DenBommer wrote: ↑08 Jul 2024, 20:43
Tommy Cookers wrote: ↑08 Jul 2024, 18:26
55 years ago I witnessed the unofficial AWD British Grand Prix
it started concurrently with the official GP but fell back
the winner had a secret - his car had 0%/100% torque split
Do you mean that the winner had only rear-wheel drive?
It's been 55 years now. I also think we're talking about a different era now with electric motors.
iirc the winner of the imaginary AWD race was Johnny Servoz-Gavin (finishing 7th or so in the actual GP)
these cars having torque split adjustable in the centre differential - he chose 0/100 split as it was fastest
(iirc AWD won with and without gas turbines at Indy)
yes we are in a different era - with and without electric machines aka motors
an era when we can control our motors proximity to wheel-slip a thousand times a second
yes we might cosily regard it as torque-control or rpm-control or anything really but ....
if the FIA lets you do this you might well use 2 or 4 motors each driving an axle (as mzso implies)
already happening is the thousand-times-a second shaft position flagging to the control electronics
(time stamps via the supply leads)
this is how a brushless motor (or eg a reluctance motor) is worked these days
the programmed control response is transparent and subject thereby to rules but .....
in extremis there could be (off-program) pole slipping or skipping amounting to something like TC, ABS, or Senna-foot
and/or tyre-warming by 'dither'