BMW 3 Owners & Service Manuals

BMW 3: High-voltage Battery Unit

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 Overview

With the G20 PHEV the already familiar Generation 4.0 high-voltage battery unit with the designation SP41 is used. The lithium-ion battery has the same basic design as the Generation 3.0 SP06 high-

 Technical data

The high-voltage battery unit of the G20 PHEV is manufactured by BMW itself in Dingolfing /Germany. The cells of the high-voltage battery unit are supplied by the Korean company Samsung SDI. T

 Equipotential bonding

The low-resistance connection between the housing of the high-voltage battery unit and ground is a crucial prerequisite for the fault-free function of the integrated isolation monitoring. This is wh

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 High-voltage cables

The high-voltage cables connect the high-voltage components and are identified by orange cable sleeves. The manufacturers of hybrid cars have agreed on a uniform identification of the high-voltage cable with the orange warning color. An overview of the high-voltage cables used in the G20 PHE

 Sensors

Sensors, electrical machine Temperature sensor Rotor of the rotor position sensor Stator of the rotor position sensor So that the voltages for the coils in the stator can be correctly calculated and generated by the Electrical Machine Electronics in terms of amplitude and phase layer, the pr

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