BMW I01, Информация о продукте

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I01�High-voltage�Components
3.�Electric�Motor
36
Index Explanation
5 Output�shaft,�left
6 Transmission�input�shaft�with�gearing
7 O-ring�seal
8 Bore�holes�for�the�mechanical�connection�with�the�electrical�machine
The�O-ring�seal�and�the�X-sealing�ring�must�be�replaced�after�a�disconnection�of�the�transmission�from
the�electrical�machine�
Water�and�dirt�may�penetrate�the�cavity�within�the�transmission�housing�which�can�be�seen�in�the
graphic.�This�is�not�a�problem�for�the�transmission�–�however,�water�and�dirt�must�be�prevented�from
entering�the�electrical�machine�from�there.�For�this�purpose,�the�sealing�ring�marked�in�the�graphic,
which�has�the�letter�"X"�in�the�cross-section,�is�used.
There�is�another�sealing�ring�on�the�transmission�input�shaft.�It�seals�the�hub�space�of�the�electrical
machine,�which�is�filled�with�grease.�With�the�sealing�ring�the�grease�filled�during�installation�remains�in
the�hub�space�and�ensures�the�lubrication�during�the�entire�service�life�of�the�vehicle.
Ring-shaped�through-holes�arranged�on�the�transmission�housing�hold�the�aluminium�screws�for
connecting�the�housing�of�the�transmission�and�the�electrical�machine.
The�aluminium�screws�must�be�replaced�after�disassembly�
Interface�for�the�output�shafts
The�output�shafts�are�connected�in�the�outputs�of�the�differential.�The�torque�is�transmitted�by�the
positive�connection�(gearing)�between�the�output�shafts�and�the�differential.�A�radial�shaft�seal,�as
known�from�conventional�BMW�vehicles,�seals�the�oil�chamber�of�the�transmission.
Covers
The�graphics�in�this�document�show�the�electrical�machine�and�the�transmission�without�its�covers.�In
the�vehicle�sometimes�these�components�are�still�covered�by�a�foam�part.�This�serves�for�the�acoustic
encapsulation�of�the�electric�motor�and�absorbs�noises.
3.2.4.�Parking�lock
Introduction
The�parking�lock�is�responsible�for�securing�the�vehicle�against�rolling�away,�just�like�in�a�conventional
vehicle�with�automatic�transmission.�Even�on�steep�inclines/downhill�gradients�up�to�32%�the�parking
lock�is�able�to�safely�hold�the�I01�at�a�standstill.�Nevertheless,�just�like�for�conventional�vehicles�it�is
recommended�to�also�secure�the�vehicle�against�rolling�away�using�the�parking�brake.