24F Silent Controller 20kw 100-150v iOS/Android- $299>

Place for dealers to post items for sale.
Ebuilt   10 mW

10 mW
Posts: 23
Joined: Jun 19 2018 11:27pm
Location: West coast usa

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Ebuilt » Jun 22 2018 11:43am

Am I right to understand that this 24f controller can handle up to 150v before burning up? What is the largest battery someone has run on one of these to date? I’m trying to build two touring tadpole trikes. Looking at qs205 motors, these controllers, and want to research battery options a little better before pulling the trigger.

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Jun 22 2018 12:43pm

I have a new stock of 24Fs customized to handle up to 150v. What this means it that the power stage of the controllers is upgraded with 150v rated mosfets and capacitors. There are also adjustments in the control circuits to allow this voltage to run.

I have a few customers that ran up to 147v on these (35s packs fully charged).

I have personally run QS205 and 273 motors + 24Fs combos successfully for thousands of miles.
Ebuilt wrote:
Jun 22 2018 11:43am
Am I right to understand that this 24f controller can handle up to 150v before burning up? What is the largest battery someone has run on one of these to date? I’m trying to build two touring tadpole trikes. Looking at qs205 motors, these controllers, and want to research battery options a little better before pulling the trigger.

bobmutch   10 W

10 W
Posts: 98
Joined: Jul 18 2017 7:20am
Location: London Ontario Canada area

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by bobmutch » Jul 29 2018 7:10pm

moved on...
my ride 48v11Ah Motorino LTi, So far bought a Big Dual Suspension Frame/shock, Kelly KLS7240S, 72v35Ah Headway 40152S, OliveLeaf 8S-24S BT miniScreen BMS, CA3-HC. I'm here to learn.

Ebuilt   10 mW

10 mW
Posts: 23
Joined: Jun 19 2018 11:27pm
Location: West coast usa

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Ebuilt » Aug 13 2018 12:58am

Do you have an open source info of how to wire in Domino throttles to your controllers? My half twist throttle works just fine with your controller, but the Domino has two extra wires than what comes out of the controller. Also, whats this about wiring resistors or pots into the throttle? If you can post a picture here for me and anyone else who might have this question, would be great!

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Aug 13 2018 1:21am

There is no secret about it. Two green wires are for built-in micro switch that Domino has. That's where that click comes from when you fully release the throttle. In most cases, you just don't connect them to anything although I've seen people wiring them to ebrake. So, fully releasing the throttle cuts the power for sure or regen kicks in if enabled.

In regards to the voltage mapping, the basic idea is to shift the output voltage on a resistive throttle like Domino or Magura from 0-5v to something like 1-3.6v as this is what the controller expects. This eliminates the dead band at the low and high ends of the throttle.

The starting threshold on the controller is actually 1.3v, so the throttle resting voltage of 1-1.2v would be ideal. You can achieve this with a voltage divider. Then you need to drop, the top voltage from 4.7v from the controller output to something like to 3.6-4v. You can do that by adding a diode or a resistor in line with the red/power wire.

The new BT modules, however, do voltage mapping automatically.

Ebuilt wrote:
Aug 13 2018 12:58am
Do you have an open source info of how to wire in Domino throttles to your controllers? My half twist throttle works just fine with your controller, but the Domino has two extra wires than what comes out of the controller. Also, whats this about wiring resistors or pots into the throttle? If you can post a picture here for me and anyone else who might have this question, would be great!

bobmutch   10 W

10 W
Posts: 98
Joined: Jul 18 2017 7:20am
Location: London Ontario Canada area

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by bobmutch » Aug 15 2018 5:29pm

Q: Will your controllers (with the $20 option of the JST 6pin CA cable) support the Grin Cycle Analyst 3.1p15 feature of proportional regen by ebrake + throttle as you depress the throttle the brake out voltage will decrease down to 0.0V to give maximum regen?
my ride 48v11Ah Motorino LTi, So far bought a Big Dual Suspension Frame/shock, Kelly KLS7240S, 72v35Ah Headway 40152S, OliveLeaf 8S-24S BT miniScreen BMS, CA3-HC. I'm here to learn.

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Aug 15 2018 11:52pm

Using the same action on the throttle for acceleration and braking is unsafe, so there is no plan to support that.
A separate brake throttle or a hall effect sensor on brake levers are a possibility.
bobmutch wrote:
Aug 15 2018 5:29pm
Q: Will your controllers (with the $20 option of the JST 6pin CA cable) support the Grin Cycle Analyst 3.1p15 feature of proportional regen by ebrake + throttle as you depress the throttle the brake out voltage will decrease down to 0.0V to give maximum regen?

User avatar
danielrlee   1 kW

1 kW
Posts: 440
Joined: Mar 29 2013 8:30am
Location: Wiltshire, UK

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by danielrlee » Aug 16 2018 5:18am

Powervelocity.com wrote:
Aug 15 2018 11:52pm
Using the same action on the throttle for acceleration and braking is unsafe, so there is no plan to support that.
What is your reasoning behind this statement? Grin seems to have successfully implemented this very feature and I haven't heard of any safety concerns either in theory or practice.

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Aug 16 2018 5:30pm

Because of increased probability of brake misapplication and unintended acceleration.
People hit accelerator instead of brakes every day even when those are separate pedals. Check this out:
https://business.gasbuddy.com/nhtsa-160 ... dal-error/

So imagine what happens if you get rid of the brake pedal and use accelerator for braking but will have to press and hold a button each time when you want to brake.

