CN109611229A - Engine oil path low pressure oil way monitoring method and engine - Google Patents
Engine oil path low pressure oil way monitoring method and engine Download PDFInfo
- Publication number
- CN109611229A CN109611229A CN201811465724.8A CN201811465724A CN109611229A CN 109611229 A CN109611229 A CN 109611229A CN 201811465724 A CN201811465724 A CN 201811465724A CN 109611229 A CN109611229 A CN 109611229A
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- China
- Prior art keywords
- controller
- overflow valve
- pressure
- engine
- value
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/228—Warning displays
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a kind of engines and engine low pressure oil way monitoring method, wherein engine low pressure oil way monitoring method comprising steps of S1, in the upper pressure limit value P0 of the controller setting overflow valve and cracking pressure value P1 of overflow valve, overflow valve and fuel gauging unit and company；S2, first pressure sensor is set in the outlet of fuel filter, controller receives the pressure value P of pressure sensor；S3, controller judge P, P0 and P1 value, as P>P0 or P<P1, enter step S4, otherwise return step S2；S4, controller alarm.In the outlet of fuel filter, first pressure sensor is set, pass through controller real-time reception first pressure sensor numerical value, and the cracking pressure value P1 with the upper pressure limit value P0 of overflow valve and overflow valve, and then judge whether low pressure oil way is in normal operating condition, when being in improper motion state, controller alarm, realizes and monitors to engine low pressure oil way.
Description
Technical field
The present invention relates to engine oil path failover technique field, in particular to a kind of engine low pressure oil way monitoring method.
The invention further relates to a kind of engines.
Background technique
At work, the fuel oil in fuel tank is delivered to oil transfer pump by low pressure oil way to engine, and oil transfer pump is low pressure combustion
Oil provides power, low pressure diesel is transported to high-pressure oil pump, the low pressure diesel from fuel tank is converted high pressure bavin by high-pressure oil pump
Oil.
On low pressure oil way, it is equipped with fuel filter, and along low-voltage fuel flow direction, the downstream of fuel filter and company
It is provided with overflow valve and fuel gauging unit, wherein overflow valve is mechanical valve, is opened after oil pressure reaches preset pressure.Fuel contents gauge
Amount unit is the structure for the fuel flow that metering passes through.Fuel filter is responsible for the impurity in filtered fuel, avoids impurity to combustion
The damage and corrosion of oil system.
During engine movements, in the case where clamping stagnation occurs in overflow valve, the pressure before fuel gauging unit can not
Balance, can not stablize so as to cause the adjusting of rail pressure, cause rail pressure fluctuation；The pressure limiting valve of common rail pipe is caused to open when serious, into
Enter limp-home mode.
Summary of the invention
The object of the present invention is to provide a kind of engine low pressure oil way monitoring methods, are supervised with realizing to engine low pressure oil way
It surveys.It is a further object of the present invention to provide a kind of engines.
To achieve the above object, the present invention provides a kind of engine low pressure oil way monitoring method, comprising steps of
The cracking pressure value P1 of S1, the upper pressure limit value P0 that overflow valve is set in controller and overflow valve, the overflow valve
With fuel gauging unit and company；
S2, first pressure sensor is set in the outlet of fuel filter, controller receives the pressure value of pressure sensor
P；
S3, the controller judge P, P0 and P1 value, as P>P0 or P<P1, enter step S4, otherwise return step S2；
S4, controller alarm.
Preferably, the outlet port of the fine filter of the fuel filter is arranged in the first pressure sensor.
Preferably, the controller passes through indicator light alarm.
Preferably, the controller passes through buzzer warning.
A kind of engine, including overflow valve, fuel gauging unit, controller, fuel filter and setting are in the fuel oil
The first pressure sensor in filter exit, the overflow valve and the fuel gauging unit and company, the controller receive
The pressure value P of the first pressure sensor, when P is greater than the upper pressure limit value P0 of overflow valve or when P is less than the unlatching of overflow valve
Pressure value P 1, the controller alarm.
Preferably, the warning device of the controller is indicator light.
Preferably, the warning device of the controller is buzzer.
Preferably, the outlet port of the fine filter of the fuel filter is arranged in the first pressure sensor.
