The independent claim in an energy-management patent is usually about reconciling two competing demands, and this one is no exception. Volvo Truck's grant US12649382B2, "Computer implemented method for controlling energy storage of a battery pack" (issued June 9, 2026), carries the CPC trail B60L 58/12 (control of battery state of charge), B60L 7/10 (electrodynamic braking / regeneration), and B60T 17/22 (testing or monitoring brake systems). Read together, those codes say this is about managing battery energy with regenerative braking in the loop.
Here is the tension the method resolves. A battery has a state of charge, and regenerative braking pushes energy back into it — but a full battery cannot accept regen, and a battery near its limits should not be force-fed. For a heavy truck descending a long grade, that is not academic: regenerative braking is doing real work holding the vehicle back, and if the pack cannot absorb the energy, the system has to fall back to friction brakes. The method claims controlling the pack's energy storage so that regen capacity is available when braking demands it.
Why trucks make this a sharper problem than cars. A loaded commercial vehicle has enormous kinetic energy, sustained downhill braking, and duty cycles measured in hundreds of thousands of kilometers. Managing the battery so it can both deliver propulsion power and reliably accept braking energy — without overcharging, without overheating, without prematurely aging — is a genuine engineering constraint. The B60T braking-monitor classification alongside the B60L energy codes tells you the claim treats braking and energy storage as one coupled system.
Novel where the coupling is novel. Battery state-of-charge management is well-trodden, and regenerative braking is decades old; the defensible position is the specific computer-implemented method that coordinates the two for this application. The independent claim defines that coordination; reading the abstract as "Volvo patented battery management" would be the usual overreach. The scope is the energy-control method, fenced by dependent claims that add the conditions and parameters.
The assignee — Volvo Truck Corporation — locates this in commercial-vehicle electrification, a segment with different economics from passenger EVs. Heavy-truck makers patent energy-and-braking integration because uptime, total energy efficiency, and brake-system longevity are direct cost lines for fleet buyers. A granted method here is a piece of IP aimed at that buyer's economics, not at a spec sheet.
For the B60L class, this grant is a reminder that electric propulsion IP spans far beyond passenger cars, and that the regenerative-braking subcodes (B60L 7/10) are where energy-recovery claims concentrate. Tracking heavy-vehicle assignees in B60L 58 and B60L 7 reveals a parallel electrification race that the passenger-EV coverage often misses.