What are the functions of a controller?
To answer my own question...and check to see if I understand...i have included the following functions:
1. start the motor
2. reverse the direction of the motor - like a reverse gear
3. do regenerative braking
4. regulate the speed of the motor
Is this correct? Are there any others? Is it possible to get a dual voltage controller, i.e. has a switch so that you can use 24 volts and then switch to 36 volts in the need arises?
I had a nice response worked out, but the computer ate it.
Let's see, since features cost money, more features equals more money:
- Start the motor. Yeah, if you have a brushless motor or AC motor, you'll
need the controller to feed exactly the right form of electricity to your
prime mover. - Control speed. That's the basic use, to Efficiently feel pulses
of power in proportion to throttle position. - Regen. This is less important than you'd think, providing only 10 - 15%
savings for normal usage patterns. City buses, however have found that regen
can reduce brake maintenance enough to pay for the installation of a hybrid
system. - Backing. If your EV is big, you'll need reverse. If your EV is a
motorcycle or scooter, it's a a waste of money.
MarkF
` :?
mf70,
Can you explain exactly what happen and the approximate time & your time zone?
I had a nice response worked out, but the computer ate it.
Stleride
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From my studies on controllers,
They are mainly something that holds the smoke in.
If the controller lets the smoke out you are in trouble because you will have to push your ride home.
chuck
But seriously,
The controller is akin to a carburater on a car. A car has a throttle pedal, an electric vehicle has a potentiometer. The throttle tells the carburater how much power to give the motor, the potentiometer tells the controller how much power to give the electric motor. Now, the controller, unlike a carburater, can also tell the electric motor which way to spin. In other words, run backwards. And, the controller can make the motor a generator to recharge the fuel tank, the batteries.
But many still believe it holds precious smoke
chuck
`
Your asking some very good questions. I'm sure many people what to know the same thing, but are very reluctant to ask.
After all we also never ask for directions either, we just drive around until we find it.
Keep em coming, it's all part of the original V is for Voltage Community Mission Statement
Peace Out,
Gman
Now that we have clarified our beliefs, your invited to join us as we begin building on them to define our Community Mission Statement
Peace Out,
Gman