CN209179923U - A kind of control system of automotive air induction duct formula fuel injector on-line checking platform - Google Patents
A kind of control system of automotive air induction duct formula fuel injector on-line checking platform Download PDFInfo
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- CN209179923U CN209179923U CN201821106393.4U CN201821106393U CN209179923U CN 209179923 U CN209179923 U CN 209179923U CN 201821106393 U CN201821106393 U CN 201821106393U CN 209179923 U CN209179923 U CN 209179923U
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- fuel injector
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Abstract
The utility model relates to a kind of control systems of automotive air induction duct formula fuel injector on-line checking platform, including PLC, ejection medium level monitoring and liquid supply device, ejection medium pressure control device, oil route controller, ejection medium level monitoring and liquid supply device, ejection medium pressure control device, oil route controller are controlled by PLC.While ejection medium level monitoring and liquid supply device are by ejection medium pressure control device and oil route controller, the liquid level of ejection medium level monitoring and liquid supply device is also adjusted.Control device provided by the utility model meets the experimental condition of domestic and international automotive air induction duct formula fuel injector detection, realize scientific, the accurate detection of automotive air induction duct formula fuel injector performance, pass through optimization design, using advanced sensor technology, the test to air inlet flue type fuel injector multifrequency nature is realized.
Description
Technical field
The utility model belongs to gauge check field, is related to automatic technology, especially a kind of automotive air induction duct formula oil spout
The control system of device on-line checking platform.
Background technique
Automobile fuel injector is the important component of automobile engine, and whether working characteristics reaches job requirement, directly
Affect the working characteristics of automobile engine.Therefore, in the production link of automobile fuel injector, it is necessary to directly be carried out to it precisely
Test.
Currently, " the SAE J1832-2001 Low Pressure Gasoline that AIAE American institute of automobile engineers is promulgated
Fuel Injector"；Chinese mechanical industry federation propose " GB/T 25363-2010 electromagnetic valve type oil sprayer for gasoline engine is total
At test method "；The standards such as automobile industry standard " QC/T 967-2014 petrol engine air admission road injecting type fuel injector ", to automobile
The test environment of automatically controlled air inlet flue type fuel injector clearly requires.Whether test environment reaches test request, to fuel injector
The accuracy of detection has large effect.Therefore, in order to construct the standard environment for testing fuel injector, the accurate of test is improved
Degree, automotive air induction duct formula fuel injector on-line checking platform need a kind of reliable, stable, safety control system.
Utility model content
The purpose of the utility model is to overcome in place of the deficiencies in the prior art, it is simple, easily operated to provide a kind of structure
Automotive air induction duct formula fuel injector on-line checking platform control system.
The utility model solves its technical problem and adopts the following technical solutions to achieve:
A kind of control system of automotive air induction duct formula fuel injector on-line checking platform, including PLC, ejection medium level monitoring
And liquid supply device, ejection medium pressure control device, oil route controller, ejection medium level monitoring and liquid supply device, injection
Pressure medium control device, oil route controller are controlled by PLC.Ejection medium level monitoring and liquid supply device pass through spray
It penetrates pressure medium control device and oil route controller adjusts the liquid level of ejection medium level monitoring and liquid supply device, the injection
Medium level monitoring and liquid supply device include relay, oil pump, fuel tank, liquid level sensor and booster jar, wherein fuel tank oil outlet
Be connected with booster jar oiler by filter, in liquid level sensor device and booster jar, oil pump device in fuel tank internal and
It is connected with relay, PLC is connect with relay, and the ejection medium pressure control device includes electromagnetic proportional valve, air pump, increasing
Tank, oil inlet common rail and pressure sensor are pressed, wherein PLC is connected with electromagnetic proportional valve, pressure sensor, electromagnetic proportional valve input
Mouth is connected with air pump, and delivery outlet is connected with booster jar, and the oil outlet of booster jar is connected with oil inlet common rail, pressure sensor
For monitoring ejection medium pressure in oil inlet common rail, ejection medium is constituted with PLC, electromagnetic proportional valve, booster jar, oil inlet common rail
The closed-loop control of pressure.
