If you're building from scratch, wouldn't it be just as easy to insulate
the battery and provide a small electrical heat source? If well
insulated, how much power would it take? 100W or so, or am I completely
off.
Peri
------ Original Message ------
From: "Robert Bruninga" <[email protected]>
To: "Peri Hartman" <[email protected]>; "Electric Vehicle Discussion
List" <[email protected]>
Sent: 29-May-19 8:01:46 AM
Subject: RE: [EVDL] BYD's(style.cn) inflated range ratings - how about
fossil fuel heaters?
I wouild like to see the cost/carbon/benefit analysis of providing
fossil-fuel catalytic heaters in cold climatges. Yes, there is double to
triple energy savings with heatpumps but they still do not work effectively
at cold climates.
Me thinks that using a fossil fuel 99.9% efficient heater for people and
battery might be worth studying in cold areas.. And the tradeoff should be
based on total carbon emissionis, not just cost. And, of course, it will
change over time as the grid gets cleaner.
-----Original Message-----
From: EV <[email protected]> On Behalf Of Peri Hartman via EV
Sent: Wednesday, May 29, 2019 10:43 AM
To: Electric Vehicle Discussion List <[email protected]>
Cc: Peri Hartman <[email protected]>
Subject: Re: [EVDL] BYD's(style.cn) inflated range ratings bite them in the
arse
I wonder why they didn't' design a battery warmer into the case (at least I
assume they didn't). Seems that would have made a tremendous difference in
this case.
------ Original Message ------
From: "Mark Abramowitz via EV" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Cc: "Mark Abramowitz" <[email protected]>; "brucedp5"
<[email protected]>
Sent: 28-May-19 11:54:38 PM
Subject: Re: [EVDL] BYD's(style.cn) inflated range ratings bite them in the
arse
It’s not about whether or not the range is lower at lower temperatures, or
what you get in your car, but the accuracy of the claims being made by
vendors of zero emission technologies, and the commitments they make to
customers.
BYD has some *great* products and is run by sone great folks, but this kind
of thing undermines the ability to transform fleets to zero emissions. It
hurts all of us working in the field when companies fail to meet the
contracted performance specs in their contracts.
And this is not the only similar horror story I’ve heard (though not
necessarily about BYD).
There is really no excuse for this. I will likely see BYD’s President later
this week, and will be expressing my disappointment.
- Mark
Sent from my Fuel Cell powered iPhone
On May 28, 2019, at 7:58 PM, Rod Hower via EV <[email protected]> wrote:
Anybody that drives an EV, even a Volt that is a series hybrid realize
the cold temperature limitations, especially if you like to keep it warm
and cozy on cold days. I get 46 miles EV on my 2014 Volt on the best
days, 24 miles on the coldest nastiest days when I like to keep the car
warm and toasty. Not a problem for me since I commute 21 miles and plug
in at work and I also plug in at home with 240V so I never use gas. My
best guess is this BYD range was estimated by sales and marketing while
the engineers were cringing in the corner knowing it was complete BS, but
the accounting department and upper management looking for higher returns
on investment realized range needed to be increased to meet contracts
with bus fleets that required the higher range, regardless of them
actually needing them. The good news is that the majority of bus
manufactures see the writing on the wall and are planning for an all
electric fleet knowing that will be demanded soon by many fleet orders.
The immediate future for bus transit is electric and most manufactures
are already gearing up for that. With the advancements in batteries,
motors and controls, most fleet operators realize that electric is
cheaper to maintain than diesel or natural gas. The transitions will not
happen overnight, been when the people paying for overall cost of fleet
operation is much cheaper on electric they will switch, and it's coming
soon < 5 years.
On Tuesday, May 28, 2019, 10:34:59 PM EDT, brucedp5 via EV
<[email protected]> wrote:
https://electrek.co/2019/05/24/byd-indianapolis-electric-bus-range/
BYD installing wireless charging in Indianapolis to boost
disappointing range of its electric buses May. 24th 2019
[image
https://i2.wp.com/electrek.co/wp-content/uploads/sites/3/2019/05/indy
gobydbus.jpg
e-bus
]
Electric bus maker BYD has to install and pay for a wireless
charging infrastructure upgrade in Indianapolis after its buses
experienced “lower-than-expected distances on one charge” during
testing.
Indianapolis Public Transportation Corporation IndyGo announced it
reached an agreement with BYD to get the new infrastructure. BYD
will install wireless charging hardware for the buses, in addition
to three wireless inductive charging pads along bus routes.
During testing, IndyGo realized low temperatures were causing a
dramatic dropoff in predicted range. Justin Stuehrenberg, IndyGo
vice president of capital projects and planning, said:
“We anticipated that vehicle range would depend on temperature,
but the contract requires a 275-mile range at 0 degrees. Our team
identified several options to address the issue and worked closely
with BYD to determine the most feasible resolution. At the same
time, we made it clear to the company they must be accountable to
our contract. Numerous test days this spring resulted in range
performance at and above the contractually required 275 miles on a
single charge. To date, the best range of any one test was 307 miles on
a single charge.”
Many of those tests didn’t approach the required 275 miles, usually
ending somewhere in the low 200-mile range, as the range report from
IndyGo reveals. On one frigid day, range was limited to 152 miles.
_______________________________________________
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Please discuss EV drag racing at NEDRA
(http://groups.yahoo.com/group/NEDRA)
_______________________________________________
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
_______________________________________________
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
