Quote:
Originally Posted by JoeG
I did away with the clutch. With a large motor(9 dia"), & light car, you don't need to shift much, since they are torque monsters. With a 7" motor, you need to use the transmission like a gas car to get any kind of acceleration. My controller is a self built Open revolt controller kit. It's good for 600A and up to 160 volts. I'm running 45S or 154 volts right off the charger.
Cheers,
Joe
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Sorry to hijack the thread. Thanks for your response.
Good to hear you get good performance from no clutch. 600A is likely more than I will be using - I will be closer to 220A (4C from 48V of 55 a-h leaf cells) and either a Cougar controller or the newer IGBT version.
I would like to build (along with the other projects that I have) a side-by-side utility vehicle, use the motor/transmission/CV axles/front wheels from a 90 sprint and transplant that into the rear of a home-built side-by-side for some minimal off-road/utility use on our acreage and to move people. Using the transmission for reverse and likely only first and second gears for forward. Shifting would likely be done when stopped but could be done clutchless while moving .. maybe. Anything else I can use, I will - like the manual brakes, seats .. maybe headlights?
The 90 chev sprint project ... I bought it *VERY* used from a machinist that got the transmission coupler done (it actually uses a joy coupler!), the transmission adapter plate, and sourced an old sepex aircraft generator for a motor.
I would normally avoid sepex, but the generator/motor is only about 7 inches in diameter and at 48V it likely won't over-speed even if I run it unloaded! I plan to run the field from the 48V pack with a resistor in series to limit the current. If there is no current through the field, a relay will lock out the armature controller.
If I ever get there (many projects) I will post a build thread.