VESC 6 EDU, the new little brother of the VESC 6

[Trampa]

Once chips become more available and the volume can be driven up, the price can fall. At the moment the components are very expensive and we start with small volume. Universities and students can get discounts for their projects. At this stage you can get 25 pound off if you purchase in advance.
For us it was important to design a controller that can actually control cheap motors, so that they can be used as proper actuators. And that saves a lot of money! The cheaper low side shunt designs simply can’t do that. So the EDU s a very good compromise in between having all the nice features and still being very affordable.

[rusins]

Omg, silent HFI was working at 100A with the motor stalled and completely saturated in that example video (timestamp 4:20 and onwards) I never had a good experience with regular HFI, so this looks game-changing!

@Trampa

VESC 6 MKVI

MK 6 already? When is that dropping?

[Trampa]

Silent HFI and HFI are worlds apart. sHFI works really astonishing precise and has a much higher resolution compared to Halls.

[poastoast]

good thing students can’t take the code and mess with it without getting in trouble with trademarks

[Trampa]

All the VESC code is GPL licensed and can be worked with. VESC-Tool will soon get an app store like structure to pull code from a code repository. This way people can publish code and users can find and use code. Similar to the app stores used to install apps on tablets and smart phones.
It is still a long way to go, but will happen.

[poastoast]

@Trampa

If you open yourself up you have to protect yourself in the same breath. Otherwise someone can grab the code and the identity and screw the original author over, or do other bad things, confuse customers, drive customers away from the authors distribution channels, or do things that are simply not in the interest of the project or authors.

i’d hope so

[xsynatic]

@Trampa

Silent HFI and HFI are worlds apart. sHFI works really astonishing precise and has a much higher resolution compared to Halls.

Where does it lie between

Hfi
A.S.S
V.S.S

?

[Trampa]

V.S.S. is a method to track the rotor at zero RPM using an audible very short HFI blop.
Silent HFI uses non audible HFI injection and models the rotor position throughout a certain RPM range.
It can model the rotor position so accurate that you can stop the motor at full RPM and it will stop in the exact position it originally started from. You can see that in the first video linked above @ minute 15 onwards.
Also the second short video from Elwin shows sHFI in position control mode. He does really fast motor movements around the original motor position.

[poastoast]

ASS is the best, can’t tell me otherwise

i don’t use any, but ASS is the coolest sensored sensorless silent noisy start

[Trampa]

The next batch of the VESC 6 will be MKVI already. They will feature automatic sensor voltage adjustment via software, a second UART port + spin to start can be disabled + some other cool new features.
They will a also handle up to 120A with proper cooling.We will update the website soon and put them on pre-order. As soon as some missing components arrive, they will be manufactured.

[rusins]

2 UART ports on a single ESC? Very nice!
Also roll to start being a software toggle is great.

@Trampa

handle up to 120A

battery current or motor current?
(Sorry for the derail)

[Trampa]

Motor side. We always talk motor amps…

[Andy87]

@Trampa

It can model the rotor position so accurate that you can stop the motor at full RPM and it will stop in the exact position it originally started from

That kinda scares the shit out of me.
Does it mean SHFI does track the motor position at any time? If so it means, if something goes wrong it will just stop the motor at x-speed oioioi
With hall sensors or encoder the tracking stops as soon as you roll (don’t remember the exact rpm, but it’s usually not more than 5km/h) so in that case if something goes wrong, you as minimum doesn’t drive fast and can probably manage the sudden stop.

[Trampa]

You would still only use it at a certain RPM range, similar to sensors. Then you switch over to BackEMFs.
But in position control mode you can track the rotor even at full RPM. Nice for robots or super fast 3D printers etc.

[Andy87]

@Plurf

Here’s a hint: “affordable” “education” “125gbp”, find the odd one

Wouldn’t say 125£ already falls in the not affordable range. Not super cheap, but less than a full tank of most of our cars right now.

[Andy87]

Good to know. That sounds way better

[Plurf]

but… you can get a makerx mini foc wich is vesc6 based,is able to 12s 80a for 140usd, which is 113gbp…
Not even mentioning BLheli compatible hardware…

[spei]

Oh cool to see another iteration of assssssss.
More important question is:

@spei

Uh-oh another big update. Will I be finally able to use bluetooth connection with windows machine and OFFICIAL vesc-tool or do I still have to wait for someone to port it?

[Trampa]

That unit won’t support sHFI, sensorless position control and high ERPMs. You would also need to solder up an extra capacitor bank. The ceramics on there are not really enough.

[poastoast]

that’s blheli compatible???