Honda Power Unit Hardware & Software

[muzzytt]

When you build an engine you balance the rotating assembly.

So how does such bad vibrations exist?

I mean it could be the gearbox or the side mounted mgu but to not find this to this day is astonishing especially for a company like Honda

[Holm86]

When you build an engine you balance the rotating assembly.

So how does such bad vibrations exist?

I mean it could be the gearbox or the side mounted mgu but to not find this to this day is astonishing especially for a company like Honda

I also don't understand, the engine architecture is the exact same as last time Honda was in F1, just with less power and no MGU-H. How can they get it so wrong

[FNTC]

The MGU-K is 3x the size this year, and also sits next to the battery. Might be part of the issue.

[Farnborough]

There's enormous shift in regeneration passing through the crankshaft now, in comparison to previous generation of PU.

Also has to be used far more in each lap to very high degree than before.

Pistons driving a crankshaft will have a different effect to that of driving a "remote" MGU-K at front end of crankshaft by input from gearbox at the other end.
Significantly different demands to last rules.

The MGU-K will have it's own typical wave form input to crankshaft assembly when in maximum ouput too. Its more complicated than superficial views indicate, not just slapping on a bigger generation hardware to last years PU hardware.

[Farnborough]

With LS statement "like being electrocuted in a chair " with UK power supply @ 50Hz, then that would be wave form harmonic from MGU-K (given it's rotation at peak load or near to it) and possibly causing resonance/echo in the crankshaft

Very much lower you'd get "whitefinger" from something like a British twin motorcycle in 360 degree crank arrangement.

Yes this is partly in jest, but the chassis doesn't effectively MAKE vibration as such ..... switch off the PU and no vibration is present.

Interesting that MV has commented on topic about their engine, and indicated that others are giving comments (not to press) too.

You can hear it (debated at length on SF26 thread) either high level cacophony during deceleration and regeneration phase, that which people thought, erroneously, a drone.

The "screaming" under max regeneration is only the part of vibration spectrum that becomes audible, to us humans, as is moves into range of our acoustic collection devices (ears) but will be there at "subsonic" levels and available for distribution within vehicle structure.