How to reduce roadbumps?

[Gladi8or]

I am very pleased with gsce. Since I changed my wheel to direct drive servo I have a problem with the ffb. It is really great but the roadbumps are to strong. Please explain how it is possible to reduce them. Which settings have to be changed in the controller.ini?

 

[Patrick Giranthon]

I know two guys at SRE who own a direct drive. Will ask them.

 

[Gladi8or]

This is great news! Maybe it is possible to share some settings for dd-wheels?

 

[Patrick Giranthon]

Yes, I will try to find you the .ini

 

[Fernando Zart]

One way that I've used with success was to edit the .tdf file of the track and change the [FEEDBACK] section, lowering the numbers of BumpAmp and BumpWavelen (sometimes even to zero) and still be able to feel the road. Dunno if this is what you're looking for.

 

[Gladi8or]

I am looking for changes in the controller.ini. I just want to reduce the bumps which are transfered to the wheel. I need the bumps in the track.tdf because I am using simvibe.

 

[rhombeus-fr]

hello,
I also have a diy wheel, I do not encounter any problem with the bumps.

The engine vibration diet and the contact was a problem.

What equipment do you use?

My .ini here
https://www.dropbox.com/s/u2o1zs5zx434r0e/Controller.ini?dl=0

This is my equipment:



Alim = 48v 12.5A
Alim = 12V 5A
moteur = Mige ST130-M10010
driver = Granite VSDE
carte de commande = SMT32F407DISCOVERY + FW MMos

In Gdtool i have enter 11A for 8.3A RMS for 18Nm, and 52v for 240rpm

 

[Gladi8or]

Nice setup!

Thank you for your controller.ini but there is no big difference. I set nearly everything to 0 still no noticeable difference. Maybe we have to change the realfeel plugin?

