Abstract: A method and system (and/or a total simulation) have at least first and second sub-systems. An interconnection network is determined, which couples and determines the first and the second sub-systems at a coupling. First sub-system information of the first sub-system and second sub-system information of the second sub-system are determined. An execution sequence is selected, by which it is determined, in which sequence relative to each other a first and a second parameter outputs are determined. Furthermore, extrapolation methods are determined, by which first and second parameter inputs are determinable during a macro step size (e.g. between the coupling times). The macro step size prescribes-coupling times, at which an exchange of corresponding first and second input parameters and of the first and the second output parameters between the sub-systems is performed.

Abstract: A pre-step co-simulation method and device for co-simulation of several subsystems is disclosed, utilizing partial derivatives of replacement subsystems. On this basis, the exact solutions of output variables of the individual subsystems are approximated by evaluation of an Error Differential Equation in order to estimate the future progress of the approximated exact output variables; corresponding input variables are determined by optimization prior to the current co-simulation time increment. The pre-step co-simulation method is realized within a computer-executable program and implemented in a network of computing nodes.

Abstract: A pre-step co-simulation method and device for co-simulation of several subsystems is disclosed, utilizing partial derivatives of replacement subsystems. On this basis, the exact solutions of output variables of the individual subsystems are approximated by evaluation of an Error Differential Equation in order to estimate the future progress of the approximated exact output variables; corresponding input variables are determined by optimization prior to the current co-simulation time increment. The pre-step co-simulation method is realized within a computer-executable program and implemented in a network of computing nodes.

Abstract: A method and system (and/or a total simulation) have at least first and second sub-systems. An interconnection network is determined, which couples and determines the first and the second sub-systems at a coupling. First sub-system information of the first sub-system and second sub-system information of the second sub-system are determined. An execution sequence is selected, by which it is determined, in which sequence relative to each other a first and a second parameter outputs are determined. Furthermore, extrapolation methods are determined, by which first and second parameter inputs are determinable during a macro step size (e.g. between the coupling times). The macro step size prescribes-coupling times, at which an exchange of corresponding first and second input parameters and of the first and the second output parameters between the sub-systems is performed.