JP7427515B2 - Clutch abnormality diagnosis device and clutch abnormality diagnosis system - Google Patents

Description

The present invention relates to a clutch abnormality diagnosis device and a clutch abnormality diagnosis system.

For example, Patent Document 1 describes a device that automatically controls the clutch of an automatically changing manual transmission mounted on a vehicle. This device controls the clutch so that the clutch transmission torque characteristics are in a predetermined state.

Japanese Patent Application Publication No. 2007-139120

Here, in the device for controlling the clutch as described above, the position of the clutch plate in each engagement state of the clutch is learned, and the clutch transmission torque characteristics are controlled to be in a predetermined state. However, if the learned value is abnormal, the clutch cannot be engaged in an appropriate state, resulting in an abnormality in the automatic operation of the clutch.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a clutch abnormality diagnosing device and a clutch abnormality diagnosing system capable of diagnosing an abnormality in automatic operation of a clutch of an automatically changing manual transmission.

The present invention is a clutch abnormality diagnostic device for an automatic transmission manual transmission that learns the position of a clutch plate in each engagement state of the clutch and strokes the clutch plate based on the learned value of the position of the clutch plate. A first collection unit that collects a first learning value that is a learned value of the position of the clutch plate when the clutch plate is put into standby state to start operation, and a first collecting unit that strokes the clutch plate to engage the clutch from the standby state. a second collection unit that collects a second learning value that is a learning value of the position of the clutch plate when the clutch plate is in a predetermined engagement operation state, and based on the collected first learning value and second learning value, An abnormality diagnosis section that diagnoses an abnormality in automatic operation of the clutch.

This clutch abnormality diagnosis device can collect the first learned value and the second learned value of the clutch plate. Thereby, the abnormality diagnosing unit of the clutch abnormality diagnosing device can diagnose an abnormality in the automatic operation of the clutch of the automatic speed change manual transmission by using the collected first learning value and second learning value.

In the clutch abnormality diagnosis device, the engagement operation state is the state in which the clutch starts to engage, and the abnormality diagnosis section determines whether the clutch is automatic or not based on the temporal change in the first learned value and the temporal change in the second learned value. It may also be possible to diagnose operational abnormalities. In this case, the clutch abnormality diagnosis device uses temporal changes in the first learned value and the second learned value to predict whether an abnormality is likely to occur, rather than diagnosing that an abnormality has occurred. It can be diagnosed by In this way, the clutch abnormality diagnosis device can diagnose an abnormality before it occurs in the automatic operation of the clutch.

In the clutch abnormality diagnosis device, the abnormality diagnosis section determines that the amount of change per unit time of the first learned value is larger than the amount of change per unit time of the second learned value, and the amount of change per unit time of the first learned value is larger than the amount of change per unit time of the second learned value. If the difference between the amount and the amount of change per unit time of the second learned value exceeds a predetermined first difference threshold, it may be diagnosed that the automatic operation of the clutch is abnormal. In this case, the clutch abnormality diagnosis device can more appropriately diagnose the presence or absence of an abnormality before an abnormality occurs in automatic operation of the clutch.

In the clutch abnormality diagnosis device, the engagement operation state is a state in which the clutch transmission torque of the clutch is a predetermined reference torque, and the abnormality diagnosis unit determines that the first learned value is closer to the engagement side of the clutch than the second learned value. , and the difference between the first learned value and the second learned value is greater than or equal to a predetermined second difference threshold, it may be diagnosed that the automatic operation of the clutch is abnormal. In this case, the clutch abnormality diagnosis device can more appropriately diagnose that an abnormality has occurred in the automatic operation of the clutch.

The clutch abnormality diagnosis device further includes a notification instruction unit that instructs the notification device to notify the diagnosis result of the abnormality diagnosis unit from a notification device installed outside the vehicle in which the automatic transmission manual transmission is installed. You may be prepared. In this case, the clutch abnormality diagnosis device can notify a worker outside the vehicle of the abnormality in the automatic operation of the clutch by issuing a notification instruction to the notification device.

