SE1350807A1 - Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle - Google Patents

Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle Download PDF

Info

Publication number
SE1350807A1
SE1350807A1 SE1350807A SE1350807A SE1350807A1 SE 1350807 A1 SE1350807 A1 SE 1350807A1 SE 1350807 A SE1350807 A SE 1350807A SE 1350807 A SE1350807 A SE 1350807A SE 1350807 A1 SE1350807 A1 SE 1350807A1
Authority
SE
Sweden
Prior art keywords
belt
generator
vehicle
computer program
function
Prior art date
Application number
SE1350807A
Other languages
Swedish (sv)
Other versions
SE537273C2 (en
Inventor
Gunnar Ledfelt
Dan Magnusson
Patrik Jansson
Holger Dreher
Original Assignee
Scania Cv Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1350807A priority Critical patent/SE537273C2/en
Priority to DE102014009509.6A priority patent/DE102014009509B4/en
Publication of SE1350807A1 publication Critical patent/SE1350807A1/en
Publication of SE537273C2 publication Critical patent/SE537273C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/023—Power-transmitting endless elements, e.g. belts or chains

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

SAMMANDRAG Vid ett forfarande for detektering av brott pa en rem (1) som är anordnad i ett motorfordon for att drivas av en forbranningsmotor (2) och darigenom sjalv driva atminstone en generator (3) och en kylvatskepump (4), varvid fordonet uppvisar medel utformade att faststalla tillstandet hos generatorns funktion och sanda ut en signal vid klanderfri funktion hos generatorn, bestams att en forutsattning for forekomst av brott pa remmen är att nagon namnd signal inte sands ut. Nar detta galler kontrolleras en av ett brott pa remmen beroende funktion hos en annan komponent hos fordonet an generatorn och bestams att resultatet av kontrollen avgar om brott pa remmen forekommer eller ej. SUMMARY In a method for detecting breakage of a belt (1) arranged in a motor vehicle to be driven by an internal combustion engine (2) and thereby itself drive at least one generator (3) and a cooling water pump (4), the vehicle having means designed to determine the state of the generator's function and send out a signal during faultless operation of the generator, it is determined that a prerequisite for the occurrence of a break in the belt is that no said signal is transmitted. When this is the case, a function dependent on a belt failure is checked on another component of the vehicle by the generator and it is determined that the result of the inspection determines whether a break in the belt occurs or not.

Description

2 Vid ett rembrott hos ett namnt motorfordon stannar kylvatskepumpen, vilket medfor att kylningen av motorn uteblir. Det är da viktigt att motorn stannar sa snart som mojligt for att den inte ska overhettas och skadas. Av denna anledning är det av yttersta vikt att rembrott kan detekteras nar det val upptrader. 2 In the event of a belt breakage of a named motor vehicle, the coolant pump stops, which means that the engine does not cool down. It is then important that the engine stops as soon as possible so that it does not overheat and be damaged. For this reason, it is of utmost importance that belt breakage can be detected when the choice occurs.

BAKGRUNDSTEKNIK US 2006/0054128 Al beskriver ett forfararande av inledningsvis definierat slag for detektering av rembrott, vid vilket funktionen hos den av remmen drivna generatorn overvakas och det utga's ifran att rembrott foreligger nar generatorn inte fungerar som den ska. Den slutsats som dar dras vad galler forekomst av rembrott kan under vissa omstandigheter vara felaktig. BACKGROUND ART US 2006/0054128 A1 describes a method of initially defined kind for detecting belt breakage, in which the function of the generator driven by the belt is monitored and it is assumed that belt breakage is present when the generator does not function properly. The conclusion drawn there as to the occurrence of belt breakage may in certain circumstances be incorrect.

Det är ocksa ' Darvid utgas det ifran att rembrott foreligger nar namnda signal inte langre sands ut, och fordonet stalls stilla sa snart som mojligt och anses vara i bradskande reparationstillstand (VOR = Vehicle Off Road). It's too ' It is assumed that there is a belt break when the said signal is no longer sent out, and the vehicle is stopped as soon as possible and is considered to be in a state of emergency repair (VOR = Vehicle Off Road).

Att generatorn inte fungerar klanderfritt kan dock ha andra orsaker an en forekomst av ett rembrott, sa att dessa forfaranden far detektering av rembrott kan leda till onodiga stopp av ett fordon. 3 SAMMANFATTNING AV UPPFINNINGEN Syftet med foreliggande uppfinning är att tillhandahalla ett forfarande av inledningsvis definierat slag, vilket är forbattrat i at-5 minstone nagot hanseende med avseende pa tidigare kanda sadana forfaranden. The fact that the generator does not work flawlessly can, however, have other causes than the occurrence of a belt break, so that these procedures for the detection of belt breaks can lead to unnecessary stopping of a vehicle. SUMMARY OF THE INVENTION The object of the present invention is to provide a method of initially defined kind, which is improved in at least some respect with respect to prior art such methods.

Detta syfte uppnas enligt uppfinningen genom att tillhandahalla ett sadant forfarande som uppvisar sardragen hos bifogade pa- tentkrav 1. This object is achieved according to the invention by providing such a method which has the features of appended claims 1.

