[OCPacifica]

Not sure if this is an appropriate thread to post here as the popo might be watching but I remember reading that all-electric can go up to 75mph but I think it can go higher.

I got as high as 78mph on the freeway but then didn't want to push it because I was passing everyone.

I'm assuming over 80mph will kick the gas engine up? Haven't gone a long trip to test (still scared of the "hold issues").

 

[Dpacifica]

I know in our Plug in Prius, it is supposed to cut off at 62, but if you are lightly accelerating it will usually cut off at 65. The PacHy maybe the same in that it will give you a few extra MPH if you are gently accelerating; however, it doesn't sound like you were gently accelerating?


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[csnyder]

My top EV speed has also been around 78 mph. Downhill or with a tailwind, I'm guessing that it could go higher. It seems to totally be dependent on the amount of power required to move the vehicle, rather than any preset speed cutoff.

 

[OCPacifica]

I wasn't flooring it.

Was on a freeway headed home and gradually accelerating but once you go over 70, it's more noticeable you are speeding here in SoCal.

At 78, the output power wasn't very high, so I think it can go over 80 before the ICE joins the party.

 

[Dpacifica]

Interesting to know, but I will probably never come into a situation where I am gradually accelerating over 75 mph. It is more likely I will be accelerating fast to pass and would kick on the engine even below 75


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[OttawaSalesGuy]

100kmh = 62mph is the cutoff for the electric, it takes a second or so switch over to gas you might get slightly higher speeds before it switches over completely. straight out of the book, whether this is real world or not is a different story.

 

[Dpacifica]

100kmh = 62mph is the cutoff for the electric, it takes a second or so switch over to gas you might get slightly higher speeds before it switches over completely. straight out of the book, whether this is real world or not is a different story.

Where was this found in the manual? I have previously heard ~75 and have experienced exactly that in real world.


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[OttawaSalesGuy]

We had a sales seminar before they were released so I'm just regurgitating what I read/heard. It could be different in real world application, but I think it's pretty close.


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[cue003]

We had a sales seminar before they were released so I'm just regurgitating what I read/heard. It could be different in real world application, but I think it's pretty close.


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According to FCA documentation it is 75 MPH

http://media.fcanorthamerica.com/pdf.do?id=17996

 

[OCPacifica]

I'll test it on a racetrack today.

I'm kidding. 75 is what I saw mentioned somewhere but it can go higher. Just like 33 is supposed to be the electric range but I often see 38 and 40 as the estimate when I'm 100% charged.

 

[icydog]

I normally cruise at 78-81mph and the gas engine almost never kicks on.

 

[Iain McClatchie]

Top speed in EV mode is limited by the maximum RPM of Motor A (the smaller of the two electric motors). I don't know what that maximum RPM is, but at 80 MPH, it's going about 10,611 RPM.

I have a spreadsheet that models the hybrid transmission here: https://docs.google.com/spreadsheets/d/1rs0j3lpcNZhpEjLt8JhyLK-KTyEVE7k2nKuY492yOW4/edit?usp=sharing The gear teeth counts come from a teardown of the Pacifica transmission, and the torque and horsepower numbers of the various motors come from Ward's articles.

Note that the max EV acceleration curve assumes the battery can deliver up to 148 kW. I don't believe it will actually do that, those numbers are just to get an idea of what the electric drivetrain will deliver. The thing I found interesting was that if the battery was willing to deliver 148 kW, the vehicle would actually be a bit quicker zero to 60 MPH with the internal combustion engine OFF. It's counterintuitive, but it comes from the fact that the sprag can deliver more torque (albeit at zero rpm) than the internal combustion engine can. Once you get past 60 MPH, Motor A is power limited and you are quicker with the internal combustion engine on.

 

[SuperGrover]

I wonder if we will see performance tuning for the hybrid at some point. I hope so and it does seem like there is room for software tweaking.

I have tried to check the hybrid electric status display while driving and the highest numbers we seem to see for power output from battery to the motors seems to be just over 90 kWh. I wish there were some feedback to the driver to be able to make use of the maximum EV power output without the ICE kicking in, unless you wanted it to. It seems like it is a bit of guesswork trying to observe if you are requesting over 50% power output and how quickly this occurred which then triggers the ICE to come on. Given the lack of a pure EV mode, it would be nice to have a little something more definitive for feedback to the driver that if they depressed the pedal slightly more it would trigger the ICE. I hate it when I just hit slightly over that point and then I happen to be slowing down again anyway and the engine is running for no real reason.

 

[richtex]

has anyone noticed a buzzing or whining sound when in electric only and travelling at highway speeds? could this be coming from the electric motors or the e-flite transmission ?