Moreover, device air gauge and air oil water separator between the electromagnetic proportional valve and air pump, for monitoring gas
Pressure is separated with steam.
Moreover, the oil route controller includes six tunnel oil inlet solenoid valves, six road oil return solenoid valves, six tunnel oil inlet solenoid valves
It is connected with flowmeter and six fuel injectors；Six road oil return solenoid valves are connected with oil return common rail, PLC and six tunnel oil inlet electromagnetism
Valve, six road oil return solenoid valves are separately connected.
Moreover, each fuel injector is connected with a fuel injector driver respectively, fuel injector driving device, oil spout are constituted
Device driver can drive the operating condition of No. six fuel injectors simulation fuel injector idling, low speed, middling speed and high speed simultaneously, and acquire all kinds of
Fuel injector status signal monitors fuel injector circuit break and short circuit failure.
Moreover, further including fuel injector drying device, including air solenoid valve, six road check valve check valves, six road check valves
Air inlet be connected on the air pipe line between air oil water separator and electromagnetic proportional valve by air solenoid valve, six Lu Dan
It is located on the fuel feed pump below six tunnel oil inlet solenoid valves to the gas outlet of valve, for the fuel injector after dry test.
Moreover, further including fuel injector flow acquisition device, including pulse counter and flowmeter, for testing fuel injector
Discharge characteristic, between flowermeter Yu Liulu oil inlet solenoid valve and oil inlet common rail, pulse counter is connected with flowmeter, uses
In the number of pulses of metered flow meter.
Moreover, the ejection medium pressure control device, fuel injector driving device and fuel injector flow acquisition device, altogether
Hinder diagnostic device with event fuel injector is constituted, blocking or leakage failure occurs for testing fuel injector.
Moreover, including host computer, host computer is connected with fuel injector driver, PLC, pulse counter simultaneously, responsible pair
Control system links carry out real-time control and data sampling and processing and display.
The advantages and positive effects of the utility model are as follows:
1, control device provided by the utility model meets the test bar of domestic and international automotive air induction duct formula fuel injector detection
Part, scientific, the accurate detection for realizing automotive air induction duct formula fuel injector performance utilize advanced sensor by optimization design
Technology realizes the test to air inlet flue type fuel injector multifrequency nature.Ejection medium pressure, and the parameters of test fuel injector
Voluntarily it can acquire and handle, realize higher the degree of automation, reduce the complexity of test fuel injector process.
2, control device provided by the utility model carries out ejection medium pressure control by the way of controlling gas volume,
Reduce pressure oscillation and enhances the stability of fuel injector on-line checking platform using closed-loop control；Using liquid supply device, guarantee
Fuel injector on-line checking platform can improve its working efficiency in duration；Using fuel injector drying device, spray is realized
The integrality of the process of oily device on-line checking, enhances the degree of automation of testing process.
Detailed description of the invention
Fig. 1 is the connection relationship diagram of the electric control part and executing agency in the utility model.
Fig. 1 is the structural schematic diagram of the utility model, and 1 is fuel tank, and 2 be low pressure fuel pump, and 3 be filter, and 4 be relay,
5 be air gauge, and 6 be air pump, and 7 be air oil water separator, and 8 be electromagnetic proportional valve, and 9 be booster jar, and 10 be liquid level sensor, 11
It is oil inlet solenoid valve for oil inlet common rail, 12,13 be flowmeter, and 14 be check valve, and 15 be fuel injector, and 16 be graduated cylinder, and 17 be oil return
Common rail, 18 be pressure sensor, and 19 be oil return solenoid valve, and 20 be air solenoid valve, and 21 be host computer, and 22 drive for fuel injector
Device, 23 be pulse counter, and 24 be PLC.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is only retouched
The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of control system of automotive air induction duct formula fuel injector on-line checking platform, including 1 fuel tank, 2 low pressure fuel pumps, 3 filters
Clear device, 4 relays, 5 air gauges, 6 air pumps, 7 air oil water separators, 8 electromagnetic proportional valves, 9 booster jars, 10 liquid level sensors,
11 oil inlet common rails, 12 6 tunnel oil inlet solenoid valves, 13 No. six flowmeters, 14 6 road check valves, 15 fuel injectors, 16 graduated cylinders, 17 oil returns
Common rail, 18 pressure sensors, 19 6 road oil return solenoid valves, 20 air solenoid valves, 21 host computers, 22 fuel injector drivers, 23 arteries and veins
Rush counter, 24PLC.
