{"id":3249,"date":"2023-02-15T07:47:40","date_gmt":"2023-02-15T05:47:40","guid":{"rendered":"https:\/\/automotivesolutions.ro\/?p=3249"},"modified":"2023-02-15T07:50:42","modified_gmt":"2023-02-15T05:50:42","slug":"senzor-de-detonare-knock","status":"publish","type":"post","link":"https:\/\/automotivesolutions.ro\/es\/2023\/02\/15\/sensor-de-detonacion\/","title":{"rendered":"Sensor de detonaci\u00f3n - Knock"},"content":{"rendered":"
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Sensor de detonaci\u00f3n - Knock<\/p>

\u00a0<\/p>

Aunque el sensor de detonaci\u00f3n no es tan conocido como algunos de sus hom\u00f3logos, es esencial para mantener el motor de su coche funcionando correctamente. Te informa cuando hay detonaci\u00f3n o preignici\u00f3n.<\/p>

\u00bfQu\u00e9 es un sensor de detonaci\u00f3n?<\/p>

La detonaci\u00f3n del motor suele estar causada por formas nocivas de combusti\u00f3n anormal, como el preencendido .\u00a0<\/p>

El sensor de detonaci\u00f3n, situado en el exterior del bloque motor, registra el ruido de detonaci\u00f3n en todos los estados de funcionamiento del motor para evitar da\u00f1os en el motor. En otras palabras, escucha las vibraciones que sufre la estructura del bloque motor.<\/p>

\u00a0<\/p>

\u00bfPor qu\u00e9 son importantes estos sensores de detecci\u00f3n de vibraciones?<\/p>

El sensor de detonaci\u00f3n es necesario porque, aunque los humanos oyen los estruendos y los pitidos, el sensor detecta ruidos imperceptibles.\u00a0<\/p>

As\u00ed, cuando el sensor detecta cualquier vibraci\u00f3n de alta frecuencia del motor caracter\u00edstica del ruido de golpeteo, env\u00eda una se\u00f1al de tensi\u00f3n a la unidad de control electr\u00f3nico (ECU) y \u00e9sta retrasa la sincronizaci\u00f3n de la buj\u00eda. Como resultado, un sensor de golpeteo puede reducir el consumo de combustible, ayudar a mejorar la econom\u00eda de combustible y aumentar el par motor.<\/p>

\u00bfCu\u00e1les son los signos de un sensor de detonaci\u00f3n defectuoso?<\/p>

El fallo del sensor de detonaci\u00f3n puede causar f\u00e1cilmente uno o m\u00e1s s\u00edntomas visibles.\u00a0<\/p>

Los problemas m\u00e1s comunes de los sensores incluyen:<\/p>

1. Se enciende la luz de comprobaci\u00f3n del motor<\/p>

Cuando el M\u00f3dulo de Control del Tren Motriz (PCM) detecta un sensor de detonaci\u00f3n o un circuito defectuoso, encender\u00e1 el LED de revisi\u00f3n del motor y activar\u00e1 un C\u00f3digo de Diagn\u00f3stico de Problemas ( DTC ) correspondiente.<\/p>

2. Un ruido de ping del motor<\/p>

En caso de fallo del sensor de detonaci\u00f3n, es posible que el PCM no pueda reconocer o reparar la detonaci\u00f3n. El sensor defectuoso puede provocar un ruido met\u00e1lico en el motor.\u00a0<\/p>

Tambi\u00e9n notar\u00e1 que el ruido es m\u00e1s intenso cuando el motor est\u00e1 sometido a una carga elevada.<\/p>

3. Rendimiento deficiente del motor<\/p>

Un fallo en el sensor de detonaci\u00f3n puede hacer que el PCM desajuste el tiempo de encendido, dando como resultado un rendimiento inadecuado del motor.<\/p>

El motor puede no sentirse bien cuando se conduce a alta velocidad o cuando el veh\u00edculo lleva una carga ligera o pesada.<\/p>

En tal caso, debe ser revisado por un mec\u00e1nico aunque el testigo de revisi\u00f3n del motor no est\u00e9 encendido.<\/p>

3. Aceleraci\u00f3n deficiente<\/p>

Un sensor de encendido defectuoso puede no dejar que el motor acelere correctamente al conducir por autopista, lo que hace que el coche pierda consumo de combustible.\u00a0<\/p>