Genom att vid ej klanderfri funktion hos generatorn utfora en kontroll av funktionen hos en annan komponent hos fordonet vars funktion är beroende av ett brott pa namnda rem och bestamma att brott pa remmen forekommer om och endast om kontroll av funktionen hos denna komponent indikerar detta, kan det tillforlitligt avgaras om rembrott foreligger eller ej. Det utgas foljaktligen ifran att dubbelfel inte forekommer, d v s att tva av varandra oberoende signaler samtidigt är felaktiga. Visar kontrollen av funkt- ionen hos namnda komponent hos fordonet att denna komponent fungerar normalt, d v s som om namnda rem yore hel och ej lossnat, da bestams att anledningen till att generatorn inte fungerar som den ska maste vara en annan an att rembrott foreligger. T ex kan det ha upptratt nagot elektriskt fel i generatorn, sasom i dess regulator eller i en likriktarbrygga has denna, vilket kan re- sultera i utebliven eller reducerad laddning av till generatorn anslutna batterier, men i dessa fall gar det utmarkt att [(Ora fordonet vidare pa enbart strom fran batterierna, kanske i flera timmar. Det uppfinningsenliga forfarandet kan saledes reducera onodiga 4 stopp av fordonet genom att vid mindre akuta generatorproblem tillata fortsatt fard av fordonet under viss tid. By performing an impeccable function of the generator, checking the function of another component of the vehicle whose function is dependent on a break in the said belt and determining that a break in the belt occurs if and only if a check of the function of this component indicates this, it is reliably determined whether or not a belt breakage is present. Consequently, it is assumed that double errors do not occur, i.e. that two independent signals at the same time are incorrect. If the check of the function of the said component of the vehicle shows that this component functions normally, ie as if the said belt is intact and not loosened, then it is determined that the reason why the generator does not work as it should must be other than that there is a broken belt. For example, there may have been some electrical fault in the generator, such as in its regulator or in a rectifier bridge, which may result in no or reduced charging of batteries connected to the generator, but in these cases it is excellent that [(Ora the vehicle continues on only power from the batteries, perhaps for several hours.The method of the invention can thus reduce unnecessary 4 stops of the vehicle by allowing the vehicle to continue driving for a certain period of time in the event of less acute generator problems.

"Att namnda medel upphar att sanda ut namnda signal" menas har att ett kontinuerligt upphorande av utsandande av signalen foreligger, d v s inte att signalen av nagon anledning tillfalligt faller bort och aterkommer, utan vid utforande av steg b) och c) ska signalen vara permanent forsvunnen. "Om och endast om" betyder att om det som foljer pa detta ej galler da bestams att det inte foreligger nagot rembrott. "That said means ceases to transmit said signal" means that there is a continuous cessation of transmission of the signal, ie not that the signal for some reason accidentally falls away and reappears, but when performing steps b) and c) the signal must be permanent disappeared. "If and only if" means that if what follows on this does not apply then it is determined that there is no belt breakage.

Enligt en utforingsform av uppfinningen utfors i steg b) funktionskontrollen genom att direkt eller indirekt mata varvtalet hos en namnd komponent som namnda rem är anordnad att rotera. Detta utgor ett tillforlitligt satt att vid upphorande av utsandandet av namnda signal om klanderfri funktion has generatorn klargora huruvida rembrott foreligger eller ej. Roterar komponenten ifraga med ett varvtal den inte skulle kunna ha om remmen var av, da maste remmen vara hel. According to an embodiment of the invention, in step b) the function check is performed by directly or indirectly feeding the speed of a named component which said belt is arranged to rotate. This constitutes a reliable means that when the transmission of the said signal of faultless function has ceased, the generator has to clarify whether there is a belt break or not. If the component rotates at a speed it could not have if the belt was off, then the belt must be intact.

Enligt en annan utforingsform av uppfinningen mats i steg b) varvtalet has ett hjul has namnda kylvatskepump. Detta utgor ett tillforlitligt satt att avgora om rembrott foreligger eller ej. According to another embodiment of the invention, in step b) the speed is fed to a wheel called the cooling water pump. This constitutes a reliable way of determining whether a belt breakage exists or not.

Enligt en annan utforingsform av uppfinningen mats i steg b) varvtalet has en av namnda rem driven flakt. Darvid skulle motorfordonets hastighet aven kunna beaktas i det fall ett flakthjul hos namnda flakt är sa anordnat att det aven kan drivas av fordonets fartvind. According to another embodiment of the invention, in step b) the speed is fed to a plane driven by said belt. In this case, the speed of the motor vehicle could also be taken into account in the event that a flat wheel of said flat is arranged so that it can also be driven by the vehicle's wind speed.

Enligt en annan utforingsform av uppfinningen utfors forfarandet hos ett fordon med en brytrulle anordnad att styra och lanka om namnda rem, och i steg b) mats varvtalet hos brytrullen. Detta utgor ett tillforlitligt satt att kontrollera om generatorn fungerar bristfalligt p g a ett rembrott eller av annan orsak. Detsamma gal- ler nar has en annan utforingsform av uppfinningen forfarandet utfors hos ett fordon som uppvisar en luftkonditioneringsanlaggning som drivs av ett hjul drivet av namnda rem att rotera, och i steg b) varvtalet has namnda hjul mats. According to another embodiment of the invention, the process is carried out in a vehicle with a breaker roller arranged to steer and rewind said belt, and in step b) the speed of the breaker roller is fed. This constitutes a reliable way to check whether the generator is malfunctioning due to a belt breakage or for some other reason. The same gall when another embodiment of the invention is carried out in a vehicle having an air conditioner driven by a wheel driven by said belt to rotate, and in step b) the speed is said wheel being fed.

