EP0836159A2 - Verbesserungen an und bezüglich auf Antriebsmaschinen - Google Patents

Verbesserungen an und bezüglich auf Antriebsmaschinen Download PDF

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Publication number
EP0836159A2
EP0836159A2 EP97650041A EP97650041A EP0836159A2 EP 0836159 A2 EP0836159 A2 EP 0836159A2 EP 97650041 A EP97650041 A EP 97650041A EP 97650041 A EP97650041 A EP 97650041A EP 0836159 A2 EP0836159 A2 EP 0836159A2
Authority
EP
European Patent Office
Prior art keywords
energy input
prime mover
load
conditions
optimum
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP97650041A
Other languages
English (en)
French (fr)
Other versions
EP0836159A3 (de
Inventor
Conor O'donoghue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONOGHUE CONOR O
Original Assignee
DONOGHUE CONOR O
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 DONOGHUE CONOR O filed Critical DONOGHUE CONOR O
Publication of EP0836159A2 publication Critical patent/EP0836159A2/de
Publication of EP0836159A3 publication Critical patent/EP0836159A3/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/006—Indicating maintenance
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles

Definitions

  • the present invention relates to general wear and useful life assessment of prime movers having moving parts.
  • the term "prime mover” is used to include internal combustion engines, turbines, pumps, electric motors, and indeed any other machine or apparatus which converts one source of energy into an output which involves moving parts, which by their very nature are subject to wear and tear due to frictional and other losses.
  • lubricants may over time and when subject to certain use conditions will loose their effectiveness.
  • this invention is primarily directed to wear per se and thus useful life of an engine the accumulated energy input over a period since for example the last replacement of a lubricant or operating fluid for the prime mover or parts associated therewith eg. brakes, of a vehicle may be a very accurate indication that other parts need to be attended to.
  • the term "energy input” in this specification is used in the broadest sense of potential energy input.
  • the total energy available from a fossil fuel such as petrol may be many times in excess of the actual energy that can be converted efficiently by a petrol driven internal combustion engine.
  • the energy input to the engine is directly related to the volume of petrol delivered to the engine.
  • measuring the volume of petrol delivered to an engine effectively measures the energy input, not strictly speaking the gross energy inputted to the engine, but the amount of energy which the engine can efficiently convert into work output.
  • Substantially the same considerations apply to other fuels such as diesel, natural gas, etc. and indeed the same applies, for example, to electricity where there is a much higher usage of the potential energy in an electric motor.
  • optimum base energy input is a term used to indicate that total energy input to the engine which when the engine has received that total energy input would be such as to mean that the engine has experienced such wear as to have reached either its total useful life, when it should be scrapped, or some period within its life when it should be subjected to some form of maintenance procedure. This may in its simplest be an estimated total energy input or may be determined according to the invention.
  • environment conditions is used in this specification to cover general operating conditions of temperature, heat, altitude, dust, corrosive marine and other such conditions.
  • the present invention is directed towards providing a method of determining the probable wear experienced by a prime mover having moving parts at any stage during its operating life.
  • the present invention envisages storing in an information processor a measure of the amount of work that a prime mover is designed to perform and then feeding into the information processor the cumulative amount of work performed and then producing a measure of the useful life remaining or the percentage of the useful life expended and hence the prime mover wear.
  • the fuel used and the fuel that should be used for the design life providing the necessary measure of output. It should be noted that this is not the same as in the prior attempts at achieving this result.
  • the invention provides a method of determining the optimum base energy input which comprises the steps of:
  • the invention further provides a method in which the steps of:
  • load conditions such as maximum load, overload, idle conditions and ordinary operating conditions, it is possible to further increase the accuracy of the measurement of the actual work done by the engine or prime mover.
  • auxiliary prime mover having at least two sources of energy input, namely a primary source and an auxiliary source comprising:
  • the method of the invention also comprises:
  • the invention further provides measuring each time the engine starts adding a stop/start energy input to the accumulated energy input.
  • the advantage of this is that in addition to having a correction factor for wear experienced due to different load conditions, it is possible to input a factor for stopping and starting. It has long been appreciated that an engine which is stopped and started regularly, for example, a motor car on relatively short runs is a lot more prone to wear than an engine which is run, for example, for 100 miles without stopping. Much more wear will be experienced by an internal combustion engine which has in 100 miles of running experienced forty stops and starts from cold, than will an engine which has been run continuously for 100 miles under favourable conditions or even one doing forty stops and starts but not from cold.
  • a not inconsiderable advantage to a manufacturer of such equipment is that the data gathered in respect of the operating characteristics of a specific prime mover will allow a much more accurate assessment of claims by customers of non-performance or failure of prime movers supplied. A purchaser of equipment is also in a better position to assess the value of a potential purchase with this information available.
  • the information obtained on taking a prime mover out of service may be compared with the actual wear achieved so that the measurement figures and base figures may be more accurately calculated.
  • this measurement and assessment function may be ideally provided by standard instrumentation and by well known electronic equipment. Ideally a microchip will be provided carrying the necessary programming. Further the information may be recorded in some transfer proof instrumentation.
  • a prime mover in this example a diesel engine 1 having a diesel supply pump 2 which incorporates a flow recording meter.
  • the flow recording meter in turn feeds a micro-processor 3 which in turn delivers information to a recording instrument 4 on the dashboard of the vehicle.
  • the flow of fuel is measured in the pump 2 and the micro-processor 3 receives the information, analyses in accordance with the methods described above, depending on the sophistication of the method being used and delivers the information to the instrument 4 so that the driver has displayed on the instrument the potential wear which potential wear will allow the driver to decide when routine maintenance is required, as it will be appreciated that the engine may not have worn appreciably, but if the amount of potential wear is such to suggest that possibly oil needs replacing etc. It will also give a much more accurate assessment of the wear on the engine to any potential purchaser.
  • FIG. 2 there is illustrated another prime mover in this case a petrol I.C. engine 10 having a petrol pump 11 and a gas pump 12. It will be appreciated that both the petrol pump 11 and the gas pump 12 have ancillary equipment. Both the petrol pump 11 and the gas pump 12 feed information to a micro-processor 13 which in turn feeds information to a recording dial 14 on the dashboard of the vehicle.
  • the altitude, ambient temperatures, humidity and air composition generally may have a considerable effect on the operation of an IC engine and thus it is envisaged that suitable ambient condition analysis and recorders may be used to further provide load compensating factors.
  • temperature is a major factor in the wear of many materials whether they be subject to friction inducing wear between contacting parts or simply subjected to heat, an example of the former being a reciprocating piston and the latter an indirect combustion chamber.
  • measurements of temperature will in many instances be the prime data required.
  • the load compensating factors applied will be those appropriate for not just simply the environmental conditions but also for the actual prime mover conditions of which temperature will in most instances be the most important.
  • the particular parts or portion of the prime mover the temperature of which will be measured will vary from prime mover to prime mover. In some instances it will be bearing temperatures, in others lubricant temperatures, engine wall temperatures, etc.
  • the invention envisages the determination by measurement of environmental and prime mover conditions and the recording and comparison of these against energy input and the existing measure of probable wear to determine the potential pollutant emission of the prime mover under those conditions.
  • micro-processor programmable chip, etc.
  • this can be relatively easily and cheaply achieved. It is also envisaged that manufacturers already have most of this information available to them, which information is achieved from test results carried out in their factories prior to launching a new engine on the market.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)
EP97650041A 1996-10-09 1997-10-07 Verbesserungen an und bezüglich auf Antriebsmaschinen Withdrawn EP0836159A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IE960715 1996-10-09
IE960715 1996-10-09
IE970250 1997-04-04
IE970250 1997-04-04

