High Voltage Hybrid Systems - 2017 Toyota Prius Li-Ion Battery

0:00 Introduction
Three battery options at 0:22
Battery locations at 1:27
Service disconnect plug grip at 2:54
Battery Junction Block at 5:13
Safety warning and recycling at 6:00
Cover removal and Air Cooling at 8:40
Battery Stacks and cells at 9:20
Internal components and parts at 10:02
Battery electrical connections and configuration at 11:02
High Voltage Fuse location at 12:07
Service disconnect plug circuit location at 12:25
Contactor locations and functions at 12:40
Battery ECU at 12:55
External connection location at 13:30
Battery cell voltages sensing and thermistor harness' at 14:04
Battery cell voltage balancing at 15:20
Battery cell voltages at 17:28
Removal of battery components at 20:00
Service plug grip harness removal at 21:00
Negative cable disconnect at 21:45
Current sensor disconnect at 22:00
Battery Junction block removal at 23:00
Contactor locations in junction block at 23:20
Junction block tray removal at 24:00
Intake cooling air duct removal at 24:28
Inlet air temperature sensor removal at 24:50
Battery 125 A Fuse housing removal at 25:31
Battery side shield removal at 27:27
External harness disconnect at 27:40
Battery ECU cover/shield removal at 28:15
Battery ECU electrical connections at 28:48
Battery thermistor locations at 30:27
Battery ECU removal and notice at 31:40
Removal of battery stacks at 33:21
Ni-MH battery module dimension comparison at 35:08
Lift out of battery stacks at 37:24
Battery cell studs, voltage sense connections, bus bars, and nuts at 38:20
Li-Ion cell side covers at 38:56
What is serviceable? at 40:24
Scan tool data reading battery state of charge (SOC) at 41:04
Prius Prime (USA) battery configuration at 44:00

2016 - 2018 Toyota Prius Li-Ion Battery

Weber State University (WSU) - Department of Automotive Technology - Ardell Brown Technology Wing - Transmission Lab.

This episode covers High Voltage Hybrid Electrical Systems - Specifically the 4th generation Toyota Prius 207.2 Volt Li-Ion battery system. The 2017 Prius Prime 351.5 Volt battery is also discussed. This battery is rated at 0.75kWh. 0.75kWh / 207.5V = 3.6Ah rating. The system is protected by a 125A fuse.

This topic is taught as part of our 4-year bachelor's degree program. For more information on the Weber Automotive program, 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_Kelly.html

Donate to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/givetowsu

Questions:
1. What is different about the service plug grip on this battery versus previous generations of Prius batteries?
2. How is this battery cooled?
3. What is a battery stack?
4. What is the stack voltage?
5. How many battery stacks are in this battery?
6. How are the stacks wired (Series or parallel)?
7. What is the amperage rating of the battery fuse?
8. How are battery cell voltages monitored?
9. How are battery cells balanced is there is an imbalance after battery service?
10. Where is the battery current sensor located?
11. What warning is there on the battery ECU?
12. Are the sides of the battery cells dangerous to touch?
13. What parts are serviceable in the battery?
14. What was the battery state of charge when the engine shut off in the video?
15. At what battery state of charge will the engine re-start?

Видео High Voltage Hybrid Systems - 2017 Toyota Prius Li-Ion Battery канала WeberAuto