How to enable regen? Infineon XC846 Controller, SW900 display.

Hi All,

I am fairly new to the e-bike world but have a long history with BMW's / wiring / tuning and controllers. I purchased a second hand ebike conversion kit for my second build but I am trying to enable regen braking on this controller.

Specs: Infineon XC846 chip, HY3208 mosfets. Allegedly a 48V at 35 amp controller. Does anyone have more information on this controller? I wasn't able to really find anything useful. I also have a USB-TTl converter but can't seem to find the RX/TX pins on this board for the chip?

It also came with a SW900 display which seems to function properly. I was also wondering what the current limit setting (P15) is? Is it phase or battery?

Thanks!

Kai

Connecting the EBS to GND via a switch should give you regen.

Ever try regen on that EBS pad yet? That board is the same that came in my ebikeling controller. I added a wire to that EBS pad last year, but haven't taken the time to try connecting it to ground yet. I need to get on that...

Regen DOES work on this Ebikeling 1500 watt 15 FET controller that I bought in 2018. Pulling the EBS pad low (connecting it to a ground wire) DID enable regenerative braking, and should be done before turning the controller on. Then pull the brake lever, and after a delay regen braking will fade in providing your battery voltage isn't too high (fully charged). I've seen peaks of over 10 amps while monitoring the smart BMS and riding down a hill.