Publications (2)

Publication Number Publication Date
EP0836159A2 true EP0836159A2 (de) 1998-04-15
EP0836159A3 EP0836159A3 (de) 1999-03-03

Family

ID=26319970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97650041A Withdrawn EP0836159A3 (de) 1996-10-09 1997-10-07 Verbesserungen an und bezüglich auf Antriebsmaschinen

Country Status (2)

Country Link
EP (1) EP0836159A3 (de)
IE (2) IE970729A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172717A3 (de) * 2000-07-11 2003-08-13 Komatsu Ltd. Vorrichtung, Verfahren, Computerprogramm und Aufzeichnungsmedium zur Leitung von Maschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551703A (en) 1981-04-10 1985-11-05 Bayerische Motoren Werke Ag Service interval signalling device for prime movers
US4630027A (en) 1981-02-06 1986-12-16 Bayerische Motoren Werke A.G. Service-interval display for motor vehicles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US463007A (en) * 1891-11-10 Switch-stand
US3602041A (en) * 1969-05-28 1971-08-31 Us Army Engine wear life measurement
DE3117951C2 (de) * 1981-05-06 1983-02-24 Audi Nsu Auto Union Ag, 7107 Neckarsulm Service-Intervall-Anzeigesystem für Kraftfahrzeuge
DE3234727A1 (de) * 1982-09-18 1984-03-22 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Verfahren zum festlegen des zeitpunktes fuer die wartung eines kraftfahrzeugs
DE3309892A1 (de) * 1983-03-18 1984-09-20 Bayerische Motoren Werke AG, 8000 München Verfahren zum regenerieren eines russfilters von brennkraftmaschinen
DE3728432A1 (de) * 1987-08-26 1989-03-16 Hans Georg Thiel Verfahren zur feststellung der wartungsintervalle bei kraftfahrzeugen
DE4038972C1 (de) * 1990-12-06 1991-11-07 Man Nutzfahrzeuge Ag, 8000 Muenchen, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630027A (en) 1981-02-06 1986-12-16 Bayerische Motoren Werke A.G. Service-interval display for motor vehicles
US4551703A (en) 1981-04-10 1985-11-05 Bayerische Motoren Werke Ag Service interval signalling device for prime movers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172717A3 (de) * 2000-07-11 2003-08-13 Komatsu Ltd. Vorrichtung, Verfahren, Computerprogramm und Aufzeichnungsmedium zur Leitung von Maschinen
US7065570B2 (en) 2000-07-11 2006-06-20 Komatsu Ltd. System, method, computer program, and recording medium for machine-management

Also Published As

Publication number Publication date
IES78912B2 (en) 1998-03-11
IES970728A2 (en) 1998-03-11
EP0836159A3 (de) 1999-03-03
IE970729A1 (en) 1998-04-22

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