Engine RPM Vehicle speed selected gear-Bits 0-7 Calculated NOx concentration behind turbocharger NOx-Raw emission model value before reduction catalyst NOx sensor before SCR cat conv: NOx emiss NOx sensor before SCR cat conv: O2 concen. NOx sensor before SCR cat conv: offset correction factor NOx sensor before SCR cat conv: NOx concentration Nox_ratio_upstream_reduction_system_model