CN207945016U - A kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way - Google Patents
A kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way Download PDFInfo
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- CN207945016U CN207945016U CN201721838697.5U CN201721838697U CN207945016U CN 207945016 U CN207945016 U CN 207945016U CN 201721838697 U CN201721838697 U CN 201721838697U CN 207945016 U CN207945016 U CN 207945016U
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Abstract
The utility model discloses a kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil ways, by increasing first pressure sensor on the low-pressure oil delivery pipe between coarse filter and gear pump, the pressure value for detecting low-pressure oil delivery pipe；The second pressure sensor on low-pressure oil delivery pipe between gear pump and fine filter, the pressure value for detecting low-pressure oil delivery pipe；And electronic control unit and alarm unit, electronic controlled diesel low pressure oil way diagnostic system provided by the utility model borrows the liquid level sensor of fuel tank itself and increased 2 pressure sensors, pass through the detection of voltage oil circuit pressure, judge low pressure oil way problem, the abort situation of low pressure oil way can more explicitly be positioned, user is reminded to replace or maintain in time, avoid unnecessary loss, and the low pressure oil way dismounting and test of service station very complicated are avoided, while reducing because the user that service station ability height different band is come complains.
Description
Technical field
The utility model is related to electric-control motor technical fields, are diagnosed more particularly to a kind of electronic controlled diesel low pressure oil way
System and electronic controlled diesel low pressure oil way.
Background technology
Diesel oil competition currently on the market is fiercer, and quality is also irregular, and even methanol is added containing impurity and water
The case where can be found everywhere, lead to engine low pressure oil way, such as：Filter, fuel gauging unit etc., become and are easiest to break down
Component.If user clear up not in time be likely to result in engine low pressure oil way be blocked, cause engine shut down or spray
Oily device damage, or even the shortening of engine life can be made.
In the prior art for detecting engine low pressure oil way failure, generally require to separate section by professional testing staff
It gradually investigates, also needs to external oil drum when necessary and carry out fuel feeding, be commonly called as " beating transfusion bottle ".The prior art by professional testing staff without
In time, accurately determining low pressure oil way problem, timely prompting user replace or maintain method, cause unnecessary loss.
Utility model content
The purpose of this utility model is that proposing that a kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel are low
User is reminded to replace or maintain in time, avoiding need not to realize timely, accurate determining low pressure oil way problem in pressure oil road
The loss wanted.
Following technical scheme that in order to achieve the above object, the utility model provides：
A kind of electronic controlled diesel low pressure oil way diagnostic system, including：Fuel tank, the oil level being arranged on fuel tank sensing
The cold treasured of device, fuel-oil-water, coarse filter, gear pump, fine filter, high-pressure oil pump, fuel gauging unit, fuel injector, high pressure oil rail, pressure limiting
Valve, low-pressure oil delivery pipe and high-pressure pipeline, wherein the fuel tank, the coarse filter state gear pump, are the fine filter, described
Pressure limiting valve and the fuel injector are connected by the low-pressure oil delivery pipe, the high-pressure oil pump, the high pressure oil rail and described
Fuel injector is connected by the high-pressure pipeline, and the common rail pressure for detecting the high pressure oil rail rail pressure is provided on the high pressure oil rail
Force snesor further includes：
The first pressure sensor on the low-pressure oil delivery pipe being arranged between the coarse filter and the gear pump, institute
State pressure value of the first pressure sensor for detecting the low-pressure oil delivery pipe between the coarse filter and the gear pump；
The second pressure sensor on the low-pressure oil delivery pipe being arranged between the gear pump and the fine filter, institute
State pressure value of the second pressure sensor for detecting the low-pressure oil delivery pipe between the gear pump and the fine filter；
It is pressed respectively with the fuel level sensor, the fuel gauging unit, the first pressure sensor and described second
Force snesor is connected, for according to the fuel level sensor, the fuel gauging unit, the first pressure sensor and described
The signal of second pressure sensor input carries out operation, processing and judgement, and output order controls the electronic control of actuator action
Unit；
It is connected with the electronic control unit, is used for the alarm unit of output alarm signal.
Preferably, further include：The audio alert unit being connected with the alarm unit, for being sent out in the alarm unit
When the alarm signal, audio alert is carried out.
Preferably, the first pressure sensor and/or the second pressure sensor are resistance strain gage sensor, half
Conductor strain transducer, piezoresistive pressure sensor or ceramic-type sensor.
Preferably, the first pressure sensor and/or the second pressure sensor and the electronic control unit are logical
Harness is crossed to be connected.
Preferably, the first pressure sensor and/or the second pressure sensor and the electronic control unit are logical
Communication is crossed to be connected.
