Of course Gil, Sharing is what forums are all about
I was thinking about the weight's of all this stuff as, at the end of the day, what you need to push you down the road (and stop you moving) is directly proportional to that number.
Most Prevost's seem to have 250 gallon diesel tanks right? A gallon of diesel weighs 6.943lbs (lets round that up to 7 pounds and ignore the weight of the gas tank it's self for this fuzzy maths calculation). So a tank of go juice weights you down 1750lbs. And that falls over the trip as fuel is burned.
The engine it's self, a Series 60 is about 2800lbs, and an 8V92 is 3200lbs. So we're looking at an average of 3000 between the two most common power-plants in Prevosts (I'm not counting the D13, but I think it's in the same range).
With the fuel and engine it's around 4950lbs, lets just say 5000lbs. And then you've got the Allison Trans weight dry/wet... Average it at another 1000lbs on top:
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Or around 6000lbs for a traditional diesel power plant and it's go juice.
If the battery bank mentioned in the PDF weighs in 3000lbs, This leaves 3000lbs for DC motor weights and gearing. But DC motors don't weight anywhere near that range and are much much much lighter. Just for examples sake, and because so much of this data is readily available; I want to say the dead in the middle of the range single motor P-series 85kWh Model S's drive-train - which includes the single DC motor, electrical converter, control module(s) and the drive-line differential gearing box all together - weighs in at 150lbs. And that really tiny power plant nets you 443 lb⋅ft / 601 N⋅m of torque & 470 hp / 350 kW of HP. I think two of those in series would be better for a bus, or around 880 lb⋅ft / 1200 N⋅m of torque & 940 hp / 700 kW of HP in exchange for 300lbs of weight. That seems pretty decent as a start right?
https://www.quora.com/What-percentag...erms-of-volume
https://en.wikipedia.org/wiki/Tesla_...Specifications
Andy Gadget Guru: Thank you for adding in the links and info / ideas you did. I think you might be onto something with the idea that soon "this industry could be undergoing a revolution".
And on a more personal level - the BIG THING that keeps one of my own (Clearwater) eyes on this topic is the following: I look to this type of conversion as a means to reduce mechanical complexity, reduce running costs and reduce service costs for big rig ownership and operation. THAT, is the big deal for me personally