Nis­san in­tro­duces new elec­tric-mo­tor driv­e­train: e-POWER

Kuwait Times - - BUSINESS -

Nis­san Mo­tor Co Ltd, yes­ter­day in­tro­duced its new drive sys­tem called ePOWER to cus­tomers. It marks the first time that e-POWER tech­nol­ogy is avail­able for con­sumers, mark­ing a sig­nif­i­cant mile­stone in the elec­tri­fi­ca­tion strat­egy un­der Nis­san In­tel­li­gent Mo­bil­ity.

e-POWER bor­rows from the EV tech­nol­ogy per­fected in the Nis­san LEAF, the best­selling pure elec­tric car in his­tory, with more than 250,000 units sold. Un­like the LEAF, ePOWER adds a small gaso­line en­gine to charge the high-out­put bat­tery when nec­es­sary, elim­i­nat­ing the need for an ex­ter­nal charger while of­fer­ing the same high-out­put.

The tech­nol­ogy of e-POWER

The e-POWER sys­tem fea­tures full elec­tric-mo­tor drive, mean­ing that the wheels are com­pletely driven by the elec­tric mo­tor. The power from a high-out­put bat­tery is de­liv­ered to the e-POWER’s com­pact pow­er­train com­prised of a gaso­line en­gine, power gen­er­a­tor, in­verter, and a mo­tor. In con­ven­tional hy­brid sys­tems, a

low-out­put elec­tric mo­tor is mated to a gaso­line en­gine to drive the wheels when the bat­tery is low (or when trav­el­ing at high speeds). How­ever, in the e-POWER sys­tem, the gaso­line en­gine is not con­nected to the wheels; it sim­ply charges the bat­tery. And un­like a full EV, the power source orig­i­nates from the en­gine and not just the bat­tery.

This sys­tem struc­ture gen­er­ally re­quires a big­ger mo­tor and bat­tery be­cause the mo­tor is the only di­rect source to drive wheels. This has made it hard for the au­to­mo­tive in­dus­try to mount the sys­tem in com­pact cars. How­ever, Nis­san has cracked the code and learned how to min­i­mize and re­duce weight, de­velop more re­spon­sive mo­tor con­trol meth­ods and op­ti­mize en­ergy man­age­ment. As a re­sult, e-POWER uses a smaller bat­tery than the LEAF, but de­liv­ers the same driv­ing ex­pe­ri­ence as a full EV.

e-POWER de­liv­ers mas­sive torque al­most in­stantly, which en­hances drive re­sponse and re­sults in smooth ac­cel­er­a­tion. Also, the sys­tem op­er­ates very qui­etly, much like a full EV. Be­cause e-POWER re­lies on the en­gine much less fre­quently, its fuel ef­fi­ciency is com­pa­ra­ble to that of lead­ing con­ven­tional hy­brids, es­pe­cially dur­ing around-thetown com­mutes. The e-POWER sys­tem al­lows you to en­joy all the ben­e­fits of an EV with­out hav­ing to worry about charg­ing the bat­tery.

Nis­san is ac­tively pur­su­ing a zero-emis­sion, zero-fa­tal­ity world for driv­ing through its EV pro­gram and au­ton­o­mous drive tech­nol­ogy. To make this vi­sion a re­al­ity, Nis­san is de­vel­op­ing “Nis­san In­tel­li­gent Mo­bil­ity,” which an­chors crit­i­cal com­pany de­ci­sions around how cars are pow­ered, how cars are driven, and how cars in­te­grate into so­ci­ety, all while stay­ing fo­cused on cre­at­ing more en­joy­able driv­ing experiences. e-POWER is an­other step to­wards achiev­ing our ze­roe­mis­sion vi­sion through a new and more ef­fi­cient elec­tric pow­er­train.

In 2006, Nis­san ex­pe­ri­enced a break­through in its en­ergy man­age­ment tech­nol­ogy. Nis­san’s engi­neers were able to re­duce the bat­tery ca­pac­ity to match its com­peti­tors’ hy­brid ve­hi­cles while still de­liv­er­ing de­sir­able EV qual­i­ties, such as quiet­ness and ef­fi­cient en­ergy use. In ad­di­tion, ap­pli­ca­tion of Nis­san’s tech­nolo­gies, such as the in­te­gra­tion of a power-gen­er­at­ing en­gine, elec­tric mo­tor drive for com­pact car use, strength­en­ing of the pow­er­train’s rigid­ity and im­prove­ments in NVH lev­els, be­came the foun­da­tion of e-POWER and its im­ple­men­ta­tion in the com­pact-car seg­ment.

Nis­san is com­mit­ted to de­vel­op­ing elec­tric-pow­ered pow­er­trains that use var­i­ous fu­els to cater to the dif­fer­ent re­quire­ments of the world’s mar­kets. e-POWER is but one ex­am­ple of that quest and will strengthen Nis­san’s lineup of elec­tric-pow­ered pow­er­trains. Nis­san is also con­duct­ing re­search and de­vel­op­ment of the SOFC (Solid Ox­ide Fuel Cell) fuel-cell ve­hi­cle, and will con­tinue to in­tro­duce in­no­va­tive new prod­ucts into var­i­ous ar­eas and pro­mote the world­wide use of EVs.

Note: The e-POWER sys­tem is clas­si­fied as a se­ries hy­brid. The Note e-POWER rep­re­sents the first mass-pro­duc­tion com­pact seg­ment car ever to be equipped with a se­ries hy­brid sys­tem.

BRUS­SELS: Euro­pean Union Com­mis­sioner for Trade Ce­cilia Malm­strom (left) and Euro­pean Union Com­mis­sioner for Jobs, Growth, In­vest­ment and Com­pet­i­tive­ness Jyrki Katainen (right) talk to the me­dia about com­mis­sion’s pro­posal for a new method­ol­ogy for anti-dump­ing in­ves­ti­ga­tions at the Euro­pean Union Com­mis­sion head­quar­ters in Brus­sels yes­ter­day. —AFP

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