JPH05281091A - Clutch facing testing apparatus - Google Patents

Abstract

PURPOSE:To apply torque to an input shaft or an output shaft by controlling the supply of a hydraulic fluid to an actuator for cutting or connecting a clutch of an automatic transmission to cut or touch the clutch, and controlling torque applying means connected to the input shaft or the output shaft. CONSTITUTION:A hydraulic fluid in an automatic transmission 13 is kept at a set temperature by a heater 3 and supplied to an actuator 14 for cutting or connecting a clutch by a cutting or touching hydraulic circuit 1. A CPU controls the circuit 1 to control the hydraulic fluid of the actuator 14 and cutting or connecting operation is repeated for a specified clutch 15 and a rotary actuator 23 is controlled at every connection time and torque is applied to an input shaft 13a periodically. The clutch 15 is connected by previously set pressure and the set torque is applied in a set cycle and cutting is also possible. Consequently, compression peeling due to cutting or connecting and shearing peeling at the time of connection occur for the facing of the clutch 15 and a test corresponding to the practical operational conditions can be done and proper improvement for clutch facing materials, etc., can be achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test device for clutch facing, for example, a test device for peeling which occurs in facing of a wet multi-plate clutch installed in an automatic transmission for a vehicle. The present invention relates to a clutch facing test apparatus that can be used for various tests of wet clutch facings.

[0002]

2. Description of the Related Art As a conventional clutch facing test apparatus of this type, there is a clutch facing test apparatus for an automatic transmission for a vehicle shown in FIG.

FIG. 23 is an explanatory view showing the schematic construction of this conventional clutch facing test apparatus. In addition,
This test device is a test target of a lock-up clutch used as a brake among the clutches 15 of the automatic transmission 13. For example, this type of clutch 15 is a planetary gear provided in the automatic transmission 13. Is connected to any of the elements with no rotation difference,
In addition, during connection, it plays a role of holding the above-mentioned element stationary against the connection shock of the other clutch 15 and the torque fluctuation of the internal combustion engine. That is, in the usage state of this type of clutch 15, torque is applied after the clutch is connected. Further, as is well known, the clutch 15 of this embodiment has a clutch facing 15c in which a friction material 15a is attached to a core metal 15b. The automatic transmission 13 used in this embodiment has a structure having the function of the clutch 15, and does not necessarily require a torque converter and / or a speed change gear.

As shown in the figure, the test device is constructed as a clutch connecting / disconnecting hydraulic circuit 1, and a heater 3 as a temperature adjusting means and an oil temperature sensor 4 are provided in an oil tank 2 of the hydraulic circuit 1.
Is provided. The heater 3 is controlled to be turned on / off by a control circuit (not shown) based on the detection value of the oil temperature sensor 4, so that the working oil in the oil tank 2 is always about 100 ° C. It is designed to be heated to about the oil temperature when it is installed and in operation.
A hydraulic pump 6 is rotatably driven by a motor 5 in the oil tank 2.
Is connected, and the discharge pressure of the hydraulic pump 6 is
It is designed to be manually adjusted in advance.

A switching valve 9 is connected to the hydraulic pump 6 via a check valve 8, and the discharge side of the switching valve 9 serves as a clutch connecting / disconnecting connection port 11a. The clutch connection / disconnection connection port 11a is provided with a pressure adjusting valve 10 for adjusting the pressure of the hydraulic oil discharged from the clutch connection / disconnection connection port 11a. Further, the check valve 8 and the switching valve 9 are branched to provide an oil temperature holding connection port 11b, and the discharge pressure on the connection port 11b side is manually adjusted in advance by the pressure adjusting valve 12. ing.

During the test, the clutch connecting / disconnecting connection port 11a is connected to the clutch connecting / disconnecting actuator 14 installed in the automatic transmission 13 for a vehicle, and the actuator is operated according to the switching operation of the switching valve 9. 14 operates, and a specific clutch facing 15c in the transmission 13
The clutch 15 having is connected and disconnected. At this time, the connection pressure that holds the clutch facing 15c of the clutch 15 is adjusted by the pressure adjusting valve 10. Further, the oil temperature holding connection port 11b is connected to the inside of the automatic transmission 13, and the hydraulic oil from the hydraulic pump 6 is transmitted to the transmission 13.
It circulates inside.

Next, the operation of the clutch facing test apparatus constructed as described above will be described.

In the test, the heated operating oil from the hydraulic pump 6 is introduced into the automatic transmission 13 through the oil temperature holding connection port 11b, and the operating oil in the transmission 13 is actually used. It is kept at the same temperature as the situation. Then, the switching valve 9 is caused to repeat the switching operation at a predetermined cycle, and the clutch 1
5 is repeatedly switched between the connected state and the disconnected state at a predetermined connection pressure. As a switching cycle at this time, for example, after the connection state is continued for 2 seconds, the disconnection state is continued for 10 seconds, and this is repeated 15000 times. as a result,
Peeling due to compression occurs in the clutch facing 15c of the clutch 15, and then the automatic transmission 13 is disassembled to take out the clutch 15, and the suitability of the material of the clutch facing 15c is determined based on the peeled state of the clutch facing 15c. ing.

Incidentally, the above-mentioned test device is used in the clutch 15
With the automatic transmission 13 mounted on the vehicle, the connecting / disconnecting operation is performed while reproducing the actual close contact state of the clutch 15. For example, the clutch 15 alone is assembled to a jig so that the clutch 15 can be connected / disconnected. In some cases, the connecting / disconnecting operation may be performed by immersing in the heated hydraulic oil. However, even in this case, the test content is to repeat the connection / disconnection operation of the clutch 15.

[0010]

In the conventional clutch facing testing apparatus, the clutch facing 15c is simply formed by repeating the connecting / disconnecting operation of the clutch 15 as described above.
However, it is possible to reproduce the peeling caused by the connecting / disconnecting operation, but it is not possible to reproduce the peeling caused by the torque applied after the connection.

Specifically, since the clutch facing 15c of the clutch 15 in the actual use condition is subjected to compression due to connection and disconnection as well as shear due to torque, the use condition becomes severe, and the clutch facing 15c.
Although c peels off early, only compression due to disconnection is reproduced in the test, so the conditions are mild and the clutch facing 15c does not peel easily. Therefore, in the conventional test apparatus, a test result exceeding the endurance limit during actual use is obtained, and it is desired to improve the test result in terms of reliability.

[0012] Therefore, an object of the present invention is to provide a test device for a clutch facing, which is capable of performing a test corresponding to an actual use condition and performing a test on the premise of an environment at the time of use for the clutch facing.

[0013]

According to a first aspect of the present invention, there is provided a clutch facing test apparatus in which a clutch connecting / disconnecting actuator provided in an automatic transmission for a vehicle having a clutch and an input shaft or an output shaft is provided with hydraulic oil. The clutch connecting / disconnecting hydraulic circuit for supply control controls the supply of hydraulic oil to the clutch connecting / disconnecting actuator of the automatic vehicle transmission to cause the clutch to perform connecting / disconnecting operation. The torque applying means connected to the output shaft is controlled to apply torque to one of the input shaft and the output shaft.

A clutch facing test apparatus according to a second aspect of the present invention is the automatic transmission for a vehicle according to the first aspect, further comprising temperature adjusting means for holding the working oil in the automatic transmission for the vehicle at a predetermined temperature. Is.

