teamtestbot
1 mW
Hi all,
Frequent reader but rather infrequent poster here; I operate primarily in the e-scooter and go-kart (and other weird rideables) domain, not so much e-bikes.
I come to you with a request for feedback on Chinese ESCs which have a 'self-learn' mode where they can automatically recognize Hall sensor configurations for any given motor. Many Chinese e-bike ESCs advertise this nowadays and I want to hear if people have had good experiences with them or not. The forum search did not lead me to much insight on how much penetration these controllers have into the e-bike maker market.
Basically what I did was catalog several different Chinese e-bike controllers from various eBay sellers and recorded a few different aspects of their functionality such as sensorless start and run, method of using Self-learn, etc. I've made a summary post on my website: http://www.etotheipiplusone.net/?p=2387 regarding the matter and pitched together an Excel spreadsheet that summarizes the findings.
My questions include:
1. What other makes/models of controllers have this feature that ES readers frequently use? I'm always out to expand the catalog, so sources of where to get these would be good.
2. Is this really useful for e-bikes with hub motors? Or can you assume that since it's a bike, you're basically going to be moving before hitting the throttle? The hub motors e-bikes I've ridden seemed to have no trouble starting themselves sensorlessly, I supposed because of how many poles/slots they have.
3. Since my 'research' was appending sensor PCBs to a typical R/C outrunner for propulsion applications, do you guys think there's a market for R/C type conversions with these controllers? I'm not out to sell anything so far, but I'm genuinely curious as to how many R/C conversion projects have been stymied because of the difficulty of arranging sensors. As my site shows, I've been developing a standardized set of sensor PCB mounts and plastic mounting rings.
Otherwise, feedback, comments, and questions are welcome. I ideally don't want to replicate work that already has been done on this forum...
Frequent reader but rather infrequent poster here; I operate primarily in the e-scooter and go-kart (and other weird rideables) domain, not so much e-bikes.
I come to you with a request for feedback on Chinese ESCs which have a 'self-learn' mode where they can automatically recognize Hall sensor configurations for any given motor. Many Chinese e-bike ESCs advertise this nowadays and I want to hear if people have had good experiences with them or not. The forum search did not lead me to much insight on how much penetration these controllers have into the e-bike maker market.
Basically what I did was catalog several different Chinese e-bike controllers from various eBay sellers and recorded a few different aspects of their functionality such as sensorless start and run, method of using Self-learn, etc. I've made a summary post on my website: http://www.etotheipiplusone.net/?p=2387 regarding the matter and pitched together an Excel spreadsheet that summarizes the findings.
My questions include:
1. What other makes/models of controllers have this feature that ES readers frequently use? I'm always out to expand the catalog, so sources of where to get these would be good.
2. Is this really useful for e-bikes with hub motors? Or can you assume that since it's a bike, you're basically going to be moving before hitting the throttle? The hub motors e-bikes I've ridden seemed to have no trouble starting themselves sensorlessly, I supposed because of how many poles/slots they have.
3. Since my 'research' was appending sensor PCBs to a typical R/C outrunner for propulsion applications, do you guys think there's a market for R/C type conversions with these controllers? I'm not out to sell anything so far, but I'm genuinely curious as to how many R/C conversion projects have been stymied because of the difficulty of arranging sensors. As my site shows, I've been developing a standardized set of sensor PCB mounts and plastic mounting rings.
Otherwise, feedback, comments, and questions are welcome. I ideally don't want to replicate work that already has been done on this forum...