Dynoed my gen4 prius

[Yippeekyaa]

Entered a competitive event and all cars entered were dynoed at a big start party. Did 3 pulls on the dyno. First was in normal mode and it produced 102.83 hp and 84.98 torque. Second and third pulls were in power mode and some interesting things happened. Second pull yielded 92.55hp and 136.29 torque. Third was 87.04hp and 109.26 torque. No time was dedicated to allowing the battery to charge back up between pulls. The dyno graph is the most odd dyno graph ive ever seen.
https://postimg.cc/8Jk0rMMT

[alexshock]

In your profile it is "'11 Toyota Prius " - it is Gen3... No?

[oil pan 4]

You had me at "dynoed my prius".
What are the runs that look like you hit the nitrous?

[Yippeekyaa]

Originally Posted by alexshock

In your profile it is "'11 Toyota Prius " - it is Gen3... No?

I have two prius. A gen3 and a gen4. This was the 2017 gen4.

[Yippeekyaa]

Originally Posted by oil pan 4

You had me at "dynoed my prius".
What are the runs that look like you hit the nitrous?

That is the electric motors kicking in.

[jakobnev]

You know you're an ecomodder when...

[mort]

Fascinating! The electric gives you about 40 hp boost almost all at about 5500 rpm.
The legend claims that the maximum power for orange is 102, and that the max hp occurs at 9.1 k. That rpm seems pretty unlikely for a Prius. Also the orange hp graph looks like it is declining when it falls off the graph at 6.5 k so to get back to 102 the torque must jump up again. I'd like to see that and have it explained - an extra auxiliary electric motor kicking in?
The brown graph, hp peak, 87 hp at 9.3 k, is still climbing at the edge of the graph so it can get there eventually. But what do you have to do to get the Prius engine to rev that high?
Or is the dyno computing the engine rpm based on tire rpm and gear ratio? Is the dyno computing engine torque based on gear ratio? Does the dyno know the gear ratio?
-mort

[kurzer]

thats pretty intersting. my guess ist:

1. the torgue in "Eco" is reduced.
2. the lost in power and torque over the 3 runs is from sinking SOC.
3. In "Power" with normal SOC we´d seen some more Max Torque.
4. the revs, drawn from the OBD are one of the two e-machines. i guess MG1, since MG2 is determined by vehicle speed.