How Toyota Hybrid System Work Part 4 Hybrid Brakes
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- čas přidán 26. 10. 2020
- A Toyota Master Diagnostic Technician explains in simple terms how the inverter with converter assembly work in Toyota Hybrids.
In this brand new series I will go over all components of the hybrid system explaining their basic function in a simple way that's easy to understand. The theme of this series is simple but complicated.
The hybrid system in Toyota cars is super complicated and a marvel of engineering. In this series I try to keep things simple and light so Toyota Hybrid owners can see how their cars work.
I believe if you know how your car works you'll be able to utilize all it's features better and better understand your hybrid Toyota.
In this part of the series I will cover Toyota Hybrid brakes. Are they brake by wire? I'll cover the brake stroke simulator. The brake actuator. The brake pump and accumulator. I'll also explain the brake split between hydraulic and regenerative braking. I also talk about what happens when Toyota Hybrid brakes fail
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It’s remarkable what Toyota has done since I’ve been with the company. (1999). They started hybrids with the Prius, made it work to perfection & then improved it! Now, we build dynamic force engines with almost 40% thermal efficiency and pair them with Toyota’s 5th generation hybrid system! I’ve heard people say Toyota is always “late to the party” with innovation. Well, there’s a reason for that; Toyota is a forward thinking company that instills the 80% planning and 20% doing philosophy until things are perfect and reliable. Thanks AMD for the wonderful videos!
Thanks for the explanation, the sales men at dealerships should watch this, because most don't understand and don't explain this right.
Great video series on Toyota hybrids, I really enjoy them.
I have a 2014 Camry SE Hybrid with 110,000 miles. When I took it in for the 100k service, the tech mentioned that whoever did the break job on my Camry did a fantastic job....I had to think about it & then told him they had never been done!
This video explains why!
My Camry 220k still original, redoing them now…
Thanks 🙏🏾 for the simple lessons on the function of hybrid system. I have been checking out more complicated videos on this subject and I can say that w/out your videos I would be lost, but because I have been watching your tutorials they make understanding hybrid much more easier. You’re among the best. Much blessings much love.
Always wondered what the buzzing was when the door was opened, but didn't worry about it because knowing there was a good reason and am now glad to know what it is. My bride (40 years) just heard him and said "You're obsessed with listening to that guy". My reply was that I always gravitate to content where valuable information is learned.
I guessed what the buzzing noise is. I wish the hybrid display showed which braking system is working 💪. I love this engineering 🤩
Hybrid Assistant APP for your phone...shows when service brakes are used.
I always wondered what that sound was. Thanks for explaining!
I learned so much about hybrid brakes today - and I have owned my 2014 Camry hybrid for 6 years and knew nothing about it until today. Thanks.
Best Toyota Technician !!! Thank you.
Great videos! Thank you AMD! I am so happy that my understanding of Toyota hybrid has been mostly confirmed and significatntly improved!
TCCN thank you for all your hard work and time you put in these videos, really great content and how you explain what is happening under the bonnet, from a proud and happy owner of a 2011 Toyota Auris Hybrid (I have it from 2015)
Hello from France
2nd hybrid toyota that I own, I always noticed this pump whistle when I opened the driver's door but I had never made the relation with the braking system.
However, I own a BMW motorcycle that has a braking system controlled by solenoid valves that you hear at every brake!
Thanks to you, I will go to bed less stupid tonight.
Not only was this a great overview of the system, but it answered the question I didn't even know I needed to ask about the random short buzzing sound!
Thank you for another great video! I now know what that noise is when I sometimes open a door on the car when it is not running. I've been wondering about it for 11 years since we purchased our first 2010 Prius, then our RX450h, and now our Prius Prime. Your videos are awesome!
Thank you for your explanation of how the braking system works
I always wondered what that buzzing was 😁👍
Thanks for explaining, I now understand the breaking "anomaly" on my 2020 RAV4 Hybrid. OTOH, it teaches you good driving habits.
it's even better 2learn things from a sweet smiling man just like u, wonderfully explaining lots of thanx 🙋♂️
Excellent series ! I followed well but I would suggest a diagram showing the engine, and the two motors in the ecvt
I saw questions about this on the ASE test. I needed some information on how this system works so I can explain it to the students. Thanks for the info.
