Maitiro ekutarisa DBP

Kana iwe uchifungidzira kuparara kweiyo asolute air pressure sensor mune akawanda, vatyairi vanofarira mubvunzo wekuti. sei kutarisa DBP nemaoko ako. Izvi zvinogona kuitwa nenzira mbiri - kushandisa multimeter, pamwe nekushandisa software zvishandiso.

Zvisinei, kuti uite cheki yeDBP ine multimeter, unofanirwa kuva nemagetsi emotokari paruoko kuitira kuti uzive kuti ndeapi mazita ekubatanidza ma multimeter probes.

Zviratidzo zvekutyoka BABA

Nekutadza kuzere kana chidimbu kweiyo asolute pressure sensor (inonzi zvakare MAP sensor, Manifold Absolute Pressure) kunze, kuparara kunozviratidza mune anotevera mamiriro:

• Kunyanya kushandiswa kwemafuta. Izvi zvinokonzerwa nekuti iyo sensor inotumira data isiriyo pamhepo yekumanikidza mune yakawanda yekudyara kune komputa, uye, maererano, control unit inopa murairo wekupa mafuta muhuwandu hukuru kupfuura zvinodiwa.
• Kuderedza simba rejini inopisa mukati. Izvi zvinozviratidza mukumhanya kusina simba uye kusakwana kwekudhonza kana mota ichifamba kukwira uye / kana mune yakatakura.
• Kune kunoramba kuripo kunhuhwirira kwepeturu munzvimbo ye throttle. Izvi zvinokonzerwa nekuti inogara ichifashukira.
• Kusagadzikana kusina basa kumhanya. Kukosha kwavo kunodonha kana kusimuka pasina kudzvanya accelerator pedal, uye pavanenge vachityaira, kukanda kunonzwika uye mota inotsikitsira.
• "Kutadza" kweinjini yekupisa kwemukati mumodhi yenguva pfupi, kureva, kana uchichinja magiya, kutanga mota kubva panzvimbo, kudzoreredza.
• Matambudziko nekutanga injini. Uyezve, zvose "zvinopisa" uye "zvinotonhora".
• Kuumbwa mundangariro yemagetsi control unit kukanganisa nemakodhi p0105, p0106, p0107, p0108 uye p0109.

Zvizhinji zvezviratidzo zvekukundikana zvinotsanangurwa zvakazara uye zvinogona kukonzerwa nezvimwe zvikonzero. Saka, iwe unofanirwa kugara uchiita kuongororwa kwakazara, uye iwe unofanirwa kutanga, kutanga kune zvese, nekutarisa zvikanganiso mukombuta.

Sarudzo yakanaka yekuongorora ndeye-multi-brand autoscanner Rokodil ScanX Pro. Chishandiso chakadaro chinobvumira vese kuverenga zvikanganiso uye kutarisa data kubva kune sensor munguva chaiyo. Kutenda kune KW680 chip uye rutsigiro rweCAN, J1850PWM, J1850VPW, ISO9141 protocol, unogona kuibatanidza kunenge chero mota ine OBD2.

Mashandiro emhedzisiro yekumanikidza anoshanda

Usati watarisa iyo yakakwana yemhepo yekumanikidza sensor, iwe unofanirwa kunzwisisa chimiro chayo uye musimboti wekushanda mune zvakajairika. Izvi zvinofambisa nzira yekuongorora pachayo uye nekururama kwechigumisiro.

Saka, muimba ye sensor kune imba yevacuum ine strain gauge (inopikisa inoshandura kupikisa kwayo magetsi zvichienderana nekugadzirisa) uye membrane, iyo yakabatanidzwa kuburikidza nebhiriji rekubatanidza kumagetsi emotokari yemotokari (zvichida kutaura, kune yemagetsi control unit, ECU). Somugumisiro wekushanda kwejini inopisa mukati, mhepo yemhepo inoshanduka, iyo inogadziriswa ne membrane uye ichienzaniswa nevhavha (saka zita - "absolute" pressure sensor). Ruzivo nezve shanduko yekudzvinyirirwa inoendeswa kune komputa, pahwaro hwekuti iyo control unit inosarudza pamusoro pehuwandu hwemafuta anopihwa kuti aumbe iyo yakakwana mafuta-yemhepo musanganiswa. Iyo yakazara kutenderera kwe sensor ndeyekutevera:

• Pasi pesimba rekumanikidza musiyano, iyo membrane inoremara.
• Iyo yakatsanangurwa deformation ye membrane inogadziriswa ne strain gauge.
• Nekubatsirwa kwekubatanidza bhiriji, kupesana kunoshanduka kunoshandurwa kuva mhepo yakasiyana-siyana, iyo inotumirwa kumagetsi ekugadzirisa magetsi.
• Kubva pane ruzivo rwakagamuchirwa, ECU inogadzirisa huwandu hwemafuta anopiwa kune majekiseni.

