Compound Lever Based Optimal Configuration Selection of Compound-Split Hybrid Vehicles KAIST

Format:

Conference/Event

Author/Creator:

Barhoumi, Barhoumi, author.

Contributor:

Kim, Hyunjun

Kum, Dongsuk

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractFinding optimal split hybrid configurations through exhaustive search is almost intractable, mainly due to the huge design space, e.g. 252 compound split configurations using two planetary gear sets (PG). Thus, a systematic exhaustive design methodology is required to find optimal configurations. While most of the prior studies proposed methodologies that assess the performance within the physical design space, id est based on the powertrain configurations, this paper proposes a compound lever-based comprehensive design methodology. The (virtual) compound lever is an attractive design tool defined by two design variables, id est α and β, that omits the redundancy existing within the physical design space, thus, reduces the computational load. The proposed method explores the entire (virtual) compound lever design space to find optimal compound split configurations with outstanding fuel economy and acceleration performance. First, two performance metrics, id est fuel economy and acceleration performance, are assessed within the entire compound lever design space, and optimal compound lever designs, id est optimal α and β, are selected. These selected compound lever designs, however, lack the physical parameters (e.g. PGs connections and gear ratios) required for further design steps. Therefore, a conversion model and conversion equations are developed in order to convert the selected optimal compound lever designs into feasible powertrain configurations. The developed compound-lever design methodology was applied to a few optimal designs on the Pareto front, and multiple novel compound split configurations with outstanding fuel economy and acceleration performance were found

Notes:

Vendor supplied data

Publisher Number:

2017-01-1148

Access Restriction:

Restricted for use by site license