Mokhoa oa ho Lekola Sensor ea MAP ka Multimeter (Mohato ka Mohato Tataiso)

Sensor ea "manifold absolute absolute" e kenang (MAP) e lemoha khatello ea moea ka har'a mefuta e mengata ea ho noa 'me e lumella koloi ho fetola tekanyo ea moea / mafura. Ha sensor ea MAP e le mpe, e ka nyenyefatsa ts'ebetso ea enjine kapa ea etsa hore leseli la enjine ea cheke le tle. E sebelisa vacuum ho laola khatello ea mali ka makhetlo a mangata. Ha khatello e phahame, e theola moea oa vacuum le motlakase o tsoang. Ha sekoti se phahame 'me khatello e theohile, ke moo motlakase o leng holimo. Joale u leka sensor ea MAP joang ka DMM?

Tataiso ena ea mohato ka mohato e tla u ruta mokhoa oa ho leka li-sensor tsa MAP ka li-DMM.

Sensor ea MAP e etsa eng?

Sensor ea MAP e lekanya boholo ba khatello ea moea ka tekanyo ea vacuum ka har'a mefuta e mengata ea ho kenya, ebang ke ka ho toba kapa ka hose ea vacuum. Khatello e ntan'o fetoloa lets'oao la motlakase, leo sensor e le romellang mojuleng oa taolo ea matla (PCM), komporo ea koloi ea hau. (1)

Sensor e hloka lets'oao la referense la 5-volt ho tsoa komporong ho khutlisa ts'ebetso. Liphetoho tsa vacuum kapa khatello ea moea ka har'a mefuta e mengata ea ho kenya li fetola khanyetso ea motlakase ea kutlo. Sena se ka eketsa kapa sa fokotsa matla a lets'oao komporong. PCM e fetola phepelo ea mafura a silindara le nako ea ho tima e ipapisitse le mojaro oa hajoale le lebelo la enjene e sebelisa tlhahisoleseling ho tsoa ho sensor ea MAP le li-sensor tse ling.

Mokhoa oa ho lekola sensor ea 'mapa ka multimeter

No. 1. Tlhahlobo ea pele

Etsa tlhahlobo pele u lekola sensor ea MAP. Ho itšetlehile ka setupong sa hau, sensor e hokahane le mefuta e mengata ea ho noa ka hose ea rabara; ho seng joalo, e hokahana ka ho toba le lesoba.

Ha mathata a hlaha, ho ka etsahala hore ebe ho na le molato oa hose ea vacuum. Li-sensor le li-hose tse ka phaposing ea enjene li pepesehetse mocheso o phahameng, ho ka ba le tšilafalo ea oli le peterole, le ho thothomela ho ka sitisang tšebetso ea tsona.

Hlahloba hose ea ho hula bakeng sa:

• sotha
• maqhama a fokolang
• mapetso
• hlahala
• nolofatsa
• thatafatsa

Ebe u hlahloba ntlo ea sensor bakeng sa ts'enyehelo 'me u netefatse hore sehokelo sa motlakase se tiile ebile se hloekile mme mohala o sebetsa hantle.

Mohala oa fatše, terata ea mats'oao, le terata ea motlakase ke lithapo tse tharo tsa bohlokoahali bakeng sa sensor ea koloi ea MAP. Leha ho le joalo, li-sensor tse ling tsa MAP li na le mohala oa bone oa lets'oao bakeng sa molaoli oa mocheso oa moea o kenang.

Ho ne ho hlokahala hore lithapo tseo tse tharo li sebetse hantle. Ho bohlokoa haholo ho hlahloba mohala o mong le o mong ka bonngoe haeba sensor e fosahetse.

No. 2. Teko ea terata ea matla

• Beha litlhophiso tsa voltmeter ho multimeter.
• Bulela konopo ea ho tima.
• Hokela lead lead e khubelu ea multimeter ho MAP sensor power lead (hot).
• Hokela lead lead e ntšo ea multimeter ho sehokelo sa betri fatše.
• Matla a hlahang e lokela ho ba hoo e ka bang 5 volts.

