Lambda drivers (LAMFAW) - Revision history

TTQS at 15:14, 4 December 2011

2011-12-04T15:14:21Z

TTQS at 15:13, 4 December 2011

2011-12-04T15:13:38Z

TTQS at 15:12, 4 December 2011

2011-12-04T15:12:14Z

TTQS at 15:10, 4 December 2011

2011-12-04T15:10:39Z

TTQS at 15:10, 4 December 2011

2011-12-04T15:10:16Z

TTQS at 15:08, 4 December 2011

2011-12-04T15:08:17Z

TTQS at 15:04, 4 December 2011

2011-12-04T15:04:49Z

Show changes

MattDanger at 13:54, 2 June 2011

2011-06-02T13:54:42Z

MattDanger: Added category

2011-06-02T13:53:13Z

Added category

MattDanger at 17:35, 24 May 2011

2011-05-24T17:35:01Z

← Older revision		Revision as of 15:14, 4 December 2011
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	1: dzwlamfaw = min (0, (dzwwl + wkrma)). Default value = 0.		1: dzwlamfaw = min (0, (dzwwl + wkrma)). Default value = 0.
		+

	CWLAMFAW Bit 1: 0: LAMFAW also during torque reduction, e.g. via traction control, engine speed limiter, etc. active		CWLAMFAW Bit 1: 0: LAMFAW also during torque reduction, e.g. via traction control, engine speed limiter, etc. active

@@ Line 1: / Line 1: @@
-See the ''funktionsrahmen ''for the following diagrams:
+See the ''funktionsrahmen'' for the following diagrams:
 lamfaw-lamfaw
@@ Line 220: / Line 220: @@
 CWLAMFAW Bit 0: 0: dzwlamfaw = min (0, dzwwl)
 : dzwlamfaw = min (0, (dzwwl + wkrma)). Default value = 0.
 CWLAMFAW Bit 1: 0: LAMFAW also during torque reduction, e.g. via traction control, engine speed limiter, etc. active
 : no enrichment via LAMFAW during torque reduction (milsol &lt; mifa)
 CWLAMFAW Bit 2: 0: B_ldeffw is always false ---> emergency fuel tank breather also during lamrlmn_w-intervention active
 : B_ldeffw dependent on lamrlmn_w-activation, when B_ldeffw = true, emergency fuel tank breather disabled, i.e. fuel tank breather valve shuts.
 CWLAMFAW Bit 3: 0: Disable driver’s requested lambda activation through catalyst heating enabled
 : Disable driver’s requested lambda activation through catalyst heating not possible
 CWLAMFAW Bit 4: 0: lamfwl_w dependent on B_stend and VZ1-term
 : lamfwl_w not dependent on B_stend and VZ1-term

@@ Line 79: / Line 79: @@
 <u>Lower altitude cut-off threshold:</u>
-fho [phys] = 1 – ((nominal altitude [m] – 250 m ) /10,000) ---> fho[Ink] = Integer (fho[phys]/0.015625) + 1Ink
+fho [phys] = 1 – ((nominal altitude [m] – 250 m ) /10,000)
 ---> fho upper limit [phys] = (1 – fho[Ink] x 0.015625)
@@ Line 181: / Line 183: @@
-Values for lambda
+Values for lambda intervention lamfawkr_w during ignition angle retardation:
 intervention lamfawkr_w during ignition angle retardation:
@@ Line 194: / Line 195: @@
 rl sample points: Group characteristic SRL06GKUB
 Map values: All are 1.0 ---> no weighting active
 KFLAMKRL: dzlamfaw sample points: Group characteristic SDZ0 6GKUB
 rl sample points: Group characteristic SRL06GKUB
 Map values: All are 1.0 ---> lambda intervention not active
 DLAMTANS: Ambient temperature sample points: 50.25, 60, 70.5, 80.25 °C
 Map values: All are 0 ---> lambda intervention not active
 KFLAFWL: Engine speed sample points: Group characteristic SNM06GKUB
@@ Line 210: / Line 208: @@
 ''In the map, delta values are entered, –0.1 ''''--->'' '' lamfwl_w = 0.9!''
 DLAMOB: Engine speed sample points: Group characteristic SNM06GKUB
 Map values: All are 0 ---> no additional enrichment during overboost
@@ Line 217: / Line 214: @@
 RLLAMMN: Engine speed sample points: Group characteristic SNM06GKUB
 Map values: 0% ---> enrichment via LAMRLMN not active
 LAMRLMN: Engine speed sample points: Group characteristic SNM06GKUB
@@ Line 224: / Line 220: @@
 CWLAMFAW Bit 0: 0: dzwlamfaw = min (0, dzwwl)
 : dzwlamfaw = min (0, (dzwwl + wkrma)). Default value = 0.

