[EVDL] Miles consumed for altitude

I saw a reference to 7 miles or so range loss for each 1000' of elevation rise. I calculated about 4 miles for raising a 2000 Lb car 1000'. Hummh, VOLT weighs 3500 lBs, so I guess that is in the ballpark of 6 miles ANyone seen a real reference? bob -- next part -- An HT

Re: [EVDL] Miles consumed for altitude

Wouldn’t temperature have an impact on what that range drop would be? - Mark Sent from my Fuel Cell powered iPhone > On Oct 12, 2020, at 9:31 PM, Robert Bruninga via EV wrote: > > I saw a reference to 7 miles or so range loss for each 1000' of elevation > rise. > I calculated about 4 miles fo

Re: [EVDL] Miles consumed for altitude

There are two major components. Vertical height is a major factor, as one must overcome gravity (g=9.8 m/s2). Horizontal distance traveled 'as the crow flies' is also a major factor, as (most) road capable vehicles cannot move themselves in a direct vertical manner. Consider a low sloping ramp 10

Re: [EVDL] Miles consumed for altitude

ssage -- From: "Haudy Kazemi via EV" To: "Electric Vehicle Discussion List" Cc: "Haudy Kazemi" Sent: 13-Oct-20 7:26:12 AM Subject: Re: [EVDL] Miles consumed for altitude There are two major components. Vertical height is a major factor, as one must overcome grav

Re: [EVDL] Miles consumed for altitude

quot;Electric Vehicle Discussion List" > Cc: "Haudy Kazemi" > Sent: 13-Oct-20 7:26:12 AM > Subject: Re: [EVDL] Miles consumed for altitude > > >There are two major components. > > > >Vertical height is a major factor, as one must overcome gravity (g=9.

Re: [EVDL] Miles consumed for altitude

A while back, I proposed to the Bolt Forum that they use the conversion formula from foot-pounds to kwh to figure loss of range when climbing hills and mountains. Several tried it and reported fairly accurate numbers. So, it's anecdotal but reasonable. The formula is change in elevation (ft) x (

Re: [EVDL] Miles consumed for altitude

Maybe I'm missing something, but it seems to me that this is largely a moot point unless you plan to never descend from the higher ground. A well designed EV should recover a large portion of the additional expended energy via regeneration on the descent, n'est-ce pas? http://evdl.org/pages/ev

Re: [EVDL] Miles consumed for altitude

The altitude question came up while I was developing the proposal to put 120v EV Outlets at Appalachian Trailheads in Maryland During an 8 hour day hike, a car plugged into 120v can gain about 36 miles for the trip home, PLUS the altitude potential energy gained. So, for a 2000' trailhead, then the

Re: [EVDL] Miles consumed for altitude

On 10/13/20 11:34 AM, EVDL Administrator via EV wrote: Maybe I'm missing something, but it seems to me that this is largely a moot point unless you plan to never descend from the higher ground. A well designed EV should recover a large portion of the additional expended energy via regeneratio

Re: [EVDL] Miles consumed for altitude

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Re: [EVDL] Miles consumed for altitude

Regeneration is only about 20% efficient. It saves you more power to coast (not expend power) than to regenerate (try and re-capture power you've already spent at 20% efficiency). True, if you are high up, you can regain a lot of power, because you have a lot of potential energybut it too

Re: [EVDL] Miles consumed for altitude

On 14 Oct 2020 at 6:09, Jay Summet via EV wrote: > Regeneration is only about 20% efficient. So they say - at least here on the EVDL. I've read similar declarations for decades. But those statements aren't in accord with the data in the link I provided. http://evdl.org/pages/evergreen.html

Re: [EVDL] Miles consumed for altitude

I think this article does a good job describing the efficiency,https://electrek.co/2018/04/24/regenerative-braking-how-it-works/ On Wednesday, October 14, 2020, 07:41:05 AM EDT, EVDL Administrator via EV wrote: On 14 Oct 2020 at 6:09, Jay Summet via EV wrote: > Regeneration is only

Re: [EVDL] Miles consumed for altitude

ve cabin heat on for that hour of travel. Peri << Want to know about the effects of leaf blowers ? https://quietcleanseattle.org/ >> -- Original Message -- From: "EVDL Administrator via EV" To: "Electric Vehicle Discussion List" Cc: "EVDL Admi

Re: [EVDL] Miles consumed for altitude

These people were able to get up to 18% on an i-MiEV measured on a dyno https://www.mdpi.com/2032-6653/5/2/494/pdf Jay On 10/14/20 7:38 AM, EVDL Administrator via EV wrote: On 14 Oct 2020 at 6:09, Jay Summet via EV wrote: Regeneration is only about 20% efficient. So they say - at leas

Re: [EVDL] Miles consumed for altitude

EVDL Administrator via EV wrote: On 14 Oct 2020 at 6:09, Jay Summet via EV wrote: Regeneration is only about 20% efficient. So they say - at least here on the EVDL. I've read similar declarations for decades. But those statements aren't in accord with the data in the link I provided. http://

Re: [EVDL] Miles consumed for altitude

That says an increase of 18%! Look at figure 23. On Wednesday, October 14, 2020, 10:09:41 AM CDT, Jay Summet via EV wrote: These people were able to get up to 18% on an i-MiEV measured on a dyno https://www.mdpi.com/2032-6653/5/2/494/pdf Jay On 10/14/20 7:38 AM, EVDL Administra

Re: [EVDL] Miles consumed for altitude

    In Colorado, you care about the loss of range when you change altitude because you may not have enough range to; A) get to your destination at the higher elevation, or, B) make the return trip from some location at lower elevation.     For example, if you were to drive you brand new Leaf f

Re: [EVDL] Miles consumed for altitude

On 15 Oct 2020 at 10:30, Bill Dube via EV wrote: > The 20% "EVDL" number represents the typical energy gain from > having regen in mixed driving, versus not having regen and throwing the > braking energy away to your brakes. Based on what I experienced driving my > Leaf in Colorado, I would guess

Re: [EVDL] Miles consumed for altitude

> From: Lee Hart > You're rarely going to drive up a mountain so > steep and long that you *double* your energy consumption going up, and > expend *zero* energy coasting back down. This is pretty well backed up by a hundred years or so of driving experience. When was the last time you budgete

Re: [EVDL] Miles consumed for altitude

One more thing. Someone on here a year or so ago reminded us that the best time to use regen is when you have no choice but to stop, but then do it EARLY! As soon as you see the stop, dont arrange your coast so that you slowly slow down to the end, but get on the REGEN immediately and take out all

Re: [EVDL] Miles consumed for altitude

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