Date of Graduation
2002
Document Type
Thesis
Degree Type
MS
Committee Chair
Nigel N. Clark
Abstract
In the past, the process of hybridizing a vehicle has been founded on modeling of drive cycles and vehicle performance requirements. One of the primary advantages of hybridization is the use of regenerative braking to recover energy. This work focuses on creating a different approach to determining the optimal hybrid vehicle component sizes. A hybrid vehicle design process has been established where the vehicle is designed by modeling real world driving data to determine hybrid component sizes needed to maximize the regenerative braking energy recovery. Vehicle speed and road grade data were collected for use in the modeling. The power and energy storage needed to recover the energy due to regenerative braking were examined. The energy that could be recovered due to regenerative braking was determined as a function of electric motor size and energy storage system size. The electric motor and energy storage system rating needed were determined from the optimum energy recovered due to regenerative braking. The components were selected using this method and were also examined according to weight and cost. The electric motor rating and energy storage system size were determined for a post transmission parallel configuration. The parallel hybrid was then simulated to determine the actual energy recovery while using a hybrid vehicle control strategy. The specification based parallel hybrid design was compared with the ideal modeled design and the differences were analyzed.
Recommended Citation
Conley, John Jason, "The role of power and energy demands in hybrid vehicles." (2002). Graduate Theses, Dissertations, and Problem Reports. 10648.
https://researchrepository.wvu.edu/etd/10648