Tesla Model 3 Rear Drive Unit: Difference between revisions

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|(ASY,M3,REAR,MOSFET-LC,GLOBAL) - newer AWD motor
|(ASY,M3,REAR,MOSFET-LC,GLOBAL) - newer AWD motor
|600A
|600A
|Model 3 / Model Y
|-
|1120990-00-H
|(ASY,M3,REAR,MOSFET-LC,GLOBAL) - newer AWD motor 2021 with few hints on it's actual existence ([2])
|???A
|Model 3 / Model Y
|-
|1120990-00-J
|(ASY,M3,REAR,MOSFET-LC,GLOBAL) - current (Jan 2022) AWD (EPC [3])
|???A
|Model 3 / Model Y
|Model 3 / Model Y
|-
|-
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|}
|}


Details from https://www.reddit.com/r/teslamotors/comments/ioat3d/rear_motor_efficiency_improvements_980_vs_990/.
[1] Details from https://www.reddit.com/r/teslamotors/comments/ioat3d/rear_motor_efficiency_improvements_980_vs_990/. <br>
[2] https://www.ebay.de/itm/185026392386 <br>
[3] https://epc.tesla.com/en/catalogs/138/categories/10030/subcategories/42427


== Connectors and Pinouts ==
== Connectors and Pinouts ==
Line 49: Line 61:
!Pins
!Pins
!Compatible Plugs
!Compatible Plugs
!Link
|-
|-
|?
|X090
|Inverter connector
|Inverter connector
|30
|30
|Tesla 1108960-00-8 (proprietary?)
|Toyota 90980-12712 (Sumitomo 6189-6987)
|
|-
|-
|?
|?
Line 59: Line 73:
|10 (8 connected)
|10 (8 connected)
|TE Connectivity 1-2282337-1
|TE Connectivity 1-2282337-1
|
|-
|-
|?
|?
Line 64: Line 79:
|3
|3
|TE Connectivity 1-1718644-1
|TE Connectivity 1-1718644-1
|
|-
|?
|HV connector
|2
|TE Connectivity HC-STAK 90° 2840900-1
|[https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Specification+Or+Standard%7F114-162001%7FJ%7Fpdf%7FEnglish%7FENG_SS_114-162001_J.pdf%7F2840900-1 TE  Product Application]
|}
|}
== Power Figures ==
Taken from tesla:
==== RWD Variant ====
Voltage: 350v
Max Power: 239 KW @ 5525 rpm
Max Torque: 420 nm @ 325-5200 rpm
==== AWD Variant ====
Voltage: 335v
Max Power: 203 KW @ 6700 rpm
Max Torque: 330 nm @ 325-5200 rpm
==== Performance Variant ====
Voltage: 320v
Max Power: 219 KW @ 5075 rpm
Max Torque: 420 nm @ 325-4800 rpm


== Mechanical Specification ==
== Mechanical Specification ==
Line 79: Line 125:
Gearbox Ratio: (81/31) * (83/24) = 9.036
Gearbox Ratio: (81/31) * (83/24) = 9.036


Details from https://www.youtube.com/watch?v=SRUrB7ruh-8.
Weight: 80 kg
 
Dimensions approx: 676 x 554 x 353 mm
 
Details from https://www.youtube.com/watch?v=SRUrB7ruh-8 & https://eveurope.eu/en/product/tesla-model-3-rwd-drive-kit.


== Inverter Components ==
== Inverter Components ==
Line 94: Line 144:
|SiC FET drive transistors
|SiC FET drive transistors
|24
|24
|?
|https://www.st.com/en/power-transistors/sctw100n65g2ag.html (?)
|-
|-
|ST
|ST
Line 101: Line 151:
|6
|6
|https://www.st.com/en/power-management/stgap1as.html
|https://www.st.com/en/power-management/stgap1as.html
|-
|ST
|STD46P4LLF6
|P-channel Power MOSFET 40V
|6
|https://www.st.com/en/power-transistors/std46p4llf6.html
|-
|Infineon
|3N0408
|N-channel Power Transistor
|6
|
|-
|-
|TI
|TI
Line 158: Line 220:
|}
|}
Details from https://www.youtube.com/watch?v=l6dV2re3rtM.
Details from https://www.youtube.com/watch?v=l6dV2re3rtM.
== Oil specification ==
There are two variants of rear drive unit in terms of oil. One where the oil is also inside the motor and one where it isn't. Where the gear oil is also inside the motor the oil will be black in colour. In this case FUCHS BluEV EDF 7005 oil is required, not using this oil will degrade the motor and cause failure in the long term.
[[Category:Tesla]]
[[Category:Motor]]
[[Category:Inverter]]
[[Category:Gearbox]]

Latest revision as of 10:11, 8 April 2025

External Documentation

Tesla Model 3 Rear Drive Unit Hacking (forum thread)

https://github.com/damienmaguire/Tesla-Model-3-Drive-Unit (Hardware and reverse engineering details)

https://github.com/jsphuebner/stm32-sine/tree/tesla-m3-gate-driver (STM32 "modboard" firmware dev. branch)

