2004-2009 Toyota Prius High Voltage System Operation
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- เผยแพร่เมื่อ 18 มิ.ย. 2024
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Weber State University (WSU) - Automotive Technology Department - Advanced Vehicle Systems Lab. A brief technical description and summary of the high voltage hybrid system of the 2004 - 2009 Toyota Prius as well as a discussion of hybrid system operation. The third-generation Prius system is similar but smaller and more efficient.
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information visit: www.weber.edu/automotive
This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see www.weber.edu/automotive/J_Kel...
Visit my other youtube channel / vibratesoftware to see the amazing NVH app for vibration diagnosis!
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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 www.weber.edu/evtraining
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You are absolutely brilliant, wonderful and very intelligent and calm person sir. This is absolutely free knowldge you are providing us. I am very grateful to you. I wish that i could be in your class to learn from you. I thank you so much for making all these videos.
Thank you!
This gentleman is a world class teacher. I don't have a Prius, but after stumbling apon this video I just had to subscribe.
The way the information is relayed to the viewing audience is as high a quality as the engineering in question. Respect.
John is brilliant. I work on these things and wish I could work with him on many of the issues I run into. Amazing WEALTH of knowledge and fantastic explanations. I've learned so much watching his videos and his breakdowns on how these Hybrid Synergy Drive systems work.
Good Morning!
I am a Brazilian automotive specialist graduated from SENAI and General Motors Brasil!
Weber, congratulations, excellent technical video!
May God bless you and keep making other videos with this technical ability!
Grateful
Wilmar Ribeiro
Приус это шедевр! Высокий импульс творческой мысли, смелое шерение , чудесное поплощение!!! Быть добру!!! Таёта I LOVE YOU!
I do not know English very well, but I've seen many videos of you. You are an excellent and extremely professional teacher. For 3 or 4 years I subscribed to your channel and I liked all the videos I've seen. I work the electronics of the cars. I know something about robotics, mechanics, electronics. I think cars are robot with wheels. I like the electrics and I think the hybrids are a step to them and until the infra-structure is created so that we can all have an electric car, the hybrids are good. I had a 2006 Honda Civic Hibrid. I bought it in 250 dollars because they were going to join it. In a few hours I put it to work. Now I have a 2006 Toyota Prius. It does not work With what little I've seen, I've learned that it's very different from Honda. It has helped me a lot to see all your videos of the Toyotas II Generation. The high voltage batteries had 190 volts. They had a lot of sulfate in the contacts. I cleaned everything very well and now it has 201 volts. The scanner gives me two codes: 1) on the HV and it tells me to replace the Inverter-converter module. 2) Replace the battery. When I try to start the relay of the battery block sounds and in the dash it flashes READY 2 or 3 times and then the red triangle appears. I have another module inverter converter equal, but my question is whether it is the module or the batteries. I measure the voltage of them at the moment of starting and lowering something, but in a few seconds they return to 201 volts. I also want to know if the starter of this car is only for the MG1 or has an external one. I already learned with you that it has no alternator, which it does through the conversion of 201.6 to 12 in the inverter module of the A / C. I know that the Honda does have a starter, but it still does not. Please, I need your help. You can answer me in English and I use the google translator, but if you can send me some documentation in Spanish I would also appreciate it. Thank you very much for all your videos. I'm sure you help thousands of people around the world, because you do it with professionalism and love of what you do. Greetings from Tampa, Florida.
Thank you, There is no starter, MG1 starts the engine. It sounds like you still have a battery problem. The converter trouble code is not a good sign either. Best wishes
This is well above my head and I will need to watch this couple of times. Very well presented and useful information!
This teaching setup is incredible! Thank you so much for taking the time to share this information us. The prius is such an incredible vehicle and this layout showcases the components so well!
Glad it was helpful!
Thanks John! I'm thinking to buy an used 2nd gen Prius and with no knowledge on the area, as a simple potential car owner, I really appreciated your video made in simple words. Again thank you very much.
Thank you! Best wishes
Excellent presentation and amazing engineering by Toyota. I just bought the 2008 Prius and wanted to learn more about the system.
You encouraged me to work on inverter/converter unit on my 2007 Prius. Dealership wanted to charge me 5k for it but it cost me $300 on used unit. My Prius is almost 277, 000 miles and counting!!!! Thank you so much.
