View source for Lambda component protection (LAMBTS)

''This is a translation from the [[Funktionsrahmen]]''

=LAMBTS Abbreviations=
{| cellspacing="10"
! Parameter  
! Source-X     
! Source-Y  
! Type      
! Designation
|-
|CWLAMBTS   ||             ||          ||FW        ||Code word: Lambda component protection                                         
|-
|DTBTS      ||             ||          ||FW        ||Temperature hysteresis for component protection                               
|-
|DTWILABTS  ||             ||          ||FW        ||Charger temperature hysteresis for component protection                       
|-
|DTWISBTS   ||             ||          ||FW        ||Temperature hysteresis for bridge component protection                        
|-
|ETADZW     ||DZWG         ||          ||KL        ||ZW-efficiency as a function of delta ZW                                       
|-
|FBSTABGM   ||TABGBTS_W    ||          ||KL        ||Factor component protection depending on model. Exhaust gas temperature       
|-
|KFDLBTS    ||DETAZWBS     ||NMOT      ||KF        ||Delta Lambda set for component protection                                     
|-
|KFFDLBTS   ||NMOT         ||RL_W      ||KF        ||Delta Lambda factor set for component protection                              
|-
|KFLBTS     ||NMOT         ||RL_W      ||KF        ||Lambda set for component protection                                           
|-
|KFLBTS2    ||NMOT         ||RL_W      ||KF        ||Lambda set for component protection                                           
|-
|SNM16GKUB  ||NMOT         ||          ||SV        ||Interpolation points distribution mixture control 16 nmot Interpolation points
|-
|SRL12GKUW  ||RL_W         ||          ||SV        ||Interpolation points distribution mixture control 12 rl_w Interpolation points
|-
|SY_ATMLA   ||             ||          ||SYS (REF) ||SYStem constant exhaust gas temperature model loaders available               
|-
|SY_ATMST   ||             ||          ||SYS (REF) ||SYStem constant exhaust gas temperature model available bridge                
|-
|SY_STERBTS ||             ||          ||SYS (REF) ||Constant exhaust SYStem component protection bank Selective                   
|-
|SY_TURBO   ||             ||          ||SYS (REF) ||Turbocharger SYStem constant                                                  
|-
|TABGBTS    ||             ||          ||FW        ||Exhaust temperature threshold for component protection                        
|-
|TDLAMBTS   ||             ||          ||FW        ||off delay time for release lambda component protection                        
|-
|TIKATBTS   ||             ||          ||FW        ||Temperature threshold in the cat for component protection                     
|-
|TKATBTS    ||             ||          ||FW        ||Kat-temperature threshold for component protection                            
|-
|TVLBTS     ||             ||          ||FW        ||Lag time lambda desired component protection                                  
|-
|TWILABTS   ||             ||          ||FW        ||Charger temperature threshold for component protection                        
|-
|TWISTBTS   ||             ||          ||FW        ||bridge temperature threshold for component protection                         
|-
|ZDLBTS     ||             ||          ||FW        ||Time constant lambda delta component protection                               
|-
|ZLBTS      ||             ||          ||FW        ||Time constant lambda component protection                                     
|}

