Patent ID: 8463530

Claim:
A method for operating auto ignition combustion engines, comprising: directly linking outputs to an injected fuel mass flow distribution and to an injection timing by taking into account engine out emissions and/or drivability constraints by using an optimization method, determining an optimized torque realization TQI_SP by minimizing an error of a multi-objective function for overall engine operating points, wherein the determined optimized torque realization is implemented by at least one engine actuator configured to control at least one of: a number of injection Nb inj par combustion cycle,1≦i≦Nb inj where i is an index for different fuel injections relating to a large number of fuel injection patterns, such as i =1 for a first pre-injection, i=2 for a second pre-injection, etc.; quantities injected per elementary injection MF i with Σ i MF i =MF; a start of injection SOI i per elementary injection; an air path control by the way of the global equivalence ratio Φ because in our case the measured air mass flow, MA, is linked to injected mass flow MF by Φ=(MF/MA)*α stoich; a global equivalence ratio Φ is set according to the engine load targets and the turbocharger air mass flow limitation for a given operating point; and an EGR rate, X EGR =[burnt gases]./[fresh gases] defined as the ratio between burnt gases and fresh gases in the intake manifold.