Ehhh, when I read this, I felt sorry for the author.
Unqualified claims which often are incorrect, mentioning
totally unrelated issues as if a towing violation ticket
has anything to do with EV towing at all....
There is only one simple suggestion: if you are not sure,
then make sure that the towed drive wheels are not on the
road. Does not matter if it is on a dolly or another way.
(I have towed a BMW *backwards* with its rear drive wheels
on the dolly without problem)
But you can also just get to know the EV a little better
so you know if you can tow without problem (My AC drive
S10 truck can be towed as fast as it can be driven, up
to 72 MPH without problem, except maybe a speeding ticket)
Other vehicles may need disconnection of driveshaft or
gearbox set to Neutral or otherwise...
Of course flatbed is the safest way, but also the most
expensive one to start with.
Motors heating up from turning is the first time I hear
and the only thing I can imagine is if your DC controller
starts feeding the EMF into the battery bank, though that
usually only happens when you are already over-revving
the motor...
usually when the motor turns fast, its internal fan that
is typical for a DC motor is also cooling well...
So, there are too many unaddressed/wrong/unrelated issues
to take this piece very seriously, even though the
general suggestion to do your research before buying and
transporting a vehicle is sound of course.
BTW, one thing they did not mention is box truck or
container transport of the EV if it needs to go long distance
and in container it can be transported by EV (train).
Cor van de Water
Director HW & Systems Architecture Group
Proxim Wireless Corporation http://www.proxim.com
Email: [email protected] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [email protected]
Tel: +1 408 383 7626 VoIP: +31 20 3987567 FWD# 25925
Tel: +91 (040)23117400 x203 XoIP: +31877841130
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of brucedp4
Sent: Wednesday, March 02, 2011 6:28 AM
To: [email protected]
Subject: [EVDL] Know how to tow your EV correctly
Ask for a flatbed tow-truck
http://gas2.org/2011/02/26/towing-an-electric-car-could-damage-its-motor
/
... Feb 26 2011 ...
Most electric vehicles do not have a transmission connecting its motor
to the driving wheels, nor does it have a neutral setting, which would
normally disengage the wheels from the motor. So, while a regular car
can be put into neutral to disable the drive-train before being towed,
an electric vehicle, like the Smith Newton, cannot. If the electric
vehicle (while turned off) is towed from the drive wheels, the motor
will continue to spin as the cooling system remains inactive. Due to the
friction from the spinning, this could heat the motor to a point where
it may be completely ruined. According to Bryan Hansel, chief executive
of Kansas City-based truck maker Smith Electric Vehicles U.S., a new
electric motor would cost him about $5,000 if it needed to be replaced.
Who wants to spend $5,000 on top of a towing violation ticket?
To avoid such an inconvenience, there is more than one solution. If you
are not going to spend the time dropping the driveshaft and towing from
the drive wheels, then tow from the idler wheels to prevent the motor
from spinning or ask for a flatbed tow-truck. You can also look into
electric vehicles whose manufacturers have designed models where this
nuisance won't be an issue. The Nissan Leaf and Ford Transit Connect EV
are front-wheel-drive, which prevents any damage that could be done by
towing. They also are both equipped with a gear box. This allows the
vehicles to be shifted into a "Park" or "Neutral" setting.
The first locks the driven wheels, while the latter disconnects the
driven wheels from the motor.
So if you are in the market for an EV, make sure you do your research
first. If you are already a lucky owner, watch where you park (or don't
park) and be aware of the instructions when towing your vehicle
correctly. [Source: Green Car Advisor (c) Important Media 2011]
{brucedp.150m.com}
--
View this message in context:
http://electric-vehicle-discussion-list.413529.n4.nabble.com/Know-how-to
-tow-your-EV-correctly-tp3331587p3331587.html
Sent from the Electric Vehicle Discussion List mailing list archive at
Nabble.com.
_______________________________________________
| REPLYING: address your message to [email protected] only.
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| Multiple-address or CCed messages may be rejected.
