Controller info

[Strawberry]

I bought a pair of shoprider motors off eBay, unsure of wattage, Any recommendations of controllers I could use for them? Pic attached

 

[Annieolnie]

These are for wheelchairs, right? What are you planning on using them for?

 

[Strawberry]

Building a picking cart for my garden. As far as I know there 650watt but can’t verify this or find a controller of that size.

 

[Chumley]

Do you know what Voltage? Mobility scooters go 12v,24V,36v and 48v. You don;t have to run them at full watts. 12V is 53 Amps, 24V is about 27 amps. 48 V is about 13 amps. That doesn't look like a 3 phase motor used on ebikes. Looks like a DC motor. Doest it have 3 motor leads or 2 ? If it's low voltage (12/24) the wires will be thick. Like 8 gauge or 10 gauge to handle the current. Even 13 Amps needs about 14 gauge or thicker.

DC control is a lot different than 3 phase.

 

[Strawberry]

Do you know what Voltage? Mobility scooters go 12v,24V,36v and 48v. You don;t have to run them at full watts. 12V is 53 Amps, 24V is about 27 amps. 48 V is about 13 amps. That doesn't look like a 3 phase motor used on ebikes. Looks like a DC motor. Doest it have 3 motor leads or 2 ? If it's low voltage (12/24) the wires will be thick. Like 8 gauge or 10 gauge to handle the current. Even 13 Amps needs about 14 gauge or thicker.

DC control is a lot different than 3 phase.

Thanks for the detailed response, The motor is 24v with two leads. I have some 48v hubs on a different unit I built that are 3 phase but new to the DC type motor controllers. A link to type of controller would be helpful as the sellers communication on my purchase was poor.

 

[Chumley]

I know just enough to be dangerous, so take some of this carefully. I searched for Mobility 24V Controllers. Here's a sample:

-24v-250w-brush-controller-speed-controller-for-electric-bicycle-parts-electric-scooter-controller

I am assuming it's a brushed motor. So 2 leads, gonna be either PWM, or Mosfet control or something like that. Brushed motors are usually controlled by voltage.

Before planning on use, consider the output RPM. This may be slower than you think. Electric Wheelchairs have 26 inch or so wheels. So output RPM will be slower for them then a mobility scooter with 5 inch or 8 inch wheels. Not familiar with your unit, but principles remain for devices like that. Makes for an interesting trike, if that's your plans.

 

[Annieolnie]

I know just enough to be dangerous, so take some of this carefully. I searched for Mobility 24V Controllers. Here's a sample:

-24v-250w-brush-controller-speed-controller-for-electric-bicycle-parts-electric-scooter-controller

I am assuming it's a brushed motor. So 2 leads, gonna be either PWM, or Mosfet control or something like that. Brushed motors are usually controlled by voltage.

Before planning on use, consider the output RPM. This may be slower than you think. Electric Wheelchairs have 26 inch or so wheels. So output RPM will be slower for them then a mobility scooter with 5 inch or 8 inch wheels. Not familiar with your unit, but principles remain for devices like that. Makes for an interesting trike, if that's your plans.

You are not dangerous Chumley. You are smart and methodical. The minute I saw these particular scooters, I knew I was lost.

 

[Strawberry]

I know just enough to be dangerous, so take some of this carefully. I searched for Mobility 24V Controllers. Here's a sample:

-24v-250w-brush-controller-speed-controller-for-electric-bicycle-parts-electric-scooter-controller

I am assuming it's a brushed motor. So 2 leads, gonna be either PWM, or Mosfet control or something like that. Brushed motors are usually controlled by voltage.

Before planning on use, consider the output RPM. This may be slower than you think. Electric Wheelchairs have 26 inch or so wheels. So output RPM will be slower for them then a mobility scooter with 5 inch or 8 inch wheels. Not familiar with your unit, but principles remain for devices like that. Makes for an interesting trike, if that's your plans.

The part I am building will be front wheel drive with two trailing tires to straddle my strawberry rows. The operator will lay facing down and use his feet for throttle and steering control. Speed is going to be slow. I’m more after low end torque using a bar type tire like a tractor but a lot smaller.
My other cart is away to fast to be used efficiently in the patch.

 

[Chumley]

The part I am building will be front wheel drive with two trailing tires to straddle my strawberry rows. The operator will lay facing down and use his feet for throttle and steering control. Speed is going to be slow. I’m more after low end torque using a bar type tire like a tractor but a lot smaller.
My other cart is away to fast to be used efficiently in the patch.

That sounds nice. Something Like this? Jungle Site Tires

 

[Strawberry]

 

[HumanPerson]

https://cropcareequipment.com/vegetable-equipment/picking-assistant/

 

[Strawberry]

https://cropcareequipment.com/vegetable-equipment/picking-assistant/View attachment 23319

My concept closely resembles this idea but 4 wheels

 

[HumanPerson]

My concept closely resembles this idea but 4 wheels

We had someone else here long ago that was doing the same thing with each wheel being the ebike wheel/motor.

Have you looked at any ideas some of the other peeps had? Great concept mate keep me posted to your outcome!

 

[BubbAlou88]

This is really cool. Had not seen these before. I guess you would have to plant rows to accommodate wheel spacing to keep from smashing them. My wife being a minimalist asked why don’t they just walk through the fields and pick them? I told maybe they have back issues like me. I really like the design in the photo as it would keep pressure off my back (which most of my lumbar is fused) with the 2 level design.