CN110749438A - Performance detection device and detection method for ESC linear booster valve - Google Patents
Performance detection device and detection method for ESC linear booster valve Download PDFInfo
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- CN110749438A CN110749438A CN201911182009.8A CN201911182009A CN110749438A CN 110749438 A CN110749438 A CN 110749438A CN 201911182009 A CN201911182009 A CN 201911182009A CN 110749438 A CN110749438 A CN 110749438A
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000003584 silencer Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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
- G01M13/003—Machine valves
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Abstract
The invention discloses a performance detection device and a detection method of an ESC linear booster valve, which comprises a bracket for placing the ESC linear booster valve, wherein the bracket is provided with a positioning mechanism for positioning the ESC linear booster valve, and the positioning mechanism is provided with a gas path channel communicated with a valve body of the ESC linear booster valve; the loading mechanism is used for adjusting the opening of the ESC linear booster valve; and the testing gas circuit is used for connecting the gas circuit channel and realizes the detection of the performance of the ESC linear booster valve by monitoring the gas flow passing through the ESC linear booster valve. The detection device can be used for detecting the performance of the ESC linear booster valve, thereby being beneficial to improving the product quality. The invention has simple structure, convenient operation and convenient popularization and application.
Description
Technical Field
The invention relates to the technical field of automatic detection, in particular to a performance detection device and a detection method of an ESC linear booster valve, which are applicable to performance detection of product parts of an electronic stability control system.
Background
An Electronic stability control system (ESC) is a key technology for active safety of automobiles. At present, the active safety system is developed by key technologies such as ABS, TCS and ESC, wherein ABS has an anti-lock function for wheels, TCS has an anti-skid function for wheels, and ESC includes all performances of ABS and TCS. The linear pressure increasing valve of the ESC is a control element in the ESC, and realizes stable pressure and quick backflow by controlling stable pressure in the braking process of a vehicle. The linear pressure increasing valve of the ESC is an indispensable part of an ESC system and a core component of the ESC system, and the performance of the linear pressure increasing valve has an extremely important influence on the braking performance of the ESC. At present, the main brake system manufacturers in China are still in the stage of part production and technical exploration. Aiming at the design process of the ESC linear booster valve, it is particularly important to design a high-precision testing device and a detection method.
Disclosure of Invention
The invention aims to provide a performance detection device and a performance detection method for an ESC linear booster valve.
In order to achieve the purpose, the technical scheme of the invention is as follows: the performance detection device of the ESC linear booster valve comprises a support for placing the ESC linear booster valve, wherein the support is provided with a plurality of slots
The positioning mechanism is used for positioning the ESC linear booster valve and is provided with a gas path channel communicated with a valve body of the ESC linear booster valve;
the loading mechanism is used for adjusting the opening of the ESC linear booster valve;
and the testing gas circuit is used for connecting the gas circuit channel and realizes the detection of the performance of the ESC linear booster valve by monitoring the gas flow passing through the ESC linear booster valve.
Furthermore, positioning mechanism includes the solenoid valve mount pad, and the solenoid valve mount pad up end is equipped with the location the last tube cavity of the linear pressure boost valve of ESC still is equipped with air inlet and gas outlet on the solenoid valve mount pad, and when the linear pressure boost valve of ESC was located last tube cavity, its air inlet end and air inlet intercommunication, the end of giving vent to anger communicates with the gas outlet.
Furthermore, a sealing rubber ring is arranged at the upper opening of the upper pipe cavity to realize the sealing between the upper pipe cavity and the ESC linear booster valve.
