Earth Talk Toyota Plugin Prius Electric Cars

27 Апр 2014 | Author: | Комментарии к записи Earth Talk Toyota Plugin Prius Electric Cars отключены
Toyota Prius PHV Electric Cars

Earth Talk: Toyota Plug-in Prius

EarthTalkTM

From the Editors of E/The Environmental Magazine

Dear EarthTalk: I understand that Toyota is planning to sell a plug-in Prius that will greatly improve the car’s already impressive fuel efficiency.  Will I be able to convert my older (2006) Prius to make it a plug-in hybrid vehicle? — Albert D. Rich, Kamuela, HI


Toyota is readying a limited run of a plug-in Prius, which can average 100 miles per gallon, for use in government and commercial fleets starting in 2009. Toyota will monitor how these cars, which will have high efficiency lithium ion batteries that haven’t been fully tested yet, will hold up under everyday use.

Essentially, a plug-in version of the Prius reverses the roles of the two motors under the hood. The regular Prius relies more on its gas engine, switching to (or combining) use of the electric motor in slow traffic, to maintain cruising speed, and when idling or backing up. The car doesn’t need to plug in because its battery stays charged by the gas motor and by the motion of the wheels and brakes.

The plug-in will primarily use its electric motor, allowing commuters to go to and from work every day fully on the electric charge, saving the gas engine for longer trips that exceed the distance the car can go on electricity alone.

Toyota has made no announcement yet as to when consumers will be able to buy a plug-in; that depends largely on the results of the field test of the fleet version. But owners of a current or past model don’t need to wait. Those with automotive mechanical skills can convert their Priuses to plug-ins themselves.

“The conversion is an easy DIY [do-it-yourself] project that you can do for about $4,000, if you choose to use sealed lead acid batteries,” says Houston-based Jim Philippi, who converted his Prius last year, using instructions he downloaded for free from the Electric Auto Association’s PriusPlus.org website. Philippi recommends that DIYers consult Google’s RechargeIT.org as well for useful background information.

For those less inclined to a DIY, several companies now sell readymade kits (some also have kits for converting Ford Escape Hybrid SUVs). Ontario-based Hymotion sells plug-in kits for Prius model years 2004-2008 for around $10,000 via contracted distributors/installers in San Francisco, Seattle and elsewhere. Other providers include Plug-In Conversions Corp. Plug-In Supply, EDrive Systems, Energy Control Systems Engineering Inc. and OEMtek.

All typically work with select garages that specialize.

One potential worry about conversions is whether or not Toyota will honor the warranty that came with the original vehicle. The California Cars Initiative (CCI), which has converted several hybrids to plug-ins for research and demonstration purposes (sorry, they’re not for sale), says the carmaker needs to clarify the matter, since hybrid cars typically have four or five separate warranties. There is legal precedent, CCI says, that modifications cannot completely void warranties—only the part(s) affected by a retrofit.

If you’re looking to convert, keep in mind that such a move is not about cost-savings, as it will take some time for fuel savings to justify the upfront cost of even a DIY. Most people interested in such a conversion are doing it for the sake of the environment, not their pocketbooks.

CONTACTS: PriusPlus, www.priusplus.org; Plug-In Conversions Corp. www.pluginconversions.com; Plug-In Supply, www.pluginsupply.com; EDrive Systems, www.edrivesystems.com; Energy Control Systems Engineering, www.energycs.com; OEMtek, www.oemtek.com; CCI, www.calcars.org.

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