Recent content by fsfs

Basically any 18650 cell will do.

Just to clarify. I have the ability to change software in the VCU (running my own custom build). The clutch is wired into the VCU -- does not sit between the throttle and the VCU. This is meant to be a FYI in the sense what can be done. Don't expect to be able to buy something like this.

I have played around with a number of things as far the control goes. For bikes I'm not really a fan of the "single input" philosophy. If you like LHRB that obviously conflicts with the clutch. We will try clutch + thumb brake on a bike to see how that works/feels. For me personally I find that...

Suppose you want exactly zero wheel torque (neither positive nor negative torque). The easiest way to do this is pull in the clutch. It is difficult to do this with the throttle -- to keep it in exactly the right position for the torque request for the inverter to be zero. With the clutch it is...

I tried a little experiment and I really like how it performed. I was riding down a mountain on a logging road -- regen was cranked way up. I had the throttle fully closed and used the clutch to control rear wheel regen/braking. It worked really well. Another rider tried it and liked it too. It...

The phone caught on fire (from the amount and smoke color the battery inside the phone). Looks like the phone got hit by the concrete pillar.

If/when a production version comes I doubt the solution will be a dual varg battery. Don't fixate on the kwh number and other specs of the bike in the photo.

it is a brilliant machine.

Sva elektronika je iz HR. Firma je u Zagrebu, ali inženjeri iz cijele hrvatske.

@Sunce Just curious, are you from former YU?

This might help for some situations, but it has at least 2 major limitations. 1. In a low HP map it cannot be used to help loft the front. 2. It cannot be used to eliminate engine braking. (and there might be more)

OK, this time I read more carefully. AFAIK (since i worked on the software which was a while ago) there is no fault storage or remembering. So if it was just the cells, replacing the P group should do it. I cannot be sure, but my guess is something wrong the the BMS. That the BMS discharged...

A whole P group is shorted. That battery half is pretty much useless.

How the throttle works is a highly subjective thing. Also, things such as flywheel for sure have an effect on throttle response even though not directly part of the throttle response. So why do some people prefer the way the Alta responds? Not sure... could be flywheel, could be the throttle...

We can try both a ramp rate and a filter. Although, flywheel achieves a similar effect even without a filter/ramp-rate on the throttle. As long as the filter is not too slow, it should not induce oscillations. For start I can try a filter only -- adjustable time constant with option to filter in...