Enligt en annan utforingsform av uppfinningen utfors forfarandet hos ett fordon med en spannrulle anordnad rorlig till anliggning mot en namnd rem for att spanna denna, och i steg b) mats laget hos spannrullen. En sadan spannrulle anligger normalt via en fjaderbelastad arm mot remmen for att halla denna spand. Vid rembrott kommer darfor armen och darmed spannrullen att forflyttas, sa att en matning av dess !age kan anvandas for att detektera rembrott. According to another embodiment of the invention, the method of performing a vehicle with a tension roller arranged movably in abutment against a named belt is performed to tension it, and in step b) the layer of the tension roller is fed. Such a bucket roller normally abuts via a spring-loaded arm against the belt to hold this bucket. In case of belt breakage, the arm and thus the tension roller will therefore be moved, so that a feed of its age can be used to detect belt breakage.

Enligt en annan utforingsform av uppfinningen utfors forfarandet pa ett fordon med en ytterligare generator utformad att drivas av namnda rem och att styras av en regulator skild fran en regulator anordnad att styra namnda atminstone ena generator, varvid fordonet uppvisar organ utformade att faststalla tillstandet hos den ytterligare generatorns funktion och sanda ut en signal vid klan- derfri funktion hos den ytterligare generatorn, och i steg b) kontrolleras funktionen hos namnda ytterligare generator genom att kontrollera om namnda signal utsands av namnda organ. Har utgas det saledes ifran att en bristfallig funktion hos !pada namnda 6 generatorer endast dyker upp samtidigt om denna beror pa rembrott. According to another embodiment of the invention, the method is performed on a vehicle with a further generator designed to be driven by said belt and to be controlled by a regulator separate from a regulator arranged to control said at least one generator, the vehicle having means designed to determine the state of the further the function of the generator and emit a signal in the event-free operation of the further generator, and in step b) the function of said further generator is checked by checking whether said signal is transmitted by said means. It has thus been assumed that a defective function of the above-mentioned 6 generators only appears at the same time if this is due to belt breakage.

Uppfinningen avser aven en anordning for detektering av brott pa en rem enligt bifogade sjalvstandiga anordningspatentkrav. Funktionen hos en sadan anordning samt anordningen enligt utforingsformen definierad i bifogade osjalvsandiga patentkrav framgar av beskrivningen ovan av utforingsformerna av det uppfinningsenliga forfarandet. The invention also relates to a device for detecting breakage of a belt according to the appended independent device patent claims. The operation of such a device and the device according to the embodiment defined in the appended unsavory claims are apparent from the above description of the embodiments of the method according to the invention.

Uppfinningen avser aven ett datorprogram uppvisande de i patentkrav 11 uppraknade sardragen, en datorprogramprodukt uppvisande de i patentkrav 12 uppraknade sardragen, en elektronisk styrenhet uppvisande de i patentkrav 13 uppraknade sardragen och ett motorfordon enligt patentkraven 14 och 15. The invention also relates to a computer program having the sardra features listed in claim 11, a computer program product having the sardra features listed in claim 12, an electronic control unit having the sardra features listed in claim 13 and a motor vehicle according to claims 14 and 15.

Andra fordelaktiga sardrag hos samt fordelar med uppfinningen framgar av den nedan foljande beskrivningen. Other advantageous features and advantages of the invention will become apparent from the following description.

KORT BESKRIVNING AV RITNINGARNA Har nedan beskrivs sasom exempel anforda utforingsformer av uppfinningen under hanvisning till bifogade ritningar, pa vilka: Fig 1är en forenklad vy av nagra komponenter hos ett mo- torfordon drivna av en namnd rem for illustrerande av ett forfarande enligt en utforingsform av uppfinningen, Fig 2är en Fig 1 motsvarande vy for illustrerande av forfa- randen enligt andra utforingsformer av uppfinningen, 7 Fig 3är ett flodesdiagram som visar ett forfarande enligt en utforingsform av uppfinningen, och Fig 4är en principskiss over en elektronisk styrenhet for implementering av ett forfarande enligt uppfinningen. BRIEF DESCRIPTION OF THE DRAWINGS The following is an exemplary embodiment of the invention with reference to the accompanying drawings, in which: Fig. 1 is a simplified view of some components of a motor vehicle driven by a named belt to illustrate a method according to an embodiment of the invention. Fig. 2 is a Fig. 1 corresponding view for illustrating the method according to other embodiments of the invention, Fig. 3 is a river diagram showing a method according to an embodiment of the invention, and Fig. 4 is a schematic diagram of an electronic control unit for implementing a method according to the invention.

DETALJERAD BESKRIVNING AV UTFORINGSFORMER AV UPPFINNINGEN I Fig 1 visas schematiskt en anordning far detektering av brott pa en rem 1 som är anordnad i ett motorfordon M for att drivas av en forbranningsmotor 2 och att darigenom sjalv driva en generator 3 och en kylvatskepump 4 for kylning av forbranningsmotorn. DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION Fig. 1 schematically shows a device for detecting failure of a belt 1 arranged in a motor vehicle M to be driven by an internal combustion engine 2 and thereby to drive a generator 3 and a cooling water pump 4 for cooling the internal combustion engine.

