CN103792081A - Magnetic valve high-temperature reliability testing device for shifting and method thereof - Google Patents
Magnetic valve high-temperature reliability testing device for shifting and method thereof Download PDFInfo
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- CN103792081A CN103792081A CN201410050224.3A CN201410050224A CN103792081A CN 103792081 A CN103792081 A CN 103792081A CN 201410050224 A CN201410050224 A CN 201410050224A CN 103792081 A CN103792081 A CN 103792081A
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Abstract
The invention belongs to the testing technology field and provides a magnetic valve high-temperature reliability testing device for shifting and a method of the magnetic valve high-temperature reliability testing device. The magnetic valve high-temperature reliability testing device for shifting and the method of the magnetic valve high-temperature reliability testing device are used for carrying out a reliability test for simulating shifting switching magnetic valves under multiple shifting working conditions and the high-temperature working environment. Based on a hydraulic performance test platform with the oil liquid temperature automatic control function, a pressure testing tool of the magnetic valve is designed; according to the shifting working conditions needing simulating, a test measuring and controlling unit is designed; according to the testing requirements, a high-precision current sensor and a high-temperature-resisting pressure sensor are selected and a test measuring and controlling unit and a signal collecting and processing unit are designed to construct a magnetic valve high-temperature reliability testing device for shifting. By combining with multiple shifting working condition simulation testing methods, practical severe working environments of the shifting magnetic valve are simulated realistically and the test on the high-temperature reliability of the shifting magnetic valve is achieved. The optimization and fault analyzing capacity of the shifting magnetic valve is perfected. The magnetic valve high-temperature reliability testing device for shifting and the method of the magnetic valve high-temperature reliability testing device are simple, practical and capable of ensuring that the testing device meets the high-temperature reliability test requirement of the shifting magnetic valve.
Description
Technical field
The invention belongs to reliability testing technical field under hot environment, be specifically related to a kind of gearshift solenoid valve high temperature reliability proving installation and method thereof, to realize the fail-test of the shift switch solenoid valve under the multiple gearshift operating mode of simulation, high-temperature work environment.
Background technology
Comprehensive transmission shift switch solenoid valve is the crucial pilot element that realizes gearshift function, along with controlled pressure and oil liquid temperature improve constantly, shift switch solenoid valve occurs that high-temperature electric magnetic force reduces so that cannot open reversing oil circuit, thereby cause the fault that gearshift was lost efficacy to occur, therefore need to test the reliability under the multiple gearshift operating mode of shift switch solenoid valve, high-temperature work environment in development.And current disclosed solenoid valve proving installation result of study, when different, there is the power of test of solenoid valve reliability under two kinds of test boundary conditions of simulation gearshift operating mode and high-temperature work environment, cannot carry out and the fail-test of shifting gears under solenoid valve real work condition.
In view of the foregoing, how to develop and a kind ofly can there is device and the method for testing thereof of under simulation gearshift operating mode and two kinds of test boundary conditions of high-temperature work environment, carrying out solenoid valve reliability testing simultaneously, to those skilled in the art, be the direction and goal in the urgent need to striving for very.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of gearshift solenoid valve high temperature reliability proving installation and method thereof, realizes the test of gearshift solenoid valve high temperature reliability, improve gearshift solenoid valve preferably with fault analysis ability.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of gearshift solenoid valve high temperature reliability proving installation, it is characterized in that: this device comprises hydraulic performance testing table, test fixture, tested solenoid valve, test measurement and control unit, signals collecting and processing unit, current sensor and pressure transducer, wherein hydraulic performance testing table comprises the fuel tank with heating function, surplus valve, oil pump, throttling valve and oil filter, described surplus valve outlet is connected with oil filter entrance, surplus valve entrance is connected with oil pump outlet, the entrance of oil filter is simultaneously connected with fuel tank oil-out, oil pump entrance is connected with the outlet of oil filter, throttling valve entrance is connected with oil pump outlet, throttling valve entrance is connected with fuel tank, described tested solenoid valve, pressure transducer and throttling valve are installed on test fixture, current sensor is connected by cable with tested solenoid valve, test measurement and control unit is connected with the electrical connector of tested solenoid valve by cable, signals collecting is connected by cable with current sensor, pressure transducer respectively with processing unit, and test measurement and control unit is connected by cable with signals collecting and processing unit.
