DETERMINATION OF AN EXCAVATOR SWING BOOM ANGLE BASED ON AN ANGULAR VELOCITY RATIO

A system for determining a swing boom angle of an excavator including a vehicle frame including a cabin, a swing boom arranged on the vehicle frame and configured to be rotated relative to the vehicle frame about a first rotation axis and a pneumatic or hydraulic cylinder. A first end of the pneumatic or hydraulic cylinder is coupled to the vehicle frame and a second end is coupled to the swing boom, wherein the cylinder is configured to be rotated relative to the vehicle frame about a second rotation axis at the first end, wherein the cylinder is configured to rotate the swing boom. The system comprises a first inertial measurement unit (IMU), configured to be mounted on the swing boom and to generate first IMU data, a second IMU configured to be mounted on the cylinder and to generate second IMU data and a processing unit.