Anyone try a backyard ev truck yet? Thinking of taking out a 7.8 Ford mated to a 6 speed in a l8000 and trying a electric motor in it.
What's the intended purpose??? and what kind of batteries do you have in mind?
Purpose to run an electric vehicle more curious to see how they work and if it's efficient to " save environment" and $ as well as I run a lot of diesel trucks already. Would be running a single axle 3 ton with a crane possibly doing local pick ups short distance . Looking at keeping the existing 6 speed mated to a 1000 lb torque motor and numerous golf cart batteries . Do you have any personal experience ?
Price this motor and get back to us...
When going with a engine/alternator set-up you don't need/want the gearbox. It's heavy, and waste's power. The alternator is sized and designed to keep the engine running in it's optimum power settings (rpm/torque) at all times.
Hmmm. experience fooling around with stuff that doesn't work? -LOTS. experience with forklifts, pallet jacks, scrubbers and "numerous golf cart batteries"? -enough. Batteries make a lot of sense for low power demands like indoor forklifts, or bicycle motor assist, a lot less sense for something like a car, and no sense at all to replace a very efficient (close to 50%) and cost effective diesel engine. The simplest economics, diesel is $2/gal, electricity at $.10/kwh will equal more than $3/gal for diesel, and the charger and batteries will waste close to the same percentage as the diesel engine, not counting the replacement of the batteries every so many years. Have you looked into the hydraulic hybrid garbage trucks? that seems like a niche that could work.
For a DC motor that would be around 200hp, requiring 300 - 400 Volts. (IIRC)
@ delmer- more of a project of interest than saving $ like guys with muscle cars ! Muscle electric truck. @ kenh - sounds bout right after some research still checking though. 300-400 volt . Still trying to understand is that the controller that gives the electric motor the proper current ? @ digger Doug thanks for input but I really do believe a transmission would help even though could start in six gear I believe in that truck it's a 1:1 ratio . So that would be starting like direct no transmission. Don't understand what alternator means in your thread please elaborate I'm just learning. The transmission weight wouldn't matter to me as the truck has a couple ton crane and could be hauling weight as well. Just would like to be able to crawl up a hill still fully loaded if needed. Any other input is greatly appreciated by anyone. Going to check out " hydraulic hybrid garbage trucks" Note: We have an electric bus in Winnipeg.
@ Wes j yes looking at evwest and there is a builder of heavy motor in Winnipeg as well. Looking at a used forklifts motor if anything that big could be found .
Frequently Asked Questions - The University of Tennessee at ... www.utc.edu › cete › faq This site had interesting info perhaps a transmission is not needed as torque is instant at 0 rpm. Hard to teach an old dog new trucks I mean tricks
Those Winnipeg busses are interesting, I wonder how well they work through the winter though, probably have to keep them running 24/7 or else. The garbage trucks are another good candidate for regenerative braking because of the frequent stops. Another one to look up is the hybrid Cat excavator. I swear I saw an add once for a hybrid Cat off road dump truck once, but that may have been proposed or whatever? Your crane truck has the distinct disadvantage of having a variable power demand and low usage, assuming you're not running it 5 days a week? It's just hard to save anything to pay back the cost of the conversion, $$$ or carbon karma. With enough batteries and enough motor you don't need a transmission. A wider ratio 3 speed would be more appropriate for a typical electric motor in a heavy service truck, I'd guess.
I think what digger doug was eluding to is a hybrid setup where you have a battery pack but also say a small diesel engine running an alternator to provide power and also charge the batteries, depending on demand. The efficiency comes from running the engine at constant speed and load where it is most efficient in fuel useage, cutting the engine off when batteries near full charge and of course regenerative braking when going downhill or stopping.
Yes that is how all the hybrid cars work . Isn't that the same way a locomotive train works as well the Diesel engine charges the batteries to power the electric motors ? base truck is a 88 Ford l8000 single axle 3 ton has a grapple crane and 18 foot box hoist . Old Brazil ford with a six speed. If I could get 50 klm travel with @ 70 klm/ hr top speed on a trip With mostly traffic driving it could work And prove more than just a project . Like your track machines on your website would work well up here in Manitoba to do some exploring or just cruise the snowmobile trails . It's what they groom them with . Pretty cold here today -40 Celsius with windchill warms up in a few months
Locomotives and also some tug boats by the way, are direct circuit generator to drive motors, no batteries. I think they're all DC but not sure. High torque and variable speed without mechanical drivetrain, except for the reduction gears in the actual drive units.
Only the Prius is a all electric AFAIK. The Camry, Civic, Insight etc. have an engine connected to the transmission with an electric motor added in somewhere. That's why the Prius gets better mpg in the city and the Insight gets better mpg on the highway. The Winnipeg bus is something along the lines of a Variable Frequency Drive, it takes DC and converts it to AC to drive the motors at the desired speed/torque. According to Wikipedia "In the late 1980s, the development of high-power variable-frequency/variable-voltage (VVVF) drives, or "traction inverters," has allowed the use of polyphase AC traction motors, thus also eliminating the motor commutator and brushes. The result is a more efficient and reliable drive that requires relatively little maintenance and is better able to cope with overload conditions that often destroyed the older types of motors." -new trains use all AC in their drive train. You could go to ecomodder.com and use some of their mpg/drag/efficiency calculators to run some numbers on your truck, then compare it to the actual MPG's you can get, and estimate what it would take motor HP and battery wise to make it work. But really the result will be so crude it wouldn't be cutting edge a century ago.
Nickel Iron Edison batteries and drum controllers? Maybe not as efficient but incredibly reliable, lol
Hey, I like that. If you're gonna do it, do it in style.
Ahh yes...all the way from Cleveland.... the Baker electric car.