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1. You've just quoted my own usage of the CA's cruise control back at me like you were correcting me. :P |
> I just wish I could tell the CA that I want cruise control to set speed instead of power (for current-mode or torque-mode controllers). If I'm cruising at 15mph and reach a hill, I want to stay at 15mph, not at 250w or whatever. |
> **Not a huge issue, since I do most of my cruising at the max speed cutoffs I set in the CA, but still.** |
2. Your praise of your thumb throttle is not unique. My half-twist throttle kicks in at about 4w minimum, and I have very precise throttle control with it. Cruise control also kicks right in at 4w, though there's no practical use for that. |
3. The whole point of cruise control is to set an arbitrary speed, and have the vehicle maintain that speed. Without workarounds that we both seem to be in agreement on, the CA's cruise control doesn't work that way. |
So how does CC work? I’m super curious but I def need better e-brakes |
A few different methods |
One is you hold the throttle at an exact position for N seconds, and it 'locks' the throttle setting. |
Others, make you push a button to enable it |
Generally, once enabled you can release the throttle and it keeps its last known setting till you apply throttle again |
or hit the e-brake |
(as you can guess, if you suddenly are about to crash, its not intuitive to have to hit the throttle to slow down..) |
That’s pretty nice. I wonder about figuring one for the BBSHD |
The only thing CA doesn't do is a locked cruise control where regen kicks in above the cruising speed |
Well correct myself it does and it doesn't. You can set it to auto regen if you go above current speed you toggle to. I remember enabling and disabling it because was annoying cruising and it suddenly ebraking |
Yep, that's a thing. I disabled mine because I'd be pedaling at my pedal-allowed speed limit, then stop pedaling for a second, and instead of coasting it'd regen down to 20mph. |
Yes that's 100% down to my settings, but it's exactly how I want it except for the regen part, so that got disabled. And IIRC they fixed that in one of the recent beta releases, but I'll have to check again. |
It also doesn't lock in your speed when you engage cruise control, and throttle appropriately to maintain that speed. Like cruise control does on any other vehicle. |
Cruise control on the CA just locks the throttle output voltage. It's not speed-based at all. |
I would love to have cruise control |
Well it is and it isn't. |
If the throttle output is high enough and you have a speed toggle on mf switch it will just cruise and accell to set speed |
You can also toggle speed while it's cruising and it will accell/decel to whatever you toggled to |
"Set cruise control to FULL THROTTLE and set up a way to override it with a variable vehicle speed limit" is not the same as just having normal cruise control. |
Like I mentioned before, it's what I do too (albeit with less granularity, since my CA inputs are occupied with other things), but it's not as nice as just having a cruise control that works how you'd expect cruise control to work. |
Yeah only other thing I could think off it having a 3 toggle switch that you could set to cruise control profiles to do what you want |
Like you flick it and it kicks in |
Yeah that's how I do it. One profile for 10mph, one for 20mph, and one for 20/28mph (depending on whether I'm pedaling). |
Then I just throttle to the cutoff speed, and let cruise control kick in. |
Either way we pretty much get much more than anyone else CC wise |
I mean... not really? |
KT has cruise control, but it's current-based, same as what the CA does on current-based controllers. |
Speed-based controllers with cruise control have it good (but everything else bad lol). |
The only ebike I've ever had that lacked cruise control was my BBS02 build, but even there, the PAS levels were effectively 9 cruise control settings. lol |
I mean the cruise control on other controller pretty basic |
The CA gives alot finer tuning on it |
The KT also requires a minimum of 12mph for cruise to work |
I'm not sure it does. |
With a speed-based controller (let's ignore the awful everything else for a moment :P ), cruise control can be engaged at any speed and it will solidly maintain any speed. 100% speed-configurable cruise control. |
That's true. I forgot about that. |
Also requires 7 seconds hold/press lol |
Does it? I don't remember it being that long, but it's been several years since I've KT'd. |
Yeah it's a funky in its right but yeah also with half twist get the benefit of a solid throttle hold like the thumb it's just full twists that are jank |
Also, I do agree that the CA cruise control is more tuneable than the KT cruise control. |