Brakes are the most important safety feature of a vehicle.
It must be intuitive and easy to engage to be effective, especially, in emergency situations. You have no luxury of thinking twice how to slam on the brakes it should not be a two step process and can't use the same action registered in your muscle memory.
danielrlee wrote:
Aug 16 2018 5:18am
Powervelocity.com wrote:
Aug 15 2018 11:52pm
Using the same action on the throttle for acceleration and braking is unsafe, so there is no plan to support that.
What is your reasoning behind this statement? Grin seems to have successfully implemented this very feature and I haven't heard of any safety concerns either in theory or practice.

knighty   10 kW

10 kW
Posts: 535
Joined: Sep 13 2012 8:57pm

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by knighty » Aug 17 2018 2:58am

hi

how do I buy a 20kw controller with shipping to the uk?

thanks
Alan


(p.s. the contact from on your website throws up an error, so does the pay with paypal button)


bobmutch   10 W

10 W
Posts: 98
Joined: Jul 18 2017 7:20am
Location: London Ontario Canada area

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by bobmutch » Aug 19 2018 4:26am

>>>So imagine what happens if you get rid of the brake pedal and use accelerator for braking but will have to press and hold a button each time when you want to brake.
Brakes are the most important safety feature of a vehicle.
It must be intuitive and easy to engage to be effective, especially, in emergency situations. You have no luxury of thinking twice how to slam on the brakes it should not be a two step process and can't use the same action registered in your muscle memory.

I agree 100% sounds right. I had my bike jump out of my hands and launch forward full speed because I stopped to put my chain on and the peddle assist sensor must have got spun. Jumped right out of my hands. Then the controller is in the down tube at the bottom righty the crank unsecured and the battery-in-a-tube is fitted into the down tube but the battery slides out of the tube and down the bike down tube and weights on top of controller.

I was gliding in to my house hit the curb hard, I like to come in fast lol, onto my drive and the bike bolted.

So ya that makes sense about the braking, just something togo wrong and bolt on your, perhaps into traffic lol.

Ok next Q

So what about a bi directional throttle, one way for speed, the other way for brake? or do you think it is better to have a separate throttle on the left handle bar. And I want to set this all up with the CA3 and a PV controller.
my ride 48v11Ah Motorino LTi, So far bought a Big Dual Suspension Frame/shock, Kelly KLS7240S, 72v35Ah Headway 40152S, OliveLeaf 8S-24S BT miniScreen BMS, CA3-HC. I'm here to learn.

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Aug 19 2018 7:47pm

Bi-directional throttle is different because twist directions for acceleration and braking are different. So, it intuitive.
You still want to have regular brakes for emergency braking, or, even better, tune 95-100% of the braking band to engage hydraulic/mechanical brakes for complete stop.
bobmutch wrote:
Aug 19 2018 4:26am

Ok next Q

So what about a bi directional throttle, one way for speed, the other way for brake? or do you think it is better to have a separate throttle on the left handle bar. And I want to set this all up with the CA3 and a PV controller.

bobmutch   10 W

10 W
Posts: 98
Joined: Jul 18 2017 7:20am
Location: London Ontario Canada area

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by bobmutch » Aug 22 2018 1:15pm

Q1: bi directional throttle... or do you think it is better to have a separate throttle on the left handle bar?

Q2 And the bi directional throttle will work with AC3 and a PV controller?
my ride 48v11Ah Motorino LTi, So far bought a Big Dual Suspension Frame/shock, Kelly KLS7240S, 72v35Ah Headway 40152S, OliveLeaf 8S-24S BT miniScreen BMS, CA3-HC. I'm here to learn.

Powervelocity.com   10 kW

10 kW
Posts: 780
Joined: Mar 27 2015 2:15pm
Location: California
Contact:

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by Powervelocity.com » Aug 22 2018 4:52pm

A bi-directional throttle takes less space and allows you to operate throttle and brakes with a single hand. It's intuitive and mutually exclusive. You can't have both actions (throttle and acceleration engaged at the same time). I have not personally run such throttle, but, theoretically speaking, I think it provides the best experience.

I do have first-hand experience running the secondary throttle for regen. It works pretty well. What is better, I think would be a matter of a taste here.

i haven't seen a lot of bidirectional throttles yet, but all a throttle does is provides some voltage output. The easiest to make it work with most controllers is to have two separate outputs on such throttle. So that it will output near 0V on both outputs, and will change one or the other output voltage, depending which direction you twist it. That will require minimum adjustment to the existing controller logic (or CA for that matter).
bobmutch wrote:
Aug 22 2018 1:15pm
Q1: bi directional throttle... or do you think it is better to have a separate throttle on the left handle bar?

Q2 And the bi directional throttle will work with AC3 and a PV controller?

User avatar
ecross   100 W

100 W
Posts: 286
Joined: Jun 11 2011 2:09pm
Location: Munich

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by ecross » Aug 27 2018 9:50am

Hi

is fully variable regen or 2 step switch regen now on stock?

-still waiting for more then xx weeks!

Thanks
NC 2805 mod.
H4080 mod.
4504 mod.
4503 mod. with watercooling
LiIon 24S16P from Sony, Sanyo, Panasonic
Siemens 2000W travel charger

cheeko   10 mW

10 mW
Posts: 32
Joined: Mar 25 2014 10:59pm
Location: Brisbane AU

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by cheeko » Sep 14 2018 12:15am

Does the 24FET have a Voltage Regulator for 12v?

Cheers


cheeko   10 mW

10 mW
Posts: 32
Joined: Mar 25 2014 10:59pm
Location: Brisbane AU

Re: 24F Silent Controller 20kw 100-150v iOS/Android- $299>

Post by cheeko » Sep 20 2018 8:08pm

Thanks Mate, Can't wait to get it


Post Reply