A clutch facing test apparatus according to a third aspect of the present invention comprises means for connecting the clutch, means for periodically applying torque to the clutch, and means for disengaging the clutch.

According to a fourth aspect of the present invention, there is provided a clutch facing test apparatus, which comprises means for connecting the clutch, means for periodically applying torque to the clutch after a predetermined time has elapsed, and means for applying the torque to the clutch after a predetermined time has elapsed. A means for stopping the torque application and a means for disengaging the clutch after a predetermined time has elapsed are provided.

According to a fifth aspect of the present invention, there is provided a clutch facing test apparatus, a means for connecting the clutch, a means for periodically applying torque to the clutch after the start of connection of the clutch of the means, and after a predetermined time has elapsed. A means for stopping the torque application to the clutch and a means for disengaging the clutch after a lapse of a predetermined time are provided.

According to a sixth aspect of the present invention, there is provided a clutch facing test apparatus comprising: a means for connecting a clutch; and a means for changing the connection pressure of the clutch in accordance with an actual use condition and periodically applying a torque. And means for disengaging the clutch.

[0019]

According to the invention of claim 1, the control means for controlling the clutch connecting / disconnecting hydraulic circuit and the torque applying means,
The clutch disconnecting / connecting actuator of the automatic transmission for a vehicle supplies hydraulic oil to the clutch disconnecting / connecting hydraulic circuit to control the clutch connecting / disconnecting. Further, torque is applied to the input shaft or the output shaft by the torque applying means connected to the input shaft or the output shaft of the vehicle automatic transmission.

According to a second aspect of the present invention, the automatic transmission for a vehicle according to the first aspect is further provided with a temperature adjusting means for maintaining the working oil in the automatic transmission for the vehicle at a predetermined temperature, thereby increasing the atmosphere of the clutch facing. The actual operating environment temperature is used.

According to the third aspect of the present invention, the clutch facing is repeatedly connected at a predetermined connection pressure to cause separation due to compression, and a periodic torque is applied at the time of connection.

In the invention of claim 4, the torque is applied at the same timing as the torque application to the lockup clutch during the test.

In the invention of claim 5, the torque is applied at the same timing as the torque application to the actual clutch during the test.

In the sixth aspect of the present invention, the connection pressure of the clutch is changed during the test in accordance with the change of the connection pressure in the actual use condition.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A clutch facing test apparatus according to an embodiment of the present invention will be described below.

<First Embodiment> FIG. 1 is an explanatory view showing a schematic structure of a clutch facing test apparatus according to a first embodiment of the present invention. This test device is a test device for testing the separation that occurs in the clutch facing of an automatic transmission for a vehicle, and a new configuration is added to the test device described in the prior art. Hereinafter, a hydraulic circuit newly added to the clutch connecting / disconnecting hydraulic circuit 1 of the conventional test device will be referred to as a torque applying hydraulic circuit 16. Therefore, in particular, the configuration of the torque applying hydraulic circuit 16 will be mainly described.

As shown in the figure, the torque applying hydraulic circuit 16
A hydraulic pump 19 rotatably driven by a motor 18 is connected to the oil tank 17, and the discharge pressure of the hydraulic pump 19 is adjusted to a predetermined pressure by a pressure adjusting valve 20.
A switching valve 22 formed of a servo valve is connected to the hydraulic pump 19 via a check valve 21, and a rotary actuator 23 as a torque applying means is connected to the switching valve 22. Output shaft 23 of rotary actuator 23
A is connected to the input shaft 13a of the vehicle automatic transmission 13 via a torque sensor 24 and a coupling 25. Further, in the present embodiment, the output shaft 13 of the automatic transmission 13 for a vehicle is
b is non-rotatably fixed.

The automatic transmission 13 for a vehicle in the case of implementing the present invention is limited to one having a complete structure as an automatic transmission that is mounted on a vehicle and functions as the automatic transmission 13 for a vehicle by itself. The clutch 15
It suffices to have a mechanism capable of engaging and disengaging, and applying torque to the clutch 15. That is, at least the clutch 1
5 and the automatic transmission 13 for a vehicle having the input shaft 13a or the output shaft 13b.

The hydraulic oil from the hydraulic pump 19 is transferred to the rotary actuator 2 in accordance with the switching operation of the switching valve 22.
3, the rotary actuator 23 applies torque to the input shaft 13a of the vehicle automatic transmission 13 in the actual rotation direction of the internal combustion engine, and the torque sensor 24 detects the torque applied to the input shaft 13a. It is like this. Further, the rotary actuator 23 is provided with an angle sensor 26 for detecting the rotation angle of the output shaft 13a thereof, that is, the twist angle generated in the input shaft 13a of the automatic transmission 13 for a vehicle by the applied torque. Is becoming

FIG. 2 is a front view showing a control panel of the clutch facing testing apparatus according to the first embodiment of the present invention.

As shown in the figure, a liquid crystal display panel 28 is installed on the control panel 27, and under the liquid crystal display panel 28, the setting start for starting the setting of the test conditions prior to the peeling test is started. A switch 29, a mode selector switch 30 for sequentially designating each condition when setting test conditions, a ten-key pad 31 for inputting a set value for each condition based on the display on the liquid crystal display panel 28, and a peeling test is started. There is provided a test start switch 32 and a finish lamp 33 for indicating the end of the peeling test.

Next, the electrical construction of the clutch facing test apparatus of this embodiment will be described. FIG. 3 is a block diagram showing an electrical configuration of a clutch facing test apparatus according to the first embodiment of the present invention.

As shown in the figure, a central processing unit 34 (hereinafter simply referred to as "CPU") as a control means of the test apparatus.
On the input side of the oil temperature sensor 4 of the clutch connecting / disconnecting hydraulic circuit 1 and the torque sensor 24 of the torque applying hydraulic circuit 16.
And the angle sensor 26 is connected. Also, CPU3
The setting start switch 2 of the control panel 27 is provided on the input side of 4.
9, a mode changeover switch 30, a ten-key pad 31, and a test start switch 32 are connected.

On the output side of the CPU 34, the heater 3 of the clutch connecting / disconnecting hydraulic circuit 1, the motor 5, the switching valve 9,
The pressure adjusting valve 10, the motor 18 of the torque applying hydraulic circuit 16 and the switching valve 22 are connected to each other via drive circuits 35 to 40. Also, on the output side of the CPU 34,
The liquid crystal display panel 28 of the control panel 27 and the end lamp 33 are connected via drive circuits 41 and 42, respectively.

Further, a read-only memory 43 (hereinafter simply referred to as "ROM") and a random access memory 44 (hereinafter simply referred to as "RAM") are connected to the CPU 34, and the ROM 43 is provided with a series of test operations for this test apparatus. Various programs such as a program for executing the program and a program for causing the liquid crystal display panel 28 to perform a display operation are stored, and the CPU 34 operates according to these programs. RAM44 is CP
The processing data executed by U43 is temporarily stored.

Next, the operation of the clutch facing test apparatus of the present embodiment constructed as described above will be explained.