I anordningen ingar schematiskt antydda medel 5 utformade att faststalla tillstandet hos generatorns funktion och sanda ut en signal vid klanderfri funktion hos generatorn. Denna signal sands vid sadan klanderfri funktion vidare till en inrattning 6. Klanderfri funktion innebar att generatorn vid drift av forbranningsmotorn 2 fungerar felfritt. Fel hos generatorn maste darvid inte nadvan- digtvis markas pa fordonets funktion, sasom till batterier levererad laddningsstrom eller strom till annan utrustning om kapacitetsutnyttjandet hos sadan utrustning ej är hogt. Namnda fel kan bero pa att remmen 1 Ott av, sa att en rotor hos generatorn inte roterar, eller att generatorns regulator fungerar bristfalligt eller nagon komponent hos en likriktarbrygga hos generatorn gatt sander. Nagon lindning hos generatorns stator kan aven ha Ott sander. Nar nagot av detta eller annat fel hos generatorns funktion intraffar upphor namnda medel 5 att sanda namnda signal till inrattningen 6. 8 Anordningen innefattar vidare organ 7 anordnade att vid upphorande av utsandande av namnda signal kontrollera en av ett brott pa namnda rem beroende funktion hos en annan komponent hos fordonet an generatorn, i det i Fig 1 visade fallet kylvatskepum- pen 4, och sanda denna information vidare till inrattningen 6. Inrattningen 6 är utformad att bestamma att resultatet av namnda kontroll avgar om brott pa remmen 1 forekommer eller ej satillvida att brott pa remmen bestams forekomma om och endast om kontrollen av funktionen hos komponenten indikerar detta. Vid bestammande av att rembrott foreligger sands denna information vidare till en display 8 som visar detta for foraren, t ex genom att tanda en rod lampa. Inrattningen 6 kan aven vara utformad att sanda en annan signal till displayen 8 for att tanda en annan lampa, t ex en gul lampa, om namnda medel 5 har upphort att sanda ut sin signal om klanderfri funktion hos generatorn men kontrollen utford av organet 7 visat att funktionen hos kylvatskepumpen är sasom forvantad och det darmed bestamts att inget rembrott foreligger. The device schematically indicates means 5 designed to determine the state of the operation of the generator and send out a signal during faultless operation of the generator. This signal is transmitted in such a fault-free function to a device 6. A fault-free function meant that the generator operates faultlessly when operating the internal combustion engine 2. Faults in the generator must not necessarily be marked on the vehicle's function, such as battery power supplied to batteries or power to other equipment if the capacity utilization of such equipment is not high. Said error may be due to the belt 1 Ott off, so that a rotor of the generator does not rotate, or that the regulator of the generator malfunctions or some component of a rectifier bridge of the generator has failed. Some winding of the generator's stator may also have Ott sander. When any of this or any other fault of the function of the generator occurs, said means 5 ceases to transmit said signal to the device 6. The device further comprises means 7 arranged to check upon cessation of transmission of said signal a function dependent on a break in said belt of a device. another component of the vehicle to the generator, in the case shown in Fig. 1 the cooling water pump 4, and send this information on to the device 6. The device 6 is designed to determine that the result of said inspection determines whether a break in the belt 1 occurs or not to the extent that Breakage of the belt is determined to occur if and only if the check of the function of the component indicates this. When determining that belt breakage is present, this information is passed on to a display 8 which shows this to the driver, for example by lighting a red lamp. The device 6 may also be designed to send another signal to the display 8 to light another lamp, for example a yellow lamp, if said means 5 has ceased to transmit its signal of faultless operation of the generator but the control challenge of the means 7 is shown. that the function of the coolant pump is as expected and it has thus been determined that there is no belt breakage.

I foreliggande fall är namnda organ 7 utformade att direkt eller indirekt mata varvtalet hos ett hju I hos kylvatskepumpen 4. Roterar detta hjul med forvantat varvtal kan rembrott uteslutas. Roterar dock inte hjulet med fOrvantat varvtal kan det bestammas att rembrott foreligger. Saledes utgas det ifran att dubbelfel inte fo- rekommer, d v s att det inte är mojligt att namnda organ 7 visar ett fel samtidigt som tel hos generatorn upptrader. Har !Dor naturligtvis funktionen hos organet 7 automatiskt kontrolleras med lampliga intervaller. 9 Med hjalp av Fig 2 illustreras en mangd olika utforingsformer av en anordning enligt uppfinningen och f6rfaranden enligt uppfinningen. De komponenter som finns med i Fig 1 är forsedda med samma hanvisningsbeteckningar har som dar. Har visas en rad andra komponenter som kan drivas av remmen 1 och vars funktion kan kontrolleras och sedan resultatet av denna kontroll saridas till inrattningen 6 for bestammande av om rembrott foreligger eller ej. In the present case, said means 7 are designed to directly or indirectly feed the speed of a wheel I of the cooling water pump 4. If this wheel rotates at a predetermined speed, belt breakage can be omitted. However, if the wheel does not rotate at the expected speed, it can be determined that there is a belt breakage. Thus, it is assumed that double errors do not occur, ie that it is not possible for the said body 7 to show an error at the same time as the generator's telephone appears. Of course, the function of the member 7 is automatically checked at appropriate intervals. Using Fig. 2, a variety of embodiments of a device according to the invention and methods according to the invention are illustrated. The components included in Fig. 1 are provided with the same male reference numerals as there are. A number of other components have been shown which can be driven by the belt 1 and whose function can be checked and then the result of this control is passed to the device 6 for determining whether a belt breakage is present or not.

