2010 Prius EV mode Hack

[f1racer]

I'm wondering if anyone out there know anything about the 2010 Prius EV Mode hack. I'm making great use with the factory EV, but I'm limited to 25mph. I'd like to know how to bypass it and get a higher mph, like the pre-2010 that actually goes up to 34mph. Help..... anyone?


thx in advance

[dsviv]

Mine kicks out of EV at 13mph almost every time. Why?

[minime]

Originally Posted by dsviv

Mine kicks out of EV at 13mph almost every time. Why?

Mine kicks out of EV mode at all different speeds depending on the variables used in the software that determines when to terminate EV mode.

I can get up to 25mph in EV mode at times.

It would be great if someone that knew these variables would post them.

[efusco]

I suspect that'll take a serious firmware hack to accomplish that is likely far beyond your programming skills and available equipment to accomplish.

[f1racer]

Originally Posted by dsviv

Mine kicks out of EV at 13mph almost every time. Why?

I'm wondering if you're accelerating harder pass the "eco" bars into power. If I do that, it kicks out as well. I'm getting 25mph pretty consistantly.

[john1701a]

What is it with the "EV mode" obsession?

There is a lot of confusion when it comes to the electric-only driving.

STEALTH is still available at speeds up to 45 MPH.

The engine isn't moving (0 RPM if you have an aftermarket gauge available) and you can clearly see the resulting 100 MPG on the new meter by the speedo.
.

[wfolta]

Originally Posted by john1701a

What is it with the "EV mode" obsession?

There is a lot of confusion when it comes to the electric-only driving.

STEALTH is still available at speeds up to 45 MPH.

The engine isn't moving (0 RPM if you have an aftermarket gauge available) and you can clearly see the resulting 100 MPG on the new meter by the speedo.
.

People wanting to age their batteries prematurely? Or not understanding that you can be going 40 MPH on battery only, and thinking the EV button has to be pressed or it didn't happen?

Not to mention that an over-obsession with operating under battery power only will mess up your mileage. (For that matter, over-obsession with instantaneous MPG and the HDI displays will do the same thing. As I've taken a big-picture view of things, my mileage has gone up. The last tank is, so far, 10% better than the previous tank.)

[f1racer]

Originally Posted by john1701a

What is it with the "EV mode" obsession?

There is a lot of confusion when it comes to the electric-only driving.

STEALTH is still available at speeds up to 45 MPH.

The engine isn't moving (0 RPM if you have an aftermarket gauge available) and you can clearly see the resulting 100 MPG on the new meter by the speedo.
.

Simply put, EV brings us closer to why we buy these cars in the first place..... to be "GREEN". Why use gas when you don't have to.

Understand about the "Stealth", minimal pedal depression, w/electric motor assist. In traffic stop n go, it's nice to be able to go beyond 25mph. Ford Fusion is up to 47mph, with very very light pedal pressure.

[f1racer]

Originally Posted by wfolta

People wanting to age their batteries prematurely? Or not understanding that you can be going 40 MPH on battery only, and thinking the EV button has to be pressed or it didn't happen?

Not to mention that an over-obsession with operating under battery power only will mess up your mileage. (For that matter, over-obsession with instantaneous MPG and the HDI displays will do the same thing. As I've taken a big-picture view of things, my mileage has gone up. The last tank is, so far, 10% better than the previous tank.)

Can someone explain how using electric motor only can negatively impact gas mileage? I'm thinking the more I'm able to use electric only, the less gas I use.

[WillPwr]

Try using EV + Power Mode together.

I find that when I use EV + ECO mode, the accelleration is so slow I end up having to hit the gas so hard, that the ICE starts up.

With EV + Power mode, I can accellerate 'briskly' with electric only, and if I let up on the gas when hitting 24 MPH, it will sometimes go up to 26-28 MPH, still in EV mode.

Once the engine kicks in, I switch to Eco mode.

I'm totally new to the Prius, so thake that into consideration. I purchased my 2010 (IV, w/ NAV, white, dk leather) about 5 weeks ago. Commuting to work 10 miles each way, stop/go traffic, I'm getting about 53 MPG.

As for avoiding EV mode (as per a HyperMiler article that I read), it doesn't really work for me. I live about 1 mile from the freeway onramp, and I can sometimes get there in EV mode (engine warmup takes about 2 blocks). The freeway run charges up the battery, until I hit stop/go traffic, and then it's back to EV mode for a while.

I'm very happy with the Prius so far, and I'm leaving tomorrow for a 2500 mile trip from SoCal to Idaho & Montana. I'll share my results when I return.

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