来源： 发布时间：2020/09/10点击数：2976
Introduction
Outstanding performance of Tesla Model 3 has been fueling tremendous interest in EV/HEV engineering community. Thanks to Ingineerix’s videos, we are able to see the beauty underneath now!
To take a closer look at the technologies used, we have extracted the most important frames from the videos. All key components mentioned in the videos are labeled on the pictures.
The videos didn’t point out the circuit topologies used. The following topologies are listed based on our best understanding:
Inverter:SiC-based three-half-bridge traditional inverter( not a 3-level one)
Traction Motor: Permanent magnet switched reluctance motor
PFC of OBC: SiC-based three-half-bridge boost converter
(Not a Vienna rectifier, since the output caps were not arranged in a voltage divider. Another reason is that only traditional 3-phase PFC can take single phase input)
DC/DC of OBC: three-phase LLC (with very little output caps )
12V battery charger: single-phase LLC
Main Spec and Devices Used
The inverter is part of the drive unit and it takes up to 500 amps of 400 volt DC power from the battery and makes 3-phase AC power for the motor. Maximum output power: 300kW. Battery: 80kWh .Here is the list of major components:
SiC FETS: ST GK026 (24)
Gate Drivers: STGAP1AS (6)
MCU: TI TMS320F28377DPTPQ
Resolver Amp: ON Semi TCA0372BDW
Temp Amp: TI LMV844
EEPROM: Microchip 25LC256E
CAN Transceiver: TI SN65HVD1040A (2)
LIN Transceiver: NXP TJA1021
HV Sense: Broadcom ACPL-C87BT-000E
DC-DC Power: Infineon TLF35584QVVS2
DC-DC Transformer: TDK VGT22EPC-222S6A12
Here is an image showing how the SiC MOSFETs are mounted to the cold plate and how they are connected:
https://ibb.co/dfvktz
Here is the internal structure:
https://ibb.co/cphemK
Ingineerix videos:
https://www.youtube.com/watch?v=l6dV2re3rtM
https://www.youtube.com/watch?v=3ARHdRwfxjY
https://www.youtube.com/watch?v=m4eQ7nN_Lwo https://www.youtube.com/watch?v=ANLPPKRwiyQ
Tesla Model 3 - Inverter
Tesla Model 3- Driver Unit
Tesla Model 3 – PCS ( OBC + DC/DC) 20kW
