KR0183264B1 - Solenoid valve tester and its control method - Google Patents

Abstract

The present invention relates to a solenoid valve test apparatus and a control method thereof, comprising: data input means for inputting test data of a solenoid valve from external devices and users; Data mode converting means for selecting automatic and manual mode states according to data applied by the data input means and outputting corresponding test data; In order to detect the solenoid valve operation state by adjusting the solenoid valve driving frequency, overexcitation time, etc. according to the control method received by the data selected by the data mode conversion means, and to display the test result on the screen for the user to see. Control means for outputting a corresponding signal; Encoder processing means for adjusting and supplying test conditions of the solenoid valve to the control means in accordance with the selection of the data mode conversion means; Output means for outputting the data to a screen display device and an output device set by a user so that a user can see a test result by receiving a signal output from the control means; Solenoid valve drive signal output means controlled by the control means according to the solenoid valve drive signal applied by the input means and the encoder processing means and outputting an on / off signal and a duty control signal of the solenoid valve; It consists of a power supply unit for supplying a stable power to the means, by reducing the manufacturing cost by simplifying the circuit by localizing the device, and the exact test by setting the same conditions as the vehicle by automatic and manual operation of the device It is possible to immediately respond in case of emergency during the test, to repair immediately in case of failure, and to test various models and a wide range of solenoid valves by simply modifying the program.

Description

Solenoid valve test device and control method

The present invention relates to a solenoid valve test apparatus and a control method thereof, and more particularly, to a solenoid valve for testing an operating state of a solenoid valve in which an opening degree is changed by changing an operating state according to a control signal output from each corresponding device. The present invention relates to a test apparatus and a control method thereof.

In general, a vehicle equipped with an automatic transmission controls the hydraulic pressure within a shift range set according to the driving speed of the vehicle so that the shift gear of the target shift stage may be automatically operated.

Therefore, the torque converter is operated according to the output power of the engine to control the rotational force of the fluid, and according to the control signal applied from the shift control device so that the shift gear according to the operating state of the vehicle can be operated. Hydraulic pressure acts on the valve to allow shifting.

Therefore, a vehicle equipped with an automatic transmission in which the operating state is controlled according to the hydraulic pressure does not require the operation of a clutch pedal to cut off power from the engine in order to change the operating state of the corresponding shift gear. Fatigue can be reduced, and an engine stall is not generated due to a malfunction of the driver or an immature driving during driving, so that even a beginner can easily operate a driving operation.

Therefore, the automatic transmission receives a fluid pressure from the oil pump by changing the port according to the selected position of the driver's shift lever, and the operating state of the hydraulic valve is changed by the fluid pressure so that any one of the gear stages of the transmission gear mechanism is shifted. Controls the operating state of the hydraulically driven friction element for selecting a stage.

The drive of the planetary gear arrangement is switched in accordance with the selective operation of the friction element consisting of a clutch or brake, which is then transmitted to the drive gear after an appropriate transmission ratio is made.

When the shifted power is transmitted to the drive gear, the shifted power is transmitted to the driven gear geared to the longitudinal reduction gear by the driven gear geared to the drive gear, thereby controlling the rotational movement of the wheel.

As described above, the target shift stage is determined according to the driving state of the vehicle, and when the control operation to the determined target shift stage is executed, the corresponding friction element is operated for each target shift stage among the friction elements consisting of a clutch or a brake. Let's do it.

Therefore, in order to operate the corresponding friction elements as described above, by applying the transmission oil to the corresponding flow path by the control signal of each corresponding device, the solenoid valve is controlled by the control signal to form hydraulic pressure, and the clutch and the brake are operated. In addition, the frictional elements were operated to bring the vehicle into a running state.

Therefore, in order to control the automatic transmission more precisely, the company that manufactures the vehicle has continuously conducted the test operation by studying the control operation of the solenoid valve.

Accordingly, in order to test the solenoid valve, a test apparatus has been imported from abroad to test the operation state of the solenoid valve.

However, the above-described conventional technology does not perform a wide range of tests with limited test operation because the test apparatus is manufactured and imported from a foreign country, and the user manually adjusts the test conditions because the test apparatus is manually operated. In the case of emergency, there is no way to cope immediately in case of emergency, and the test results are differently outputted by different users under the same test conditions. There is this.

In addition, as the device is manufactured and imported from a foreign country, a price determined by a foreign company must be paid, and when a failure of the test device occurs, it cannot be repaired immediately, and there is a problem that the repair cost is also expensive.

Therefore, in order to solve the above-mentioned conventional problems, the manufacturing cost is reduced by localizing the apparatus and simplifying the circuit, and the same conditions as the vehicle are set by performing the automatic and manual operation of the apparatus to perform accurate tests and tests. It is to provide solenoid valve test apparatus and control method that can immediately respond in case of serious emergency, can be repaired immediately in case of failure, and can test various models and wide range of solenoid valves simply by modifying the program.

