Electric Throttle Test In Easiest Way

[@rickylakemusic]

Thanks, my ebike just quit. Need to test both controller and thumb throttle. I'm now able to test TT. Thanks to yew HERO!!!!

[@joureny1154]

Wow to the point, clear concise text on the screen (Helpful!) and not a lot of blabbing before inbetween where if you have to go back it's hard to repeat a certain part. I'm trying to get my S650 scooter back up and running. Charges then soon goes to yellow then red light. Brand new 12v batteries (2). A couple of places I googled mentioned that a fuse might still be causing a problem if it hasn't blown so since it is somewhat working I can't figure out how where the fuse is and how to check it. (novice here)

[@jimmyfrizzable]

Thanks very much for this simple explanation, worked perfectly 👍

[@noearias2006]

Excellent knowledge thank you for your video

[@misoo83]

Hi, i have thumb throttle that have start idle voltage 1.33v and when full run 3.42v, is this ok voltage, is this throttle ok and will this throttle work fine with such voltage values?. Thanks 🙂

[@r4v5t]

Strange throttle. Starting v differs more.

[@urbanpuma9136]

Great video. I'm about to try this. What do I house the 3 AA batteries in - what's the white plastic case?

[@r4v5t]

That was DIY AAs holder. :-D

[@urbanpuma9136]

@@r4v5t ah cool. I found similar on Amazon and ordered one :)

[@anio6865]

I have a controller. And on the controller is a jst-sm 4 pin connector for both the brakes and the throttle together. 2 are for the brakes and that leaves 2 more pins which are of course for the throttle. But, the throttle has 3 pins. Could it hurt my bike if I switch the pins around until I find which pin goes where ?

[@Kashifkhan03635]

Thanks bro from Pakistan

[@storman7609]

Hellon my throttle is blocked on 2.8v . When i slide this throttle is only in 3.8v nothing else happens. Do you think this throttle are broken ? Thank's for video !

[@r4v5t]

3.8v seems ok. Starting 2.8v is too much for this type. Not sure, might be few things. Maybe worn or dirty inside, or too much DC input power...

[@anio6865]

I ordered a throttle and a controller match. But they dont sell the extension cable from the throttle to the controller. The connector on the controller is a shared housing the throttle and brakes. The throttle came with a Julet 3pin. And on the controller is a 4pin jst-sm connector. And 2 of the 4 wires are for the brakes. I need to test which is negative, 5v and the signal. How do I do that ? I need to check the controller signals.

[@Fieselage]

und wie testet man ein PAS Sensor?

[@rpkr5543]

does this work like a potentiometer?

[@aman-mn5kc]

Is it possible to wire, in some way, a cruise control (on off switch for full signal back) without twisting the handle? I have a electric scooter.

[@anatolie3060]

yes use controller wires red green when connected together it gives full throtle

[@geourgkivijian4598]

eh man thanks a lot only video on youtube that explains this

[@lipwoon]

Good video. Possible to do a video on testing the brakes? Especially for those brushless controllers with "Brake High" and "Brake Low" signal cables. Thanks.

[@r4v5t]

Sorry I have none of those currently.

[@ismanapribadi8842]

Hi my ebike having a problem, power goes out if I twist the throttle a bit fast, and did check the throttle output like you did here, I got 3.6volts max, could this be the problem? Please help anyone

[@waynedavies3185]

What if the wires on a throttle red, black, and blue (instead of Red , Black and Green as shown)?, Are both red and black the same as you stated, and the blue is signal?

[@r4v5t]

Most probably yes.

[@waynedavies3185]

@@r4v5t … Found the required info on the Hall Effect transistor (# A3144) used on these e-bikes, last night, and wires can be blue , green and white, while the other two remain as red (+), and Black (-). The third color is the signal wire. Thank for your help. Wish the companies that make the bikes give a schematic diagram of all the wiring at time of sale (Maybe a diagram sheet glued on the bike's under seat, so it remains with the bike at all times, even if it is resold later down the road). Info should not have to be supplied by people that are also having trouble fixing their bikes on You Tube, but thank God for them, for those wanting to fix their bikes, wouldn't be able to get the required, proper info to fix them, which is very costly if it's done by a repair shop. The sensor transistor is not marked on my bike with a replacement number, where the connection/replacement hookup can be looked up. Once I had the transistor replacement number (A3144), I was able to look up the transistor in my transistor replacement service manual listings. That book tells me everything about that transistor needed by a repairman. Again Thanks for the help. I'm okay now, and can make the repair.

[@joblesstravelvlog7861]

Hi sir i have my electric bike and its suddenly gone slow i check with throttle so i got like when i useing throttle so its work till half and other half goes empty ,so sir what you can suggest that maybe i need to change throttle ? thanksfully reply asap 🙏

[@TheGadagada]

Thanks 😊

[@2Fifty1GSA]

I’m having a problem my throttle stopped working. I tried to check the wires black is ground, red is 5v, green is 41.5v, and white is 12.7v. so what could be the problem? When I hooked it up like in the video my votes shot up 110v and shut off the multi meter. There is only six wires in this throttle cable two are for pas yellow and brown. This white wire is the Signal wire but why is it reading 12v.

[@Rebar77_real]

Thank you!!

