I01�High-voltage�Components
3.�Electric�Motor
18
operation�during�brake�energy�regeneration.�However,�in�practice�only�a�fractional�part�of�this�maximum
value�is�used�in�alternator�operation.�As�a�result,�the�braking�torque�at�the�rear�axle�is�restricted�so�as
not�to�affect�the�driving�stability�by�the�brake�energy�regeneration.
Power�and�torque�diagram�for�IB1P25B�machine�compared�to�the�N52B30U1�engine
The�power�and�torque�diagram�shown�here�is�not�the�full�load�diagram.�Instead,�the�data�was�recorded
at�a�lower�supply�voltage,�as�it�occurs,�for�example,�during�a�partially�charged�high-voltage�battery.
Nevertheless,�the�data�of�the�electrical�machine�are�impressive�and�do�not�need�to�fear�comparison
with�the�N52B30U1�engine.�The�following�properties�are�characteristic�of�the�electrical�machine
IB1P25B�in�the�I01:
