Sabvoton+Cycle analyst = 2 level Ebrake
- Thread starter flexodood
- Start date
Not knowing how the controller you have works, exactly, I can only guess that you'd be setting the controller to provide some partial braking at a preset lower level when the ebrake switch input to it is engaged? Then use the CA to engage full braking via the controller's throttle input, with the controller set to obey the <0.8v throttle range from the CA?flexodood said:
If so...a question: Does the controller have just one, or two analog inputs (one for throttle, and one for brake)? If it has two, you could just go full variable braking, using a brake lever with a variable voltage output (such as a cable-operated throttle pulled by the brake lever).
For us to be sure what you're intending and help with it, you'll need to provide more specific detail for your idea.
What specific setting fields in the CA would you be setting to what values?
What input of the Sabvoton is used to receive the signals from the CA, and how are the two wired together, and how are your controls wired to each one?
What settings in the Sabvoton will be set to what values, to achieve what specific behavior?
My sabvoton is the basic model with only "slide recharge" (engages when throttle disengaged.) and regen braking (high lvl brake input).
Connecting one brake to the controller and the other to the CA I'm hoping to achieve 2 levels of Ebrake (while keeping the ability to "freewheel") by configuring the throttle voltage range (+curve) on controller and CA accordingly.
I don't know if it's possible, or if pulling the lever just makes the voltage go to minimum, not zero. And wether it's safe to have minimal throttle applied while standing still...
Connecting one brake to the controller and the other to the CA I'm hoping to achieve 2 levels of Ebrake (while keeping the ability to "freewheel") by configuring the throttle voltage range (+curve) on controller and CA accordingly.
I don't know if it's possible, or if pulling the lever just makes the voltage go to minimum, not zero. And wether it's safe to have minimal throttle applied while standing still...
Is the slide recharge only an on/off thing, at a specific level? If it's just one level, is that user-settable, or is itflexodood said:
Or is it variable?
Some of the controllers with this function engage the slide regen as a variable function depending on how far you move the throttle "back" from where it had been when accelerating/cruising, but if you actualy just let it go "off" then it doesn't regen, just coasts. Some of the programmable ones let you adjust things about how this works or how strong it can be.
Is the regen braking input only settable to "max braking"? Or is it user-settable?
That sounds reasonable, but without knowing the controller specifics (what settings are available, what hardware inputs it has, behaviors it can perform, etc) we can't determine what you have to setup to do that. You'll need to post that detailed information. The CA functions/etc are well-known, so we can figure that part out.
IIUC, the former is part of the CA function, and the latter is teh controller. You'd need to check the controller setup for how it works....
With Grinfineon controllers and the Phaserunner/Baserunner, they are setup so that anything below 0.8v on the throttle input begins variable regen, harder braking (greater reverse current) the lower the voltage goes down to 0v as max braking.
I don't know if any other controllers respond to their throttle inputs as braking in this way. You would have to check your documentation, if any, to see if yours does. If it does not, then none of the CA settings that output a voltage on the throttle to create braking will do anything for you, and the two-level braking you're proposing cannot be done with that controller.
If i tdoes have that ability, either preset or something you can setup in it, then the simple way to use it is to setup the variable regen in it (if it has that) to respond to the full 0.8v-0.0v range the CA can output for braking mode, with it's hardest braking you want to have on the 0.0v, and the least at the 0.8v. Then you can just pull your ebrake lever (connected only to the CA) and then use the throttle (connected only to the CA) to control the braking amount while the lever is pulled. Or you can build the variable regen brake lever like I did (there's a thread for it), and use that.
If your controller does something else, or has some other functions, you'll need to post exactly what it can and can't do so we can help you figure out what to setup and how.
There are quite a few different ways a system *could* work, so I can't post all the possible ways (too much typing and time); you'll have to tell us exactly how your controller works. If you aren't sure, you'll have to post the documentation for it so we can determine what it can do from that.
flexodood said:
Depends on what you want to happen. If you describe what you want the bike to do for you, and what your equipment is capable of, we can figure out a way to make that happen with it, if it is possible.
flexodood said:
You'll need to be more specific about the precise way you have your hardware and the CA setup, and the specific settings you have, for us to help you find out the cause and fix it.
Santacruz
100 W
- Joined
- Jun 18, 2015
- Messages
- 149
flexodood said:
Not at all irrelevant. I had an 8 magnet ring and changed to a mini 24 magnet from Grin and it made a huge difference.
I am running a Sabvoton 96120 with a CA3 using pas and it is perfect. But, obviously, you know what you are doing.
Santacruz said:
Great to hear you improved your experience.
Do you get delay free response in CA-controlled throttle-modes?
As I said. The delay I'm talking about is independent from PAS. And seems to not be present in Thr%-PAS-mode.
E-HP said:
Thanks.