In the above-mentioned technical solutions, engine low pressure oil way monitoring method provided by the invention, comprising steps of S1, controlling
The upper pressure limit value P0 of the device setting overflow valve processed and cracking pressure value P1 of overflow valve, overflow valve and fuel gauging unit and company；
S2, first pressure sensor is set in the outlet of fuel filter, controller receives the pressure value P of pressure sensor；S3, control
Device judges P, P0 and P1 value, as P>P0 or P<P1, enters step S4, otherwise return step S2；S4, controller alarm.
As can be seen from the above description, in engine low pressure oil way monitoring method provided by the present application, in fuel filter
Outlet first pressure sensor is set, by controller real-time reception first pressure sensor numerical value, and the pressure with overflow valve
The cracking pressure value P1 of power upper limit value P0 and overflow valve, and then judge whether low pressure oil way is in normal operating condition, when being in
When improper motion state, controller alarm is realized and is monitored to engine low pressure oil way.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart of engine low pressure oil way monitoring method provided by the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of engine provided by the embodiment of the present invention.
Wherein in Fig. 2: 1- first pressure sensor, 2- fuel filter, 3- fuel gauging unit, 4- overflow valve, 5- oil
Case, 6- oil rail.
Specific embodiment
Core of the invention is to provide a kind of engine low pressure oil way monitoring method, is supervised with realizing to engine low pressure oil way
It surveys.Another core of the invention is to provide a kind of engine.
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and embodiment party
The present invention is described in further detail for formula.
Fig. 1 and Fig. 2 are please referred to, in a specific embodiment, the engine low pressure that the specific embodiment of the invention provides
Oil circuit monitoring method, comprising steps of
The cracking pressure value P1 of S1, the upper pressure limit value P0 that overflow valve 4 is set in controller and overflow valve 4, wherein overflow
Valve 4 and fuel gauging unit 3 simultaneously connect；
S2, first pressure sensor 1 is set in the outlet of fuel filter 2, controller receives the pressure of pressure sensor
Value P；
S3, controller judge P, P0 and P1 value, as P>P0 or P<P1, enter step S4, otherwise return step S2；
S4, controller alarm.Wherein, controller, certainly can also be by aobvious by indicator light alarm or buzzer warning
Show that Display panel is alarmed.
When engine work: overflow valve 4 fully opens；The design cracking pressure of overflow valve 4 is P1, wherein different hairs
Pressure after the overflow valve 4 of motivation fully opens is different, and the application is not specifically limited.Because of overflow valve 4 and fuel gauging list
Member 3 is coordination, and the pressure before such overflow valve 4 and the pressure before fuel gauging unit 3 are essentially identical.
In the case that there is clamping stagnation in overflow valve 4；The pressure of P can be very high, is completely out of the overflow valve 4 normally set and presses
Power upper limit value P0, at this time P > P0, the pressure before fuel gauging unit 3 can not balance, can not stablize so as to cause the adjusting of rail pressure.
Controller receives the pressure value P of pressure sensor, and when judging P > P0, controller is alarmed, specifically, controller can pass through first
Type of alarm alarm, is specifically as follows buzzer or indicator light, and client is right according to rapid positioning failure mode and the fault point of alarming
Overflow valve 4 is detected.
Meanwhile can by monitoring fuel filter 2 after pressure come remind client to filter repair maintenance or
It is the investigation for reminding user to carry out pipeline；In engine work, overflow valve 4 is fully opened to reach, then P > P1；When
When monitoring P < P1, overflow valve 4 can not be opened, and function is lost；At this time two kinds there are two kinds may: pipeline leakage or fuel cleaning
The filter core of device 2 blocks；In the case where pipeline is not revealed；The resistance of fuel filter 2 is too big, and controller is alarmed at this time, tool
The type of alarm of body can alarm with the second type of alarm, specifically, the first type of alarm and the second type of alarm are different, visitor
Pipeline or filter core are detected in family, precisely detect convenient for client.
As can be seen from the above description, in the engine low pressure oil way monitoring method provided by the application specific embodiment,
In the outlet of fuel filter 2, first pressure sensor 1 is set, by controller real-time reception first pressure sensor numerical value,
And the cracking pressure value P1 with the upper pressure limit value P0 of overflow valve 4 and overflow valve 4, and then judge whether low pressure oil way is in normal
Operating status, when being in improper motion state, controller alarm is realized and is monitored to engine low pressure oil way.