The present invention for achieving the above object, the data input means for inputting the data applied to the test data of the solenoid valve from the external device and the user; Data mode converting means for selecting automatic and manual mode states according to data applied by the data input means and outputting corresponding test data; In order to detect the solenoid valve operation state by adjusting the solenoid valve driving frequency, overexcitation time, etc. according to the control method received by the data selected by the data mode conversion means, and to display the test result on the screen for the user to see Control means for outputting a corresponding signal; Encoder processing means for adjusting the test condition of the solenoid valve according to the selection of the data mode converting means and supplying it to the control means; Output means for outputting the data to a screen display device and an output device set by a user so that a user can see a test result by receiving a signal output from the control means; Solenoid valve drive signal output means controlled by the control means according to the solenoid valve drive signal applied by the input means and the encoder processing means and outputting an on / off signal and a duty control signal of the solenoid valve; It characterized in that it comprises a power supply for supplying a stable power to the means.

Another invention for achieving the above object, the step of initializing the test apparatus when the power is applied; Inputting solenoid valve driving data set by an external device and a user; Selecting, by the user, the test operation state into an automatic and manual state; Inputting solenoid valve operation state data related to the automatic mode when the test operation is selected as the automatic state by the user; Updating the driving frequency and the over-excitation time set by the user; Calculating and calculating a data value according to the operation state of the input solenoid valve by a set arithmetic expression; Determining whether to output the calculated data value; When a signal for outputting the calculated data is applied, the screen display unit and the solenoid valve driving unit outputs the corresponding data and returns to the data input step.

1 is a block diagram of a solenoid valve test apparatus according to an embodiment of the present invention.

2a, b is a flow chart of the control method of the solenoid valve test apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention, which can be achieved and realized in detail by the above objects, will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the input means 10 according to an embodiment of the present invention is automatically connected to an external device that automatically outputs a corresponding signal by setting a condition identical to a driving state of a vehicle by a program. An input unit 11; The switch located in the solenoid valve test apparatus is composed of a manual input unit 12 for inputting a signal output under the same condition as the driving state of the vehicle by the user arbitrarily manipulated.

In addition, as shown in Figure 1, the output means 50 according to an embodiment of the present invention, the screen display unit for outputting the screen so that the user can be recognized by receiving the signal output from the control means 30 ( 51);

It consists of an analog output unit 52 for converting the digital signal output from the control means 52 into an analog signal and output to an output device set by the user.

Therefore, when the user applies power to the solenoid valve test apparatus to detect the solenoid valve operation state of the automatic transmission, the operating state of all the variables and peripheral output devices used are initialized (S100), the automatic input unit 11 and the manual input unit. The data applied at 12 is applied (S200).

The control means 30 determines the switch position of the automatic and manual mode states not shown in the drawing as the data is input (S300).

Therefore, when the switch of the mode state determined above is the automatic mode, the control means 30 inputs and reads data related to the automatic mode state among the input data (S400).

In addition, the driving frequency and the over-excitation time updated and output by the encoder processing means 40 vary the automatic mode-related data input and read from the above, and calculate the data of the automatic mode state changed by the set arithmetic equation. The data value is calculated (S500, S600).

The control means 30 determines whether to output the corresponding data calculated above to the output means 50 and the solenoid valve driver 60 (S700).

When the user wants to output the data, the selection switch is turned on, so that the control means 30 drives the output means 50 and the solenoid valve so that the user can view the calculated data. The signal is output to the solenoid valve driver 60 as a corresponding signal, and the solenoid valve (not shown in the drawing) is turned on / off and duty and returned to the step S200 of inputting data (S800).

However, if the user does not want to output the data calculated in S700, the control means 30 returns to the data input step S200. In addition, when the user selects the operation mode as the manual mode in step S300, the control means 30 receives the data corresponding to the manual mode among the data input in step S200, reads the data, and calculates the result by a set arithmetic expression. By calculating the corresponding data (S310).

The user selects whether to output the calculated data to the output means 50 using a switch.

Therefore, when the user selects the switch as the data output state in order to output the corresponding data calculated in step S310, the control means 30 outputs the user to recognize the corresponding data calculated above. The signal is output to the screen display unit 51 and the analog signal output unit 52 as a corresponding signal (S330).

When the user operates a switch for outputting the same data as the shift stage of the automatic transmission located in the test apparatus, the control means 30 receives the shift stage applied from the control unit and outputs a control signal corresponding to the shift stage solenoid valve drive signal output means. Output to 60 (S350).

The user operates the mode selection switch for controlling the solenoid valve by the solenoid valve driving signal output from the above.

Therefore, the control means 30 determines whether the user has selected the sweep mode (S360).