Det visas organ 7' anordnade att mata varvtalet hos en av rem- men driven flakt 9. Organ 7" kan vara anordnade att mata varvtalet hos ett hjul 10 som drivs av remmen 1 och sjalv driver en luftkonditioneringsanlaggning hos fordonet. It is shown means 7 'arranged to feed the speed of a belt 9 driven by the belt. Means 7 "may be arranged to feed the speed of a wheel 10 which is driven by the belt 1 and itself operates an air conditioning system of the vehicle.

En brytrulle 11 kan vara anordnad att styra och lanka om rem- men 1, och organ 7" kan mata varvtalet hos brytrullen for att inrattningen 6 ska kunna bestamma om ett rembrott foreligger eller ej. Denna brytrulle kan vara forbunden med en icke visad fjaderbelastad arm och da aven fungera som spannrulle eller en sepa- rat spannrulle kan vara anordnad. I ett sadant fall kan laget pa spannrullen eller namnda arm matas for att bestamma om rembrott foreligger eller ej. A breaker roller 11 may be arranged to guide and re-tighten the belt 1, and means 7 "may feed the speed of the breaker roller so that the device 6 can determine whether a belt breaker is present or not. This breaker roller may be connected to a spring-loaded arm (not shown). and since they also function as a tensioning roller or a separate tensioning roller can be provided, in such a case the layer on the tensioning roller or said arm can be fed to determine whether there is a belt breakage or not.

Slut!igen kan fordonet uppvisa en ytterligare generator 12 utfor- mad att drivas av remmen 1 och att styras av en regulator skild fran en regulator anordnad att styra generatorn 3. Organ 17 ar utformade att faststalla tillstandet hos den ytterligare generatorns funktion och sanda ut en signal vid en klanderfri funktion hos denna generator. lnrattningen kan anvanda information fran or- ganet 17 for att bestamma om ett rembrott foreligger eller ej i det fall namnda medel 5 inte sander ut flagon signal om klanderfri funktion hos generatorn 3. Finally, the vehicle may have an additional generator 12 designed to be driven by the belt 1 and to be controlled by a regulator separate from a regulator arranged to control the generator 3. Means 17 are designed to determine the state of the function of the additional generator and emit a signal at a faultless function of this generator. The device can use information from the device 17 to determine whether a belt breakage is present or not, in which case the said means 5 does not send out a flag signal about fault-free function of the generator 3.

Det papekas an en gang att hos en anordning enligt uppfinningen torde endast ett av organen 7, 7', 7", 7" och 17 vara anordnade for sandande av information till inrattningen 6 aven om motorfordonet skulle uppvisa samtliga komponenter som finns visade i Fig 2. It is pointed out at one time that in a device according to the invention only one of the means 7, 7 ', 7 ", 7" and 17 should be arranged for sending information to the device 6 even if the motor vehicle should have all the components shown in Fig. 2. .

I Fig 3 visas ett flodesdiagram som illustrerar ett forfarande en- ligt en utforingsform av uppfinningen far detektering av brott pa' en rem som är anordnad i ett motorfordon for att drivas av en forbranningsmotor och darigenom sjalv driva atminstone en generator och en kylvatskepump. Forfarandet kan utforas med en anordning av den typ som illustreras i Fig 1 och 2. I ett forsta steg Si fragas om en signal om klanderfri generatorfunktion sands ut fran namnda generator. Om svaret pa denna frbga är nej fortsatts med ett steg S2, genom vilket det kontrolleras om funktionen hos annan komponent driven av remmen är som den ska. Om svaret pa fragan i S2 är ja bestams i ett steg S3 att rembrott ej foreligger, och om svaret pa fragan är nej bestams i ett steg S4 att rembrott foreligger. Fig. 3 shows a river diagram illustrating a method according to an embodiment of the invention for detecting breakage of a belt arranged in a motor vehicle to be driven by an internal combustion engine and thereby to operate at least one generator and a cooling water pump itself. The process can be performed with a device of the type illustrated in Figs. 1 and 2. In a first step Si is asked if a signal of faultless generator function is emitted from said generator. If the answer to this question is no, continue with a step S2, by which it is checked whether the function of another component driven by the belt is as it should be. If the answer to the question in S2 is yes, it is determined in a step S3 that there is no belt breakage, and if the answer to the question is no, it is determined in a step S4 that there is a belt break.

Datorprogramkod for implementering av ett forfarande enligt up p- finningen är lampligen inkluderad i ett datorprogram som är in- lasningsbart till internminnet hos en dator, sasom internminnet hos en elektronisk styrenhet hos en forbranningsmotor. Ett sadant datorprogram är lampligen tillhandahallet via en datorprogramprodukt innefattande ett av en elektronisk styrenhet lasbart datalagringsmedium, vilket datalagringsmedium har datorpro- 11 grammet lagrat darpa. Namnda datalagringsmedium är exempelvis ett optiskt datalagringsmedium i form av en CD-ROM-skiva, en DVD-skiva etc., ett magnetiskt datalagringsmedium i form av en harddisk, en diskett, ett kassettband etc., eller ett Flashminne eller ett minne av typen ROM, PROM, EPROM eller EEPROM. Computer program code for implementing a method according to the invention is suitably included in a computer program which can be loaded into the internal memory of a computer, such as the internal memory of an electronic control unit of an internal combustion engine. Such a computer program is suitably provided via a computer program product comprising a data storage medium which can be read by an electronic control unit, which data storage medium has the computer program stored thereon. Said data storage medium is, for example, an optical data storage medium in the form of a CD-ROM, a DVD disc, etc., a magnetic data storage medium in the form of a hard disk, a floppy disk, a cassette tape, etc., or a flash memory or a ROM type. , PROM, EPROM or EEPROM.