A clutch abnormality diagnosis system according to the present invention is provided in a vehicle equipped with the above-mentioned clutch abnormality diagnosis device and an automatic transmission manual transmission, and is configured to send a learned value to transmit a first learned value and a second learned value to the clutch abnormality diagnosis device. The learning value transmitting device includes a learning value acquisition unit that acquires a first learning value and a second learning value from a control device that controls an automatic transmission manual transmission every predetermined acquisition period; a transmitting section that transmits the first learned value and the second learned value to the clutch abnormality diagnosing device, and the clutch abnormality diagnosing device receives the first learned value and the second learned value transmitted from the transmitting section. The first collecting section and the second collecting section collect the first learned value and the second learned value received by the receiving section.

In this clutch abnormality diagnosis system, a learning value transmitting device mounted on a vehicle acquires a first learning value and a second learning value from a control device at predetermined acquisition periods, and transmits the acquired values to the clutch abnormality diagnosis device. Can be done. In the clutch abnormality diagnosis device, the first collection unit and the second collection unit collect the first learning value and the second learning value transmitted from the learning value transmitting device. In the clutch abnormality diagnosing device, the abnormality diagnosing unit can diagnose an abnormality in automatic operation of the clutch of the automatic transmission manual transmission based on the collected first learning value and second learning value. In this manner, in the clutch abnormality diagnosis system, an abnormality in automatic clutch operation can be diagnosed on the clutch abnormality diagnosis device side based on various learned values transmitted from the vehicle.

A clutch abnormality diagnosis system according to the present invention includes the above-mentioned clutch abnormality diagnosis device and a notification device provided outside the vehicle.

This clutch abnormality diagnosis system is capable of diagnosing an abnormality in automatic operation of a clutch of an automatic transmission manual transmission. The clutch abnormality diagnosis system can notify an operator outside the vehicle of an abnormality in the automatic operation of the clutch by notifying the diagnosis result from the notification device.

According to the present invention, abnormalities in automatic clutch operation can be diagnosed.

FIG. 1 is a diagram showing a schematic configuration of the entire clutch abnormality diagnosis system according to the embodiment. FIG. 2 is a block diagram showing the configuration of a learning value transmitting device mounted on a vehicle. FIG. 3(a) is a schematic diagram showing the configuration of the clutch. FIG. 3(b) is a diagram showing the position of the clutch plate in each engagement state of the clutch. FIG. 4 is a graph showing temporal changes in the standby learning value and the connection start learning value. FIG. 5 is a block diagram showing the configuration of the clutch abnormality diagnosis device. FIG. 6 is a graph showing a state in which the standby learning value and the connection start learning value are reversed. FIG. 7 is a block diagram showing the configuration of the notification device installed at the vehicle management station. FIG. 8 is a flowchart showing the flow of processing in which the clutch abnormality diagnosis device diagnoses abnormality in automatic operation of the clutch.

Embodiments of the present invention will be described below with reference to the drawings. In each figure, the same or corresponding elements are given the same reference numerals, and redundant explanations will be omitted.

As shown in FIG. 1, the clutch abnormality diagnosis system 100 is a system for diagnosing an abnormality in the automatic operation of a clutch 26 (see FIG. 2) of an automated manual transmission 25 mounted on a vehicle V. . The diagnosis result is notified from the notification device 30 provided at the vehicle management station S. The automatic transmission manual transmission 25 will be referred to as AMT 25 hereinafter. The clutch abnormality diagnosis system 100 includes a clutch abnormality diagnosis device 10, a learned value transmitting device 20, and a notification device 30.

The clutch abnormality diagnosis device 10 is installed at a location other than the vehicle V. The clutch abnormality diagnosis device 10 collects learned values of the clutch plate position transmitted from the learned value transmitting device 20 of the vehicle V via the network N, and automatically operates the clutch 26 of the AMT 25 based on the collected learned values. Diagnose abnormalities. Although only one vehicle V is shown in FIG. 1, the clutch abnormality diagnosis device 10 can collect learning values transmitted from a plurality of vehicles V. The clutch abnormality diagnosis device 10 can diagnose, for each of the plurality of vehicles V, an abnormality in the automatic operation of the clutch 26 of the AMT 25 mounted on each vehicle V.

