How many miles of EV should I get?

When I disconnected my battery and reconnected it, it read 13.3 EV miles, IIRC.

But as Paradox said, there's really no point in "resetting" it because it will ultimately just display an estimate based on your past driving history.

Also keep in mind that if the climate control FAN is ON, your EV miles will drop somewhere around 12-15% to account for the additional electrical load. It doesnt mean you've "lost" those EV miles just by turning on your fan, its just an estimate to account for some additional drain on the battery.

 

Ken, Try this, maybe will help!

• What does the number of miles remaining number mean? Why does it keep dropping?
  It's purely an estimate based on your past driving history of how many miles you might be able to drive. It does NOT represent the capacity or charge level of the battery, only the battery graphic does. It can also be slow to reflect changes in driving behavior, and it is not currently known how much of a history (one week? One month?) it keeps. It is basically useless. I sometimes drive to a shelter by my house. The drive is 2.2 miles at 35 mph speeds and has drop in elevation of 175 feet. However, the estimated miles drop by only half a mile on this trip!
  It's dropping because the initial number of miles in the computer is around 13, which is fairly difficult to achieve in regular US driving. The number will eventually stabilize once it reaches what the car thinks is representative of your driving habits. In my case, this is 10.8 miles. Note that lower temperatures, increased use of climate control and lights, and low tire pressures will all decrease your range as well as your overall fuel economy.
  Relevant threads: Confused: Why does estimated EV miles keep dropping?, 12 miles EV after fully charged?, EV On/Off Charge Depletion Miles and Control Not Making Much Sense, After recharge how many miles be displayed?, EV Miles estimate after Full Charge LOW. How many miles at full charge?

Read more: http://priuschat.com/threads/the-one-and-only-prius-plug-in-faq.118566/#ixzz2JJrph2qo

 

you should get 12 miles like all the rest of us. welcome to priuschat. congrats on your new pip. pm me if you want to know the secret.

 

Secret, Secret, What Secret!!!!

 

no secret for you!

 

Do a full charge. Reset one of the trip odometers. Drive some typical route you drive. Stop when you reach 0.0 miles remaining and the gas engine comes on. Note the distance that you've gone on the trip odometer. This is "your" estimated range on EV. Note that if the ICE comes on during your trip you can pull over and stop the car and restart it. Depending on why the ICE came on it may need to go through an entire warm up cycle.

The number shown is an estimate based on history and the current state of the HVAC.

Mike

 

Something to keep in mind is that temperature has a major influence on what the EV estimate displays.

In the subzero temperatures, here, now, I'm seeing a value of 10.8 miles and getting roughly that from actual driving.

Back at the peak of summer, I was seeing around 13 and getting more than that. In fact, I got 17.5 miles on one especially nice morning commute.

If you'd like to learn more about how the system works and you have a smart-phone, consider purchase an bluetooth ODB2 reader. I just got one for less than $20. That along with the $5 app called Torque, you can see lots of information not revealed through the dashboard screens. It quickly gives you a strong appreciation for how well the system handles a complex array of driving parameters... and how it attempts to convey all that information in simple terms.

 

Bought my PIP on Dec. 30th and when I first got in the full charge mileage indicator had 13.1 miles of EV. Over the next two months, that full charge status slowly faded away to the point I'm at now after 5,400 miles, the full charge vaccilates between 8.7 and 9.0 miles. The dealership is scrambling to explain my lost miles, but the best they can come up with is that the car has "learned" my driving habits and responded accordingly. Ironically, my "driving habits" are to maximize every kw of juice for mileage by not using climate controls, cautiously accelerating while in EV mode, avoiding Power Mode at all costs, and doing a lot of coasting when I see a stoplight change to red ahead of me. i.e. no panic stops and a concerted effort to keep the wheels rolling to avoid a dead start when the light turns green. And for all these efforts, I lose full charge mileage. Maybe I'd better become much more careless an EV driver and see what that does. Oh, and the Toyota service bulletin they sent me refers to the "SOC (State of Charge) is calculated by the PCM (Power Control Module depending on factors such as climate control, et al. I don't think it justifies eroding full charge mileage.

Add to all this the fact that the dealership is also claiming I can access the "Charging Station Map" easily through my dash console. Remembering that what I have is the standard Plug-In and not the Advanced, they called me today saying they couldn't do it on one of their cars in the lot either. They'll work on it tomorrow and get back to me. Not to worry, the entire Eastern Shore of Maryland and Delaware only has four charging stations, three are at dealerships and one is at a college campus in Dover, the average distance between those stations is about 75 miles, so what's the point?

 

that's the question, isn't it? welcome to priuschat!

 

Indeed.

 

How many EV miles are actually driven verses the estimate value?

That is the point of a plug-in hybrid. Exclusively using electricity for acceleration is not efficient. You're far better off overall allowing the engine to run during times of high demand.

 

Yes, I want to know the secret, my prius EV dropped to 9.6. I only have 4500 miles.
thank you
Zackary

 

1.

That is an old 2004 article for a gasoline engine. You are getting 66% of your when new estimated distance for EV mode. Batteries are even more susceptible to cold than gasoline engines.
Why is the fuel economy of an automobile worse in the winter than in the summer?: Scientific American
2. Your EPA sticker (unfortunately, in tiny print) says "All Electric Range = 6 miles". You've already exceed EPA estimates in the cold of winter.
Toyota Prius Plug-in EPA label.png - Wikipedia, the free encyclopedia
3. You're doing all the right things to maximize fuel economy. But if you're doing all these things and then hop on the freeway driving 75 mph . 9 miles EV is all you're going to get. I'm not saying you are doing that but there's more to maximizing fuel economy than just driving slowly. There's still a lot of technique left to learn. I'm sure you can find a lot of more information in this forum.
4. Bisco's secret is patience. When the weather warms up, your mpg will rise, both gas and electric. FWIW, I went from 13.1 new in October to a low of 10.9 and now coming back up to 12.5. I live in temperate CA so my mpg and distance is not going to vary as much as Maryland.
5. Don't forget to thank me in June when you are at 13.1 EV miles.