EV button and its effect on the HV battery

I don't think there is no real data with all the back and forth in this thread. It's looking more like back and forth debates rather than being helpful after getting Belittled by a "Narcissist" in this thread.

Posted via the PriusChat mobile app.

 

you don't think there is no real data? you may be right, but i have not seen any. in the absence of proof, i generally go with experienced opinions.

 

i meant battery longevity. i thing mpg's are a given, and easy to prove out.

 

I don't understand the purpose if the 2nd gen doesn't even have the button. I would love to have one, but I don't, so whats the use?

 

Don't really need the button as you can do it with your foot. Just Glide on electric with the yellow arrows.

Posted via the PriusChat mobile app.

 

i routinely move my wife's hycam in and out of the garage with the ev button. it's nice not having the engine fire.

 

How difficult is it to install?

 

not hard. you pull a connector from behind the glovebox, and instll it in a couple of the pins. half hour at most.

 

Wow. Well I would like to have that. Alot of times the engine cycles on when completely unnecessary.

 

Are you aware of allowing your engine to reach "SC4" status (or something to that effect)? This is usually achieved on the Gen 2, when the engine has warmed up sufficiently; if you come to a halt (say in congested traffic), the engine will continue to run while your foot is on the brake pedal - keep it there till the ICE shuts off by itself.

You will now be in SC4 (someone correct me if I'm using the wrong expression - I'm no genius ).

Now the Prius should be running at its most economical, and even when the ICE is running, it should be at its most economical.

A lot of Prius 2 owners appear to be unaware of this. I suspect, if the vehicle doesn't go to SC4, then the engine will keep kicking in when it doesn't really need to


iPhone ?

 

i will say, i never felt the aftermarket switch worked as well on my 2004 prius as the switch in my wife's 2013 hycam.
i don't know if the parameters are different, but i feel it's much easier to get hers into ev mode to move the car in and out of the garage than it was the prius. a lot of times, i would pull the switch on the prius and get the two beeps meaning ev mode was not available.

 

I agree and yet disagree.

Of course when you have a system where a battery is charged by a gasoline burning engine then you can trace the creation of any and all "momentum" created back ultimately to the engine. Even if coupled with an energy storing and momentum aiding HV battery.

Hence the statement:

But I would argue The Prius and HSD is a pretty clever system. Yes, at the heart of it's energy creation there is a Atkinson Cycled combustion engine, but the vehicle does gain energy from some pretty ingenious avenues.

The regenerative brakes, take energy that on any other vehicle would simply be wasted, and returns it to the HV battery. That usually wasted energy comes from momentum originally created by the entire system, including the engine, but not always exclusive to the engine.

Think Braking down a hill, and the reason Toyota provides "B" on selection knob. The Prius does capture energy, situationally. If the momentum created is being created by gravity, then it can "capture" energy arguably NOT being created by the engine firing, so much as the car traveling downhill from the pull of gravity. -Thank You Regenerative Brakes.

One can argue it's a bit of a momentum and energy capture "shell game" as you have to burn gasoline to reach the top of hills, but still...it is energy being created based on the situation not exclusively the engine.

Once you pass 40 years old, the term going down hill takes on a lot of negative connotations. Not so much when you are talking about a Prius and HSD.

 

the correct statement would be that 'the prius wastes less energy than most cars'. all the energy comes from gasoline.

 

My contention is however The Prius is ALSO designed to "capture" energy.
And there IS a situation...coasting down hill, where that energy captured is being created primarily by momentum and gravity NOT burning gasoline.

You can argue that what comes down...must also go up...so it "shell games" back to firing pistons and fuel consumption. But to deny the energy capturing capabilities of the regenerative brake system is to not be looking at the capabilities of the entire system and the reality of downhill coasting-gravity and momentum.

We'd all get fantastic gas mileage if we could just drive downhill everywhere....all the time....

I propose the building of countless hills and solar powered automobile elevators.

My campaign slogan?
"When I get to the bottom, I go back to the top of the slide, where I stop and I turn and I go for a ride, till I get to the bottom and I see you again".

I think you can see why I'm not a politician. Nor an engineer.

 

i agree that you are capturing energy, and storing it in the battery, which would otherwise be wasted. and it burns me when i'm going downhill or braking in a non hybrid.
but the only time you can do that, is after you have burned gasoline to get up that hill.

 

Yes. And I said exactly that...

But my point is aimed specifically at the statement that ALL energy in a Prius is created by burning gasoline.

Created...arguably yes...Captured? No.
albeit a very specific scenario...some energy is captured while coasting down hill, and that energy is primarily created by the force of gravity not the burning of fossil fuel.