2010-2015 Toyota Prius Ni-MH Battery

TIMELINE: 0:00 Introduction 0:18 16-foot-long orange cable connecting the high voltage battery to the inverter 2:10 Underhood fuse block 12V connection and the 201.6V DC Inverter connection 2:54 The interlock circuit terminals and function 3:28 The rear hatch area, 12V battery connectio,n and the 201.6V high voltage battery connections 5:03 A 2011 Prius 201.6V Ni-MH battery on a table 5:33 A 2014 Ford Fusion Hybrid 288V Li-Ion battery 6:36 Overview of high voltage batteries 7:46 Battery warning labels and recycling information 9:56 The Service Plug Grip (Battery disconnect lever) and PPE usage 10:27 Personal Protective Equipment (PPE) requirements and usage 13:05 Service Plug Grip removal 13:34 The 125 amp battery fuse location and service 15:20 Battery cover removal 18:31 The battery Smart Unit and the hybrid battery junction block 19:15 Voltage measurements at junction block with (210.4V)and without (0.06V) the service plug grip installed 20:50 See the voltage go to zero when the service plug grip is removed 21:50 Removal of the Battery Cover Lock Striker and the battery cover 23:40 Upper cover foam seals 24:00 28 Air-cooled battery modules 24:30 Battery module vents and six 1.2V Ni-MH battery cells per module = 7.2V 26:30 The 28 7.2V battery modules are in series with each other, resulting in 201.6V 28:36 The battery module bus bar to connect two modules together 32:06 Bus bar module protectors 33:00 The bus bars, nuts, and battery positive and negative post locations 33:30 How the service plug grip disconnects battery power 36:56 The battery module pair voltage sensing circuits 38:17 Bus bar corrosion issues and corrections 47:27 DANGER Align the bus bar strips properly 49:17 How to replace battery modules 50:04 Four temperature sensors 50:28 The airflow through the battery 51:34 Battery voltage measurements 54:11 The hybrid battery junction block removal 56:23 The parts of the hybrid battery junction block 58:20 The purpose of the contactors 1:01:20 Other serviceable parts of the battery housing 1:05:40 Video Summary ABOUT US: Weber State University (WSU) - Department of Automotive Technology - Ardell Brown Technology Wing - Transmission Lab. This episode covers High Voltage Hybrid Electrical Systems - Specifically the 3rd generation Toyota Prius 201.6 Volt battery system. 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_Kel... QUESTIONS FOR TEACHERS: 1. How long is the high-voltage wiring harness shown in the video? 2. What does the high-voltage wiring harness connect to in the back of the vehicle shown in the video? 3. What do orange-colored wiring and parts indicate? 4. What does the high voltage wiring harness connect to in the front of the vehicle shown in the video? 5. What is the chemistry type of the battery in the vehicle shown in the video? 6. Does the high voltage battery provide Direct Current (DC) or Alternating Current (AC) to the inverter converter under the hood? 7. What parts are serviceable in the battery shown in the video? 8. What was a common battery problem discussed in the video? 9. What is the function of the positive and negative contactors? 10. What is the function of the pre-charge contactors? 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 DONATE TO OUR DEPARTMENT Please consider a donation to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/Automotive