It is preferred that the outlet port of the fine filter of fuel filter 2 is arranged in first pressure sensor 1, wherein along fuel oil stream
Dynamic direction, the coarse filter of fuel filter 2 are located at the upstream of fine filter.
A kind of engine provided by the present application include overflow valve 4, fuel gauging unit 3, controller, fuel filter 2 and
The first pressure sensor 1 in 2 exit of fuel filter, overflow valve 4 and fuel gauging unit 3 are set and connected, controller connects
The pressure value P for receiving first pressure sensor 1, when P is greater than the upper pressure limit value P0 of overflow valve 4 or when P is less than the unlatching of overflow valve 4
Pressure value P 1, controller alarm, wherein controller can also pass through display by indicator light alarm or buzzer warning certainly
Display panel alarm.
On the basis of above scheme, it is preferable that going out for the fine filter of fuel filter 2 is arranged in first pressure sensor 1
Mouth position, wherein the coarse filter of fuel filter 2 is located at the upstream of fine filter along fuel flow direction.
When engine work: overflow valve 4 fully opens；The design cracking pressure of overflow valve 4 is P1, wherein different hairs
Pressure after the overflow valve 4 of motivation fully opens is different, and the application is not specifically limited.Because of overflow valve 4 and fuel gauging list
Member 3 is coordination, and the pressure before such overflow valve 4 and the pressure before fuel gauging unit 3 are essentially identical.
In the case that there is clamping stagnation in overflow valve 4；The pressure of P can be very high, is completely out of the overflow valve 4 normally set and presses
Power upper limit value P0, at this time P > P0, the pressure before fuel gauging unit 3 can not balance, can not stablize so as to cause the adjusting of rail pressure.
Controller receives the pressure value P of pressure sensor, and when judging P > P0, controller is alarmed, specifically, controller can pass through first
Type of alarm alarm, is specifically as follows buzzer or indicator light, and client is right according to rapid positioning failure mode and the fault point of alarming
Overflow valve 4 is detected.
Meanwhile can by monitoring fuel filter 2 after pressure come remind client to filter repair maintenance or
It is the investigation for reminding user to carry out pipeline；In engine work, overflow valve 4 fully opens to reach, P > P1；Work as prison
When controlling P < P1, overflow valve 4 can not be opened, and function is lost；At this time two kinds there are two kinds may: pipeline leakage or filter core obstruction；
In the case where pipeline is not revealed；The resistance of the filter core of fuel filter 2 is too big；Controller is alarmed at this time, specifically, the report
Police's formula can alarm with the second type of alarm, specifically, the first type of alarm and the second type of alarm are different, client is to pipeline
Or filter core is detected, and is precisely detected convenient for client.
As can be seen from the above description, in the engine low pressure oil way monitoring method provided by the application specific embodiment,
In the outlet of fuel filter 2, first pressure sensor 1 is set, by controller real-time reception first pressure sensor numerical value,
And the cracking pressure value P1 with the upper pressure limit value P0 of overflow valve 4 and overflow valve 4, and then judge whether low pressure oil way is in normal
Operating status, when being in improper motion state, controller alarm is realized and is monitored to engine low pressure oil way.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of engine low pressure oil way monitoring method, which is characterized in that comprising steps of
The cracking pressure value P1 of S1, the upper pressure limit value P0 that overflow valve (4) are set in controller and overflow valve (4), the overflow
Valve (4) and fuel gauging unit (3) simultaneously connect；
S2, first pressure sensor (1) is set in the outlet of fuel filter (2), controller receives the pressure of pressure sensor
Value P；
S3, the controller judge P, P0 and P1 value, as P>P0 or P<P1, enter step S4, otherwise return step S2；
S4, controller alarm.
2. engine low pressure oil way monitoring method according to claim 1, which is characterized in that the first pressure sensor
(1) it is arranged in the outlet port of the fine filter of the fuel filter (2).
3. engine low pressure oil way monitoring method according to claim 1 or 2, which is characterized in that the controller passes through
Indicator light alarm.
