Patent ID: 8720417

Claim:
A control system of an internal combustion engine which is provided with an ammonia feeding system feeding ammonia and a non-ammonia fuel feeding system feeding non-ammonia fuel which is easier to burn than ammonia and which can run in a first running mode feeding only the non-ammonia fuel into a combustion chamber and a second running mode feeding both ammonia and non-ammonia fuel into the combustion chamber, which detects engine speeds or generated torques at the time of running in the first running mode and the time of running in the second running mode, calculates a difference among cylinders of engine speed or generated torque which may occur when feeding only ammonia into the combustion chamber based on the difference of engine speed or generated torque detected between the two running modes, and corrects an ammonia feed amount from the ammonia feeding system of each cylinder based on the calculated difference among cylinders of engine speed or generated torque.