Fig. 4 illustrerar mycket schematiskt en elektronisk styrenhet 18 innefattande ett exekveringsmedel 19, sasom en central processorenhet (CPU), for exekvering av datorprogramvara. Exekve- ringsmedlet 19 kommunicerar med ett minne 20, exempelvis av typen RAM, via en databuss 21. Styrenheten 18 innefattar aven datalagringsmedium 22, exempelvis i form av ett Flashminne eller ett minne av typen ROM, PROM, EPROM eller EEPROM. Exekveringsmedlet 19 kommunicerar med datalagringsmediet 22 via databussen 21. Ett datorprogram innefattande datorprogramkod far implementering av ett forfarande enligt uppfinningen, exempelvis i enlighet med den i Fig. 3 illustrerade utforingsformen, är lagrat pa datalagringsmediet 22. Fig. 4 very schematically illustrates an electronic control unit 18 comprising an execution means 19, such as a central processor unit (CPU), for executing computer software. The execution means 19 communicates with a memory 20, for example of the RAM type, via a data bus 21. The control unit 18 also comprises data storage medium 22, for example in the form of a Flash memory or a memory of the type ROM, PROM, EPROM or EEPROM. The execution means 19 communicates with the data storage medium 22 via the data bus 21. A computer program comprising computer program code for implementing a method according to the invention, for example in accordance with the embodiment illustrated in Fig. 3, is stored on the data storage medium 22.

Uppfinningen är givetvis inte pa nagot s5tt begransad till de ovan beskrivna utforingsformerna, utan en mangd mojligheter till modifikationer darav torde vara uppenbara far en fackman pa omradet utan att denne for den skull avviker fran uppfinningens ram sadan denna definieras i bifogade patentkrav. The invention is of course not in any way limited to the embodiments described above, but a number of possibilities for modifications thereof should be apparent to a person skilled in the art without departing from the scope of the invention as defined in the appended claims.

Det papekas att det hos motorfordonet kan finnas andra komponenter an de visade, vilka har en funktion som är beroende av om namnda rem är hel eller avbruten och vars funktion kan kontrolleras for att bestamma om rembrott foreligger eller ej nar 12 namnda medel indikerar att generatorn inte fungerar som den ska. 13 It is pointed out that the motor vehicle may have other components than those shown, which have a function which depends on whether said belt is intact or interrupted and whose function can be checked to determine if belt failure exists or not when said means indicates that the generator does not works properly. 13

Claims (15)

