Active Electrical Power Flow Control System for Optimization of Power Delivery in Electric Hybrid Vehicles

Northern Illinois University
posted on 03/23/2010

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The invention provides an energy management system that provides power efficiency in electric hybrid vehicles. The system provides a method of controlling power flow in a vehicle, including the steps of determining the amount of energy storage required for each power source device and controlling the power flow delivery between the source devices to the vehicle. This systematic method of establishing component values and determining power distribution better utilizes the energy sources in fuel cell electric vehicles by taking advantage of the unique charging/discharging properties of each source to maximize individual component capacities. The control system utilizes algorithms for determining the amount of energy storage required for each of the devices, and for determining controlling power flow delivery between the devices. When the size of the energy storage systems is decided, a new method of controlling the power flow is proposed based upon optimal control techniques.

plug-in and non plug-in electrical power delivery hybrid devices that utilize standard battery, capacitors, and fuel cells

mathematical algorithms control and distribute adequate power from the available sources depending on the energy demands; the battery can re-energize during the operational cycle if a user forgets to recharge the battery through plug-in; controlling process finds a power balance amongst components, so that not only operating costs are minimized, but also all energy storage systems maintain their individual optimal working capacities