CN106704069B - Vehicle-mounted oil consumption detection equipment calibration device and calibration method - Google Patents
Vehicle-mounted oil consumption detection equipment calibration device and calibration method Download PDFInfo
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- CN106704069B CN106704069B CN201710000729.2A CN201710000729A CN106704069B CN 106704069 B CN106704069 B CN 106704069B CN 201710000729 A CN201710000729 A CN 201710000729A CN 106704069 B CN106704069 B CN 106704069B
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- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
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- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/0084—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume for measuring volume
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- 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
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Testing Of Engines (AREA)
Abstract
The invention relates to a vehicle-mounted fuel consumption detection equipment calibration device and a calibration method, the device comprises a data acquisition instrument which is in signal connection with an engine Electronic Control Unit (ECU) and is suitable for acquiring fuel injection control signals of an engine, the data acquisition instrument is in signal connection with a data processing device, the data processing device is in signal connection with an electronic driving module, the electronic driving module is electrically connected with a pump at one side and each specified fuel injector, the inlet of the pump is suitable for extracting specific liquid, the outlet of the pump is in sealed connection with the inlet of each fuel injector, a metering device for calculating the amount of liquid sprayed by each fuel injector is arranged at one side of each fuel injector, the electronic driving module is suitable for controlling the outlet pressure of the pump, and the electronic driving module is suitable for controlling the injection action of each fuel injector; the calibration method utilizes a data acquisition instrument to acquire an oil injection control signal; the data processing device drives the pump and the specified oil sprayer to work by using the electronic driving module, so that the vehicle-mounted oil consumption detection equipment is detected and calibrated without detaching the oil sprayer.
Description
Technical Field
The invention relates to a calibration device and a calibration method for vehicle-mounted oil consumption detection equipment, which are used for calibrating oil consumption metering data of the vehicle-mounted oil consumption detection equipment.
Background
The on-vehicle oil consumption check out test set among the prior art is generally to utilize graduated flask, graduated flask or weighing apparatus, detect the fuel injection quantity of engine oil atomizer and compare with the oil mass check out test set survey data on the engine in a certain period of time to carry out the calibration to oil mass check out test set, this process must lift off the sprayer from the engine and detect, testing personnel detect at the scene at engine place simultaneously, test condition has certain restriction, especially can not realize that testing personnel detect, the calibration to on-vehicle check out test set long-rangely. The oil quantity detection device on the engine is generally an engine Electronic Control Unit (ECU), because the oil pressure in an oil supply pipe connected with each oil injector is kept constant under the action of a pressure limiting valve, the oil injection quantity of each oil injector only depends on the opening time of an electromagnetic valve in the oil injector, the opening time is electrically controlled by the engine electronic control unit, the engine electronic control unit calculates the oil injection quantity according to the opening time of each oil injector controlled by the engine electronic control unit, and the calculation process needs calibration.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a calibration device for vehicle-mounted oil consumption detection equipment, which can be used for detecting and calibrating the vehicle-mounted oil consumption detection equipment under the condition of not disassembling an oil sprayer.
In order to solve the above technical problem, the present invention provides a calibration device for a vehicle-mounted oil consumption detection apparatus, including: the engine oil injection control system comprises a data acquisition instrument, a data processing device, an electronic driving module, a pump and each oil injector, wherein the data acquisition instrument is in signal connection with an engine electronic control unit and is suitable for acquiring an engine oil injection control signal, the data acquisition instrument is in signal connection with the data processing device, the data processing device is in signal connection with the electronic driving module, the electronic driving module is electrically connected with the pump on one side and each specified oil injector, the inlet of the pump is suitable for extracting specific liquid, the outlet of the pump is in sealed connection with the inlet of each oil injector, a metering device for calculating the liquid amount sprayed by each oil injector is arranged on one side of each oil injector, the electronic driving module is suitable for controlling the outlet pressure of the pump, and the electronic driving module is suitable for controlling the injection action of each oil injector.
The number of the data processing devices is 2, one data processing device is in signal connection with the data acquisition instrument, the other data processing device is in signal connection with the electronic driving module, and the 2 data processing devices are connected through a wired or wireless network.
The data processing device is a computer.
The data acquisition instrument is in communication connection with the engine electronic control unit through the diagnosis joint.
The inlet of the pump is hermetically connected with one end of the suction pipe, the other end of the suction pipe extends into an oil tank on one side of the pump, specific liquid is filled in the oil tank, and the other end of the suction pipe is submerged below the liquid level.