Wherein, described measurement and control unit comprises microprocessor, host computer, RS232 communication module, extension storage module, power supply processing module and solenoid valve driving module, described microprocessor is used for testing TT&C system control program to be calculated and carries out, receive the collection marking signal of signals collecting and processing unit simultaneously, carry out to realize TT&C system single test process; Collection signal is transferred to host computer by RS232 module, shows pressure and the current signal of tested pilot solenoid valve process; Power supply processing module is realized the conversion of 24V supply voltage to microprocessor 5V supply voltage and pressure transducer 12V supply voltage; Solenoid valve driving module is used for driving tested solenoid valve.
A method of utilizing described gearshift solenoid valve high temperature reliability proving installation to test, is characterized in that: the method comprises the steps:
Step 1, i.e. S5, completion system powers on, for system works provides the required energy;
(3) beneficial effect
Compared with prior art, the present invention possesses following beneficial effect:
1, solenoid valve high temperature reliability proving installation and method thereof for gearshift provided by the invention, based on the hydraulic performance testing table with oil liquid temperature automatic control function, design solenoid valve pressure test frock, according to required simulation gearshift operating mode, design experiment measurement and control unit; According to testing requirement, choose high precision electric current transducer and high-temperature-resistance pressure sensor, design experiment measurement and control unit and signals collecting and processing unit, build gearshift solenoid valve high temperature reliability proving installation, in conjunction with multiple gearshift Work condition analogue test method, the severe working environment of simulation gearshift solenoid valve real vehicle more realistically, realizes the test of gearshift solenoid valve high temperature reliability, improve gearshift solenoid valve preferably with fault analysis ability.
2, solenoid valve high temperature reliability proving installation and method simple practical thereof for gearshift provided by the invention, can the satisfied gearshift of strong guarantee proving installation solenoid valve high temperature reliability can test, to be widely used in multiple electromagnet high temperature reliability performance automatic test.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of gearshift provided by the invention solenoid valve high temperature reliability proving installation;
Fig. 2 is hydraulic system principle figure in gearshift provided by the invention solenoid valve high temperature reliability proving installation;
Fig. 3 is gearshift provided by the invention solenoid valve high temperature reliability proving installation test measurement and control unit schematic diagram;
Fig. 4 is the process flow diagram of gearshift provided by the invention solenoid valve high temperature reliability method of testing;
Fig. 5 is solenoid valve fatique testing at elevated temperature Test input signal figure for gearshift;
Fig. 6 is the gearshift solenoid valve high temperature reliability Test input signal figure of simulation gearshift operating mode.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As illustrated in fig. 1 and 2, solenoid valve high temperature reliability proving installation for gearshift provided by the invention, this device comprises hydraulic performance testing table 1, test fixture 2, tested solenoid valve 3, test measurement and control unit 4, signals collecting and processing unit 5, current sensor 6 and pressure transducer 7, wherein hydraulic performance testing table 1 comprises the fuel tank 8 with heating function, surplus valve 9, oil pump 10, throttling valve 11 and oil filter 12, described surplus valve 9 outlets are connected with oil filter 12 entrances, surplus valve 9 entrances are connected with oil pump 10 outlets, the entrance of oil filter simultaneously 12 is connected with fuel tank 8 oil-outs, oil pump 10 entrances are connected with the outlet of oil filter 12, throttling valve 11 entrances are connected with oil pump 10 outlets, throttling valve 11 entrances are connected with fuel tank 8, described tested solenoid valve 3, pressure transducer 7 and throttling valve 11 are installed on test fixture 2, current sensor 6 is connected by cable with tested solenoid valve 3, test measurement and control unit 4 is connected with the electrical connector of tested solenoid valve 3 by cable, signals collecting is connected by cable with current sensor 6, pressure transducer 7 respectively with processing unit 5, and test measurement and control unit 4 is connected by cable with signals collecting and processing unit 5.
As shown in Figure 3, described measurement and control unit 4 comprises microprocessor 13, host computer 14, RS232 communication module 15, extension storage module 16, power supply processing module 17 and solenoid valve driving module 18, described microprocessor 13 calculates and carries out for testing TT&C system control program, receive the collection marking signal of signals collecting and processing unit 5 simultaneously, carry out to realize TT&C system single test process; Collection signal is transferred to host computer 14 by RS232 module 15, shows pressure and the current signal of tested solenoid valve 3 processs of the test; Power supply processing module 17 is realized the conversion of supply voltage (+24V) to microprocessor 13 supply voltages (+5V) and pressure transducer 7 supply voltages (+12V); Solenoid valve driving module 18 is for driving tested solenoid valve 3.
