In this work, an algorithm for the operation of a hybrid powertrain is proposed for a parallel hybrid electric vehicle (HEV). The operation algorithm suggested in this work yields the operating points where the operational cost of the HEV is minimal at each state of charge (SOC). The operational cost of an HEV is calculated considering both the cost of fossil fuel consumed by the engine and the cost of electricity consumed by the electric motor. A weighting function of SOC, which is inversely proportional to the SOC, is applied to the estimation of electricity cost. By the effect of a weighting function of the SOC, it is expected that the algorithm has the property of SOC recovery. Computer simulations are carried out in order to test the suggested algorithm, and simulation results show that the final SOC is recovered to the middle band of the SOC as the operation of the HEV is continued, regardless of initial SOC values.
An operation algorithm with state of charge recovery for a parallel-type hybrid vehicle
2003-09-01
7 pages
Article (Journal)
Electronic Resource
English
An operation algorithm with state of charge recovery for a parallel-type hybrid vehicle
Online Contents | 2003
|An operation algorithm with state of charge recovery for a parallel-type hybrid vehicle
Automotive engineering | 2003
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