Furthermore, the loading mechanism is arranged above the positioning mechanism and comprises an air cylinder, a lower pressing block is arranged at the tail end of a telescopic rod of the air cylinder, a lower pipe cavity corresponding to the upper pipe cavity is arranged on the lower end face of the lower pressing block, a coil and a fixing seat for supporting the coil are arranged in the lower pipe cavity, and when the telescopic rod is controlled by the air cylinder to move downwards, the fixing seat tightly presses the ESC linear booster valve so as to prevent the ESC linear booster valve from rotating; the outer wall of the lower pipe cavity is provided with a PWM pulse signal input end connected with a coil, the PWM pulse signal input end can enable the coil connected with the PWM pulse signal input end to form a magnetic field through inputting a PWM signal, a moving body of the ESC linear booster valve is driven to drive a push rod to rotate, the opening degree of the ESC linear booster valve is adjusted, and the opening degree of the ESC linear booster valve in a normal state is 100%; the side wall of the lower tube cavity is also provided with heat dissipation holes.
Furthermore, the side wall of the lower pipe cavity is provided with a through hole, and a silencer is arranged in the through hole and used for reducing the sound generated when the testing gas circuit detects the ESC linear booster valve.
Furthermore, the telescopic link and the lower pressing block are provided with a lower pressing platform, the upper end face of the lower pressing platform is fixed at the tail end of the telescopic link through a connecting block, the lower pressing block is fixed at the lower end face of the lower pressing platform, guide rods are arranged on two sides of the lower pressing platform, a sliding bearing is sleeved outside the guide rods and fixed on the support, and the moving direction of the lower pressing block is limited.
Furthermore, the test gas circuit includes air supply and flow sensor, and the output of air supply is connected with the duplicate, the output of duplicate with gas circuit passageway one end is connected, and accessible air supply lets in the air current to gas circuit passageway, and flow sensor's input is connected with the other end of gas circuit passageway, and the gas flow of real-time supervision ESC linear booster valve.
A performance detection method of an ESC linear booster valve comprises the following steps:
step 1, installing an ESC linear booster valve in a normal state in an upper pipe cavity, and enabling an air inlet end of the ESC linear booster valve to be communicated with an air inlet and an air outlet end of the ESC linear booster valve to be communicated with an air outlet;
step 2, controlling the telescopic rod to move downwards through the air cylinder, and enabling the fixed seat to tightly press the ESC linear booster valve;
step 3, opening an air source, enabling the air flow to pass through an air inlet, an ESC linear booster valve, an air outlet and a flow sensor, and recording the flow displayed by the flow sensor after the air flow is stable;
step 4, inputting a PWM signal with rated voltage of 12V and a period of 0.2ms to a PWM pulse signal input end, driving a moving body of the ESC linear booster valve to drive a push rod to rotate slowly by utilizing a magnetic field generated by a coil, so that the opening of the ESC linear booster valve is reduced slowly, recording real-time data of a flow sensor, and taking a node when the recorded data is reduced obviously as an initial point of the ESC linear booster valve;
step 6, comparing the flow recorded in the step 5 with a standard value to obtain the performance of the ESC linear booster valve;
and 7, controlling the PWM signal, setting the opening of the ESC linear booster valve to be 0, and obtaining the detected flow, namely the airtight leakage value of the ESC linear booster valve.
