When Angular limit is exceeded How can I make torque affect only one bone and not other bones?

When I add Torque to a bone of the Skeleton Pawn, the bone is rotated, but when the joint angular limit of this bone is exceeded, the torque begins to be applied to the other connected bone. I want the applied torque to rotate only one bone. Don’t get me wrong here, child bone can affect the parent bone, but when torque is applied, it should only be applied to the child bone. I tried this by enabling “parent dominates” but got a much worse result. In short, parent bone can be affected by child bone movement, but when I apply Add Torque to child bone, only child bone should be affected to rotate.