โNov-22-2019 03:35 PM
โDec-06-2019 03:38 PM
โDec-02-2019 05:50 AM
JRscooby wrote:JaxDad wrote:
Mechanical reason # 1, EV's have motors connected directly to the wheels, if the wheels turn, so do the motors.
Your point? I know of applications where motors, and even more generators, spin with no electrical power or load applied. Maybe some friction in the bearings, the power needed to start/stop the mass spinning but don't see any problem unless the speed gets to high. And with direct drive, the only way to overspeed the motor would be to tow at higher speed than the car was designed to operate.Reisender wrote:
I don't know what happens when neutral is selected in our EV's but it is definitely a free wheeling feel. One can shift back and forth on the fly while moving. As soon as it is in drive you can feel the regen. I have no idea what is happening mechanically though. No idea if it could be harmed while towing.
I would think that a clutch or mechanical disconnect between motor and wheel would be a unnecessary place for wear. All that would be needed to freewheel would be disconnect electricity from motor. The motor would still be making electricity, but without the resistance of battery, or any other load, it would be same as freewheeling.And the car has to be on and running or it applies the parking pall.
Could you explain? With direct drive any time the wheels stop, like at a light, the motor is not "running" Does the pawl engage at a stopsign?
โDec-02-2019 04:59 AM
JaxDad wrote:
Mechanical reason # 1, EV's have motors connected directly to the wheels, if the wheels turn, so do the motors.
Reisender wrote:
I don't know what happens when neutral is selected in our EV's but it is definitely a free wheeling feel. One can shift back and forth on the fly while moving. As soon as it is in drive you can feel the regen. I have no idea what is happening mechanically though. No idea if it could be harmed while towing.
And the car has to be on and running or it applies the parking pall.
โDec-01-2019 06:23 AM
bdosborn wrote:As long as you use metric units.
Why not just convert ecar units to gas car units? Much easier to relate to for most people
โNov-30-2019 08:35 AM
Harvey51 wrote:
โone killowatt gets you about 6 ish kilometers in most EV's. โ
Unit confusion in this topic!
The kilowatt is not a unit of energy. It is a unit of power - how fast energy is consumed. Analogous to a gasoline carโs gallons per hour.
The unit of electric energy is the kilowatt hour. Analogous to gas carโs gallon of gas.
Driving an electric car a kilometre requires some amount of energy. How many kilowatt hours is it? How much does a kilowatt hour (KWH) cost? This is indicated on any electricity bill. It may be ten cents plus another ten cents delivery charge.
โNov-27-2019 06:40 PM
Mike134 wrote:
There's always this method
https://insideevs.com/news/382196/raptor-charge-model-3-towing/
โNov-27-2019 09:58 AM
โNov-27-2019 09:42 AM
time2roll wrote:
No EV has a mechanical disconnect. If the wheels turn, the motor turns.
I keep hoping someone will take the risk on a well used and cheep EV and go cross country and post a report.
โNov-27-2019 09:36 AM
โNov-27-2019 07:59 AM
JaxDad wrote:JRscooby wrote:time2roll wrote:
There are exactly ZERO EVs rated to be towed 4 down.
And nobody ever tows a vehicle that is not "rated" to tow? And unlike ICE vehicles where the transmission probably does not lubricate when driven from wheels, nobody has pointed out a mechanical reason a EV can not be towed.
Mechanical reason # 1, EV's have motors connected directly to the wheels, if the wheels turn, so do the motors.
โNov-27-2019 07:01 AM
JRscooby wrote:time2roll wrote:
There are exactly ZERO EVs rated to be towed 4 down.
And nobody ever tows a vehicle that is not "rated" to tow? And unlike ICE vehicles where the transmission probably does not lubricate when driven from wheels, nobody has pointed out a mechanical reason a EV can not be towed.
โNov-27-2019 04:44 AM
JRscooby wrote:time2roll wrote:
There are exactly ZERO EVs rated to be towed 4 down.
And nobody ever tows a vehicle that is not "rated" to tow? And unlike ICE vehicles where the transmission probably does not lubricate when driven from wheels, nobody has pointed out a mechanical reason a EV can not be towed.
โNov-27-2019 02:24 AM
time2roll wrote:
There are exactly ZERO EVs rated to be towed 4 down.
โNov-26-2019 03:23 PM
time2roll wrote:
There are exactly ZERO EVs rated to be towed 4 down.