BMW Hybrid Battery Pack: Difference between revisions

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(Fixed headlines and added reference for the temperature sensor.)
(→‎Technical Specifications: Added individual module dimensions to Tech Specs)
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|Weight
|Weight
|248 lbs (without retaining brackets)
|248 lbs / 112.5 kg (without retaining brackets)
|261 lbs (without retaining brackets)
|261 lbs / 118.4kg (without retaining brackets)
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|Dimensions
|Dimensions
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|Refrigerant R1234yf
|Refrigerant R1234yf
|Refrigerant R1234yf
|Refrigerant R1234yf
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|Individual Module Dimensions
|364*183*110mm (L/W/H) without BMS attached
(add c. 25mm to length or height of module for BMS)
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|}
|}



Revision as of 12:44, 18 October 2022

In addition to the BMW 5 Series (G30) 530e the same battery pack can be found in the 7 Series (G12) 740e as well as the X Series (F15) X5. These battery packs consist of six battery modules yielding 351 volts. The same battery modules can be found in the 3 Series (F30) 330e but in a smaller form factor made up of only five modules and 293 volts.

The battery pack is located under the rear seat.

First Gen (-2018)

The Electrical Energy Storage System in the 530e as well as the 740e has a code name of SP06 and a capacity of 26 Ah.

Second Gen (2019-present)

The newer SP41 high-voltage battery was installed in the G30 as well as the G12 Plug-in Hybrid Electric Vehicles starting in July of 2019. It has the same basic design as the SP06. The most significant change is the cell capacity increase from 26 Ah to 34 Ah.

Technical Specifications

Technical data 5 Series G30 PHEV (SP06)

-2018

5 Series G30 PHEV (SP41)

2019-2022

Voltage 351.4 V (nominal voltage) 355 V (nominal voltage)
Voltage Range Min. 269 V – Max. 398 V Min. 269 V – Max. 403 V
Battery cells Lithium-ion Lithium-ion
Number of battery cells 96 in series 96 in series
Number of cell modules 6 6
Cell voltage 3.66 V 3.70 V
Capacitance 26 Ah 34 Ah
Storable amount of energy 9.2 kWh 12 kWh
Usable energy 7.4 kWh 10.4 kWh
Max. power (discharge) 83 kW (short-term) 83 kW (short-term)
Maximum power (AC charging) 3.7 kW 3.7 kW
Weight 248 lbs / 112.5 kg (without retaining brackets) 261 lbs / 118.4kg (without retaining brackets)
Dimensions 541 mm x 1134 mm x 271 mm 541 mm x 1134 mm x 271 mm
Cooling system Refrigerant R1234yf Refrigerant R1234yf
Individual Module Dimensions 364*183*110mm (L/W/H) without BMS attached

(add c. 25mm to length or height of module for BMS)

Battery Management System, BMS

There is a SimpBMS version available on GitHub called BMWPhevBMS https://github.com/Tom-evnut/BMWPhevBMS created by Tome de Bree.

Part Numbers[1]

and here's how the six cell modules are connected together with the high voltage orange wires

High Voltage Cables


#1 Part Number: 61278621016 Main Negative (runs from Cell Module #1 to the Safety Box #8 front connector)

#2 Part Number: 61278621017 Connects Cell Module #2 to Cell Module #3

#3 Part Number: 61278621018 Connects Cell Module #3 to Cell Module #4

#4 Part Number:61278621019 Connects Cell Module #4 to Cell Module #5

#? Part Number:??????????? Connects Cell Module #5 to Cell Module #6

#5 Part Number: 61278621020 Main Positive (runs from Cell Module #6 to the Safety Box #7 front connector)

#6 Part Number: 61278618444 Connects Cell Module #1 to Cell Module #2

===========================================================

#7 Part Number: 61278650791 External Connector Positive

#8 Part Number: 61278650793 External Connector Negative

Pinout - Main battery connector

Pin assignments at plug connector A332*1B

Pin Type Description /Signal type Connection /Measuring information
1 E Supply, terminal 30 Power distribution box, rear
2 E High-voltage interlock loop signal Electric-machine electronics
3 E Terminal 30c signal Connector, terminal 30C
4 -- Not used
5 -- Not used
6 -- Not used Yellow/Green wire inside battery - Use unknown
7 -- Not used
8 -- Not used
9 -- Not used
10 A Supply Refrigerant shutoff valve, high-voltage battery unit
11 A Activation Refrigerant shutoff valve, high-voltage battery unit
12 M Ground Ground point
13 E/A K-CAN bus signal L K-CAN5 bus connection
14 E/A K-CAN bus signal H K-CAN5 bus connection
15 -- K-CAN bus signal L Put a 120Ohm resistor across these to terminate pack
16 -- K-CAN bus signal H Put a 120Ohm resistor across these to terminate pack
17 -- Not used
18 -- Not used
19 -- Not used
20 -- Not used
21 -- Not used
22 -- Not used
23 E High-voltage interlock loop signal High-voltage safety connector
24 -- Not used

Temperature Sensors

The temperature sensors used in the hybrid battery packs are NTC 100k/4.4 and 10k/3.4 [2].

References