KR102240367B1 - Apparatus and method for transmitting and receiving of fault imformation of automatic transmission, computer-readable storage medium and computer program - Google Patents

Abstract

An embodiment of the present invention is to provide an apparatus and method for transmitting and receiving fault information of an automatic transmission for effectively transmitting and receiving fault diagnosis information of a transmission controller. According to an embodiment of the present invention, an apparatus for transmitting and receiving fault information of an automatic transmission may comprise: a failure information receiving unit for receiving a plurality pieces of failure diagnosis information including the presence or absence of a failure from a transmission controller; a failure information processing unit for generating a plurality of messages in which the plurality pieces of failure diagnosis information is divided and stored in a predetermined number; and a failure information transmitting unit for transmitting the plurality of messages to an engine controller or a vehicle controller at regular time intervals according to a predetermined order.

Description

Device and method for transmitting and receiving fault diagnosis information of automatic transmission, computer-readable recording medium and computer program {APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING OF FAULT IMFORMATION OF AUTOMATIC TRANSMISSION, COMPUTER-READABLE STORAGE MEDIUM AND COMPUTER PROGRAM}

The embodiment relates to an apparatus and method for transmitting and receiving failure information of an automatic transmission for transmitting failure diagnosis information of an automatic transmission.

Recently, the use of electronically controlled automatic transmissions is increasing to improve the performance and operability of military tracked vehicles such as tanks and armored vehicles. In order to protect the military automatic transmission operated at high speed/high torque in a harsh environment and ensure the safety of occupants, the electronic control device of the automatic transmission (hereinafter referred to as the shift controller) should be prepared for failure by checking the occurrence of the automatic transmission from time to time. . In addition, it should be possible to protect the engine and vehicle by quickly transmitting the fault diagnosis result to the engine controller, vehicle controller, and display.

The transmission controller collects signals from various sensors (gear selector, brake pedal sensor, transmission speed sensor, pressure sensor, various switches, etc.) installed in the driver's seat and transmission, controls a number of solenoid valves, and automatically performs shifting. There are as many as hundreds of failures determined from signals collected by the transmission controller, including electrical disconnection/short failure, abnormal sensor signal failure, and mechanical transmission failure. A failure may occur only one failure at a time, or several failures may occur at the same time. In general, fault diagnosis results are transmitted to other controllers using communication such as CAN (Controller Area Network).

There is a method of using a variable message as a method for transmitting and receiving a fault diagnosis result between the transmission and the other controllers in a situation in which a number of faults can occur variably. The variable message is a method in which the length of the message decreases when there are fewer failures, and the length of the message increases when the number of failures increases. The variable message method enables fast transmission/reception when no or less failures occur, but has a disadvantage of slowing the transmission/reception speed as the message length increases as the number of failures increases. If the length of the message is increased, transmission of other messages is blocked until the message transmission is completed, and there is a concern that transmission of important messages may be delayed.

In order to solve the above-described problem, an object of the embodiment is to provide an apparatus and method for transmitting and receiving failure information of an automatic transmission for effectively transmitting and receiving failure diagnosis information of a transmission controller.

The apparatus for transmitting and receiving failure diagnosis information of an automatic transmission according to an embodiment includes a failure information receiving unit receiving a plurality of failure diagnosis information including the presence or absence of a failure from a transmission controller, and a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number. It may include a failure information processing unit for generating a, and a failure information transmission unit for transmitting the plurality of messages to the engine controller or the vehicle controller at predetermined time intervals in a predetermined order.

The method of transmitting/receiving failure diagnosis information of an automatic transmission according to an embodiment includes the steps of receiving a plurality of failure diagnosis information including the presence or absence of a failure from a transmission controller, and generating a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number. And assigning an order to the plurality of messages, and transmitting the plurality of messages to an engine controller or a vehicle controller according to a predetermined order at predetermined time intervals.

According to the embodiment, a large amount of failure state information generated by a shift controller in a tracked vehicle can be quickly propagated without delaying transmission and reception of other important communication messages.

In addition, according to the embodiment, when a new fault message is generated in a state in which messages are sequentially transmitted, all fault state information occurring in the transmission can be quickly and effectively transmitted to other controllers without delaying transmission and reception of other important messages. .

