지 상태 산출부에서 산출된 상기 전지 상태를 표시하는 표시 장치를 구비하고,
상기 표시 장치는, 상기 전지 상태 산출부에서 산출된 상기 전지 상태를 상기 복수의 전지 블록마다 표시하는 전지 관리 시스템.
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| TWI912041B (zh) * | 2024-12-03 | 2026-01-11 | 連恩微電子股份有限公司 | 電池系統之製造方法 |
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-
2011
- 2011-03-07 CN CN2011800684392A patent/CN103392133A/zh active Pending
- 2011-03-07 US US14/000,030 patent/US20130320989A1/en not_active Abandoned
- 2011-03-07 KR KR1020137019499A patent/KR20130121143A/ko not_active Ceased
- 2011-03-07 WO PCT/JP2011/055251 patent/WO2012120620A1/ja not_active Ceased
- 2011-03-07 EP EP11860301.8A patent/EP2685269A4/en not_active Withdrawn
- 2011-03-07 JP JP2013503262A patent/JPWO2012120620A1/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014085499A1 (en) * | 2012-11-30 | 2014-06-05 | Tesla Motors, Inc. | Transient detection of an exceptional charge event in a series connected battery element |
| US9318901B2 (en) | 2012-11-30 | 2016-04-19 | Tesla Motors, Inc. | Response to detection of an overdischarge event in a series connected battery element |
| US9343911B2 (en) | 2012-11-30 | 2016-05-17 | Tesla Motors, Inc. | Response to detection of an overcharge event in a series connected battery element |
| US9529048B2 (en) | 2012-11-30 | 2016-12-27 | Tesla Motors, Inc. | Transient detection of an exceptional charge event in a series connected battery element |
| US9588187B2 (en) | 2014-04-21 | 2017-03-07 | Samsung Electronics Co., Ltd. | Method and apparatus for estimating battery life during driving of electrical vehicle (EV) |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2012120620A1 (ja) | 2014-07-07 |
| EP2685269A4 (en) | 2014-09-03 |
| WO2012120620A1 (ja) | 2012-09-13 |
| US20130320989A1 (en) | 2013-12-05 |
| EP2685269A1 (en) | 2014-01-15 |
| CN103392133A (zh) | 2013-11-13 |
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