4. 4. P\u00e9rdida de potencia<\/p>

Una vez que la unidad de control del motor se da cuenta de que el sensor de golpes no funciona correctamente, lo m\u00e1s probable es que el coche pierda potencia.\u00a0<\/p>

La cantidad de potencia perdida depender\u00e1 del l\u00edmite de octano del motor y cu\u00e1nto depende de la entrada del sensor de detonaci\u00f3n.\u00a0<\/p>

Los coches con mayor p\u00e9rdida de potencia son los motores de alta compresi\u00f3n y de combustible flexible. Esto se debe a que la p\u00e9rdida de potencia ralentiza la sincronizaci\u00f3n y mantiene la transmisi\u00f3n alejada de la unidad hasta que se sustituye el sensor de picado.\u00a0<\/p>

\u00bfQu\u00e9 causa un error de detonaci\u00f3n?<\/p>

Hay varias razones por las que se produce una detonaci\u00f3n del motor.\u00a0<\/p>

He aqu\u00ed algunas posibles causas:<\/p>

\u2981 El encendido de la chispa no se produce a tiempo.<\/p>

\u2981 Relaci\u00f3n de mezcla aire\/combustible inadecuada.<\/p>

\u2981 Dep\u00f3sitos en el interior del cilindro (suciedad y contaminantes que entran en el cilindro).<\/p>

Buj\u00edas defectuosas<\/p>

\u2981 Buj\u00edas de encendido de tipo incorrecto o con acumulaci\u00f3n de dep\u00f3sitos.<\/p>

\u2981 Combustible de bajo octanaje<\/p>

\u2981 Montaje incorrecto de los sensores de detonaci\u00f3n.<\/p>

\u2981 Da\u00f1os mec\u00e1nicos<\/p>

\u2981 Temperaturas de funcionamiento del motor anormalmente altas.<\/p>

\u2981 Acumulaci\u00f3n de carbono en el interior de la(s) c\u00e1mara(s) de combusti\u00f3n.<\/p>

