BOSCH LSM-11 vs WB sonda

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  • FiatGroup
    CBC Senator
    • 11.06.2005
    • 228
    • Rijeka

    BOSCH LSM-11 vs WB sonda

    BOSCH LSM-11

    Sto mislite o ovoj sondi premda nije WB a koristi se u nekom od timova "F1"..
    Zasto ce nam onda WB sonde ako je ova "najboljsha"

    razlozi zato se LSM11 koristi a zasto WB?

    Lsm11 vs WB sonde?
    *************************************
    The best is the enemy of the good
    The proof of the pudding is in the eating
    *************************************
  • Valent Vudriga
    CBC Senator XXL
    • 02.04.2005
    • 2778
    • USA

    #2
    BOSCH LSM-11
    Kakva je to sonda?

    Comment

    • uglavnom.bezopasni
      - 42 -
      • 03.02.2005
      • 2235
      • Novi Sad

      #3
      Let's be honest, the LSM-11 (Bosch part #0 258 104 002) is not a wideband sensor.
      Fifteen years of research he'd filed from one planet alone and they'd cut it to two words. "Mostly Harmless."
      11.04. 0:12 #2
      Rule #51: Sometimes — You're Wrong!

      Comment

      • FiatGroup
        CBC Senator
        • 11.06.2005
        • 228
        • Rijeka

        #4
        znam... ali azsto ej koriste na nekim vrlo skupocjenim uredjajima.. za mjerenje A/F ...
        zasto en WB sonde?
        u cemu je kvaka?
        *************************************
        The best is the enemy of the good
        The proof of the pudding is in the eating
        *************************************

        Comment

        • Nenad
          CBC Senator XXL
          • 06.01.2005
          • 1364
          • BBgd/Mow

          #5
          Sve sto znam o tom senzoru je da radi u opsegu od AFR 10:1 do 36:1 e sada da li su ovi pokazatelji uobicajeni u narrow band senzorima nisam siguran.
          Jos nesto, ova sonda je vrlo otporna na goriva sa visokim % Olova.

          Ne znam dal' ce ista pomoci http://www.bosch-motorsport.de/pdf/sens ... LSM_11.pdf

          http://www.bosch-motorsport.de/content/ ... l/2886.htm
          Boost or bust...

          Comment

          • 206
            Admin od ispočetka :)
            • 09.12.2004
            • 9548
            • Beograd
            • 206

            #6
            Ne znam sta bi ova sonda trebala da radi, ali ova koju ja trenutno koristim je WB sonda ista kao na, recimo, Audijima ili VW-ima, kosta 25 EUR, i meri od AF 10 do 25, ne znam zasto bi mi trebalo ista vise od toga?
            The difference between men and boys is the price of their toys

            Comment

            • ale944
              CBC Senator XXL
              • 20.03.2006
              • 1457
              • Beograd

              #7
              ocigledno nije u pitanju sam opseg vec robusnost sonde i njena otpornost na razlicite uticaje prilikom izlaganja izduvnim gasovima...
              jos ako joj ne treba specijalni kontroler kao za wb sonde onda eto zasto je dobro resenje
              http://www.novaspeed.rs CHIPTUNING & FAP/DPF Off

              Comment

              • Gumetina
                Banovan
                • 12.12.2004
                • 1082
                • Novi Sad

                #8
                wb zahteva kontroler koji nit je jednostavan nit je jeftin.

                e sad par me stvari buni, sa bosch motorsport sajta skinuo sam lsm 11 -rm (improved racing ...) u cijem pdf-u lepo pise wideband lambda...

                A posle sam skinuo i pdf "sensorkatalog.....pdf"

                u kojem jasno stoji 0.2 - 0.8v...

                u buli sam, u onim pdf-ovima pise lmbda od 0.68-1.32 a u ovom drugom 1 - 2...

                sta je istina?

                malo je nejasno...

                a interesantna je i cena od 220e (na sajtu)

                Comment

                • 206
                  Admin od ispočetka :)
                  • 09.12.2004
                  • 9548
                  • Beograd
                  • 206

                  #9


                  Sonda, konfigurabilan kontroler sa dva izlaza, softver i kabl - 199$.

                  Ne znam sta bi jos ikome bilo potrebno osim ovoga...

                  Ne znam koliko da je otporan taj senzor, ovaj LC-a sve i da ti crkne sama sonda, kosta 25 EUR da se zameni.
                  The difference between men and boys is the price of their toys

                  Comment

                  • FiatGroup
                    CBC Senator
                    • 11.06.2005
                    • 228
                    • Rijeka

                    #10
                    2 Nenad... vjerojatno je jedan od razloga spomenuta otpornost...
                    postavio sam pitanje ali nisam dobio jos dovoljno dobar razlog zasto?
                    jer koliko sam primjetio mnogo brendova kao sto su autronic koristi ovu sondu..
                    Da nije u igri spomenuta otpornost i sirina pojasa LSM-11??!