The invention has the beneficial effects that: the detection device can be used for detecting the performance of the ESC linear booster valve, thereby being beneficial to improving the product quality. The invention has simple structure, convenient operation and convenient popularization and application.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a positioning mechanism of the present invention;
FIG. 3 is a cross-sectional view of the positioning mechanism of the present invention;
FIG. 4 is a schematic structural diagram of a lower briquette of the present invention;
FIG. 5 is a cross-sectional view of a lower compact of the present invention;
FIG. 6 is a schematic structural diagram of a detection gas circuit according to the present invention;
FIG. 7 is a schematic diagram of a linear pressurization valve of the ESC;
in the figure, 1, a positioning mechanism; 2. a loading mechanism; 3. detecting a gas circuit; 4. a support; 11. a solenoid valve mounting seat; 12. an upper lumen; 13. an air inlet; 14. an air outlet; 15. sealing the rubber ring; 21. a cylinder; 22. a telescopic rod; 23. pressing the block; 24. a lower lumen; 25. a coil; 26. a fixed seat; 27. a PWM pulse signal input terminal; 28. a muffler; 29. heat dissipation holes; 201. pressing the platform; 202. connecting blocks; 203. a guide bar; 204. a sliding bearing; 31. a gas source; 32. a flow sensor; 33. a two-part member; 51. a moving body; 52. a push rod; 53. a spring; 54 an air inlet end; 55. and an air outlet end.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The ESC linear pressurization valve 5 shown in fig. 7 comprises 51, a mover; 52. a push rod; 53. a spring; 54 an air inlet end; 55. and an air outlet end. The invention provides a performance detection device of an ESC linear booster valve, which comprises a bracket 4 for placing the ESC linear booster valve, wherein the bracket 4 is provided with a plurality of slots, and the slots are arranged on the bracket 4
The positioning mechanism 1 is used for positioning the ESC linear booster valve, and an air channel communicated with a valve body of the ESC linear booster valve is arranged on the positioning mechanism 1;
the loading mechanism 2 is used for adjusting the opening degree of the ESC linear booster valve;
and the testing gas circuit is used for connecting the gas circuit channel and realizes the detection of the performance of the ESC linear booster valve by monitoring the gas flow passing through the ESC linear booster valve.
As shown in fig. 2, 3 and 7, the positioning mechanism 1 includes a solenoid valve mounting seat 11, an upper pipe cavity 12 for positioning the ESC linear booster valve is disposed on an upper end surface of the solenoid valve mounting seat 11, the solenoid valve mounting seat 11 is further provided with an air inlet 13 and an air outlet 14, when the ESC linear booster valve is positioned in the upper pipe cavity 12, the air inlet end of the ESC linear booster valve is communicated with the air inlet 13, and the air outlet end of the ESC linear booster valve is communicated with the air outlet 14.
And a sealing rubber ring 15 is arranged at the upper opening of the upper pipe cavity 12 so as to realize the sealing between the upper pipe cavity 12 and the ESC linear booster valve.
As shown in fig. 1, 4, 5, and 7, the loading mechanism 2 is disposed above the positioning mechanism 1, and includes a cylinder 21, a lower pressing block 23 is disposed at a tail end of an expansion link 22 of the cylinder 21, a lower pipe cavity 24 corresponding to the upper pipe cavity 12 is disposed on a lower end surface of the lower pressing block 23, a coil 25 and a fixing seat 26 supporting the coil 25 are disposed in the lower pipe cavity 24, and when the cylinder 21 controls the expansion link 22 to move downward, the fixing seat 26 compresses the ESC linear pressure increasing valve to prevent the ESC linear pressure increasing valve from rotating; the outer wall of the lower tube cavity 24 is provided with a PWM pulse signal input end 27 connected with the coil 25, the PWM pulse signal input end 27 can enable the coil 25 connected with the PWM pulse signal input end to form a magnetic field through inputting the PWM signal, so that a mover 51 of the ESC linear booster valve drives a push rod 52 to rotate, the opening degree of the ESC linear booster valve is adjusted, and the opening degree of the ESC linear booster valve in a normal state is 100%; the side wall of the lower cavity is also provided with a heat dissipation hole 29.
The side wall of the lower tube cavity 24 is provided with a through hole, and a silencer 28 is arranged in the through hole and used for reducing sound generated when the testing gas circuit detects the ESC linear booster valve.
The telescopic link 22 and the lower pressing block 23 are provided with a lower pressing platform 201, the upper end face of the lower pressing platform 201 is fixed at the tail end of the telescopic link 22 through a connecting block 202, the lower pressing block 23 is fixed at the lower end face of the lower pressing platform 201, the two sides of the lower pressing platform 201 are provided with guide rods 203, the guide rods 203 are sleeved with sliding bearings 204, the sliding bearings 204 are fixed on the support 4, the moving direction of the lower pressing block 23 is limited, and the damage of an ESC linear booster valve caused by device faults is avoided.