The metering device comprises a container for collecting the amount of the oil sprayed by each oil sprayer, and the container is placed on the weighing instrument.
The specific liquid is the fuel used by the engine under test.
The invention also provides a calibration method of the vehicle-mounted oil consumption detection equipment, which is characterized by comprising the following steps of:
a. a data acquisition instrument in signal connection with the engine electric control unit acquires an oil injection control signal in a time period;
b. the data acquisition instrument transmits the oil injection control signal to a data processing device in signal connection with the data acquisition instrument for analysis and signal conversion;
c. the data processing device sends the converted signals to an electronic driving module in signal connection with the data processing device;
d. the electronic driving module controls a pump on one side to pump specific liquid according to the received conversion signal and sends the specific liquid to the inlet end of each appointed oil injector at a set pressure;
e. the electronic driving module controls the injection action of each oil injector according to the received conversion signal and the oil injection control signal acquired by the data acquisition instrument;
f. and a metering device at one side of the oil sprayer collects and calculates the liquid amount sprayed by all the oil sprayers, and then the liquid amount is compared and compared with the oil spraying amount calculated in the same time period of the engine electric control unit.
The number of the data processing devices is 2, one data processing device is in signal connection with the data acquisition instrument, the other data processing device is in signal connection with the electronic driving module, and the 2 data processing devices are in remote communication through a wired or wireless network.
The data processing device in signal connection with the data acquisition instrument transmits the acquired oil injection signal to the other data processing device, and the other data processing device analyzes and converts the oil injection control signal and then sends the oil injection control signal to the electronic driving module.
Compared with the prior art, the invention has the technical effects that:
(1) the data acquisition instrument acquires an oil injection control signal and then sends the oil injection control signal to the data processing device, the data processing device reappears the injection process of the oil injector on the engine in the external environment through the electronic driving module, the pump and the oil injector, and the liquid amount sprayed by the oil injector is compared with the calculated value of the electronic control unit of the engine, so that the oil consumption detection process of the electronic control unit of the engine is accurate, and the vehicle-mounted oil consumption detection equipment is detected and calibrated under the condition that the oil injector is not detached.
(2) Utilize 2 data processing device to carry out long-range detection and calibration process for the testing process can be accomplished in strange land, has improved detection and accurate efficiency.
(3) The computer has better compatibility and universality, is easy to obtain as common data processing equipment, and can obviously improve the detection efficiency compared with other equipment.
(4) Compared with the mode of externally connecting a cable at a pin of the ECU to acquire data therein, the method has the advantages that the data in the ECU can be directly read by using the diagnosis connector 5 more conveniently, and the reliability is higher.
(5) The pump sucks specific liquid through the suction pipe, and the pump is far away from the liquid, so that faults of short circuit and the like of the pump caused by overlarge humidity are avoided.
(6) The existing measuring tool such as a measuring cylinder is used for directly measuring the volume of liquid, errors are generated in the measuring process due to bubbles contained in the liquid, the liquid volume is calculated by using the weight obtained by a weighing instrument, and the measurement is more accurate.
(7) The specific liquid can be used for detecting the fuel used by the engine, and the injection quantity of all the fuel injectors can be obtained from the weighing instrument more directly.
(8) When 2 data processing devices are adopted, the first data processing device in signal connection with the data acquisition instrument is only responsible for acquiring oil injection signals and then transmitting the oil injection signals to the second data processing device; compared with the first data processing device which acquires the oil injection signal and then carries out signal analysis and conversion, the converted signal is transmitted to the second data processing device through the network, the workload of the first data processing device can be reduced, and the first data processing device can acquire the oil injection signal more timely and more accurately.
Drawings
In order to clearly illustrate the innovative principles of the present invention and its technical advantages compared with the prior art products, a possible embodiment is illustrated below by way of non-limiting example applying said principles, with the aid of the annexed drawings. In the figure:
fig. 1 is a schematic structural diagram of a calibration device of a vehicle-mounted fuel consumption detection apparatus in embodiment 1 of the present invention;
FIG. 2 is a waveform of an oil injection signal from an electronic control unit of the engine according to the present invention;
fig. 3 is a schematic structural diagram of a calibration device of a vehicle-mounted fuel consumption detection apparatus in embodiment 2 of the present invention.
