Hyundai gets In­dian patent for six-speed ATS pow­er­train

The Financial Express - - COMPANIES - Sa­jan C Ku­mar

Chen­nai, March 28: Korean car ma­jor Hyundai Mo­tor Com­pany has been granted an In­dian patent for its in­ven­tion re­gard­ing a six-speed pow­er­train com­pris­ing an au­to­matic trans­mis­sion sys­tem (ATS).

The com­pany, which is the sec­ond largest car maker in In­dia, had filed the patent ap­pli­ca­tion in 2005, claim­ing the in­ven­tion with six for­ward speeds and one re­verse speed re­alises a multi-stage gearshift mech­a­nism of an au­to­matic trans­mis­sion sys­tem of a ve­hi­cle.

Naveen Mathur, deputy con­troller of patents and de­signs, Delhi, al­though ini­tially had raised some ob­jec­tions, granted the patent af­ter be­ing sat­is­fied with re­sponses the com­pany pro­vided with re­gard to the points raised by the patent of­fice. The patent of­fice's ini­tial ob­jec­tions were that the claims lack in­ven­tive step as they could be ob­vi­ous to a per­son skilled in the art when taught by the doc­u­ments in the pub­lic do­main. Hyundai has al­ready re­ceived patent for this 'in­ven­tion' in Korea and the United States.

Ac­cord­ing to a patent doc­u­ment filed by Hyundai, the present in­ven­tion re­lates to a sixspeed pow­er­train of an au­to­matic trans­mis­sion of a ve­hi­cle in­stalled in an au­to­matic trans­mis­sion and trig­gers six for­ward speeds and one re­verse speed. For a man­ual trans­mis­sion, too many speeds cause a driver the in­con­ve­nience of ex­ces­sive man­ual shift­ing. How­ever, for an au­to­matic trans­mis­sion, a trans­mis­sion con­trol unit au­to­mat­i­cally ex­e­cutes shift­ing by con­trol­ling the op­er­a­tion of the pow­er­train, and there­fore, more speeds usu­ally im­plies more mer­its, it sub­mit­ted.

The multi-stage gearshift mech­a­nism of an au­to­matic trans­mis­sion in­cludes a plu­ral­ity of plan­e­tary gear sets. A pow­er­train hav­ing such a plu­ral­ity of plan­e­tary gears sets varies the torque in mul­ti­stages and out­puts it to an out­put shaft when re­ceiv­ing a con­verted en­gine torque from a torque con­verter. The more speeds the pow­er­train of an au­to­matic trans­mis­sion has, the bet­ter the power per­for mance and fuel con­sump­tion are. There­fore, it is de­sir­able for pow­er­trains to have as many speeds as pos­si­ble, the com­pany said.

Hyundai Mo­tor In­dia Lim­ited (HMIL), the wholly owned sub­sidiary of Hyundai Mo­tor Com­pany (HMC) cur­rently has car mod­els across seg­ments – such as Eon, i10, Grand i10, Elite i20, Xcent, Ver na, Elantra, Santa Fe and Creta. HMIL’s fully in­te­grated sta­teof-the-art man­u­fac­tur­ing plant near Chen­nai with a ca­pac­ity of 6.5 lakh units per an­num and boasts of ad­vanced pro­duc­tion, qual­ity and test­ing ca­pa­bil­i­ties.

The In­dian ar m ex­ports to around 85 coun­tries across Africa, Mid­dle East, Latin Amer­ica, Aus­tralia and the Asia Pa­cific. The com­pany had reg­is­tered the do­mes­tic sales of 40,716 units in Fe­bru­ary 2016.

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