Specifically, as shown in FIG. 2, the learned value transmitter 20 mounted on the vehicle V includes a transmitter 21 and a transmitter unit 22. The vehicle V also includes an AMT 25 that converts the rotational speed of the output shaft of the engine. The AMT 25 includes a clutch 26 and a control device 27 that controls the operation of the clutch 26. The clutch 26 includes a clutch plate 26a and a flywheel 26b, as shown in FIG. 3(a). The clutch 26 switches between a state in which the output shaft of the engine and the transmission mechanism within the AMT 25 are connected and a state in which the connection is released.

The control device 27 operates the clutch 26 by controlling an actuator that strokes the clutch plate 26a. Further, the control device 27 learns the position of the clutch plate 26a in each engagement state of the clutch 26 so that the clutch transmission torque characteristics are in a predetermined state, and controls the clutch plate 26a based on the learned value of the position of the clutch plate 26a. The clutch 26 is engaged by stroking the plate 26a.

Here, as shown in FIG. 3(b), each engagement state of the clutch 26 includes a standby state, a state where the clutch 26 starts to be engaged (an engagement operation state), and a state where the clutch transmission torque is at a first torque value. Contains the state (fastening operation state). Further, each engagement state of the clutch 26 includes various states other than the above-mentioned states, such as a state where the clutch transmission torque is a second torque value. The control device 27 uses a well-known method to learn the position of the clutch plate 26a in each engagement state so that the clutch transmission torque characteristics are in a predetermined state.

Note that the standby state is a state when the clutch plate 26a is placed in a standby position in order to start the engagement operation of the clutch 26. The state in which the clutch 26 begins to engage and the state in which the clutch transmission torque is the first torque value is a state in which the clutch plate 26a is stroked to engage the clutch 26 from the standby state. The state in which the clutch 26 begins to engage is a state in which the clutch plate 26a contacts the flywheel 26b and starts rotating together. The state where the clutch transmission torque is the first torque value is the state where the clutch transmission torque by the clutch 26 is the first torque value (reference torque).

Here, the learned value of the position of the clutch plate 26a when the clutch plate 26a is placed in the standby state is referred to as a "standby learned value (first learned value)." The learned value of the position of the clutch plate 26a when the clutch 26 is at the beginning of engagement is referred to as the "engagement start learned value (second learned value)." The learned value of the position of the clutch plate 26a when the clutch transmission torque is at the first torque value is referred to as a "first torque learned value (second learned value)."

When the learning value is properly learned, as shown in FIG. 4, the position of the clutch plate 26a indicated by the start-of-connection learning value G2 is higher than the position of the clutch plate 26a indicated by the standby learning value G1. The position is close to the flywheel 26b. Similarly, regarding the position of the clutch plate 26a indicated by the first torque learning value, the position of the clutch plate 26a indicated by the first torque learning value is higher than the position of the clutch plate 26a indicated by the engagement start learning value G2. The location is close to . Further, as the learning progresses, the position of the clutch plate 26a indicated by each learning value becomes closer to the flywheel 26b. This is because, for example, the allowance set to absorb individual differences among the AMTs 25 becomes smaller due to learning. Further, as the learning progresses to a certain extent, the position of the clutch plate 26a indicated by each learned value becomes a substantially constant value.

The transmitter 21 is a communication device that communicates with the clutch abnormality diagnosis device 10 via the network N. The transmitter 21 communicates with the clutch abnormality diagnosis device 10 by wireless communication. Note that the transmitter 21 may be configured to communicate with the clutch abnormality diagnosis device 10 through wired communication. The transmitting unit 21 transmits various learned values acquired by a learned value acquiring unit 23 of a transmitting unit 22, which will be described later, to the clutch abnormality diagnosis device 10.