Above-mentioned 24PLC and 4 relays, 6 oil pumps, 1 fuel tank, 10 liquid level sensors and 9 booster jars form ejection medium liquid
Position monitoring and liquid supply device.Wherein, 1 fuel tank oil outlet is connected with 9 booster jar oilers by filter, for filtering injection
Medium.In 10 liquid level sensor devices and 9 booster jars, for monitoring the fluid level condition of ejection medium.2 low pressure fuel pumps are installed on 1
Fuel tank internal is connected with 4 relays, controls for ejection medium fluid infusion.
Above-mentioned 24PLC and 8 electromagnetic proportional valves, 6 air pumps, 9 booster jars, 11 oil inlet common rails and 18 pressure sensors constitute spray
Penetrate pressure medium control device.Wherein 24PLC is connected with 8 electromagnetic proportional valves, 18 pressure sensors.The input of 8 electromagnetic proportional valves
Mouth is connected with 6 air pumps, and delivery outlet is connected with 9 booster jars, for controlling the volume of gas in 9 booster jars.8 electromagnetic proportional valves
5 air gauge of device and 7 air oil water separators, separate for monitoring gas pressure with steam between 6 air pumps.9 booster jars
Oil outlet is connected with 11 oil inlet common rails, and 18 pressure sensors are used to monitor ejection medium pressure in 11 oil inlet common rails, with
24PLC, 8 electromagnetic proportional valves, 9 booster jars, 11 oil inlet common rails constitute the closed-loop control of ejection medium pressure.
Above-mentioned 24PLC and 12 6 tunnel oil inlet solenoid valves, 19 6 road oil return solenoid valves constitute oil route controller, for controlling
Make the working condition on six road binders roads.12 6 tunnel oil inlet solenoid valves are connected with 13 No. six flowmeters and 15 fuel injectors；19 6 tunnels are returned
Solenoid is connected with 17 oil return common rails.
Above-mentioned 24PLC and 20 air solenoid valves, 14 6 road check valves constitute fuel injector drying device, for dry test
15 fuel injectors afterwards.The air inlet of 14 6 road check valves is connected to 7 air oil water separators and 8 electromagnetism by 20 air solenoid valves
On air pipe line between proportioning valve, the gas outlet of 14 6 road check valves is located at the fuel feeding below 12 6 tunnel oil inlet solenoid valves
Guan Shang, for 15 fuel injectors after dry test.
Above-mentioned 22 fuel injector driver is connected with 15 fuel injectors, constitutes 15 fuel injector driving devices, is responsible for simulation oil spout
A variety of different operating conditions such as device idling, low speed, middling speed and high speed, and all kinds of fuel injector status signals of acquisition, monitor fuel injector
Circuit break and short circuit failure, and No. six fuel injectors can be driven simultaneously.
Above-mentioned 23 pulse counter and 13 No. six flowmeters constitute fuel injector flow acquisition device, for testing fuel injector
Discharge characteristic (dynamic flow and quiescent flow).Six road flowermeters in 12 6 tunnel oil inlet solenoid valves and 11 oil inlet common rails it
Between, 23 pulse counters are connected with 13 No. six flowmeters, the number of pulses based on metered flow.
