CN109580219B - Method and device for detecting function of double-pump clutch - Google Patents
Method and device for detecting function of double-pump clutch Download PDFInfo
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- CN109580219B CN109580219B CN201811556572.2A CN201811556572A CN109580219B CN 109580219 B CN109580219 B CN 109580219B CN 201811556572 A CN201811556572 A CN 201811556572A CN 109580219 B CN109580219 B CN 109580219B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 9
- 238000010998 test method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000012797 qualification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
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Abstract
The invention discloses a method and a device for detecting functions of a double-pump clutch, wherein the method comprises the following steps: the reversing pressure detection and the reversing time detection of the reversing valve are as follows: starting the mechanical oil pump and the electronic oil pump; adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; acquiring a reversing valve pressure value in a pressure time period of the main pressure regulating electromagnetic valve to obtain a pressure sudden change value, wherein the sudden change value is the reversing pressure value; the commutation time is detected as: starting the mechanical oil pump and the electronic oil pump; adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; the method comprises the steps of obtaining a reversing valve pressure value in a pressure time interval of a main pressure regulating solenoid valve, obtaining a main pressure slide valve pressure value in the time interval, and respectively obtaining the time of the sudden change of the reversing valve pressure value and the time of the sudden change of the main pressure slide valve pressure value, wherein the time difference between the two is the reversing time. The method and the device for detecting the function of the double-pump clutch can realize multifunctional detection.
Description
Technical Field
The invention relates to a method and equipment for detecting functions of a double-pump clutch.
Background
At present, the function and performance test of a single mechanical oil pump, an electronic oil pump and a single mechanical valve cannot be carried out on the whole module for newly developed double-pump DCT (double clutch transmission DCT for short, and the double clutch transmission is called as Dual Clutch Transmission).
Disclosure of Invention
The invention aims to provide a method and equipment for detecting functions of a double-pump clutch, which can realize detection of multiple functions.
The invention discloses a function detection method of a double-pump clutch, which comprises the following steps: the method comprises the following steps of detecting reversing pressure and reversing time of a reversing valve, wherein the reversing pressure is detected as follows: starting the mechanical oil pump and the electronic oil pump; adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; acquiring a reversing valve pressure value in a pressure time period of a main pressure regulating electromagnetic valve to obtain a pressure sudden change value, wherein the sudden change value is the reversing pressure value; the commutation time is detected as: starting the mechanical oil pump and the electronic oil pump; adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; the method comprises the steps of obtaining a reversing valve pressure value in a pressure time interval of a main pressure regulating solenoid valve, obtaining a main pressure slide valve pressure value in the time interval, and respectively obtaining the time of the sudden change of the reversing valve pressure value and the time of the sudden change of the main pressure slide valve pressure value, wherein the time difference between the two is the reversing time.
The method for detecting the function of the double-pump clutch further comprises the following steps: detecting the performance of the energy accumulator; the accumulator performance detection is as follows: measuring a first pressure value of a main oil way under the state that the energy accumulator is removed, and recording a first pressure fluctuation amplitude in unit time; under the state of being connected with the energy accumulator, measuring a second pressure value of the main oil way, and recording a second pressure fluctuation amplitude in unit time; the first pressure fluctuation amplitude and the second pressure fluctuation amplitude are compared.
The method for detecting the function of the double-pump clutch further comprises the following steps: detecting the opening pressure of the check valve; the check valve opening pressure is detected as follows: detecting a third pressure of the main oil path; detecting a fourth pressure between the reversing valve and the check valve; a pressure differential of the third pressure and the fourth pressure is obtained.
The method for detecting the function of the double-pump clutch further comprises the following steps: testing the oil supply quantity of the electronic oil pump and measuring the oil supply quantity of the mechanical oil pump; the oil supply quantity test of the electronic oil pump is as follows: starting the electronic oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the electronic oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the electronic oil pump; the oil supply quantity test of the mechanical oil pump is as follows: and starting the mechanical oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the mechanical oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the mechanical oil pump.
A double pump clutch function detecting apparatus for use in the above detecting method, comprising: the oil pump detection device comprises an electronic oil pump detection plate, a mechanical oil pump detection plate and a partition plate; the electronic oil pump detection plate is provided with a first surface and a second surface, the first surface is a functional surface, the second surface is an oil way surface, and the electronic oil pump detection plate is provided with an oil way for communicating the first surface and the second surface; the mechanical oil pump detection plate is provided with a third surface and a fourth surface, the third surface is a functional surface, the fourth surface is an oil way surface, and the mechanical oil pump detection plate is provided with an oil way for communicating the third surface and the fourth surface; the partition plate is provided with an oil path and is clamped between the second surface and the fourth surface to form a complete oil path; wherein, be provided with on the first face: the electronic oil pump mounting surface is used for mounting an electronic oil pump; the main pressure electromagnetic valve, the energy accumulator, the first pressure sensor and the second pressure sensor; the third surface is provided with: the mechanical oil pump mounting surface is used for mounting a mechanical oil pump; and, a main pressure spool, a relief valve; and a one-way valve and a reversing valve are arranged on the electronic oil pump detection plate or the mechanical oil pump detection plate.
