CN104792973A - Detection device and detection method for estimating vehicle-mounted engine oil life - Google Patents
Detection device and detection method for estimating vehicle-mounted engine oil life Download PDFInfo
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- CN104792973A CN104792973A CN201510189063.0A CN201510189063A CN104792973A CN 104792973 A CN104792973 A CN 104792973A CN 201510189063 A CN201510189063 A CN 201510189063A CN 104792973 A CN104792973 A CN 104792973A
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Abstract
The invention relates to a detection device and a detection method for estimating vehicle-mounted engine oil life. The detection device comprises an oil inlet (1), an engine oil tank (2), a transparent engine oil path (3), an LED lamp (5), an LED lamp power supply wiring column (4), a light-sensitive element (8), a light-sensitive element wiring column (9), a temperature measurement element (6), a temperature measurement element wiring column (10), an engine oil pump (7) and a detection circuit board arranged outside an oil bottom housing, wherein the circuit board comprises a light-sensitive element detection circuit, a signal amplification circuit, an A/D (analog/digital) conversion circuit, a single-chip microcomputer system, a storage circuit, a display circuit, a power supply module and the like. The method for estimating the engine oil life is used for storing data of engine oil with different types and brands in a memory of a system. When the system runs, current detected engine oil life can be obtained through table lookup, and actual test parameters are compared with database data, so that the residual engine oil life is estimated. The device can enable a car owner to see the engine oil life at any time in a driving process, thereby providing a reference for the car owner during engine oil replacement.
Description
Technical field
The present invention relates to oil life detection field, especially a kind of pick-up unit and life prediction method thereof with oil life measuring ability.
Background technology
Along with development in science and technology, shared by domestic automobile industry, GDP proportion increases year by year, also progressively improves in the status of national economy.End in October, 2014, the vehicle guaranteeding organic quantity of China is 2.53 hundred million, 1.41 hundred million, automobile., there is a series of problem about Motor Maintenance in the continuous increase of automobile occupation rate.The work of machine oil to motor car engine plays the effects such as lubrication, cleaning, cooling, sealing, anticorrosion, shock absorbing load.Scientifical use machine oil is the important guarantee reducing engine capacity consumption, alleviate rubbing wear, increasing service life of engine.The impacts such as high temperature, vibration, friction are in use subject to due to engine motor oil, can be progressively aging, its effect played will progressively weaken.For this reason, accurately detect machine oil quality, judge that the time changing aging machine oil just seems very important, if change oil early, machine oil will be caused to waste, infringement car owner interests; Late if change oil, then easy damage is caused to engine, affect engine life, even cause driving accident.
According to incompletely statistics, the external hydraulic component failures overwhelming majority is caused by oil pollution, and the situation of domestic oil pollution is even more serious compared with abroad.Assessment machine oil quality, determines that the machine oil drain period is the important process of machine oil O&M.The major parameter weighing machine oil quality comprises machine oil kinetic viscosity, specific inductive capacity and density.Machine oil kinetic viscosity is the most important physical and chemical index of machine oil, and reflection engine oil flow viscosity size, determines one of principal element of oil film thickness.Kinetic viscosity represents machine oil viscosity internal friction size.Specific inductive capacity is the coefficient representing machine oil insulation characterisitic, a main macroscopic physical quantity of reflection machine oil internal electrical polarization behavior.Machine oil density is the physical quantity characterizing machine oil physical characteristics.Determine that machine oil oil changing interval mainly comprises following three class methods at home and abroad at present: one is chemical analysis, namely regular sample examination is carried out to automotive engine oil, chemical analysis is carried out to the physical and chemical parameter of machine oil.Although chemical analysis detects accurately, need special chemical analysis instrument, complicated operation, the time is long, and efficiency is low.Two is empiric observation methods, namely changes machine oil when engine cumulative activation reaches certain hour or vehicle driving mileage adds up to reach certain value.Although empirical method is simple, not accurate enough, easily to cause too early or evening changes oil excessively.Three is dielectimetries, by machine oil as a kind of dielectric, utilizes specific inductive capacity to reflect machine oil quality.This method has a defect: be difficult to determine that machine oil is changed oil lower limit.