Part Numbers

Part Number Description Max Current Cars
1120970-00-F (ASY,M3,3DU,REAR,IGBT) - original RWD and/or "binned" Perf 800A Model 3
1120980-00-G (ASY,M3,REAR 3DU,MOSFET,GLOBAL) - early AWD motor 800A Model 3 / Model Y
1120990-00-G (ASY,M3,REAR,MOSFET-LC,GLOBAL) - newer AWD motor 600A Model 3 / Model Y
1120990-00-H (ASY,M3,REAR,MOSFET-LC,GLOBAL) - newer AWD motor 2021 with few hints on it's actual existence ([2]) ???A Model 3 / Model Y
1120990-00-J (ASY,M3,REAR,MOSFET-LC,GLOBAL) - current (Jan 2022) AWD (EPC [3]) ???A Model 3 / Model Y
1521365-00-B (ASY, REMAN, 3DU-Rear 800 MOSFET) - Remanufactured 1120980-00-G 800A Model 3 / Model Y
1521487-00-A (ASY, REMAN, 3DU-REAR 630 MOSFET) - Remanufactured 1120990-00-G 600A Model 3 / Model Y

[1] Details from https://www.reddit.com/r/teslamotors/comments/ioat3d/rear_motor_efficiency_improvements_980_vs_990/.
[2] https://www.ebay.de/itm/185026392386
[3] https://epc.tesla.com/en/catalogs/138/categories/10030/subcategories/42427

Connectors and Pinouts

Label Description Pins Compatible Plugs Link
X090 Inverter connector 30 Toyota 90980-12712 (Sumitomo 6189-6987)
? Rotor Shaft Resolver 10 (8 connected) TE Connectivity 1-2282337-1
? Oil Pump 3 TE Connectivity 1-1718644-1
? HV connector 2 TE Connectivity HC-STAK 90° 2840900-1 TE Product Application

Power Figures

Taken from tesla:

RWD Variant

Voltage: 350v

Max Power: 239 KW @ 5525 rpm

Max Torque: 420 nm @ 325-5200 rpm

AWD Variant

Voltage: 335v

Max Power: 203 KW @ 6700 rpm

Max Torque: 330 nm @ 325-5200 rpm

Performance Variant

Voltage: 320v

Max Power: 219 KW @ 5075 rpm

Max Torque: 420 nm @ 325-4800 rpm

Mechanical Specification

Max rotor speed: 18,447 rpm

Input shaft gear: 31 teeth

Counter shaft input: 81 teeth

Counter shaft output: 24 teeth

Ring gear: 83 teeth

Gearbox Ratio: (81/31) * (83/24) = 9.036

Weight: 80 kg

Dimensions approx: 676 x 554 x 353 mm

Details from https://www.youtube.com/watch?v=SRUrB7ruh-8 & https://eveurope.eu/en/product/tesla-model-3-rwd-drive-kit.

Inverter Components

Manufacturer Part No Description Quantity Datasheet
ST ST GK026 SiC FET drive transistors 24 https://www.st.com/en/power-transistors/sctw100n65g2ag.html (?)
ST STGAP1AS Gate Drivers 6 https://www.st.com/en/power-management/stgap1as.html
ST STD46P4LLF6 P-channel Power MOSFET 40V 6 https://www.st.com/en/power-transistors/std46p4llf6.html
Infineon 3N0408 N-channel Power Transistor 6
TI TMS320F28377DPTPQ C2000 Delfino MCU 1 TMS320F2837xD Dual-Core Microcontrollers Datasheet

TMS320F2837xD Dual-Core Microcontrollers Technical Reference Manual

On Semi TCA0372BDW Resolver amplifier 1 https://www.onsemi.com/pdf/datasheet/tca0372-d.pdf
TI LMV844 Temperature sensor amplifier 1 https://www.ti.com/lit/gpn/lmv844
Microchip 25LC256E EEPROM 1 http://ww1.microchip.com/downloads/en/DeviceDoc/20005715A.pdf
TI SN65HVD1040A CAN Transceiver 2 https://www.ti.com/lit/ds/symlink/sn65hvd1040a-q1.pdf
NXP TJA1021 LIN Transceiver 1 https://www.nxp.com/docs/en/data-sheet/TJA1021.pdf
Broadcom ACPL-C87BT-000E DC HV sense 1 https://docs.broadcom.com/docs/AV02-3564EN
Infineon TLF35584QVVS2 DC-DC Power and system watchdog 1 https://uk.farnell.com/infineon/tlf35584qvvs1xuma2/multi-volt-pwr-supply-ic-40-to/dp/3155085
TDK VGT22EPC-222S6A12 DC-DC Transformer (gate drive?) 1 https://product.tdk.com/en/search/transformer/transformer/gate-drive/info?part_no=VGT22EPC-200S6A12

Details from https://www.youtube.com/watch?v=l6dV2re3rtM.


Oil specification

There are two variants of rear drive unit in terms of oil. One where the oil is also inside the motor and one where it isn't. Where the gear oil is also inside the motor the oil will be black in colour. In this case FUCHS BluEV EDF 7005 oil is required, not using this oil will degrade the motor and cause failure in the long term.

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