Plugin Toyota Prius Setting The Record Straight! Inside EVs

27 Апр 2014 | Author: | Комментарии к записи Plugin Toyota Prius Setting The Record Straight! Inside EVs отключены
Toyota Prius PHV Electric Cars

Plug-in Toyota Prius, The Record Straight!

Just How Far The Prius PHV Actually Go On Electricity? That Depends

There to be a lot of confusion about the Plug-in and the amount of EV range that it  A common misconception is that it has 6 miles of EV range.  The sticker of a PiP (Plug in Prius) 11 miles of gas+electric but then is a footnote that says All Range = 6 Miles

Toyota PHV Sticker

Now I ll be the first to admit the PiP has the plug-in offering on the market. we should at least get the facts  The PiP definitely has more 6 miles AER ( All Electric Range ) and simple math can prove it.

 We know the PiP has a 4.4Kwh battery but we also know, like all cars, that not all of that is usable.  It turns out that 3.4 Kwh is usable.

So if you drive an EV you are probably with the measurement of Miles per which is analogous to Miles per with a gasoline car.  In a car if you know what MPG the car gets and you how much fuel is in the tank, you can easily calculate the range by multiplication.  The same is or less true for an EV.

Good or Bad, The Toyota PHV s Top Speed Of 62 mph Can Be Problematic For Getting A Read On The Car s Electric Driving

So lets take 3.5 Miles per which is a very conservative on the low-end.  If you multiply by 3.4 Kwh available, you get miles.  If you are a good driver and can 4 Miles per Kwh then the range up to 13.6 miles.

If math t satisfy you, how about anecdotal evidence?  Just go to and you ll find any number of users saying they ve to squeak out 20+ miles on a single

So why does the EPA rate it at 6 miles?

Ok, so you must be wondering why the Ford products are rated at the full 21  Well, there are some differences in the PiP and other plug-in  There are two main issues at

Top EV speed The PiP has a top EV speed of 62 miles per .  You can still go faster that using battery but the car requires the engine to be running at over 62.  The Energi can do 85 mph in EV mode with the engine  The Chevy Volt can go 100 per hour without the engine

Toyota Prius PHV Electric Cars

Acceleration Power The PiP will turn the engine on if the driver a certain amount of acceleration by on the pedal.  There is no option to the engine.  With the Energi there is an EV-Now mode will totally disable the so it will not start until the runs out.

 The Volt by default won t the engine until the battery out.

Now, the EPA test running the car at certain pre-defined and acceleration events.  You can see in the chart below that tests can take the car up to 80 mph for short  As such, the PiP must start the during the test, possibly times.

All this, despite the it may have plenty of battery left.

Driving Schedule

So how can Toyota fix the problem?  Part of it just be a software fix Give the the ability to lockout the engine.  As for the top EV speed, that may require changes to the drive train. problem with the type of that Toyota and Ford are is that with the engine the smaller motor-generator can be revved fast.

 The original Prius had a slower EV limit, around 42 mph . fixed that in the 3rd generation by adding some extra to reduce the speed of the generator.  I assume Ford did something in the Energi products to get the EV speed up to 85.

should be introducing a totally Forth Generation Prius in or 2016.  It is likely they solve this issue in the Prius and I m expecting them to the range as well.  I m holding out that the next gen PiP will an EPA label showing at least 20 AER.

Toyota Prius PHV Electric Cars

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