BMW’s wire­less charging

Piako Post - - FRONT PAGE -

BMW has launched the world’s first fac­tory-fit­ted, fully in­te­grated in­duc­tive charging fa­cil­ity for charging the high­volt­age bat­tery in a plug-in hy­brid ve­hi­cle.

Avail­able to cus­tomers as an op­tion on the 530e iPer­for­mance in Ger­many, BMW Wire­less Charging con­sists of the GroundPad (an in­duc­tive charging sta­tion), that can be in­stalled ei­ther in a garage or out­doors, and the CarPad fixed to the un­der­side of the ve­hi­cle.

BMW says the con­tact­less trans­fer of en­ergy be­tween the GroundPad and CarPad is con­ducted over a dis­tance of around eight cen­time­tres, with the GroundPad gen­er­at­ing a mag­netic field that in­duces an elec­tric cur­rent in the CarPad, which then charges the bat­tery.

When the ve­hi­cle is po­si­tioned over the GroundPad the charging process starts au­to­mat­i­cally af­ter the car is turned off, with­out any fur­ther in­put from the driver.

BMW says its wire­less charging uses the same in­duc­tive charging tech­nol­ogy al­ready widely used for sup­ply­ing power to de­vices such as mo­bile phones and elec­tric tooth­brushes.

The car helps the driver to ma­noeu­vre into the cor­rect park­ing po­si­tion us­ing a WiFi con­nec­tion be­tween the charging sta­tion and ve­hi­cle.

Once the con­nec­tion has been made, an over­head view of the car and its sur­round­ings then ap­pears in the car’s dis­play with coloured lines that guide the driver and an icon that shows when the cor­rect park­ing po­si­tion for in­duc­tive charging has been reached.

And you don’t need to be too ac­cu­rate ei­ther; BMW say the po­si­tion can de­vi­ate by up to seven cen­time­tres lon­gi­tu­di­nally and up to 14 cen­time­tres lat­er­ally.

The GroundPad can also be in­stalled out­doors, where it may be used re­gard­less of the weather con­di­tions.

SUP­PLIED

BMW wire­less charging.

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