Electric vehicle controllers and control systems

I have a WE BL-36 kit Installed and working fine but there is an extra 2 pin connector coming out of the controller. (The controller has the rocker switch and red and green lights) Does anyone know what that extra connector is for? Currently in use connections include the Battery, the Motor and the throttle. If, the connector has a purpose (it must or it wouldn't be there, dah) how can it be used? I've just been ignoring it, maybe that is not all bad.
Anyway, thanks for any help you may be able to provide.

The Trike Animal

For some reason I'm getting a little stumped. I'm starting work again on my three wheel motorcycle to see if I can get that running and on the road. One issue is to redo the wiring for the lighting system including the turn signals.

I did this once before on the Lectra motorcycle but I didn't write anything down ...and...

Would like to mod a Axe 400 Alltrax to reduce the throttle lag.

Can this be done, or is there a controller that has a very low latency?

Thanks Sean

I have seen a few discussions about Star/Delta motor switching over the years. Apparently its known with industrial motors. The way I understand it, starting in Star reduces start-up current draw, but once running, switching to Delta if more efficient?

Rather than have two coil wires coming out of a DC motor that is internally permanently wired as either Star or Delta, the 3 phases have two wires each coming out of the motor, for a total of 6 wires. This allows external switches to configure the motor as Star or Delta at will.

Hello Voltage Community,

I am building an electric vehicle using Zapino hub motor and controller, and have some questions about this setup.

I stripped all the lights and indicators etc out of the system, and now have only the ignition switch connecting batteries to the dasboard speedometer/voltage monitor, the controller, throttle and motor.

When I turn on the ignition switch, the motor locks up, regardless of whether the main breaker is on or off.

Hello All:

I'm new here but I have a few posts on other ebike forums (I guess that's the plural of "forum". Or is is "fori"?)

Here are the two things I'm wondering:

1. Would it be possible to build an inexpensive controller for brushed motors using a little PWM kit, such as the ones available from Jameco, etc, and simply feeding the output of the controller to an array of FETs, for theoretically unlimited current capability? You would basically be using the FETs as amplifiers, stepping up the capability of the little circuit.

HI

Can any one tell me how to select a controller & motor and what are all the perarmeters to be check befor selecting a controller and

what is the best power for motor and controller which gives more milleage and life

It's easiest to explain this with a diagram.
I'm simply thinking the controller is a switch that either completes the circuit or opens the circuit.
The controller still sees 24 volts...but the motor sees 48 volts.

Can someone explain why this will not work...I must be missing something.

What if we put in more batteries? The controller still only see 24 volts, but we can let the motor see 72 volts or even more.

It feels this should also work even for brushless motors like our favorite Xtreme bikes.

Many of the smaller brush-motor controllers include a connector to power a brake light. For a 48V battery and 48V controller, I must assume that the output to the brake light is also 48V? I want to avoid having a 48V lamp. All other electrical accessories: headlights, taillights, horn, and 80A solenoid to connect the controller to the battery, are all 12V from a 48V to 12V DC/DC Converter.

Here's my question:

How can I power a 12V brake lamp from the 48V brake signal coming from the controller?

My micro bike has 3 wires (Black Red Blue) comming from a sensor near the peddles which only lets the power go if ur already peddling.

Im not sure how this circuit works?

Can I remove this unit and just connect two of the wires together to remove the 'peddle first' requirement?