Failure safety control device for internal combustion engines, which with a mechanism for variable defining are provided, and associated method

摘要

If it is found that one of several mechanisms for variable defining has failed, which in each case for a cylinder group is provided, a more effective degree of opening (valve lift, valve actuation angle or the like) of a valve property obtained in the failure state. If in the case of the effective degree of opening it is found that it is equal to a predetermined value or is greater, the valve property of the normal mechanism for variable defining controlled in such a way that it with the valve property corresponds in the failure state. If in the case of the effective degree of opening it is found that it is smaller than the predetermined value, a control system, so that the control is limited in such a way that the valve property of the normal mechanism for variable defining with the valve property corresponds in the failure state.