Summary of the invention
The object of the invention is: provide a kind of vehicle-mounted machine life of oil to estimate pick-up unit and detection method thereof, this pick-up unit can measure quality and the temperature of machine oil in real time, oil life is made simultaneously and estimating, the time changing machine oil for car owner provides reference, increasing service life of engine, guarantee driving safety.
For making up the defect of existing detection technique, realize above-mentioned purpose, the technical solution used in the present invention is: light beam, through test machine oil, is irradiated on light activated element and forms projected area.When contaminant particles in machine oil passes through machine oil detection zone along direction of engine oil flow, because the particle in liquid stream shelters from the some light of machine oil detection zone, the light intensity decays that light activated element receives, the intensity of variation of light intensity just reflects oil pollution degree.Light intensity is more weak, and the contaminated degree of machine oil is stronger, and vice versa.The light signal experienced directly can be converted to electric signal by light activated element, can determine the contaminated degree of machine oil according to the stool and urine of this electric signal.Meanwhile, according to the oil temperature information of temperature sensor monitors, adopt the model of Multi-sensor Fusion just can realize detecting estimating of oil life.
Described vehicle-mounted machine life of oil is estimated pick-up unit and is comprised oil-in (1), sump (2), transparent engine oil passage (3), LED (5), LED supplies electric wiring terminal (4), light activated element (8), light activated element binding post (9), temperature element (6), temperature element binding post (10), lubricating oil pump (7) and the testing circuit plate be placed in outside oil sump; Wherein circuit board comprises light activated element testing circuit, signal amplification circuit, A/D change-over circuit, Single Chip Microcomputer (SCM) system, memory circuit, display circuit, power module etc.; LED center is just to light activated element center; LED is powered by power module by binding post; Light activated element is connected with testing circuit plate by binding post, and temperature element is connected with testing circuit plate by temperature element binding post, and connecting line all adopts shielding line; Testing circuit buttress calculates the life-span of machine oil according to light activated element changing value; Light activated element is very large by the impact of temperature, and the real time temperature according to database data and machine oil carries out temperature compensation to oil life measurement, and measuring accuracy is improved greatly; Finally by display display result.
Described oil life predictor method: by different model, the data of different brands machine oil are stored in the storer of system.During system cloud gray model, by tabling look-up the life-span that can draw current surveyed machine oil, actual test parameter and database data are compared, thus estimate out the remaining life of machine oil.Specifically comprise following steps:
S1, device power on, and LED diode is luminous, formed and detect light between transparent pipeline;
In S2, machine oil ingress engine oil-piping, the light intensity causing light activated element to receive changes, exporting change signal on light activated element stem, photoelectric detective circuit is utilized to convert the changing value that stem exports to voltage and be input in signal amplification circuit, signal after amplification is input in A/D circuit, and A/D change-over circuit converts magnitude of voltage to digital signal and inputs Single Chip Microcomputer (SCM) system simultaneously;
Oil temperature experienced by S3, temperature element (6), transmits signal to Single Chip Microcomputer (SCM) system by temperature element stem (10);
S4, Single Chip Microcomputer (SCM) system obtain data analysis process according to internal database to S2, and rough calculation goes out oil life, and the oil temperature data simultaneously utilizing S3 to obtain, revise oil life, thus obtains accurate oil life value;
The oil life data that S5, storage S4 obtain, and in the upper display of display (11).
Beneficial effect of the present invention is as follows:
1, LED and light activated element are all directly installed on pipeline both sides, and installation and removal are convenient;
2, testing circuit plate and photoelectric sensor separated, eliminate circuit board impact that machine oil is used;
3, use transparent material engine oil pipeline, be convenient to propagation and the detection of light source;
4, whole testing process realizes non-contact measurement, does not affect the use of machine oil;
5, according to database data and machine oil real time temperature, light activated element changing value is compensated, measuring accuracy is improved greatly;
6, testing circuit plate structure is simple, low in energy consumption, volume is little is convenient to installation.
Accompanying drawing explanation
Describe exemplary embodiment of the present invention in more detail by referring to accompanying drawing, above and other aspect of the present invention and advantage will become and more be readily clear of, in the accompanying drawings:
The structural representation that Fig. 1 is of the present invention;
Fig. 2 testing circuit plate of the present invention hardware block diagram;
Fig. 3 Photoelectric Detection fundamental diagram of the present invention;
Fig. 4 testing circuit plate of the present invention software flow pattern;
Fig. 5 testing circuit plate of the present invention scheme of installation.
