KR100216053B1 - Monitoring method and device of shift control unit in automatic transmission - Google Patents

Abstract

The present invention relates to a method and apparatus for monitoring a can communication automatic transmission shift control unit.

An inverter that receives commercial power and converts it into 24 volts usable in a circuit;

A backlight unit that receives power from the inverter to illuminate light and output power;

A can driver for outputting information from the shift control unit by a can communication method;

A control unit which receives power from the backlight unit, receives all information output from the shift control unit from the can driver, copes appropriately, and outputs a control signal;

A reset unit for resetting the control unit as necessary;

A function switch unit capable of controlling the control unit;

A RAM to help the control unit perform a control operation;

Rom and help the control unit to perform the control operation, and has a program necessary for performing the operation:

A liquid crystal display device receiving a control signal from the control unit and displaying a state of a shift control unit on a screen;

A light emitting display element unit for displaying the opening / closing of the solenoid valves, the damper clutch operating state, the position of the current shift stage, and whether there is an abnormality in the automatic transmission;

It consists of a light emitting display element that displays the volts in analog format for the duty output of the solenoid valve and the output of the throttle opening.

By using the CAN communication method to receive information in units of blocks, the processing speed between the measuring device and the shift control unit is increased to facilitate the development of the shift control unit and to shorten the development time. An apparatus and method for monitoring a can communication automatic transmission shift control unit characterized by an operational feature.

Description

Monitoring Method and Device for Automatic Transmission Transmission Control Unit

1 is a block diagram of a motortering apparatus of a can communication automatic transmission shift control unit according to an embodiment of the present invention.

A) of FIG. 2 is a right side view of the motering device of the can communication automatic transmission shift control unit according to the embodiment of the present invention, and b) of FIG. 2 is a view of the can communication automatic transmission shift control unit according to the embodiment of the present invention. Left side view of the monitoring device.

3 is a flowchart of a monitoring method of a can communication automatic transmission shift control unit according to an embodiment of the present invention.

A), b) of FIG. 4 is a flowchart of a method of use in a text mode of the monitoring method of a can communication automatic transmission shift control unit according to an embodiment of the present invention;

A), b) of FIG. 5 is a flowchart in a graphic mode of a method for monitoring a can communication automatic transmission shift control unit according to an embodiment of the present invention;

6 is a flowchart of a can communication method of a method for monitoring a can communication automatic transmission shift control unit according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

13, 14, 15: Solenoid Valve Analog Meter

16: Throttle Valve Analog Meter 17: Reset Switch

30: power switch

19, 20, 21, 22: Solenoid valve status display light emitting device

23: damper clutch operating state display light emitting device

24, 25, 26, 27, 28: current shift stage display light emitting device

29: LED display for automatic transmission abnormality

The present invention relates to the monitoring of the automatic transmission shift control unit. More specifically, the physical quantity of the automatic transmission from the automatic transmission shift control unit (TCU), that is, the gear rotation speed of each input and output, the shift state, and the hydraulic pressure output from the controller. Detects control duty, damper clutch operation, automatic transmission abnormality, etc. and displays it through LCD screen, light emitting display device and analog meter using CAN communication. The present invention relates to a method and apparatus for monitoring a can communication automatic transmission shift control unit.

Recently, an automatic transmission in which a torque converter and a planetary gear unit and a control unit are combined has reduced the hassle during gear shifting, smooth acceleration and deceleration, excellent low speed oscillation performance, and improved ride comfort. It has been greatly spotlighted for its advantages.

In particular, the automatic transmission has a tendency to increase the shift stage for improved fuel efficiency and performance, and in the case of the hydraulic-controlled automatic transmission, the hydraulic system is very complicated to increase the transmission stage by one stage. The method is rapidly being introduced.

According to the electronic control method, the driving state and the shift state of the vehicle are detected by various sensing units, and the output signal of the sensing unit is input to a transmission control unit (TCU) to control by the shift control unit. The on / off timing of the shift control solenoid valve and the duty ratio of the pressure control solenoid valve are determined, and the shift valve and the pressure control valve operate according to the on / off timing and the duty ratio of each solenoid valve to form various hydraulic paths. Various transmissions and brakes are operated.

In order to develop the shift control unit described above, the state of the shift control unit needs to be measured. Conventionally, RS-232-C serial communication method has been adopted.

However, since the conventional communication method between the shift control unit and the measurement device is a serial communication method, that is, a slow serial communication method, a shift control for receiving a signal from the sensing unit at a high speed and outputting a control signal accordingly. The disadvantage is that it does not adequately indicate the state of the unit.

