CN113565747B - Special electronic pump test device and test method for hybrid transmission - Google Patents
Special electronic pump test device and test method for hybrid transmission Download PDFInfo
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- CN113565747B CN113565747B CN202110852859.5A CN202110852859A CN113565747B CN 113565747 B CN113565747 B CN 113565747B CN 202110852859 A CN202110852859 A CN 202110852859A CN 113565747 B CN113565747 B CN 113565747B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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Abstract
A special electronic pump test device and a test method for a hybrid transmission belong to the measurement of the performance of a special hybrid electronic pump. The device can effectively solve the problem of testing the flow rate and the capacity of the electronic pump. According to the test device, a mechanical pump oil supply system, a flowmeter B and a ball valve B are sequentially arranged on a first branch of an oil temperature control system, an electronic pump measured piece, a flowmeter C and a ball valve A are sequentially arranged on a second branch of the oil temperature control system, and outlets of the ball valve A and the ball valve B are converged on a pipeline provided with the flowmeter A. According to the test method, a ball valve A is closed, and a ball valve B is opened; a rotating speed command is issued to a tested piece of the electronic pump through the RapidECU, the oil suction temperature is controlled through the oil temperature control system, the working backpressure of the electronic pump is controlled through the oil pressure control system, and the efficiency and the performance of the electronic pump under different working conditions are examined through the combination of different rotating speeds and different backpressure. The invention has the advantages of simple and reliable operation, convenient troubleshooting and the like, and can reduce the test cost.
Description
Technical Field
The invention belongs to the measurement of the performance of an electronic pump special for hybrid transmission, and particularly relates to a test device and a test method of the electronic pump special for the hybrid transmission.
Background
In an oil-electric hybrid driving system, most hybrid special transmissions adopt a hydraulic control mode to realize gear ratio switching. Hydraulic control is also mostly used in conventional automatic transmissions. Unlike the conventional power, the oil supply unit of the hybrid dedicated transmission may be provided by an electronic pump and a mechanical pump or by the electronic pump alone as the oil supply unit. In the conventional power automatic transmission, a mechanical pump is driven by an engine to serve as an oil supply unit. Therefore, for the conventional power, the independent operation capability of the newly added electronic pump oil supply unit, whether the problems occur when the units are coordinated and operated simultaneously, and how to distribute the required flow rate are new issues, so how to effectively test the flow rate and capability of the electronic pump is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides a testing device and a testing method for the independent operation capacity and the coordination operation capacity of an electronic pump and a mechanical pump of a hybrid special transmission. The electronic pump flow and capacity testing device can effectively test the flow and capacity of the electronic pump, check the electronic pump as an independent unit, eliminate the influence of external factors, monitor and analyze each state of the electronic pump, and perform careful and accurate evaluation on the whole electronic pump.
The technical scheme adopted for realizing the purpose is as follows:
a special electronic pump test device for a hybrid transmission comprises an oil temperature control system, a battery simulator, a power analyzer, a RapidECU and an oil pressure control system;
the branch I of the oil temperature control system is sequentially provided with a mechanical pump oil supply system, a flowmeter B and a ball valve B, the branch II of the oil temperature control system is sequentially provided with an electronic pump measured piece, a flowmeter C and a ball valve A, the outlets of the ball valve A and the ball valve B are converged on a pipeline provided with the flowmeter A,
the battery simulator supplies electric energy to the tested piece of the electronic pump, supports voltage regulation,
the power analyzer is used for measuring the power of the tested piece of the electronic pump,
the RapidECU is used for sending a rotating speed signal to an electronic pump measured piece,
the flowmeter A, the flowmeter B and the flowmeter C transmit flow information to the data acquisition system through analog quantity signals,
the oil pressure control system, the oil temperature control system and the power analyzer transmit information of backpressure, oil temperature and electric power to the data acquisition system through analog quantity signals,
and the RapidECU transmits the feedback working state information of the electronic pump to the data acquisition system when the tested piece works.
The power analyzer measures the electric power of the tested piece when the electronic pump works through the current sensor and the voltage test wire so as to test the efficiency.
And the RapidECU transmits the rotating speed signal to the tested piece of the electronic pump through CAN communication.
And the RapidECU transmits the feedback working state information of the tested piece of the electronic pump during working to the data acquisition system through CAN communication.
The test method of the special electronic pump test device for the hybrid transmission comprises the following steps of:
s1, closing a ball valve A, and opening a ball valve B;
s2, issuing a rotating speed command to the tested piece of the electronic pump through a RapidECU;
and S3, controlling the oil absorption temperature through an oil temperature control system, controlling the working backpressure of the electronic pump through the oil pressure control system, and checking the efficiency and the performance of the electronic pump under different working conditions through the combination of different rotating speeds and backpressure.
The test method of the special electronic pump test device for the hybrid transmission comprises the following steps of:
s1, opening a ball valve A and a ball valve A;
s2, checking the mutual influence condition when the electronic pump and the mechanical pump work cooperatively through the numerical values of the flowmeter A, the flowmeter B and the flowmeter C;
and S3, the working condition of the optimal performance of the electronic pump is verified in a cross mode by controlling different rotating speeds of the two oil supply units, and a basis is provided for subsequent actual work.
