Hello everyone,
Just starting this thread in // to my YZF built cause it more general and can be use for almost every EV.
Idea is to have 3 brakes commands on the bike. Mechanical front brake on the Handlebar Right side, Mechanical rear brake on the right foot, and regen' brake on the Handlebar Left side.
Regen, at list in my case, had to be controlled by a 0-5V input, just like the throttle.
I already prototyped a few systems using position sensors and it work, but the feeling is not natural, and almost impossible to control offraod when everything is shaking.
So I start a new prototype using an hydrolic clutch lever/master cylinder, an hydrolic tube (non aviation type) and a hydraulic pressure sensor.
So you can use this hydraulic lever just like a standard brake, and the harder you pull it, the more pressure you put in the hydrolic line, so the more regen you got from the controller.
For the moment, I turned a small adpater from brass that receive the brake fluid, holds the sensor and got a bleed screw at the end. (picture attached)
The sensor I used is a PX3 series from Honeywell that goes up to ~50bar pressure.
https://sps.honeywell.com/fr/fr/pro...ensors/industrial-pressure-sensors/px3-series
I took one I had in stock and modified the thread on the lathe to fit a G1/8 that I've got on the adpater.
Next steps:
- Test it on bench to verify that the 0-5V evoluates correctly with the brake lever feeling.
- Mount it on a bike and try to find a satisfying brake feeling in real life
Keep you informed,
Ben
Just starting this thread in // to my YZF built cause it more general and can be use for almost every EV.
Idea is to have 3 brakes commands on the bike. Mechanical front brake on the Handlebar Right side, Mechanical rear brake on the right foot, and regen' brake on the Handlebar Left side.
Regen, at list in my case, had to be controlled by a 0-5V input, just like the throttle.
I already prototyped a few systems using position sensors and it work, but the feeling is not natural, and almost impossible to control offraod when everything is shaking.
So I start a new prototype using an hydrolic clutch lever/master cylinder, an hydrolic tube (non aviation type) and a hydraulic pressure sensor.
So you can use this hydraulic lever just like a standard brake, and the harder you pull it, the more pressure you put in the hydrolic line, so the more regen you got from the controller.
For the moment, I turned a small adpater from brass that receive the brake fluid, holds the sensor and got a bleed screw at the end. (picture attached)
The sensor I used is a PX3 series from Honeywell that goes up to ~50bar pressure.
https://sps.honeywell.com/fr/fr/pro...ensors/industrial-pressure-sensors/px3-series
I took one I had in stock and modified the thread on the lathe to fit a G1/8 that I've got on the adpater.
Next steps:
- Test it on bench to verify that the 0-5V evoluates correctly with the brake lever feeling.
- Mount it on a bike and try to find a satisfying brake feeling in real life
Keep you informed,
Ben