Embodiment
Below in conjunction with some embodiments pick-up unit is estimated to vehicle-mounted machine life of oil of the present invention and detection method is described further.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
As shown in Figure 1, from physical construction, vehicle-mounted machine life of oil estimates pick-up unit primarily of oil-in (1), sump (2), transparent engine oil passage (3), LED (5), LED supplies electric wiring terminal (4), light activated element (8), light activated element binding post (9), temperature element (6), temperature element binding post (10), the compositions such as lubricating oil pump (7).
As shown in Figure 2, testing circuit plate mainly comprises photoelectric detective circuit, signal amplification circuit, A/D change-over circuit, microcontroller system circuit, memory circuit, temperature measurement circuit and display circuit etc.Wherein photoelectric detective circuit, signal amplification circuit, A/D change-over circuit, microcontroller system circuit connect in turn.
As shown in Figure 3, be the fundamental diagram of oil life Photoelectric Detection.LED (5) sends parallel beam and is radiated on light activated element (8) forms projected area through greasy dirt (13).When the machine oil polluted is by detection zone, because the pollutant in liquid stream has blocked some light, the light intensity decays that light activated element receives, detected the change of light activated element output signal by photoelectric detective circuit plate (14), the intensity of variation of light intensity just reflects the pollution level of machine oil.
As shown in Figure 4, be the software section of this machine oil testing circuit plate, software adopt C language from bottom to top modularization write, mainly realize the analysis display of the collection of data, computing, storage and testing result.After single-chip microcomputer power-up initializing, check whether reset, then A/D conversion is carried out to input signal, then by single-chip microcomputer, analytical calculation is carried out to digital signal and obtain test result, send display to show test result simultaneously.
Fig. 5 is testing circuit plate scheme of installation of the present invention, by testing circuit plate and display (11) after encapsulation process, through crash roll, is arranged on the bridge panel (12) of automobile.In driving procedure, car owner can see the life-span of machine oil at any time, reminds car owner to change machine oil in time.
The specific works course of work of the present invention:
S1, device power on, and LED diode is luminous, formed and detect light between transparent pipeline;
In S2, machine oil ingress engine oil-piping, the light intensity causing light activated element to receive changes, exporting change signal on light activated element stem, photoelectric detective circuit is utilized to convert the changing value that stem exports to voltage and be input in signal amplification circuit, signal after amplification is input in A/D circuit, and A/D change-over circuit converts magnitude of voltage to digital signal and inputs Single Chip Microcomputer (SCM) system simultaneously;
Oil temperature experienced by S3, temperature element (6), transmits signal to Single Chip Microcomputer (SCM) system by temperature element stem (10);
S4, Single Chip Microcomputer (SCM) system obtain data analysis process to S2, and rough calculation goes out oil life, and the oil temperature data simultaneously utilizing S3 to obtain, revise oil life, thus obtains accurate oil life value;
The oil life data that S5, storage S4 obtain, and in the upper display of display (11).
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. vehicle-mounted machine life of oil estimates pick-up unit, it is characterized in that: described vehicle-mounted machine life of oil is estimated pick-up unit and comprised oil-in (1), sump (2), transparent engine oil passage (3), LED (5), LED is for electric wiring terminal (4), light activated element (8), light activated element binding post (9), temperature element (6), temperature element binding post (10), lubricating oil pump (7) and the testing circuit plate be placed in outside oil sump; Wherein circuit board comprises light activated element testing circuit, signal amplification circuit, A/D change-over circuit, Single Chip Microcomputer (SCM) system, memory circuit, display circuit, power module.
2. vehicle-mounted machine life of oil estimates pick-up unit as claimed in claim 1, it is characterized in that: LED (5) center is just to light activated element (8) center; LED (5) is powered by power module for electric wiring terminal (4) by LED; Light activated element (8) is connected with testing circuit plate by light activated element binding post (9), and temperature element (6) is connected with testing circuit plate by temperature element binding post (10), and connecting line all adopts shielding line.
