TSDZ8 (or similar Tongsheng/Bafang UART mid-drive) — separate speed limits for PAS vs throttle?

[notsuiram]

I'm setting up a Tongsheng TSDZ8 mid-drive with an dz40 mini display. From what I understand, most UART displays have one shared max-speed setting that applies to both PAS and throttle together.

Is there any way — through display firmware, hidden menu options, or open-source firmware — to set PAS and throttle to two different speed limits independently? Or is this a hard limitation of the stock UART protocol/controller?

Curious if anyone's tried this on a TSDZ8 specifically, or if it's only possible with fully custom/flashed firmware. So any displays that can do this?

Thanks!

 

[E-HP]

I'm setting up a Tongsheng TSDZ8 mid-drive with an dz40 mini display. From what I understand, most UART displays have one shared max-speed setting that applies to both PAS and throttle together.

Is there any way — through display firmware, hidden menu options, or open-source firmware — to set PAS and throttle to two different speed limits independently? Or is this a hard limitation of the stock UART protocol/controller?

Curious if anyone's tried this on a TSDZ8 specifically, or if it's only possible with fully custom/flashed firmware. So any displays that can do this?

Thanks!

Not sure why the communication protocol would make a difference. Many controllers have settings to set the PAS speed limit by the assist level, but offer full power with the throttle. If you want to limit the throttle, you could go the open source firmware route; it should be something that can be programmed, although I’m not sure what the demand is for that feature. Have you posed the question in the Tsdz8 OSF thread.