BMW I01, Информация о продукте

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I01�High-voltage�Components
3.�Electric�Motor
32
3.2.2.�Transmission
The�transmission�of�the�I01�was�developed�by�the�BMW Group�and�its�being�produced�in�the�BMW
plant�in�Dingolfing.
The�transmission�has�an�overall�ratio�of�9.7:1.�The�engine�speed�at�the�transmission�input�is�9.7
times�greater�than�at�the�transmission�output.�This�ratio�is�realized�using�two�spur�gear�units.�In
addition�to�the�input�shaft,�there�is�also�an�intermediate�shaft�in�the�transmission.�The�spur�gear�unit
at�the�transmission�output�is�fixed�to�the�differential�cage�and�drives�the�differential.�The�differential
distributes�the�torque�to�two�outputs�and�enables�the�engine�speed�adjustment�between�the�two
outputs.�The�differential�has�an�almost�identical�design�to�that�of�a�front�axle�differential,�as�used
in�BMW�vehicles�with�a�four-wheel�drive�(front�axle�differential 156).�For�use�in�the�I01�only�surface
hardening�measures�and�a�high-strength�material�are�used.
Structure�of�the�transmission
Index Explanation
A View�from�rear�left
B View�from�rear�right
1 Geared�shaft�as�connection�for�the�drive�shaft�of�the�electrical�machine
2 Transmission�input�shaft
3 Spur�gear�unit�1�at�input�shaft
4 Spur�gear�unit�2�at�intermediate�shaft
5 Spur�gear�unit�4�at�transmission�output
6 Differential