As shown in Figure 4, the method that the gearshift described in utilization provided by the invention is tested with solenoid valve high temperature reliability proving installation, the method comprises the steps:
Step 1, i.e. S5, completion system powers on, for system works provides the required energy;
As shown in Figure 5, for the input of gearshift solenoid valve fatigue at high temperature functional reliability test signal, in the present embodiment, getting 1s is 1 test cycle, wherein high level lasting time t1=0.5s, low duration t1=0.5s, single cyclic test is 1s, test number (TN) n=100000 time, and therefore test period is 28 hours.Wherein low level represents solenoid valve no power, in off position; High level represents solenoid valve energising, in running order.
As shown in Figure 6, be the gearshift solenoid valve high temperature reliability test signal input under simulation gearshift operating mode, in the present embodiment, according to real vehicle schedule, adopt two kinds of test gearshift circulations to carry out test, circulation I realizes gearshift solenoid valve at I shelves
iI shelves
iII shelves
iV shelves
v shelves
the rule simulation that upgrades and lower category of VI shelves, wherein, I shelves single test time T 1=1min, II shelves single test time T 2=1min, III shelves single test time T 3=2min, IV shelves single test time T 4=2min, V shelves single test time T 5=3min, VI shelves single test time T 6=3min; Circulation II realizes gearshift solenoid valve from N shelves
i shelves
n shelves
the schedule simulation of reverse gear.Wherein, N shelves single test time T 7=1min, I shelves single test time T 8=1min, N shelves single test time T 9=2min, reverse gear single test time T 10=2min; In order to simulate certain real vehicle milimeter number, upgrade cycle index n1=20 time of I shelves → VI shelves of circulation I, lower category cycle index n2=20 time of VI shelves → I shelves of circulation I; N shelves → I shelves → N shelves → reverse gear cycle index of circulation II n3=20 time, reverse gear → N shelves → I shelves → N shelves cycle index of circulation II n4=20 time; Simulate more really the solenoid valve hot operation fail-test of shifting gears in real vehicle gearshift driving process.
The course of work:
After test measurement and control unit 4 and signals collecting and processing unit 5 power on, system starts self check and program initialization, user is according to expecting to use which kind of test operating mode to carry out test to gearshift electricity consumption magnet valve high temperature reliability, on host computer 14, manually select test pattern, user inputs test parameters on host computer 14, mainly comprises the gearshift solenoid valve fatigue at high temperature performance test parameters such as high level lasting time t1, low duration t2 and test number (TN) n, and comprise the I shelves single test time T 1 of circulation I, II shelves single test time T 2, III shelves single test time T 3, IV shelves single test time T 4, V shelves single test time T 5, VI shelves single test time T 6, the N shelves single test time T 7 of circulation II, I shelves single test time T 8, N shelves single test time T 9, reverse gear single test time T 10, I shelves → VI shelves of circulation I cycle index n1 that upgrades, VI shelves → I shelves of circulation I cycle index n2 that lowers category, gearshift solenoid valve high temperature reliability test parameters under the simulation such as reverse gear → N shelves → I shelves → N shelves cycle index n4 of N shelves → I shelves → N shelves → reverse gear cycle index n3 of circulation II and circulation II gearshift operating mode.Test parameters transfers to microprocessor 13, exports solenoid valve driving module 18 to, according to presumptive test mode activated solenoid valve through calculating.Signals collecting and processing unit 5 be tested solenoid valve 3 top hole pressures and driving current signal collection processing, and be stored in signals collecting and processing unit 5.Tested the test that backward test measurement and control unit 4 sends and completed marking signal, characterization test completes, and user can carry out the analysis of solenoid valve high temperature reliability performance test to test findings data in host computer 17.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (3)
1. a solenoid valve high temperature reliability proving installation for gearshift, it is characterized in that: this device comprises hydraulic performance testing table (1), test fixture (2), tested solenoid valve (3), test measurement and control unit (4), signals collecting and processing unit (5), current sensor (6) and pressure transducer (7), wherein hydraulic performance testing table (1) comprises the fuel tank (8) with heating function, surplus valve (9), oil pump (10), throttling valve (11) and oil filter (12), described surplus valve (9) outlet is connected with oil filter (12) entrance, surplus valve (9) entrance is connected with oil pump (10) outlet, the entrance of oil filter (12) is connected with fuel tank (8) oil-out simultaneously, oil pump (10) entrance is connected with the outlet of oil filter (12), throttling valve (11) entrance is connected with oil pump (10) outlet, throttling valve (11) entrance is connected with fuel tank (8), described tested solenoid valve (3), pressure transducer (7) and throttling valve (11) are installed on test fixture (2), current sensor (6) is connected by cable with tested solenoid valve (3), test measurement and control unit (4) is connected with the electrical connector of tested solenoid valve (3) by cable, signals collecting is connected by cable with current sensor (6), pressure transducer (7) respectively with processing unit (5), and test measurement and control unit (4) is connected by cable with signals collecting and processing unit (5).