The function detection equipment for the double-pump clutch comprises a mechanical oil pump mounting surface, a mechanical oil pump mounting hole, a mechanical oil pump connecting hole and a complete oil path, wherein the mechanical oil pump mounting hole is communicated with the complete oil path; and the electronic oil pump mounting surface is provided with an electronic oil pump connecting hole which is communicated with the complete oil circuit.
The function detecting apparatus of a twin pump clutch as described above, wherein the complete oil passage includes: one end of the main oil way is communicated with the energy accumulator, and the other end of the main oil way is communicated with the reversing valve; the two auxiliary oil passages are respectively communicated with a test hole, and the test holes are formed in the electronic oil pump detection plate or the mechanical oil pump detection plate; the first end of the main pressure slide valve is communicated with the main oil way, the second end of the main pressure slide valve is communicated with the first end of the main pressure electromagnetic valve, and the second end of the main pressure electromagnetic valve is communicated with the one-way valve; the one-way valve is communicated between the second end of the main pressure solenoid valve and the reversing valve; the first pressure sensor is communicated with one end, close to the accumulator, of the main oil way; the second pressure sensor is in communication between the one-way valve and the reversing valve.
The method and the device for detecting the function of the double-pump clutch can realize multifunctional detection and are convenient to use.
Drawings
FIG. 1 is a schematic view of one perspective of the dual pump clutch function test apparatus of the present invention;
FIG. 2 is a schematic view of another perspective of the dual pump clutch function test apparatus of the present invention;
FIG. 3 is a schematic view of a fourth side of a mechanical oil pump detection plate of the double-pump clutch function detection apparatus according to the present invention;
FIG. 4 is a schematic view of a spacer plate in the function testing apparatus for a twin pump clutch according to the present invention;
fig. 5 is a schematic diagram of a main oil passage in the double-pump clutch function detection apparatus of the present invention.
Reference numerals:
an electronic oil pump detection plate 1; a mechanical oil pump detection plate 2; a partition plate 3; a main pressure solenoid valve 4; an accumulator 5; a main pressure slide valve 6; a safety valve 7; a direction change valve 8; a first pressure sensor 91; a second pressure sensor 92; a one-way valve 11.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention discloses a function detection method of a double-pump clutch, which comprises the following steps: the method comprises the following steps of detecting reversing pressure and reversing time of a reversing valve, wherein the reversing pressure is detected as follows:
starting the mechanical oil pump and the electronic oil pump;
adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; and acquiring a pressure value of the reversing valve in a pressure period of the main pressure regulating electromagnetic valve to obtain a pressure sudden change value, wherein the sudden change value is the reversing pressure value.
The commutation time is detected as:
starting the mechanical oil pump and the electronic oil pump;
adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s; the method comprises the steps of obtaining a reversing valve pressure value in a pressure time interval of a main pressure regulating solenoid valve, obtaining a main pressure slide valve pressure value in the time interval, and respectively obtaining the time of the sudden change of the reversing valve pressure value and the time of the sudden change of the main pressure slide valve pressure value, wherein the time difference between the two is the reversing time.
Further comprising: the method for detecting the performance of the energy accumulator comprises the following steps:
and under the state that the energy accumulator is removed, measuring a first pressure value of the main oil way, and recording a first pressure fluctuation amplitude in unit time.
And under the state of connecting the energy accumulator, measuring a second pressure value of the main oil way, and recording a second pressure fluctuation amplitude in unit time.
The first pressure fluctuation amplitude and the second pressure fluctuation amplitude are compared.
And the second pressure fluctuation amplitude generally needs to be less than or equal to 4bar to represent qualification, and meanwhile, the first pressure fluctuation amplitude and the second pressure fluctuation amplitude are compared to obtain that the fluctuation amplitude attenuation reaches 40% before the qualification is calculated.
Both the first and second pressure values mentioned above may be measured by a first pressure sensor 91 mentioned below.
Further comprising: the method for detecting the opening pressure of the check valve comprises the following steps:
the check valve opening pressure is detected as follows:
detecting a third pressure of the main oil passage, which may be measured by a first pressure sensor 91 mentioned below;
detecting a fourth pressure between the directional valve and the check valve, which may be measured by a second pressure sensor 92 mentioned below;
a pressure differential of the third pressure and the fourth pressure is obtained. The third pressure value is typically the pressure of the main flow path and will be greater than the fourth pressure value. Here, generally, a fourth pressure value between the third pressure values is used, and the difference between 0.1N and 0.3N is obtained as an acceptable value (including 0.1N and 0.3N).
