Stock Prius Electric Motor Outputs over 403 ft/lbs of torque after gear reduction

whoa, that is way above my pay grade!

 

If the engine locks up with no cluth you destroy the transaxle ($4000)
If the transaxle locks up with no clutch you destroy the engine ($2000)

Short of such disasters, the clutch never slips. Note that the clutch is ONLY between the engine and the transaxle, it is not involved in the 403 lbs-ft of MG/2 to the tires.

(my v has a different final drive ratio, so it has even more torque, at a cost to top speed)

 

This is not true. MG/2 is always powering the wheels. (I am ignoring heretical mode) M/G1 may also help power the wheels, or it may be used to make electricity to help MG/2 get power. The engine can also help power the wheels, or it can spin MG/1 to make electricity to help power MG/2. (excess electricity recharges the battery)

 

Someone is severely confused!

 

I am not sure where he got the incorrect information. Mr.Kelly is clear that the engine and MG/1 can only help MG/2.

The sentence at 10:00 make this clear. It always has MG/2 as the primary source of Power

 

Mr Kelly says that 62mph is maximum speed in electric mode “due to electricity required to do so”. The gas motor must contribute to the rotation of MG1 to make electricity.

At 62 mph, MG1 is only spinning about 7000rpm, it can spin 13000 in the Gen 3, according to the linked video.

 

I think I see the source of the confusion here. As you can see if you play around with this simulator of the Prius transmission (note: this is for a Gen 2; Gen 3 is fundamentally the same, but the parameters of operation for MG1 are wider), MG2 spins whenever the car is moving, with a linear relationship between MG2 speed and road speed. But, it is entirely possible that it contributes no force above 62 mph.

Also, the scenario presented by the OP won't happen. The Ford GT has peak torque of 550 lb-ft at 5900 rpm; launched at that RPM in first gear, it's putting out 1,868 lb-ft to the final drive to get those ridiculously fast 0-60 times.

 

World's first 2010 Prius Dyno | PriusChat

OK, what we see here is that when the battery is fully charged, HP just keeps going up with speed.
Then as the battery loses charge, the HP tapers off with speed.

So MG/2 is able to power the Prius to 110 MPH, if there is electricity to spare.

Toyota rates the engine at 98 HP, so MG/2 is still making 15 HP at 75 MPH.

 

I have two different interstate on ramps I use a lot, both have a significant upgrade, and are very near a trucker Port of Entry. Every time I merge, I envision a trucker (and maybe other drivers) thinking," oh great, a Prius, this guy is going to get in my way." I delight in making that not happen, in general giving them something to think about, "wow, didn't know a Prius could move out like that!" Yeah it impacts my tank MPG a bit, but I feel I owe it to other Prius drivers not to perpetuate the Prius driver stereotype I mean, we do have one, right?! I have found putting the pedal firmly TO THE FLOOR offers up very reasonable acceleration, at least when lightly loaded.

When I am forced to drive my 1 ton Silverado, hauling something I can't haul with the Prius and a small trailer, I drive it exactly like most think a typical Prius driver drives, like a little old lady. A futile effort to get more then 15 MPG. It is always a joy to park the flat bed and get back in the Prius, where a little hot rodding doesn't really seem to effect things much, as I routinely log high 50's to low 60's MPG per tank.

 

It makes me wonder, I too drive my Prius in a manner as to not continue the “Prius Driver” stereotype and get right around 50 mpg. How many more mpg would I get if I drove like a “Prius Driver”. LoL

 

Yes.

The Prius v has a shorter final drive (top speed of 103 vs 115 MPH for the liftback) for improved acceleration. With deep pockets, you could drop in a v transaxle for better acceleration at a cost in MPG and top speed.

The Dyno runs I posted above show that battery plus M/G1 do fine on the first run, but as the battery depletes the Top end HP decreases. (by the third run there is a drop by 35 MPH)