Invention Grant
- Patent Title: Method for determining the charge state of a battery pack
- Patent Title (中): 用于确定电池组的充电状态的方法
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Application No.: US13516739Application Date: 2010-10-28
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Publication No.: US08930070B2Publication Date: 2015-01-06
- Inventor: Andre Boehm , Stefan Soboll , Sven Gaebler
- Applicant: Andre Boehm , Stefan Soboll , Sven Gaebler
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Maginot, Moore & Beck LLP
- Priority: DE102009054924 20091218
- International Application: PCT/EP2010/066343 WO 20101028
- International Announcement: WO2011/079977 WO 20110707
- Main IPC: G06F11/30
- IPC: G06F11/30 ; G01N27/416 ; G01R31/36

Abstract:
A method for determining the charge state of a battery pack consisting of a number “N” of individual battery cells, includes determining the charge state of each individual battery cell SOCi for all i=1,N. The mean value of the charge states of the individual battery cells, mean (SOCi), is also determined. The method further includes determining a weighting “w” from the equation where w=gw(mean(SOCi)). The following applies for the function gw(SOC): the function value tends towards a minimum value of wmin when the argument tends toward the minimum charge state of a complete discharge SOCmin. The function value tends toward a maximum value of wmax when the argument tends towards the maximum charge state of a complete charge SOCmax; and the function gw( ) is continuous.
Public/Granted literature
- US20120330503A1 Method for Determining the Charge State of a Battery Pack Public/Granted day:2012-12-27
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