FIG. 4 is a flow chart showing the main routine executed by the CPU in the clutch facing test apparatus according to the first embodiment of the present invention, and FIG. 5 is the CPU in the clutch facing test apparatus according to the first embodiment of the present invention. 5 is a flowchart showing an oil temperature control routine executed by the.

First, an outline of the peeling test as a test of the clutch facing 15c will be described. In this test, the clutch 15 of the automatic transmission 13 for a vehicle is between the connected state and the disconnected state as in the conventional peeling test. It is repeatedly switched at a predetermined cycle, and in addition, in this embodiment, the clutch 15
When is connected, torque is periodically applied to the input shaft 13a of the vehicle automatic transmission 13.

Here, various conditions for the peeling test will be described. The operating oil temperature of the clutch connecting / disconnecting hydraulic circuit 1 is changed to the oil temperature Te.
The clutch connection pressure P is the clutch connection pressure P, the clutch 15 connection time is the clutch connection time Tm1, the clutch 15 disconnection time is the clutch disconnection time Tm2, and the clutch 15 is connected or disconnected during the test. Let the number of repetitions be the number of continuations N. The maximum value of the torque applied to the input shaft 13a is the torque amplitude, and this torque amplitude is displayed by either the torque value Tq or the twist angle. This torque value Tq means the torque sensor 2
4 is the value of the torque itself that is actually applied to the input shaft 13a, and the twist angle is the angle of twist that is detected by the angle sensor 26 when the torque is applied to the input shaft 13a. .. Further, the fluctuation cycle of the torque applied to the input shaft 13a is referred to as a torque fluctuation cycle C.

The main routine of FIG. 4 operates at the same time when the power switch (not shown) is turned on. Now, when neither the setting start switch 29 nor the test start switch 32 is operated, the CPU 34 initializes in step S1, clears all the flags and the memory to be used, and the setting start switch 29 is not operated in step S2. To step S3, and in this step S3, the test start switch 3
Since No. 2 has not been operated, the process returns to step S2 through the oil temperature control of step S9. Therefore, in this case, the flag is held in the clear state and
No peeling test or test conditions will be set.

When the test start switch 32 is operated from the above-mentioned state, the process proceeds from step S3 to step S4, and since the flag is not set in this step S4, the oil temperature control of step S9 is performed. The procedure returns to step S2. That is, at this point in time, the test conditions have not been set, and therefore the peeling test is not performed even if the test start switch 32 is operated.

Further, when the setting start switch 29 is operated from the above-mentioned state, the process moves from step S2 to step S5 to set the test condition, the flag is set in step S6, and the process returns to step S2. Then, when the test start switch 32 is subsequently operated, the process proceeds from step S3 to step S4, and the flag has already been set, that is, the test condition has been set. Therefore, the process proceeds to step S7 and the peeling test is performed. To execute. After the test is completed, the end lamp 33 is turned on in step S8 to notify the operator of the end of the test, the oil temperature is controlled in step S9, and the process returns to step S2 to repeatedly execute this routine.

On the other hand, in the main routine of FIG. 4, when the oil temperature control routine is called in step S9, it is determined in step S11 whether the temperature of the actual hydraulic oil is equal to or higher than the oil temperature Te, and When the temperature is equal to or higher than the temperature Te, the heater 3 is kept off in step S12, and when the temperature is lower than the oil temperature Te, the heater 3 is kept on in step S13. Therefore, the heater 3 is controlled to be turned on / off by the processing of steps S11 to S13 of this routine, and the actual temperature of the hydraulic oil is maintained at about the oil temperature Te.

Next, the details of the test condition setting process executed in step S5 of the above-mentioned main routine will be described.

6 and 7 are flow charts showing the details of the setting processing routine executed by the CPU in the clutch facing test apparatus according to the first embodiment of the present invention, and FIGS. 8 and 9 are the first embodiment of the present invention. FIG. 6 is an explanatory diagram showing a display on a liquid crystal display plate in the clutch facing test apparatus. It should be noted that determination of completion of various inputs is omitted in the flowchart.

When the test condition setting processing routine is called, the CPU 34 displays a message "Please input the oil temperature" on the liquid crystal display panel 28 in step S21, as shown in FIG. In response to the message, the operator inputs the oil temperature Te with the ten key 31 in step S22 and presses the mode changeover switch 30 after the input is completed. Next, in step S23, as shown in FIG. 8, a message "Please input the connection pressure" is displayed on the liquid crystal display panel 28, and in step S24, the operator inputs the clutch connection pressure P with the ten keys 31. Then, when the mode changeover switch 30 is pressed, the process proceeds to step S25. It is assumed that 100 ° C. is input as the oil temperature Te and 10 kg / cm ² is input as the clutch connection pressure P.

Further, in step S25, the message "Please input the clutch connection time" is displayed on the liquid crystal display panel 28 in the same manner as the above-mentioned display, and in step S26, the operator uses the ten-key 31 to set the clutch connection time Tm1. When the input is made and the mode changeover switch 30 is pressed, a message "Please input the clutch disengagement time" is displayed on the liquid crystal display panel 28 at step S27, and the step S28 is performed.
When the operator inputs the clutch disengagement time Tm2 with the ten keys 31 and presses the mode changeover switch 30, the operation proceeds to step S29. Now, suppose the clutch connection time T
2 sec as m1 and 2 as clutch disengagement time Tm2
It is assumed that 8 seconds is input. The 28 sec set as the clutch disengagement time Tm2 is longer than the clutch disengagement time set in a general peeling test.

Then, in step S29, the liquid crystal display panel 28
A message "Please input the number of times of continuation" is displayed on the screen, and in step S30, when the operator inputs the number of times of continuation N with the ten keys 31 and presses the mode changeover switch 30, the process proceeds to step S31. Now, suppose that 15,000 times is input as the number of continuations N. Further, in step S31, as shown in FIG. 9, a message "Please select the unit of torque amplitude" is displayed on the liquid crystal display panel 28. When the operator inputs the torque amplitude as the torque value Tq in step S32, the operator presses 1 on the numeric keypad 31.
When the torque amplitude is input as the twist angle, the numeric keypad 2 is pressed, and the mode changeover switch 30 is pressed after the input is completed.

Next, in step S33, it is determined which of the torque value Tq and the twist angle is selected by the operator. When the torque value Tq is selected, the "torque value is displayed on the liquid crystal display panel 28 in step S34. Please input ”message and the operator presses the numeric keypad 31 in step S35.
When the torque value Tq is input and the mode selector switch 30 is pressed, the process proceeds to step S38. Similarly,
When the twist angle is selected in step S33, the message "Please input the twist angle" is displayed on the liquid crystal display panel 28 in step S36, and in step S37, the operator selects the twist angle with the ten keys 31. When the input is made and the mode switch 30 is pressed, the process proceeds to step S38. Now assume that the torque amplitude is 30 kgm as the torque value Tq.
Is entered.

Further, in step S38, the message "Please input the torque fluctuation cycle" is displayed on the liquid crystal display panel 28, and in step S39, the operator inputs the torque fluctuation cycle C with the ten keys 31 to switch the mode. When the switch 30 is pressed, the test condition setting process ends. Now, assume that 2 Hz is input as the torque fluctuation cycle C. In addition, all the above input data are R
It is stored in AM44.

Next, details of the peeling test execution processing executed in step S7 of the main routine described above will be described.