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Senzor de detonare – Knock De\u0219i senzorul de detonare nu este la fel de cunoscut ca unii dintre omologii s\u0103i, este esen\u021bial pentru a men\u021bine functionarea corecta a motorului ma\u0219inii dumneavoastr\u0103. V\u0103 informeaz\u0103 c\u00e2nd exist\u0103 detonare sau pre-aprindere. Ce este un senzor de detonare ? Detonarea motorului este cauzat\u0103 de obicei de forme d\u0103un\u0103toare de ardere anormal\u0103, cum ar fi pre-aprinderea . Senzorul de detonare, situat \u00een exteriorul blocului motor, \u00eenregistreaz\u0103 zgomotul de detonare \u00een toate st\u0103rile de func\u021bionare a motorului pentru a preveni deteriorarea acestuia. Cu alte cuvinte, ascult\u0103 vibra\u021biile suportate de structura blocului motor. De ce sunt importan\u021bi ace\u0219ti senzori de detectare a vibra\u021biilor? Senzorul de detonare este necesar deoarece – de\u0219i b\u0103t\u0103ile \u0219i ping-urile puternice sunt auzite de oameni, senzorul detecteaz\u0103 zgomote imperceptibile. Deci, atunci c\u00e2nd senzorul detecteaz\u0103 orice vibra\u021bie de \u00eenalt\u0103 frecven\u021b\u0103 a motorului caracteristic\u0103 zgomotului de cioc\u0103nit, trimite un semnal de tensiune c\u0103tre unitatea de control electronic\u0103 (ECU) iar aceasta \u00eent\u00e2rzie sincronizarea bujiilor. Ca rezultat, un senzor de detonare poate reduce consumul de combustibil, poate ajuta la \u00eembun\u0103t\u0103\u021birea economiei de combustibil \u0219i la cre\u0219terea cuplului. Care sunt semnele unui senzor de detonare defect? Defec\u021biunea senzorului de detonare poate provoca cu u\u0219urin\u021b\u0103 unul sau mai multe simptome vizibile. Cele mai frecvente probleme ale senzorului includ: 1. O lumin\u0103 de verificare a motorului aprins\u0103 C\u00e2nd modulul de control al grupului de propulsie (PCM) detecteaz\u0103 un senzor de detonare sau un circuit defect, va aprinde ledul de verificare a motorului \u0219i va declan\u0219a un cod de diagnosticare a erorii ( DTC ) aferent. 2. Un zgomot de ping de la motor \u00cen cazul unei defec\u021biuni a senzorului de detonare, este posibil ca PCM s\u0103 nu poat\u0103 recunoa\u0219te sau repara detonarea. Senzorul defectat poate duce la un zgomot metalic de la motor. Ve\u021bi observa, de asemenea, c\u0103 zgomotul devine cel mai proeminent atunci c\u00e2nd motorul este sub o sarcin\u0103 mare. 3. Performan\u021b\u0103 scazuta a motorului O defec\u021biune a senzorului de detonare poate determina PCM s\u0103 regleze gre\u0219it momentul aprinderii, ceea ce duce la o performan\u021b\u0103 inadecvat\u0103 a motorului. Este posibil ca motorul s\u0103 nu se simt\u0103 corespunzator \u00een timp ce conduce\u021bi cu vitez\u0103 mare sau c\u00e2nd vehiculul transport\u0103 o sarcin\u0103 u\u0219oar\u0103 sau grea. \u00centr-un astfel de caz, ar trebui verificat de c\u0103tre un mecanic chiar dac\u0103 ledul de verificare a motorului nu este aprins. 3. Accelera\u021bie slab\u0103 Este posibil ca un senzor de detonare defect s\u0103 nu lase motorul s\u0103 accelereze corect \u00een timp ce conduce\u021bi pe autostrad\u0103, ceea ce face ca ma\u0219ina s\u0103 piard\u0103 consumul de combustibil. 4. Pierderea puterii Odat\u0103 ce unitatea de control al motorului realizeaz\u0103 c\u0103 senzorul de detonare nu func\u021bioneaz\u0103 corect, ma\u0219ina va pierde cel mai probabil din putere. Cantitatea de putere pierdut\u0103 va depinde de limita octanic\u0103 a motorului \u0219i de c\u00e2t de mult depinde aceasta de intrarea senzorului de detonare. Ma\u0219inile cu cea mai mare pierdere de putere sunt motoarele cu compresie ridicat\u0103 \u0219i cu combustibil flexibil. Acest lucru se datoreaz\u0103 faptului c\u0103 pierderea de putere \u00eencetine\u0219te sincronizarea \u0219i \u021bine transmisia departe de unitate p\u00e2n\u0103 c\u00e2nd senzorul de detonare este \u00eenlocuit. Care sunt cauzele unei erori de detonare\u00a0 ? Exist\u0103 mai multe motive pentru care se \u00eent\u00e2mpl\u0103 o detonare a motorului. Iat\u0103 c\u00e2teva cauze poten\u021biale: \u2981 Aprinderea prin sc\u00e2nteie nu are loc la timp \u2981 Raport necorespunz\u0103tor al amestecului de aer \u0219i combustibil \u2981 Depuneri \u00een interiorul cilindrului (murd\u0103rie \u0219i contaminan\u021bi care intr\u0103 \u00een cilindri) Bujii defecte \u2981 Bujii care sunt de tip gre\u0219it sau cu acumulare de depozite \u2981 Combustibil cu octan sc\u0103zut \u2981 Montarea incorect\u0103 a senzorilor de detonare \u2981 Deterior\u0103ri mecanice \u2981 Temperaturi de func\u021bionare a motorului anormal de ridicate \u2981 Acumularea de carbon \u00een interiorul camerei sau camerelor de ardere<\/p>","protected":false},"author":1,"featured_media":3254,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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de detonare – Knock De\u0219i senzorul de detonare nu este la fel de cunoscut ca unii dintre omologii s\u0103i, este esen\u021bial pentru a men\u021bine functionarea corecta a motorului ma\u0219inii dumneavoastr\u0103. V\u0103 informeaz\u0103 c\u00e2nd exist\u0103 detonare sau pre-aprindere. Ce este un senzor de detonare ? Detonarea motorului este cauzat\u0103 de obicei de forme d\u0103un\u0103toare de…","_links":{"self":[{"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/posts\/3249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/comments?post=3249"}],"version-history":[{"count":5,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/posts\/3249\/revisions"}],"predecessor-version":[{"id":3255,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/posts\/3249\/revisions\/3255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/media\/3254"}],"wp:attachment":[{"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/media?parent=3249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/categories?post=3249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/automotivesolutions.ro\/es\/wp-json\/wp\/v2\/tags?post=3249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}