CN102539137A - Detector and detection method for electromagnetic valve of automobile automatic transmission - Google Patents
Detector and detection method for electromagnetic valve of automobile automatic transmission Download PDFInfo
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- CN102539137A CN102539137A CN2012100108765A CN201210010876A CN102539137A CN 102539137 A CN102539137 A CN 102539137A CN 2012100108765 A CN2012100108765 A CN 2012100108765A CN 201210010876 A CN201210010876 A CN 201210010876A CN 102539137 A CN102539137 A CN 102539137A
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Abstract
The invention relates to the technical field of automobile maintenance and detection equipment, in particular to a detector and a detection method for an electromagnetic valve of an automobile automatic transmission. The detector is characterized in that: an oil tank is fixed at the bottom of a chassis; the lower part of the right side of the oil tank is provided with an oil temperature heater; a pipeline connecting oil return chamber is formed at the center position of the upper part of the oil tank; the upper part of the oil return chamber is provided with an oil path transition plate; the upper part of the oil path transition plate is provided with an electromagnetic valve adapting base; the upper part of the electromagnetic valve adapting base is provided with an electromagnetic valve to be detected; the bottom of the electromagnetic valve to be detected is provided with a pipeline which is connected with a pressure sensor by passing through the oil path transition plate; one end of a pipeline tap at the bottom of the electromagnetic valve to be detected is connected with an oil pressure regulating valve; the lower part of the oil pressure regulating valve is connected with the output end of an oil pump; the input end of the oil pump is connected with the input end of a safety valve on the oil tank; the electromagnetic valve to be detected is provided with a PWM (Pulse-Width Modulation) power amplifying circuit B; the oil pressure regulating valve is provided with a PWM power amplifying circuit A; the heater is provided with a relay; and the oil pump is provided with a frequency converter. A power chip has the functions of short circuiting, overcurrent thermal protection and the like.
Description
[technical field]
The present invention relates to auto repair checkout equipment technical field, be specifically related to a kind of automatic gearbox solenoid valve checkout equipment and detection method thereof.
[background technology]
Present automatic transmission has developed into the epoch that six speed are popularized; Most new type auto shifting of transmission controls all are to come direct solenoidoperated cluthes work through solenoid valve; Often cause shifting of transmission to impact even skid after wearing and tearing appears in solenoid valve and burn automatic transmission; But because the characteristics that electromagnetic valve structure is complicated, precision can not overhaul; The detection of magnetic valve performance becomes blind area and the difficult point in the automatic transmission maintenance, through looking into new domestic needleless still at present to the pick-up unit of automatic transmission solenoid valve.
[summary of the invention]
The object of the invention is for overcoming the prior art defective, provide a kind of can be to the electric property of each model automatic transmission solenoid valve, automatic gearbox solenoid valve detector and the detection method thereof that mechanical property is carried out comprehensive detection.
To achieve these goals, design a kind of automatic gearbox solenoid valve detector, comprise cabinet, motor, oil pump, fuel tank, oil heater, pressure adjusting solenoid valve, frequency converter, relay, PWM power amplifier, PC; It is characterized in that fuel tank is fixed on the cabinet bottom; The fuel tank lower right side is provided with oil heater, and fuel tank center upper portion position is provided with pipeline and connects oil revolute chamber, and oil revolute chamber top is provided with the oil circuit rebound; Oil circuit rebound top is provided with the solenoid valve adapted seat; Solenoid valve adapted seat top is provided with solenoid valve to be measured, and solenoid valve base to be measured is provided with pipeline and passes oil circuit rebound connection pressure transducer, and solenoid valve base pipeline to be measured tap one end connects oil pressure adjusting valve; The oil pressure adjusting valve bottom connects the output terminal of oil pump; The input end of oil pump connects the input end of the safety valve on the fuel tank, and solenoid valve to be measured is provided with PWM power amplifier B, and solenoid valve to be measured connects PWM power amplifier B; Oil pressure adjusting valve connects PWM power amplifier A; Well heater is provided with relay, and oil pump connects frequency converter, and the signal end of described PWM power amplifier B, power amplifier A, relay, frequency converter connects the signal output part of PC industrial computer through I/O interface board, DO/AO output; The signal input part of PC industrial computer is provided with the DI/AI input mode, and the I/O interface board of described DI/AI is provided with pressure unit, temperature transmitter, electromagnetic valve current, stream and puts transmitter.
Pressure unit is provided with system pressure and detected pressures value.
Temperature transmitter is provided with oily temperature control value.