Above-mentioned ejection medium pressure control device, fuel injector driving device and fuel injector flow acquisition device, collectively form
Therefore fuel injector hinders diagnostic device, is responsible for whether test fuel injector occurs blocking or leakage failure.
Above-mentioned 21 host computer is connected with 22 fuel injector drivers, 24PLC, 23 pulse counters simultaneously, is responsible for control
System links carry out real-time control and data sampling and processing and display.
Steps are as follows for the control method of this control system:
(1) air pump is opened, fuel injector is installed, attach it in installation device of fuel injector and fuel injector drive is linked in sequence
Moving-wire.
(2) it turns on the power switch, starts control system, click in host computer screen " identification fuel injector " button, lead at this time
It crosses fuel injector driving device and acquires each fuel injector data, fuel injector type (voltage-type or electric current are identified by feedback data
Type), while feeding back the corresponding data of each fuel injector of host computer.
(3) " pressure setting " frame in host computer screen is clicked, pressure value needed for setting experiment is clicked " starting to pressurize " and pressed
Button, the pressure for controlling ejection medium is reached and is stablized in setup pressure value by ejection medium pressure control device at this time.Wherein PLC
Control ejection medium pressure control device, the algorithmic formula of use are as follows:
In formula: u (t) is output pressure value；KPFor proportionality coefficient；TiFor time of integration constant；TdFor derivative time constant；e
It (t) is the deviation of setup pressure value and actual pressure value.
If the sampling time is T, (1) formula discretization can be obtained at the k moment:
In formula:For integral coefficient；For differential coefficient.
It adjusts u (k), when e (t) is zero, so that control system adjusts and stablizes ejection medium pressure.It works in fuel injector
Control system will execute always this algorithm in the process, make its ejection medium pressure remained steady state.
(4) host computer screen " fault diagnosis " button is clicked, injector failures diagnostic device is started, fuel injector drives at this time
Device acquires ejection medium pressure and fuel injector injection respectively to the control signal per the input identical parameters of fuel injector all the way
Flow information judges whether fuel injector occurs to block or leak event according to ejection medium pressure and fuel injector injection flow information
Barrier.And it records.
(5) host computer screen " parameter setting " button is clicked, input fuel injector flow characteristic test needs difference to be tested
Different operating conditions are finally ranked up by operating condition design parameter.
(6) " starting to test " button is clicked, starts pressure control device, fuel injector driving device will be according to (4) at this time
The operating condition Sequential output of step setting controls signal, carries out discharge characteristic test, after each working condition measurement, fuel injector flow
Acquisition device calculates fuel injector injection flow automatically, bent according to test result output flow characteristic after all working condition measurements
Line chart, and record.In discharge characteristic test process, real-time monitoring is acquired fuel injector status signal by fuel injector driving device.
(7) after testing, " drying " button is clicked, process is dried to fuel injector in fuel injector drying device at this time.
(8) " test terminates " button is clicked, each device work is stopped, every test data of record is formed into experiment report
It accuses.
(9) " printed report " button is clicked, laboratory report is exported.
Although disclosing the embodiments of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be with
Understand: departing from the utility model and spirit and scope of the appended claims, various substitutions, changes and modifications are all can
Can, therefore, the scope of the utility model is not limited to the embodiment and attached drawing disclosure of that.
