In the present investigation an innovative procedure to design a Hybrid Electric Vehicle (HEV) is proposed. The procedure is based on two steps: optimization and decision-making. Both steps re-quire a multi-objective approach due to the high number of goals to be taken into account in the de-sign of a complex system like a HEV. The method has been applied to the preliminary design of the powertrain and the tuning of the con-trol strategy of a series hybrid vehicle, simulated with a Matlab-Simulink code. The hardware pa-rameters included the number of axles in the vehicle, the number of electric motors per axle, the type and quantity of energy storage system devices (batteries and/or electrochemical capacitors). The control parameters are related to the fuel economy conversion factors and the maximum and minimum state of charge allowed to the secondary energy storage systems. Several attributes of performance and fuel consumption evaluated with respect to seven driving cy-cles were considered as optimization goals.
A Two-step Optimization Method for the Preliminary Design of a Hybrid Electric Vehicle
DONATEO, Teresa;
2008-01-01
Abstract
In the present investigation an innovative procedure to design a Hybrid Electric Vehicle (HEV) is proposed. The procedure is based on two steps: optimization and decision-making. Both steps re-quire a multi-objective approach due to the high number of goals to be taken into account in the de-sign of a complex system like a HEV. The method has been applied to the preliminary design of the powertrain and the tuning of the con-trol strategy of a series hybrid vehicle, simulated with a Matlab-Simulink code. The hardware pa-rameters included the number of axles in the vehicle, the number of electric motors per axle, the type and quantity of energy storage system devices (batteries and/or electrochemical capacitors). The control parameters are related to the fuel economy conversion factors and the maximum and minimum state of charge allowed to the secondary energy storage systems. Several attributes of performance and fuel consumption evaluated with respect to seven driving cy-cles were considered as optimization goals.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
