Cedric Lynch finds regen a big benefit on his bike, but then he's got very
little aero drag (It only uses a couple of hp at 60 mph). He tries to do
most of his 'slovwing down' with regen and controlls this by twisting the
twistgrip in the reverse direction (long, long before Vectrix 'invented' the
idea).
Paul Compton
www.evguru.co.uk
www.sciroccoev.co.uk
www.bvs.org.uk
www.morini-mania.co.uk
www.compton.vispa.com/the_named
----- Original Message -----
From: "damon henry" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, June 22, 2007 4:44 PM
Subject: Re: [ElectricMotorcycles] Kelly's controller?
There are two possible problems with regen on a motorcycle. The first
depends on the motor type. Permanent Magnet and Sepex motors do regen
well, series wound motors do not. So the first issue may or may not be an
issue depending on your motor type. Personally I have a series wound
motor. The second issue has to do with the dynamics of braking a bike.
All the regen will be applied to the drive wheel which means that all your
braking force is applied to your back wheel only. Another minor issue
would have to do with the brake lights, but that should be easy enough to
overcome. I think that the biggest deal is that regen is not going to
gain you much on a motorcycle. Coasting is much more effecient than
regen, so if you are coming up on an intersection that you need to stop
for coast into it as much as possible. If you are going down hill coast
and pick up a little extra speed. Basically, most of the benefits of
regen are available by changing the way you ride. In general, most people
with regen on electric vehicles report that a best they get a 10% range
increase, and often much less than that. So not being practical is a
combination of some techincal details as well as not much pay off.
Having said that, I have regen on my Honda Insight, and I think it is
great. There is no reason I would not want to have regen on my motorcycle
if it were given to me for free and someone worked out all the details.
It's just that to pay for it and get it all working is not worth the
payoff to me.
I believe that Garret currently has a motorcycle for sale on the EV Tradin
Post with regen for $2800. It's a nice looking bike and at the price a
smokin deal for all that you are getting. If I didn't already have my own
running EM and an electric pickup in the works I'd be sorely tempted to
buy it myself.
damon
From: "Travis Gintz" <[EMAIL PROTECTED]>
Reply-To: ElectricMotorcycles <[email protected]>
To: ElectricMotorcycles <[email protected]>
Subject: Re: [ElectricMotorcycles] Kelly's controller?
Date: Fri, 22 Jun 2007 08:24:31 -0700
Why wouldn't it be practical? I mean, you're essentially recharging
the batteries and using that to supply some braking as well... is that
correct?
I think I'm going to contact the manufacturer and get more specs and
information and maybe the controller software so I can play with some
setups.
Just in the research phase right now.
I've seen all the VFR's out on austinev and checked out Ben's... amazing
job.
what motor should I use...
On 6/22/07, Mike <[EMAIL PROTECTED]> wrote:
>I got a VFR 700 for free... I was looking for a newer sport bike, but
>its got a clear title and all the parts. Figure If I outgrow it, sell
>it, or part it out and get a different bike and recycle.
>
>I like the old VFR's too...
Sounds like the perfect bike then!
>The kelly controller seems pretty inexpensive, just wondering
>performance... Money isn't an issue, regen would be nice, but other
>models its really spendy.
I think you should buy one so we all have a reference point.
Actually, my bank account is on zero right now after getting new
batteries into my bike otherwise I'd try one of the Kelly's with
regen. There seems some debate as to weather regen on a bike is
practical.
Mike
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