Flow transmitter is provided with flowmeter.
The solenoid valve adaptation board is replaceable according to the different model solenoid valve.
The every passage dutycycle of PWM solenoid control passage 0-100 million, frequency 0-2000Hz.
Working current, control voltage, the oil temperature signal of computing machine through gathering solenoid valve; Indirect calculation goes out the resistance of solenoid valve under the different temperatures; Then computing machine through with the different temperatures that has stored under resistance standard value comparison, judge that solenoid valve exists open circuit or short circuit, has realized the detection to the solenoid valve electric property; When pressure adjusting solenoid valve produces required constant system pressure; Industrial computer is supplied with solenoid valve Different control dutycycle to be measured chronologically, and simultaneous computer is gathered the output pressure of solenoid valve to be measured through pressure unit, and computing machine compares measured value and the standard value of having stored then; Judge that solenoid valve output pressure under the control of different temperatures, dutycycle judges solenoid valve different mechanical locations under different temperatures afterwards and whether have operation irregularity whether in the predetermined tolerance scope.
The present invention compared with prior art; The automatic gearbox solenoid valve detector has hydraulic oil heated at constant temperature control function; Can test the different performance parameter of solenoid valve under normal temperature and high temperature; Owing to have the constant temperature function, can guarantee the constant relatively accuracy of guaranteeing test of hydraulic oil viscosity in addition; The present invention has the oil pressure of Linear Control and regulates solenoid valve, can conveniently realize the adjustment and the constant voltage control of system oil pressure; The automatic gearbox solenoid valve detector is the universal type machines, can detect various model solenoid valves, when the solenoid valve of test different model, only need change mutually deserved solenoid valve adaptation board and can realize mechanical connection; The automatic gearbox solenoid valve detector has triple channel PWM solenoid control passage, and every passage dutycycle 0-100 is adjustable, and frequency 0-2000Hz is adjustable; Power chip has functions such as short circuit, the protection of excess current heat, adopts current sampling circuit simultaneously, makes the electric control of solenoid valve form FEEDBACK CONTROL through current sample.
[description of drawings]
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a control system principle flow chart of the present invention.
Among the figure: 1 is cabinet, and 2 is oil pump, and 3 is fuel tank, and 4 is oil heater, and 5 is frequency converter, and 6 is relay; 7 is the PC industrial computer, and 8 is oil revolute chamber, and 9 is the oil circuit rebound, and 10 is the solenoid valve adapted seat, and 11 is solenoid valve to be measured; 12 is pressure transducer, and 13 is oil pressure adjusting valve, and 14 is safety valve, and 15 is PWM power amplifier B, and 16 is PWM power amplifier A; 17 is I/O interface board (DO/AO output), and 18 is that I/O interface board (DI/AI input) pressure becomes device, and 19 is temperature transmitter, and 20 is electromagnetic valve current, and 21 is that stream is put transmitter; 22 is pressure unit, and 23 is system pressure, and 24 is detected pressures, and 25 is oily temperature control value, and 26 is flowmeter.
Appointment Fig. 1 is a Figure of abstract.
[embodiment]
Below in conjunction with accompanying drawing the invention is explained further details, this manufacturing technology is clearly to this professional personage.
As shown in Figure 1, the automatic gearbox solenoid valve detector is made up of cabinet, motor, oil pump, fuel tank, oil heater, return tray, pressure adjusting solenoid valve, frequency converter, relay, PWM power amplifier, PC; Fuel tank is fixed on the cabinet bottom, and the fuel tank lower right side is equipped with oil heater, and fuel tank center upper portion position is equipped with pipeline and is connected oil revolute chamber; The oil circuit rebound is installed on oil revolute chamber top again; The solenoid valve adapted seat is equipped with on oil circuit rebound top, and solenoid valve to be measured is equipped with on solenoid valve adapted seat top, and solenoid valve base to be measured has pipeline to pass oil circuit rebound connection pressure transducer; Solenoid valve base pipeline to be measured tap one end connects oil pressure adjusting valve; The oil pressure adjusting valve bottom connects the output terminal of oil pump, and the input end of oil pump connects the input end of the safety valve on the fuel tank, and solenoid valve to be measured is provided with PWM power amplifier B; PWM power amplifier A is arranged on the oil pressure adjusting valve; Relay is housed on the well heater, frequency converter is installed on oil pump, the signal end of PWM power amplifier B, power amplifier A, relay, frequency converter connects the signal output part of PC industrial computer through I/O interface board, DO/AO output; The signal input part of PC industrial computer is provided with the DI/AI input mode, and the I/O interface board of DI/AI is provided with pressure unit, temperature transmitter, electromagnetic valve current, stream and puts transmitter.System pressure and detected pressures value are installed on the pressure unit.Oily temperature control value is housed on the temperature transmitter.Flow transmitter is provided with flowmeter.The solenoid valve adaptation board is replaceable according to the different model solenoid valve.The every passage dutycycle of PWM solenoid control passage 0-100 million, frequency 0-2000Hz.