In addition, it is not fast enough to represent a large amount of data.

Therefore, an object of the present invention is to solve the disadvantages of the prior art, by using the communication by the CAN communication method to speed up the processing speed between the measuring device and the shift control unit, the gear rotation speed of the input, output, shift state The controller detects the amount of hydraulic control duty output from the controller, whether the damper clutch is operating, and whether the automatic transmission is abnormal, and properly displays the state through the LCD, LED, and analog meter. An object of the present invention is to provide a method and apparatus for monitoring a can communication automatic transmission shift control unit that facilitates development and shortens the development time.

The configuration of the present invention to achieve the above object, the inverter is applied to the commercial power supply to convert to 54 volts usable in the circuit, the backlight unit for receiving the power from the inverter to illuminate the device and output power And a can driver for outputting information from the shift control unit by a can communication method, and receiving power from the backlight unit, receiving all information output from the shift control unit from the can driver, and coping appropriately with the control signal. A control unit for outputting, a reset unit for resetting the control unit as necessary, a function switch unit for controlling the control unit, a RAM to help the control unit perform a control operation, and the control unit performs a control operation A ROM having a program necessary for performing a task and a control signal from the controller. A liquid crystal display element for receiving the state of the shift control unit on a screen, a first light emitting display element portion for displaying the opening and closing of the solenoid valves, the damper clutch operating state, the position of the current shift stage, the presence of an abnormality in the automatic transmission, and the solenoid The duty output of the valve and the output of the throttle opening degree are composed of a second light emitting display element portion for displaying the volts in an analog format.

The can driver is characterized by receiving a large amount of information in units of blocks by using the can communication method, the speed is much faster than the serial method.

The liquid crystal display device includes the engine speed, input speed, output speed, vehicle speed, throttle opening amount, current gear position, gear position before shifting, gear lever, mode switch, spark retard electronic control unit, spark rattard electronic control. 15 kinds of information such as unit, oil temperature, battery voltage and solenoid valve status can be selected and viewed on the screen.

The ROM includes a program of a method of receiving information of a shift control device from a control unit and outputting the control signal to a liquid crystal display device, a light emitting display device unit, and an analog display unit.

In addition, the configuration of the monitoring method for a five-speed automatic transmission shift control unit to achieve the above object comprises the steps of initializing the microcomputer to perform the operation, the initialization of the control of the liquid crystal display element to perform the operation, Initializing the CAN communication, displaying the text mode after performing the initialization operation, checking whether the first function key is used while the text mode is displayed, and if the first function key is used, And displaying whether the first function key is used while the graphic mode is displayed.

The displaying of the text mode may include: receiving a control signal from a controller, displaying character information through a liquid crystal display device; controlling the analog display unit by receiving a control signal from the controller; and receiving a control signal from the controller. Controlling the output of the light emitting display unit; checking whether the sixth function key is used during the operation; and using the third and fourth function keys when the sixth function key is used, the position and item of the character information. To freely select, to check whether the second function key was used during the operation, to pause reception of information if the second function key was used, and to use the third function key during the operation. Checking, storing the frozen screen information if the third function key is used, checking whether the fourth function key is used during the operation, and If the 4 function key is used, the method includes reproducing the stored information, and checking whether the second function key is used again after performing the above operation.

The configuration of displaying the graphic mode includes receiving a control signal from a control unit to display a graphic background screen, performing a graphic, receiving a control signal from the control unit, controlling an output of the analog display unit, and Receiving a control signal to control the output of the light emitting display element, checking whether the second function key is used during the operation, suspending the graphic if the second function key is used, and performing the third operation during the operation. Checking whether the function key is used, storing the stopped graphic information if the third function key is used, checking if the fourth function key is used during the operation, and storing if the fourth function key is used. Reproducing graphic information, and checking whether the second function key is used after performing the above steps. It is done.

The configuration of the method for transferring information from the CAN communication shift control unit to the control unit after initializing the CAN communication includes the steps of prohibiting an interrupt from the outside, recognizing the block number of the information, Therefore, the method includes transmitting information to different blocks and returning to the beginning of the program after delivering the information.

When described with reference to the accompanying drawings the most preferred embodiment which can easily implement this invention by the above configuration as follows.