The transmission unit 22 is an electronic control unit including, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). Functionally, the transmission unit 22 includes a learned value acquisition section 23 and a transmission control section 24.

The learning value acquisition unit 23 acquires the standby learning value, the connection start learning value, and the first torque learning value from the control device 27 at every predetermined acquisition period. Here, the predetermined acquisition period is a period during which the operating time of the engine of the vehicle V passes a predetermined time. Further, the acquisition period is sequentially set as the engine operates.

The transmission control section 24 controls the transmission performed by the transmission section 21. The transmission control unit 24 controls the transmission unit 21 to transmit the standby learning value, connection start learning value, and first torque learning value for each acquisition period acquired by the learning value acquisition unit 23 using the transmission unit 21. and transmits it to the clutch abnormality diagnosis device 10. Here, the transmission control unit 24 can collectively transmit a plurality of various learning values such as the standby learning value acquired by the learning value acquisition unit 23. In this case, the transmission control unit 24 may transmit a plurality of learning values at once at predetermined time intervals, or transmit these learning values at once when a predetermined number of learning values have been acquired. You may. However, the transmission control unit 24 may transmit the acquired learning value every time various learning values such as the standby learning value are acquired.

As shown in FIG. 5, the clutch abnormality diagnostic device 10 includes a receiving section 11, a transmitting section 12, and a diagnostic unit 13. The receiving unit 11 is a communication device that communicates with the learning value transmitting device 20 via the network N. The receiving unit 11 receives the learning value for each acquisition period transmitted from the transmitting unit 21 of the learning value transmitting device 20. The transmitter 12 is a communication device that communicates with a notification device 30 provided at the vehicle management station S via the network N. The transmitting unit 12 transmits a notification instruction to the notification device 30 based on an instruction from a notification instruction unit 16 of the diagnosis unit 13, which will be described later.

The diagnostic unit 13 is an electronic control unit including, for example, a CPU, a ROM, and a RAM. The diagnosis unit 13 functionally includes a learned value collection section (first collection section, second collection section) 14, an abnormality diagnosis section 15, and a notification instruction section 16.

The learning value collection unit 14 collects a standby learning value, a connection start learning value, and a first torque learning value, respectively. Here, the learning value collection unit 14 collects from the reception unit 11 the standby learning value, connection start learning value, and first torque learning value received by the reception unit 11 for each acquisition period.

The abnormality diagnosis unit 15 diagnoses an abnormality in the automatic operation of the clutch 26 based on the collected standby learning value, connection start learning value, and first torque learning value. Here, the abnormality diagnosis section 15 can diagnose an abnormality in the automatic operation of the clutch 26 using the following first diagnosis method or second diagnosis method based on the collected learning values such as the standby learning value. can.

(First diagnostic method)
First, a first diagnosis method performed by the abnormality diagnosis section 15 will be explained. In the first diagnosis method, the abnormality diagnosis section 15 uses a standby learning value and a learning value that starts to be connected, among the various learning values collected by the learning value collecting section 14. The abnormality diagnosis unit 15 diagnoses an abnormality in the automatic operation of the clutch 26 based on the temporal change in the standby learning value and the temporal change in the connection start learning value.

Specifically, the abnormality diagnosis unit 15 determines that the amount of change in the standby learned value per unit time is larger than the amount of change in the learned value per unit time, and the amount of change in the standby learned value per unit time is greater than the amount of change in the standby learned value per unit time. If the difference between the connection start learning value and the amount of change per unit time exceeds a predetermined first difference threshold, it is diagnosed that the automatic operation of the clutch 26 is abnormal.

For example, if the amount of change per unit time in the standby learning value is larger than the amount of change per unit time in the learning value that starts to be connected, if this state continues, standby learning will occur as shown in FIG. This is a case where the position of the clutch plate 26a indicated by the value G1 and the connection start learning value G2 may be reversed. If such a learning abnormality causes a connection with the standby learned value G1 and the learned value G2 is reversed, it may become impossible to smoothly stroke the clutch plate 26a toward the flywheel 26b.