The automatic gearbox solenoid valve detector can be tested the different performance parameter of solenoid valve under normal temperature and high temperature, also can test the solenoid valve of different model, and only needing to change mutually deserved solenoid valve adaptation board can realize.The automatic gearbox solenoid valve detector is equipped with the oil pressure adjusting solenoid valve of Linear Control, can conveniently realize the adjustment and the constant voltage control of system oil pressure, and power chip, has functions such as short circuit, the protection of excess current heat.Adopt current sampling circuit simultaneously, make the electric control of solenoid valve form FEEDBACK CONTROL through current sample.
As shown in Figure 2; Working current, control voltage, the oil temperature signal of industrial computer through gathering solenoid valve; Indirect calculation goes out the resistance of solenoid valve under the different temperatures; Then computing machine through with the different temperatures of having stored under resistance standard value comparison, judge whether solenoid valve exists to open a way or short circuit, realized detection to the solenoid valve electric property.
The detection principle of solenoid valve mechanical property does among the present invention; Because the output pressure of solenoid valve and the mechanical location of valve core of the electromagnetic valve have constant corresponding relation under system pressure is constant; The mechanical location of valve core of the electromagnetic valve has constant corresponding relation with the Control current of solenoid valve again, and promptly our corresponding relation of output pressure that only needs Control current and the solenoid valve of research solenoid valve is whether the mechanical property of decidable valve core of the electromagnetic valve is normal.When pressure is regulated solenoid valve; Produce required constant system pressure; Industrial computer is supplied with solenoid valve Different control dutycycle to be measured chronologically when the test solenoid valve; Simultaneous computer is gathered the output pressure of solenoid valve to be measured through pressure unit; Computing machine compares the measured value and the standard value of having stored then, judges that solenoid valve output pressure under different temperatures, dutycycle are controlled judges solenoid valve different mechanical locations under different temperatures afterwards and whether have operation irregularity whether in the predetermined tolerance scope.
Claims (7)
1. automatic gearbox solenoid valve detector; Comprise cabinet, motor, oil pump, fuel tank, oil heater, pressure adjusting solenoid valve, frequency converter, relay, PWM power amplifier, PC, it is characterized in that fuel tank is fixed on the cabinet bottom, the fuel tank lower right side is provided with oil heater; Fuel tank center upper portion position is provided with pipeline and connects oil revolute chamber; Oil revolute chamber top is provided with the oil circuit rebound, and oil circuit rebound top is provided with the solenoid valve adapted seat, and solenoid valve adapted seat top is provided with solenoid valve to be measured; Solenoid valve base to be measured is provided with pipeline and passes oil circuit rebound connection pressure transducer; Solenoid valve base pipeline to be measured tap one end connects oil pressure adjusting valve, and the oil pressure adjusting valve bottom connects the output terminal of oil pump, and the input end of oil pump connects the input end of the safety valve on the fuel tank; Solenoid valve to be measured is provided with PWM power amplifier B; Solenoid valve to be measured connects PWM power amplifier B, and oil pressure adjusting valve connects PWM power amplifier A, and well heater is provided with relay; Oil pump connects frequency converter; The signal end of described PWM power amplifier B, power amplifier A, relay, frequency converter connects the signal output part of PC industrial computer through I/O interface board, DO/AO output, and the signal input part of PC industrial computer is provided with the DI/AI input mode, and the I/O interface board of described DI/AI is provided with pressure unit, temperature transmitter, electromagnetic valve current, stream and puts transmitter.
2. a kind of automatic gearbox solenoid valve detector as claimed in claim 1 is characterized in that pressure unit is provided with system pressure and detected pressures value.
3. a kind of automatic gearbox solenoid valve detector as claimed in claim 1 is characterized in that temperature transmitter is provided with oily temperature control value.
4. a kind of automatic gearbox solenoid valve detector as claimed in claim 1 is characterized in that flow transmitter is provided with flowmeter.
5. a kind of automatic gearbox solenoid valve detector as claimed in claim 1 is characterized in that the solenoid valve adaptation board is replaceable according to the different model solenoid valve.
