Hello there!
So being a tech geek, I recently bought a very powerful electric scooter, a Kugoo g-Booster that is on route to my doorstep. However as many of you can imagine, it’s not legal to drive (in Sweden), where the scooter laws are in a grey-zone. However one thing is clear, it must have a maximum speed of 20km/h (roughly 13.5mph).
Although I am a very careful driver with respect towards other pedestrians, a cop having a bad day could quickly lead up to an impounded scooter - not very nice for a 17 year old student trying to make ends meet.
To get to the point: I want a remote controlled system to toggle a 20km/h speed limit on the scooter. However I don’t really know if it’s possible? I should be able to just limit the PWM signal from the throttle, right? It is to be controlled remotely by a wireless relay connected to an analog input, making the arduino limit the PWM signal. I will be uploading some reference images on the controllers. Also, the speed limiting wire on the controllers does 25km/h, so still not really legal.
How would I go about checking what it is? I have a very basic multimeter, and I cannot confirm if it is a variable resistor or a pen signal. I’ll attach an image of the throttle below. Also, I have updated the images on the post.
What does that mean? Can not limit the speed remotely? Changing the settings all the time can get very annoying. Also I feel like I’m going to get in trouble if I play around with the scooter throttle while being approached?
Thank you so much for the information, a real life saver
I’ll double check the info with a multimeter, but if you are correct then it won’t be that difficult to make it work I imagine? Also, I assume the throttle power and ground should be able to power a lower powered MCU (say an esp32 for example) without any hassle right?
I am not understanding what you want to do with the MCU, but that is okay. Just look up HALL EFFECT and EBIKE THROTTLE. That should better explain what I wrote.
To clarify, my purpose is to limit the speed to 20km/h through a remote quickly so I do not get fined or my escooter taken away.
Also, could you please clarify the colors and wires? I understand red, but what do you mean by BLK? And WHT is white I assume? Which wire are you talking about by the way? The longest connection from the black wire up top? Or do you mean the wires between the motors? If you could post an image circling it I would be really thankful.
Hi,
If the image in your first post is of the controller electronics, you might be better to make an electronic speedo that makes a beeping noise as you approach the speed limit.
That way you have full control and you have not compromised the electronics of a new bike.
Hello! That sounds like a great idea, Ill keep that in mind. Maybe that, and a speed cap of 25km/h is the best way to go? I Will just have to hope that my scooter does not get impounded, in case i do get piller iver. It doesn’t really matter how fast I am going, but how fast the soirée can go. Maybe I’ll just wait until there is a commercial solution. Thank you!
Hello again! I know, but I want to control the maximum speed limit with a remote, not with the settings. That way I can quickly switch in case the cops pull me over.
Just in case you are not aware, cops are not stupid for starters.
Secondly, if they,ve pulled you over for speeding, chances are more than even that they have your speed recorded on radar.
Fight that in court if you will but again chances are more than even that you will lose.
Hello!
Sounds about right, but I doubt they will record my speed on a gun though, as I’ll mainly be in the city. Also, like aforementioned I consider myself a safe rider and always wear protection and show respect towards pedestrians. I just want to limit it for random checks, which can occur and has occured according to a couple of forums.