I always wondered what that noise was whenever I got into my third generation Prius. Thanks for that valuable info.
Talk about GENIUS! I never have had problems and I am not worried bec I ALWAYS keep two ways out of any driving situation.
Truly amazing system
Thanks for the simplified explanation
Whenever AMD goes deep into an explanation, I turn into Forest Gump, “I am not a smart man!!” 😎
Did you name your car Jenny?
😅😉
Very informative. Liked the Aaronic benediction too 👍
Great series! Thank you for this excellent channel. Now I understand what the strange sounds are and come from. I’m totally unfamiliar with the Toyota hybrid system or any hybrid system. I bought my brand new RAV4 in 2019. To be honest, it took a while before I really started to value this car due to all kinds of things that I simply didn’t understand e.g. why does it make noises not present on conventional cars. I’m a Ford guy, my previous car was a Kuga (Escape in de USA). The new Escape by the way copyed the Toyota hybrid system but is not available as a AWD. This was the reason I bought a RAV4, the only reason. Thanks to your video’s I value this car so much more and assured me this car is the right one for me.....Kind regards, Willem, Hekelingen, The Netherlands.
I will be getting a 2022 Lexus NX 350 hybrid at some point this year and really enjoyed this. I learned that stopping gradually will not only charge the battery but also make my regular brakes last a long time!!
This is absolutely fantastic video and i have a Lexus hybrid and i always wanted to know what that noise was when opening the door.. now i know.. Thank you so much for this series of walk through of the hybrid system
I’ve heard that buzz when I get in the car before I even hit the start button. I figured it was the system getting ready or resetting something on the engine. But it’s the brake system pressurizing! Now I know! Thanks
Good description. It’s a bit more complex than that, though. You did mention the interface with the ‘anti-lock braking system (ABS)’, but it also has (at least in my Yaris from 2017) ‘Brake assist’ which (verbatim from the manual): “Generates an increased level of braking force after the brake pedal is depressed when the system detects a panic stop situation ”. It’s also connected to the “pre-crash safety system (PCS)” so that the brake pressure is ramped up automatically. Again, from the manual “If the system determines that the possibility of a frontal collision with a vehicle is extremely high, the brakes are automatically applied to help avoid the collision or help reduce the impact of the collision.” I’ve experienced it doing this, and it’s quite useful! Note that the model I have also has a ‘vehicle data recording’ device, which can record odds & ends like that, almost like a cut back version of an aviation “black box”, as it were.
The other point to note is that it’s wise to avoid emergency stops if something is too close behind - it will ‘take over’ to some extent.
One thing I find about my 2014 Prius V Braking system is that while I’m braking, if the car hit’s a bump in the road it will actually accelerate and lunge the car forward, and require me to apply additional brake force in that moment, it only happens intermittently, but is a bit irritating, thanks for your very informative videos, they will help people to understand their vehicles and save some money.
Bumps cause power surges. To protect the hybrid system, the regenerative braking system turns off.
In the RAV4 the the traction control flashes in these cases. Not sure if it does real compensation too or not.
100% same on my 2014 Prius two. I even thought it was somehow my reflex but now I know
Gordito :) happy holidays to you and yours. I enjoyed all your videos you have lots of knowledge and yes they help me and for sure many others to understand hybrid Toyota and more. Thanks for sharing your experience and knowledge 🙏God bless.
Finally a simple explanation why my brakes are still in good shape after 165K miles on my 2009 Camry Hybrid. Many thanks!!!
Thank you for the informitive info. on my brakes. I tested my brakes in my 2019 Avalon Hybrid, and after a drive around here in Los Angeles @ about 70F, I felt my rotors and found them cool. Regerative braking really works!
My car was sitting in my garage for three days and after opening the door I could only hear the brake pump very close to the hood. I never heard it before. I guess the brake pump in Toyota's best car the Avalon is a little more refinded.
