Tesla Model 3 and Y Modular Motors
Check out the modular components and design of the electric motors on the Tesla Models 3 and Y. See how many parts are common and interchangeable.
Corrections:
1. I swapped the definition of a Hunting gear set with a Non-Hunting gear set.
TIMELINE:
0:00 Introduction
0:27 The rear motor of the Model 3 and Y
1:08 The input shaft with 31 teeth (Prime Number)
2:00 the input shaft SKF bearings for a rotor speed of 18,447 at 262 km/h (163 mph)
2:40 The countershaft and gear with 81 teeth (Factors 3, 3, 3, 3)
3:00 The input shaft to the countershaft gear ratio of 81/31 = 2.6129:1
3:10 The countershaft pinion gear with 24 teeth (Factors 2, 2, 2, 3)
3:15 The ring gear and differential case with 83 teeth (Prime Number)
4:30 The countershaft to ring gear ratio of 83/24 = 3.4583:1
4:43 The overall gear ratio = (81/31) x (83/24) = 9.0363:1
5:03 The published gear ratio is incorrect. This is a Hunting Gearset
5:48 The CV half-shafts connect to the differential side gears
6:46 MUST SEE: two cool Permanent Magnet rotor demonstrations
8:05 The modular design of the motor shafts and rotors
8:25 MUST SEE: Watch as a rear motor is changed into a front motor
10:32 The differences in the modular motors
11:35 See what a permanent magnet does to the Induction Rotor
11:55 An aluminum core front induction rotor on the Model Y
12:13 There are at least three different rotors for the Models 3 and Y
13:54 See the rear motor inverter and where it attaches to the rear housing
14:45 The matching part numbers of the rear inverter and the stator (A matched set)
15:15 The three different power and torque levels of the Model 3 and Model Y
16:15 MUST SEE: See the front motor inverter attached to the rear housing!
17:37 the common bolt pattern and opening for the stator housings
18:30 The oil-cooled stator and ATF-9 fluid
18:47 The interchangeable transmission heat exchanger
19:13 The interchangeable variable speed electric oil pump
20:25 The interchangeable spin-on oil filter
21:06 What is not interchangeable between models
21:20 The rear drive-unit is mounted parallel with the ground
22:20 The front drive-unit is mounted upside down and on an angle
23:05 The matching part numbers of the front inverter and the stator (A matched set)
26:30 Additional EV training opportunities at https://www.weber.edu/evtraining
26:58 Video summary and donation opportunity
I have nothing to prove this, but while looking at used Model 3 motors for sale on eBay, I gathered the following information. There are three different part numbers for the combined rear motor inverters and stators. Stators can have different milli-ohm resistance values and still appear identical.
* 1120970-00-D (24 SiC IGBT modules Based RWD model 3)
* 1120980-00-C, D, F (24 SiC MOSFET modules Performance AWD model 3)
* 1120990-00-F (18 SiC MOSFET modules Non-Performance AWD model 3)
ABOUT US
Weber State University (WSU) Davis Campus - Automotive Technology Department - Advanced Vehicles Lab. A technical description and operational demonstration of the Tesla Model S Rear Drive Unit (RDU) and Fear Drive Unit (FDU).
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information visit: http://www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...
Visit my other youtube channel vibratesoftware to see the amazing NVH app for vibration diagnosis!
ADDITIONAL TRAINING FOR YOU
Join us for hybrid and electric vehicle training with two online courses and in a 5-day on-campus boot camp with Professor John D. Kelly. See http://www.weber.edu/evtraining
DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/Automotive
QUESTIONS FOR TEACHERS
1.
Corrections:
1. I swapped the definition of a Hunting gear set with a Non-Hunting gear set.
TIMELINE:
0:00 Introduction
0:27 The rear motor of the Model 3 and Y
1:08 The input shaft with 31 teeth (Prime Number)
2:00 the input shaft SKF bearings for a rotor speed of 18,447 at 262 km/h (163 mph)
2:40 The countershaft and gear with 81 teeth (Factors 3, 3, 3, 3)
3:00 The input shaft to the countershaft gear ratio of 81/31 = 2.6129:1
3:10 The countershaft pinion gear with 24 teeth (Factors 2, 2, 2, 3)
3:15 The ring gear and differential case with 83 teeth (Prime Number)
4:30 The countershaft to ring gear ratio of 83/24 = 3.4583:1
4:43 The overall gear ratio = (81/31) x (83/24) = 9.0363:1
5:03 The published gear ratio is incorrect. This is a Hunting Gearset
5:48 The CV half-shafts connect to the differential side gears
6:46 MUST SEE: two cool Permanent Magnet rotor demonstrations
8:05 The modular design of the motor shafts and rotors
8:25 MUST SEE: Watch as a rear motor is changed into a front motor
10:32 The differences in the modular motors
11:35 See what a permanent magnet does to the Induction Rotor
11:55 An aluminum core front induction rotor on the Model Y
12:13 There are at least three different rotors for the Models 3 and Y
13:54 See the rear motor inverter and where it attaches to the rear housing
14:45 The matching part numbers of the rear inverter and the stator (A matched set)
15:15 The three different power and torque levels of the Model 3 and Model Y
16:15 MUST SEE: See the front motor inverter attached to the rear housing!
17:37 the common bolt pattern and opening for the stator housings
18:30 The oil-cooled stator and ATF-9 fluid
18:47 The interchangeable transmission heat exchanger
19:13 The interchangeable variable speed electric oil pump
20:25 The interchangeable spin-on oil filter
21:06 What is not interchangeable between models
21:20 The rear drive-unit is mounted parallel with the ground
22:20 The front drive-unit is mounted upside down and on an angle
23:05 The matching part numbers of the front inverter and the stator (A matched set)
26:30 Additional EV training opportunities at https://www.weber.edu/evtraining
26:58 Video summary and donation opportunity
I have nothing to prove this, but while looking at used Model 3 motors for sale on eBay, I gathered the following information. There are three different part numbers for the combined rear motor inverters and stators. Stators can have different milli-ohm resistance values and still appear identical.
* 1120970-00-D (24 SiC IGBT modules Based RWD model 3)
* 1120980-00-C, D, F (24 SiC MOSFET modules Performance AWD model 3)
* 1120990-00-F (18 SiC MOSFET modules Non-Performance AWD model 3)
ABOUT US
Weber State University (WSU) Davis Campus - Automotive Technology Department - Advanced Vehicles Lab. A technical description and operational demonstration of the Tesla Model S Rear Drive Unit (RDU) and Fear Drive Unit (FDU).
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information visit: http://www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...
Visit my other youtube channel vibratesoftware to see the amazing NVH app for vibration diagnosis!
ADDITIONAL TRAINING FOR YOU
Join us for hybrid and electric vehicle training with two online courses and in a 5-day on-campus boot camp with Professor John D. Kelly. See http://www.weber.edu/evtraining
DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/Automotive
QUESTIONS FOR TEACHERS
1.
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