LEAFer
Well-known member
Not soon enough for me getting "antsy" alreadyBicster said:We'll find out how the regen works soon enough!
Not soon enough for me getting "antsy" alreadyBicster said:We'll find out how the regen works soon enough!
I think you are going to need a different example. I'd be willing to bet my $99 deposit that if you leave Lake Tahoe (say near the casinos) with a full battery you will never need to dump regen power on a trip to Sacramento, even though you start at elevation 6250 and end at elevation 50.garygid said:If the battery gets "full" (quite possible) and there is no place to "dump" 35 kW of power, the Regen is basically useless.
So, on the long trip home from Tahoe, the mechanical brakes will get ... VERY hot!
So, yes, brake heating is an important, even vital, safety issue.
Bicster said:On any downhill grade a car will increase in speed if allowed to "coast."
garygid said:EVD...,
At least one "auto maker" (Toyota) knows how to blend braking and Regen on one pedal.
About other "auto makers", I do not know.
garygid said:1. The pack can be empty, but the Regen current at the car's maximum, and you still need the mechanical brakes, especially when driving in heavy freeway traffic.
2. I believe that the Prius's mechanical brakes ARE electrically-controlled hydraulics, with mechanical-hydraulic backups. Yes, a quite complex system that seems to work well.
EVDRIVER said:I would venture that Toyota has more expertise here, in many areas.
LTLFTcomposite said:EVDRIVER said:I would venture that Toyota has more expertise here, in many areas.
And perhaps a bunch of patents?
LTLFTcomposite said:EVDRIVER said:I would venture that Toyota has more expertise here, in many areas.
And perhaps a bunch of patents?
The Prius does not have a CVT in any conventional sense of the term. It has a patent on the planetary gear system used in the transaxle (though not w/o dispute).LEAFer said:And Toyota has licensed Nissan's CVT (not sure if the Prius uses that one).
It has a 80 kW motor that gives a VERY powerful acceleration. The regeneration I only very little when you take the foot of the accelerator and it goes to maximum when you apply the brake.
John said:Does the regenerative braking increase proportionately depending on how much pressure is applied to the brake pedal?
Nissan said:Dear John,
Thank you for taking the time to personally contact us about your interest in the Nissan LEAF.
Details about regenerative braking are not released at this time. When more details are available we will update on the website http://www.NissanUSA.com.
We appreciate your time, and encourage you to share our contact details with friends and family. For your convenience, we can be reached:
By return email, through our website at http://www.nissanusa.com, or by phone at 877-664-2738.
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Sincerely,
Nissan Electric Vehicle Customer Support
***This email message is provided in response to your recent inquiry to Leaf Customer support so should not be considered unsolicited commercial email.
garygid said:For me, no variable Regen on the brake pedal ... means "no sale".
Much as I respect you and your opinions Daniel, I have to disagree. I LIKE the 'dead band' glide in the Prius, I just wish it was easier to find and hold. I use it all the time as I'm sure many other Prius owners do as well. If someone ahead starts to slow, I don't want to have to take my foot off the accelerator and move it to the brake for light 'slow down'. When traffic allows me to leave reasonable gaps, I don't touch the brake pedal until I need to physically stop the car at a light or stop sign. So I *want* a '3 position' accelerator pedaldaniel said:The only thing the Prius does wrong is putting a small amount of regen on the accelerator pedal to mimick an automatic. This results in making it very difficult to coast when you want to, since you have to find exactly the right pedal position. Separating the functions means you can go faster when you want to, go slower when you want to, and coast when you want to. With hard braking (regen) on the accelerator pedal, coasting is very difficult.
Not necessarily. Using NO energy means you aren't losing kinetic energy that you have paid for. Using 'minus' regen means losses going into and out of the battery. The best possible is maintaining speed or slowing very gradually due to rolling resistance AND using NO energy. 'Glide' a quarter mile to the red light rather than using fuel to travel 1/8th mile then regen to slow the next 1/8th. You will never recover as much energy regening the last half as you used to travel the first half (presumig no significant downhill slope of course).planet4ever said:Using minus energy is a lot better than no energy.
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