48v sine wave controller

[Dan Edwards]

So, my Teo' Fat bike needs a controller to fix the issue of the square wave controller not working with the bafang hub. ( I have a thread on my hub replacement )
Basically I was shipped a new 750 watt hub and controller to replace the 500 watt I did not order. Well the controller shipped to me is a square wave. meaning at 1/4 turn of the pedal the bike will lurch forward full power for the moment. keep pedaling and pas 1 will put you at 10mph. nothing slower!
Teo offers a "sine" wave controller for $250, up $55 from a year ago!
So not wanting to do further business with Teo bikes, I am looking for a controller to replace mine

NEEDED; 48v brushless compatible controller w/display controller size is the issue; 110mm X 50mm x 30mm im thinking it has saunders style connections and bullet type power but no problem changing over.

Juiced and M2S have the same frame style as Teo, The controller is inside the frame tube.

Thank you for any help

 

[indianajo]

I don't think your problem is sine wave versus square wave, I think your problem is the controller uses 30 amps to get you to the PAS1 speed. My controller does that too. I only use PAS after I'm going, the road is smooth and no traffic problems, and I'm tired of holding the throttle.
Bikes with torque sense are suppose to come on smoother with the assistance. It should be easy to program the acceleration amps of the cheap controllers to 5 or 10 in PAS1, but I don't know any model that does it. Talk to an expert like grin or em3ev, but don't expect a replacement controller to fit in the frame tube. You'd be lucky if a new controller had the same hall effect sensor connector. Some shop owner on here recommended a brand name controller that had more advantages, but controllers by brand and part # are only available to shop owners that live in LA, Chicago, Boston, or NYC. The rest of us can buy an entire bike without seeing it, or can buy some generic garbage no-name brand part off amazon ebay & alibaba.
another reason the nanny states that prohibit throttles are out of their minds. throttle can ramp up smoothly without jerking and wheel spin. what the nanny states want to do is scare you off the bike and back into a car where you pay the usual taxes.

 

[Dan Edwards]

Well, Teo exchanged controllers with 2 other canadians and solved their same problems. ( I didn't mention that the power just dies for no sane reason as well ).
Teo offers a sine wave for my hub, but I'm not doing any further business with them. I would put a cyclone 3000 on it but luna is out of stock

 

[harryS]

So you're not going for another controller from Teo? Well, if it cost $250, I'd pass too.

Speaking as a guy with a boxful of controllers, not a trivial task to find another one unless it's the same manufacturer. For one thing, the displays from one brand won't/don't necessarily work with another. Wiring may be common, so your display lights up, but software interfaces change. and it can't talk to the controller.

It's detective work and sometimes an educated guess to match connectors if they're not compatible. You really want something plug-and-play. Even controllers made by the same plant will do something crazy by using the same wires for PAS but they switch the gender of the connector around. By the way, I don't think your Cyclone controller supported PAS. And your present controller is not Sondors compatible, which means round modular connectors.

I would be happy if PAS 1 took me up to 10 mph and no higher. Most controllers I own will take the bike up to 12 mph I don't think sine wave or sqaure wave has anything to do with that. It's how they program currents at lower PAS levels.

A 22A sinewave controller that can run all day at 22A? The 25A Luna Hotrod controller (I use one) comes to mind, but its plugs are not even halfway compatible (everything needs to be spliced), and you need to buy a new display. It's also not sine wave, and will take your bike up to 12 mph too.

A BMSBattery S12S is 25A and sine wave, but it is huge. Also needs a new display. Both this controller and the Hotrod are KT controllers, which advertise "torque simulation". It is not, but it is smooth,

 

[Dan Edwards]

I realize cable connections will change, and will need a display that matches the controller. My wifes Rad is 750 sine wave, the old controller was a 500 watt sine wave. as it is know the bike is very hard to manage if you making a slow sharp turn, or just want to peddle slower than 10. BUT this current controller also just dies for no reason! Now given that others have swapped out the square for a sine on the same bike. I know my wants are valid. also given these bikes are made in the same basic plant in china My odds are better.
I would never buy another store bought bike, better off building yourself, only company that gives a rats ass about customers is Rad. BUT they dont have a top notch bike neither

 

[tomjasz]

Thieves! Go for a FOC controller and CA2.4 or CA3 from Grin. eBikes.ca