2. solenoid valve high temperature reliability proving installation for gearshift according to claim 1, it is characterized in that: described measurement and control unit (4) comprises microprocessor (13), host computer (14), RS232 communication module (15), extension storage module (16), power supply processing module (17) and solenoid valve driving module (18), described microprocessor (13) calculates and carries out for testing TT&C system control program, receive the collection marking signal of signals collecting and processing unit (5) simultaneously, carry out to realize TT&C system single test process; Collection signal is transferred to host computer (14) by RS232 module (15), shows pressure and the current signal of tested solenoid valve (3) process of the test; Power supply processing module (17) is realized the conversion of 24V supply voltage to microprocessor (13) 5V supply voltage and pressure transducer (7) 12V supply voltage; Solenoid valve driving module (18) is for driving tested solenoid valve (3).
3. a method of utilizing the gearshift solenoid valve high temperature reliability proving installation described in claim 1 to test, is characterized in that: the method comprises the steps:
Step 1, i.e. S5, completion system powers on, for system works provides the required energy;
Step 2, i.e. S10, carries out System self-test and program initialization by initialization extended memory (16) and RS232 communication module (15), for preparing with host computer (14) communication;
Step 3, i.e. S15, user's input testing mode; User, at the upper test pattern of manually selecting of host computer (14), carries out test according to which kind of test operating mode to gearshift electricity consumption magnet valve high temperature reliability;
Step 4, be S20, two kinds of test operating modes that this method relates to comprise test pattern I and test pattern II, and wherein said test pattern I is the test of gearshift solenoid valve fatigue at high temperature functional reliability, and test pattern II is the gearshift solenoid valve high temperature reliability test under simulation gearshift operating mode;
Step 5, i.e. S25, user arranges test parameters; Mainly comprise the gearshift solenoid valve high temperature reliability test parameters under gearshift solenoid valve fatigue at high temperature performance test parameter and simulation gearshift operating mode;
Step 6, i.e. S30, output drive signal; By RS232 communication module (15), user is transferred to microprocessor (13) in the test parameters of host computer (14) input, export solenoid valve driving module (18) to through calculating, be sent to tested solenoid valve (3) by cable;
Step 7, i.e. S35, for judging whether test process completes; The test of sending by signals collecting and processing unit (5) completes marking signal and is judged, if tested, finishes test; If do not complete test, return to step S15 and proceed test;
Step 8, i.e. S40, test finishes, and carries out test findings data analysis.
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| CN201410050224.3A CN103792081B (en) | 2014-02-13 | 2014-02-13 | One kind gearshift magnetic valve high temperature reliability test device and its method |
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| CN201410050224.3A CN103792081B (en) | 2014-02-13 | 2014-02-13 | One kind gearshift magnetic valve high temperature reliability test device and its method |
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| CN109580220A (en) * | 2018-12-05 | 2019-04-05 | 陕西法士特齿轮有限责任公司 | The pneumatic AMT executing agency fatigue property test system of two axis of one kind and test method |
| CN110058095A (en) * | 2019-03-12 | 2019-07-26 | 中国农业大学 | Simulate the irrigation magnetic valve performance test macro and method of multi-water resources irrigation conditions |
| CN110108476A (en) * | 2018-01-30 | 2019-08-09 | 广州汽车集团股份有限公司 | Electromagnetic Valve for Automatic Transmission acts durability test method, device and computer equipment |
| CN113804432A (en) * | 2021-09-22 | 2021-12-17 | 哈尔滨东安汽车发动机制造有限公司 | Endurance test device and method for automatic transmission valve body switch valve |
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