Preferably, the electronic control unit is connect with the alarm unit by harness or communication.
Preferably, the communication is WIFI or short-distance wireless communication.
A kind of electronic controlled diesel low pressure oil way, including：Fuel tank, the fuel level sensor being arranged on the fuel tank, fuel-oil-water
Cold treasured, coarse filter, gear pump, fine filter, high-pressure oil pump, fuel gauging unit, fuel injector, high pressure oil rail, pressure limiting valve, low pressure are defeated
Oil pipe and high-pressure pipeline, wherein the fuel tank, the coarse filter, state gear pump, the fine filter, the pressure limiting valve with
And the fuel injector is connected by the low-pressure oil delivery pipe, the high-pressure oil pump, the high pressure oil rail and the fuel injector are logical
It crosses the high-pressure pipeline to be connected, the common rail pressure sensing for detecting the high pressure oil rail rail pressure is provided on the high pressure oil rail
Device further includes：
The first pressure sensor on the low-pressure oil delivery pipe being arranged between the coarse filter and the gear pump, institute
State pressure value of the first pressure sensor for detecting the low-pressure oil delivery pipe between the coarse filter and the gear pump；
The second pressure sensor on the low-pressure oil delivery pipe being arranged between the gear pump and the fine filter, institute
State pressure value of the second pressure sensor for detecting the low-pressure oil delivery pipe between the gear pump and the fine filter.
It can be seen via above technical scheme that compared with prior art, the utility model discloses a kind of electronic controlled diesels
Low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way, by increasing on the low-pressure oil delivery pipe between coarse filter and gear pump
Add first pressure sensor, the pressure value for detecting low-pressure oil delivery pipe；Low-pressure oil delivery pipe between gear pump and fine filter
On second pressure sensor, the pressure value for detecting low-pressure oil delivery pipe；And electronic control unit and alarm unit, this reality
The liquid level sensor of fuel tank itself and increased 2 pressures are borrowed with the electronic controlled diesel low pressure oil way diagnostic system of novel offer
Force snesor judges low pressure oil way problem by the detection of voltage oil circuit pressure, can more explicitly position low pressure oil way
Abort situation, in time remind user replace or maintain, avoid unnecessary loss, and avoid service station very complicated
Low pressure oil way dismounting and test, while reduce because service station ability height different band come user complain.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of electronic controlled diesel low pressure oil way diagnostic system structural schematic diagram that the utility model embodiment provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Electronic control unit：It is a kind of signal progress operation, processing, judgement inputted according to each sensor, then exports
The controller of instruction control actuator action.
By the utility model by the detection to low pressure oil way pressure, low pressure oil way problem is judged, remind use in time
Family is replaced or is maintained, and unnecessary loss is avoided.
Shown in Figure 1, the utility model provides a kind of electronic controlled diesel low pressure oil way diagnostic system, including：Fuel tank
1, the cold treasured 3 of fuel level sensor 2, fuel-oil-water, coarse filter 4, gear pump 5, fine filter 6, high-pressure oil pump 7, oil on fuel tank are set
Metering units 8, fuel injector 9, high pressure oil rail 10, pressure limiting valve 11, low-pressure oil delivery pipe 12 and high-pressure pipeline 13 are measured, wherein：
Fuel tank 1, coarse filter 4, gear pump 5, fine filter 6, pressure limiting valve 11 and fuel injector 9 are connected by low-pressure oil delivery pipe,
High-pressure oil pump 7, high pressure oil rail 10, fuel injector 9 are connected by high-pressure pipeline 13, and detection high pressure oil is provided on high pressure oil rail 10
The common rail pressure sensor 14 of 10 rail pressure of rail, the electronic controlled diesel low pressure oil way diagnostic system further include：
First pressure sensor M1 on low-pressure oil delivery pipe 12 between coarse filter 4 and gear 5 pump, first pressure are set
Sensor M1 is used to detect the pressure value of the low-pressure oil delivery pipe 12 between coarse filter 4 and gear pump 5；It is arranged in gear pump 5 and essence
Second pressure sensor M2 on low-pressure oil delivery pipe 12 between filter 6, second pressure sensor M2 are for detecting 5 He of gear pump
The pressure value of low-pressure oil delivery pipe 12 between fine filter 6.
Respectively with fuel level sensor 2, fuel gauging unit 8, first pressure sensor M1 and second pressure sensor M2 phases
Even, for according to fuel level sensor 2, fuel gauging unit 8, first pressure sensor M1 and the M2 inputs of second pressure sensor
Signal carries out operation, processing and judgement, and output order controls the electronic control unit M3 of actuator action；With electronic control unit
M3 is connected, and is used for the alarm unit M4 of output alarm signal.
It should be noted that in the utility model embodiment, path of the low pressure oil way since fuel tank approximately as：Oil
Case -->Water is cold precious (non-to work always) -->Coarse filter -->Gear pump -->Fine filter -->High-pressure oil pump, fuel gauging unit -->
High-pressure oil pump, plunger pump.
Preferably, as shown in Figure 1, the electronic controlled diesel low pressure oil way diagnostic system further includes：It is connected with alarm unit M4
Audio alert unit M5 carry out audio alert for when alarm unit M4 sends out alarm signal.
Preferably, above-mentioned first pressure sensor and/or second pressure sensor can be resistance strain gage sensor, half
Conductor strain transducer, piezoresistive pressure sensor or ceramic-type sensor.
It should be noted that in the utility model embodiment, first pressure sensor and/or second pressure sensor may be used also
Think such as resistance strain gage pressure sensor, semiconductor gauge pressure sensor, piezoresistive pressure sensor, inductance type pressure
Sensor, capacitance pressure transducer, resonance type pressure sensor and capacitance acceleration transducer etc..But it is most widely used
Be piezoresistive pressure sensor, it has extremely low price and higher precision and preferable linear characteristic.
Preferably, above-mentioned first pressure sensor M1 and/or second pressure sensor M2 and electronic control unit M3 passes through
Harness is connected；Above-mentioned first pressure sensor M1 and/or second pressure sensor M2 and electronic control unit M3 passes through channel radio
Letter mode is connected.
It should be noted that in the utility model embodiment, above-mentioned electronic control unit M3 and alarm unit M4 can be with
It is connected by harness or communication.
Preferably, above-mentioned communication is WIFI or short-distance wireless communication.
It should be noted that in the utility model embodiment, it can be according to user for the connection type between each device
Demand is flexibly handled, and the mode described in the utility model embodiment is not limited to its connection type.
Specifically, the operation principle of the electronic controlled diesel low pressure oil way diagnostic system：
Increase a first pressure sensor M1 between coarse filter and gear pump, increases between gear pump and fine filter
One second pressure sensor M2, while borrowing the detection level height of the fuel level sensor 2 on existing fuel tank L.Due to gear pump 5
It is an Oil sucking device, so first pressure sensor M1 is negative sense pressure, second pressure sensor M2 is positive pressure.According to altogether
Rail System Working Principle, the actual pressure that frequently can lead to when low pressure oil way is problematic in common rail pipe are more different than the rail pressure of setting
Degree it is relatively low.Therefore, low pressure oil way process fault detection is as follows：
Engine start is simultaneously run, and detects that common rail pipe actual pressure is more relatively low than setting pressure or has the long period relatively low；
Oil tank liquid level height is detected whether less than limit value (being easy to cause air sucking oil circuit), if liquid level is low by fuel level sensor
Failure is then quoted in limit value to alarm；If oil tank liquid level height is higher than limit value, the pressure of first pressure sensor M1 is detected
Whether absolute value (negative pressures) is higher than upper limit valueIf higher than coarse filter blocking is represented if upper limit value, (impurity is easy stifled too much
Plug), it is carried out at the same time fault alarm；If the pressure value of first pressure sensor M1 (indicates gear pump oil suction resistance less than lower limiting value
It is less than normal), then it represents that, coarse filter and oil circuit before have gas leak phenomenon, are carried out at the same time fault alarm and remind repair.If the first pressure
Between lower limiting value and upper limit value, then whether the pressure value for detecting second pressure sensor M2 is less than the pressure value of force snesor M1
Range of normal value (5bar~8bar)If less than gear pump or overflow valve damage is particularly likely that if normal value, failure report is carried out
It is alert to remind repair；If the pressure value of second pressure sensor M2 is higher than range of normal value (5bar~8bar), fine filter is represented
Or high-pressure oil pump oil return blocks, and carries out fault alarm and reminds repair or replace；If the pressure value of second pressure sensor M2 is just
In normal range, then at the engine operating condition metastable moment, keep setting rail pressure constant, short time adjusting oil mass metering units
Electric current (increase/reduction high-pressure oil pump fuel delivery).If practical rail pressure does not fluctuate or the apparent lag of fluctuation, fuel contents gauge is represented
Amount unit clamping stagnation (gets rusty or after impurity leads to clamping stagnation, the movement displaying of fuel gauging unit is slow or even stuck), carry out therefore
Hinder warning reminding repair；If practical rail pressure has fluctuation, but the amplitude fluctuated is less than defined threshold, then represents plunger pump or high pressure
There is leakage in oil circuit, carries out fault alarm and remind repair.
The utility model embodiment provides a kind of electronic controlled diesel low pressure oil way diagnostic system, by coarse filter and tooth
Increase first pressure sensor on low-pressure oil delivery pipe between wheel pump, the pressure value for detecting low-pressure oil delivery pipe；In gear pump
Second pressure sensor on low-pressure oil delivery pipe between fine filter, the pressure value for detecting low-pressure oil delivery pipe；And electricity
Sub-control unit and alarm unit, electronic controlled diesel low pressure oil way diagnostic system provided by the utility model borrow fuel tank itself
Liquid level sensor and increased 2 pressure sensors judge low pressure oil way problem by the detection of voltage oil circuit pressure,
The abort situation of low pressure oil way can be more explicitly positioned, reminds user to replace or maintain in time, avoids unnecessary
Loss, and the low pressure oil way dismounting and test of service station very complicated are avoided, while reducing because of service station ability height
The user that different band is come complains.
Shown in Figure 1, the invention also discloses a kind of electronic controlled diesel low pressure oil ways, including：Fuel tank 1, setting
The cold treasured 3 of fuel level sensor 2, fuel-oil-water on fuel tank, coarse filter 4, gear pump 5, fine filter 6, high-pressure oil pump 7, fuel gauging
Unit 8, fuel injector 9, high pressure oil rail 10, pressure limiting valve 11, low-pressure oil delivery pipe 12 and high-pressure pipeline 13, wherein fuel tank 1, thick
Filter 4, gear pump 5, fine filter 6, pressure limiting valve 11 and fuel injector 9 are connected by low-pressure oil delivery pipe, high-pressure oil pump 7, high pressure oil
Rail 10, fuel injector 9 are connected by high-pressure pipeline 13, and the common rail pressure of detection 10 rail pressure of high pressure oil rail is provided on high pressure oil rail 10
Force snesor 14, the electronic controlled diesel low pressure oil way diagnostic system further include：
First pressure sensor M1 on low-pressure oil delivery pipe 12 between coarse filter 4 and gear 5 pump, first pressure are set
Sensor M1 is used to detect the pressure value of the low-pressure oil delivery pipe 12 between coarse filter 4 and gear pump 5；
The second pressure sensor M2 on low-pressure oil delivery pipe 12 being arranged between gear pump 5 and fine filter 6, second pressure
Sensor M2 is used to detect the pressure value of the low-pressure oil delivery pipe 12 between gear pump 5 and fine filter 6.
To sum up, the utility model embodiment provides a kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel
Low pressure oil way is low for detecting by increasing first pressure sensor on the low-pressure oil delivery pipe between coarse filter and gear pump
Press the pressure value of petroleum pipeline；The second pressure sensor on low-pressure oil delivery pipe between gear pump and fine filter, for detecting
The pressure value of low-pressure oil delivery pipe；And electronic control unit and alarm unit, electronic controlled diesel low pressure provided by the utility model
Oil circuit diagnostic system borrows the liquid level sensor of fuel tank itself and increased 2 pressure sensors, passes through voltage oil circuit pressure
Detection, judge low pressure oil way problem, can more explicitly position the abort situation of low pressure oil way, in time remind user into
Row is replaced or maintenance, avoids unnecessary loss, and avoids the low pressure oil way dismounting and test of service station very complicated, simultaneously
Reduce because the user that service station ability height different band is come complains.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion so that article or equipment including a series of elements include not only those elements, but also is wrapped
Other elements that are not explicitly listed are included, or further include for this article or the intrinsic element of equipment.Do not having more
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that including above-mentioned element article or
There is also other identical elements in person's equipment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.The above is only the preferred embodiment of the present invention, not limiting
The utility model, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (8)
1. a kind of electronic controlled diesel low pressure oil way diagnostic system, including：Fuel tank, the fuel level sensor being arranged on the fuel tank,
Fuel-oil-water tremble with fear treasured, coarse filter, gear pump, fine filter, high-pressure oil pump, fuel gauging unit, fuel injector, high pressure oil rail, pressure limiting valve,
Low-pressure oil delivery pipe and high-pressure pipeline, wherein the fuel tank, the coarse filter, the gear pump, the fine filter, described
Pressure limiting valve and the fuel injector are connected by the low-pressure oil delivery pipe, the high-pressure oil pump, the high pressure oil rail and described
Fuel injector is connected by the high-pressure pipeline, and the common rail pressure for detecting the high pressure oil rail rail pressure is provided on the high pressure oil rail
Force snesor, which is characterized in that further include：
The first pressure sensor on the low-pressure oil delivery pipe being arranged between the coarse filter and the gear pump, described
One pressure sensor is used to detect the pressure value of the low-pressure oil delivery pipe between the coarse filter and the gear pump；
The second pressure sensor on the low-pressure oil delivery pipe being arranged between the gear pump and the fine filter, described
Two pressure sensors are used to detect the pressure value of the low-pressure oil delivery pipe between the gear pump and the fine filter；
It is passed respectively with the fuel level sensor, the fuel gauging unit, the first pressure sensor and the second pressure
Sensor is connected, for according to the fuel level sensor, the fuel gauging unit, the first pressure sensor and described second
The signal of pressure sensor input carries out operation, processing and judgement, and output order controls the electronic control unit of actuator action；
It is connected with the electronic control unit, is used for the alarm unit of output alarm signal.
