An Intelligent Interface with Composite Dominant Directed Graph Based Petri Nets Controller for Rotatable Solar Panel in Integrated PHEV System

[[abstract]]This paper proposes an intelligent dominant directed graph (DDG) based Petri nets (PN) controller to increase the efficiency of the plug-in hybrid electric vehicle (PHEV) by using rotatable solar panel. Conventionally, the PHEV with solar panel has a critical problem of putting on the roof of a PHEV. Since the limited space on the roof of the vehicle is not large enough. Rotatable structure is considered to track the sunlight by intelligent dominant directed graph based Petri nets controller. The mechanical maximum power point tracking (MPPT) function can be achieved. A stepping motor is used to control the rotating angle of the rotating solar panel. With the composite mechanical MPPT with DDG+PN control algorithms, the maximum power in a limited roof space of the vehicle is possible. The solar panel has not to be very large. This increases the efficiency of the PHEV. It is convinced that the proposed DDG+PN MPPT algorithms are applicable to the PHEV system