FIG. 10 is a flow chart showing details of a test execution processing routine executed by the CPU in the clutch facing test apparatus according to the first embodiment of the present invention.
FIG. 1 is a time chart at the time of testing of the clutch facing test apparatus according to the first embodiment of the present invention.

When the test execution processing routine is called in step S7, the CPU 34 clears the counter n in step S41, and the connection pressure of the clutch 15 by the clutch connecting / disconnecting actuator 14 is changed to the clutch in step S23 in step S42. 1 set as connection pressure P
The set pressure of the pressure control valve 10 of the clutch connecting / disconnecting hydraulic circuit 1 is set so as to be 0 kg / cm ² . Then, step S
When it is confirmed in 43 that the actual oil temperature has reached 100 ° C. set as the oil temperature Te in step S22 by heating the heater 3, the clutch connection / disconnection hydraulic circuit 1 is switched in step S44. The valve 9 is switched to supply the hydraulic oil from the hydraulic pump 6 to the clutch connecting / disconnecting actuator 14. As a result, as shown in FIG. 11, the clutch 15 of the vehicular automatic transmission 13 is actually connected at a connection pressure of 10 kg / cm ² .

Further, in step S45, the above step S2
In step 5, it is determined whether or not 2 seconds set as the clutch connection time Tm1 has elapsed. Since it has not elapsed yet, the process proceeds to step S46. In step S46, the switching valve 22 of the torque applying hydraulic circuit 16 is switched, and the rotary actuator 23 applies torque to the input shaft 13a of the transmission 13 in the actual rotation direction of the internal combustion engine.
Therefore, the torque in the same direction (hereinafter, referred to as "forward direction") as during operation is also applied to the clutch 15 in the transmission 13. The torque actually applied to the input shaft 13a based on the detection value of the torque sensor 24 in step S47 is the torque value T in step S35.
When 30 kgm set as q is reached, step S4
At 8, the switching valve 22 is switched to lock the rotary actuator 23. Therefore, the automatic transmission 1 for a vehicle
A torque of 30 kgm is continuously applied to the No. 3 input shaft 13a.

Further, when the preset lock time S has elapsed in step S49, the switching valve 22 is operated in step S50.
Is switched to stop applying torque to the rotary actuator 23. Therefore, the torque applied to the clutch 15 decreases in a short time, and the torque value Tq is 0 kg based on the detection value of the torque sensor 24 in step S51.
When it is determined that m has been reached, the process returns to step S45.

The lock time S is determined by step S4.
The time required from the start of torque application in step 6 to the end of torque application in step S51, that is, the time of one unit of the torque value shown in FIG. 11, is adjusted so that the time is the reciprocal of the torque fluctuation cycle C. There is. Therefore, in this case, the torque fluctuation cycle C is set to 2 in step S38.
Since Hz is set, the unit time of the torque value is adjusted to 0.5 sec by the lock time S.

Thereafter, the CPU 34 determines whether or not 2 seconds set as the clutch engagement time Tm1 in step S45 has elapsed, and since only 0.5 seconds has yet passed, the steps from step S46 to step S51 are performed again. The process is repeated to apply torque to the input shaft 13a of the transmission 13. Then, the process from step S46 to step S51 is repeated four times until 2 seconds elapse in step S45, and then the process proceeds to step S52. Further, in step S52, the switching valve 9 of the clutch connecting / disconnecting hydraulic circuit 1 is switched to disconnect the clutch 15 of the vehicle automatic transmission 13, and in step S53 the clutch disconnection time Tm2 set in step S39 is set to 28 sec. Wait until elapses.

Thereafter, in step S54, the counter n is incremented by "+1", and in step S55, it is determined whether or not the counter n has reached 15000 set as the number of continuation N in step S30. Therefore, the process returns to step S44, and the clutch 15 of the vehicle automatic transmission 13 is connected and disconnected again, and torque is applied to the input shaft 13a.

In this way, the clutch 15 is 10 kg / cm ²
The connection pressure of 2 seconds and the interruption of 28 seconds are repeatedly switched, and at the time of connection, a maximum torque of 30 kgm is applied at a cycle of 2 Hz, that is, four times. Then, this series of processing is repeated 15,000 times and executed, and step S55
When the counter n reaches the number of continuation N in step S4, it is considered that the peeling test is completed, and the end lamp 33
Is turned on and the process returns to step S2.

Therefore, the clutch facing 15c of the clutch 15 is not only peeled off by compression during the connecting / disconnecting operation, but also peeled off due to shearing when torque is applied, as in actual use, and the clutch 15 is actually used. It is possible to carry out a test corresponding to the situation.

Further, the clutch 15 is connected to the automatic transmission 1 for a vehicle.
Since the clutch 15 is engaged and disconnected and the torque is applied in a state where the clutch 15 is installed in the No. 3, the clutch 15 at the time of connection is in the same contact state as in actual use, and the test accuracy is improved.

Further, as described above, the clutch disengagement time T
When a relatively long period of 28 seconds is set as m2, even when the clutch facing 15c is compressed by the clutch connecting pressure P and the plate thickness is reduced, the plate thickness is recovered during the disconnection time Tm2 and the clutch is engaged. Similar to the less frequently used condition, reconnection is performed after the plate thickness is recovered. Therefore, unlike the conventional peeling test, the reconnection is performed before the plate thickness is completely recovered, and the peeling test is prevented from being performed under the condition different from the actual use condition. The above-mentioned set values of the oil temperature Te, the clutch connection pressure P, the clutch connection time Tm1, the clutch disengagement time Tm2, the continuation number N, the torque amplitude torque value Tq, the twist angle, and the torque fluctuation cycle C are for vehicles. Automatic transmission 13 and clutch 15
It can be arbitrarily set according to the specifications and the like.

As described above, this test apparatus not only carries out the test with the clutch 15 installed in the automatic transmission 13 for a vehicle, but also uses a jig so that the clutch 15 alone can be connected and disconnected. It is also possible to assemble it, immerse it in heated hydraulic oil, and carry out a peeling test according to the procedure described above. In this case, the clutch 15 is not connected / disconnected using the clutch connecting / disconnecting actuator 14 in the vehicle automatic transmission 13, and is connected / disconnected at a predetermined connection pressure by the clutch connecting / disconnecting actuator 14 provided in the jig. Will be operated.

Further, the input shaft 13 of the vehicle automatic transmission 13
The direction of the torque applied to a is 0 to 3 only in the forward direction which is the actual rotation direction of the internal combustion engine as described above.
Not only it is fluctuated within 0 kgm, but it may be fluctuated between 30 and -30 kgm alternately in the forward and reverse directions.

As described above, the test apparatus for the clutch facing of the first embodiment is used for the vehicle automatic transmission 13 for vehicles.
A heater 3 for holding the working oil therein at a predetermined temperature, a clutch connecting / disconnecting hydraulic circuit 1 for supplying the working oil to a specific clutch connecting / disconnecting actuator 14 installed in the vehicle automatic transmission 13, and the vehicle The rotary actuator 23, which is connected to the input shaft 13a of the automatic transmission 13 and periodically applies torque, and the clutch connection / disconnection hydraulic circuit 1 are controlled,
The hydraulic oil is supplied to the clutch connecting / disconnecting actuator 14 of the automatic transmission 13 for a vehicle to cause the specific clutch 15 to repeat the connecting / disconnecting operation, and the clutch 1
5, the rotary actuator 23 is controlled so that torque is periodically applied to the input shaft 13a.
And PU34.

