Abstract:
A method is provided for controlling a filling (rl) of an internal combustion engine (2) including the camshaft phase adjustment in the case of a predefined setpoint filling (rlsol), including the following steps: carrying out the filling control based on an indicated pressure difference for obtaining a control variable (ΛFuereg) for setting an air mass supply to the internal combustion engine (2); and ascertaining the indicated pressure difference (ΔpSR) as a difference between a predicted intake manifold pressure (psrpred) and an actual intake manifold pressure (pSR), the predicted intake manifold pressure (psrpred) corresponding to an intake manifold pressure which is necessary for reaching the setpoint filling (rlsol) at an aspiration curve which is predicted for a predefined time constant (τ).
Abstract:
A method for generating correcting variables for the operation of an internal combustion engine which comprises exhaust gas valves and which comprises at least one component, through which the exhaust gas of the internal combustion engine flows, wherein values of the temperature occurring at the exhaust gas valves during operation of the internal combustion engine are read out from a first characteristic map. The method is characterized in that values of correcting variables are read out from a further characteristic map, which is at least partially an inverted characteristic map with respect to the first characteristic map, which are predefined such that specified maximum values of the component temperature are not exceeded for the component through which the exhaust gas of the internal combustion engine flows. Respective independent claims are directed to a device configured for performing the method, a computer program configured for performing the method, and a machine-readable storage medium with a computer program stored thereon.
Abstract:
A method is provided for controlling a filling (rl) of an internal combustion engine (2) including the camshaft phase adjustment in the case of a predefined setpoint filling (rlsol), including the following steps: carrying out the filling control based on an indicated pressure difference for obtaining a control variable (ΛFuereg) for setting an air mass supply to the internal combustion engine (2); and ascertaining the indicated pressure difference (ΔpSR) as a difference between a predicted intake manifold pressure (psrpred) and an actual intake manifold pressure (pSR), the predicted intake manifold pressure (psrpred) corresponding to an intake manifold pressure which is necessary for reaching the setpoint filling (rlsol) at an aspiration curve which is predicted for a predefined time constant (τ).