When the user selects the sweep mode, the control means 30 determines whether the duty value storage variable is initialized and performs the sweep mode set in the memory by the solenoid valve driving signal output from the control means 30. Control the solenoid valve and return to the data input step (S200) (S370, 380).

However, if the duty value storage variable is not initialized in the above, the control means outputs the corresponding error code to the screen display device 51 and returns to the data input step S200.

However, if the mode set by the user in the step S360 is not the sweep mode, the control means 30 determines that the step value storage variable is initialized by determining that the step mode is set (S361).

When the duty value storage variable set above is initialized, the control means 30 performs the step mode set in the memory to control the solenoid valve, updates the encoder related data, and returns to step S200 of inputting data. (S362, S363).

However, if the duty storage variable is not initialized in the above, it continues to perform the step mode being performed, control the solenoid valve, update the encoder-related data and returns to the step (S200) (S364, S365).

The above embodiments are described as the most preferred embodiments, and the present invention is not limited thereto, and the embodiments can be easily described from the above embodiments.

As described above, in the embodiment of the present invention, the apparatus is localized to simplify the circuit, thereby reducing the manufacturing cost, and automatically and manually operating the apparatus to set the same conditions as the vehicle to perform accurate testing and testing. It is possible to provide a solenoid valve test apparatus and control method that can immediately respond in case of emergency, can be repaired immediately in case of failure, and can test various models and a wide range of solenoid valves by simply modifying the program.

Claims (8)

Data input means for inputting test data of the solenoid valve from the external device and the user; Data mode converting means for selecting automatic and manual mode states according to data applied by the data input means and outputting corresponding test data; In order to detect the solenoid valve operation state by adjusting the solenoid valve driving frequency, overexcitation time, etc. according to the control method received by the data selected by the data mode conversion means, and to display the test result on the screen for the user to see. Control means for outputting a corresponding signal; Encoder processing means for adjusting and supplying test conditions of the solenoid valve to the control means in accordance with the selection of the data mode conversion means; Output means for outputting the data to a display device and an output device set by a user when a user receives a signal output from the control means to view a test result; Solenoid valve drive signal output means controlled by the control means according to the solenoid valve drive signal applied by the input means and the encoder processing means and outputting an on / off signal and a duty control signal of the solenoid valve; Solenoid valve test apparatus comprising a power supply for supplying a stable power to the means. The apparatus of claim 1, further comprising: an automatic input unit connected to an external device for automatically outputting a corresponding signal by setting a condition identical to a driving state of the vehicle by a program; Solenoid valve test apparatus characterized in that it comprises a manual input unit for inputting a signal output under the same conditions as the driving state of the vehicle by the user arbitrarily manipulate the switches located in the solenoid valve test apparatus. The display apparatus of claim 1, further comprising: a screen display unit configured to receive a signal output from the control unit and to output the screen to a user so that the user can recognize the signal; Solenoid valve test apparatus comprising an analog output unit 52 for converting the digital signal output from the control means into an analog signal and output to the output device set by the user. Initializing the test apparatus when power is applied; Inputting solenoid valve driving data set by an external device and a user; Selecting, by the user, the test operation state into an automatic and manual state; Inputting solenoid valve operation state data related to the automatic mode when the test operation is selected as the automatic state by the user; Updating the driving frequency and the over-excitation time set by the user; Calculating and calculating a data value according to the operation state of the input solenoid valve by a set arithmetic expression; Determining whether to output the calculated data value; And a step of outputting the corresponding data to the screen display unit and the solenoid valve driving unit and returning to the data input step when a signal for outputting the calculated data is applied to the screen display unit and the solenoid valve driving unit. The method according to claim 4, wherein when the user selects the manual mode and is not in the automatic mode, the control means inputs and reads data corresponding to the manual mode and calculates the calculated arithmetic formula; Determining whether to output the calculated data; If the data output signal is applied by a user, outputting the calculated data to an output means; Operating a switch located in the test apparatus to set a shift stage and outputting the set signal to the solenoid valve driving signal output means; Determining whether the selection mode is a sweep mode; If the selection mode is a sweep mode, the control means determines whether the duty value storage variable is initialized; And performing a sweep mode set in the memory by the solenoid valve driving signal when the duty value storage variable is initialized, and then returning to the data input step. The solenoid valve control method according to claim 5, further comprising outputting an error code to an output means and returning to a data input step when the duty value storage variable is not initialized. The method of claim 6, further comprising: determining that the duty value storage variable is initialized by determining that the control mode is the step mode when the mode selected by the user is not the sweep mode; When the duty value storage variable is initialized, the solenoid valve control is performed by performing the step mode stored in the memory to control the solenoid valve, updating the encoder related data, and then returning to the data input step. Way. 8. The solenoid valve control method according to claim 7, wherein if the duty value storage variable is not initialized, continuing the step mode being performed, updating the encoder related data, and returning to the data input step.