The abnormality diagnosis unit 15 may use 0 (zero) as the first difference threshold. In this case, the abnormality diagnosis unit 15 diagnoses that the automatic operation of the clutch 26 is abnormal when the following equation (1) is satisfied.
(Amount of change in connection start learning value per unit time) - (Amount of change in standby learning value per unit time) <0 (1)

Note that the abnormality diagnosis unit 15 may calculate the amount of change of each learned value per unit time based on a predetermined number of recently acquired learned values. Further, the abnormality diagnosis unit 15 may use the learned values learned after the engine operating time exceeds a predetermined time after each learned value is reset.

After diagnosing that the automatic operation of the clutch 26 is abnormal, the abnormality diagnosis unit 15 may cancel the abnormality diagnosis result, for example, when a learning value is reset at a vehicle management station S, which will be described later. .

(Second diagnostic method)
Next, a second diagnosis method performed by the abnormality diagnosis section 15 will be explained. In the second diagnosis method, the abnormality diagnosis section 15 uses the standby learning value and the first torque learning value among the various learning values collected by the learning value collection section 14. The abnormality diagnosis unit 15 determines that the standby learned value indicates a position closer to the engagement side of the clutch 26 than the first torque learned value, and that the difference between the standby learned value and the first torque learned value is a predetermined second torque learned value. If the difference is greater than or equal to the threshold value, it is diagnosed that the automatic operation of the clutch 26 is abnormal.

A case where the standby learned value indicates a position closer to the engagement side of the clutch 26 than the first torque learned value is a state in which the positional relationship between the standby learned value and the first torque learned value is reversed. For this reason, the abnormality diagnosis unit 15 diagnoses an abnormality when the positional relationship between the standby learning value and the first torque learning value is reversed and the difference in position is equal to or greater than the second difference threshold.

Here, the standby learning value indicates a position closer to the engagement side of the clutch 26 than the first torque learning value, and the difference between the standby learning value and the first torque learning value is 0 or more and less than the second difference threshold. There are cases. In this case, the abnormality diagnosis section 15 does not diagnose that the automatic operation of the clutch 26 is abnormal, as described above. However, even in this case, if the first torque learning value does not satisfy the learning conditions, the abnormality diagnosis unit 15 may diagnose that there is an abnormality. This learning condition is a state in which the standard deviation of a predetermined number of first torque learning values obtained most recently is less than a predetermined value, and the engine operating time exceeds a predetermined time. state.

After diagnosing that the automatic operation of the clutch 26 is abnormal, the abnormality diagnosis unit 15 cancels the diagnosis result that the automatic operation of the clutch 26 is abnormal, for example, when a learning value is reset at a vehicle management station S, which will be described later. It's okay. Further, the abnormality diagnosis unit 15 may cancel the diagnosis result indicating an abnormality when the following conditions (1) and (2) are satisfied. Note that the case where conditions (1) and (2) are satisfied is a state in which, after diagnosis of an abnormality is performed, learning of the learned value proceeds normally and the abnormal state is resolved.

Condition (1): The standby learning value indicates a position closer to the engagement side of the clutch 26 than the first torque learning value, and the difference between the standby learning value and the first torque learning value is a predetermined second difference. When the condition of being equal to or higher than the threshold is resolved.
Condition (2): When the most recently acquired first torque learning value indicates a position on the clutch engagement side by a predetermined reference value or more than the most recently acquired first torque learning value. .

The notification instruction unit 16 instructs the notification device 30 so that the diagnosis result of the abnormality diagnosis unit 15 is notified from the notification device 30 provided outside the vehicle V (the notification device 30 provided in the vehicle management station S). Give notification instructions. Here, the notification instruction section 16 transmits the notification instruction to the notification device 30 of the vehicle management station S via the transmission section 12. Further, the notification instruction section 16 issues a notification instruction when the abnormality diagnosis section 15 diagnoses that the automatic operation of the clutch 26 is abnormal.