1 is a block diagram showing the configuration of a tracked vehicle including an apparatus for transmitting and receiving failure information of an automatic transmission according to an embodiment.
2 is a block diagram showing a configuration of an apparatus for transmitting and receiving fault information of an automatic transmission according to an embodiment.
3 is a diagram showing the structure of a message.
4 is a diagram illustrating a process of sequentially transmitting failure state information.
5 is a diagram illustrating a process of transmitting an additional message when a new failure occurs.
6 to 8 are flowcharts illustrating a method of transmitting and receiving failure information of an automatic transmission according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings.

1 is a block diagram showing the configuration of a tracked vehicle including a device for transmitting and receiving fault information of an automatic transmission according to an embodiment, and FIG. 2 is a block diagram showing the configuration of a device for transmitting and receiving fault information of an automatic transmission according to an embodiment. 3 is a diagram showing the configuration of a message, FIG. 4 is a diagram showing a process of sequentially transmitting fault status information, and FIG. 5 is a diagram showing a process of transmitting an additional message when a new fault occurs.

Referring to FIG. 1, a shift controller 10, an engine controller 20, and a vehicle controller 30 are provided inside the tracked vehicle 1, and the shift controller 10, the engine controller 20, and The vehicle controller 30 may be connected through CAN communication.

The transmission controller 10 may collect signals from various sensors mounted on a driver's seat and an automatic transmission, such as a gear selector, a brake pedal sensor, a transmission speed sensor, a pressure sensor, and various switches. The shift controller 10 may control a plurality of solenoid valves so that the tracked vehicle 1 can automatically shift.

The engine controller 20 can control the engine, and the vehicle controller 30 transmits a driver's command, such as starting the engine, to the controller provided in the tracked vehicle 1, and can collect driving information and failure status of the vehicle. have.

A display device (not shown) may be further provided inside the tracked vehicle 1. The display can display various information such as driving information and fault conditions.

A failure information transmission/reception apparatus 100 according to an embodiment may be provided inside the tracked vehicle 1. The failure information transmission/reception apparatus 100 may collect failure diagnosis information of an automatic transmission and provide the collected failure diagnosis information to the engine controller 20 and the vehicle controller 30. The failure information transmission/reception apparatus 100 may be connected to the shift controller 10, the engine controller 20, and the vehicle controller 30 through CAN communication. Here, the fault information transmission/reception apparatus 100 may be included in the shift controller 100 and may be formed in a separate configuration from the shift controller 100.

As shown in FIG. 2, the apparatus 100 for transmitting and receiving failure information according to the embodiment may include a failure information receiving unit 110, a failure information processing unit 130, and a failure information transmitting unit 150.

The failure information receiving unit 110 may receive failure diagnosis information from the transmission controller 10. Alternatively, the failure information receiving unit may determine the failure diagnosis information using the information provided from the transmission controller 10, but is not limited thereto. Here, the failure diagnosis information may include the presence or absence of a failure.

The failure information processing unit 130 may generate a plurality of messages. The message may contain a plurality of fault diagnosis information.

If one fault state is expressed as 1 bit of 0 (normal) and 1 (failure), it requires as many bits as the number of faults in order to transmit and receive all fault states. For example, if the number of failures of the automatic transmission is 180, a total of 180 bits are required. The maximum information that can be transmitted in one CAN communication message is 64 bits, so three messages are required to transmit and receive all fault conditions.

However, if all 64 bits are used in the fault state, each message cannot be distinguished. As shown in Fig. 3, a message is generated to use 8 bits as an index number to distinguish the message (M), and the remaining 56 It can be configured to generate a fault diagnosis state using bits. Since 56 failure states can be transmitted per message (M), a total of four messages (M) may be required in case of 180 failures. Here, the number of messages M and the number of fault diagnosis states are not limited thereto, and the number may be changed according to the fault diagnosis state.

The failure information processing unit 130 may assign an order to a plurality of messages (M). As shown in FIG. 4, the first message M1 may include fault diagnosis information from fault numbers 0 to 55. The second message (M2) may include information about diagnosis of failures from 56 to 111. The third message M3 may include fault diagnosis information from 112 to 167. The fourth message M4 may include fault diagnosis information from 168 to 223.