Also, the clutch facing test apparatus implemented by this test apparatus maintains the connection state of the clutch 15 with the means for connecting the specific clutch 15 at a preset clutch connection pressure P. Up to 30kg
A means for applying a torque of / cm ² at a cycle of 2 Hz and a means for disengaging the clutch 15 are provided.

Therefore, the clutch 15 of the vehicle automatic transmission 13 is repeatedly connected and disconnected by the clutch connecting and disconnecting actuator 14 supplied with hydraulic oil from the clutch connecting and disconnecting hydraulic circuit 1, and compressed by the clutch facing 15c. In addition, the rotary actuator 23 applies a periodic torque during connection, and the clutch facing 15c is peeled due to shearing, so that a test corresponding to the actual operating state of the clutch 15 can be performed. Therefore, it is possible to reproduce the same detached state as the clutch facing 15c at the time of use, and it is possible to implement appropriate improvement measures for the clutch facing material and the like based on the released state.

<Second Embodiment> FIG. 12 shows a CP in a clutch facing test apparatus according to a second embodiment of the present invention.
FIG. 13 is a flowchart showing the details of the setting processing routine executed by U, FIG. 13 is a flowchart showing the details of the test execution processing routine executed by the CPU in the clutch facing test apparatus according to the second embodiment of the present invention, and FIG. 2 is a time chart during the test of the clutch facing test apparatus according to the second embodiment of the present invention.

The flowchart of FIG. 12 is a partial modification of the flowchart of FIG. 7 of the first embodiment, and the flowchart of FIG. 13 is a partial modification of the flowchart of FIG. 10 of the first embodiment. It has been changed.
The configuration of the test device of the second embodiment is the same as that of the test device of the first embodiment. Therefore, the difference in processing will be mainly described with reference to FIGS. 12 and 13.

First, the details of the test condition setting process will be described with reference to FIG. 12. As in the first embodiment, the CPU 34 performs the process up to step S39 to set the oil temperature Te and the torque fluctuation cycle C. Do. Then, in this embodiment, in step S61, the message "Please input the delay time" is displayed on the liquid crystal display panel 28, and in step S62, the operator presses the ten key 31 to set the delay time Tma.
Is input and the mode selector switch 30 is pressed, the process proceeds to step S63. Furthermore, step S63
Then, the message "Please input the torque application time" is displayed on the liquid crystal display panel 28, and in step S64, when the operator inputs the torque application time Tmb with the ten key 31 and presses the mode changeover switch 30, The test condition setting process ends. Now, suppose that the delay time Tma is 0.
It is assumed that 5 sec is input and 1.0 sec is input as the torque application time Tmb. All the above input data are stored in the RAM 44.

Further, the details of the execution process of the peeling test will be described with reference to FIG. 13. As in the first embodiment, the CPU 34 connects the clutch and sets the clutch connection time Tm1 by the processes up to step S45. 2 sec
Is determined. Then, in this embodiment,
When the clutch engagement time Tm1 has not yet elapsed in step S45, the process proceeds to step S71, and it is determined whether 0.5 sec set as the delay time Tma has elapsed. Then, in step S71, the delay time T
When ma has not yet passed, the above step S4
Since the process returns to 5, the above torque application is not performed until the delay time Tma elapses.

Then, in step S71, the delay time T
If it is determined that ma has elapsed, it is determined in step S72 whether 1.0 sec set as the torque application time Tmb has elapsed. Then, this torque application time T
When mb has not yet passed, the above step S46.
As in the first embodiment, torque application is started in step S46, the rotary actuator 23 is locked in step S48, the lock time S is waited for in step S49, and torque application is stopped in step S50. Then, the process returns to step S45. In addition, the step S
When the torque application time Tmb has elapsed at 72, the process proceeds to step S45 without applying torque.

Therefore, as shown in FIG. 14, the torque application process from step S46 to step S51 is started when the clutch 15 is engaged and the delay time Tma elapses, and the torque application is started after the torque application is started. It will be ended when the time Tmb has elapsed. Since the delay time Tma is set to 0.5 sec and the torque application time Tmb is set to 1.0 sec as described above, the initial 0.5 sec is set while 2 sec is elapsed in step S45.
Is not applied with torque, the torque application is continued for 1.0 sec thereafter, and the torque application is stopped again for the remaining 0.5 sec. That is, in the test by the test apparatus of the present embodiment, similarly to the torque application actually performed on the clutch 15, the clutch 15 is connected and the torque application is started after a predetermined time, and the clutch 15 is disconnected for a predetermined time. Torque application will be stopped.

As described above, in the test apparatus implemented by the clutch facing test apparatus of the second embodiment, the means for connecting the specific clutch 15 at the preset clutch connection pressure P and the connection of the clutch 15 are connected. A means for applying a maximum torque of 30 kg / cm ^{2 to} the clutch 15 at a cycle of 2 Hz after the delay time Tma has elapsed while maintaining the state, and a means for stopping the torque application to the clutch 15 after the torque application time Tmb has elapsed. And a means for disengaging the clutch 15 after a lapse of a predetermined time.

Therefore, in addition to the first embodiment, since the torque is applied to the clutch 15 at the same timing as in the actual use, it is possible to reproduce the disengaged state of the clutch facing 15c more similar to the actual use. Therefore, appropriate improvement measures can be implemented.

<Third Embodiment> FIG. 15 shows a CP in a clutch facing test apparatus according to a third embodiment of the present invention.
FIG. 16 is a flow chart showing the details of the setting processing routine executed by U, FIG. 16 is a flow chart showing the test execution processing routine executed by the CPU in the clutch facing test apparatus of the third embodiment of the present invention, and FIG. 17 is the first embodiment of the present invention. It is a time chart at the time of the test of the test device of the clutch facing which is three examples.

The flowchart of FIG. 15 is a partial modification of the flowchart of FIG. 6 of the first embodiment, and the flowchart of FIG. 16 is a partial modification of the flowchart of FIG. 13 of the second embodiment. It has been changed.
The configuration of the test device of the third embodiment is the same as that of the test device of the first embodiment. Therefore, the difference in processing will be mainly described with reference to FIGS. 15 and 16.

First, the details of the test condition setting processing routine will be described with reference to FIG.

The flowchart of FIG. 15 has steps S81 to S84 added in place of the steps S23 and S24 of the flowchart of the first embodiment shown in FIG. Then, the CPU 34 proceeds from step S22 to step S81, and displays the message "Please input the initial connection pressure" on the liquid crystal display panel 28 in step S81. Then
In step S82, the operator uses the ten-key pad 31 to set the initial connection pressure P.
When 1 is input and the mode change switch 30 is pressed, the process proceeds to step S83, and the message "Please input the final connection pressure" is displayed on the liquid crystal display panel 28. Further, in step S84, when the operator inputs the final connection pressure P2 with the ten keys 31 and presses the mode changeover switch 30, the process proceeds to step S25, and thereafter, the above-mentioned setting process of the connection time Tm1 etc. is continued. ..