Next, the notification device 30 provided at the vehicle management station S will be explained. The vehicle management station S is a station that manages vehicles V. The notification device 30 may be, for example, a vehicle V dealer, a maintenance shop, a business office that manages the operation of the vehicle V, or the like. By providing the notification device 30 within the vehicle management station S, a worker working within the vehicle management station S can recognize the content of notifications notified from the notification device 30. That is, even if the vehicle V is not present in the vehicle management station S, the worker in the vehicle management station S can recognize that the automatic operation of the clutch 26 of the AMT 25 mounted on the vehicle V is abnormal.

As shown in FIG. 7, the notification device 30 includes a receiving section 31, a notification control unit 32, and a notification section 33. The receiving unit 31 is a communication device that communicates with the clutch abnormality diagnosis device 10 via the network N. The receiving unit 31 receives the notification instruction transmitted from the clutch abnormality diagnosis device 10.

The notification control unit 32 is an electronic control unit including, for example, a CPU, a ROM, and a RAM. Functionally, the notification control unit 32 includes a notification control section 34. The notification control unit 34 controls the notification performed by the notification unit 33. The notification control unit 34 executes notification through the notification unit 33 based on the notification instruction received by the receiving unit 31. Here, the notification instruction is issued when it is diagnosed that the automatic operation of the clutch 26 is abnormal. Therefore, the notification control unit 34 notifies the automatic operation of the clutch 26 that the automatic operation of the clutch 26 is abnormal through the notification unit 33 based on the received notification instruction.

The notification unit 33 includes, for example, a display device, and is a device that notifies the worker of various information. The notification unit 33 reports that the automatic operation of the clutch 26 is abnormal based on the control of the notification control unit 34. For example, the information notified from the notification unit 33 may include information that the automatic operation of the clutch 26 is abnormal, identification information of the vehicle V, and the like.

Thereby, the worker in the vehicle management station S can recognize that the automatic operation of the clutch 26 of the AMT 25 mounted on the vehicle V is abnormal. Therefore, for example, when servicing the vehicle V, the operator can perform work according to the abnormality diagnosis results, such as resetting various learned values of the AMT 25.

Next, a process flow in which the clutch abnormality diagnosis device 10 diagnoses an abnormality in the automatic operation of the clutch 26 will be described using FIG. 8. Note that the process shown in FIG. 8 is started when the clutch abnormality diagnosis device 10 receives various learned values transmitted from the learned value transmitting device 20. As shown in FIG. 8, when the learning value collection unit 14 of the clutch abnormality diagnosis device 10 collects various learning values transmitted from the learning value transmitting device 20, the abnormality diagnosis unit 15 An abnormality in the automatic operation of the clutch 26 is diagnosed (S101). Here, the abnormality diagnosis section 15 diagnoses the abnormality using the first diagnosis method or the second diagnosis method described above.

When the abnormality is diagnosed as an abnormality in the automatic operation of the clutch 26 (S102: YES), the notification instruction unit 16 uses the transmitting unit 12 to issue a notification instruction to the notification device 30 (S103). If the abnormality is not diagnosed as an abnormality in the automatic operation of the clutch 26 (S102: NO), the clutch abnormality diagnostic device 10 ends the current diagnostic process. Then, the clutch abnormality diagnosis device 10 executes the above-described process when the learned value is acquired next time.

As described above, the clutch abnormality diagnosis device 10 collects the standby learning value, the connection start learning value, and the first torque learning value, which are learning values of the position of the clutch plate 26a learned by the control device 27 of the AMT 25. be able to. Thereby, the abnormality diagnosis unit 15 of the clutch abnormality diagnosis device 10 diagnoses abnormality in automatic operation of the clutch 26 of the AMT 25 by using the collected standby learning value, connection start learning value, and first torque learning value. can do.

