processing according to another embodiment a linear measurement signal to load assignment of each passive cylinder pressure sensor is adjusted in respect of its intercept and slope thereby enabling the linear measurement signal to load assignment to be adjusted in respect of all of its degrees of freedom and in particular allowing full calibration to be carried out according to another embodiment correction values are determined for the different values of each measurement signal of the respective passive cylinder pressure sensor namely as a function of each measurement signal of the respective passive cylinder pressure sensor and of the assigned measurement signal of the active cylinder pressure sensor the assignment of each measurement signal of the respective passive cylinder pressure sensor to the load subsequently takes place as a function of the respective correction values in this way the signal processing can also be precisely adjusted in a very simple manner an internal combustion engine fig1 comprises an intake tract 1 an engine block 2 a cylinder head 3 and an exhaust tract 4 the intake tract 1 preferably incorporates a throttle valve 5 as well as a plenum 6 and an intake pipe 7 which leads to a cylinder z 1 via an intake duct in the engine block the engine block 2 additionally comprises a crankshaft 8 which is coupled to the piston 11 of the cylinder z 1 via a connecting rod 10 the cylinder head 3 contains a valve train comprising a gas inlet valve 12 and a.