As shown in fig. 3, 6, and 7, the testing gas circuit includes a gas source 31 and a flow sensor 32, an output end of the gas source 31 is connected to a duplex piece 33, an output end of the duplex piece 33 is connected to one end of the gas circuit channel, and the gas flow can be introduced into the gas flow channel through the gas source 31, an input end of the flow sensor 32 is connected to the other end of the gas circuit channel, so as to monitor the gas flow of the ESC linear booster valve in real time.
The detection device can be used for detecting the performance of the ESC linear booster valve, and the detection method comprises the following steps:
step 1, installing an ESC linear booster valve in a normal state in an upper tube cavity 12, and enabling an air inlet end of the ESC linear booster valve to be communicated with an air inlet 13 and an air outlet end of the ESC linear booster valve to be communicated with an air outlet 14;
step 2, controlling the telescopic rod 22 to move downwards through the air cylinder 21, and enabling the fixed seat 26 to tightly press the ESC linear booster valve;
step 3, opening the air source 31, enabling the air flow to pass through the air inlet 13, the ESC linear booster valve, the air outlet 14 and the flow sensor 32, and recording the flow displayed by the flow sensor 32 after the air flow is stable;
step 4, inputting a PWM signal with rated voltage of 12V and period of 0.2ms to a PWM pulse signal input end 27, driving a movable body 51 of the ESC linear booster valve to drive a push rod 52 to rotate slowly by utilizing a magnetic field generated by a coil 25, slowly reducing the opening of the ESC linear booster valve, recording real-time data of a flow sensor 32, and taking a node when the recorded data is obviously reduced as an initial point of the ESC linear booster valve;
step 6, comparing the flow recorded in the step 5 with a standard value to obtain the performance of the ESC linear booster valve;
and 7, controlling the PWM signal, setting the opening of the ESC linear booster valve to be 0, and obtaining the detected flow, namely the airtight leakage value of the ESC linear booster valve.
Therefore, the detection device can improve the product quality, and is convenient to popularize and apply due to simple structure and convenient operation.
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
Claims (8)
1. The performance detection device of the ESC linear booster valve is characterized by comprising a support for placing the ESC linear booster valve, wherein the support is provided with a plurality of slots
The positioning mechanism is used for positioning the ESC linear booster valve and is provided with a gas path channel communicated with a valve body of the ESC linear booster valve;
the loading mechanism is used for adjusting the opening of the ESC linear booster valve;
and the testing gas circuit is used for connecting the gas circuit channel and realizes the detection of the performance of the ESC linear booster valve by monitoring the gas flow passing through the ESC linear booster valve.
2. The device for detecting the performance of the ESC linear booster valve as claimed in claim 1, wherein the positioning mechanism comprises a solenoid valve mounting seat, an upper pipe cavity for positioning the ESC linear booster valve is arranged on an upper end surface of the solenoid valve mounting seat, the solenoid valve mounting seat is further provided with an air inlet and an air outlet, when the ESC linear booster valve is positioned in the upper pipe cavity, the air inlet end of the ESC linear booster valve is communicated with the air inlet, and the air outlet end of the ESC linear booster valve is communicated with the air outlet.
3. The device for detecting the performance of the ESC linear booster valve as claimed in claim 2, wherein the upper opening of the upper tube cavity is provided with a sealing rubber ring to realize the sealing between the upper tube cavity and the ESC linear booster valve.
