Now that I have my VESCs, I'd like to share some settings that I think is good for a faster CARVON Single Hub startup and better braking. The Single Hub + VESC's performance is highly affected by the remote control you use and the VESC setting for it.
These are only recommended settings and you can still play around with your setup. If it is not working for you, just let me know and I'll try to see what settings can be best for you. Other CARVON Single + VESC riders can also share their settings on this thread as rider's weight, terrain and riding styles are not constant. I will add more posts, especially ones with videos as I find more free time.
The first thing to do is to watch this:
[youtube]OtuofrQr3F8[/youtube]
So basically you want to setup your VESC with the remote you are using. I will setup the Badwolf GT2B. This setup is basically the same with all GT2B remote and also with the 2.4Ghz mini remote.
If you watched the youtube video, you would notice at 2:12 that Marcin's full throttle still has not gone up to 100% of the display. But when I do full throttle detection on the GT2B, it's full 100% on the display as pictured above in the VESC1.jpg attachment. This is because Marcin is using a Wii remote and the throttle-stick travel of it is not as long as the GT2B. So what I've found out is that if you want a faster startup on the Single Hub, you want your remote to behave like the Wii remote or the Chinese E-board remote (the one that Enertion sells)--which also has a short throttle-stick travel.
On VESC2.jpg attachment (I don't know why it's not showing up), you can see that I changed the "Maximum Pulsewidth" value to 2.10 and now my full throttle on the GT2B is at 95% which is the same with Marcin's full throttle display on the video. This means that you can fully jam the throttle on the GT2B and the VESC will take this as a sign that you want to get to the top limit right away and feed the necessary amps to the Hub motor to get you there fast.
It's still not "that fast" that you get thrown off the board, but it does get fast rather quickly especially once the board rolls to 2 or 3 mph. I've gotten up to 29 mph just like that but had to back off because of the wobs. The Single wobbles more than the Dual hubs, I'm assuming it's because of the uneven torque. You can let off the throttle while it's accelerating and there will be no drag or slow down, it will just keep coasting at that speed which is the beauty of the Hub motor. Then you can throttle it up again and it will be smooth, no cogging torque, no jerking or catching up with the belt.
So on VESC3.jpg attachment, I also changed the "Minimum Pulsewidth" to 0.95 from 1.00. There is now 3% on display when I do a full brake on the GT2B, whereas it was 0% before. This means that I can fully reach the maximum braking of the VESC. The maximum braking can also be changed on the Motor Configuration tab. Be aware, that braking on a Single motor is not as efficient as on Dual motors. So I advice CARVON riders (even those that use Dual Hub motors) to always keep their distance from things like cars or gates; and to coast when approaching an intersection or a blind spot. Practice your evasion maneuvers and always have an exit direction in case of emergency, especially if you are going to go fast. DO NOT JUST RELY ON THE BRAKES.
One more thing which is very important when you are changing the max and min of the Pulsewidth, make sure that you always have the display on or near the 50%, just like on VESC4.jpg. This is the middle of the throttle stick and should not be lower than 47% or higher than 53% because you could be turning on a little of the brakes when you think you are in neutral. This means that you could be manually pushing the board and think that it's coasting free because there is hardly any drag, but actually the brake is on. This will heat up your motor considerably and eventually burn it up. So make sure you are close to 50%. I would also increase the Deadband to 0.20 just to be sure you have enough room on your neutral point.
You can also change the Startup Boost depending on your weight. It will be ho-hum for the first 2 seconds, then will take off really fast. It's actually unsafe when it's set too high as you do not know when the boost is coming. I do not recommend setting it more than 0.100. You guys already know how to set this, and the other stuffs, so I'll just end this right here. If all else fails, JUST DO A LITTLE KICK BEFORE STARTING!
These are only recommended settings and you can still play around with your setup. If it is not working for you, just let me know and I'll try to see what settings can be best for you. Other CARVON Single + VESC riders can also share their settings on this thread as rider's weight, terrain and riding styles are not constant. I will add more posts, especially ones with videos as I find more free time.
The first thing to do is to watch this:
[youtube]OtuofrQr3F8[/youtube]
So basically you want to setup your VESC with the remote you are using. I will setup the Badwolf GT2B. This setup is basically the same with all GT2B remote and also with the 2.4Ghz mini remote.
If you watched the youtube video, you would notice at 2:12 that Marcin's full throttle still has not gone up to 100% of the display. But when I do full throttle detection on the GT2B, it's full 100% on the display as pictured above in the VESC1.jpg attachment. This is because Marcin is using a Wii remote and the throttle-stick travel of it is not as long as the GT2B. So what I've found out is that if you want a faster startup on the Single Hub, you want your remote to behave like the Wii remote or the Chinese E-board remote (the one that Enertion sells)--which also has a short throttle-stick travel.
On VESC2.jpg attachment (I don't know why it's not showing up), you can see that I changed the "Maximum Pulsewidth" value to 2.10 and now my full throttle on the GT2B is at 95% which is the same with Marcin's full throttle display on the video. This means that you can fully jam the throttle on the GT2B and the VESC will take this as a sign that you want to get to the top limit right away and feed the necessary amps to the Hub motor to get you there fast.
It's still not "that fast" that you get thrown off the board, but it does get fast rather quickly especially once the board rolls to 2 or 3 mph. I've gotten up to 29 mph just like that but had to back off because of the wobs. The Single wobbles more than the Dual hubs, I'm assuming it's because of the uneven torque. You can let off the throttle while it's accelerating and there will be no drag or slow down, it will just keep coasting at that speed which is the beauty of the Hub motor. Then you can throttle it up again and it will be smooth, no cogging torque, no jerking or catching up with the belt.
So on VESC3.jpg attachment, I also changed the "Minimum Pulsewidth" to 0.95 from 1.00. There is now 3% on display when I do a full brake on the GT2B, whereas it was 0% before. This means that I can fully reach the maximum braking of the VESC. The maximum braking can also be changed on the Motor Configuration tab. Be aware, that braking on a Single motor is not as efficient as on Dual motors. So I advice CARVON riders (even those that use Dual Hub motors) to always keep their distance from things like cars or gates; and to coast when approaching an intersection or a blind spot. Practice your evasion maneuvers and always have an exit direction in case of emergency, especially if you are going to go fast. DO NOT JUST RELY ON THE BRAKES.
One more thing which is very important when you are changing the max and min of the Pulsewidth, make sure that you always have the display on or near the 50%, just like on VESC4.jpg. This is the middle of the throttle stick and should not be lower than 47% or higher than 53% because you could be turning on a little of the brakes when you think you are in neutral. This means that you could be manually pushing the board and think that it's coasting free because there is hardly any drag, but actually the brake is on. This will heat up your motor considerably and eventually burn it up. So make sure you are close to 50%. I would also increase the Deadband to 0.20 just to be sure you have enough room on your neutral point.
You can also change the Startup Boost depending on your weight. It will be ho-hum for the first 2 seconds, then will take off really fast. It's actually unsafe when it's set too high as you do not know when the boost is coming. I do not recommend setting it more than 0.100. You guys already know how to set this, and the other stuffs, so I'll just end this right here. If all else fails, JUST DO A LITTLE KICK BEFORE STARTING!