My modified ini

[ Force Feedback ]
FFB Device Type="1" // Type of FFB controller: 0=none 1=wheel, 2=stick/custom, 3=rumble pad.
FFB Effects Level="1" // Number of FFB effects to use: 0=No Effects, 1=Low, 2=Medium, 3=High, 4=Full, 5=Custom.
FFB Gain="0.75034" // Strength of Force Feedback effects. Range 0.0 to 1.0.
FFB Ignore Controllers="0" // Do not use FFB on: 1=controller1, 2=controller2, 4=controller3 (or add values to ignore multiple controllers)
FFB Throttle FX on steer axis="1" // 0 = Throttle effects on throttle axis, 1 = throttle effects on steering axis.
FFB Brake FX on steer axis="1" // 0 = Brake effects on brake axis, 1 = brake effects on steering axis.
FFB steer vibe freq mult="0.00000" // Controls frequency of steering vibration. Recommended: 0.5 to 1.0, 0.0 disables steering vibration.
FFB steer vibe zero magnitude="0.00000" // Magnitude of steering vibration at 0mph (reference point).
FFB steer vibe slope="0.00000" // Slope of line defining magnitude as a function of frequency (used with FFB steer vibe zero magnitude).
FFB steer vibe wave type="0" // Type of wave to use for vibe: 0=Sine, 1=Square, 2=Triangle, 3=Sawtooth up, 4=Sawtooth down.
FFB steer force prediction="0.00100" // Time into the future that force is predicted, to help counteract wheel latency (0.0 to disable)
FFB steer force max change="100.00000" // Maximum change per second based on current difference between calculated and applied force, to help avoid jerky behavior (values under 15 or so should reduce jerkiness, 100 disables)
FFB steer force neutral range="0.02000" // Max distance from center "neutral force" location where forces are reduced to help avoid oscillation (0.0 to disable)
FFB steer force neutral function="1.00000" // Function to apply near neutral force location, in order to tune out FFB "deadzone" but keeping oscillations in check: 0.0=original, 1.0=new
FFB steer force exponent="1.00000" // Steering force output "sensitivity". Range 0.0 to infinity. 0.0 to 1.0 = higher sensitivity, greater than 1.0 = lower sensitivity.
FFB steer force input max="11500.00000" // Recommended: 11500 (-11500 if controller pulls in the wrong direction).
FFB steer force output max="2.00000" // Maximum force output of steering force, recommendation 0.8 to 2.0
FFB steer force grip function="0.30000" // Range 0.0 to 1.0 (previous hardcoded value was 1.0) - lower values will make steering force decrease LATER as front tire grip is lost - try 0.3
FFB steer force grip weight="0.90000" // Range 0.0 to 1.0, recommended: 0.4 to 0.9. How much weight is given to tire grip when calculating steering force.
FFB steer force grip factor="0.50000" // Range 0.0 to 1.0, recommended: 0.2 to 0.6 (previously hardcoded to 0.4). How much of a factor the front wheel grip is on the steering weight.
FFB steer front grip fract="0.00000" // Range 0.0 to 1.0 (previous hardcoded value was 0.0), additional effect of front grip loss on steering force
FFB steer update threshold="0.00000" // Amount of change required to update steer force/vibe (0.0 - 1.0). Lower values = steering force updated more frequently = lower frame rate.
FFB steer friction coefficient="0.14000" // Coefficient to use for steering friction. Range: -1.0 to 1.0
FFB steer friction saturation="1.00000" // Saturation value to use for steering friction. Range: 0 - 1.0
FFB steer damper coefficient="0.13000" // Coefficient to use for steering damper. Range: -1.0 to 1.0
FFB steer damper saturation="1.00000" // Saturation value to use for steering damper. Range: 0 - 1.0
FFB throttle vibe freq mult="0.00000" // Scales actual engine frequency to force FFB vibration frequency. Suggested range: 0.10 to 0.50
FFB throttle vibe zero magnitude="0.00000" // Magnitude of engine vibration at 0rpm (reference point).
FFB throttle vibe slope="0.00000" // Slope of line defining magnitude as a function of frequency (used with FFB throttle vibe zero magnitude).
FFB throttle vibe wave type="0" // Type of wave to use for vibe: 0=Sine, 1=Square, 2=Triangle, 3=Sawtooth up, 4=Sawtooth down.
FFB throttle vibe update thresh="0.00000" // Amount of change required to update throttle vibe (0.0 - 1.0)
FFB brake vibe freq mult="0.00000" // Scales actual brake rotational frequency to force feedback vibration frequency.
FFB brake vibe zero magnitude="0.00000" // Magnitude of brake vibration at 0mph (reference point).
FFB brake vibe slope="0.00000" // Slope of line defining magnitude as a function of frequency (used with FFB brake vibe zero magnitude).
FFB brake vibe wave type="0" // Type of wave to use for vibe: 0=Sine, 1=Square, 2=Triangle, 3=Sawtooth up, 4=Sawtooth down.
FFB brake vibe update thresh="0.00000" // Amount of change required to update brake vibe (0.0 to 1.0)
FFB rumble strip magnitude="0.15000" // How strong the rumble strip rumble is. Range 0.0 to 1.0, 0.0 disables effect.
FFB rumble strip freq mult="0.30000" // Rumble stip frequency multiplier 1.0 = one rumble per wheel rev.
FFB rumble strip wave type="0" // Type of wave to use for vibe: 0=Sine, 1=Square, 2=Triangle, 3=Sawtooth up, 4=Sawtooth down.
FFB rumble strip pull factor="0.50000" // How strongly wheel pulls right/left when running over a rumble strip. Suggested range: -1.5 to 1.5.
FFB rumble strip update thresh="0.07500" // Amount of change required to update rumble strip effect (0.0 - 1.0)
FFB jolt magnitude="0.10000" // How strong jolts from other cars (or walls) are. Suggested Range: -2.0 to 2.0.

My equipment
- MIGE Servo M130ST-M15015 (30Nm)
- Open sim wheel with MMOS Force Feedback

 

[rhombeus-fr]

Thanks
Dont change my realfeel data.
my mmos setup

in controller.ini, the ffb effects level is very important, change for 4.

For bumps, test changed the rumble effects.

 

[Gladi8or]

It only feels right to me if I set ffb effects to "low". I read that higher settings ad artifical effects. You should change steering rotation to 540° for gsce. There is a new version of the mmos tool. Now it is possible to create profiles. I think "FFB rumble strip" is the parameter for the curbs.