As for the index number of each message (M), the smallest value among the transmitted fault numbers can be used. For example, the first message (M1) is 0, the second message (M2) is 56 (binary 00111000), the third message (M3) is 112 (binary 01110000), and the fourth message (M4) is 168 (binary 10101000) ) Can be. Here, the message M may be generated using a binary number.

The failure information transmission unit 150 may transmit the message M to the engine controller 20 or the vehicle controller 30 according to a predetermined order, for example, an index size order. The message M may be sequentially transmitted at predetermined time intervals. Here, the time interval between the messages M may be kept constant. Here, the time interval may be 1.25 seconds, but is not limited thereto. Here, if there is no change in the failure state, the sequential transmission method can be maintained.

As shown in FIG. 5, if a new fault occurs, a message M corresponding to the fault can be additionally transmitted immediately. For example, if a fault 114 occurs 1 second after transmitting the first message M1, a third message M3 including fault information 114 may be additionally transmitted immediately. After 0.25 seconds, the second message (M2) is sequentially transmitted again. Even when the fault is cleared, the message (M) is additionally immediately transmitted in the same manner to notify that it has been cleared.

If this method is used, all fault status information occurring in the transmission can be quickly transmitted to other controllers without delaying the transmission and reception of other important messages.

6 to 8 are flowcharts illustrating a method of transmitting and receiving failure information of an automatic transmission according to an embodiment.

6, the method of transmitting and receiving failure information of an automatic transmission according to an embodiment includes the steps of receiving a plurality of failure diagnosis information including the presence or absence of a failure from a transmission controller (S100), and a predetermined number of the plurality of failure diagnosis information Generating (S200) a plurality of messages that are respectively divided and stored by the step (S200), the step of giving an order to the plurality of messages (S120), and a predetermined time interval to the engine controller or the vehicle controller according to a predetermined order of the plurality of messages It may include a step of transmitting (S130). Here, the method of transmitting/receiving failure information of the automatic transmission may be performed by an apparatus for transmitting/receiving failure information of the automatic transmission.

The step (S100) of receiving a plurality of failure diagnosis information including the presence or absence of a failure from the transmission controller may be performed by the failure information receiving unit.

The step (S110) of generating a plurality of messages in which a plurality of failure diagnosis information is divided and stored by a predetermined number may be performed by the failure information processing unit.

Here, in the step of generating the message (S110), the message may be generated using 8-bit information. In addition, the index number of the message can be displayed as the smallest value among the fault numbers of the fault diagnosis information.

The step of assigning an order to a plurality of messages may be performed by the failure information processing unit. In the step of assigning an order to a plurality of messages, an order may be assigned to the message using 8-bit and binary information.

Transmitting a plurality of messages to the engine controller or the vehicle controller at predetermined time intervals in a predetermined order (S130) may be performed by the failure information transmission unit.

In the step (S130) of transmitting a plurality of messages to the engine controller or the vehicle controller in a predetermined order at regular intervals, if a failure occurs in the failure diagnosis information included in the message that does not correspond to a predetermined order among the plurality of messages , The message including the fault diagnosis information may be transmitted to the engine controller or the vehicle controller before transmission of the message corresponding to the next transmission sequence.

In more detail, as shown in FIG. 7. i is the fault message number and changes from 1 to the number of messages. According to the above example, it varies from 1 to 4. t is a time variable and increases in seconds with time. If the above example is followed, it varies from 0 seconds to 1.25 seconds.

When the transmission controller starts, i is set to 1 (S200). The first failure message is transmitted (S210) and t is initialized to 0 (S220). If a new fault occurs or the fault that has already occurred is canceled (S230), a corresponding aperiodic message is immediately transmitted (S240). If the time elapses 1.25 seconds (S250), the value of i is increased by 1 (S260), and if i is greater than the maximum value of 4 (S270), i is changed to 1; otherwise, the value of i is maintained and the next Send a fault message. This process continues until the transmission is turned off.

A process of transmitting an aperiodic message when a new fault occurs or an already occurring fault is canceled is shown in FIG. 8.