@@ Line 15: / Line 15: @@
 <u>Function Description</u>
 The function LAMFAW brings about an enrichment of the fuel-air mixture via lamfa_w when the driver demands maximum torque via mrfa_w. This then corresponds to the full-load enrichment. The intervention to the mixture via lamfa_w can be delayed via the delay time TLAFA. During turbocharger overboost, an additional enrichment is applied by a delta-lambda from the characteristic DLAMOB.
@@ Line 35: / Line 36: @@
 <u>Application Notes</u>
 A delay time TLAFA &gt; 0 can only be applied when the mixture intervention via lamfa_w should be delayed.

@@ Line 1: / Line 1: @@
 See the ''funktionsrahmen ''for the following diagrams:
 lamfaw-lamfaw
@@ Line 13: / Line 12: @@
 lamfaw-initialise
 <u>Function Description</u>
 The function LAMFAW brings about an enrichment of the fuel-air mixture via lamfa_w when the driver demands maximum torque via mrfa_w. This then corresponds to the full-load enrichment. The intervention to the mixture via lamfa_w can be delayed via the delay time TLAFA. During turbocharger overboost, an additional enrichment is applied by a delta-lambda from the characteristic DLAMOB.
@@ Line 24: / Line 22: @@
 In this way, a reproducible driving cycle can also be achieved at higher altitudes.
 During a torque reduction, e.g. traction control intervention, engine speed limiter, etc. the enrichment via the map LAMFAW can be disabled by setting CWMFAW Bit 1 = true.
@@ Line 38: / Line 35: @@
 <u>Application Notes</u>
 A delay time TLAFA &gt; 0 can only be applied when the mixture intervention via lamfa_w should be delayed.
@@ Line 82: / Line 77: @@
 <u>Lower altitude cut-off threshold:</u>
 fho [phys] = 1 – ((nominal altitude [m] – 250 m ) /10,000) ---> fho[Ink] = Integer (fho[phys]/0.015625) + 1Ink
 ---> fho upper limit [phys] = (1 – fho[Ink] x 0.015625)
 ---> Altitude upper limit = (1 – fho upper limit [phys]) x 10,000
@@ Line 94: / Line 86: @@
 <u>Upper altitude cut-off threshold:</u>
 fho [phys] = 1 – ((nominal altitude [m] + 250 m)/10,000)
 ---> fho[Ink] = Integer (fho[phys]/0.015625)
 ---> fho lower limit [phys] = fho[Ink] x 0.015625
 ---> Altitude lower limit = (1 – fho lower limit [phys]) x 10,000
 This produces the following values:
 {| border="1"

