Najbolj "neumni" izumi v avtomobilski industriji

Hondi

Guru
18. avg 2007
3.693
532
113
Mogoče je že bilo govora o tem: včeraj sem naredil 630 km takorekoč v kosu in po AC. Torej se je motor zelo dobro nadihal. Pridem domov, parkiram v garaži in on začne z regeneracijo dpf. WTF? Pi**da, a nisi imel cel dan časa za to sranje? VW grupa 2.0 tdi.
kako veš, da je začel z regen, ne pa končal?
oz. pač če je pregreto vedno laufa ventilator na dvojko
 

sajkek

Guru
16. mar 2008
38.220
12.765
113
a ni tako da regen načelno laufa pri like 100km/h plus. , da ve da je na kao AC... ne v nekem naselju ali doma v garazi? Vsaj zdi se mi da je to eden od pogojev. mogoče pri renomiranih znamkah...
 

MrDaco

Guru
11. sep 2007
13.272
7.421
113
Torej če se z redomiranimi znamkami voziš en teden po mestu, pa malo otroke furaš v šolo, pa babico k maši, potem ostaneš brez regeneracije? Malo morgen ja...
 
  • Wow
Reactions: sajkek

sajkek

Guru
16. mar 2008
38.220
12.765
113
Tako zgleda očitno pri modernem avtu
The start of Diesel Particulate Filter (DPF) regeneration is primarily triggered by two main factors, depending on the type of regeneration:



1. The Main Trigger: Soot Load in the Filter (For Active Regeneration)​



The most common trigger for regeneration is when the DPF becomes full of trapped soot.

  • Soot Accumulation: The DPF captures soot from the engine's exhaust. A differential pressure sensor measures the pressure difference before and after the filter. As the filter fills up with soot, the pressure difference (or "back-pressure") increases.




  • Engine Control Unit (ECU) Threshold: When the soot load reaches a pre-determined level (often around 45% full), the vehicle's ECU detects the increased back-pressure and automatically initiates an Active Regeneration cycle to burn the soot off.


  • Warning Light: On many vehicles, if passive regeneration is not possible and the soot load is too high for the vehicle to clean itself under current driving conditions, a DPF warning light will illuminate on the dashboard, signaling the need for the driver to take action (usually by driving at highway speeds).




2. The Conditions for Passive Regeneration (Self-Cleaning)​



Passive regeneration is the continuous self-cleaning process that happens naturally when certain conditions are met:




  • High Exhaust Temperature: The soot burns off when the exhaust temperature is high enough, typically between 350∘C and 500∘C.


  • Sustained Driving: This temperature is usually achieved during longer journeys on the highway or at higher road speeds (e.g., above 60 km/h or 40 mph) and under a high enough engine load.

If your normal driving pattern (e.g., city driving, short trips) doesn't allow the exhaust to get hot enough for passive regeneration, the soot will build up until the ECU forces an active regeneration.
 

shift

Guru
20. jul 2007
10.178
2.710
113
za šankom
Po domače povedano, avto bolikurac kje si ti in kako voziš ampak ko sem so doseženi parametri bo delal regeneracijo, če je nekajkrat zapovrstjo prekineš ko ugasneš avto, dobiš opozorilo da je regeneracija v teku in da nadaljuješ vožnjo, ko se zaključi opozorilo izgine
 

MrDaco

Guru
11. sep 2007
13.272
7.421
113
Tako zgleda očitno pri modernem avtu
The start of Diesel Particulate Filter (DPF) regeneration is primarily triggered by two main factors, depending on the type of regeneration:



1. The Main Trigger: Soot Load in the Filter (For Active Regeneration)​



The most common trigger for regeneration is when the DPF becomes full of trapped soot.

  • Soot Accumulation: The DPF captures soot from the engine's exhaust. A differential pressure sensor measures the pressure difference before and after the filter. As the filter fills up with soot, the pressure difference (or "back-pressure") increases.




  • Engine Control Unit (ECU) Threshold: When the soot load reaches a pre-determined level (often around 45% full), the vehicle's ECU detects the increased back-pressure and automatically initiates an Active Regeneration cycle to burn the soot off.


  • Warning Light: On many vehicles, if passive regeneration is not possible and the soot load is too high for the vehicle to clean itself under current driving conditions, a DPF warning light will illuminate on the dashboard, signaling the need for the driver to take action (usually by driving at highway speeds).



2. The Conditions for Passive Regeneration (Self-Cleaning)​



Passive regeneration is the continuous self-cleaning process that happens naturally when certain conditions are met:




  • High Exhaust Temperature: The soot burns off when the exhaust temperature is high enough, typically between 350∘C and 500∘C.


  • Sustained Driving: This temperature is usually achieved during longer journeys on the highway or at higher road speeds (e.g., above 60 km/h or 40 mph) and under a high enough engine load.
If your normal driving pattern (e.g., city driving, short trips) doesn't allow the exhaust to get hot enough for passive regeneration, the soot will build up until the ECU forces an active regeneration.
No vidiš.. nikjer ni pogoja o vožnji nad 100kmh.
 

Pepe

Guru
20. sep 2007
13.936
5.528
113
Meni je velikokrat delalo tako na regionalki kot na avtocesti, ker sem pri enem avtu to takoj zaznal po sumljivo veliki trenutni porabi. Drug tega ni znal pokazati pri trenutni porabi, se je pa vedelo pri tankanju, če je več odstopalo od stanja po BC. Če sem imel veliko relacijske vožnje, je bila regeneracija poredkeje kot na 600 km. Ko sem kupil prvega z dpf, sem presenečen ugasnil avto na semaforju, ko je kazal porabo 5 litrov na uro. No, potem sem premislil, kaj mi je hotel povedati ...
Pri današnjih avtih in gneči na avtocestah težko govorimo o neki "maksimalni" obremenitvi na avtocesti. Avti imajo kljuset pod havbo precej več kot jih rabimo, da se peljemo konstantno do ~150 km / h. Kaj več pa jaz nikoli ne doživim, da bi bilo dalj časa možno. Zato pa je potrebno kar manj kot 100 konjev, torej pri nekem dizlu mogoče dobro polovico maksimalne moči. Mogoče se pri konstantnem izkoriščanju 80 % in več maksimalne moče res ne bi šel regeneracije, ampak potem smo pri hitrostih krepko nad 90 % maksimalne, ker je zračni upor precej neusmiljena reč.
 

jezek

Guru
24. jul 2008
4.958
2.141
113
Ce se prav spomnim je za bluehdi nekje pisalo da v 6. prestavi in nad doloceno hitrostjo prekine. Regen pri gasu do daske v 6. v vrhniski klanec gotovo ni blagodejen
 

jezek

Guru
24. jul 2008
4.958
2.141
113
Meni je 10 let nazaj 2.0tdi delal ravno v mestu. Navadno ko sem priletel iz lj-lendava-lj (do daske) je zacelo na prvem semaforju. Ali pa naslednje jutro po 20min voznje po mestu. Seveda ga ni nikoli dokoncal...