Now, suppose that the initial connection pressure P1 is 5 kg / cm ²
However, it is assumed that 12 kg / cm ² is input as the final connection pressure P2 for 5 seconds. Here, the values of both connection pressures P1 and P2 can be set arbitrarily, but normally, the final connection pressure P2 is set to a value larger than the initial connection pressure P1.

The test execution processing routine for the peel test of FIG. 16 will be described.

The test execution processing routine of FIG.
In step S91, when it is confirmed that the actual oil temperature has reached the value set as the oil temperature Te in step S22 by the heating of the heater 3 in step S91, the initial value is set in step S92. Connection pressure P1, final connection pressure P2,
Then, the connection pressure increase rate α is calculated from the clutch connection time Tm1. This connection pressure increase rate α is determined by the clutch connection time Tm1.
The clutch connection pressure is changed from the initial connection pressure P1 to the final connection pressure P
It is the rate of increase when it is increased to 2. In step S93, the connection pressure obtained by adding the connection pressure increase rate α to the initial connection pressure P1 at that time is set in the pressure control valve 10, and in step S94, the switching valve 9 of the clutch connecting / disconnecting hydraulic circuit 1 is switched to operate the clutch. The hydraulic oil from the hydraulic pump 6 is supplied to the connecting / disconnecting actuator 14. As a result, as shown in FIG. 17, the clutch 15 of the vehicular automatic transmission 13 is connected with a connection pressure that gradually increases.

Therefore, as shown in FIG. 17, during the clutch connection, the connection pressure is increased from the initial connection pressure P1 to the final connection pressure P2. Even in actual use, the clutch 15 connection pressure is controlled so as to gradually increase. Therefore, during the test, the clutch connection pressure is adjusted according to the change in the connection pressure in the actual use condition.

As described above, in the test apparatus implemented by the clutch facing test apparatus of the third embodiment, the means for connecting the specific clutch 15 with the initial connection pressure P1 and the connection pressure of the clutch 15 are actually used. The connection pressure is increased according to the connection pressure change in the use condition of No. ² , and a maximum torque of 30 kg / cm ² is applied to the clutch 15 by 2
It comprises means for applying at a cycle of Hz and means for disengaging the clutch 15.

Therefore, in addition to the first embodiment, the clutch connection pressure during the test is adjusted in accordance with the change in the connection pressure under the actual use condition, so that the clutch facing 15c which is closer to the actual use is separated. The state can be reproduced, and appropriate improvement measures can be implemented.

<Fourth Embodiment> FIG. 18 shows a CP of a clutch facing test apparatus according to a fourth embodiment of the present invention.
FIG. 19 is a flow chart showing the details of the setting processing routine executed by U, FIG. 19 is an explanatory view showing the display of the liquid crystal display panel in the clutch facing test apparatus which is the fourth embodiment of the present invention, and FIG. 20 is the fourth embodiment of the present invention. FIG. 21 is a flow chart showing a test execution processing routine executed by the CPU in the clutch facing test apparatus as an example, and FIG. 21 is a time chart during the test of the clutch facing test apparatus as the fourth embodiment of the present invention.

The flowchart of FIG. 18 is a partial modification of the flowchart of FIG. 6 of the first embodiment, and the flowchart of FIG. 20 is the flowchart of FIG. 16 of the third embodiment.
This is a partial modification of the flowchart in FIG. The configuration of the test apparatus of the fourth embodiment is the same as that of the test apparatus of the first embodiment. Therefore, the difference in processing will be mainly described with reference to FIGS. 18 and 20.

First, the details of the test condition setting process will be described with reference to FIG. 18. The flowchart of FIG. 18 is replaced with the processes of steps S23 and S24 of the flowchart of the first embodiment shown in FIG. Step S
The processing of 101 and step S102 is added.
Then, the CPU 34 proceeds from the step S22 to the step S101, and in this step S101, as shown in FIG. 19, displays a message "Select a clutch type" on the liquid crystal display panel 28. In step S102, the operator selects the type of the clutch 15 to be tested from the five types of clutches to which the numbers 3 to 7 are assigned in advance, presses the ten key 31 corresponding to the number, and then switches the mode. The switch 30 is pressed. Furthermore,
The CPU 34 proceeds to step S25 and thereafter continues the above-mentioned setting process of the connection time Tm1 and the like.

The ROM 43 is provided with a data table corresponding to each of the five types of clutches.
The clutch connection pressure is determined according to the elapsed time from the start of clutch connection in each data table. Then, as shown in FIG. 21, the change in the clutch connection pressure based on this data table, like the change in the connection pressure during actual use, keeps a low value at the beginning of the connection and then increases rapidly thereafter. It is set to keep high values almost constant.

The test execution processing routine for the peel test of FIG. 20 will be described.

The test execution processing routine of FIG. 20 is shown in FIG.
When it is confirmed that the actual oil temperature has reached the value set as the oil temperature Te in step S22 by the heating of the heater 3 in step S91 shown in step S111, The connection pressure P using the clutch connection time Tm1 as a parameter is read from the data table of the ROM 43 corresponding to the clutch of the type selected in step. In step S112, the connection pressure P at that time is set in the pressure regulating valve 10, and in step S113, the switching valve 9 of the clutch connecting / disconnecting hydraulic circuit 1 is switched to operate the clutch connecting / disconnecting actuator 14 from the hydraulic pump 6. Supply oil. As a result, as shown in FIG. 21, the connection pressure of the clutch 15 of the vehicle automatic transmission 13 is matched with the connection pressure based on the data table.

Therefore, as shown in FIG. 21, the connection pressure during the clutch connection corresponds to the change in the connection pressure during actual use.

As described above, in the test apparatus implemented by the clutch facing test apparatus of the fourth embodiment, the means for connecting the specific clutch 15 at the preset clutch connection pressure P and the connection between the clutch 15 and each other. The pressure is increased based on the data table stored in the ROM 43 in accordance with the connection pressure change in the actual use condition, and a means for applying a maximum torque of 30 kg / cm ^{2 to} the clutch 15 at a cycle of 2 Hz, And means for disengaging the clutch 15.

Therefore, in addition to the first embodiment, the clutch connection pressure during the test is adjusted in accordance with the change in the connection pressure under the actual use condition, so that the clutch facing 15c which is closer to the actual use condition is separated. The state can be reproduced, and appropriate improvement measures can be implemented.

<Fifth Embodiment> FIG. 22 is an explanatory view showing the schematic construction of a clutch facing test apparatus according to a fifth embodiment of the present invention. The overall structure of the test apparatus of the fifth embodiment is the same as that of the test apparatus of the first embodiment. Therefore, the differences will be mainly described.

The difference between the test apparatus of this embodiment and the test apparatus of the first embodiment lies in the clutch connecting / disconnecting hydraulic circuit 1. In this embodiment, an accumulator 51 is provided between the switching valve 9 and the clutch connecting / disconnecting actuator 14 of the vehicle automatic transmission 13 in place of the pressure adjusting valve 10 of the first embodiment.

The hydraulic oil from the hydraulic pump 6 is introduced into the clutch connecting / disconnecting actuator 14 and the accumulator 51 in accordance with the switching operation of the switching valve 9 of the clutch connecting / disconnecting hydraulic circuit 1. The spring 52 in the accumulator 51 is compressed by hydraulic pressure. Therefore, a rapid increase in the hydraulic pressure to the clutch connecting / disconnecting actuator 14 is suppressed, and as a result, the clutch connecting pressure is
As in the case of the fourth embodiment shown in FIG. 21, the pressure is increased in accordance with the change in connection pressure during actual use.