If there is only one message to be transmitted immediately, only the message needs to be transmitted, but if there are two or more, they must be transmitted sequentially one at a time. If the speed controller's software execution cycle is 10 msec, a message is transmitted once every 10 msec. Here, it can be assumed that the number of fault messages is four.

The variable Ci_k represents the occurrence or cancellation of a fault corresponding to the fault message i determined before k × 10 msec. For example, if C2_3 is True, it means that more than one fault between 56 and 111 occurred or cleared before 30 msec.

First, for i from 1 to 4, the Ci_2 value is assigned to the Ci_3 variable, the Ci_1 value is assigned to the Ci_2 variable, and the Ci_0 value is assigned to the Ci_1 variable, and the Ci_0 variable is set to False (S300). This is a process of updating values prior to 10 msec, 20 msec, and 30 msec before updating the Ci_0 value. After completing the update, update the value of Ci_0 according to the fault that occurred or canceled. For example, if failures 100 and 114 newly occur, the variables C2_0 and C3_0 are set to True (S310 to S317).

When the determination to transmit each fault message is completed, the message to be transmitted is determined and transmitted. If the condition 1, C1_0, is true, the first failure message is transmitted (S318, S319). Faults 0 to 55 are transmitted as soon as they occur or are cleared. If condition 1 is False and condition 2 is True, failure message 2 is transmitted. Condition 2 becomes True if C2_0 is True or both C1_1 and C2_1 are True (S320, S321). In other words, there is no need to transmit fault message #1, and if fault message #2 needs to be transmitted, message #2 is transmitted. Also, if it was determined that both messages 1 and 2 should be sent before 10 msec, message 1 would have been transmitted before 10 msec, so now message 2 is transmitted.

Similarly, condition 3 is the case that the current message 3 must be sent, message 3 must be sent in duplicate with message 1 or 2 10 msec before, or both 1, 2 and 3 must have been sent before 20 msec. The third message is transmitted (S322, S323).

Finally, condition 4 is now when message 4 needs to be sent, 1, 2, 3 and more than 10 msec before, 2 or more duplicates before 20 msec, or 3 before 30 msec. The fourth message is transmitted (S324, S325).

Various embodiments of the present document include software (eg, a machine-readable storage media) (eg, a memory (internal memory or external memory)) including instructions stored in a machine-readable storage medium (eg, a computer). : Program). The device is a device capable of calling a stored command from a storage medium and operating according to the called command, and may include an electronic device according to the disclosed embodiments. When the command is executed by the control unit, the control unit may perform a function corresponding to the command directly or by using other components under the control of the control unit. Instructions may include code generated or executed by a compiler or interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, non-transitory means that the storage medium does not contain a signal and is tangible, but does not distinguish between semi-permanent or temporary storage of data in the storage medium.

According to an embodiment, a method according to various embodiments disclosed in this document may be provided by being included in a computer program product.

According to an embodiment, as a computer-readable recording medium storing a computer program, an operation of receiving a plurality of failure diagnosis information including the presence or absence of a failure from a speed change controller, and the plurality of failure diagnosis information are stored in a predetermined number, respectively. A method comprising an operation of generating a plurality of messages that are separately stored, an operation of assigning an order to the plurality of messages, and an operation of transmitting the plurality of messages to an engine controller or a vehicle controller according to a predetermined order at predetermined time intervals. It may include an instruction for causing the processor to perform.

According to an embodiment, as a computer program stored in a computer-readable recording medium, an operation of receiving a plurality of failure diagnosis information including the presence or absence of a failure from a speed change controller, and the plurality of failure diagnosis information are stored in a predetermined number, respectively. A method comprising an operation of generating a plurality of messages that are separately stored, an operation of assigning an order to the plurality of messages, and an operation of transmitting the plurality of messages to an engine controller or a vehicle controller according to a predetermined order at predetermined time intervals. It may include an instruction for causing the processor to perform.

Although described above with reference to the drawings and embodiments, those skilled in the art will understand that the embodiments can be variously modified and changed without departing from the technical spirit of the embodiments described in the following claims. I will be able to.