@@ Line 26: / Line 26: @@
-During a torque reduction, e.g. traction control intervention, engine speed limiter …, the enrichment via the map LAMFAW can be disabled by setting CWMFAW Bit 1 = true.
+During a torque reduction, e.g. traction control intervention, engine speed limiter, etc. the enrichment via the map LAMFAW can be disabled by setting CWMFAW Bit 1 = true.
@@ Line 59: / Line 59: @@
 Neutralization of the function by data:
-LAMFA = 1.0 and DLAMOB = 0.0 ® lamfa_w is then 1.0
+LAMFA = 1.0 and DLAMOB = 0.0 ---> lamfa_w is then 1.0
 The time TLAMFAS must be selected so that no large gradients are caused in the driver’s requested enrichment (typically 240 s).
@@ Line 83: / Line 83: @@
-fho [phys] = 1 – ((nominal altitude [m] – 250 m ) /10000) ® fho[Ink] = Integer (fho[phys]/0.015625) + 1Ink
+fho [phys] = 1 – ((nominal altitude [m] – 250 m ) /10,000) ---> fho[Ink] = Integer (fho[phys]/0.015625) + 1Ink
-® fho upper limit [phys] = (1 – fho[Ink] x 0.015625)
+---> fho upper limit [phys] = (1 – fho[Ink] x 0.015625)
-® Altitude upper limit = (1 – fho upper limit [phys]) x 10000
+---> Altitude upper limit = (1 – fho upper limit [phys]) x 10,000
@@ Line 95: / Line 95: @@
-fho [phys] = 1 – ((nominal altitude [m] + 250 m) /10000)
+fho [phys] = 1 – ((nominal altitude [m] + 250 m)/10,000)
-® fho[Ink] = Integer (fho[phys] /0.015625)
+---> fho[Ink] = Integer (fho[phys]/0.015625)
-® fho lower limit [phys] = fho[Ink] x 0.015625
+---> fho lower limit [phys] = fho[Ink] x 0.015625
-® Altitude lower limit = (1 – fho lower limit [phys]) ´ 10000
+---> Altitude lower limit = (1 – fho lower limit [phys]) x 10,000
@@ Line 155: / Line 155: @@
-Thus, the characteristic LAMFAS is parameterized as follows for the nominal altitude of
+Thus, the characteristic LAMFAS is parameterized as follows for the nominal altitude of 2,200 m:
 ,200 m:
@@ Line 203: / Line 202: @@
 KFLAMKR: Engine speed sample points: Group characteristic SNM06GKUB
 rl sample points: Group characteristic SRL06GKUB
+Map values: All are 1.0 ---> no weighting active
-Map values: All are 1.0 ® no weighting active
 KFLAMKRL: dzlamfaw sample points: Group characteristic SDZ0 6GKUB
 rl sample points: Group characteristic SRL06GKUB
 DLAMTANS: Ambient temperature sample points: 50.25, 60, 70.5, 80.25 °C
 KFLAFWL: Engine speed sample points: Group characteristic SNM06GKUB
 rl sample points: Group characteristic SRL06GKUB
+Map values: All are 0 ---> lambda intervention not active
-Map values: All are 0 ® lambda intervention not active
+''In the map, delta values are entered, –0.1 ''''--->'' '' lamfwl_w = 0.9!''
-−
-−
-''In the map, delta values are entered, –0.1 ''''®'' '' lamfwl_w = 0.9!''
 DLAMOB: Engine speed sample points: Group characteristic SNM06GKUB
+Map values: All are 0 ---> no additional enrichment during overboost
-Map values: All are 0 ® no additional enrichment during overboost
+''In the map, delta values are entered + 0.1 ''''--->'' ''lamfa = lamfaw – 0.1!''
-−
-''In the map, delta values are entered + 0.1 ''''®'' ''lamfa = lamfaw – 0.1!''
 RLLAMMN: Engine speed sample points: Group characteristic SNM06GKUB
 LAMRLMN: Engine speed sample points: Group characteristic SNM06GKUB
 CWLAMFAW Bit 0: 0: dzwlamfaw = min (0, dzwwl)
@@ Line 251: / Line 241: @@
-CWLAMFAW Bit 2: 0: B_ldeffw is always false ® emergency fuel tank breather also during
+CWLAMFAW Bit 2: 0: B_ldeffw is always false ---> emergency fuel tank breather also during lamrlmn_w-intervention active
-lamrlmn_w-intervention active
+: B_ldeffw dependent on lamrlmn_w-activation, when B_ldeffw = true, emergency fuel tank breather disabled, i.e. fuel tank breather valve shuts.
 : B_ldeffw dependent on lamrlmn_w-activation, when B_ldeffw = true,
 emergency fuel tank breather disabled, i.e. fuel tank breather valve shuts.
 CWLAMFAW Bit 3: 0: Disable driver’s requested lambda activation through catalyst heating enabled
 : Disable driver’s requested lambda activation through catalyst heating not possible
 CWLAMFAW Bit 4: 0: lamfwl_w dependent on B_stend and VZ1-term

← Older revision		Revision as of 13:54, 2 June 2011
Line 238:		Line 238:
	''Special thanks to [http://www.nefariousmotorsports.com/forum/index.php/topic,555.0title,.html phila_dot] for translating this section.''		''Special thanks to [http://www.nefariousmotorsports.com/forum/index.php/topic,555.0title,.html phila_dot] for translating this section.''

−	[[Category:~~Motronic~~]]	+	[[Category:ME7]]

← Older revision		Revision as of 13:53, 2 June 2011
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	''Special thanks to [http://www.nefariousmotorsports.com/forum/index.php/topic,555.0title,.html phila_dot] for translating this section.''		''Special thanks to [http://www.nefariousmotorsports.com/forum/index.php/topic,555.0title,.html phila_dot] for translating this section.''
		+
		+	[[Category:Motronic]]

@@ Line 1: / Line 1: @@
-Lambda drivers (LAMFAW)
+''This is a translation from the [[Funktionsrahmen]]''
 LAMFAW Abbreviations
@@ Line 235: / Line 235: @@
   Group characteristic for tmot Interpolation points:      STM08GKUB -15,    0,   20, 40.5,   60,         75, 85.5, 105 C
   Group characteristic for dzwlamfaw Interpolation points: SDZ06GKUB -30,  -20,  -15,  -10,   -5,   0 degree</pre>