2. electronic controlled diesel low pressure oil way diagnostic system according to claim 1, which is characterized in that further include：With it is described
The connected audio alert unit of alarm unit, for when the alarm unit sends out the alarm signal, carrying out audio alert.
3. electronic controlled diesel low pressure oil way diagnostic system according to claim 1, which is characterized in that the first pressure passes
Sensor and/or the second pressure sensor are resistance strain gage sensor, semiconductor strain sensor, pressure drag type pressure sensing
Device or ceramic-type sensor.
4. electronic controlled diesel low pressure oil way diagnostic system according to claim 1, which is characterized in that the first pressure passes
Sensor and/or the second pressure sensor are connected with the electronic control unit by harness.
5. electronic controlled diesel low pressure oil way diagnostic system according to claim 1, which is characterized in that the first pressure passes
Mode is connected by radio communication with the electronic control unit for sensor and/or the second pressure sensor.
6. electronic controlled diesel low pressure oil way diagnostic system according to claim 1, which is characterized in that the electronic control is single
It is first to be connect by harness or communication with the alarm unit.
7. electronic controlled diesel low pressure oil way diagnostic system according to claim 5 or 6, which is characterized in that the channel radio
Letter mode is WIFI or short-distance wireless communication.
8. a kind of electronic controlled diesel low pressure oil way, including：Fuel tank, the fuel level sensor being arranged on the fuel tank, fuel-oil-water are cold
Treasured, coarse filter, gear pump, fine filter, high-pressure oil pump, fuel gauging unit, fuel injector, high pressure oil rail, pressure limiting valve, low pressure oil transportation
Pipe and high-pressure pipeline, wherein the fuel tank, the coarse filter, the gear pump, the fine filter, the pressure limiting valve with
And the fuel injector is connected by the low-pressure oil delivery pipe, the high-pressure oil pump, the high pressure oil rail and the fuel injector are logical
It crosses the high-pressure pipeline to be connected, the common rail pressure sensing for detecting the high pressure oil rail rail pressure is provided on the high pressure oil rail
Device, which is characterized in that further include：
The first pressure sensor on the low-pressure oil delivery pipe being arranged between the coarse filter and the gear pump, described
One pressure sensor is used to detect the pressure value of the low-pressure oil delivery pipe between the coarse filter and the gear pump；
The second pressure sensor on the low-pressure oil delivery pipe being arranged between the gear pump and the fine filter, described
Two pressure sensors are used to detect the pressure value of the low-pressure oil delivery pipe between the gear pump and the fine filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721838697.5U CN207945016U (en) | 2017-12-25 | 2017-12-25 | A kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721838697.5U CN207945016U (en) | 2017-12-25 | 2017-12-25 | A kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945016U true CN207945016U (en) | 2018-10-09 |
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ID=63704373
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721838697.5U Active CN207945016U (en) | 2017-12-25 | 2017-12-25 | A kind of electronic controlled diesel low pressure oil way diagnostic system and electronic controlled diesel low pressure oil way |
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| CN (1) | CN207945016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284981A (en) * | 2019-06-29 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of method and system detecting fuel gauging unit clamping stagnation |
| CN112412673A (en) * | 2020-10-27 | 2021-02-26 | 潍柴动力股份有限公司 | Fuel system, engine and method for automatically releasing limp mode of engine |
-
2017
- 2017-12-25 CN CN201721838697.5U patent/CN207945016U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284981A (en) * | 2019-06-29 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of method and system detecting fuel gauging unit clamping stagnation |
| CN112412673A (en) * | 2020-10-27 | 2021-02-26 | 潍柴动力股份有限公司 | Fuel system, engine and method for automatically releasing limp mode of engine |
| CN112412673B (en) * | 2020-10-27 | 2022-04-26 | 潍柴动力股份有限公司 | Fuel system, engine and method for automatically releasing limp mode of engine |
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