Mazuva ano absolute pressure sensors akabatana nekombuta achishandisa waya nhatu - simba, pasi uye chiratidzo waya. Saizvozvo, kukosha kwekusimbisa kunowanzo kudzika kune chokwadi chekuti kuitira uchishandisa multimeter, tarisa kukosha kwekupokana uye voltage pane dzakatarwa waya pasi pemamiriro akasiyana ekushanda einjini yekupisa yemukati. zvakazara uye sensor kureva. Mamwe masensa eMAP ane waya ina. Kuwedzera kune aya matatu waya, yechina inowedzerwa kwavari, kuburikidza neiyo ruzivo nezve tembiricha yemhepo mune yakawanda yekudyara inotumirwa.

Mumotokari zhinji, iyo mhedziso yekumanikidza sensor inowanikwa chaizvo pane yekudyara manifold yakakodzera. Pamotokari dzechikuru, inogona kunge iri pamitsetse yemhepo inochinjika uye yakamisikidzwa kumutumbi wemotokari. Muchiitiko chekugadzirisa injini ye turbocharged, DBP inowanzoiswa pamhepo ducts.

Kana dzvinyiriro muhuwandu hwekutora yakadzikira, ipapo chiratidzo chemagetsi chinobuda ne sensor chichavawo chakaderera, uye zvinopesana, sezvo kudzvanywa kunowedzera, iyo inobuda voltage inofambiswa sechiratidzo kubva kuDBP kuenda kuECU inowedzerawo. Saka, neine damper yakazaruka yakazara, kureva, pakaderera pasi (inenge 20 kPa, yakasiyana nemichina yakasiyana), iyo chiratidzo chemagetsi chichava muhuwandu hwe1 ... 1,5 Volts. Iine damper yakavharwa, kureva, pakumanikidzwa kukuru (inenge 110 kPa uye pamusoro), iyo inopindirana voltage kukosha ichava 4,6 ... 4,8 Volts.

Kutarisa iyo DBP sensor

Kutarisa iyo yakakwana yekumanikidza sensor mune yakawanda inodzika kune chokwadi chekuti iwe unofanirwa kutanga waona kuti yakachena, uye, nekudaro, kunzwa kwekuchinja kwekuyerera kwemhepo, uye wozoona kuramba kwayo uye kubuda kwevoltage panguva kushanda kweinjini yekupisa mukati.

Kuchenesa iyo yakakwana yekumanikidza sensor

Ndapota cherechedza kuti semugumisiro wekushanda kwayo, mhedziso yekumanikidzika inonzwa zvishoma nezvishoma yakavharwa netsvina, iyo inovhara kushanda kwakajairika kwe membrane, iyo inogona kukonzera kukanganisa kwechikamu cheDBP. Naizvozvo, usati watarisa sensor, inofanirwa kubviswa uye kucheneswa.

Kuita kuchenesa, sensor inofanirwa kubviswa pachigaro chayo. Zvichienderana nekugadzirwa uye modhi yemotokari, nzira dzekuisa uye nzvimbo dzichasiyana. Turbocharged ICEs anowanzo ane maviri absolute pressure sensors, imwe mune yakawanda yekudyara, imwe iri pa turbine. Kazhinji sensor inosungirirwa neimwe kana maviri mabhaudhi anokwira.

Kucheneswa kwe sensor kunofanirwa kuitwa nekuchenjerera, uchishandisa yakakosha carb cleaners kana zvakafanana kuchenesa. Mukuita kuchenesa, unoda kuchenesa muviri wayo, pamwe chete nevanosangana. Muchiitiko ichi, zvakakosha kuti usakuvadza mhete yekuisa chisimbiso, zvinhu zveimba, zvisungo uye membrane. Iwe unongoda kusasa zvishoma zvekuchenesa mumiririri mukati uye uidururire zvakare pamwe chete netsvina.

