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Clutch not locked but not slipping??
03-04-2012, 08:12 PM,
#9
 
NaN Wrote:The SetTorque naming is wrong as it applies/adds torque. As long as it is used only once per step it still ok, but should be fixed nonetheless.

I ran into the oscillation issue when I started contributing to vdrift. The simulation will get worse with lower wheel inertia and higher clutch torque.

Which values of wheel inertia are you using? im using a value of 1.8 kg*m^2 and a value of 0.3 for the engine.
With a fixed time step of 0.02 (50 steps per sec) im experiencing oscillations (although not with a smaller time step). More, I experience a strange behavior of the clutch torque: while driving, especially in lower gears, with throttle released if I push the full throttle clutch torque raises with a lag respect of the engine torque. The result is that it seems that the clutch is slipping for something like half a second.
Another problem that im facing is that i have to put engine inertia in the driveline too (in this way: engineInertia *Sqr(ratio)). If I omit this, i experience heavy and uncontrollable oscillations. But in this way the inertia of the driveline is huge, so even with a sport car settings I cant make a burnout start.

NaN Wrote:There is an alternative implementation which won't have this issues. But it is not ready to go into master yet.

Would you like to share this implementation with us? im really getting mad in order to make my clutch working like i would.
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Messages In This Thread
Clutch not locked but not slipping?? - by NewLife - 03-02-2012, 07:20 PM
[No subject] - by NaN - 03-03-2012, 03:15 AM
[No subject] - by NewLife - 03-03-2012, 09:19 AM
[No subject] - by NaN - 03-03-2012, 11:48 AM
[No subject] - by NewLife - 03-03-2012, 03:07 PM
[No subject] - by NaN - 03-03-2012, 03:44 PM
[No subject] - by NewLife - 03-03-2012, 05:21 PM
[No subject] - by NaN - 03-04-2012, 04:28 AM
[No subject] - by NewLife - 03-04-2012, 08:12 PM
[No subject] - by NaN - 03-05-2012, 10:33 AM
[No subject] - by NaN - 03-05-2012, 10:38 AM
[No subject] - by NewLife - 03-07-2012, 09:10 PM
[No subject] - by NaN - 03-08-2012, 04:39 AM
[No subject] - by NewLife - 03-10-2012, 10:36 AM
[No subject] - by NaN - 03-10-2012, 12:28 PM
[No subject] - by NewLife - 03-17-2012, 12:28 AM
[No subject] - by NaN - 03-17-2012, 06:52 AM
[No subject] - by NewLife - 03-22-2012, 01:16 AM
[No subject] - by NaN - 04-01-2012, 09:37 AM

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