Detailed Description
As shown in fig. 1 and 3, the reference numerals in the drawings mean an engine Electronic Control Unit (ECU) 1, a lead 2, a first fuel supply pipe 3, a first fuel injector 4, a diagnostic connector 5, a data acquisition instrument 6, a first computer 7, the internet 8, a fuel tank 9, a second computer 10, an electronic drive module 11, a pump 12, a second fuel supply pipe 13, a suction pipe 14, a second fuel injector 15, a container 16 and a weighing instrument 17.
Example 1
As shown in fig. 1, an engine Electronic Control Unit (ECU) 1 is electrically connected with each injector one 4 on the engine through a lead 2 and controls the injection action of each injector one 4, each injector one 4 is hermetically communicated with each corresponding outlet of an oil supply pipe one 3 above the injector one 4, and the oil pressure in the oil supply pipe one 3 is kept constant under the action of a pressure limiting valve. The ECU is electrically connected with the diagnosis joint 5 on one side through a wire, the diagnosis joint 5 is electrically connected with the data acquisition instrument 6, the data acquisition instrument 6 is electrically connected with the first computer 7, the first computer 7 is electrically connected with the electronic driving module 11 on the other side, the electronic driving module 11 is electrically connected with the adjacent pump 12 and controls the operation of the pump 12, and the electronic driving module 11 is also electrically connected with the plurality of second oil injectors 15 on the lower side of the electronic driving module and controls the injection action of the second oil injectors 15. The inlet of the pump 12 is hermetically connected with the upper end of a suction pipe 14 below the pump, the lower end of the suction pipe 14 extends into the liquid level in the oil tank 9 below the suction pipe, and the oil tank 9 is filled with fuel oil for the engine with a certain volume. The outlet of the pump 12 is hermetically connected with the inlet of the second oil supply pipe 13, and each outlet of the second oil supply pipe 13 is hermetically connected with the inlet end of each corresponding second oil injector 15. The second oil injector 15 and the first oil injector 4 are of the same type and are in the same number. A container 16 is arranged on the lower side of each oil sprayer two 15, the container 16 is used for containing oil sprayed by each oil sprayer two 15, and the container 16 is placed on a weighing instrument 17 on the lower side of the container.
The working process of the invention is that the computer I7 reads the control signal waveform of the injection action of each fuel injector I4 controlled by the ECU from the ECU through the data acquisition instrument 6 and the diagnosis joint 5, as shown in figure 2, all the control signal waveforms in a certain time range t are recorded, the computer I7 carries out signal conversion after analyzing and processing the acquired data, and the computer I7 uses the converted signal to drive the pump 12 through the electronic driving module 11 to pump the fuel oil in the oil tank 9 into the oil supply pipe II 13 and keep the oil pressure in the oil supply pipe II 13 consistent with the oil pressure in the oil supply pipe I3. And the computer I7 controls the injection action of each second oil injector 15 by using the converted signal and according to the waveform of the control signal collected before, detects the fuel quantity in the container 16 by using the weighing instrument 17 after the oil injection process of each second oil injector 15 is finished, and compares the fuel quantity with the fuel injection quantity of the first oil injector 4 calculated by the ECU in the time range t, thereby calibrating the fuel injection quantity calculation program of the ECU.
The oil sprayer on the original engine does not need to be disassembled in the oil injection quantity calibration process, and only a plurality of oil sprayers with the same types as the oil sprayers on the original engine need to be replaced, so that the detection process is convenient and quick, and the method is particularly suitable for detecting the oil injection quantity of the whole assembled engine without disassembly.
Example 2
The present example differs from example 1 in that: the computer I7 is in wired or wireless network communication connection with the computer II 10 through the Internet 8, the computer II 10 is electrically connected with the adjacent electronic driving module 11, the computer I7 sends acquired data to the computer II 10, the computer II 10 carries out signal conversion after analyzing and processing the data, the computer II 10 utilizes the converted signals to drive the pump 12 through the electronic driving module 11 to pump fuel in the fuel tank 9 into the fuel supply pipe II 13 and keep the oil pressure in the fuel supply pipe II 13 consistent with the oil pressure in the fuel supply pipe I3, and the computer II 10 utilizes the converted signals to control the injection action of each fuel injector II 15 according to the waveform of the previously acquired control signals.
In the embodiment, the data acquisition instrument 6 and the first computer 7 are located at the location of the engine, and the second computer 10, the electronic driving module 11, the pump 12, the second oil injector 15, the container 16 and the weighing instrument 17 can be located at the location of detection personnel, so that the remote oil consumption detection device is suitable for remote oil consumption detection and calibration, and the detection flexibility and convenience are improved.
