Hypermiling | Pulse & Glide | MPG | Fuel Economy | Hybrid | Watch & Learn The Technique :)
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- Опубликовано: 9 фев 2016
- Try this technique to increase your fuel economy in any vehicle! Have you been successful with this? Let me know your experiences in the comments below :-)
Sorry, but you are not doing it right
You are doing Burn and coast
To glide, you have to be under 80KM/h and slightly push the gas pedal, just until the needle stop charging the battery (drag) but do not use electric motor (no arrows will be seen in the energy monitor)
Check other existing youtube videos for accurate information.
OK, I see what you mean @enostrum... I do think that either method should work to obtain max efficiency unless the hybrid battery is already fully sharge (which has only ever happened to me when descending a huge mountain LOL)
Your method IS efficient but not AS efficient and real pulse and glide.
You are recharging slighty the battery and that is causing a small drag (you lose speed faster).
In a real pulse n glide, you slighty push the pedal until you get no drag, so your glide last longer and efficiency increases.
Which is nearly impossible in a 2013 Prius v
enostrum :I use hypermiling on my VW Golf plus 1.6 Diesel , mostly back country driving , would this pulse & glide thing work best on slight down hill / wind in your back & in a slip stream ? My mpg (UK ) is 62 mpg (52 us ) or just about 800 miles / tank (12 UK gal ) . I find the important thing is smooth / steady & reading the road well ahead , try to anticipate in advance , i find 48sh mph is about right what do you think ?
i just started driving hybrid and i find it easy to go the speed limit with in eco mode then go in ev and just keep the speed stady until i need to speed up or coast to a stop light don't know what that is called.
When the engine is running (pulse) it charges the Hybrid Battery and accelerates the car. When idling in the charge zone you are only returning a small proportion of charge compared to the pulse.
Glide means cancel out the regen/ charge so the car glides. Use your right foot gently on the accelerator until the needle is between Charge and Eco.
At urban speeds pulse and glide works even better because it is easier to maintain the target speed.
Nice clear video otherwise.
Thanks! I'll try that...
You made all this shit up and you're pretending to be an expert.
You can't pass safely for miles where I live and I frequently end up behind long lines of 10+ vehicles yo-yo speeding as I call it. I am in a 65,000 lb speed limited truck and it sometimes takes 45 min to get an opportunity to get around them. It is very frustrating. It does little to effect my 39L/100km fuel mileage lol
I tried this and am getting about 7MPG worse than when I was driving normal haha
Got a Hybrid rental from the airport a few days ago out here in CA on vacation and Prius everywhere. Got bout a 110 mile trip back to SF to fly home and found this a great tip for max MPG. The input of the throttle ON/OFF is a genius tip for MPG efficiency. The Radar cruise control is perfect combo for setting car distance. Will be setting cruise on the highway. Find a good cruising speed and drop the MPH a few using the pulse and drive technique is a no brainer for Efficienc. Use cruise control rather than your foot for much more precise ON/OFF throttle input signal. Thanks for the video
If you set cruise control you cannot glide to a speed less than the cruise control is set to.
@@aluisiousLower your cruise speed, simple
What MPG are you getting from the 200h using this technique?
What MPG are you getting when driving it normally on the same roads?
I also have a 200h and am getting 47-48 MPG steady doing 40 miles mainly hilly highway with some stop and go traffic during rush hour. I don't hypermile in this style but I do "look ahead" a lot so my driving is very smooth and I max out my speed at 65.
Lexus' description of 60% max on the gas pedal and 40% max on the brake pedal is a good starting point but I now avoid going into the power section and ALWAYS let go of the gas pedal then rest my foot back on it to RIDE it in charge mode as long as I can.
I am currently experimenting with the best amount of brake for re-charge.
I wish the 200h had an "eco score" display like the Prius. They could have put it on as a hidden feature.
PS If you had put Lexus 200h in your description I would have found this much sooner.
+TheTunneys Hey thanks for the comment! I've averaged slightly over 52MPG in over 140k miles of driving. Inflate the tires to close to max pressure on sidewall and pulse & glide to get that :)
Just about to pick up a hybrid. What was your result from your experiment above.
@@MikeYoungRealEstate You're a fool to overinflate your tires.
