Modelica in Automotive Simulations - Powernet Voltage Control during Engine Idle
Erik Surewaard, Marc Thele · 2005
Due to the increasing electric power demand of future vehicles, problems may be expected with the voltage stability of the powernet. In conventional vehicles, control of the powernet voltage can be lost when the loads in the electric powernet request more power than can be supplied by the generator. In that case voltage control of the powernet will be lost since the generator will not be able to follow the voltage setpoint. The voltage of the electric powernet will drop to and follow the battery voltage. This will go impaired with undesired voltage fluctuations resulting in light flicker and blower motor fluctuations, which can be noticed by the vehicle occupants. This will have a negative effect on customer perception. This paper