The fuel tank 9 can store water or other solutions with known density, corresponding fuel quantity is indirectly calculated according to the density ratio between the solution and the fuel, and the corresponding fuel quantity is compared and calibrated with the fuel injection quantity calculated by the ECU.
The first computer 7 and the second computer 10 belong to a data processing device.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (3)
1. A calibration method of vehicle-mounted oil consumption detection equipment is characterized by comprising the following steps:
a. a data acquisition instrument (6) in signal connection with an engine electronic control unit acquires an oil injection control signal in a time period;
b. the data acquisition instrument (6) transmits the oil injection control signal to a data processing device in signal connection with the data acquisition instrument for analysis and signal conversion;
c. the data processing device sends the converted signals to an electronic driving module (11) connected with the signals;
d. the electronic driving module (11) controls a pump (12) at one side to pump specific liquid according to the received conversion signal and sends the specific liquid to the inlet end of each appointed oil injector at set pressure;
e. the electronic driving module (11) controls the injection action of each oil injector according to the received conversion signal and the oil injection control signal acquired by the data acquisition instrument (6);
f. and the metering device on one side of the oil sprayer collects and calculates the liquid amount sprayed by all the oil sprayers, and then the liquid amount is compared and calibrated with the oil spraying amount calculated in the same time period of the engine electric control unit.
2. The calibration method of the vehicle fuel consumption detection device according to claim 1, characterized in that: the number of the data processing devices is 2, one data processing device is in signal connection with the data acquisition instrument (6), the other data processing device is in signal connection with the electronic driving module (11), and the 2 data processing devices are in remote communication through a wired or wireless network.
3. The calibration method of the vehicle fuel consumption detection device according to claim 2, characterized in that: the data processing device in signal connection with the data acquisition instrument (6) transmits the acquired oil injection signal to the other data processing device, and the other data processing device analyzes and converts the oil injection control signal and then sends the oil injection control signal to the electronic driving module (11).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210740601.0A CN115288903B (en) | 2017-01-03 | 2017-01-03 | Working method of vehicle-mounted oil consumption detection equipment calibration device |
| CN202210735350.7A CN115030848B (en) | 2017-01-03 | 2017-01-03 | Method for calibrating fuel consumption metering data of vehicle-mounted fuel consumption detection equipment |
| CN201710000729.2A CN106704069B (en) | 2017-01-03 | 2017-01-03 | Vehicle-mounted oil consumption detection equipment calibration device and calibration method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710000729.2A CN106704069B (en) | 2017-01-03 | 2017-01-03 | Vehicle-mounted oil consumption detection equipment calibration device and calibration method |
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| CN202210740601.0A Division CN115288903B (en) | 2017-01-03 | 2017-01-03 | Working method of vehicle-mounted oil consumption detection equipment calibration device |
| CN202210735350.7A Division CN115030848B (en) | 2017-01-03 | 2017-01-03 | Method for calibrating fuel consumption metering data of vehicle-mounted fuel consumption detection equipment |
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| CN106704069A CN106704069A (en) | 2017-05-24 |
| CN106704069B true CN106704069B (en) | 2022-07-26 |
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| CN202210740601.0A Active CN115288903B (en) | 2017-01-03 | 2017-01-03 | Working method of vehicle-mounted oil consumption detection equipment calibration device |
| CN201710000729.2A Active CN106704069B (en) | 2017-01-03 | 2017-01-03 | Vehicle-mounted oil consumption detection equipment calibration device and calibration method |
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| CN202210735350.7A Active CN115030848B (en) | 2017-01-03 | 2017-01-03 | Method for calibrating fuel consumption metering data of vehicle-mounted fuel consumption detection equipment |
| CN202210740601.0A Active CN115288903B (en) | 2017-01-03 | 2017-01-03 | Working method of vehicle-mounted oil consumption detection equipment calibration device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115030848A (en) * | 2017-01-03 | 2022-09-09 | 江苏新通达电子科技股份有限公司 | Method for calibrating oil consumption metering data of vehicle-mounted oil consumption detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108167102A (en) * | 2017-12-27 | 2018-06-15 | 北京恩吉威科技股份有限公司 | Fuel gas injection valve detection method and detection device based on air pressure detection |
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- 2017-01-03 CN CN202210735350.7A patent/CN115030848B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115030848B (en) | 2023-04-25 |
| CN115030848A (en) | 2022-09-09 |
| CN106704069A (en) | 2017-05-24 |
| CN115288903A (en) | 2022-11-04 |
| CN115288903B (en) | 2023-10-24 |
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