Claims (8)
1. a kind of control system of automotive air induction duct formula fuel injector on-line checking platform, including PLC, ejection medium level monitoring and
Liquid supply device, ejection medium pressure control device, oil route controller, ejection medium level monitoring and liquid supply device, injection are situated between
Matter pressure control device, oil route controller are controlled by PLC, and ejection medium level monitoring and liquid supply device pass through injection
Pressure medium control device and oil route controller adjust the liquid level of ejection medium level monitoring and liquid supply device,
The ejection medium level monitoring and liquid supply device include relay, oil pump, fuel tank, liquid level sensor and booster jar,
In, fuel tank oil outlet is connected with booster jar oiler by filter, in liquid level sensor device and booster jar, oil pump device
It is connected in fuel tank internal and with relay, PLC is connect with relay；
The ejection medium pressure control device includes electromagnetic proportional valve, air pump, booster jar, oil inlet common rail and pressure sensor,
Wherein PLC is connected with electromagnetic proportional valve, pressure sensor, and electromagnetic proportional valve input port is connected with air pump, delivery outlet and increasing
Pressure tank is connected, and the oil outlet of booster jar is connected with oil inlet common rail, and pressure sensor is situated between for monitoring injection in oil inlet common rail
Matter pressure constitutes the closed-loop control of ejection medium pressure with PLC, electromagnetic proportional valve, booster jar, oil inlet common rail.
2. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 1, it is characterised in that:
The oil route controller includes six tunnel oil inlet solenoid valves, six road oil return solenoid valves, six tunnel oil inlet solenoid valves and flowmeter and six
A fuel injector is connected；Six road oil return solenoid valves are connected with oil return common rail, PLC and six tunnel oil inlet solenoid valves, six tunnel oil return electricity
Magnet valve is separately connected.
3. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 1, it is characterised in that:
Device air gauge and air oil water separator between the electromagnetic proportional valve and air pump, for monitoring gas pressure and steam point
From.
4. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 2, it is characterised in that:
Each fuel injector is connected with a fuel injector driver respectively, constitutes fuel injector driving device, fuel injector driver can be same
When drive the operating condition of No. six fuel injectors simulation fuel injector idling, low speed, middling speed and high speed, and acquisition all kinds of fuel injector states letter
Number, monitor fuel injector circuit break and short circuit failure.
5. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 3, it is characterised in that:
It further include fuel injector drying device, including air solenoid valve, six road check valve check valves, the air inlet of six road check valves pass through sky
Pneumoelectric magnet valve is connected on the air pipe line between air oil water separator and electromagnetic proportional valve, the gas outlet point of six road check valves
It Wei Yu not be on the fuel feed pump below six tunnel oil inlet solenoid valves, for the fuel injector after dry test.
6. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 4, it is characterised in that:
It further include fuel injector flow acquisition device, including pulse counter and flowmeter, for testing the discharge characteristic of fuel injector, flow
Between counter device Yu Liulu oil inlet solenoid valve and oil inlet common rail, pulse counter is connected with flowmeter, based on metered flow
Number of pulses.
7. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 6, it is characterised in that:
Ejection medium pressure control device, fuel injector driving device and the fuel injector flow acquisition device collectively forms event oil spout
Device hinders diagnostic device, and blocking or leakage failure occurs for testing fuel injector.
8. the control system of automotive air induction duct formula fuel injector on-line checking platform according to claim 1, it is characterised in that:
Including host computer, host computer is connected with fuel injector driver, PLC, pulse counter simultaneously, is responsible for each ring of control system
Section carries out real-time control and data sampling and processing and display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106393.4U CN209179923U (en) | 2018-07-13 | 2018-07-13 | A kind of control system of automotive air induction duct formula fuel injector on-line checking platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106393.4U CN209179923U (en) | 2018-07-13 | 2018-07-13 | A kind of control system of automotive air induction duct formula fuel injector on-line checking platform |
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| CN209179923U true CN209179923U (en) | 2019-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339151A (en) * | 2021-05-30 | 2021-09-03 | 重庆长安汽车股份有限公司 | Engine mixed injection control system and method for engine bench test |
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2018
- 2018-07-13 CN CN201821106393.4U patent/CN209179923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339151A (en) * | 2021-05-30 | 2021-09-03 | 重庆长安汽车股份有限公司 | Engine mixed injection control system and method for engine bench test |
| CN113339151B (en) * | 2021-05-30 | 2022-07-08 | 重庆长安汽车股份有限公司 | Engine mixed injection control system and method for engine bench test |
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