Patentkrav 1. Forfarande for detektering av brott pa en rem (1) som är anordnad i ett motorfordon for att drivas av en forbrannings- motor (2) och darigenom sjalv driva atminstone en generator (3) och en kylvatskepump (4), varvid fordonet uppvisar medel (5) utformade att faststalla tillstandet hos generatorns funktion och sanda ut en signal vid klanderfri funktion hos genera-torn, kannetecknat darav, att det innefattar stegen attA method for detecting breakage of a belt (1) arranged in a motor vehicle for being driven by an internal combustion engine (2) and thereby itself driving at least one generator (3) and a cooling water pump (4), the vehicle have means (5) designed to determine the state of operation of the generator and transmit a signal in fault-free operation of the generator, characterized in that it comprises the steps of 1. bestamma att en forutsattning far forekomst av brott pa namnda rem (1) ar att namnda medel (5) upphor att sanda ut namnda signal, 2. kontrollera, vid upphorande av namnda medel att sanda ut namnda signal, en av ett brott pa namnda rem beroende funktion hos en annan komponent (4, 9-12) has fordonet an generatorn (3), och 3. bestamma att resultatet av namnda kontroll avgar om brott pa namnda rem forekommer eller ej satillvida att brott pa remmen (1) bestams forekomma om och endast om kon- trollen av funktionen hos namnda komponent indikerar detta.1. determine that a precondition for the occurrence of a breach on said belt (1) is that said means (5) ceases to transmit said signal, 2. check, upon cessation of said means to transmit said signal, one of a breach on said belt dependent function of another component (4, 9-12) has the vehicle on the generator (3), and 3. determining that the result of said checking determines whether or not a break in said belt occurs insofar as a break in the belt (1) is determined occur if and only if the check of the function of said component indicates this. 2. Forfarande enligt krav 1, kannetecknat darav, att i steg b) utfors funktionskontrollen genom att direkt eller indirekt mata varvtalet hos en namnd komponent (4, 9-11) som namnda rem är anordnad att rotera.Method according to claim 1, characterized in that in step b) the function check is performed by directly or indirectly feeding the speed of a said component (4, 9-11) which said belt is arranged to rotate. 3. Forfarande enligt krav 2, kannetecknat darav, att i steg b) mats varvtalet has ett hjul hos namnda kylvatskepump (4). 14Method according to claim 2, characterized in that in step b) the speed is fed to have a wheel of said cooling water pump (4). 14 4. Forfarande enligt krav 2, kannetecknat darav, att i steg b) mats varvtalet has en av namnda rem (1) driven flakt (9).Method according to claim 2, characterized in that in step b) the speed is fed by having a plane (9) driven by said belt (1). 5. Forfarande enligt krav 2, kannetecknat darav, att det utfors has ett fordon med en brytrulle (11) anordnad att styra och lanka om namnda rem (1), och att i steg b) mats varvtalet hos brytrullen.Method according to claim 2, characterized in that a vehicle is carried out with a switch roller (11) arranged to steer and rewind said belt (1), and that in step b) the speed of the breaker roller is fed. 6. Forfarande enligt krav 2, kannetecknat darav, att det utfors has ett fordon som uppvisar en luftkonditioneringsanlaggning som drivs av ett hjul (10) drivet av namnda rem (1) att rotera, och att i steg b) mats varvtalet has namnda hjul.Method according to claim 2, characterized in that a vehicle having an air conditioning system driven by a wheel (10) driven by said belt (1) is rotated, and that in step b) the speed is fed to said wheel. 7. Forfarande enligt krav 1, kannetecknat darav, att det utfors has ett fordon med en spannrulle anordnad rorlig till anliggning mot en namnd rem far att spanna denna, och att i steg b) mats laget has spannrullen.7. A method according to claim 1, characterized in that a vehicle is carried out with a tensioning roller arranged movable to abut against a named belt for tensioning it, and that in step b) the team has the tensioning roller. 8. Forfarande enligt krav 1, kannetecknat darav, att det utfors pa ett fordon med en ytterligare generator (12) utformad att drivas av namnda rem (1) och att styras av en regulator skild fran en regulator anordnad att styra namnda atminstone ena generator, varvid fordonet uppvisar organ (17) utformade att faststalla tillstandet has den ytterligare generatorns funktion och sanda ut en signal vid klanderfri funktion has denna ytterligare generator, och att i steg b) kontrolleras funktionen has namnda ytterligare generator (12) genom att kontrollera am namnda signal utsands av namnda organ (17).A method according to claim 1, characterized in that it is performed on a vehicle with a further generator (12) designed to be driven by said belt (1) and to be controlled by a regulator separate from a regulator arranged to control said at least one generator, wherein the vehicle has means (17) designed to determine the state of operation of the additional generator and send out a signal in faultless operation of this additional generator, and that in step b) the function of said additional generator (12) is checked by checking said signal. broadcast by the said body (17). 9. Anordning for detektering av brott pa en rem (1) som är anordnad i ett motorfordon for att drivas av en forbranningsmotor (2) och att darigenom sjalv driva atminstone en generator (3) och en kylvatskepump (4), vilken innefattar medel (5) ut- formade att faststalla tillstandet hos generatorns funktion och sanda ut en signal vid klanderfri funktion hos generatorn, kannetecknad darav, att den innefattar organ (7, 7', 7", 7", 17) anordnade att vid upphorande av utsandande av namnda signal kontrollera en av ett brott pa namnda rem (1) beroende funktion has en annan komponent (4, 9-12) hos fordonet an generatorn (3) samt en inrattning (6) utformad att mottaga information fran namnda medel och organ och bestamma att resultatet av namnda kontroll avgar om brott pa namnda rem farekommer eller ej satillvida att brott pa remmen (1) bestams forekomma om och endast om kontrollen av funktionen hos namnda komponent (4, 9-12) indikerar detta.Device for detecting breakage of a belt (1) arranged in a motor vehicle for driving an internal combustion engine (2) and thereby driving at least one generator (3) and a cooling water pump (4), which comprises means ( 5) designed to determine the state of operation of the generator and transmit a signal in the case of fault-free operation of the generator, characterized in that it comprises means (7, 7 ', 7 ", 7", 17) arranged that upon cessation of transmission of said signal checking a function dependent on a breakage of said belt (1) has another component (4, 9-12) of the vehicle on the generator (3) and a device (6) designed to receive information from said means and means and determine that the result of said inspection determines whether or not a failure of said belt is dangerous insofar as failure of the belt (1) is determined to occur if and only if the inspection of the function of said component (4, 9-12) indicates this. 10. Anordning enligt krav 9, kannetecknad darav, att namnda organ (7, 7', 7", 7") är utformade att direkt eller indirekt mata varvtalet hos en komponent (4, 9-11) utformad att av namnda rem (1) drivas att rotera.Device according to claim 9, characterized in that said means (7, 7 ', 7 ", 7") are designed to directly or indirectly supply the speed of a component (4, 9-11) designed to be formed by said belt (1 ) is driven to rotate. 11. Datorprogram som är laddningsbart direkt till internminnet hos en dator, vilket datorprogram innefattar datorprogramkod fOr bringande av datorn att styra stegen enligt nagot av kraven 1- 8 nar namnda datorprogram kors pa datorn.A computer program that is loadable directly into the internal memory of a computer, the computer program comprising computer program code for causing the computer to control the steps according to any of claims 1-8 when said computer program is crossed on the computer. 12. Datorprogramprodukt innefattande ett datalagringsmedium som är lasbart av en dator, varvid datorprogramkoden hos ett datorprogram enligt krav 11 är lagrat pa datalagringsmediet. 16A computer program product comprising a computer storage medium readable by a computer, wherein the computer program code of a computer program according to claim 11 is stored on the data storage medium. 16 13. Elektronisk styrenhet far en anordning far detektering av brott pa en rem som drivs av en forbranningsmotor hos ett motorfordon och sjalv driver en generator och en kylvatskepump hos fordonet innefattande ett exekveringsmedel (19), ett till exekveringsmedlet anslutet minne (20) och ett till exekveringsmedlet anslutet datalagringsmedium (22), varvid datorprogramkoden hos ett datorprogram enligt krav 10 är lagrat pa namnda datalagringsmedium.An electronic control unit comprises a device for detecting breakage of a belt driven by an internal combustion engine of a motor vehicle and itself drives a generator and a cooling water pump of the vehicle comprising an execution means (19), a memory (20) connected to the execution means and an additional the execution means connected data storage medium (22), the computer program code of a computer program according to claim 10 being stored on said data storage medium. 14. Motorfordon, kannetecknat darav, att det innefattar en anordning enligt krav 9 eller 10.Motor vehicle, characterized in that it comprises a device according to claim 9 or 10. 15. Motorfordon enligt krav 14, kannetecknat darav, att det är ett hjulburet motorfordon, sasom en lastbil eller buss.Motor vehicle according to claim 14, characterized in that it is a wheeled motor vehicle, such as a truck or bus.
SE1350807A 2013-07-01 2013-07-01 Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle SE537273C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE1350807A SE537273C2 (en) 2013-07-01 2013-07-01 Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle
DE102014009509.6A DE102014009509B4 (en) 2013-07-01 2014-06-26 Method and device for detecting broken belts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1350807A SE537273C2 (en) 2013-07-01 2013-07-01 Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle

