Hi folks,

I look forward to seeing more technical details about the GM dual-mode hybrid. There are some aspects that bother me from what little is known. For example, there appears to be a hydro-mechanical torque converter and those are often pretty lossy. Also, it looks like there are coolant tubing, another signature of energy loss. BUT we really need to see the product and test it.

I do have an engineering rule of thumb:
EV power / (ICE power + EV power) = quality of hybrid

So for my NHW11:
33 kW / ( 52 kW + 33 kW) = 38.8%

For the current NHW20:
50 kW / (57 kW + 50 kW) = 46.7%

For a recent GM hybrid:
4 kW / (126 kW + 4 kW) = 3.0%

I'm looking forward to seeing a significant improvement in the GM hybrid offerings.

Bob Wilson

Operation Iraqi Oil Freedom:

Automatic, stock, project car.

My other 1500 cc car:

Automatic, stock, backup car.
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