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)

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

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)

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)