ABC (Australia) - - NEWS -

TRANS­MIS­SION and com­mer­cial ve­hi­cle tech­nol­ogy spe­cial­ist Voith pre­sented new in­no­va­tive and ef­fi­cient bus prod­ucts at IAA 2018, in Han­nover, Ger­many: a new elec­tri­cal drive sys­tem and the new DIWA NXT trans­mis­sion, it’s re­ported.

Touted as key to more eco­nom­i­cal bus op­er­a­tion, the new in­no­va­tive fully elec­tri­cal drive sys­tem en­ters Voith into the grow­ing mar­ket for e-mo­bil­ity, the com­pany says.

The elec­tri­cal drive sys­tem is a well-bal­anced sys­tem that im­presses with low weight and max­imised ef­fi­ciency, rounded off with an in­tel­li­gent en­ergy man­age­ment sys­tem, it’s claimed.

The first pro­to­type was in­stalled in a So­laris Urbino elec­tric, but the Voith sys­tem can be eas­ily in­te­grated into ve­hi­cles from other man­u­fac­tur­ers without re­stric­tions, says Voith.

Fur­ther, it of­fers out­stand­ing driv­ing per­for­mance with a torque of 2,250Nm and 260kW, it states.


Ad­di­tion­ally, ac­cord­ing to the com­pany it is stay­ing “on track” of ef­fi­cient bus op­er­a­tion with the de­vel­op­ment of its new DIWA NXT trans­mis­sion – which re­mains the num­ber one choice for city buses, said Voith.

The DIWA NXT fea­tures an op­tional mild-hy­brid sys­tem with a 48V cen­tral re­cu­per­a­tion unit (CRU). In ad­di­tion, the new trans­mis­sion per­fectly meets the needs of the in­ter-city and coach seg­ment by pro­vid­ing an ad­di­tional over­drive gear, it’s stated.


The Voith DIWA.6 au­to­matic trans­mis­sion of­fers an ad­di­tional Stop-Start func­tion­al­ity, so that bus op­er­a­tors can in­crease the prof­itabil­ity of their ve­hi­cles while also pro­vid­ing added value for the en­vi­ron­ment, the com­pany says. Depend­ing on the duty cy­cle, this en­ables fuel sav­ings of up to 12 per cent, it’s claimed.

Also, an­other piece of use­ful tech­nol­ogy is the Voith ECO-SWR (sec­ondary wa­ter re­tarder), which is ‘dis­con­nectable’ dur­ing idling and uses wa­ter to brake. It is de­signed for buses as well as trucks and uses the en­gine coolant as its op­er­at­ing medium. In this way, the ECO-SWR han­dles up to 90 per cent of all ve­hi­cle brak­ing wear-free, it’s stated.


‘Smart Main­te­nance’ reg­u­larly mon­i­tors the con­di­tion of the au­to­matic trans­mis­sion, re­duc­ing un­planned ser­vice-re­lated down­times, in­creas­ing ve­hi­cle avail­abil­ity, and en­abling im­proved and fore­sighted main­te­nance plan­ning, with ve­hi­cle data trans­mit­ted to Voith servers, where it is eval­u­ated with state-of-the-art tech­nol­ogy, says the com­pany.


The On Ef­fi­ciency so­lu­tions by Voith in­crease fuel ef­fi­ciency by both tech­ni­cal en­able­ment based on ad­vanced con­fig­u­ra­tion of the trans­mis­sion, plus via peo­ple en­able­ment based on mo­ti­vat­ing the driver to im­prove their driv­ing be­hav­iour and to pro­vide real-time in­for­ma­tion about driv­ing style.

The new On Ef­fi­ciency Smart Ac­cel­er­ate is a soft­ware con­fig­u­ra­tion up­date for the DIWA trans­mis­sion, which in­creases the em­bed­ded in­tel­li­gence in city buses, of­fer­ing op­er­a­tional op­ti­mi­sa­tion without the need for any spe­cific train­ing for driv­ers. The sys­tem aims to sig­nif­i­cantly and sus­tain­ably re­duce fuel con­sump­tion of buses, it’s stated.

Fur­ther­more, it com­bines the sig­nals ac­quired from ex­ist­ing sen­sors in Voith’s au­to­matic trans­mis­sion sys­tem with in­for­ma­tion from the CAN net­work to in­ter­act with the driver’s com­mands and the ve­hi­cle’s dy­namic be­hav­iour.

This mo­bil­ity soft­ware so­lu­tion takes cur­rent tech­nolo­gies to the next level in terms of CO2 emis­sion cut­backs without the need for sig­nif­i­cantly more ex­pen­sive

“On Ef­fi­ciency Driver As­sist aims to mo­ti­vate the drive to im­prove driv­ing be­hav­iour.”

and com­plex so­lu­tions, says Voith.

On Ef­fi­ciency Driver As­sist aims to mo­ti­vate the driver to im­prove driv­ing be­hav­iour, while en­abling fleet man­agers to run a more ef­fi­cient op­er­a­tion, it’s claimed.

Util­is­ing Voith’s do­main knowl­edge in drive tech­nol­ogy and lo­cal pub­lic trans­port, this so­lu­tion pro­vides the driver with real-time in­for­ma­tion about driv­ing style.

Fur­ther­more, it helps to keep the driver en­gaged and mo­ti­vated, and thus re­duces fuel con­sump­tion in the short and long term. Un­like ex­ist­ing ad­vi­sory sys­tems, On Ef­fi­ciency Driver As­sist is a com­pre­hen­sive plat­form that pro­vides trans­par­ent and eas­ily im­ple­mentable in­sights about how to in­crease fuel ef­fi­ciency, says Voith.

The new DIWA NXT trans­mis­sion

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