[@Rebar77_real]

Kiff, I programmed a bot. But, I didn't make it, too obvious. "Sighs"

[@johneischen3581]

does pedal assist test the same way?

[@Topsiekku]

I get max voltage 4.27. I use 5.01v for testing.

[@muhammadsaiful3041]

How to make a signal between 0 ~ 3v ? to control speed bldc only 50% from top speed

[@guisrtr5832]

My throttle signal is not varying the output signal. How much current does it need? Do I need to amplify the signal?

[@r4v5t]

I don't have any spare one for exact test of current right now. It's probably not much, AA batteries provides enough current.

[@ahlidap1961]

Hi,I have a throotle like the one on the excellent video, that was working fine untill I decided to add a switch to kill the signal ( as an extra safety ) after that, as soon as switch On , it starts at once without thumb action. Then decided to kill the power wire instead of signal, with same result . What may be the cause ? Thanks in advance

[@r4v5t]

Hi there, might be some resistance difference. Just guessing, not sure without a close look.

[@ahlidap1961]

@@r4v5t that was my thoughts exactly when I placed the switch in the signal wire, but does it have the same efect if placed on the power wire ?

[@r4v5t]

I think that would be possible bc of how those 2 wires are connected inside the throttle.

[@ahlidap1961]

@@r4v5t Hi again, just tested with another brand new throotle ( without any modification) same readings !!! Can it be the esc parameters ? Thanks for your precious info ( and patience):)

[@r4v5t]

Sure it can. Make sure the ESC, motor and battery voltage are matching. Also you can try with lowering the voltage of a battery as long as you stay in ESC's minimal voltage. Sometimes motor wires interacts with each other and causes the issue. Then it helps to twist them or mount differently. @@ahlidap1961

[@marocmoshada7824]

Chokran

[@Topsiekku]

thanks

[@CarlosOrtiz-ok5jn]

Great joob 👍

[@maricelsimpauco1983]

Can you use this throttle in a 24v or higher e scooter?

[@r4v5t]

No problem if it matches the controller.

[@nelsoncastillo4506]

Could I replace the accelerator with a connection to an arduino pwm pin to accelerate wirelessly? pin generate voltaje between 0 to5 [v].

[@Mrcodewarrior77006]

Hi, so does this assume the throttle is bad? It only went up to 3.8 volts.

[@r4v5t]

It's ok because it's in the gap of 0.8 to 4.3 of output voltage from the throttle (like I wrote in 2:30). The input voltage is a different thing (only batteries).

[@Mrcodewarrior77006]

I read a couple of posts indicating it should read 4.3v if you put 5v into it. I used a variable voltage power supply and dialed in 5v and got 4.3v out of mine. Which is kind of disappointing because I'm trying to figure out why the acceleration on mine is somewhat sluggish.

[@r4v5t]

Some sources says 4.3v (only at full twist) is still ok. So it may be something else (ESC?). First of all I would probably try decreasing voltage to the throttle a bit. Testing with a different thrott would throw some light. However might be just ESC. I had some issue with mine bc it was cutting off or work to abruptly. Than I changed few minor things like twisting some wires, placement, etc. And it's working lot better now.

[@Mrcodewarrior77006]

Thanks for the input. I was going in that direction next with the wiring and connectors. Our 'frankenbike' is driven by a generic 48v 1000w controller to a brushless front wheel hub. Problem is the bike has been dropped a few times so finding the issue may be difficult. My next step might be to take apart the hub since it's got a weird squeaky rattle inside of it.

[@harchandsingh8462]

थरोटल में ट्राजिस्टर कौन से नम्बर का लगता है

[@hakkiali1103]

But if throttal volt from 0.8v to 3.6 v is it rgiht thanks

[@r4v5t]

Yes, bc input was only 4.4v.

[@mostafama]

From where can I buy a throttle for 12v dc motor?

[@mohamedfahmy6923]

You need controller first Then connected to the throttle

[@roncooke2188]

not sure what happened but i lost any sound

[@jacobclark89]

I've been experiencing extremely dangerous episodes of the motor not stopping as soon as I turn the throttle , related to high humidity conditions ! I think it's because the humidity increases conductivity of the hall sensors in the throttle . can you recommend a good throttle ? I think the manufacturers are going to have to make them water proof. I experienced the same issue with a different throttle , battery and controller. just using the bike after a rain storm is enough to cause the issue. We must have a throttle will a switch to cut power ! ☠️ Also stop using hot glue on the Hall sensors ! It melts were I live ! And make the throttle not Fall apart so easy , and they need to be made with softer grips or made to accept normal grip's.☠️

[@ianmangham4570]

You again 😀

[@nickraber8094]

Good info. Slow progress ans very dark. For the love of a holy guy, turn on a light never time

[@r4v5t]

Heyyy! You found it. That would go on the next episode...

[@ianmangham4570]

Works doesn't work test

[@2Fifty1GSA]

I’m having a problem my throttle stopped working. I tried to check the wires black is ground, red is 5v, green is 41.5v, and white is 12.7v. so what could be the problem? When I hooked it up like in the video my votes shot up 110v and shut off the multi meter. There is only six wires in this throttle cable two are for pas yellow and brown. This white wire is the Signal wire but why is it reading 12v.

[@r4v5t]

Not sure about this. Maybe controller problem.