No.3. Teko ea terata ea matšoao

• Bulela konopo ea ho tima.
• Beha li-setting tsa voltmeter ho multimeter ea digital.
• Hokela terata e khubelu ea multimeter ho terata ea matšoao.
• Kopanya lead lead ea multimeter fatše.
• Kaha ha ho na khatello ea moea, mohala oa lets'oao o tla bala hoo e ka bang 5 volts ha ho khantša 'me enjene e tima.
• Haeba terata ea pontšo e ntle, multimeter e lokela ho bonts'a hoo e ka bang 1-2 volts ha enjene e buletsoe. Boleng ba terata ea pontšo bo fetoha hobane moea o qala ho tsamaea ka har'a manifold a kenang.

No. 4. Teko ea terata e fatše

• Dula o tuka.
• Kenya multimeter ho sete ea li-continuity testers.
• Hokela likarolo tse peli tsa DMM.
• Ka lebaka la ho tsoela pele, o lokela ho utloa molumo oa molumo ha lithapo ka bobeli li hokahane.
• Ebe o kopanya lead lead ea multimeter ho terata ea fatše ea sensor ea MAP.
• Hokela lead lead e ntšo ea multimeter ho sehokelo sa betri fatše.
• Haeba u utloa molumo oa molumo, potoloho ea fatše e sebetsa hantle.

No. 5. Teko ea mohala oa mocheso oa moea o kenang

• Beha multimeter ho mokhoa oa voltmeter.
• Bulela konopo ea ho tima.
• Hokela terata e khubelu ea multimeter ho mohala oa lets'oao oa sensor ea mocheso oa moea o kenang.
• Kopanya lead lead ea multimeter fatše.
• Boleng ba sensor ea IAT bo lokela ho ba hoo e ka bang 1.6 volts ka mocheso oa moea oa likhato tse 36 tsa Celsius. (2)

Matšoao a Sensor e hlolehileng ea MAP

U ka tseba joang haeba u na le sensor e mpe ea MAP? Tse latelang ke lipotso tsa bohlokoa tseo u lokelang ho li ela hloko:

Moruo oa mafura ha o fihle maemong a tloaelehileng

Haeba ECM e lemoha boemo bo tlase kapa bo se nang moea, e nka hore enjene e tlas'a mojaro, e lahlela peterole e eketsehileng, 'me e ntšetsa pele nako ea ho tima. Sena se fella ka lik'hilomithara tse ngata tsa khase, ho se sebetse hantle ha mafura 'me, maemong a feteletseng, ho phatloha (ho sa tloaelehang haholo).

Matla a sa lekaneng 

Ha ECM e bona vacuum e phahameng, e nka hore mojaro oa enjene o tlase, e fokotsa ente ea mafura, 'me e chechisa nako ea ho chesa. Ho phaella moo, tšebeliso ea mafura e tla fokotseha, eo ho bonahalang eka ke ntho e ntle. Leha ho le joalo, haeba peterole e sa lekaneng e chesoa, enjene e ka 'na ea haelloa ke ho potlakisa le ho khanna matla.

Ho thata ho qala

Ka hona, motsoako o ruileng ka tsela e sa tloaelehang kapa o se nang mafura o etsa hore ho be thata ho qala enjene. U na le bothata ka sensor ea MAP haeba u ka qala enjene feela ha leoto la hau le le holim'a pedal ea accelerator.

Teko ea tlhahiso e hlotsoe

Sensor e mpe ea MAP e ka eketsa tlhahiso hobane ente ea mafura ha e lekane le boima ba enjine. Tšebeliso e feteletseng ea mafura e lebisa ho eketseha ha tlhahiso ea hydrocarbon (HC) le carbon monoxide (CO), ha tšebeliso e sa lekaneng ea mafura e lebisa ho eketseha ha tlhahiso ea nitrogen oxide (NOx).

Sheba tse ling tsa lingoliloeng tsa rona tse ka tlase.

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• Mokhoa oa ho lekola yuniti ea taolo ea mollo ka multimeter

likhothaletso

(1) PCM - https://auto.howstuffworks.com/engine-control-module.htm

(2) mocheso - https://www.britannica.com/science/temperature