The invention has the beneficial effects that: when the testing device is applied, the working state of any one oil supply unit can be independently monitored, and the states of the independent oil supply units can be respectively monitored when two oil supply units work simultaneously, and compared with the capacity of final cooperative work. The combined working condition of the two oil supply units under different flow rates can be realized, and the mutual influence condition of the two oil supply units is examined. The performance of a single oil supply unit can be checked and verified. The working condition under the actual working state is simulated to a great extent, and the smooth test is ensured to a great extent. And the method has the advantages of simple and reliable operation, convenient troubleshooting and the like, and can reduce the test cost.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
wherein: 1. a flowmeter A; 2. a ball valve A; 3. a ball valve B; 4. a flow meter B; 5. a flow meter C; 6. a power analyzer; 7. a battery simulator; 8. a data acquisition system; 9. a RapidECU; 10. an electronic pump tested piece; 11. an oil temperature control system; 12. an oil supply system of the mechanical pump; 13. an oil pressure control system.
Detailed Description
For a better understanding of the objects, structure and function of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings 1.
The test device additionally adds an electronic pump control unit consisting of a WT3000E high-precision power analyzer 6, a battery simulator 7, a rapid ECU9 and the like by utilizing the original traditional oil pump test bed (comprising an oil temperature control system, a mechanical pump oil supply system, an oil pressure control system and a flowmeter), uniformly acquires information through an acquisition system 8, and verifies the performance of the electronic pump through the simulation of different working conditions.
Add the tee bend with flowmeter A1 entrance in traditional oil pump test bench, insert flowmeter A1 with the oil outlet of mechanical pump fuel feeding unit and the oil outlet of electronic pump through the tee bend, measure the flow of joint work time. And two flowmeters are respectively added in the two paths to measure the two paths of independent flow.
The battery simulator 7 provides power for the electronic pump and can support the electronic pump with low voltage and high voltage requirements.
The power analyzer 6 collects the voltage and current of the electronic pump during operation. And sends the collected information to the data collection system 8.
The RapidECU9 controls the rotating speed of the electronic pump through a CAN network communication protocol. And sends the collected information to the data collection system 8.
The traditional oil pump test bed provides a mechanical pump oil supply system 12, an oil pressure control system 13 and an oil temperature control system 11 for the test. And sends the collected information to the data collection system 8.
The method specifically comprises the following steps: a special electronic pump test device for a hybrid transmission comprises an oil temperature control system 11, a battery simulator 7, a power analyzer 6, a RapidECU9 and an oil pressure control system 13;
a mechanical pump oil supply system 12, a flowmeter B4 and a ball valve B3 are sequentially arranged on a first branch of the oil temperature control system 11, an electronic pump measured piece 10, a flowmeter C5 and a ball valve A2 are sequentially arranged on a second branch of the oil temperature control system 11, outlets of the ball valve A2 and the ball valve B3 are converged on a pipeline for installing the flowmeter A1,
the battery simulator 7 supplies electric energy to the electronic pump tested piece 10, and the battery simulator 7 supports pressure regulation and can be used for various types of electronic pumps.
The power analyzer 6 is used to measure the power of the electronic pump test piece 10,
the RapidECU9 is used for sending a rotating speed signal to the electronic pump tested piece 10,
the flowmeter A1, the flowmeter B4 and the flowmeter C5 transmit flow information to the data acquisition system 8 through analog quantity signals,
the oil pressure control system 13, the oil temperature control system 11 and the power analyzer 6 transmit information of back pressure, oil temperature and electric power to the data acquisition system 8 through analog quantity signals,
the RapidECU9 transmits the feedback working state information of the electronic pump tested piece 10 during working to the data acquisition system 8.
The data acquisition system 8 is used for synchronously acquiring information of all the test units, synchronously analyzing and ensuring test control precision and test accuracy.
The power analyzer 6 measures the electric power of the electronic pump device under test 10 during operation through a current sensor and a voltage test line to test the efficiency.
The RapidECU9 transmits a rotating speed signal to the electronic pump tested piece 10 through CAN communication.
The RapidECU9 transmits the feedback working state information of the electronic pump tested piece 10 during working to the data acquisition system 8 through CAN communication.
The test method of the special electronic pump test device for the hybrid transmission comprises the following steps of:
s1, closing a ball valve A2, and opening a ball valve B3;
s2, sending a rotating speed command to the tested piece 10 of the electronic pump through a RapidECU9,
s3, controlling the oil absorption temperature through the oil temperature control system 11, controlling the working backpressure of the electronic pump through the oil pressure control system 13, and checking the efficiency and the performance of the electronic pump under different working conditions through the combination of different rotating speeds and backpressure.
