[ausev] jeep ev without tranny?

[Marc Kohler]

Ben,

I’ve hooked up a 9” Netgain DC motor with 72V/1200A controller directly to
the rear driveshaft on a 2008 GMC 1500 (½ ton) truck.  Very slow and low top
speed (20-30 mph?)

Marc Kohler

 

From: ausev-bounces at austinev.org [mailto:ausev-bounces at austinev.org] On
Behalf Of Ben Jarrett
Sent: Thursday, March 24, 2011 1:40 PM
To: ausev at austinev.org
Subject: [ausev] jeep ev without tranny?

 

 

As I've been working on my differentials, I got to thinking about

what it would take to run my ev cj7 w/out a tranny or transfercase

(2 save weight and simplify).

 

I was thinking about running a larger dual shaft ev motor.

My specs:

4.88 axle ratio

28.5" tires

 

with these numbers, I'd be at 3742 RPM's for 65 mph.

 

I would hook up yokes directly to the motor shafts.  I would only hook

up the front driveshaft to the front yoke when I actually need 4wd,
otherwise

only the output yoke would be attached.

 

I'm not planning on running lithium batteries for weight savings.  

One thing I'm trying to figure out is if I can get a strong enough ac motor.

I may go w/ a large reversable dc motor if necessary.

 

I'm trying to figure out if I ran this config, could I get out of my own
way...

 

hmmm

 

-ben

 

 

 

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