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Transfer cases as EV transmissions (was: 4WD S10 Blazer question)
>> I'm aware of the splined input shaft issue (wouldn't it be a kick if
>> someone made a transfer case that was an exact fit for one of Victors AC
>> motors?)
>>
>> Thanks.
>
>For something like that larger (45 kW rated) motor may be more suitable,
>and this one doesn't have splined shaft - rather smooth keyed.
Actually I was thinking that if one of your smaller motors fit one of the
newer transfer cases then someone building a lightweight EV could use the
transfer case as a transmission.
Many of them come with a low ratio around 2:1 and high ration is 1:1. Most
of the newer ones offer "shift on the fly" which, as I understand it, means
you can shift while moving and it doesn't require a clutch(?).
This would eliminate clutch, flywheel AND motor adapter.
If it worked this could represent a significant cost savings as well as a
weight savings, not to mention that many of these cases only weigh 45 lbs or
so.
P.S. The differential would give you an additional 4:1 reduction, give or
take. Total motor to wheel reduction would then be 8:1 in low and 4:1 in
high.