{| cellspacing="10"
! Variable  
! Source                
! Type 
! Designation
|-
| B_DASH     ||MDFAW                  ||EIN   ||Condition: dashpot-change limit active                             
|-
| B_GSAF     ||CAN                    ||EIN   ||Condition transmission shift operation request 
|-
| B_TABGBTS   ||LAMBTS                ||LOK   ||Exhaust temperature condition for component protection exceeded   
|-
| B_TATMBTS  ||LAMBTS                 ||LOK   ||Condition: Temperature from ATM exceeded for component protection 
|-
| B_TIKATBTS ||LAMBTS                 ||LOK   ||Temperature condition in the cat exceeded for component protection
|-
| B_TKATBTS  ||LAMBTS                 ||LOK   ||Catalyst temperature condition for component protection exceeded  
|-
| B_TWILABTS ||LAMBTS                 ||LOK   ||Temperature condition loader for component protection exceeded    
|-
| B_TWISTBTS ||LAMBTS                 ||LOK   ||bridge condition temperature for component protection exceeded    
|-
| DETAZWBS   ||LAMBTS                 ||LOK   ||Delta ZW efficiency for component protection                      
|-
| DLAMBTS_W  ||LAMBTS                 ||LOK   ||Delta Lambda for component protection                             
|-
| DZWG       ||LAMBTS                 ||AUS   ||Delta ignition due to Optimal-ZW-ZW                               
|-
| ETAZWG     ||LAMBTS                 ||LOK   ||Efficiency in the basic ignition                                  
|-
| ETAZWIM    ||LAMBTS                 ||LOK   ||Mean efficiency in the actual firing angle                        
|-
| ETAZWIST   ||MDIST                  ||EIN   ||Actual ignition angle                                             
|-
| FLBTS_W    ||LAMBTS                 ||LOK   ||Lambda factor component protection                                
|-
| LAMBTS2_W  ||LAMBTS                 ||AUS   ||Lambda for component protection Bank2                             
|-
| LAMBTS_W   ||LAMBTS                 ||AUS   ||Lambda for component protection                                   
|-
| LBTS2_W    ||LAMBTS                 ||LOK   ||Lambda for component protection from stationary map Bank2         
|-
| LBTS_W     ||LAMBTS                 ||LOK   ||Lambda for component protection from stationary map               
|-
| NMOT       ||BGNMOT                 ||EIN   ||Motor speed                                                       
|-
| RL_W       ||EGFE                   ||EIN   ||relative air charge (Word)                                           
|-
| SY_LAMBTS  ||PROKONAL               ||EIN   ||SYStem constant component protection available                      
|-
| TABGBTS_W  ||LAMBTS                 ||LOK  || Exhaust gas temperature for component protection                    
|-
| TABGKRM_W  ||ATM                    ||EIN   ||Exhaust gas temperature in the manifold of model                    
|-
| TABGM_W    ||ATM                    ||EIN   ||Exhaust temperature before the catalytic converter from model (Word)
|-
| TIKATM_W   ||ATM                    ||EIN   ||Exhaust gas temperature in the catalyst of model                    
|-
| TKATM_W    ||ATM                    ||EIN   ||Catalyst temperature from model (Word)                              
|-
| TWILAM_W   ||                       ||EIN   ||Wall temperature from model loaders                                 
|-
| TWISTM_W   ||                       ||EIN   ||Cylinder head temperature model from [K] in VS100 visible in [deg C]
|-
| ZWGRU ZWGRU ||                      ||EIN   ||Basic ignition                                                      
|-
| ZWOPT MDBAS ||                      ||EIN   ||optimum firing angle
|}

=LAMBTS Functional Description=
==Task==
Protection of components (manifold, supercharger turbine, etc.) by mixture enrichment.

==Principle==
Excessive exhaust gas temperature (EGT) can be reduced by enriching the air-fuel mixture. This provides more highly enriched fuel into the cylinder than for a true stoichiometric mix. Combustion of the mixture is therefore incomplete due to insufficient oxygen. The unburned fuel condenses on the cylinder walls and transfers exhaust energy with it, thereby the exhaust gas temperature decreases.

==LAMBTS: Description==
Via the map [[KFLBTS]] can be dependent on the function of speed nmot and charge rl rich a lambda setpoint shift to make. The enrichment is only effective when the modeled temperatures tabgm_w, tkatm_w, tikatm_w or twistm_w in Partial function LAMBTSENABLE exceeds its applicable threshold and the switch delay time expired [[TDLAMBTS]] + [[TVLBTS]] is. Via the SYStem constant SY_ATMST can be defined whether the function exists twistm_w% ATMST and about the SY_ATMLA SYStem constant can be defined, whether twilam_w available from the function is ATMLA%. The map describes the stationary [[KFLBTS]] necessary enrichment, whereas the curves of the model temperatures, the dynamics describe.
 
This avoids that is enriched in short-term approach to a stationary critical operating point too early. The temperature hysteresis [[DTBTS]] [[DTWISBTS]] or prevent a periodic switching on and off of enrichment if, in the enrichment A temperature occurs which is below the cut-in. For projects with Stereo exhaust SYStem, where the exhaust temperatures of the two banks within the same operating point very strongly can differ, via the SYStem constant SY_STERBTS = true protection of the components over the maps [[KFLBTS]], [[KFLBTS2]] separated for both banks will be applied.
 
When deterioration of the ignition angle efficiency leads to an increase in the exhaust gas temperature. This increase can be with a mixture enrichment counteract (see Part [[DLAMBTSZW]] function). For this, the ignition angle efficiency etazwg the basic ignition angle and the ignition point [[ZWGRU]] average efficiency ignition angle when etazwim Actual ignition calculated firing angle. The difference of etazwg and etazwim results in the degradation efficiency detazwbs. Dependent on detazwbs can now via the map [[KFDLBTS]] an additive enrichment be carried out. The enrichment can be used in the desired range by means of the characteristic [[KFFDLBTS]] (nmot, rl) attenuated or eliminated. Again, this enrichment is only effective if one of the modeled exhaust temperatures below their corresponding threshold over. With the time delay [[TVLBTS]], a short-term exceeding of the critical temperature components are allowed. Must first be
However, the time [[TDLAMBTS]] have expired. With the low-pass filter [[ZDLBTS]] one has the possibility that otherwise abrupt enrichment to be ground upon reaching the critical component temperature.



''Special thanks to [http://www.nefariousmotorsports.com/forum/index.php/topic,555.0title,.html phila_dot] for translating this section.''