@@aluisiousBecause?
Isn't 50mph better for this purpose? I dont drive hybrid but all of my gas cars i've had through the years gave best economy at 50mph(80km/h) yes i know it os totally different concept as a machine but still...
Well i don't have a hybrid just a '14 ford focus sedan auto and on flat highway at 60 with cruise control on i get a max of 50mpg
Auris MY15 Euro - best mpg 65.7 mpg or 3.58 l/100 km - how? 100% Eco Mode,
always use the battery between 40% and 80%,
always keep the needle at the half of the first eco section (on electricity or gas)
always park your car with 40% battery life
if there's a lot of accelerating and braking involved, use the battery between 80% and 90%.
Thank you sir ❤❤❤
Im going to try this i just picked up a ct200h
Nice! Lemmie know how it goes....
Great. But coming from Sti and 350z i find myself going into power too much. Should i keep it in eco? some people are saying they get better mileage on normal.
This is not efficient. The gas you don’t use when you let off you need to use more energy to get back up to speed rather than keeping a constant speed.
Pulse and glide increases fuel consumption on my 2019 Prius...
I recommend pulse-glide periods to be longer. You just switch in 2-3 seconds. It is not efficient such a short period, initial ignition consumes much then you should decrease initial ignitions.
There is no "initial ignition" on a running engine. In a Toyota hybrid it's brought up to speed by the electric motor, and in a gasoline car the transmission is driving the engine while gliding.
I'd rather keep my eyes on the road at all times
😆
As you travel on a rural highway you should most definitely keep gauge out of the power mode as you say. But you should not go down to charge mode either, as there will be losses.
At charge mode power goes through the generator losing about 10%. At EV mode the battery may lose about 5 to 20%. And the electric motor lose about 5 to 10%. All these three small losses ad up to one big loss. These efficiency figures are just my guesses just to give you an idea of what happens in charge mode.
Some hybrids like the early ones of prius got a top speed at about 30mph for EV mode. At higher speeds the ICE is forced to engage. I'm not sure whats the best hypermiling technique for these cars but probably keep gauge in ECO mode and only in charge mode if you need to slow down for any reason.
A theory I got for hypermiling hybrids who CAN handle higher speeds in EV mode are: No.1 as usual keep gauge in the ECO range. No.2 keep the gauge level in ICE on and charging mode. When battery is full raise the speed a bit then ease of the gas if possible to coasting while the speed drops a bit. When you dont want to go slower gently add gas into EV mode. When the battery is empty the car will enter into ICE on and charging mode again. Dont try this with traffic behind as they will be confused of your intention and probably annoyed.
Low speed will also save energy. If you got patience and traffic allows it then rather go 50 than 65 mph.
Yes, I agree with what you say, especially that part about keeping the car out of charge mode when the battery is full, tho tat rarely happens. Thanks for your insight!
This wouldn't work in my car because my transmission, which is an automatic, saps a tremendous amount of momentum from the car when in drive. I would have to shift to neutral to for this to be effective, then the extra wear in the transmission would negate any gains from fuel savings. Also, while true that modern cars cut fuel injection while the throttle is completely closed, this only happens when the engine speed is sufficiently high, which is to say more than 1250-1500 rpm depending on the car. For example, in drive, my car cuts fuel injection as early as 55 mph and it starts injecting fuel again at around 52-54 mph and it keeps injecting fuel at idle rate at every speed less than 52 mph, unless I downshift to a lower gear. In addition, the fuel injector shutoff is not instantaneous as soon as you release the pedal. It takes about 2-3 seconds for the injectors to actually shutoff, if the engine speed is high enough.
In theory, this is undeniably more efficient, but in practice, especially for most automatic gearboxes, this isn't very beneficial. Also, the constant changes in engine load probably contribute to engine wear as well as oil degradation, although I'm not sure about these things. This particular car (CT200h) is set up very well for this style of driving, but not every car is.
It's amazing that these comments are full of non-technical people pulling shit out of their ass and pretending to be experts.