100: fault information transmission and reception device
110: fault information receiving unit
130: fault information processing unit
150: fault information transmission unit

Claims (10)

A failure information receiving unit for receiving a plurality of failure diagnosis information including the presence or absence of a failure from the transmission controller;
A failure information processing unit for generating a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number; And
And a failure information transmission unit for transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined period in a predetermined order,
The message consists of an index indicating a transmission order and the failure diagnosis information corresponding to the index,
When the failure information transmission unit recognizes that a failure has occurred in the failure diagnosis information, the apparatus for transmitting and receiving failure diagnosis information of an automatic transmission immediately transmits the message regardless of the period. The method of claim 1,
Each of the plurality of messages is generated using 8-bit information. The apparatus for transmitting and receiving failure diagnosis information of an automatic transmission. The method of claim 2,
An index number indicating a transmission order of the plurality of messages is displayed as the smallest value among the failure numbers of the failure diagnosis information included in each message. The method of claim 1,
The failure information transmission unit,
Each of the plurality of messages is ordered based on a predetermined index, and the failure information transmitting unit recognizes that a failure has occurred in the failure diagnosis information included in a message different from the predetermined order, and the failure is recognized as the occurrence of the failure. An apparatus for transmitting/receiving failure diagnosis information of an automatic transmission for transmitting the message including failure diagnosis information to the engine controller or a vehicle controller before a message in an earlier order. Receiving a plurality of failure diagnosis information including the presence or absence of a failure from the transmission controller;
Generating a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number;
Assigning an order to the plurality of messages; And
Transmitting the plurality of messages to an engine controller or a vehicle controller in a predetermined order at a predetermined period,
The message consists of an index indicating a transmission order and the failure diagnosis information corresponding to the index,
Transmitting the plurality of messages to an engine controller or a vehicle controller in a predetermined order at a predetermined period,
A method of transmitting and receiving failure diagnosis information of an automatic transmission in which the message is immediately transmitted regardless of the period when it is recognized that a failure has occurred in the failure diagnosis information. The method of claim 5,
In the step of generating the message,
Each of the plurality of messages is generated using 8-bit information. A method of transmitting and receiving failure diagnosis information of an automatic transmission. The method of claim 6,
In the step of generating the message,
The index number indicating the transmission order of the plurality of messages is displayed as the smallest value among the failure numbers of the failure diagnosis information included in each message. The method of claim 5,
In the step of transmitting the plurality of messages to an engine controller or a vehicle controller according to a predetermined sequence at a predetermined period,
Each of the plurality of messages is ordered based on a predetermined index,
In the step of transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined order at regular intervals, when it is recognized that a failure has occurred in the failure diagnosis information included in a message different from the predetermined order, the failure recognized as the failure. A method for transmitting/receiving failure diagnosis information of an automatic transmission for transmitting the message including diagnosis information to the engine controller or the vehicle controller before a message in an earlier order. As a computer-readable recording medium storing a computer program,
The computer program,
Receiving a plurality of failure diagnosis information including the presence or absence of a failure from the transmission controller;
Generating a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number;
Assigning an order to the plurality of messages; And
Including an operation of transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined period according to a predetermined sequence,
The message consists of an index indicating a transmission order and the failure diagnosis information corresponding to the index,
In the step of transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined sequence at a predetermined period, the processor performs an operation of immediately transmitting the message regardless of the period when it is recognized that a failure has occurred in the failure diagnosis information. A computer-readable recording medium containing instructions for causing it to occur. As a computer program stored in a computer-readable recording medium,
The computer program,
Receiving a plurality of failure diagnosis information including the presence or absence of a failure from the transmission controller;
Generating a plurality of messages in which the plurality of failure diagnosis information is divided and stored by a predetermined number;
Assigning an order to the plurality of messages; And
Including an operation of transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined period according to a predetermined sequence,
The message consists of an index indicating a transmission order and the failure diagnosis information corresponding to the index,
In the step of transmitting the plurality of messages to the engine controller or the vehicle controller in a predetermined sequence at a predetermined period, the processor performs an operation of immediately transmitting the message regardless of the period when it is recognized that a failure has occurred in the failure diagnosis information. A computer program containing instructions for causing.

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