Further comprising: testing the oil supply quantity of the electronic oil pump and measuring the oil supply quantity of the mechanical oil pump.
The method for testing the oil supply quantity of the electronic oil pump comprises the following steps:
and starting the electronic oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the electronic oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the electronic oil pump.
The oil supply quantity test of the mechanical oil pump is as follows:
and starting the mechanical oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the mechanical oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the mechanical oil pump.
When the oil supply quantity of the electronic oil pump is tested, the mechanical oil pump stops working, and when the oil supply quantity of the mechanical oil pump is tested, the electronic oil pump stops working.
In some embodiments, the method for detecting the sealing performance of the one-way valve comprises the following steps:
the first pressure sensor 91 (see the structural description below in detail) is removed, whether oil has oozed out is observed, and the oozing amount per unit time is measured.
A double pump clutch function detecting apparatus for use in any one of the above detecting methods, referring to fig. 1 to 4, comprising:
an electronic oil pump detection plate 1, a mechanical oil pump detection plate 2 and a partition plate 3; wherein,
the electronic oil pump detection plate 1 is provided with a first surface and a second surface, the first surface is a functional surface, the second surface is an oil way surface, and the electronic oil pump detection plate 1 is provided with an oil way for communicating the first surface and the second surface;
the mechanical oil pump detection plate 2 is provided with a third surface and a fourth surface, the third surface is a functional surface, the fourth surface is an oil way surface, and the mechanical oil pump detection plate 2 is provided with an oil way for communicating the third surface and the fourth surface;
the partition plate 3 is provided with an oil path, and the partition plate 3 is clamped between the second surface and the fourth surface to form a complete oil path.
Wherein, be provided with on the first face: the electronic oil pump mounting surface is used for mounting an electronic oil pump; and, the line pressure solenoid valve 4, the accumulator 5, the first pressure sensor 91 and the second pressure sensor 92;
the third surface is provided with: the mechanical oil pump mounting surface is used for mounting a mechanical oil pump; and, a main pressure spool 6, a safety valve 7;
the electronic oil pump detection plate 1 or the mechanical oil pump detection plate 2 is mechanically provided with a check valve 11 and a reversing valve 8. As shown in fig. 1 and 3, in the present embodiment, the check valve 11 and the selector valve 8 are provided on the mechanical oil pump detection plate 2. As can be seen from fig. 3, the check valve 11 is provided on the fourth side.
The mechanical oil pump mounting surface is provided with a mechanical oil pump connecting hole which is communicated with the complete oil circuit;
and the electronic oil pump mounting surface is provided with an electronic oil pump connecting hole which is communicated with the complete oil circuit.
Referring to fig. 5, the complete oil path includes: the main oil passage and the auxiliary oil passage.
One end of the main oil way is communicated with the energy accumulator 5, and the other end of the main oil way is communicated with the reversing valve 8.
The two auxiliary oil paths are communicated with the reversing valve 8 and the main pressure slide valve 6 respectively, and are also communicated with a test hole formed in the electronic oil pump detection plate 1 or the mechanical oil pump detection plate 2 respectively.
A first end of the main pressure slide valve 6 is communicated with the main oil path, a second end of the main pressure slide valve is communicated with a first end of the main pressure electromagnetic valve, and a second end of the main pressure electromagnetic valve is communicated with the check valve 11;
the check valve 11 is communicated between the second end of the main pressure electromagnetic valve and the reversing valve 8;
the first pressure sensor 91 is communicated with one end, close to the accumulator 5, of the main oil way;
the second pressure sensor 92 communicates between the check valve 11 and the direction valve 8.
A relief valve 7 communicates between the main pressure spool 6 and the diverter valve 8.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (7)
1. A method for detecting the function of a double-pump clutch is characterized by comprising the following steps:
a change-over pressure detection and a change-over time detection of the change-over valve, wherein,
the reversing pressure is detected as follows:
starting the mechanical oil pump and the electronic oil pump;
adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s;
acquiring a reversing valve pressure value in a pressure time period of a main pressure regulating electromagnetic valve to obtain a pressure sudden change value, wherein the sudden change value is the reversing pressure value;
the commutation time is detected as:
starting the mechanical oil pump and the electronic oil pump;
adjusting the pressure of the main pressure electromagnetic valve within the range of 8-12 bar, wherein the change rate is 0.1 bar/s;
the method comprises the steps of obtaining a reversing valve pressure value in a pressure time interval of a main pressure regulating solenoid valve, obtaining a main pressure slide valve pressure value in the time interval, and respectively obtaining the time of the sudden change of the reversing valve pressure value and the time of the sudden change of the main pressure slide valve pressure value, wherein the time difference between the two is the reversing time.