Kazhinji, kucheneswa kwakapusa kwakadai kunotodzoreredza kushanda kweiyo MAP sensor uye hapana chikonzero chekuita mamwe manipulations. Saka mushure mekuchenesa, iwe unogona kuisa iyo air pressure sensor panzvimbo uye kutarisa kushanda kweinjini yekupisa mukati. Kana zvisina kubatsira, saka zvakakodzera kuenderera mberi nekutarisa DBP nemuongorori.

Kutarisa iyo yakakwana yekumanikidza sensor ine multimeter

Kuti utarise, tsvaga kubva mubhuku rekugadzirisa kuti ndeipi waya uye kubata kune basa rei mune imwe sensor, ndiko kuti, pane simba, pasi uye waya dzechiratidzo (chiratidzo muchiitiko chechina-waya sensor).

kuti uone kuti ungatarisa sei mhedziso yekumanikidza sensor ine multimeter, iwe chekutanga unofanirwa kuve nechokwadi chekuti wiring pakati pekombuta uye sensor pachayo yakasimba uye haina kupfupika chero kupi, nekuti iko kurongeka kwemhedzisiro kuchaenderana neizvi. . Izvi zvinoitwa zvakare uchishandisa yemagetsi multimeter. Nezvo, unofanirwa kutarisa zvose kuvimbika kwetambo dzekuputika uye kutendeseka kwekudzivirira (ona kukosha kwekudzivirira kwekudzivirira pamatare ega ega).

Funga nezvekushandiswa kwecheki inoenderana nemuenzaniso wemotokari yeChevrolet Lacetti. Ane waya nhatu dzakakodzera sensor - simba, pasi uye chiratidzo. Iyo chiratidzo waya inoenda yakananga kune yemagetsi control unit. "Misa" yakabatanidzwa kune minuses yemamwe ma sensor - tembiricha sensor yemhepo inopinda mumasilinda uye sensor okisijeni. Iyo yekugovera waya yakabatana kune yekumanikidza sensor mumhepo inogadzirisa system. Imwezve cheki yeDBP sensor inoitwa zvinoenderana neinotevera algorithm:

• Iwe unofanirwa kubvisa iyo negative terminal kubva mubhatiri.
• Bvisa chivharo kubva kune yemagetsi control unit. Kana tikafunga nezveLacetti, saka mota iyi inayo pasi pehodhi kuruboshwe, pedyo nebhatiri.
• Bvisa chinongedzo kubva kune absolute pressure sensor.
• Seta iyo yemagetsi multimeter kuyera kuramba kwemagetsi nehuwandu hunosvika mazana maviri ohms (zvichienderana neiyo chaiyo modhi yemultimeter).
• Tarisa kukosha kwekupokana kweiyo multimeter probes nekungozvibatanidza pamwechete. Iyo skrini icharatidza kukosha kwekupokana kwavo, iyo inozoda kuverengerwa pakuita bvunzo (kazhinji inenge 1 ohm).
• Imwe multimeter probe inofanirwa kuve yakabatana nepini nhamba 13 pane ECU block. Yechipiri probe yakafanana yakabatana kune yekutanga kuonana kweiyo sensor block. iyi ndiyo nzira inonzi waya yepasi. Kana iyo waya isina kusimba uye kuvharwa kwayo hakuna kukuvadzwa, ipapo kukosha kwekupokana pachiratidziro chemudziyo kunenge kuri 1 ... 2 Ohm.
• inotevera iwe unoda kudhonza harnesses newaya. Izvi zvinoitwa kuitira kuve nechokwadi chekuti waya haina kukuvadzwa uye inoshandura kuramba kwayo mota ichifamba. Muchiitiko ichi, kuverenga pa-multimeter hakufaniri kuchinja uye kuva pamwero wakafanana ne-static.
• Iine imwe probe, batanidza kune yekubata nhamba 50 pane block block, uye neyechipiri probe, batanidza kune yechitatu kuonana pane sensor block. Iyi ndiyo nzira iyo tambo yemagetsi "mhete", iyo iyo standard 5 volts inopiwa kune sensor.
• Kana iyo waya yakasimba uye isina kukuvadzwa, ipapo kukosha kwekupokana pane multimeter chidzitiro kuchavawo anenge 1 ... 2 Ohm. Saizvozvo, iwe unofanirwa kudhonza harness kuitira kudzivirira kukanganisa kune waya mumukurukuri.
• Batanidza imwe probe kupinza nhamba 75 pane ECU block, uye yechipiri kune iyo chiratidzo chekubata, ndiko kuti, yekubata nhamba mbiri pane sensor block (pakati).
• Saizvozvowo, kana tambo isina kukuvadzwa, ipapo kushorwa kwetambo kunofanira kunge kune 1 ... 2 ohms. iwe unofanirwawo kudhonza harness newaya kuitira kuti uve nechokwadi chekuti kubata uye kuvhara kwetambo kwakavimbika.