The test method of the special electronic pump test device for the hybrid transmission comprises the following steps of:
s1, opening a ball valve A2 and a ball valve B3,
s2, checking the mutual influence condition through the numerical values of the flowmeter A1, the flowmeter B4 and the flowmeter C5 when the electronic pump and the mechanical pump work cooperatively,
and S3, the working condition of the optimal performance of the electronic pump is verified in a cross mode by controlling different rotating speeds of the two oil supply units, so that a basis is provided for subsequent actual work.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides a special electronic pump test device of hybrid transmission which characterized in that: the system comprises an oil temperature control system (11), a battery simulator (7), a power analyzer (6), a RapidECU (9) and an oil pressure control system (13);
a mechanical pump oil supply system (12), a flowmeter B (4) and a ball valve B (3) are sequentially arranged on a first branch of the oil temperature control system (11), an electronic pump measured piece (10), a flowmeter C (5) and a ball valve A (2) are sequentially arranged on a second branch of the oil temperature control system (11), outlets of the ball valve A (2) and the ball valve B (3) are converged on a pipeline for mounting the flowmeter A (1),
the battery simulator (7) supplies electric energy to the tested piece (10) of the electronic pump, the battery simulator (7) supports pressure regulation,
the power analyzer (6) is used for measuring the power of the measured piece (10) of the electronic pump,
the RapidECU (9) is used for transmitting a rotating speed signal to the electronic pump tested piece (10),
the flowmeter A (1), the flowmeter B (4) and the flowmeter C (5) transmit flow information to the data acquisition system (8) through analog quantity signals,
the oil pressure control system (13), the oil temperature control system (11) and the power analyzer (6) transmit information of back pressure, oil temperature and electric power to the data acquisition system (8) through analog quantity signals,
the RapidECU (9) transmits the feedback working state information of the electronic pump tested piece (10) during working to the data acquisition system (8),
the power analyzer (6) measures the electric power of the electronic pump tested piece (10) during operation through a current sensor and a voltage test line so as to test the efficiency.
2. The special electronic pump test device for the hybrid transmission according to claim 1, wherein: and the RapidECU (9) transmits a rotating speed signal to the electronic pump tested piece (10) through CAN communication.
3. The electronic pump test device special for the hybrid transmission according to claim 1, wherein: the RapidECU (9) transmits the feedback working state information of the electronic pump tested piece (10) during working to the data acquisition system (8) through CAN communication.
4. A test method using the electronic pump test apparatus for a hybrid transmission according to claim 1, characterized in that:
the basic performance and full-range performance test of the electronic pump comprises the following steps:
s1, closing a ball valve A (2), and opening a ball valve B (3);
s2, issuing a rotating speed command to the electronic pump tested piece (10) through a RapidECU (9);
s3, controlling the oil absorption temperature through the oil temperature control system (11), controlling the working backpressure of the electronic pump through the oil pressure control system (13), and checking the efficiency and the performance of the electronic pump under different working conditions through the combination of different rotating speeds and backpressure.
5. A test method using the special electronic pump test apparatus for a hybrid transmission according to claim 1, characterized in that:
the cooperative work test of the electronic pump and the mechanical pump comprises the following steps:
s1, opening a ball valve A (2) and a ball valve B (3);
s2, checking the mutual influence condition when the electronic pump and the mechanical pump work cooperatively through the numerical values of the flowmeter A (1), the flowmeter B (4) and the flowmeter C (5);
and S3, the working condition of the optimal performance of the electronic pump is verified in a cross mode by controlling different rotating speeds of the two oil supply units, and a basis is provided for subsequent actual work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110852859.5A CN113565747B (en) | 2021-07-27 | 2021-07-27 | Special electronic pump test device and test method for hybrid transmission |
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| CN202110852859.5A CN113565747B (en) | 2021-07-27 | 2021-07-27 | Special electronic pump test device and test method for hybrid transmission |
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| CN113565747B true CN113565747B (en) | 2023-03-28 |
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| CN116447317B (en) * | 2023-03-29 | 2024-10-18 | 哈尔滨东安汽车发动机制造有限公司 | Control method for electronic oil pump of special hybrid transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101440799B (en) * | 2008-12-05 | 2011-09-21 | 奇瑞汽车股份有限公司 | Steering oil pump durability test apparatus |
| CN101487465A (en) * | 2009-02-20 | 2009-07-22 | 朱留存 | Oil pump performance detection tester for continuously variable transmission |
| CN103306965A (en) * | 2013-06-07 | 2013-09-18 | 朱宏 | Performance detection system for automotive electronic fuel pump |
| CN108006209B (en) * | 2017-03-29 | 2019-12-13 | 长城汽车股份有限公司 | Double-clutch automatic gearbox cooling and lubricating hydraulic control system and vehicle |
| CN208348214U (en) * | 2018-04-25 | 2019-01-08 | 世特科汽车工程产品（常州）有限公司 | A kind of portable electronic pump performance test stand |
| CN109580219B (en) * | 2018-12-19 | 2020-03-24 | 安徽江淮汽车集团股份有限公司 | Method and device for detecting function of double-pump clutch |
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