Regen braking is pretty impressive. The Avalon being a more heavily insulated car likely you won’t hear it as loud as some other models
I did not realize that I have watched the entire series. Very informative and fun to watch! I love you, sir! Already subscribed :)
Thank you!
@@TheCarCareNut Thank you for the clear explanation. I am wondering why no brake fluid change recommendation in manual or maintenance schedule in USA. But in EU we have it every 2 years, not sure why but probably because of the unlimited speed limit in Autobahn and very sharp exit in almost most highway.
Thank you for watching my channel! So that remains a mystery typically brake fluid has enough moisture content to recommend replacement around 2-3 years
Interesting, I always wondered where this sound came from. Thank you 👍
Just bought a Hybrid Hylander and this was very helpful!
So sir thanks I always watching your Toyota explanation regarding those Toyota new model..
Thank you for telling me why my car makes that noise whenever I open the door even if i don’t start it.Inpark my car in the garage and anytime I go to get something out of it I hear it..... I have a 2020 Corolla,love it,it’s averaging 10-12 mpg more than the epa ratings hand calculated,dash says even more..
Thank you for your explanation. I had wondered how they work. By the way, my 2014 Avalon Hybrid has just turned 150,000 miles. Every 5,000 miles I have the local dealer change the oil and rotate the tires. And I'm still told no brake work needed!
Thank you for this. Very informative
Thanks for the video and explanation of everything I had know idea,thanks again.
Thanks for the information. Now I know what that buzzing sound is when I open the door.
Thank you for your hard work .
Love your videos! I absolutely love my 2015 Prius, but my regular mechanic won’t touch it. I don’t trust dealers or most mechanics. (Due to dating a mechanic, who worked in his dad’s successful shop) I realized that if I wanted to continue driving Prius, I had to understand them and be more pro-active with the maintenance. And I want to return your greeting “the Lord bless you”.😊
Great explanation, I have had multiple Prius’s and never knew that’s how they worked. I never had a problem with breaking, accelerating was a different matter. I floored the pedal in an emergency and had to wait short period of time for the car to start to accelerate. Scared the poop out of me and after a while I sold it and ended up with a Tesla. No problem accelerating now.
Nice Explaination. The yaris 2020 hybrid has an other braking System. Maybe you can explain this in an other video.
I made an attempt. Drove 80-100 km / h put it in neutral and braked down evenly and hard, sometimes only on the P brake and it helps a lot. I will do this regularly, then the rust will probably disappear completely.
Good series.
Talk about potential DIY items on hybrid in future episodes. That will be a good topic.
Thanks great information!
Awesome! You did a fantastic job of bringing a lot of folks including myself “up to speed” in the understanding of the hybrid. I own a Tacoma and my wife owns a 7 year old RAV4 and we are now considering a new RAV4 Hybrid. And yes I’m keeping the Tacoma
Thank you for such an easy explanation.
You answered a question that my dealer couldn’t answer. That’s the buzzing noise when I open the door or if I sit in my car for a while
Dealership is becoming joke. All you end up paying three times is not for the quality of service. You are basically paying for the overheads they have with all those unnecessary staff.
Yep asked my dealer where the battery intake fan was and he looked at me like I spoke French one guy tried to tell me the prime was fully ev with no engine at a Toyota dealership
Never knew my car was so cool! Love watching this series and learning about my beloved prius! Did you work for toyota to become a master tech on their cars? Currently being taught to work on mil vehicles. Sounds like a cool career path idea when I get out!
Thank you for watching my videos! I went to school for Toyota training then worked at the same dealership from entry level to master diagnostic technician! It’s a good career but hard and stressful.
Thank you for your showing
Many thanks for the information
I like your videos about hybrid system, I recently purchased Toyota Prius Prime and knowing how the system works is very helpful.
Have a nice day, from Toronto.
PS. can you change music background, is click click as a clock when you are talking :-)
Thanks! Congratulations on your Prius prime purchase.
I’m overdue for new music! Thank you for the suggestion.
Great Video.. Thanks again. Have a Great Thanksgiving.