Awesome, good job!
Was it hard do it ,my 2012 Prius converter with bad at 122,000 miles . It still had warranty I save $4200. I got 4 years more of warranty or 30,000 miles more until warranty ends lol
Wow, thank you! I already had some basic knowledge of hybrid vehicle technology, but this is the absolute best breakdown video I have ever watched! I now know exponentially more than I would have thought possible, and understand my car and it's operation. Thanks!
Thank you!
Danke für Ihre Arbeit, Herr Kelly. Sie sind ein fantastischer Lehrer. Thx for your work, Mr. Kelly. You are a fantastic teacher.
That's the most comprehensive review I've found, good job. As a Lexus 400h owner, my experience has been mostly with the very small 12V battery. Because the large rear battery will not charge the 12V battery when key is off, you have to be careful not to run that little battery down. I've boosted a few times already and we have booster cables, which are unfortunately hard to get to because the trunk won't open with a drained accessory battery. Boosting is done in the usual way.
Fantastic job my friend. Learned a lot on that electrical system. Gives me a way better understanding on how the car works
Thank you Prof.......so amazing to learn how new electric vehicle built, I'm a electric reach truck technician so I can understand what you explain, God bless you even more Sir.....
Simply the best video, no comparison. This is truly professional.
This is just great.
Thank you very much for this awesome explanatory lesson.
I watched this video twice, you are great.
Thank you very much.
I always thought that there is nothing free in US, i guess i'm wrong. This turned out to be very great free lesson on how hybrid system works.
Really appreciate your time and effort on briefly explaining it how this system works.
Great stuff.
Thank you for this quality presentation. I hope you can follow up with more on internal components, things that might fail and what is involved to service them, especially failure mode(s) of the HV battery and reconditioning possibility.
Outstanding demonstration for this HV. WSU Automotive Technology 'Great job'.
This was very informative, I really need full knowledge of all components and buttons in the jump start box!!
Very informative video that demonstrate how the electric system works on a Prius. Thanks.
Awesome. I teach wind turbine operations and had no idea how similar the Prius electrical system was to the asynchronous generators used on wind turbines.
Yes, very similar! Thanks for your feedback!
Absolutely an awesome video. Thank you very much for this.
Thank you sir,very informative! God bless!
Amazing! So well explained. Thank You Professor. It is a marvelous travel trough my favorite vehicle.
Thank you very much
Awesome terrific nice thanks for that beautiful information i appreciate your time you spend teaching us so important information God bless you and your family have a beautiful day!! Thanks
Great effort. Thank you very much
Congratulation for the helpful explanation. It´s good to learn from another Professor.
this guy deserves money
+Wayne D Thank you!
WAYNE D ad revenue ;)
This genteleman is possible an Assistant Professor or a Professor with either an MS or possibly a Phd.
Many thanks indeed for this awesome video... 👌
Excellent presentation. Thank you.
Thank you sir, this is what I was looking for.
thank you for detailed explanation of the toyota system . . . so very completely well understood . . .
Thank you!
Excellent video. Thank you
Awesome! Thank you for this.
+Arthur Chaput Thank you!
You rock homie. Thanks for this tutorial.
Thanks for such a informative video
Outstanding John. Thank you.
Thank you!
Excellent video. Very informative.
absolutely concise. loved it.
15 nuff nuffs showed their stupidity by thumbs downing this material. WHAAAAT?
+Gods Phone Thank you!
Amazing layout wonderful knowledge simple straight to the point all amazing matainance tips and reminders
ThanK you so much... You're amazing and your explanations are quite unique and understandable... Thanks a bunch
Thank you
Bonjour, je suis très ravie de la vidéo , je vous remercie car vos explications sont très claires , je continue à vous suivre.
Excellence explanation video, thanks.
excellent video , it make me aware of the parts of my Lexus ct which has the same engine as the Prius
Thank you!
Top notch explanation!
Great information on the way to the last second!
Thank you!
Take a breath! )) Great review though clear and accurate!
+diioriog Thank you!
Thank you for the great video!
Thank you!
So cool! What a great teacher. Wish I could be a student here!
Thank you!
Your are great teacher thank you
Its a great explanation. Thanks for the help
Glad it was helpful!