                    Sonda je u australiji svega 258AU$... u njemckoj je to ipak preskupo..
                    *************************************
                    The best is the enemy of the good
                    The proof of the pudding is in the eating
                    *************************************

                    Comment


                    • #11
                      LSM 11 "A lambda LSM 11 standard production sensor, manufactured in a DR-25 sleeve with a series connector"
                      LSM 11-RM "An individually selected wide-band LSM 11 lambda sensor. It is specially modified for motorsport use, manufactured in a Viton sleeve. Various connector options are available"
                      LSU oznaku bi trebale da imaju Bosch WB sonde

                      karakteristike senzora su po onome sto pise u pdf fajlovima identicne za oba senzora s tim sto RM varijanata ima u naslovu Wide-Band,a standardna verzija nije tako oznacena i LSM 11-RM kosta +60% na cenu standardne verzije

                      Lambda opseg je u oba slucaja isti 0.68 - 1.32 dakle A/F 10:1 do 19.4:1
                      To je karakteristika wide-band senzora,ali takodje stoji da je precizost za
                      lambda < 1 manja od 1.5% upravo opseg (rich mixture) na koji se ide ako se traze maksimalne performanse.(A/F 12:1 - 13.5:1)

                      http://www.bosch-motorsport.de/content/ ... l/2886.htm
                      Tamo pise da su te sonde u principu pravljene za Lambda=0.9

                      element od ZrO2 u oba slucaja.
                      Temperaturni opseg isti 250C-850C



                      Otpornost na sta? Olovo? Kakvo gorivo koristi F1 i sta spada u dozvoljene
                      aditive?
                      http://www.formula1.com/insight/technic ... 1/646.html

                      Ne znam da li high-performance masine ili ultra kao F1 motor imaju veci procenat misfire-a to je nesto sto bi moglo da utice na ocitavanja i vek trajanja senzora

                      Comment

                      • FiatGroup
                        CBC Senator
                        • 11.06.2005
                        • 228
                        • Rijeka

                        #12
                        Ipak mislim da nije bez razloga LSM 11 nacinjena kao WB (sirokopojasna) sonda..

                        Vjerojatno je kvaka u "pumping cell type systemu"

                        Nisma dovoljno informiran u cemu je razlika sitema?

                        Zasto postoje dva sistema za wb sonde?
                        *************************************
                        The best is the enemy of the good
                        The proof of the pudding is in the eating
                        *************************************

                        Comment


                        • #13
                          pumping cell je samo jedan deo konstrukcije WB senzora koja je vrlo slozena (slika) Klasican senzor to nema.
                          U temi gde je pisano o naponu lambda senzora imas slike kako izgleda klasican senzor i princip generisanja napona.Pocni od strane 2!

                          LSM 11 je po onome sto se vidi klasican senzor.Podaci o A/F opsegu govore nesto drugo,ali podatak o accuracy <1.5% @ λ < 1 to baca u vodu.Stvarno je nejasno.

                          Fuel additives za LSM 11 : Sulphur(weight) 0.2% , Lead 0.6 g/l
                          -II- za LSU 4.2 (definitivno WB senzor) : po DIN EN 228 standardu za komercijalno dostupan bezolovni benzin
                          Mozda se tu krije neka heavy-duty karakteristika ili prednost LSM 11


                          (Samo cu kopirati tekst koji se odnosi na sliku iz jednog SAE dokumenta)

                          Wide band λ oxygen sensor
                          This sensor expands on the principle of the Nernst unit (two-state sensor function,klasican senzor) by incorporating a second chamber, the pump cell (see Figure 7). It is through this small slot in this pump cell that the exhaust gas enters the actual monitoring chamber (diffusion gap) in the Nernst cell. This configuration contrasts with the layout of the two-state sensor by maintaining a consistently stoichiometric air/fuel ratio in the chamber.Electronic circuitry modulates the voltage supply to maintain the composition of the gas in the monitoring chamber at a consistent λ equals one. The pump cell corresponds to lean
                          exhaust by discharging oxygen from the diffusion gap to the outside, but reacts to rich exhaust by pumping oxygen from the surrounding exhaust gas into the diffusion gap, reversing the direction of the current. Because the pumping current is also proportional to the oxygen concentration and/or oxygen deficiency,it serves as an index of the excess air-factor of the exhaust gas. An integral heater unit ensures an operating
                          temperature of at least 600oC.The two-state unit uses the voltage at the Nernst cell as a direct measurement signal while the wide band sensor employs special processing and control circuitry to set the pumping current. This current is then monitored and measured as an index of the exhaust gas?s excess-air factor. Because sensor operation is no longer dependent on the step function response of the Nernst cell, air factors ranging from 0.7 to 4 can be monitored as a continuous progression. Thus λ control of the engine can proceed on a reference spectrum instead of depending solely upon a single point.

                          Comment

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