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특허 상세정보

State of charge indicator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02J-007/00    G01N-027/416   
미국특허분류(USC) 32/0132 ; 32/443.2 ; 32/443.3
출원번호 US-0311884 (1999-05-14)
우선권정보 JP-0132183 (1998-05-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Foley & Lardner
인용정보 피인용 횟수 : 29  인용 특허 : 7
초록

A state of charge indicator of a lithium ion battery computes a state of charge (SOC) corresponding to a cell open circuit voltage from a SOC-cell open circuit voltage characteristic map, and displays the SOC on a display device. Herein, the SOC-cell open circuit voltage characteristics are obtained by defining the battery charge amount when the open circuit voltage of the cell is 3.9 V as SOC=100%, and defining the battery charge amount when the open circuit voltage of the cell is 3.5 V as SOC=100%. By defining SOC=100% and SOC=0% in this way, the SOC c...

대표
청구항

[ What is claimed is:] [1.] A state of charge indicator for a battery comprising plural cells connected in series, the indicator comprising:a display device;a sensor which detects an open circuit voltage of the battery;a sensor which detects a charging/discharging current of the battery; anda microprocessor programmed to:compute an open circuit voltage of a cell based on the detected battery open circuit voltage;compute an SOC (state of charge) corresponding to the computed cell open circuit voltage from an SOC-cell open circuit voltage characteristic ma...

이 특허를 인용한 특허 피인용횟수: 29

  1. Majima, Yoshihide. Apparatus and method for detecting a status of a secondary battery connected to a load. USP2012078234087.
  2. Kang, Jung-Soo; Jung, Jong-Mo. Apparatus and method for managing battery system. USP2015129222985.
  3. Baba, Atsushi; Adachi, Shuichi. Battery SoC estimation device. USP2016059329240.
  4. Murase, Hiroaki; Muto, Kazuhiro. Battery control apparatus, vehicle, and battery control method. USP2015018928281.
  5. Denning,Bruce S.. Battery gas gauge. USP2006087095211.
  6. Lim, Gye Jong; Choi, Soo Seok; Lee, Young Jo; Tae, Yong Jun; Yun, Han Seok; Seo, Se Wook; Kim, Beom Gyu; Park, Ho Young. Battery management system (BMS) and driving method thereof. USP2009127634369.
  7. Lim, Gye-Jong; Choi, Soo-Seok; Lee, Young-Jo; Tae, Yong-Jun; Yun, Han-Seok; Seo, Se-Wook; Kim, Beom-Gyu; Park, Ho-Young. Battery management system (BMS) and driving method thereof. USP2010037680613.
  8. Yun, Han-Seok; Seo, Se-Wook; Lim, Gye-Jong. Battery management system and battery management method. USP2011027880432.
  9. Seo, Se-Wook. Battery management system and driving method for cutting off and coupling battery module from/to external device. USP2010037679325.
  10. Lim, Gye-Jong; Choi, Soo-Seok; Lee, Young-Jo; Tae, Yong-Jun; Yun, Han-Seok; Seo, Se-Wook; Kim, Beom-Gyu; Park, Ho-Young. Battery management system and driving method thereof. USP2014088796986.
  11. Seo, Se-Wook; Choi, Soo-Seok. Battery management system and driving method thereof. USP2010027656124.
  12. Tae, Yong-Jun; Choi, Soo-Seok; Lee, Young-Jo; Yun, Han-Seok; Seo, Se-Wook; Lim, Gye-Jong; Kim, Beom-Gyu; Park, Ho-Young. Battery management system and driving method thereof. USP2010017652449.
  13. Seo, Se-Wook; Lee, Young-Jo; Tae, Yong-Jun; Yun, Han-Seok; Lim, Gye-Jong; Kim, Beom-Gyu. Battery pack that provides precise voltage measurements of batteries when safety switch is present. USP2011098013573.
  14. Majima, Yoshihide. Battery status detecting method and battery status detecting apparatus. USP2013028378638.
  15. Christensen, John F.; Ahmed, Jasim. Battery system and method for system state of charge determination. USP2015059030169.
  16. Yoshiaki Omata JP; Kazuhiko Morimoto JP. Control apparatus for hybrid vehicle. USP2002106469403.
  17. Yamamoto, Masaya; Seta, Itaru. Display system for electrically powered vehicle and electrically powered vehicle having the same. USP2017099758050.
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  19. Palanisamy,Thirumalai G.; Singh,Harmohan N.; Atehortua,Hector M.; Hoenig,Steven. Method and apparatus for determining the available energy of a lithium ion battery. USP2007077248022.
  20. Lim, Jae Hwan; Han, Se Kyung. Method for balancing of high voltage battery pack. USP2014028648570.
  21. Ueda, Toshifumi; Morishita, Nobuyasu. Method for controlling battery charge and discharge. USP2003126661201.
  22. Gerolf Richter DE; Eberhard Meissner DE. Method for determining the state of charge of storage batteries. USP2002056388450.
  23. Redmann, Jr., Jerry L.; Werner, Matthew L.; Koff, Garry A.. Power source monitoring system for AGVs and method. USP2011027890228.
  24. Borroni-Bird, Christopher E.; Mercurio, Joseph F.. Regenerative braking halo and method. USP2010077750796.
  25. Nakamura, Masashi; Hasegawa, Hidefumi. Secondary battery state of charge determination apparatus, and method of determining state of charge of secondary battery. USP2016029263773.
  26. Teruo, Ishishita. State of charge calculation device and state of charge calculation method. USP2005016845332.
  27. Boehm, Andre; Liedtke, Ralf; Kern, Rainer. State of charge determination for an electrical accumulator. USP2016099450427.
  28. Ashizawa,Hiroyuki; Nakamura,Hideo; Asai,Hisafumi. State-of-charge estimating device of secondary battery. USP2008047352156.
  29. Ogane, Takashi; Maruno, Naoki; Ohnuma, Yoshikazu. Storage capacity management system. USP2015028947051.