BMW I01, Информация о продукте

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I01�High-voltage�Components
3.�Electric�Motor
30
• Transmission�gearing�with�two�spur�gear�units�(central�transmission)
• Differential�integrated�in�the�transmission�housing
• Electromechanically�operated�parking�lock.
As�the�electrical�machine�offers�a�large�usable�engine�speed�range,�the�transmission�of�the�I01�also
only�has�to�provide�one�gear,�i.e.�a�fixed�gear�ratio.�A�combustion�engine�cannot�deliver�torque�when
the�engine�speed�is�zero.�Unlike�the�electrical�machine�of�the�I01:�Its�high�torque�is�already�available
when�the�engine�speed�is�zero�meaning�a�clutch�in�the�transmission�of�the�I01�is�not�required�–�not�for
driving�off�or�for�shifting�gears.
Gear�selector�switch�I01
The�transmission�in�the�I01�is�operated�using�a�mono-stable�rotary�gear�selector�switch.�The�gear
selector�switch�offers�the�option�of�selecting�the�familiar�drive�positions�"P",�"N",�"R",�"D".�The�drive
positions�are�shown�as�a�shift�pattern�with�auxiliary�lines.�The�current�drive�position�is�highlighted.
The�following�table�shows�how�the�individual�drive�positions�are�realized.
Drive
position
Status�of�parking�lock Activation�of�the�electrical�machine
Parking�P Engaged De-energized
Neutral�N Disengaged De-energized
Reverse�R Disengaged Engine/Alternator�with�direction�of�rotation�for
reversing
Drive�D Disengaged Engine/Alternator�with�direction�of�rotation�for
forwards�travel
Two�control�units�are�responsible�for�engaging�and�disengaging�the�parking�lock.