Optimisation-Driven Framework for Heterogeneous Battery-Pack Mixing in Fleet Applications Volvo Pvt., Limited

Format:

Book

Conference/Event

Author/Creator:

Nair, Sandeep R., author.

Contributor:

Hallberg, Linus

Ravichandran, Balu Prashanth

Conference Name:

Symposium on International Automotive Technology (2026) (2026-01-28 : Pune, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Fleet owners often encounter significant logistical and financial problems when dealing with battery packs of different ages and conditions. The standard industry practice is to replace old batteries with identical new ones. This process is inefficient because it costs a lot, creates too much inventory, and eliminates battery packs that are still useful too soon. The problem worsens when manufacturers stop making older battery models, which can force a vehicle to retire early.This paper puts forward a framework for mixing different types of battery packs to deliver the performance needed for a vehicle's mission. We show how this works in three everyday service situations: 1) Repair, when a single damaged pack needs replacing; 2) Life Extension, where aged packs are combined with newer ones to meet mission range; and 3) Performance Restoration, which uses next-gen packs when the original parts are obsolete.The study shows that a vehicle can complete its required missions by strategically mixing new and old battery packs, holding up key performance metrics. This can also lower the total cost of ownership by about a third. The framework produces a Battery Replacement Matrix, which sets a specific minimum State of Health (SoH) threshold for the remaining packs

Notes:

Vendor supplied data

Publisher Number:

2026-26-0209

Access Restriction:

Restricted for use by site license