Work

Integrated Functional Analysis and Optimal Sizing Method for P2 Mild HEV Powertrains

Year: 2026

Type: article

Abstract: Mild hybrid electric vehicles (MHEVs) are a cost-effective solution for reducing fuel consumption and emissions in the automotive sector, offering a low-level electrification alternative to battery electric and plug-in hybrid vehicles. This study uses the Equivalent Consumption Minimisation Strategy (ECMS) to investigate the optimal sizing of P2 MHEV powertrain components and the individual contributions of hybridisation features such as regenerative braking, idling fuel cut-off, load shifting and electric torque assist. Parametric simulations were performed by varying the power of the electric motor and the capacity of the battery for standard driving cycles. The results show that total fuel consumption for the NEDC driving cycle can be reduced by up to 29%, with regenerative braking providing the largest contribution. The optimal electric motor power for mild hybrid applications was found to be in the 20–30 kW range, depending on the driving cycle.

Source: World Electric Vehicle Journal

DOI: 10.3390/wevj17050256

Authors: Sanjarbek Ruzimov, Komiljon Tulaganov, Shafkatbek Alimov, Olimjon Tuychiev, Akmal Mukhitdinov

Institutions: Kimyo International University in Tashkent, Turin Polytechnic University, Tashkent State Transport University

Language: English

Topic: Electric and Hybrid Vehicle Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: gold

Estimated APC paid: $1,689