Publications (2)

Publication Number Publication Date
SE1350807A1 true SE1350807A1 (en) 2015-01-02
SE537273C2 SE537273C2 (en) 2015-03-24

Family

ID=52106367

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1350807A SE537273C2 (en) 2013-07-01 2013-07-01 Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle

Country Status (2)

Country Link
DE (1) DE102014009509B4 (en)
SE (1) SE537273C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210861A1 (en) 2015-06-12 2016-12-15 Ford Global Technologies, Llc Method for monitoring a traction mechanism drive of an internal combustion engine and internal combustion engine for carrying out such a method
US20200126327A1 (en) * 2018-10-22 2020-04-23 GM Global Technology Operations LLC Method and apparatus for serpentine belt failure detection and mitigation
DE102021005762A1 (en) 2021-11-22 2023-05-25 Mercedes-Benz Group AG Alternatorless engine system for a motor vehicle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263578A (en) * 1978-06-08 1981-04-21 Nissan Motor Company, Limited Belt drive connection malfunction sensor
FR2605110B1 (en) * 1986-10-14 1989-04-28 Equip Electr Moteurs DEVICE FOR DETECTING THE SLIDING OF THE DRIVE BELT OF AN ELECTRIC GENERATING MACHINE DRIVEN BY A MOTOR
JPH11182640A (en) * 1997-12-19 1999-07-06 Mitsubishi Agricult Mach Co Ltd Automatically operating tension clutch mechanism
BE1012574A6 (en) * 1999-03-29 2000-12-05 Driessche Jean Vanden Transmission system including a device for detecting the breakage of thetransmission belt, particularly the transmission belt between the crankshaftand the cam shaft of an engine
US6834228B2 (en) * 2001-10-25 2004-12-21 The Gates Corporation Belt drive system with automatic belt tension control
JP2003314415A (en) * 2002-04-23 2003-11-06 Honda Motor Co Ltd Abnormality detection device for belt mechanism
US20060054128A1 (en) 2004-09-15 2006-03-16 Neil Allyn Apparatus and method for detecting coolant belt slippage
US8447449B2 (en) * 2010-12-21 2013-05-21 GM Global Technology Operations LLC Belt slip detection diagnostic

Also Published As

Publication number Publication date
SE537273C2 (en) 2015-03-24
DE102014009509A1 (en) 2015-01-08
DE102014009509B4 (en) 2022-06-02

Similar Documents

Publication Publication Date Title
CN104176060B (en) A kind of electric automobile whole failure sorted processing method
EP1451448B1 (en) Gas turbine engine broken shaft detection system
JP4910766B2 (en) Fan failure diagnosis device, fan failure diagnosis method and program
US9110451B2 (en) Motor control system and safety monitoring system therefor
US9685758B2 (en) Laser system having fault diagnosis function
US9057750B2 (en) Test of a testing device for determining a voltage state of a high-voltage vehicle electrical system
KR101534914B1 (en) Control device and method for cooling battery of vehicle
SE1350807A1 (en) Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle
US9735452B2 (en) Apparatus and method for monitoring component breakdown of battery system
CN103648828B (en) Method and apparatus for running vehicle
CN112187118A (en) Vehicle drive device
US9214045B1 (en) Flash memory express erase and program
CN107472026A (en) Fault handling method, system and the vehicle of electromotor cooling system
US10144303B2 (en) Monitoring device for a vehicle and method for monitoring a vehicle
JPH02501960A (en) Monitoring method and circuit device for operating elements controlled by computer
CN116154913A (en) Charger (charger)
SE537274C2 (en) Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle
JP2017218111A (en) Vehicle control device
SE1350809A1 (en) Method and apparatus for detecting strap rupture on a strap arranged in a motor vehicle
CN102350952B (en) Automobile air bag restraint system monitoring system, air bag restraint system monitoring method and automobile
US20190016357A1 (en) System and method for vehicle diagnostics
US20230177894A1 (en) Information processing apparatus and information processing method
JP2015033179A (en) Vehicle controller and vehicle control method
KR101887030B1 (en) Apparatus for controlling cooling fan of vehicle
EP2843388B1 (en) Drive shaft detection for pump or motor protection