Physics Differentials: Open and Limited Slip

[GaryUK]

In suspensions.ini there’s a [REAR] type named AXLE. Does anyone know what the default type of Differential is for the AXLE setting? I.e. is it Open or Limited Slip or a solid rear axle, I.e. no differential?
Does anyone know how to define the Differential type with a line of code? Specifically Open vs Limited Slip versus Solid Axle (none)?
Is there a good resource that lists all the options for coding suspensions.ini? For example, if you looked at sdk/dev/Formula K there’d be no indication that AXLE is even an option, so there should be a better resource.
Thanks.

 

[Stereo]

It's unrelated to suspensions.ini. Differential types are in drivetrain.ini either as [DIFFERENTIAL] for fwd/rwd, or the various AWD settings for AWD. In drivetrain.ini a POWER/COAST=0.0 is open, anything between 0 and 1 is limited slip, and 1.0 is solid. Usually even an open diff will be slightly above 0 due to friction though.

The options are as far as I know, DWB for double wishbone (as in formula k), STRUT for macpherson strut, AXLE for a solid axle (rear only, unsteerable), or ML for multilink (undocumented & unused, may not be implemented correctly). They're all compatible with fwd or rwd, any type of differential.

 

[GaryUK]

Very helpful, like always. a couple of details if I may:
1. I assume a low value, e.g., POWER/COAST=0.03, is simulating an open differential, yes?
2. What is the "PRELOAD" setting within [DIFFERENTIAL]?
3. If POWER/COAST=0.03 is simulating an open differential, then is POWER/COAST=0.5 a good approach to simulate the addition of an LSD, or will have better results with POWER/COAST=1.0?

Thanks again

 

[Stereo]

Preload is the minimum amount of locking the diff has in Nm, power/coast is added to it when the engine applies power or engine braking.

LSDs are probably mostly in the 0.2 to 0.5 range, 1.0 is only for spools.