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Old 02-03-2017, 02:49 PM   #1 (permalink)
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Nissan releases Note e-Power series hybrid in Japan

Nissan Note e-Power Hits Japanese Streets

Quote:
Japanese car buyers now have a new kind of hybrid model to choose from.

The Nissan Note e-Power, for now available only in Japan, is a series hybrid that uses its 1.2-liter 3-cylinder engine as a generator to charge the 1.5-kWh battery while an electric motor drives the front wheels.

As such, itís a twist from hybrids such as from rival Toyota that split mechanical propulsion duties between the engine and motor, and Nissan hopes it will serve as a ďbridgeĒ for customers as they move from gas-powered vehicles to all-electric vehicles.


Nissan can also reduce costs by selling the e-Power, according to Reuters, since it shares some parts with the Leaf.

Nissanís Leaf is the most popular EV globally, but sales havenít quite met expectations. The hybrid market is stronger in Japan than in other places.

The e-Power isnít yet on the menu for American or European buyers, because itís being built to suit Japanese driving habits and environments, which are more urban-centric.


Nissanís electrified-vehicle strategy initially jumped past hybrids straight into full EVs, but that meant the brand ceded some market share, particularly to rival Toyota.

ďWe canít avoid the fact that EVs remain expensive compared with conventional gasoline vehicles, while thereís also an ongoing assumption that EVs arenít suited to traveling long ranges,Ē Hideyuki Sakamoto, a Nissan executive vice president, told Reuters.

Similar to the Chevrolet Volt, the e-Power system uses an electric motor to drive the wheels and a gas engine to provide charge for the electric motor. The e-Powerís electric motor is 40 kW and makes 109 horsepower. The battery pack is 1.5 kWh. Nissan claims fuel economy of up to 80 mpg.

Nissan also has plans to develop cheap, small EVs for China and may also look to use a plug-in hybrid system developed by Mitsubishi. A fuel-cell vehicle is also under development.

This configuration is very similar to Honda's Accord Hybrid, which also uses a gasoline engine > generator > battery > electric motor in series.

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Old 02-03-2017, 04:07 PM   #2 (permalink)
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We will see if nissans take on a series hybrid ends up being a more efficient series hybrid than before.
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Old 02-04-2017, 07:36 AM   #3 (permalink)
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Something is missing in that description of the drivetrain. A 1.5kWh battery seems to be too small to be the sole power to move the car with a 40kW motor. That will be quite a high discharge rate leading to very short battery life like the R/C batteries get. The Honda Accord Hybrid uses 6.7kWh and the engine clutches in to the wheels at highway speed.
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Old 02-04-2017, 08:00 AM   #4 (permalink)
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Pretty sure the Accord Hybrid (non plug-in) uses a 1.3kWh lithium. I believe the battery is only there to provide power in addition to the peak the engine can produce - e.g. if you're drawing 100kW, the engine might be making 80 and the battery giving up the extra 20 until you're done accelerating.
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Old 02-04-2017, 09:13 AM   #5 (permalink)
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You are right.
.
1.3 kWh Li-Ion battery
Eight-year/100,000-mile or ten-year/150,000 mile Li-Ion battery limited warranty, depending on the state of purchase/registration.
.
2017 Honda Accord Hybrid Press Kit - Powertrain - Honda News
.
I guess the engine can start up if you want anything more than the instantaneous power that the battery can give.

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