ispano6 wrote: ↑05 May 2026, 18:52
Tommy Cookers wrote: ↑05 May 2026, 18:43
ispano6 wrote: ↑05 May 2026, 18:27
It would be a software managed synchro that needs to handle the blending of the recovery system with the load and power that is put through the MGU-K. The reduction gear is a single fixed ratio.
MGU‑K → gear reduction → crankshaft → clutch → gearbox → differential → wheels
there is no mechanical ie positional blending ...
because the gearbox input shaft is permanently in a fixed mechanical relationship with the MGU-K via fixed gearing
there is only (some) force blending done by the active continuous variation of the MGU-K electrical energisation
this isn't perfect
Right, no mechanical blending, only software driven RPM blending of the MGU-K and 1 reduction gear to match engine RPM. The engine braking and gearbox sync issues can cause lock ups and torque spikes/holes, overheating, and derating that generally means sub-optimal operation for recovery.
maybe a controlled clutch slip on shifts developed via an electro-hydraulic actuator changing the clutch contact load
(Honda gave a paper on this a few years ago)
clutch slip duration about 10 -12 millisec straddling in time the actual dog shifting process
(I know of one poster who doesn't believe this slip system is used today)
force blending done electrically is by software onboard the 'control electronics' CE integrated with the MG not by the ECU
it cannot be complete
eg wheel locking on braking at high speed can force the MG to decelerate faster than its controlled response can decelerate it
so the generation force collapses (either by control or uncontrolled) - and the MG gives an ABS-like effect