Been wondering what that whining / spuring noise was in the last 5 years. Thanks for the video
I live about 300 metres from the sea. I’ve only had a 2015 Corolla a couple of months. Thanks for the explanation about the unusual noises like charging the brake accumulator. On leaving the driveway the fist few brake pedal applications involves a sound like rust being cleared from the discs. I’d been wondering about noise.
I have the same problem but it is always there when braking lightly, some say it is normal
Thank you so much for this really cool informative episode on the hybrid break system. I was wondering why I’m still driving my 2018 Camry Hybrid LE with 68k+ miles with my original breaks whereas my friends have to change their break pads twice already with their 2018 Rav4 with 48k+ miles.
By the way Mr. AMD, would you mind letting me know when I should be changing my brake fluid?
edit: I live in New York City and bought this car around November 2018.
Thanks 🙏.
Yes, different noise that occurs when I push brake pedal down hard, sounds like it is coming from the pump. could be described as a dull squeak. It just started to do this about a month ago.
Thanks for your reply
Man, this is a great system. I bought a 3rd Gen Prius 5 years ago and it was 2 years old. The dealer I bought it from (Dodge dealer) said I would probably need a brake change soon, this was 2 years after purchase, then the car was 4 years old, 3 years later, a 7 year old car and I have not changed the brake pads, they just sit in the trunk.
Thank you for your video, 2007 Prius got a buzzing sound every 20 sec. make me nuts
I’ve watched a ton of his videos - and this is the first one where I’ve thought “is he drunk?”. I’m quite sure I am wrong - but it’s how he comes across here.
I like every video. Great
I just bought a 2020 Toyota Corolla Hybrid. I'm really enjoying it so far and I've found your videos to be really informative in helping to get to know my car better.
I'm from Chicago as well, and I'd really like to know if there's a way I can have you service my Corolla! If not, then let me know where you recommend taking it. It is still under some of the original warranty so I will more than likely be taking it to the new dealership on Western & Peterson, or one near my workplace in the suburbs.
Hi David! Congratulations on your purchase. Email me for details on working on your car.
Oh, that's what that sound is. Thanks
I m buy toyota prius 2007 watch your first time video very good very happy only running miles 118000 only £2500
Awesome video and thank you for your deep dive explaining how this complex piece of automotive art works. I feel that the my RAV stops very secure and emergency stops are very strong. One question - on my 2016 RAV when the brake pedal is applied does the front and back motors work in sync to regenerate and stop the car quicker than a hybrid front wheel drive?
I was wondering what that noise was when opening the drivers door.....thanks for the explanation.
I learn so much from your videos, "life is good". I know how regenerative brakes work, but my question is, how hard do I have to decelerate, before the physical brake pads are making contact. MG2 has a bit of torque, so does regenerative braking have the equal amount of 'negative' torque. I normally coast to a stop, but sometimes the cruise control applies a fair bit of braking force, am I wearing out my brake pads? Keep up the good work. Ray (from Australia). I have a 2021 Camry Hybrid.
I must share that the CHR Hybrid I bought in April of 2018, saved me from crashing TWICE by other reckless motorists towards the tail end of 2018 ; see, as I was travelling along a highway at between 80 to 90kph and was executing an merge into an Exit Ramp, a light truck suddenly swerved out from its own merging out lane which then caused me to stomp on the brake pedal to avoid colliding into the truck's rear end. Guess what ; the CHR decided in a fraction a second to multiply my brake pedal pressure enormously when it detected insufficient foot pressure - possibly calculated by the front proximity and collision radar's data - and it brought my car to an abrupt stop dipping the front down significantly and eased off the moment I heard the first short squeak of tyre screech was beginning. My CHR was halted just 1 foot from the tailgate of the light truck. The second incident was similar in nature but caused by a car cutting into my lane due to the lack of foresight in planned lane selection. And again the on board computers decided I had a light foot and took safe control of the situation with not a squeak from the tyres. No regrets going Hybrid under Toyota.
Loving these hybrid videos! Thank you for educating me. You have got a new subscriber.
