Motronic abbreviations

In general, all lowercase acronyms are calculated values; maps and other acronyms are typically all caps.


 * ASR - AntiSlipRegelung: Anti slip control
 * B_ldob - LadeDruck OverBoost: 1 - overboost enable (dynamic driving, use KFVPDKSD), 0 - overboost disable (steady driving, use KFVPDKSE)
 * B_ldobsp: Post overboost lock-out bit (force overboost enable - ignore steady driving resumption)
 * CW_NOROMCHKRESET: disables running checksums - not startup
 * CW_NOZYKLROMCHK: disable cyclic rom monitor checksums
 * DIA: Diagnosis
 * DK - DrosselKlappen: Throttle plate
 * DKW - DrossellKlappenWinkel: Throttle plate angle
 * DLR - DeltaLambdaRegelung: Delta lambda regulation
 * DMD - Delta Moment Dashpotende: ?
 * DMD: Diagnose Misfire Detection
 * DV-E - ?: Wastegate
 * evtmod - EinspritzVentil Temperature (mod=Model?): Estimated fuel injector temperature
 * FGR - FahrGeschwindigkeitsRegler: Cruise control
 * fkmsdk: Multiplicative correction quantity for determining pvdk (pressure upstream of throttle plate) from measured ambient air pressure (pvdkds)
 * fpvdk: pvdk/1013 hPa (correction factor for adjusting the air mass flow at standard pressure upstream from throttle valve to instantaneous conditions)
 * ftbr: ???
 * ftvdk: Intake air temperature compensation factor for converting the standard air mass flow to an air mass flow at an instantaneous temperature
 * furl?
 * fupsrl - Faktor Umrechnungs von ps->rl: rlsol/pssol (conversion factor for converting the intake manifold pressure to a relative charge in % per hPa)
 * KLAF: Outflow characteristic for adjusting the standard flow measured at an above-critical rate of flow to below-critical rates of flow
 * KUMSRL: Parameter for determining the relative cylinder charge from the air mass flow, the engine speed, and the piston-swept volume
 * lde - LadeDruckError: pssol-ps or plsol-plist (boost deviation - feedback input to the LDRPID)
 * LDR - LadeDruckRegelung: Boost pressure regulation
 * ldtv - LadeDruckTastverhältnis: Wastegate duty cycle
 * LL - Leerlauf: Idle
 * Md: misfire detection?
 * nmot: Engine speed (RPM)
 * NWS - KnockWelleSteuerung: Cam shaft control
 * RLFS - Relativ LuftFüllung Steuerung?: Relative air charge control?
 * rlroh: Air mass flowing into the intake manifold, uncorrected relative charge of a cylinder
 * rlsol: Requested load (which is capped by engine load corrected specified)
 * rk - Relativ Kraftstoffmasse: Relative fuel mass
 * prg?
 * pirg: Correction of the intake manifold pressure by exhaust gas recirculation, partial pressure of internal exaust gas recirculation
 * plg - Pressure Ladedruck Grund: reference pressure for vpssplg ratio
 * plist: Actual boost pressure upstream of throttle plate
 * plsol: pssol/vpsspls (requested boost pressure upstream of throttle plate). When vpsspls is lower (e.g. during "dynamic driving"), plsol will be higher (overboost). When vpsspls is higher (e.g. during "steady driving"), plsol will be lower (no overboost).
 * ps: Actual intake manifold pressure
 * pssol: rlsol/fupsrl (requested intake manifold pressure downstream of throttle plate)
 * pspvdk: ps/pvdk (pressure ratio of the pressure drop over the throttle plate)
 * pvdk: pvdkds * fkmsdk (pressure upstream of the throttle plate)
 * pvdkds: Ambient pressure measured by a pressure sensor
 * pu - Umgebungsdruck: Ambient pressure
 * Tans - Temperatur ansaugluft: Intake air temperature
 * Tmot - Temperatur motor: Motor (coolant) temperature
 * TV - Tastverhältnis: Duty cycle
 * te - Einspritzzeit/dauerung effektiv: Effective injector on time
 * ti - Einspritzzeit/dauerung: Injector on time (actual)
 * VA?
 * Verhältnis: ratio
 * vpssplg - Grundladedruckverhältnis: pssol/plg? (pressure ratio between requested intake manifold downstream of throttle plate and reference pressure?)
 * vpsspls: pssol/plsol (pressure ratio across throttle plate)
 * vpsspu: pssol/pu (ratio of requested intake air pressure downstream of throttle plate to ambient air pressure)