ELEC­TRIC AXLES

Car (South Africa) - - FEATURE -

An easy way of turn­ing a con­ven­tional, front-wheel-drive ve­hi­cle into a hy­brid is to power the rear wheels with an elec­tric mo­tor. GNK has de­vel­oped a clever rear-axle sys­tem that can t in in the space en­ve­lope of the rear sus­pen­sion. The co-axle de­sign is com­pact and, claims GNK, re­sults in ex­cel­lent noise, vi­bra­tion and harsh­ness char­ac­ter­is­tics. The unit also has a clutch that can de­cou­ple the elec­tric mo­tor when not needed. This will both re­duce fric­tional losses and pre­vent elec­tric mo­tor over-speed dur­ing high­way use. When con­nected, the elec­tric drive not only ful ls a hy­brid role, but also en­dows the ve­hi­cle with all-wheel-drive ca­pa­bil­ity. This is used in the cur­rent Volvo XC90 and XC60 T8 hy­brid ap­pli­ca­tions.

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