It sounds like they have the PID tuning down nicely. My biggest complaint about both current shimano and specialized ebike systems has been the PID. No matter which mode I tried, they always felt awkward in their delivery.
PID loops that involve significant human inputs are really difficult to optimise. So in some ways it’s not surprising that the two S’s haven’t got it dialled in. On the other hand, given the resources the development would have taken, it is really disappointing that they haven’t got such a fundamental aspect of their operation right. My team has been optimising the behaviour of UAV’s and other robotics for years. If they gave me a bike for a month and sdk/tuning access, I could have it tuned to perfection.
Oct. 28, 2021, 4:59 a.m. - Sean Chee
It sounds like they have the PID tuning down nicely. My biggest complaint about both current shimano and specialized ebike systems has been the PID. No matter which mode I tried, they always felt awkward in their delivery. PID loops that involve significant human inputs are really difficult to optimise. So in some ways it’s not surprising that the two S’s haven’t got it dialled in. On the other hand, given the resources the development would have taken, it is really disappointing that they haven’t got such a fundamental aspect of their operation right. My team has been optimising the behaviour of UAV’s and other robotics for years. If they gave me a bike for a month and sdk/tuning access, I could have it tuned to perfection.