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A Review of the Overall Efficiency of Automotive Energy Recovery Systems in Extending Travel Range

Year: 2025

Type: article

Abstract: Due to the environmental concerns associated with conventional fuel vehicles, improving overall vehicle efficiency has become a key research priority. This paper investigates whether automotive energy recovery systems can effectively enhance efficiency and extend travel distance using the same input energy. Multiple recovery methods—including regenerative braking, mechanical flywheels, thermoelectric generators, Rankine cycle systems, and electric turbochargers—are assessed based on their overall efficiency. These systems aim to recollect and utilize waste energy to improve performance. Among hybrid vehicles, energy recovery remains the most critical factor for efficiency gains. Test results indicate that each method offers measurable benefits, such as reduced battery stress, improved acceleration, and extended range. Mechanical flywheels emerged as the most feasible solution, closely followed by regenerative braking. While all systems show potential, future studies must focus on optimizing control strategies and validating effectiveness under real-world, transient conditions to ensure consistent and scalable improvements in automotive efficiency.

Source: Applied and Computational Engineering

Authors: Jizheng Pan, Chenglin Song, Yuxin Zhang, Zeren Zhu, Tiancheng Dang

Institutions: Shaanxi University of Science and Technology, Qingdao University of Science and Technology

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

Open Access status: hybrid

OpenAlex ID: W4415127444

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