I have got a 2008 Camry Hybrid still going strong and bought a 2019 Rav4 Hybrid. Love the engineering and reliability of Toyotas!
Thank you for watching my videos and subscribing! Nice fleet of hybrids you got there!
I see you’re always talking about the battery fan filter, I doubt that my 2008 Camry has one, can you please tell me if there is a solution or if you have a video on how to maintain it if it doesnt have one. What about 2019 Rav4 hybrid filter where is that located?
The 2008 Camry didn’t come with one from the factory. The vent is located behind the backseat head rests.However you can install one very easily the part no is G92DH-33010. Your 2019 rav4 hybrid also have one underneath the back seat. The door setup is similar to that of the 2020 corolla in this video czcams.com/video/U7mjpvRihVU/video.html
@@TheCarCareNut thank you so much for the info..much appreciated!
can't find this in Canada, it has to be ordered from states for $80. The part# they provided was GA2D-106010 for Camry
Thank you,
Just Wonder how long it actually took Toyota to design and perfect these amazing systems.They have done a brilliant job.
Thanks for the informative video. What would you suggest to Prius Gen 2 , Gen 3 owners who usually have to face an issue with their ABS Accumulator Leak problems? Any preventive measures or maintenance that can last the module longer?
Hi, so glad you made this video, I'm having some failure and I need some help. I purchased my car used and I just need help. My warranty just expired
Interesting system. Couple of questions and a suggestion/request...
With little traction on ice and snow,how quickly does the system engage hydraulic front and rear brakes so as to not unweight the back end and keep vehicle stable?
2) it sounds like 90 percent of the braking in these vehicles are done by M2 attached to the front wheels... Does this cause more tire wear on the front and should owners take that I to account when scheduling tire rotations?
And a suggestion would be when talking about some parts like the braking cylinder/simulator, could you add in some b roll of the part or a photo?
Great content as always ..
Hi Shane! Hope you’re doing well.
The hydraulic system kicks in very rapidly on hybrid when needed and bypasses regenerative braking rapidly when needed. It actually has much more control on ABS and traction control due to the accumulator and pump setup.
It does cause more braking on the front wheels but that is also true with most front wheel drive cars because of the weight distribution being more towards the front because of the engine and transmission location. That’s why rotating the tires at the set interval which is 5k miles in Toyota’s is important to distribute the wear evenly on all 4 tires and not end up with worn front tires and almost new rear tires.
Thank you for the suggestion! I’ll try to include more pictures in my videos.
Good video 🙂. Was wondering what happens if the batteries are full 🤔
Very interesting video, but I was curious to know how mg2 works when you put the gear shifter in position B.. Thanks!
The video on b mode is coming up tomorrow
Another great video:-) I was sure that this sounds is the fuel pomp pressurizing the fuel system. New thing learned thank you. BTW in my 2018 PP I have and old-school foot break on the left so I guess it could be use as well in case of failure?
Thank you for watching my video! So the foot brake is the parking brake. That one is mechanical and can be used at any time and that’s connected by cable.
@@TheCarCareNut Always good to have a back up system
Hi!! Big fan of your work! Quick question, my partner and I recently got the '22 RAV4 XLE hybrid, we were on the road and we had to quickly step on the brakes to avoid rear ending another vehicle; my question is, when we slammed the brakes our vehicle made this grinding/grunting sound I wonder if this is normal? Thank you for everything that you informing us!
Thank you for the video about the hybrid brakes. I replaced my brake pads from my 2011 Prius last year. I unplug the 12v battery as I saw many videos recommend. The brakes feels fine. However when I get to a complete stop. Feels like it’s braking harder with the rear brakes. Does it need a calibration? Since to flush the fluid needs a scan tool. Thank you
Thank you for watching my video.There’s no calibration after brake pad replacement. I would look at the fronts and make sure nothing is seized and that the fronts are working properly.
Great video thank you! I do have a question. When you come to a full stop and your foot is on the break are the calipers and pads pressing on the discs? Do they actually work just before you come to a stop so there is some use of the discs every time you stop?