This technique is working amaizingly well at low speeds. You mut just think that internal friction inside engine consumes more energy than car mouvemennt. I succesfully use it on VW VR6 golf . about 25 % economy on low traffic roads 45 mph average. Without cutting the engine for security reason, so engine stays idle durong glide period in neutral gear ( in France we mostly have manuals transmissions)
c'est intéressant, je vais tester ça
This video should be titled how to make people car sick.
ㅋㅋㅋㅋㅋㅋ😂
Good video but you failed to show any result and is before and after mpg. Mpg or cost to fill up would be the best indicator to show If this actually made a saving..
I do similar in my 2016 prius eco and get about 75mpg ;)
WOW. How is that possible @Felix? Is the driveline that much more efficient?
Mike Young Real Estate lighter and lower drag perhaps. I've driven Honda hybrids and they manage charge/discharge slightly differently.
What kind of speeds are you driving to get an MPG number like that?
Typically city driving. Mostly stop and go with stretched at 45mph where I can pulse and glide.
if you check out the visitor posts to prius on facebook people can regularly get that high and a few can achieve over 80mpg. facebook.com/prius/posts_to_page/
Pretty sure this technique is for hybrids only
They're all these videos about pulse and glide and nobody really explains those things especially the pulse and this video was no different
Are you filming while going 60 mph?
Gain speed downhill, let the uphill slow you down a bit. Pulse and glide only works on hills. Important detail.
not correct. more energy is consumed this way.
It is like flying a plane, your argue is dropping from 20k fts to 10k fts is free - true. But you spend fuel to climb back up to 20k fts, more than if you stay at 20k fts at all time.
steady speed is the best not up and down.
In a regular gas car it is. In a hybrid, you want to use the pulse and glide method to utilize the electric motor and charge the battery. Therefore, it is more efficient to do so in a hybrid. Hybrids are not as efficient on the highway because they are using the gas engine more
Yes, pulse and glide will help a full electric car, as well better use of gas/brake pedals.
No it won't. The point of pulsing is to get a gasoline engine to operating in it's more efficient combustion range, higher throttle opening and higher torque. This is pointless in an electric motor.
you're accelerating too gently
I am if you don't mind paying for it at the gas pump :)
Mike Young Real Estate you're paying more because you're not maximizing efficiency
This video is wrong.
Bullshit... for the sake of extra 4 mpg ?
Accelerating your car again and again consumes more petrol than driving it with the same speed.
Thats Not True @JackoBanon1
Causes of pulse-and-glide energy saving[edit]
Much of the time, automobile engines operate at only a fraction of their maximal efficiency,[24] resulting in lower fuel efficiency (or what is the same thing, higher specific fuel consumption (SFC)).[25] Charts that show the SFC for every feasible combination of torque (or Brake Mean Effective Pressure) and RPM are called Brake specific fuel consumption maps. Using such a map, one can find the efficiency of the engine at various combinations of rpm, torque, etc.[23]
During the pulse (acceleration) phase of pulse and glide, the efficiency is near maximal due to the high torque and much of this energy is stored as kinetic energy of the moving vehicle. This efficiently-obtained kinetic energy is then used in the glide phase to overcome rolling resistance and aerodynamic drag. In other words, going between periods of very efficient acceleration and gliding gives an overall efficiency that is usually significantly higher than just cruising at a constant speed. Computer calculations have predicted that in rare cases (at low speeds where the torque required for cruising at steady speed is low) it's possible to double (or even triple) fuel economy.[22] More realistic simulations that account for other traffic suggest improvements of 20% are more likely.[23]
These two- or three-fold improvements in fuel economy are possible only at city driving speeds of say 25 or 35 miles/hour. This is because cruising (steady speed) at such low speeds is very inefficient since the torque needed is so low that the efficiency read on a BSFC map is very poor. Pulse and glide significantly improves this. Unfortunately, city driving often involves many stops at signals and stop signs which were absent in the computer simulation[22] which showed such multiple fold improvements. In other words, in the real world one is unlikely to see fuel efficiency double or triple. Such a failure is due to signals, stop signs, and considerations for other traffic; all of these factors interfering with the pulse and glide technique. But improvements in fuel economy of 20% or so are still feasible.[22][23][26]
See the rest here: en.wikipedia.org/wiki/Energy-efficient_driving#Burn_and_coast
This is wrong on so many levels
Lol what a joke...