Tesla Low Voltage Charging System

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=M1ZEorMeuDo

Check out the low-voltage charging system used in Tesla Models 3 and Y. Learn which parts are involved, how they work, and how to determine if your low-voltage charging system is functioning properly. • Use my referral code link for a discount on the purchase of a new Tesla https://ts.la/john304015 • STANDBY POWER SUPPLY INFORMATION UPDATE: • After shooting this video, I discovered I made a mistake. Tesla made a firmware update to reduce the electrical loads when the car is off. They removed the Standby Power Supply system and introduced a Sleep Bypass system. When the Model 3 goes to sleep the new sleep bypass will turn on and connect the entire low voltage system directly to the HV Battery to supply a continuous 10.6V rather than relying on just the LV Battery for power. During Sleep, there is some LV current draw through the Sleep bypass. This average current is reported after the vehicle wakes up by VCFRONT_sleepCurrent. While 500 mA is the minimum threshold for the Sleep state, it is high enough to drain the LV Battery to the point where it requires support relatively quickly. Ideal vehicles have an average sleep current of about 75 mA, while the majority of vehicles draw around 120-130 mA. There are many factors that affect LV current draw, the largest issues being 3rd party devices tapping into the Sleep Standby Supply. As often as Tesla issues firmware updates, I need to check my service information for changes before publishing a video like this. • TIMELINE: • 0:00 Introduction • 0:30 The high-voltage battery. • 1:00 The ancillary bay. • 1:21 The DC-to-DC converter low-voltage output terminals. • 2:05 The ancillary bay of a 2018 Tesla Model 3 Performance. • 2:45 The low-voltage output terminals of a 2018 Tesla Model 3 Performance. • 3:30 The low-voltage output terminals of a 2022 Tesla Model Y Performance. • 4:00 MUST SEE - The Standby Power Supply (Built-in Trickle Charger). • 4:27 The ancillary bay of a 2022 Tesla Model Y Performance. • 5:30 High-voltage safety warning. • 6:05 The parts inside the ancillary bay. • 6:20 The High-Voltage Controller (HVC). • 6:30 The Power Conversion System (PCS). • 7:32 The high-voltage negative and positive battery terminals. • 8:24 The high-voltage negative and positive contactors. • 9:30 High-voltage fuses. • 10:02 The pyro-disconnect and current sensor (shunt). • 10:09 The DC-fast charging contactors. • 11:20 The low-voltage output terminals. • 12:19 Connecting power and ground wires to the low-voltage output terminals. • 13:40 The low-voltage positive connection to the Front Vehicle Controller (VCFRONT). • 14:25 The on-car locations of VCFRONT. • 16:28 The Right Vehicle Controller (VCRIGHT). • 16:51 The electronic fuses (E-Fuses) in Tesla computers. • 17:30 The power feed and connection from VCFRONT to VCRIGHT. • 18:10 The Left Vehicle Controller (VCLEFT). • 19:00 The power feed and connection from VCFRONT to VCLEFT. • 19:47 The connection from VCFRONT to the low-voltage battery. • 24:24 Enter service mode to see the low-voltage power distribution. • 25:03 See the PCS output to the VCFRONT and all other components involved. • 25:45 What does the green color mean on the screen? • 26:20 VCLEFT current with HVAC blower motor and seat heater on. • 26:42 Maximum PCS output with almost all low-voltage accessories on. • 27:15 Charging system status • 27:52 What happens when a problem is detected? • 28:26 Summary • ABOUT US • Weber State University (WSU) Davis Campus - Automotive Technology Department - Hybrid and Electric Vehicles Lab. • We teach current vehicle technologies to our automotive students at Weber State University and online. For more information, visit: https://www.weber.edu/automotive • This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see https://www.weber.edu/automotive/J_Ke... • 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 https://www.weber.edu/evtraining • DONATE TO OUR DEPARTMENT • Please consider a donation in my name to the Department of Automotive Technology at Weber State University here: https://advancement.weber.edu/Automotive

#############################

New on site