As a first diagnosis method, the abnormality diagnosis section 15 diagnoses an abnormality in the automatic operation of the clutch 26 based on the temporal change in the standby learning value and the temporal change in the connection start learning value. In this way, the abnormality diagnosis unit 15 uses temporal changes in the standby learning value and the connection start learning value to predict whether an abnormality is likely to occur, rather than diagnosing that an abnormality has occurred. It can be diagnosed by Therefore, the clutch abnormality diagnosis device 10 can diagnose an abnormality before an abnormality occurs in the automatic operation of the clutch.

Further, the abnormality diagnosis unit 15 uses the first diagnosis method to specifically determine that the amount of change per unit time of the standby learning value is larger than the amount of change per unit time of the learning value that starts to be connected, and that the amount of change per unit time of the standby learning value is When the difference between the amount of change in the value per unit time and the amount of change in the learned value per unit time exceeds a predetermined first difference threshold, it is diagnosed that the automatic operation of the clutch 26 is abnormal. In this case, the clutch abnormality diagnosis device 10 can more appropriately diagnose the presence or absence of an abnormality before an abnormality occurs in the automatic operation of the clutch 26.

As a second diagnosis method, the abnormality diagnosis unit 15 determines that the standby learning value indicates a position closer to the engagement side of the clutch 26 than the first torque learning value, and that the standby learning value and the first torque learning value are different from each other. If the difference from the torque learning value is greater than or equal to a predetermined second difference threshold, it is diagnosed that the automatic operation of the clutch 26 is abnormal. In this case, the clutch abnormality diagnosis device 10 can more appropriately diagnose that an abnormality has occurred in the automatic operation of the clutch 26.

The clutch abnormality diagnosis device 10 further includes a notification instruction section 16 that issues a notification instruction to the notification device 30. In this case, the clutch abnormality diagnosis device 10 can notify a worker or the like outside the vehicle V of the abnormality in the automatic operation of the clutch 26 by instructing the notification device 30 to notify.

In the clutch abnormality diagnosis system 100, the learned value transmission device 20 mounted on the vehicle V acquires the standby learned value, the connection start learned value, and the first torque learned value from the control device 27 of the AMT 25, and transmits the learned value to the clutch abnormality diagnosis system. It can be sent to 10. In the clutch abnormality diagnosis device 10, the learned value collection unit 14 collects the standby learned value, the connection start learned value, and the first torque learned value transmitted from the learned value transmitter 20. Then, in the clutch abnormality diagnosis device 10, the abnormality diagnosis unit 15 diagnoses an abnormality in the automatic operation of the clutch 26 of the AMT 25 based on the collected standby learning value, connection start learning value, and first torque learning value. Can be done. In this way, in the clutch abnormality diagnosis system 100, based on various learning values transmitted from the vehicle V, an abnormality in the automatic operation of the clutch 26 can be diagnosed on the clutch abnormality diagnosis device 10 side.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the abnormality diagnosis unit 15 uses the first torque learning value as the learning value of the position of the clutch plate 26a when performing diagnosis using the second diagnosis method, but the clutch transmission torque is other than the first torque value. The learned value of the position of the clutch plate 26a at the reference torque may be used.

The clutch abnormality diagnosis device 10 may be mounted on the vehicle V. In this case, the receiving unit 11 of the clutch abnormality diagnosis device 10 may receive various learned values from the transmitting unit 21 of the learned value transmitting device 20 without going through the network N. In this way, even if the clutch abnormality diagnosing device 10 is installed in the vehicle V, the clutch abnormality diagnosing device 10 can diagnose abnormalities in the automatic operation of the clutch 26. Further, the clutch abnormality diagnosis device 10 may be provided at the vehicle management station S.

The notification device 30 is not limited to being provided at the vehicle management station S. The notification device 30 may be provided at the same location as the clutch abnormality diagnosis device 10, or may be mounted on the vehicle V. When the notification device 30 is mounted on the vehicle V, the clutch abnormality diagnosis system 100 may notify the occupant of the vehicle V that the automatic operation of the clutch 26 is abnormal.