6. a kind of automatic gearbox solenoid valve detector as claimed in claim 1 is characterized in that the every passage dutycycle of PWM solenoid control passage 0-100 million, frequency 0-2000Hz.
7. automatic gearbox solenoid valve detector and detection method thereof; It is characterized in that working current, control voltage, the oil temperature signal of computing machine through gathering solenoid valve; Indirect calculation goes out the resistance of solenoid valve under the different temperatures; Then computing machine through with the different temperatures that has stored under resistance standard value comparison, judge that solenoid valve exists open circuit or short circuit, has realized the detection to the solenoid valve electric property; When pressure adjusting solenoid valve produces required constant system pressure; Industrial computer is supplied with solenoid valve Different control dutycycle to be measured chronologically, and simultaneous computer is gathered the output pressure of solenoid valve to be measured through pressure unit, and computing machine compares measured value and the standard value of having stored then; Judge that solenoid valve output pressure under the control of different temperatures, dutycycle judges solenoid valve different mechanical locations under different temperatures afterwards and whether have operation irregularity whether in the predetermined tolerance scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100108765A CN102539137A (en) | 2012-01-13 | 2012-01-13 | Detector and detection method for electromagnetic valve of automobile automatic transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100108765A CN102539137A (en) | 2012-01-13 | 2012-01-13 | Detector and detection method for electromagnetic valve of automobile automatic transmission |
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| CN102539137A true CN102539137A (en) | 2012-07-04 |
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| CN2012100108765A Pending CN102539137A (en) | 2012-01-13 | 2012-01-13 | Detector and detection method for electromagnetic valve of automobile automatic transmission |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565615A (en) * | 2012-01-17 | 2012-07-11 | 上海新孚美变速箱技术服务有限公司 | Machine and method for detecting valve body of automobile automatic speed changer |
| CN104180989A (en) * | 2014-09-10 | 2014-12-03 | 安徽江淮汽车股份有限公司 | Solenoid valve testing device for automatic transmission and solenoid valve testing system |
| CN107917803A (en) * | 2018-01-09 | 2018-04-17 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of fuel solenoid valve test platform and test method |
| CN109655256A (en) * | 2018-12-29 | 2019-04-19 | 盛瑞传动股份有限公司 | Testing stand and experimental rig |
| CN113532721A (en) * | 2021-09-10 | 2021-10-22 | 盛瑞传动股份有限公司 | Testing method of transmission |
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| CN201828400U (en) * | 2010-07-14 | 2011-05-11 | 朱留存 | Electromagnetic valve and valve body performance detection device for automatic transmission |
| CN102169053A (en) * | 2010-12-24 | 2011-08-31 | 重庆青山工业有限责任公司 | Hydraulic control loop of high/low-temperature test bed for automatic transmission valve |
| CN202049035U (en) * | 2011-03-17 | 2011-11-23 | 合肥工业大学 | Electromagnetic valve testing system for automatic transmission |
| CN202471403U (en) * | 2012-01-13 | 2012-10-03 | 上海新孚美变速箱技术服务有限公司 | Detector for automobile automatic gearbox solenoid valve |
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2012
- 2012-01-13 CN CN2012100108765A patent/CN102539137A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05296883A (en) * | 1992-04-17 | 1993-11-12 | Nissei Eng Kk | Testing equipment of operation of safety valve |
| KR20090129677A (en) * | 2008-06-13 | 2009-12-17 | 광진정기(주) | Leak testing system of check valve for piston cooling |
| CN201828400U (en) * | 2010-07-14 | 2011-05-11 | 朱留存 | Electromagnetic valve and valve body performance detection device for automatic transmission |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565615A (en) * | 2012-01-17 | 2012-07-11 | 上海新孚美变速箱技术服务有限公司 | Machine and method for detecting valve body of automobile automatic speed changer |
| CN104180989A (en) * | 2014-09-10 | 2014-12-03 | 安徽江淮汽车股份有限公司 | Solenoid valve testing device for automatic transmission and solenoid valve testing system |
| CN107917803A (en) * | 2018-01-09 | 2018-04-17 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of fuel solenoid valve test platform and test method |
| CN109655256A (en) * | 2018-12-29 | 2019-04-19 | 盛瑞传动股份有限公司 | Testing stand and experimental rig |
| CN113532721A (en) * | 2021-09-10 | 2021-10-22 | 盛瑞传动股份有限公司 | Testing method of transmission |
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Application publication date: 20120704 |