0:00 I remember in one of your newest videos you talk about that red high voltage glove thats hanging on the wall. Its crazy how much it deteriorated over 7 years.
That's a very informative video, Thanks.
thank you for the vid...
Excellent! Excellent! Thank you.
Thank you sir valuable information
Thanks for the detailed overview. In summary the system de-energizes itself but I wouldn't stake my life on it. Have you a video on the computer that controls the engine, MGs, and inverter/converter, accessory charger, etc? That must be the heart of the system!
Vidéo passionnante (exciting video)
Great video,
Nice video. Tanks.
Thank you!
thank you for giving some knowledge
thank you so much for such for actually explaining this unit in such detail.
Thank you!
I do have a question for you. I have a 2007 gen II Prius.
There is a man on youtube who has hooked up 1000 watt/2000 watt surge pure sine wave inverter to the 12-volt side of the system as an emergency backup for his home. (See th-cam.com/video/Uh02JLAP3lo/w-d-xo.html)
My concern is if the draw is enough to harm the 12-volt inverter side of my Prius if I follow suit.
It seems from your description that and what I have read that the charging of the 12-volt auxiliary batter is more of a low amperage charging system that keeps a float charge on the battery. Is this a correct assumption?
Do you know the maximum amperage draw on the Prius's 12-volt inverter side of the system without damage? And how long an auxiliary draw be maintained without damage?
Thank you
Power in must equal power out. If you want 1000 Watts output at 120 volts, the maximum current output is only 8.33 amps. That will not power very many items in a home at the same time. Furthermore, providing 1000 Watts from the Prius charging system and 12V battery (at 14 Volts with the vehicle powered up) would require 71.4 amps of current. The maximum output of the DC-DC converter is 100 amps (and it will run very hot if forced to run at that level for a long time). The vehicle alone will draw 50 - 70 amps with the engine running, cooling fans on, electric water pumps running, etc. It will draw less current while the 12V system is drawing down the 201.6V battery, but the engine must start to recharge the 201.6V battery. In other words, the 1000 watt inverter idea may work for short time periods, but it will not be able to sustain 1000 watts continuously. The DC-DC converter will run too hot at those levels and start to turn down its output rate to preserve itself. It is not a good idea if you need a long time power supply. It should never be run just from the 12V battery without the hybrid system powered on; the 12V AGM battery will be damaged. By the way, the high voltage Ni-Mh battery of a standard Prius has less capacity in ampere-hours (21Ah) than the 12V battery does (30Ah). This means that trying to connect to the high voltage battery will result in even less power. I hope that helps
Thanks for the answer.
One more question - what is the charging amperage max to the 12-volt battery from the built-in charging system?
So, with this in mind, I think I can get by with a 600-watt pure sine wave for periods, especially if I am only running 100 watts or less AC loads - so the efficiency should be ok and allow the car's system to run as necessary. Also, when the car is stationary without A/C or lights, etc, there should be ample headroom for a small load.
Also, due to the large output capacity of the genset (50kW) for the 200V battery and drivetrain, it would seem that connecting into the 200v side of the system would be efficient due to the capacity of the MG unit to charge and keep this battery available for such a load as well as the standard load for the car.
AS you know, however, a 200v to 12-volt dc converter would be a custom build or difficult to find, thus the 12 volt seems to be the answer.
Very informative video. Have wondered about all of this for some time. Many thanks for your generosity. What an amazing vehicle. Mine is a 2007 model with 252,000km on the clock. All the best.
Thank you!
Awesome thanks!
GREAT HELP. ONLY THANKS
@JrgrimWoW Hi, thank you. I must have forgotten to mention the "Flux Capacitor" and the "Jiga-Watts" of power. :)
Excellent video! Would you recommend buying a hybrid vehicle for the average driver? What would be the criteria to whether buy a hybrid or not?
Thank you very much for this video! Wish chevy would do what toyota did and partner up with a university to teach its chevy volt system. But since they dont even post the volt's battery voltage on the wiki page i doubt that will happen anytime soon. Thanks again!
Impressive instruction
Thank you
Nice Job!
Well done!
good evening or morning! i have highlander hybrid 3.300 front wheel drive and my ICE engine wouldnt stop when ideling! Gas engine never stalls although it should! Thank you.
