Third Party Hardware

Hello there. I am using a scramboard, 54.6V 13s battery and a converted alternator as FOC motor on a motorbike.

I have no hall-sensors (yet) and no temp probe(yet).

It works pretty well @ 100amp motor current and battery current. 45kmh . Good torque. Good braking.

But it boggs at startup.

Rpm is limited @ 35k erpm , but is dependent on the rotor current. How can up this?

More important :  when going uphill, after 30seconds to 1 minit, the bike slows down. Current goes down to 30amps.

I got a bit bored during the lockdown and ended up designing a tiny VESC.

Will be doing two versions, 2-6S and 2-12S (the 12S version will be a bit more expensive as the fets are much more expensive)

These are the specs for the 6S version:

Hi All, 

I recently came across a very expensive senseless 10 kW electric boat motor from someone that I know with a defective esc. A replacement is not sold by the company, and I'd prefer the vesc. Thinking about using the vesc 6 mkiii.  I plan to use it at around the 5 kw range.

I was not able to find an acceptable solution for electric sailboat. The use case is unique and I found most sellers provide preexisting off the shelf motor solutions adapted poorly to the use case or engineered solutions not properly addressing the real world need. The solution if it existed would be 95% power generator and only 5% motor usage. I am not an electronics engineer but a software engineer, I do have some knowledge about BLDC inner workings from experience.

Hi guys ive got a vesc 6.6 that has a faulty stm32f405 and a faulty drv8301 chip. Im looking to purchase a replacement drv8301 but there are x2 options i can find. DRV8301DCA or DRV8301DCAR i cant work out what the differences between the dca and dcar are so i thourght id chime in here and ask the question. 

Hi everyone I'm using a Maytech SUPERFOC 6.8 with a 24V 15A PSU, and I'm using it to operate a bldc blower in FOC mode with hall sensor (auto recognition of FOC parameters ok).

The VESC responds well up to 60K ERPM - 90/93% Duty cycle approximately, and after the VESC shuts down the motor completely without signaling any failure.

To restart the motor I must press the stop button, set the PPM to idle and then raise it again.

The motor never exceeds the set current or others limits.

The firmware is the last available in the VESC TOOL.

hi guys,

i have FSESC V4.12 for 4 months and it was working great in combination with VX1 remote controller. VX1 receiver has VIN sens wire that is connected directly to positive lead of the battery for battery information on remote. so, today that pin came loose from receiver and touched 5v pin of CAN connector and now vesc wont turn on and now 5v rail is shorted the ground. ive checked only TVS diod and it look like its shorted too. 

**UPDATED SUMMARY**

v0.9 released on GitHub. Beta testing ongoing with success so far.

I have a 3rd party vesc and i went into the vesc software. i connected it within the software and it said i needed to update the firmware and hardware. i did this anf then tried to use my vesc after. i did all the correct things waited a while before unplugging. the vesc now skimpily wont work and the software wont allow me to change the vesc back to it original firmware and hardware. does anyone have any solutions on how to go back to hardware 4.12. thank you. 

What about using the votol em150 3kw 48-72v electric motor controller programmable?