BMW battery system

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1.MinE

Battery pack: 35kWh (29kWh available)

Voltage: 390V

Thermal Management: Air Cooling

Number of monomers: 5088 monomers / 42 modules

Maximum charging current: input 230/50A, conversion is about 30A.

Supplier: E-One Moli Energy Corp

Source:MINI E PROGRAM

2.ACTIVE E

Battery pack: 32kWh

Voltage: 255V

Thermal Management: Liquid Cooling

Number of monomers: 192 monomer 40Ah/25 module

Peak current: 400A (motor is 125/170KW)

Maximum charging current: Input 230/32A.

Weight: 450 kg

Supplier: SB LiMotive

Data from: Active E Technical Data

Concept map by Real-World Experience with Electric Driving

The layout is from the BMW ActiveE Emergency Responder Guide

Physical map by VORSTELLUNGEN UND ERWARTUNGEN AUS SICHT DER AUTOMOBILINDUSTRIE

Battery Management System (Preh)

1.Passive Balancing

2. Functional division

Cell Supervising Sensor Units (CSSU) :monitor the cell voltage and temperature

Battery Management Unit (BMU): process the collected data