WIP FFB is vibrating

yeah it seems that some frequencies have changed, so you have to ask to Fanatec

 

Yeah sorry I use DAMPlugin. Here is my current config, so I'll test your config since I see there are some differences

 

What do you mean?

 

You just have to change the values of:
[Global Channel Options]
[Base Channel Config]
[Extra Channel Config]

 

Here it is
Also one thing I forgot to mention is that vibration is stronger on medium tyres compared to soft

 

Please disable FFB and drive as similarly as possible - the resulting logs might make for an interesting comparison. (ie how much is happening in the physics, vs amplification/resonance in the wheel/drivers)

 

I turned off FFB in drivers

 

Thanks, that looks pretty similar, so looks like it's game physics. If it's different from recently that would be intriguing...

 

Sorry if this has nothing to do with this issue, but precisely yesterday I had a kind of that after two laps. Then I realized that I had been driving like a fool, very fast and without a care. I returned to the garage and began to drive really catiously, and the problem didn't present again. So I think that when tires are wrong treated maybe a flat presents and that makes the wheel vibrates. This explanation has the unconvenient that it seems many people doesn't suffer from it, when if true it should be very frequent (a possible explanation for this it's that not all cars do this and precisely the widely used cars are who don't, and they are widely used precisely because they don't present it). But if true, it's very good, and it shows the strength of the ISI tire model: you have to drive really caring the tires.
To add to that that driving over kerbs in the first laps with cold tires do damage the tires.

 

So what do I do next? Should I report the bug to S397?

 

rF2-ffb is quite sensitive to flat spotting. I'm not saying it is / isn't correct to RL, but it occurs quickly with brake lock or loss of control.
Over time, the ffb-effect may lessen as the tires wear down, especially if you push them hard.

 

again, eliminate the issue of POSSIBLE Flat spotting by driving a GT3 with ABS cranked up. If the vibration persists then it is NOT flat spotting, but a possible software/hardware issue. If the vibration is minimized...then driving style.

 

Can you messure the the time betrween two spikes. Just to get the freq. To get a second "Marker" in Motec use the Space bar and you get a second green Marker. The delta is shown on the buttom of the Motec-Window. Take care that you don't messure it on curbs!

 

That's definitely a possibility. You can identify them just by doing it practically in rF2. Or also in Motec. Flat spots leave traces on the FFT. I call these things "Flatspot Ramp". Should look something like this if it's a flat spot.

 

is this good?

 

So just under 38Hz, which is also available to me.
The freq is normal and fairly common in rF2. What is not normal, the deflection of the Freq. I have almost 10%, with lots of clipping @Spa-Eau Rouge. That means my "Car spcific multi" is set too high. With a correct setup FFB that freqs should fall under 10%. You got 20%, 25% and maybe even 30% in some cases. I think your "Specic Car Multi" is set far too high!

 

I havent changed any setting, it was working fine for the months

 

Do you got a Motec-log-file where you drive a few laps?

 

Here is whole stint, medium tyres https://we.tl/t-OSV6cVN27w

 

wow..... okay! That is not the Car specific multi...