Research Article

Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism

Volume: 10 Number: 3 August 19, 2026

Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism

Abstract

Torque transfer is an integral aspect of the automotive industry, across all vehicle architectures including internal combustion engines, battery electric, hybrid, and hydrogen fuel cell to increase performance, efficiency, and vehicle stability in all driving conditions. Traditional differential mechanisms used for torque transfer to each wheel often fail to provide enough torque biasing under varying load conditions to maintain optimal wheel slip in low friction surfaces. This paper presents grounded design methodology for high performance electronic limited slip differential (eLSD) incorporating advanced controller architecture and brake hold functionality. The study unifies optimal sizing of torque amplification components with 1.2 Nm electronically controlled BLDC actuator and a 101.5 reduction gear ratio to achieve 2000 Nm locking torque. Analytical results determine an axial force requirement of ~25.7 kN, distributed across four load‑bearing balls at ~6.4 kN each. Hertzian stress evaluation identifies optimal ball diameters of 12 mm to maintain stresses below 4000Mpa, ensuring durability without involving exotic material and complex manufacturing process. Time‑domain simulations confirm sub‑200 millisecond engagement, validating the architecture for high‑bandwidth torque vectoring and vehicle‑stability interventions. An integrated controller and optional low‑energy brake‑hold mechanism reduce power consumption during sustained engagement by more than 90%. Overall, the proposed framework provides a rigorous analytical foundation for the design of compact, durable, and energy‑efficient eLSD systems for modern driveline applications.

Keywords

References

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Details

Primary Language

English

Subjects

Automotive Mechatronics and Autonomous Systems

Journal Section

Research Article

Publication Date

August 19, 2026

Submission Date

November 20, 2025

Acceptance Date

April 30, 2026

Published in Issue

Year 2026 Volume: 10 Number: 3

APA
Pimpale, S. (2026). Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism. International Journal of Automotive Science And Technology, 10(3), 562-571. https://doi.org/10.30939/ijastech..1827614
AMA
1.Pimpale S. Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism. IJASTECH. 2026;10(3):562-571. doi:10.30939/ijastech.1827614
Chicago
Pimpale, Siddhesh. 2026. “Electromechanical ELSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism”. International Journal of Automotive Science And Technology 10 (3): 562-71. https://doi.org/10.30939/ijastech. 1827614.
EndNote
Pimpale S (August 1, 2026) Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism. International Journal of Automotive Science And Technology 10 3 562–571.
IEEE
[1]S. Pimpale, “Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism”, IJASTECH, vol. 10, no. 3, pp. 562–571, Aug. 2026, doi: 10.30939/ijastech..1827614.
ISNAD
Pimpale, Siddhesh. “Electromechanical ELSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism”. International Journal of Automotive Science And Technology 10/3 (August 1, 2026): 562-571. https://doi.org/10.30939/ijastech. 1827614.
JAMA
1.Pimpale S. Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism. IJASTECH. 2026;10:562–571.
MLA
Pimpale, Siddhesh. “Electromechanical ELSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism”. International Journal of Automotive Science And Technology, vol. 10, no. 3, Aug. 2026, pp. 562-71, doi:10.30939/ijastech. 1827614.
Vancouver
1.Siddhesh Pimpale. Electromechanical eLSD for EV Drivelines: High-Density Torque Actuation and Low-Energy Brake Hold Mechanism. IJASTECH. 2026 Aug. 1;10(3):562-71. doi:10.30939/ijastech. 1827614


International Journal of Automotive Science and Technology (IJASTECH) is published by Society of Automotive Engineers Turkey

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