Not all that clear. Anyone interested in this 'B' mode and how it works should view the 'Car nut' videos. He is a Toyota master technician and gives a very good description of how 'B' mode works. In essence, when in 'B' mode, going downhill the Motor/Generator goes to maximum charging and the ICE spins but does not receive fuel nor spark ignition. Result is the ICE slows the car down just as it would in a normal petrol engine when put into a low gear going down hill. My explanation is over-simplified, so go now and see the 'Car Nut' explanation. It's absolutely excellent!!
Yes. The ECU programming will ensure that the engine is never overstressed. You can even put it in P at highway speed and it simply turns into a safe mode. This is also why it refuses to rev when you have just turned it on. You can also see how it tries to counteract my stupid driving style in the video.
Hi. A very good explanation. Congrats. Let me ask you a question: i was driving my car (Corolla Hybrid) down a hill. The battery was completely charged. When i selected the "B" position, The car made a very loud noise, like a monomotor airplane taking flight. Some mates related The same experience. Do you know what causes this noise? One guy said it is because the acumulated energy is being discarded.
I have a Prius 2009, when the ABS has been replaced by a mechanics, putting the can on B mode will not slow the car as it was before replacing the ABS. any explanation why ?
Good info. The charging increased while in “b” mode. I assume the engine assisting in braking was the cause of charging increase. Toyota’s official response is that it is engine braking does not charge the battery. I didn’t believe Toyota But after seeing you video b mode increasing charging because the motor is engaged.
My best guess is no. You are spinning the engine needlessly when using it. However. The engine will not be under load, so the added wear and tear on it is negligible.
@@LasseDeleuran exactly what I thought....I use B when i enter junctions or when I'm driving fast and use it like a downshift then back to D (upshift)when I accelerate...never do I leave it in B. The car slows down much quicker with less stress on the brakes....the reason I ask is because some guy was saying I'll kill my car doing that...I doubted it because why would toyota make mode in the car which ruins it...B is like a low gear on deceleration.
O BTW the effort you put into this video for people like me is astonishing...that lego model of the ct200h is awesome...exactly like mine...well done sir!!
@@pollumG there’s no wear on your brakes if you don’t press them hard. Use a light press for regen. Shifting to B is wasting energy turning the motor you could be using to charge the battery. B is for descending long hills
@@aluisious in b mode slowing down charges the battery. Modern cars don't use fuel upon deceleration. Even toyota says you can use it to slow down and its not exclusive to long downhills..anyway you do you and I do me. I know for a fact when driving a bit spirited engaging in b mode when cornering tucks the nose in then put back in d mode again when accelerating out of corner or when you need to slow down fast because you're going a bit too quick. B mode has many uses if you know what you're doing.
Not all that clear. Anyone interested in this 'B' mode and how it works should view the 'Car nut' videos. He is a Toyota master technician and gives a very good description of how 'B' mode works. In essence, when in 'B' mode, going downhill the Motor/Generator goes to maximum charging and the ICE spins but does not receive fuel nor spark ignition. Result is the ICE slows the car down just as it would in a normal petrol engine when put into a low gear going down hill.
My explanation is over-simplified, so go now and see the 'Car Nut' explanation. It's absolutely excellent!!
Amazing explanation! I had so many questions about the drive mode "B" that you have covered in this video!
is it safe and sensible to keep changing to B for downhill only and back to D whilst driving?
Yes. The ECU programming will ensure that the engine is never overstressed. You can even put it in P at highway speed and it simply turns into a safe mode. This is also why it refuses to rev when you have just turned it on. You can also see how it tries to counteract my stupid driving style in the video.
@@LasseDeleuran hmm, great technology, thanks for the reply
@@LasseDeleuranSo there’s no need to press the brakes to switch between these two modes, right? Thank you Sir.
@@fhamdioglu Correct. You can even press "P" while in motion. Luckily the computer is smart enough not to lock up if you make that mistake.
Hi. A very good explanation. Congrats. Let me ask you a question: i was driving my car (Corolla Hybrid) down a hill. The battery was completely charged. When i selected the "B" position, The car made a very loud noise, like a monomotor airplane taking flight. Some mates related The same experience. Do you know what causes this noise? One guy said it is because the acumulated energy is being discarded.
Hi did you found an answer for your question yet?! Because i have the same question and im wondering what was that sound from or what is it!!
@@b07ussein Hi, man. I not only have received an answer so far, but also haven't found one by browsing The Internet.
Hi.... Thank you for your explanation its amazing!
But i have questions what about if i use gear "B" while going up hills or mountain is good or no?!!
On-throttle there is no difference. B-mode only differs off-throttle, such as when going downhill.
I have a Prius 2009, when the ABS has been replaced by a mechanics, putting the can on B mode will not slow the car as it was before replacing the ABS. any explanation why ?
Sounds like your mechanic screwed up something.
Good info. The charging increased while in “b” mode. I assume the engine assisting in braking was the cause of charging increase. Toyota’s official response is that it is engine braking does not charge the battery. I didn’t believe Toyota But after seeing you video b mode increasing charging because the motor is engaged.
Is using it detrimental to the car in any way?
My best guess is no. You are spinning the engine needlessly when using it. However. The engine will not be under load, so the added wear and tear on it is negligible.
@@LasseDeleuran exactly what I thought....I use B when i enter junctions or when I'm driving fast and use it like a downshift then back to D (upshift)when I accelerate...never do I leave it in B. The car slows down much quicker with less stress on the brakes....the reason I ask is because some guy was saying I'll kill my car doing that...I doubted it because why would toyota make mode in the car which ruins it...B is like a low gear on deceleration.
O BTW the effort you put into this video for people like me is astonishing...that lego model of the ct200h is awesome...exactly like mine...well done sir!!
@@pollumG there’s no wear on your brakes if you don’t press them hard. Use a light press for regen. Shifting to B is wasting energy turning the motor you could be using to charge the battery.
B is for descending long hills
@@aluisious in b mode slowing down charges the battery. Modern cars don't use fuel upon deceleration. Even toyota says you can use it to slow down and its not exclusive to long downhills..anyway you do you and I do me. I know for a fact when driving a bit spirited engaging in b mode when cornering tucks the nose in then put back in d mode again when accelerating out of corner or when you need to slow down fast because you're going a bit too quick. B mode has many uses if you know what you're doing.
Very helpful
Interesting.
Jesus christ this is FUCKING COOL wtf!
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HYBRID/LEGO NERD!