Mushure mekutarisa kutendeseka kwewaya uye kuvhara kwavo, unofanirwa kutarisa kana simba richiuya kune sensor kubva kune yemagetsi control unit (inopa 5 Volts). Kuti uite izvi, unofanirwa kubatanidza bhuroka yekombuta kune control unit (iise pachigaro chayo). Mushure meizvozvo, tinodzosera iyo terminal pabhatiri uye tobatidza iyo ignition pasina kutanga injini yekupisa yemukati. Nekuferefeta kweiyo multimeter, yakachinjirwa kuDC voltage kuyerwa modhi, tinobata ma sensor contacts - kugovera uye "pasi". Kana simba richipihwa, ipapo multimeter icharatidza kukosha kwe4,8 ... 4,9 volts.

Saizvozvo, voltage pakati pechiratidzo waya uye "pasi" inotariswa. Izvi zvisati zvaitika, iwe unofanirwa kutanga injini yekupisa mukati. ipapo iwe unofanirwa kushandura maprobes kune anoenderana mabatiro pane sensor. Kana iyo sensor yakarongeka, saka iyo multimeter icharatidza ruzivo nezve voltage pane chiratidzo chetambo muyero kubva 0,5 kusvika 4,8 Volts. Low voltage inoenderana nekusashanda kumhanya kweinjini yekupisa kwemukati, uye yakakwira voltage inoenderana nekumhanya kweinjini yekupisa kwemukati.

Ndapota cherechedza kuti magetsi emagetsi (0 uye 5 Volts) pane multimeter mumamiriro ekushanda haazombovi. Izvi zvinoitwa zvakananga kuongorora mamiriro eDBP. Kana iyo voltage iri zero, ipapo iyo yemagetsi control unit inoburitsa kukanganisa p0107 - low voltage, kureva, waya yekuputsika. Kana iyo voltage yakakwira, saka ECU ichaona izvi sepfupi redunhu - kukanganisa p0108.

Sirinji bvunzo

Iwe unogona kutarisa kushanda kweabsolute pressure sensor uchishandisa sirinji inoraswa yekurapa ine huwandu hwemakumi maviri "cubes". zvakare, kuti uonekwe, iwe unozoda hose yakavharwa, iyo inofanirwa kunge yakabatana neiyo dismantled sensor uye zvakananga kune sirinji mutsipa.

Zviri nyore kushandisa ignition correction angle vacuum hose yemotokari dzeVAZ dzine carburetor ICE.

Saizvozvo, kuti utarise iyo DBP, unofanirwa kubvisa iyo yakakwana yekumanikidza sensor kubva pachigaro chayo, asi siya chip yakabatana nayo. Zvakanakisa kupinza simbi clip mumatanho, uye kutobatanidza probes (kana "makarwe") ye multimeter kwavari. Kuedza kwesimba kunofanira kuitwa nenzira imwechete sezvakatsanangurwa muchikamu chakapfuura. Iko kukosha kwesimba kunofanirwa kunge kuri mukati me4,8 ... 5,2 Volts.

Kuti utarise chiratidzo kubva kune sensor, unofanirwa kubatidza moto wemoto, asi usatanga injini yekupisa yemukati. Pane yakajairika atmospheric pressure, kukosha kwevoltage pawaya yechiratidzo kuchasvika 4,5 volts. Muchiitiko ichi, sirinji inofanira kunge iri mu "kusvinwa kunze", kureva kuti, piston yayo inofanira kunyudzwa zvachose mumuviri wesirinji. mberi, kutarisa, unofanira kudhonza piston kubva sirinji. Kana iyo sensor iri kushanda, ipapo voltage ichaderera. Nenzira yakanaka, neine vacuum yakasimba, kukosha kwevheji kunodonha kusvika kuhuwandu hwe 0,5 volts. Kana iyo voltage inodonha chete kusvika 1,5 ... 2 Volts uye isingawire pasi, sensor haina kunaka.

Ndokumbira utarise kuti iyo mhedziso yekumanikidza sensor, kunyangwe yakavimbika michina, haina kusimba. Izvo hazvigadzirike. Saizvozvo, kana sensor ikatadza, inofanirwa kutsiviwa neitsva.