LOAD ALLEVIATION FUNCTION (LAF) ACCUMULATORS
Four additional accumulators perform the load alleviation function. These accumulators (one for the green system and one for the yellow system on each wing) maintain the required pressure during high-rate operations of the various movable wing surfaces.
Note : To reduce wing bending loads in turbulence (due to discrete gusts), the ailerons and outboard spoilers are deflected to reduce G loads whenever actual G is 0.3G greater than expected.(difference between pilot demanded load factor and aircraft load factor)... It is active only in normal law and in clean config.
While aspects of the load-alleviation function was originally introduced for a specific certification purpose, these subsequently became redundant. The software was removed, although the mechanical systems in the wing remained in place.
But Airbus has concluded that, with new software, it use the load-alleviation system to increase the A320's payload-range capability.