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| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
Unqualified claims which often are incorrect, mentioning
totally unrelated issues as if a towing violation ticket
has anything to do with EV towing at all....
There is only one simple suggestion: if you are not sure,
then make sure that the towed drive wheels are not on the
road. Does not matter if it is on a dolly or another way.
(I have towed a BMW *backwards* with its rear drive wheels
on the dolly without problem)
But you can also just get to know the EV a little better
so you know if you can tow without problem (My AC drive
S10 truck can be towed as fast as it can be driven, up
to 72 MPH without problem, except maybe a speeding ticket)
Other vehicles may need disconnection of driveshaft or
gearbox set to Neutral or otherwise...
Of course flatbed is the safest way, but also the most
expensive one to start with.
Motors heating up from turning is the first time I hear
and the only thing I can imagine is if your DC controller
starts feeding the EMF into the battery bank, though that
usually only happens when you are already over-revving
the motor...
usually when the motor turns fast, its internal fan that
is typical for a DC motor is also cooling well...
So, there are too many unaddressed/wrong/unrelated issues
to take this piece very seriously, even though the
general suggestion to do your research before buying and
transporting a vehicle is sound of course.
BTW, one thing they did not mention is box truck or
container transport of the EV if it needs to go long distance
and in container it can be transported by EV (train).
Cor van de Water
Director HW & Systems Architecture Group
Proxim Wireless Corporation http://www.proxim.com
Email: [email protected] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [email protected]
Tel: +1 408 383 7626 VoIP: +31 20 3987567 FWD# 25925
Tel: +91 (040)23117400 x203 XoIP: +31877841130
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of brucedp4
Sent: Wednesday, March 02, 2011 6:28 AM
To: [email protected]
Subject: [EVDL] Know how to tow your EV correctly
Ask for a flatbed tow-truck
http://gas2.org/2011/02/26/towing-an-electric-car-could-damage-its-motor
/
... Feb 26 2011 ...
Most electric vehicles do not have a transmission connecting its motor
to the driving wheels, nor does it have a neutral setting, which would
normally disengage the wheels from the motor. So, while a regular car
can be put into neutral to disable the drive-train before being towed,
an electric vehicle, like the Smith Newton, cannot. If the electric
vehicle (while turned off) is towed from the drive wheels, the motor
will continue to spin as the cooling system remains inactive. Due to the
friction from the spinning, this could heat the motor to a point where
it may be completely ruined. According to Bryan Hansel, chief executive
of Kansas City-based truck maker Smith Electric Vehicles U.S., a new
electric motor would cost him about $5,000 if it needed to be replaced.
Who wants to spend $5,000 on top of a towing violation ticket?
To avoid such an inconvenience, there is more than one solution. If you
are not going to spend the time dropping the driveshaft and towing from
the drive wheels, then tow from the idler wheels to prevent the motor
from spinning or ask for a flatbed tow-truck. You can also look into
electric vehicles whose manufacturers have designed models where this
nuisance won't be an issue. The Nissan Leaf and Ford Transit Connect EV
are front-wheel-drive, which prevents any damage that could be done by
towing. They also are both equipped with a gear box. This allows the
vehicles to be shifted into a "Park" or "Neutral" setting.
The first locks the driven wheels, while the latter disconnects the
driven wheels from the motor.
So if you are in the market for an EV, make sure you do your research
first. If you are already a lucky owner, watch where you park (or don't
park) and be aware of the instructions when towing your vehicle
correctly. [Source: Green Car Advisor (c) Important Media 2011]
{brucedp.150m.com}
--
View this message in context:
http://electric-vehicle-discussion-list.413529.n4.nabble.com/Know-how-to
-tow-your-EV-correctly-tp3331587p3331587.html
Sent from the Electric Vehicle Discussion List mailing list archive at
Nabble.com.
_______________________________________________
| REPLYING: address your message to [email protected] only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
_______________________________________________
| REPLYING: address your message to [email protected] only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
