1:40 P610 Identification
1:50 3-Digit Code 1NM identification
2:10 Toyota New Global Architecture (TNGA) system
2:28 Transaxle weight
2:48 Transaxle width
3:47 Oil pump location
3:58 Resolver external electrical connections
4:04 Parallel Axis design
5:36 3-Phase motor connections
6:05 Inverter converter differences
6:36 Inverter converter mounting
7:48 Electronic shift actuator
7:56 External transaxle heat exchanger and stator cooling
9:21 Transaxle torque damper and torque-limiting clutch disc
9:55 The Flywheel
10:20 Prius Prime one-way ratcheting sprag clutch operation
11:04 Drain plug and World Standard (WS) Fluid usage
11:15 Fluid level check
12:56 Case sections and serviceable parts
14:28 Fluid pressure plug
15:35 Heat exchanger and transaxle fluid cooling pipe removal
17:40 Bell housing bolt differences
19:28 Separating the case sections
22:03 Transaxle lubrication and cooling
24:11 Parking pawl and gear
26:10 Final drive and differential with preloaded side gears
27:00 Pressed-on ring gear
27:27 Two gear ratios for Prius or Prius Prime
31:40 Counter drive gear
31:55 Motor Generator 2 (MG2) Driven gear
32:12 Counter-driven gear
32:47 MG2 torque path
33:15 Internal Combustion Engine (ICE) torque path
33:56 Motor Generator 1 (MG1) torque path
34:06 Power split device ring gear/counter drive gear removal
34:53 Counter-driven gear removal
35:09 MG1 and MG2 spinning in the case
36:18 MG2 drive gear removal
37:15 MG1 sun gear removal
37:50 Oil pump pickup tube and screen
38:35 Cooling pipe
39:57 Removal of 3-Phase cables and connections
45:32 Side cover removal
48:09 MG2 and MG1 resolvers and oil pump
49:24 Center case components
51:35 Stator winding electrical connections
55:08 Resolver rotors
56:38 Removal of MG1 stator and rotor
59:59 Removal of MG2 stator and rotor
1:01:00 MG2 stator cooling drip pipe
1:03:25 MG1 stator cooling drip pipe
1:04:00 3-phase cable pass-through connector removal
1:05:40 Removal of rotors from stators
1:11:00 Side cover disassembly
1:11:16 Resolver dowel pins
1:13:20 Resolver removal
1:14:58 Trochoid oil pump removal
1:16:56 Trochoid oil pump disassembly
1:19:41 Four-generation oil pump comparison
1:21:31 Assembly of gears and rotors for power flow demonstration
1:22:35 Power split device ring gear
1:24:55 Power split device planet carrier
1:25:35 Power split device sun gear
1:26:34 MG1 rotor
1:26:43 Oil pump drive gear
1:27:06 MG1 rotor power ratings
1:27:40 MG2 Drive gear
1:28:53 MG2 rotor and power ratings
1:30:00 Counter-driven gear
1:32:15 Final drive gear and differential
1:32:53 MG2 revolutions to tire revolutions gear reduction
1:34:12 The maximum rotational speed of the MG1 and MG2 rotors
1:36:00 MG2 Rotor changes. The Magnet configuration uses negative Halbach cylinders (k = -4)(Thank you, Steve!)
1:41:45 Overall operation
1:41:45 EV Mode
1:43:25 You can spin MG1 without generating power (I was wrong)
1:43:34 MG1 attempting to contribute torque
1:44:08 Preventing ICE from spinning backward
1:48:19 ICE contributing torque
1:51:10 eCVT description
1:52:22 MG2 traction motor
4th Gen Prius, Prius Prime Transaxle - P610 Deep Dive (P710, P711, P810 Similar)
The Evolution of the Prius Transaxle - A Deep Dive service, and operation of the P610 1NM transaxle. This transaxle is used in the fourth-generation Toyota Prius sold in the U.S.A. from 2016 model years and above, as well as in the 2017 and above Prius Prime (Prius Plug-In outside the U.S.A.). The new 2018 Camry Hybrid P710 transaxle is similar to the P610, but larger to handle almost 45% more torque from the new A25A-FXS direct-injected engine.
Weber State University (WSU) - Department of Automotive Technology - Transmission Lab.
ADDITIONAL TRAINING FOR YOU
Join us for hybrid and electric vehicle training with two online courses and a 5-day on-campus boot camp with Professor John D. Kelly. See http://www.weber.edu/evtraining
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kelly.html
Questions:
1. What is the Toyota New Global Architecture (TGNA) system?
2. How much does the P610 weigh?
3. How much case width was lost with this "new" parallel axis transaxle design?
4. What does "Parallel axis design" mean?
5. Where is the inverter with converter located in relation to the transaxle?
6. How is this transaxle cooled?
7. What unique component does the Prius Prime use to prevent the engine from spinning backward?
8. What is unique about the ring gear of this transaxle?
9. What is unique about the stator windings on this transaxle versus most earlier models?
10. What is the purpose of rotor resolvers?
11. What is the purpose of the "Power Split Device" planetary gear set?
12. On the Prius Prime, how many revolutions of MG2 are required to obtain one revolution of the tires?
13. What is the purpose of MG1?
14. What is the purpose of MG2?
15. How does the engine contribute torque to MG2 to help move the vehicle?
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