And the mistery is gone !!, Thankss a lot
Thank you!
Great video!!! When replacing the transmission let's say, Is " removing the service plug grip" good enough to work under the hood? Thanks.
top video thank you
感恩了解，謝謝分享！
good post thank you
Thank you sir for the info
+Habib Abbas Thank you!
Nice set up.
Thank you!
Many hybrids have jump start terminals under the hood (even if the battery is in the rear). You might check the owner's manual to see if your model does.
Hi, upon further investigation I have determined that you are correct, the labels are reversed. The second generation had two relays on the positive side and one on the negative. The third generation Prius is the opposite with two on the negative and one on the positive. I was also wrong on the contactor verses relay name. Toyota does call them System Main Relays (SMR), I think it is GM and/or Honda that call them contactors. So many different systems, yet all similar. Thanks again!
We work on hybrid at our shop, and we use Your illustration to explain to our mechanics, overall (block diagram) system,how to troubleshoot voltages and communications between computers ,Amazing Illustration, Good Job
I would like to add a notice that if you decide to tow your vehicle you can use Wheel-lift towing as long front wheels they are not moving (Front wheel drive ),Kindly correct if I am wrong .
Thank you! Yes, you are correct, front wheels must be off the ground.
Thanks for that! Does it mean that they would be another inverter for rear motor on RAV4’s all wheel drive systems?
Excellent learning material.... I have watched your video many times despite the camera movement..I have learned a lot about hybrid electrical system...If you can only improve your video by using a tripod on your camera with an assistant to focus the camera on your visual materials, I'm sure , this will make WSU a big HIT on youtube like a blockbuster.. More power and million thanks.
+art rigor Hi, Thanks for the feedback and thanks for the compliments!
thanks again...
You are just fantastic, Sir. Im from Mauritius and I'll like to learn the hybrid batteries as I intend to offer hybrid battery service. Looking forward to talking to you. Thank you.
Thank You for this great video! Very nice job explaining the components.
I have a question that I hope you either have knowledge of or can
obtain. Can you tell me what the Kwh is of MG1 and what is the output current of MG1 when it is in regen mode? I realize that the power MG1 is generating is 3 phase which must be changed to DC to recharge the batteries.
Just curious what Volts, Amperage is produced directly by MG1 if in fact it is similar to or greater than a standard alternator prior to being rectified. My guess is that MG1 produces more power output than a standard alternator.
Oh snap! You do tesla video too!! Diff subscribing ty! I'm an extricate car enthusiast. Love the engineering and I can see how to make it more effective ill be installing lithium modules in my 2005 prius. 1900$ but I bought the car for 900, def worth it. Considering these cars get 350k+ miles
Thanks for watching!
Better than the wikipedia article, love it
Only thing i cant find out anywhere is a power rating of the ac compressor
Thank you! I do not know what the power rating is either.
Hi, No, the high voltage system is totally isolated from the 12V system. It is like a flashlight sitting on your back seat (it has its own isolated power supply).
hi great video, thank you.. how much the ac voltage level for MG1 and MG2 during operating for motoring and generating?
Just an off the wall question, but is there any way to tap into the 3 phase output in the inverter/converter and use it for my welding? I think this would work great in field applications on an older model prius. Could I use the battery as a power bank for my solar panels on my home if I tap into the 200 volt battery?
great demonstration..Could you have the isolation relays wrongly labled.the arc aresting component on mine is across the positive isolation relay.
Great sir
Thanks for watching
nice video
Greetings, very good video, I would like to know where the Hybrid battery temperature sensor A circuit high is located
Ive been looking at this video trying to figure out a way i could use this synergy drive for my solar and wind turbine setup and im thinking that it’s possible. It seems that the 3 wire for mg1 and 2 could become a wind turbine connection to charge a series battery bank and the dc to dc converter could charge a 12 volt bank or possibly connect straight to the 12v AC INVERTER. I was wondering what you thought about that idea? But also thinking that the components are maybe possibly solid state and dont require a-lot of ecu management. Would the IGBT setup just convert/invert current without an ECU less the Ac pump im sure ?
Weber State University thank you so much.
i need some help with my prius. I do not have electrical current in the a/c compressor and I would like to know what elements I should look for