EMB ERJ 145 ER/LR
Flight Crew Last 90 Days 82; Flight Crew Total 3288; Flight Crew Type 1927
Inflight Event / Encounter Loss Of Aircraft Control; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Requested ATC Assistance / Clarification; Flight Crew Regained Aircraft Control
Environment - Non Weather Related; Procedure
We were on approach into CLT  [Runway] 18C; level at 4;000 ft. We encountered wake turbulence which disconnected the auto pilot and caused us to take action to correct the aircraft from an upset state. Once corrected we contacted ATC and were able to continue the approach to landing with no other issues. Hard rolling action which disconnected auto pilot. Wake turbulence.  Corrected the state of the aircraft and corrected back on course after deviation. As we did keep focused on the airplane and be ready for anything.
Reporter stated the roll rate was sudden and aggressive.
EMB-145 F/irst Officer reported encountering wake turbulence on approach to CLT that caused a 'hard roll' and disconnected the autopilot.