But only because we're not actually tuning the CA's cruise control. We're tuning unrelated functions so they override the inflexible cruise control function. lol |
True lol |
My thumb Throttle gets wish washy on rough roads. CC sounds great. Speed or current… but are there options for the BBSHD? I can’t seem to find any |
And yeah, I'm with you on thumb/half/full-twist throttles. I've got no desire to go back to full-twist. lol |
I guess If there was a half twist throttle that stayed at its position? |
BBSHD doesn't have any built-in cruise control function. |
Closest I've gotten is using the various PAS levels (yes I pedal everywhere lol) as more-or-less cruise control setpoints. PAS1 tops out at 10mph, PAS2 tops out at 15mph, PAS3 at 20, PAS4 at 25, PAS5 at 28. That sort of thing. |
That said, you could in theory add a Cycle Analyst to your BBSHD and cruise control that way. Not something I have experience with, but it's possible. |
Ah. Sounds like the expensive route hah. Maybe a half twist that stays at the same position without rider input |
That has the potential to be extremely dangerous. Even with brake sensors. |
Scenario: |
- Your throttle is locked in place, you're cruising along. |
- Car pulls out in front of you. You brake hard. |
- Relieved that you avoided a collision, you relax. |
- Bike shoots forward because you never un-stuck the throttle, WHOOPS. |
Similar scenario: |
- Same as above, but it could happen at any red light ever. Congrats, you've just launched yourself into traffic. lol |
Faaaaaaaair. Doing a lot of stuff from muscle memory here |
Yeah, speaking from personal experience, vehicle control muscle memory is a *really* sketchy thing to tamper with. |
An early control scheme for my current ebike had my regen brake lever doubling as a throttle. |
I built it. I mapped it out. I knew exactly how to work it. I still made mistakes, because *a brake lever should never double as a throttle.* lol |
But yeah, braking should just be braking. No extra steps to forget in the heat of the moment, or in relaxed muscle-memory-mode. |
But you could map throttle to brake ala Regen braking |
Could and have. |
- The potential for accidental braking is minimized, because you have to squeeze the brake lever to flip to regen mode. |
- And the potential to accidentally throttle when you release the brake before the throttle is minimized by controller programmers expecting you to do that, and disabling throttle until you actually return it to neutral. |
So it's a whole lot less dangerous than the other way around. It's a totally valid way to control regen if you don't want to go through the fuss of figuring out something better. |
That said, I'm still not a fan, still just from a muscle memory perspective. If I need to panic stop, I'm going for the levers, not the throttle. So I got variable regen working on a brake lever. |
Which Would probably map ok to muscle memory where gas Motors engine brake with no throttle input |
Throttle regen braking is the opposite of that, though. Unless you're referring to automatic 'passive' (for lack of a better word) regen, which is exactly like that. lol |
Most throttle-based regen works by, when you engage the ebrake sensor, mapping the throttle to regen. So, the more you twist the throttle, the harder you brake. |
That’s what I meant |
The passive regen type |
Ah gotcha. |
I've never used that style (I like being able to just coast), but yeah, seems totally reasonable. |
Yeah I mean there would need to be a zero point where the power hits zero, but not quite into regen like at 10%position power is 0/0, then at 5% it’s regenning 50% and 0% position it regens 100% |
Downside (for me) is that such an arrangement still isn't great for pedal-assist setups. |
For motorcycles, mopeds, and throttle-only ebikes, I'm sure it's great. |
Fair, would have to disable the throttle entirely when using PAS |
:sheyes: |
Easy fix lol |
Probably BMS just tripped |
lol wtf... |
Hopefully the bms tripped and didn’t short/zero out all the cells. Dang that’s shit |
resistance across controller battery input. |
0.0 ohms |
I think it's toasted |
@NCC1941 whaddya think? |
xP |
Hey! What do you think, can I try to power this controller with a 14s battery? |
no idea if i will break-it with a 14s |
It won't I'm more concerned about that poor shunt mod |
That's pulling way more than peak 40a and I'm guessing it's a generic battery not rated for that |
There are several batteries that I built myself. 13s7p and 13s8p. The controller boils while driving but the batteries stay completely cold. |
The mod does what it should, the thing now drives 30 mph with the 1500 watt controller üôÇ |
i think my battery is okay |
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