Therefore, as in the fourth embodiment, the clutch connection pressure during the test is adjusted in accordance with the change in the connection pressure under the actual use condition, so that the disengaged state of the clutch facing 15c more closely approximates the actual use condition. Can be reproduced, and appropriate improvement measures can be implemented.

In the above embodiment, the automatic transmission 1 for a vehicle is
Although the present invention is embodied in a test device and a test device for performing a peeling test of the wet clutch 15 installed in FIG. 3, the present invention is not limited to this, and the clutch peeling test is performed. In addition to the test device and test device, it can be used for various tests such as a life test and a torque transfer characteristic test. Therefore, for example, it can be embodied as a test device and a test device for performing a peeling test of a dry clutch of a manual transmission, or a test device and a test device for testing an industrial clutch other than a vehicle. Is.

The temperature adjusting means of the above-mentioned embodiment is the heater 3 provided in the oil tank 2 of the clutch connecting / disconnecting hydraulic circuit 1.
However, when implementing the present invention,
The automatic transmission 13 for a vehicle is not limited to this.
Any hydraulic oil can be used as long as it can keep the hydraulic oil at a predetermined temperature.
Therefore, for example, the heater 3 is provided in an oil tank for immersing the automatic transmission 13 for a vehicle, and the heater 3
Keeps the hydraulic oil in the oil tank 2 at a predetermined temperature,
The hydraulic oil in the vehicular automatic transmission 13 may be maintained at the same temperature.

The torque applying means of the above embodiment is constructed as a rotary actuator 23 which operates by hydraulic pressure. However, the present invention is not limited to this, and the automatic transmission for a vehicle is not limited to this. Input shaft 13
It is only necessary that the torque can be periodically applied to the a and the output shaft 13b. Therefore, for example, the torque applying means may be configured as an electric motor, and the motor may be connected to the output shaft 13b of the transmission 13 to apply torque.

As described above, in the clutch facing test apparatus of the above-described embodiment, the temperature adjustment for maintaining the working oil in the vehicle automatic transmission 13 having at least the clutch 15, the input shaft 13a or the output shaft 13b at a predetermined temperature. Means 3
A clutch connection / disconnection hydraulic circuit 1 for controlling the supply of hydraulic oil to a specific clutch connection / disconnection actuator 14 provided in the vehicle automatic transmission 13; and the vehicle automatic transmission 13
Of the clutch connecting / disconnecting actuator 14 of the automatic transmission 13 for a vehicle, which controls the clutch applying / disconnecting hydraulic circuit 1 connected to the input shaft 13a or the output shaft 13b to periodically apply torque. The hydraulic oil is supplied to cause the specific clutch 15 to repeatedly perform the connecting / disconnecting operation, and the torque applying means 23 is controlled every time the clutch 15 is connected to the input shaft 13a or the output shaft 13b. And a control means 34 for periodically applying torque.

The temperature adjusting means 3 for keeping the working oil in the vehicle automatic transmission 13 at a predetermined temperature is only required to keep the vehicle automatic transmission 13 at a predetermined temperature by another means. It can be omitted in tests that do not involve.

By the way, the clutch facing test apparatus of the above-mentioned embodiment comprises means for connecting the clutch, means for periodically applying torque to the clutch, and means for disconnecting the clutch, or Means for connecting, means for periodically applying torque to the clutch after a lapse of a predetermined time, means for stopping torque application to the clutch after a lapse of the predetermined time, and means for disconnecting the clutch after the lapse of the predetermined time However, the timing for generating the means for connecting the clutch and the means for periodically applying the torque to the clutch may be such that the torque is applied to the clutch after the connection of the clutch is started.

In particular, in each of the above-described embodiments, the clutch facing 15c is repeatedly connected to the clutch facing 15c at a predetermined connection pressure to cause separation due to compression, and the torque is applied after the connection is started. Peeling and thermal change due to friction and shear occur on the facing 15c, and it becomes possible to perform a test corresponding to the actual operating condition of the clutch. By reproducing the same condition as the clutch facing 15c at the time of use, the clutch facing material etc. Appropriate improvement measures can be implemented. Since the torque is applied at the same timing as the torque application to the actual clutch at the time of the test, it is possible to reproduce the separated state of the clutch facing 15c, which is closer to the actual use,
Appropriate improvement measures can be implemented.

In the clutch facing test apparatus of each of the above-described embodiments, the torque value periodically applied to the clutch is continuously changed as a function of time, the torque value is intermittently changed as a function of time, and the rotation direction is changed. It is also possible to continuously change the torque value, which is alternately reversed, as a function of time.

The vehicle automatic transmission of each of the above embodiments is not limited to one having a complete structure as an automatic transmission that is mounted on a vehicle and functions as an automatic vehicle transmission by itself. Instead, it suffices to have a mechanism capable of engaging and disengaging the clutch and applying torque to the clutch.
In particular, in the present embodiment, the automatic transmission 13 does not necessarily include a torque converter and / or a speed change gear, but the essential configuration of the automatic transmission for a vehicle in which the clutch 15 is mounted on the vehicle is extracted and used. Therefore, the test result has no error caused by the difference in structure.

In the above embodiment, the clutch facing test device has been described, but the transmission 1 of the above embodiment is described.
If 3 is replaced with a brake, it can be used for testing brake shoes and brake pads.

Further, since the vehicle automatic transmission of each of the above-described embodiments uses only the clutch, the vehicle automatic transmission of each of the above-described embodiments can be grasped by the concept of a clutch.

[0110]

As described above, in the clutch facing test apparatus according to the first aspect of the present invention, the operating oil is supplied to the clutch having the input shaft, the output shaft and the clutch facing and the clutch connecting / disconnecting actuator for connecting / disconnecting the clutch. A clutch connecting / disconnecting hydraulic circuit for supply control, a torque applying means connected to an input shaft or an output shaft of the clutch to apply a torque, and the clutch connecting / disconnecting hydraulic circuit are controlled to operate on a clutch connecting / disconnecting actuator of the clutch. It controls the supply of oil to make the clutch engage and disengage, and
Since a control means for controlling the torque applying means to apply a torque to one of the input shaft and the output shaft is provided, the clutch is an automatic transmission for a vehicle actually mounted in a vehicle. Can be used and it is not necessary to process the clutch facing for the test, so the test data becomes the data corresponding to the actual use.
Further, by the torque applying means and the clutch connecting / disconnecting hydraulic circuit, various physical and / or chemical factors such as peeling, shearing force, thermal change, service life, etc. corresponding to the usage state of the clutch facing mounted on the actual clutch can be obtained. The test becomes possible, and appropriate improvement measures can be taken for the facing material etc. based on the test result. In particular, various physical and / or chemical tests such as peeling, shearing force, thermal change, and life can be performed according to the usage state of the clutch facing. Based on the test results, appropriate improvement measures for facing materials, etc. Can be carried out.

