Some (deep) notes on the Gen 5 transaxles

Okay, right, I am seeing 6000 rpm shown as the rpm for the peak 112 kW engine power in various places.

Which does suggest that it is permitted to go up to that.

But it really won't be able to until high speed, unless we have MG1 permitted higher than 10000rpm.

Here's another acceleration video from a European car, which acts far more like I'd expect than the US one above - the engine pitch just keeps rising with speed until it flattens out at about 130km/h / 80mph. The US car seemed to shift up at 70mph.

If that's 6000rpm at 80mph, that would have MG1 at 12000rpm.

The US car seemed to first plateau at about 54mph, which could have been 5200rpm on the engine with MG1 at 12000rpm. 5200rpm is where the torque starts to drop off - maybe it's deciding to hold there for some time for efficiency reasons or something?

 

Actually, later in the US video there's another launch which has a continuous rpm rise, more like the European video.

Maybe the "gear change" launch was an SoC effect? Maybe at higher SoC it was able to draw more battery power, and given that was not able to make use of full engine power until higher speed. (What with the various complications of PSD power flows and MG2 power limits).

Would certainly make sense that it would want to not push above the max torque region for the engine unless it really needed extra power from the engine.

From the specs:

4400rpm : 88 kW / 119 hp : 190 Nm
5200rpm : 103 kw / 141 hp : 190 Nm
6000rpm : 112 kw / 152 hp : 178 Nm