4. engine low pressure oil way monitoring method according to claim 1 or 2, which is characterized in that the controller passes through
Buzzer warning.
5. a kind of engine, which is characterized in that including overflow valve (4), fuel gauging unit (3), controller, fuel filter
(2) and first pressure sensor (1) of the setting in the fuel filter (2) exit, the overflow valve (4) and the oil mass
Metering units (3) simultaneously connect, and the controller receives the pressure value P of the first pressure sensor (1), when P is greater than overflow valve (4)
Upper pressure limit value P0 or when P is less than the cracking pressure value P1 of overflow valve (4), the controller alarm.
6. engine according to claim 5, which is characterized in that the warning device of the controller is indicator light.
7. engine according to claim 5, which is characterized in that the warning device of the controller is buzzer.
8. the engine according to any one of claim 5-7, which is characterized in that the first pressure sensor (1) sets
It sets in the outlet port of the fine filter of the fuel filter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465724.8A CN109611229A (en) | 2018-12-03 | 2018-12-03 | Engine oil path low pressure oil way monitoring method and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811465724.8A CN109611229A (en) | 2018-12-03 | 2018-12-03 | Engine oil path low pressure oil way monitoring method and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611229A true CN109611229A (en) | 2019-04-12 |
Family
ID=66006915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811465724.8A Pending CN109611229A (en) | 2018-12-03 | 2018-12-03 | Engine oil path low pressure oil way monitoring method and engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN109611229A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211763A (en) * | 2020-09-03 | 2021-01-12 | 潍柴动力股份有限公司 | Fuel filter, fuel system and control method of fuel system |
| CN112924166A (en) * | 2021-03-17 | 2021-06-08 | 潍柴动力股份有限公司 | Overflow valve fault detection method and device, electronic equipment and storage medium |
| CN113931728A (en) * | 2021-01-19 | 2022-01-14 | 吉利汽车研究院（宁波）有限公司 | Oil vapor control method, device and system and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281184A (en) * | 2008-05-20 | 2009-12-03 | Denso Corp | Fuel supply control device and fuel supply system using the same |
| CN106246429A (en) * | 2016-08-30 | 2016-12-21 | 潍柴动力股份有限公司 | Engine fuel oil system and include the electromotor of this engine fuel oil system |
| CN106368834A (en) * | 2016-08-30 | 2017-02-01 | 潍柴动力股份有限公司 | Fuel system monitoring method and device, fuel system and engine |
| JP2018003636A (en) * | 2016-06-28 | 2018-01-11 | 株式会社デンソー | Fuel filter clogging determination device |
| CN108266294A (en) * | 2017-12-27 | 2018-07-10 | 潍柴动力股份有限公司 | Engine fuel oil system and engine |
-
2018
- 2018-12-03 CN CN201811465724.8A patent/CN109611229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281184A (en) * | 2008-05-20 | 2009-12-03 | Denso Corp | Fuel supply control device and fuel supply system using the same |
| JP2018003636A (en) * | 2016-06-28 | 2018-01-11 | 株式会社デンソー | Fuel filter clogging determination device |
| CN106246429A (en) * | 2016-08-30 | 2016-12-21 | 潍柴动力股份有限公司 | Engine fuel oil system and include the electromotor of this engine fuel oil system |
| CN106368834A (en) * | 2016-08-30 | 2017-02-01 | 潍柴动力股份有限公司 | Fuel system monitoring method and device, fuel system and engine |
| CN108266294A (en) * | 2017-12-27 | 2018-07-10 | 潍柴动力股份有限公司 | Engine fuel oil system and engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211763A (en) * | 2020-09-03 | 2021-01-12 | 潍柴动力股份有限公司 | Fuel filter, fuel system and control method of fuel system |
| CN113931728A (en) * | 2021-01-19 | 2022-01-14 | 吉利汽车研究院（宁波）有限公司 | Oil vapor control method, device and system and storage medium |
| CN112924166A (en) * | 2021-03-17 | 2021-06-08 | 潍柴动力股份有限公司 | Overflow valve fault detection method and device, electronic equipment and storage medium |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |
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| RJ01 | Rejection of invention patent application after publication |