According to the clutch facing test apparatus of the second aspect of the present invention, in addition to the effect of the first aspect, temperature adjusting means for holding the working oil of the clutch at a predetermined temperature is added to the configuration of the first aspect. Based on the temperature condition of the clutch installed in the vehicle, the atmosphere of the clutch facing,
Any temperature condition can be created.

A clutch facing test apparatus according to a third aspect of the present invention comprises means for connecting a clutch having a clutch facing, means for periodically applying torque to the clutch, and means for disengaging the clutch. Therefore, the clutch facing is repeatedly connected at a predetermined connection pressure, and a periodic torque is applied at the time of the connection, so that the separation, shearing force, and thermal force corresponding to the usage state of the clutch facing are applied. Various physical and / or chemical tests such as change and life can be performed, and appropriate improvement measures can be taken for the facing material and the like based on the test results.

According to a fourth aspect of the present invention, there is provided a clutch facing test apparatus for connecting a clutch having a clutch facing, a means for periodically applying torque to the clutch after a predetermined time has elapsed, and a means for applying a torque to the clutch after a predetermined time has elapsed. Since a means for stopping the torque application to the clutch and a means for disconnecting the clutch after a lapse of a predetermined time are provided, in addition to the invention of claim 3, during the test, the torque application to the actual clutch is performed. Since the torque is applied at the same timing, a test result of the clutch facing that more closely resembles the actual use can be obtained, and appropriate improvement measures can be taken.

According to a fifth aspect of the present invention, there is provided a clutch facing test apparatus, wherein means for connecting a clutch having a clutch facing at a predetermined connection pressure and torque is periodically applied to the clutch after the clutch is started to be connected by the means. Means, means for stopping the torque application to the clutch after a lapse of a predetermined time, and means for disconnecting the clutch after a lapse of a predetermined time, the clutch facing, a predetermined connection pressure As it is repeatedly connected and torque is applied after the connection is started, the clutch facing undergoes peeling and thermal change due to friction and shear, and it becomes possible to perform a test corresponding to the actual operating condition of the clutch. Physical and / or chemical such as peeling, shearing force, thermal change, and life depending on the use condition of clutch facing Various tests can and become such, it is possible to carry out accurate improvement measures for facing materials, etc. on the basis of the test results.

According to a sixth aspect of the present invention, there is provided a clutch facing test apparatus in which a means for connecting a clutch having a clutch facing and a connection pressure of the clutch are changed in accordance with an actual use condition, and the torque is periodically changed. Since the means for adding and the means for disengaging the clutch are provided, in addition to the invention of claim 3, at the time of the test, the connection pressure of the clutch is changed in accordance with the change of the connection pressure in the actual use condition. Therefore, it is possible to reproduce the disengaged state of the clutch facing that more closely resembles that in actual use, and it is possible to implement appropriate improvement measures.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a clutch facing test apparatus that is a first embodiment of the present invention.

FIG. 2 is a front view showing a control panel of the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing an electrical configuration of a clutch facing test apparatus according to a first embodiment of the present invention.

FIG. 4 is a flowchart showing a main routine of a clutch facing test apparatus according to a first embodiment of the present invention.

FIG. 5 is a flowchart showing an oil temperature control routine in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 6 is a flowchart showing details of a part of a setting processing routine in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 7 is a flowchart showing details of another part of a setting processing routine in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a display of a liquid crystal display panel in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 9 is an explanatory view showing a display of a liquid crystal display panel in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 10 is a flowchart showing details of a test execution processing routine in the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 11 is a time chart during the test of the clutch facing test apparatus according to the first embodiment of the present invention.

FIG. 12 is a flow chart showing details of a setting processing routine in the clutch facing test apparatus according to the second embodiment of the present invention.

FIG. 13 is a flowchart showing details of a test execution processing routine in the clutch facing test apparatus according to the second embodiment of the present invention.

FIG. 14 is a time chart during the test of the clutch facing test apparatus according to the second embodiment of the present invention.

FIG. 15 is a flow chart showing details of a setting processing routine in the clutch facing test apparatus according to the third embodiment of the present invention.

FIG. 16 is a flowchart showing a test execution processing routine in the clutch facing test apparatus according to the third embodiment of the present invention.

FIG. 17 is a time chart during a test of the clutch facing test apparatus according to the third embodiment of the present invention.

FIG. 18 is a flow chart showing details of a setting processing routine in the clutch facing test apparatus according to the fourth embodiment of the present invention.

FIG. 19 is an explanatory view showing a display of a liquid crystal display panel in a clutch facing test apparatus which is a fourth embodiment of the present invention.

FIG. 20 is a flow chart of a main part showing a test execution processing routine in a clutch facing test apparatus which is a fourth embodiment of the present invention.

FIG. 21 is a time chart during the test of the clutch facing test apparatus according to the fourth embodiment of the present invention.

FIG. 22 is an explanatory diagram showing a schematic configuration of a clutch facing test apparatus according to a fifth embodiment of the present invention.

FIG. 23 is an explanatory diagram showing a schematic configuration of a conventional clutch facing test device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Clutch connecting / disconnecting hydraulic circuit 3 Heater (temperature adjusting means) 13 Automatic transmission 13a Input shaft 13b Output shaft 14 Clutch connecting / disconnecting actuator 15 Clutch 23 Rotary actuator (torque applying means) 34 CPU (control means)

Claims (6)

[Claims] 1. A clutch having an input shaft, an output shaft, and a clutch facing, a clutch connecting / disconnecting hydraulic circuit for supplying and controlling hydraulic oil to a clutch connecting / disconnecting actuator for connecting / disconnecting the clutch, and an input shaft or an output shaft of the clutch. Connected to the torque applying means for applying a torque, controlling the clutch connecting / disconnecting hydraulic circuit, supplying hydraulic oil to the clutch connecting / disconnecting actuator of the clutch,
A clutch facing separation test device, comprising: a control means for causing a clutch to perform a connecting / disconnecting operation and for controlling the torque applying means to apply a torque to one of the input shaft and the output shaft. .. 2. The peeling test device for a clutch facing according to claim 1, wherein the clutch is provided with a temperature adjusting means for holding the hydraulic oil of the clutch at a predetermined temperature. 3. A means for connecting a clutch having a clutch facing at a predetermined connection pressure, a means for periodically applying torque to the clutch while maintaining the connection state of the clutch, and a means for disconnecting the clutch. A testing device for clutch facing, comprising: 4. A means for connecting a clutch having a clutch facing at a predetermined connection pressure, a means for periodically applying torque to the clutch after a predetermined time period while maintaining the connection state of the clutch, and a predetermined time period. A testing device for clutch facing, characterized by further comprising means for stopping the application of torque to the clutch and means for disengaging the clutch after a predetermined time has elapsed. 5. A means for connecting a clutch having a clutch facing at a predetermined connection pressure, a means for periodically applying torque to the clutch after starting the connection of the clutch of the first means, and after a predetermined time has elapsed, A clutch facing test apparatus comprising: a unit that stops applying torque to the clutch; and a unit that disconnects the clutch after a predetermined time has elapsed. 6. A means for connecting a clutch having a clutch facing at a predetermined connection pressure, the connection pressure of the clutch being changed in accordance with the change of the connection pressure in an actual use condition, and the torque being periodically applied to the clutch. And a means for disengaging the clutch, and a testing device for clutch facing.