Nice explanation! Regarding the safety concern, are there also hybrid cars with normal brakes, thus without the regenerative braking with MG2?
I have a 2021 Camry Hybrid and a 6 mi trek down a steep, windy hill daily. I'm braking almost the entire time. Should I be using B mode in 2nd gear instead - like I used second gear with my Lexus ES to save the brakes? If yes, why? If not, why not? After watching all your videos, I completely trust your advice and consider your opinions as a master mechanic specializing in hybrids as top tier.
Great video, keep the knowledge flowing, is the Lexus 2012 CT 200h a better bet over the Prius c .?
Thank you for watching my video. They are two different cars with similar hybrid systems. I wouldn’t say one is better than the other. I would say that the ct is definitely better because it’s slightly bigger and it’s a Lexus but in terms of reliability they are equal
I am a new subscriber and have just bought a new 2024 Toyota Cross hybrid. As I am busy moving countries I had to park the car for 9 weeks before returning to use it. Firstly - will this be detrimental to the battery pack and secondly is it safe to jump start my car should this be necessary. Great series, I really enjoy learning about new technology.
Just bought a RAV4 hybrid and I love it! Like many others, I was wondering what that buzzing sound was as I open the door.
Learned a ton in this series (and your other ones too!)
Thank you for your video now I understand why my brake on Prius 2010 is very very hard to press. By the way I bought a new brake actuator , we replace it with new brushless in , but the brake still hard and is not possible to reset it with launch tool. How can we do now ???
Excellent video! Thanks for explaining all of this. I recently got a Corolla Cross Hybrid (Latin America...) and the manual indicates that the brake system should be inspected every 10k km. I'm talking about the hydraulic brake system. The concessionaire says that it should be done every 5k km, because of the size of the car (it is smaller than a RAV4, but bigger than a Corolla Sedan). Should I go every 10km? Thanks!
Hi! Every 10k is fine
Thanks for the video my 13 Prius over 400k just failed and going to replace the actuator and pump. My question is do you still recommend the d7 scan tool after several months since your review. Wishing you great success with the new shop
Thank you for your videos! I drive over a big mountain pass daily(Teton Pass) with a 10% grade. Should I use the S + and - or just brake normally?
Hi! I would just brake normally unless you feel like the brakes are getting too hot
6:14 a few minutes after parking, the brakes are brought to the "resting" state where only the front wheels could be pumped. Opening the door tells the system to reconfigure the fluid valves for driving. It's very different from the vacuum brake assist!
Thanks for the information. I have a question. Since we live in a mountainous area, will the hybrid brakes overheat in a constant downhill drive? This happens a lot that's why drivers here normally use engine brake. Which directs me to my 2nd question. Will the car get the most of regenerative braking if drivers use engine brake? I need to learn more about hybrids, never had one but praying to have one. Thanks! God bless.
Excellent video!
Is it a sign of ABS failure if a 2-second buzz of the brake booster pump sounds every 30 seconds or so for about 5-10 minutes after powering off the car?
Hi, love your videos but you never seem to mention the C-HR. I own one and love it.
I like your channel as it’s very informative and easy to grasp.
I have a question:
I live in Edmonton Alberta Canada where it’s very cold in winter regular -20 C.
You mentioned in one of your videos that the hybrid car need to be used periodically in order to avoid the drain of the hybrid main battery otherwise you would have to tow it to Toyota to charge it back so my question for how long the car would be left safely in the garage or in the road while the owner is traveling and no body is using the car yet it would restart normally when it’s needed.
Thanks
I would say any storage over a month is a concern. I would try not to let it sit for over a month regularly. If it's a one time thing its not a problem. But repeat that often and the battery will be affected negatively over time.
Thank you very much for this. I just bought a new 2022 Corolla Hatchback. When I coast down hill, the rev counter is in operation, I'm guessing the engine is assisting the breaking, but maybe not? On the engine, electric motor, battery graphic in the center console, it shows only the electric motor is in operation, so why is the rev counter at 1000? Can the gas engine come on when you are coasting down hill without using gasoline fuel or is the rev counter connected to the electric motor?