Motor controller for 24 volt wheelchair motors

I need a motor controller for 24v wheelchair motors.

Motors are 24v 5a.

Require very precise low speed and steering control, in both forward and reverse.

Total payload is less than 100 lbs not including the wheelchair base as pictured below.

Remote control will be by 2.4 GHz transmitter/receiver OR WiFi Pi/Arduino. Have not decided but leaning away from the r/c hobby controller.

I do not need to be able to actuate the stock motor brakes.

This controller seems reasonable:

robotshop.com/productinfo.aspx?pc=RB-Pol-35&lang=en-US

although I have seen some others at higher price points. At least one includes regenerative braking: not sure I need that but if that gives me more precise operation, fine.

Price point should be under $150.

Advice welcome. Max

Thanks for the reply.

The controller you linked to is the other one I had spotted.

Thank you again!

Darn - that one is backordered. Is there a similar alternative in stock? Max

Thanks again.

Hi All, I also need a motor controller to allow RC and possibly Arduino control of a 24v wheelchair chassis.
I want precise, slow, gentle movements exactly like when using the existing joystick on the wheelchair.
I looked at the 32A Sabretooth dual motor controller which has the features I want but I have been told on other forums that this solution would only give jerky rapid movements
especially when starting off or hitting small obstacles or slopes. Would this be the case? If so is there another controller that would work better?

Thanks!

Gedi42

On the Sabertooth, there are two modes for control: linear and exponential. Exponential would allow for more “gentle” motion.

You indicate the motors need 24V, 5A, but the controller you specified can only provide up to 5A per channel. Normally wheelchair motors require more than 5A continuous. Consider a dual R/C controller which can provide at least 10A or more and ensure the specs indicate the voltage can be at least 30V, as a charged 24V lead acid battery is well over 24V.

RB-Dim-42 + 2x single end servo cables would be the same thing.