4. The device for detecting the performance of the ESC linear booster valve as claimed in claim 1, wherein the loading mechanism is arranged above the positioning mechanism and comprises a cylinder, a lower pressing block is arranged at the end of a telescopic rod of the cylinder, a lower pipe cavity corresponding to the upper pipe cavity is arranged on the lower end surface of the lower pressing block, a coil and a fixing seat for supporting the coil are arranged in the lower pipe cavity, and when the cylinder controls the telescopic rod to move downwards, the fixing seat presses the ESC linear booster valve to prevent the ESC linear booster valve from rotating; the outer wall of the lower pipe cavity is provided with a PWM pulse signal input end connected with a coil, the PWM pulse signal input end can enable the coil connected with the PWM pulse signal input end to form a magnetic field through inputting a PWM signal, a moving body of the ESC linear booster valve is driven to drive a push rod to rotate, the opening degree of the ESC linear booster valve is adjusted, and the opening degree of the ESC linear booster valve in a normal state is 100%; the side wall of the lower tube cavity is also provided with heat dissipation holes.
5. The device for detecting the performance of the ESC linear booster valve as claimed in claim 4, wherein the side wall of the lower tube cavity is provided with a through hole, and a silencer is arranged in the through hole for reducing the sound generated when the test gas circuit detects the ESC linear booster valve.
6. The device for detecting the performance of the ESC linear booster valve as claimed in claim 4, wherein a lower pressing platform is provided between the telescopic rod and the lower pressing block, an upper end surface of the lower pressing platform is fixed at the end of the telescopic rod through a connecting block, the lower pressing block is fixed at a lower end surface of the lower pressing platform, guide rods are provided at both sides of the lower pressing platform, sliding bearings are provided outside the guide rods, and the sliding bearings are fixed on the support to limit the moving direction of the lower pressing block.
7. The performance detection device of the ESC linear booster valve as claimed in claim 1, wherein the testing gas circuit comprises a gas source and a flow sensor, the output end of the gas source is connected with a duplex piece, the output end of the duplex piece is connected with one end of the gas circuit channel, the gas flow can be introduced into the gas circuit channel through the gas source, the input end of the flow sensor is connected with the other end of the gas circuit channel, and the gas flow of the ESC linear booster valve is monitored in real time.
8. A performance detection method of an ESC linear booster valve is characterized by comprising the following steps:
step 1, installing an ESC linear booster valve in a normal state in an upper pipe cavity, and enabling an air inlet end of the ESC linear booster valve to be communicated with an air inlet and an air outlet end of the ESC linear booster valve to be communicated with an air outlet;
step 2, controlling the telescopic rod to move downwards through the air cylinder, and enabling the fixed seat to tightly press the ESC linear booster valve;
step 3, opening an air source, enabling the air flow to pass through an air inlet, an ESC linear booster valve, an air outlet and a flow sensor, and recording the flow displayed by the flow sensor after the air flow is stable;
step 4, inputting a PWM signal with rated voltage of 12V and a period of 0.2ms to a PWM pulse signal input end, driving a moving body of the ESC linear booster valve to drive a push rod to rotate slowly by utilizing a magnetic field generated by a coil, so that the opening of the ESC linear booster valve is reduced slowly, recording real-time data of a flow sensor, and taking a node when the recorded data is reduced obviously as an initial point of the ESC linear booster valve;
step 5, controlling PWM signals, respectively setting the opening degrees of the ESC linear booster valve to 70%, 60%, 50% and 40%, and respectively recording the flow displayed by the flow sensor under the corresponding opening degrees after the airflow is stabilized;
step 6, comparing the flow recorded in the step 5 with a standard value to obtain the performance of the ESC linear booster valve;
and 7, controlling the PWM signal, setting the opening of the ESC linear booster valve to be 0, and obtaining the detected flow, namely the airtight leakage value of the ESC linear booster valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182009.8A CN110749438B (en) | 2019-11-27 | 2019-11-27 | Performance detection device and detection method for ESC linear booster valve |
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| CN201911182009.8A CN110749438B (en) | 2019-11-27 | 2019-11-27 | Performance detection device and detection method for ESC linear booster valve |
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| CN110749438A true CN110749438A (en) | 2020-02-04 |
| CN110749438B CN110749438B (en) | 2024-06-14 |
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| CN110749438B (en) | 2024-06-14 |
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