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« Forbes 2007 Energy Outlook | Main | In Favor of the Plug-in Hybrid Diesel »

October 10, 2006


Jesse Jenkins

Great update. Thanks Jim.


"The small ICE allows for charging of the vehicle fairly efficiently, in case the batteries are discharged unexpectedly, assuming the batteries are normally charged by connecting them to the grid. This would reduce the fear of being stranded, while not having the complexity and cost of a plug-in hybrid."

If it's charged from the grid, isn't it a plug-in hybrid??

Jesse Jenkins

Actually, the AutoWeek article was talking about the Concept-CT MIEV when it mentioned the 1.1 liter gasoline gen-set, not the production EV that will eventually be released (and about which little details are known).

The Concept-CT is in fact a series/parallel hybrid, not a plug-in or EV. The small gasoline gen-set recharges the batteries which provide the majority of the traction power for the vehicle (the series part). At constant speed, however, the Concept-CT can add engine-powered rear-wheel drive for extra driveability (the parallel-hybrid aspect).

The MIEV architecture can be applied to any electric-drivetrain vehicle platform, including electric-dominant hybrids and plug-in hybrids, electric vehicles and fuel cell vehicles. Mitsubishi has tested the MIEV architecture in four vehicles - first in an all-electric two-wheel drive Colt, then in an electric all-wheel drive Lancer testbed, in the series/parallel hybrid Concept-CT, and most recently in an all-electric compact mono-box concept car, the Concept-EZ MIEV.

It sounds like the upcoming production MIEV will be either a full electric vehicle, or an elecric-dominant plug-in hybrid featuring a small gen-set as a range extender, but details have yet to be released. Stay tuned, here, at Green Car Congress, and at my blog. There's more on the MIEV and it's developments here.

Harvey D.

An electric-dominant vehicle may or may not be a plug-in. It depends on the size of the on-board battery pack or ESD. Locomotives are electric-dominant hybrids but a long way from being PHEVs.

One good thing about electric-dominant vehicles is that they could easily become PHEVs by adding high perfomance quick charge batteries whenever available. At the current development rate, that should be soon or by 2010-2012.

kent beuchert

The actual car to be imported has been reported as not possesing in-wheel electric motors, they being too expensive a development for a car of this niche status. The idea of motor per wheel is an attractive one, since it makes not only AWD posible, but also makes traction control much more effective and, of course, provides emergency limp home capability in the event of motor failure.
The transmission would be lost, but at what cost for power efficiency? The little weight lost by avoiding the tiny trans in this car would be more than made up by the fact that
there are three more motors than are actually needed. One also wonders about the durability of an electric motor that has to take the punishment that a wheel must endure when traversing bumps and potholes. One needs to see the economics and motor reliability stats in order to decide on
the appropriate powertrain configuration.

Frederick Kuan

Taking a leaf from Trevor Bayliss, what about a pedalo/rowing machine generator in the passenger footwell? Should be good for a mile or two, which is probably all you need to limp to some power socket. The pedals are normally stowed away under the glovebox, probably like hoover accessories.
For the lazy people, the RAC should include a couple of call-outs a year for running out of petrol or electricity.

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Batteries/Hybrid Vehicles