Title:
BATTERY MANAGEMENT SYSTEM, BATTERY SYSTEM, MOTOR VEHICLE AND METHOD FOR GENERATING A PERIODIC ALTERNATING VOLTAGE (BATTERY DIRECT INVERTER)
Document Type and Number:
WIPO Patent Application WO/2014/040780
Kind Code:
A3
Abstract:
The invention relates to a battery management system for a battery module bank (70-1, 70-m) having battery modules (60) that can be connected electrically positively or negatively, individually or serially, to terminals of the battery module bank (70-1, 70-m) and individually disconnected electrically. The battery module bank (70-1, 70-m) is suitable for generating an alternating voltage by disconnecting and connecting the battery modules (60). The battery management system is characterized in that it is able to assign each battery module a respective time period, during which the battery module is connected electrically during a half-period, depending on the position of said battery module in a battery module list. This permits a hierarchical arrangement of the battery modules in accordance with performance capability, for example determined by using charging state and/or state of health, and therefore permits the module loadings to be balanced out.
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Inventors:
WOLFF HANS-JOERG (DE)
PARTES HANS (DE)
FETZER JOACHIM (DE)
BUTZMANN STEFAN (DE)
PARTES HANS (DE)
FETZER JOACHIM (DE)
BUTZMANN STEFAN (DE)
Application Number:
PCT/EP2013/065139
Publication Date:
October 16, 2014
Filing Date:
July 18, 2013
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
SAMSUNG SDI CO LTD (KR)
SAMSUNG SDI CO LTD (KR)
International Classes:
H02M7/483
Domestic Patent References:
| WO2012104957A1 | 2012-08-09 |
Foreign References:
| US3867643A | 1975-02-18 | |||
| DE102010041028A1 | 2012-03-22 |
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