Optimal Regenerative Braking, Explained (episode 14)

This week we look at how motors can be used for regenerative braking and the unintuitive reason why friction brakes can make them more efficient. As always, like, comment, subscribe, have a great day. but only if you want to. P.S. sorry if the meme density was too high.

footnote: 100% duty cycle corresponds with the generation method described in the first half of the video.

[mrrkrr]

Watched so many garbage, surface level videos before finding this one which actually does a good job of explaining things. Thanks so much for making this and explaining everything so well!

[calvinso]

This is by far the best video I found about regenerative braking

[chandan-qxbr]

bro where are you only one playlist the world deserves people like you please come back and do more videos its my humble request. oh god you're great man and this is the end of this playlist

[blackmanops]

By far the best explanation of regen braking. Thank you.

[rafaobrs]

that series is awesome! I can't even imagine the tremendous amount of work you put in those animations! Thank you for that! If you are looking for other topics, I think there is one thing that no one is trying to explain anywere, at least I could not find it: How to measure/calculate the rotor flux angle on multi pole motors? This might be something simple but I can't understand, it even seems more complicated when I realize most motors have different numbers of poles in relation to the number of stator slots, I simply don't get it. If you know any documentation about it, please leave a link. Thank you!

[Ritiange]

OMG this is the best video regarding regenerative braking, thx for the amazing video!!!

[pokpikchan]

I was trying to charge a battery by running on a treadmill. This is exactly what I was looking for. Thanx

[aaronsingh]

I was having some questions on this subject..i accidentally came across your video..and I'm glad i did. Thanks for your effort. It is a great help.

[teo]

Absolutely fantastic channel. Subscribed.

[MEGroup]

Why did the videos stop? Great video series!

[tamashamas]

Amazing videos! You deserve all the praise these comments sections are.
Question about regen, isnt the shorting of the leads for boosting the same thing as the unforced phase in space vector modulation? Does that mean that during each unforced phase there is heaps of energy being pushed back and forth into the inductors which is undesirable as you had previously mentioned?

[맡인]

Capturing the currnet in a loop was real something 😂

[saurabhborude]

Why don't you upload videos anymore? 😕 Your videos are very informative!

[aryamallick]

THANK U SIR FOR THIS AWESOME CONTENT . BUT U COULD INCLUDE SOME SLIP TORQUE CHARCTERIASTICS TOO .

[bernardcharlesworth]

Be interested in how a super capacitor could be used to improve energy transfer to battery.finding the regenative pulses very choppy which can't be good for chemisty

[iraqi]

👌 that was intensive, yet very neat : )

[thorlancaster]

It'd be nice if there was a setting where the car could only use the brake pads when absolutely necessary, energy losses be damned.
Since the motor will be the only rear braking source for my e-bike, I'll have to do this. I wonder what the real-life difference in efficiency will be between:
1: Limit braking torque so it doesn't hurt energy recovery
2: Limit braking torque only when you're shorting all 3 phases together
3: Never limit braking torque, even if you have to shove energy into the motor to help brake faster.

[gabedarrett]

9:08 I didn't know regenerative braking had controllable torque!

[TheNichols]

I loved the video and you do a great job of showing how the regenerative braking system works. However, I must admit that I'm a little ticked off by the explanation. I was under the impression as a new electric car purchaser that I would be buying a car that had some inherent benefits such as less maintenance on brakes due to regenerative braking. Personally, I like the idea of recharging when I release the brakes but I don't want for the car to ever use the pads and would rather sacrifice the added battery power for longer brake life. My car will go 226 miles on a charge so I have more than enough to get where I am going under normal driving conditions.

I have read the manual on my 2021 Nissan Leaf SL Plus and it doesn't really tell me exactly at what point the pads are being apply other than when I depress the brake pedal. I'm not sure whether to use ePedal or B drive mode or just drive in normal D mode. The user manual is not clear.

[leavoa]

Hi, great video!
Really appreciate the time you take to make these videos and animations!

Quick question, at 2:20, shouldn't it be Kv, instead of Kt?