2. The method for detecting a function of a twin-pump clutch as claimed in claim 1, further comprising: detecting the performance of the energy accumulator;
the accumulator performance detection is as follows:
measuring a first pressure value of a main oil way under the state that the energy accumulator is removed, and recording a first pressure fluctuation amplitude in unit time;
under the state of being connected with the energy accumulator, measuring a second pressure value of the main oil way, and recording a second pressure fluctuation amplitude in unit time;
the first pressure fluctuation amplitude and the second pressure fluctuation amplitude are compared.
3. The method for detecting a function of a twin-pump clutch as claimed in claim 1, further comprising: detecting the opening pressure of the check valve;
the check valve opening pressure is detected as follows:
detecting a third pressure of the main oil path;
detecting a fourth pressure between the reversing valve and the check valve;
a pressure differential of the third pressure and the fourth pressure is obtained.
4. The method for detecting a function of a twin-pump clutch as claimed in claim 1, further comprising: testing the oil supply amount of the electronic oil pump and the oil supply amount of the mechanical oil pump;
the oil supply quantity test of the electronic oil pump is as follows:
starting the electronic oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the electronic oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the electronic oil pump;
the oil supply quantity test of the mechanical oil pump is as follows:
and starting the mechanical oil pump, adjusting a main pressure solenoid valve, adjusting the pressure to be below 10bar, and acquiring the maximum output flow of the mechanical oil pump and the flow of an oil return oil way, wherein the maximum output flow and the flow of the oil return oil way are added to form the oil supply amount of the mechanical oil pump.
5. A double pump clutch function test apparatus for use in the test method of any one of claims 1 to 4, comprising:
the oil pump detection device comprises an electronic oil pump detection plate (1), a mechanical oil pump detection plate (2) and a partition plate (3); wherein,
the electronic oil pump detection plate (1) is provided with a first surface and a second surface, the first surface is a functional surface, the second surface is an oil way surface, and the electronic oil pump detection plate (1) is provided with an oil way for communicating the first surface with the second surface;
the mechanical oil pump detection plate (2) is provided with a third surface and a fourth surface, the third surface is a functional surface, the fourth surface is an oil way surface, and the mechanical oil pump detection plate (2) is provided with an oil way for communicating the third surface and the fourth surface;
the partition plate (3) is provided with an oil way, and the partition plate (3) is clamped between the second surface and the fourth surface to form a complete oil way;
wherein, be provided with on the first face: the electronic oil pump mounting surface is used for mounting an electronic oil pump; the main pressure electromagnetic valve (4), the energy accumulator (5), the first pressure sensor and the second pressure sensor;
the third surface is provided with: the mechanical oil pump mounting surface is used for mounting a mechanical oil pump; a main pressure slide valve (6) and a safety valve (7);
a one-way valve (11) and a reversing valve (8) are arranged on the electronic oil pump detection plate (1) or the mechanical oil pump detection plate (2).
6. The twin-pump clutch function detecting apparatus as recited in claim 5,
the mechanical oil pump mounting surface is provided with a mechanical oil pump connecting hole which is communicated with the complete oil circuit;
and the electronic oil pump mounting surface is provided with an electronic oil pump connecting hole which is communicated with the complete oil circuit.
7. The twin-pump clutch function detecting apparatus as recited in claim 5 or 6,
the complete oil path includes:
one end of the main oil way is communicated with the energy accumulator (5), and the other end of the main oil way is communicated with the reversing valve (8);
the two auxiliary oil paths are respectively communicated with a test hole which is formed on the electronic oil pump detection plate (1) or the mechanical oil pump detection plate (2);
the first end of the main pressure slide valve (6) is communicated with the main oil path, the second end of the main pressure slide valve is communicated with the first end of the main pressure electromagnetic valve, and the second end of the main pressure electromagnetic valve is communicated with the one-way valve (8); the one-way valve (11) is communicated between the second end of the main pressure electromagnetic valve and the reversing valve (8); the first pressure sensor is communicated with one end, close to the accumulator (5), of the main oil way; the second pressure sensor is communicated between the one-way valve (11) and the reversing valve (8).
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| CN113565747B (en) * | 2021-07-27 | 2023-03-28 | 哈尔滨东安汽车发动机制造有限公司 | Special electronic pump test device and test method for hybrid transmission |
| CN113834650A (en) * | 2021-09-22 | 2021-12-24 | 哈尔滨东安汽车发动机制造有限公司 | Speed changer valve body testing device special for hybrid motion and testing method |
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