At least some of the embodiments and various modifications described above may be combined arbitrarily.

10...Clutch abnormality diagnosis device, 11...Receiving section, 14...Learned value collection section (first collection section, second collection section), 15...Abnormality diagnosis section, 16...Notification instruction section, 20...Learned value transmission device, 21 ...Transmission unit, 23...Learned value acquisition unit, 25...AMT (automatic shift manual transmission), 26...Clutch, 26a...Clutch plate, 27...Control device, 30...Notification device, 100...Clutch abnormality diagnosis system, V...Vehicle .

Claims (5)

A clutch abnormality diagnostic device for an automatic transmission manual transmission that learns the position of a clutch plate in each engagement state of the clutch and strokes the clutch plate based on the learned value of the position of the clutch plate,
a first collection unit that collects a first learning value that is a learning value of the position of the clutch plate when the clutch plate is placed in a standby state in order to start an engagement operation of the clutch;
a second collection unit that collects a second learned value that is a learned value of the position of the clutch plate in a predetermined engagement state in which the clutch plate is stroked in order to engage the clutch from the standby state; ,
an abnormality diagnosis unit that diagnoses an abnormality in the automatic operation of the clutch based on the collected first learning value and second learning value,
The engagement state is a state in which the clutch starts to engage,
The abnormality diagnosis unit is configured such that the amount of change per unit time of the first learned value is larger than the amount of change per unit time of the second learned value, and the amount of change per unit time of the first learned value is greater than the amount of change per unit time of the second learned value. A clutch abnormality diagnosis device that diagnoses that the automatic operation of the clutch is abnormal when a difference between the second learned value and the amount of change per unit time exceeds a predetermined first difference threshold. A clutch abnormality diagnostic device for an automatic transmission manual transmission that learns the position of a clutch plate in each engagement state of the clutch and strokes the clutch plate based on the learned value of the position of the clutch plate,
a first collection unit that collects a first learning value that is a learning value of the position of the clutch plate when the clutch plate is placed in a standby state in order to start an engagement operation of the clutch;
a second collection unit that collects a second learned value that is a learned value of the position of the clutch plate in a predetermined engagement state in which the clutch plate is stroked in order to engage the clutch from the standby state; ,
an abnormality diagnosis unit that diagnoses an abnormality in the automatic operation of the clutch based on the collected first learning value and second learning value,
The engagement operation state is a state in which the clutch transmission torque of the clutch is a predetermined reference torque,
The abnormality diagnosis unit is configured such that the first learned value indicates a position closer to the engagement side of the clutch than the second learned value, and the difference between the first learned value and the second learned value is predetermined. A clutch abnormality diagnosing device that diagnoses that automatic operation of the clutch is abnormal when the difference is equal to or greater than a second difference threshold. The present invention further comprises a notification instruction unit that instructs the notification device to notify the diagnosis result of the abnormality diagnosis unit from a notification device provided outside the vehicle in which the automatic transmission manual transmission is mounted. Clutch abnormality diagnosis device according to item 1 or 2 . A clutch abnormality diagnosis device according to any one of claims 1 to 3 ,
a learned value transmitting device that is provided in a vehicle equipped with the automatic transmission manual transmission and that transmits the first learned value and the second learned value to the clutch abnormality diagnosis device;
Equipped with
The learned value transmitting device includes:
a learned value acquisition unit that acquires the first learned value and the second learned value from a control device that controls the automatic speed manual transmission at each predetermined acquisition period;
a transmitter that transmits the acquired first learning value and second learning value to the clutch abnormality diagnosis device;
has
The clutch abnormality diagnosis device includes a receiving unit that receives the first learned value and the second learned value transmitted from the transmitting unit,
The first collecting section and the second collecting section collect the first learning value and the second learning value received by the receiving section, the clutch abnormality diagnosis system. A clutch abnormality diagnosis device according to claim 3 ;
the notification device provided outside the vehicle;
Clutch abnormality diagnosis system.

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