3. as described in claim 1 ~ 2, vehicle-mounted machine life of oil estimates pick-up unit, it is characterized in that: testing circuit buttress calculates the life-span of machine oil according to light activated element changing value and the real time temperature according to database data and machine oil carries out temperature compensation to oil life measurement, and measuring accuracy is improved greatly; Finally by display (11) display result.
4. vehicle-mounted machine life of oil estimates detection method, it is characterized in that: by the qualitative data of different model, different brands machine oil stored in the storer of system, during system cloud gray model, by tabling look-up the life-span that can draw current surveyed machine oil, actual test parameter and database data are compared, thus estimates out the remaining life of machine oil.
5., as the vehicle-mounted machine life of oil in Claims 1 to 4 as described in any one estimates detection method, it is characterized in that: comprise the steps:
S1, device power on, and LED diode is luminous, formed and detect light between transparent pipeline;
In S2, machine oil ingress engine oil-piping, the light intensity causing light activated element to receive changes, exporting change signal on light activated element stem, photoelectric detective circuit is utilized to convert the changing value that stem exports to voltage and be input in signal amplification circuit, signal after amplification is input in A/D circuit, and A/D change-over circuit converts magnitude of voltage to digital signal and inputs Single Chip Microcomputer (SCM) system simultaneously;
Oil temperature experienced by S3, temperature element (6), transmits signal to Single Chip Microcomputer (SCM) system by temperature element stem (10);
S4, Single Chip Microcomputer (SCM) system obtain data analysis process according to internal database to S2, and rough calculation goes out oil life, and the oil temperature data simultaneously utilizing S3 to obtain, revise oil life, thus obtains accurate oil life value;
The oil life data that S5, storage S4 obtain, and in the upper display of display (11).
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| CN201510189063.0A CN104792973A (en) | 2015-04-21 | 2015-04-21 | Detection device and detection method for estimating vehicle-mounted engine oil life |
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| CN201510189063.0A CN104792973A (en) | 2015-04-21 | 2015-04-21 | Detection device and detection method for estimating vehicle-mounted engine oil life |
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Cited By (6)
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| CN107367601A (en) * | 2017-06-30 | 2017-11-21 | 哈尔滨工业大学（威海） | A kind of automobile engine oil durability analysis Forecasting Methodology based on big data |
| CN108088764A (en) * | 2017-12-15 | 2018-05-29 | 佛山租我科技有限公司 | New-energy automobile vehicle monitor terminal life testing method based on Coffin-Manson models |
| CN108287232A (en) * | 2017-11-10 | 2018-07-17 | 王树伟 | A kind of engine lubricating oil is health management system arranged |
| CN108562724A (en) * | 2017-12-20 | 2018-09-21 | 温州大学激光与光电智能制造研究院 | A kind of engine oil quality detecting system and its detection method |
| CN112400110A (en) * | 2018-07-11 | 2021-02-23 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
| CN115163251A (en) * | 2022-06-28 | 2022-10-11 | 徐州徐工矿业机械有限公司 | Operation and state detection control system for power and transmission system of engineering machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107367601A (en) * | 2017-06-30 | 2017-11-21 | 哈尔滨工业大学（威海） | A kind of automobile engine oil durability analysis Forecasting Methodology based on big data |
| CN108287232A (en) * | 2017-11-10 | 2018-07-17 | 王树伟 | A kind of engine lubricating oil is health management system arranged |
| CN108088764A (en) * | 2017-12-15 | 2018-05-29 | 佛山租我科技有限公司 | New-energy automobile vehicle monitor terminal life testing method based on Coffin-Manson models |
| CN108562724A (en) * | 2017-12-20 | 2018-09-21 | 温州大学激光与光电智能制造研究院 | A kind of engine oil quality detecting system and its detection method |
| CN112400110A (en) * | 2018-07-11 | 2021-02-23 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
| CN112400110B (en) * | 2018-07-11 | 2024-02-20 | 瓦锡兰芬兰有限公司 | Apparatus, device and computer-implemented method for determining remaining life of engine oil in an engine |
| CN115163251A (en) * | 2022-06-28 | 2022-10-11 | 徐州徐工矿业机械有限公司 | Operation and state detection control system for power and transmission system of engineering machinery |
| CN115163251B (en) * | 2022-06-28 | 2024-03-19 | 徐州徐工矿业机械有限公司 | Engineering machinery power and transmission system operation and state detection control system |
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