FIG. 1 is a block diagram of a monitoring apparatus of a can communication automatic transmission shift control unit according to an embodiment of the present invention, and FIG. 2A is a view of a monitoring apparatus of a can communication automatic transmission shift control unit according to an embodiment of the present invention. B) of FIG. 2 is a left side view of a monitoring apparatus of a can communication automatic transmission shift control unit according to an embodiment of the present invention, and FIG. 3 is a view of a can communication automatic transmission shift control unit according to an embodiment of the present invention. 4 is a flowchart of a monitoring method, and a) and b) of FIG. 4 are flowcharts of a usage method in a text mode of the monitoring method for a can communication automatic transmission shift control unit according to an embodiment of the present invention. ) Is a flowchart in a graphic mode of a method for monitoring a can communication automatic transmission shift control unit according to an embodiment of the present invention, and FIG. 6 is a can communication automatic transmission shift control unit according to an embodiment of the present invention. The flow chart of the CAN communication method of the monitoring method.

As shown in FIG. 1 and FIG. 2, the configuration of the monitoring device for the CAN communication automatic transmission shift control unit according to the embodiment of the present invention is to convert the commercial power supply from the power switch 30 into 24 volts usable for the circuit. Inverter 1, the backlight unit 2 that receives power from the inverter 1, emits light and outputs power, and receives information from the shift control unit from the connector 18 by a can communication method. The can driver 9 which transmits to the control part 5, and the power from the said back light part 11 are received, all the information output from the shift control unit is received from the can driver 9, responds suitably, and receives a control signal. A control unit 5 for outputting, a reset unit 4 for resetting the control unit 5 with a reset switch 17 as necessary, and six function switches F1 to F6 capable of controlling the control unit 5; ) Feature switch A tooth (3), a RAM (6) to help the control unit (6) to perform a control operation, a ROM to help the control unit (5) to perform a control operation, and a program having a program necessary for performing the task ( 7), the liquid crystal display element which receives the control signal from the control unit 5 and displays the state of the shift control unit on the screen, the opening and closing of the solenoid valves, the damper clutch operating state, the position of the current shift stage, the abnormality of the automatic transmission The light emitting display element unit 12 for displaying the back and the like using eleven light emitting display elements 19 to 29, and the output of the duty output and the throttle opening degree of the solenoid valve through the four instrument panels 13 to 16 in analog format. It consists of an analog display unit 10 for displaying the volts.

The can driver 9 receives a large amount of information in units of blocks by using a can communication method, and the speed is much faster than the serial method.

The liquid crystal display element 11 includes engine speed, input speed, output speed, vehicle speed, throttle opening amount, current gear position, gear position before shifting, gear lever, mode switch, spark retard electronic control unit, spark The electronic control unit, oil temperature, battery voltage, solenoid valve status, etc. are displayed on the screen, and 19 kinds of information can be viewed as necessary.

The ROM 7 receives information of the shift control device from the control unit 5 and outputs the control signal to the liquid crystal display element 11, the light emitting display element unit 12, and the analog display unit 10. It is characterized by including a program.

In addition, as shown in Figure 3, the configuration of the monitoring method for a five-speed automatic transmission shift control unit according to an embodiment of the present invention, the step of initializing the microcomputer to perform the operation (step 1), the liquid crystal for performing the operation Initializing control of the display element 11 (step 2), initializing can communication to perform a job (step 3), displaying a text mode after performing an initialization job (step 4), and text Checking whether the first function key is used while the mode is displayed (step 5), if the first function key (F1) is used, displaying the graphic mode (step 6), and displaying the graphic mode. In step 7 it is checked whether the first function key (F1) is used.

As shown in a) and b) of FIG. 4, the configuration of displaying the text mode (step 4) comprises: receiving character control signals from a controller and displaying character information through the liquid crystal display element 11 ( Step 8), controlling the analog display unit 10 by receiving a control signal from the control unit 5 (step 9), and receiving a control signal from the control unit 5 to control the output of the light emitting display element unit 12. Step (step 10), checking whether the sixth function key F6 is used during the operation (step 11), and when the sixth function key F6 is used, the third and fourth function keys F3, Using step F4) to freely select the position and item of the character information (step 12), checking whether the second function key F2 is used during the operation (step 13), and the second function key ( If F2) is used, the step of pausing the reception of information (step 14) and checking whether the third function key (F3) is used during the operation is performed. Step (15), storing the frozen screen information if the third function key (F3) is used (step 16), and checking whether the fourth function key (F4) is used during the operation (step 17). ), If the fourth function key (F4) is used, regenerating the stored information (step 18), and checking whether the second function key (F2) is used again after performing the above steps (step 19). It is characterized by consisting of.

As shown in a) and b) of FIG. 5, the configuration of displaying the graphic mode (step 6) includes receiving a control signal from the controller 5 to display a graphic background screen (step 20), Receiving a control signal from the controller 5 to perform a graphic (step 21), receiving a control signal from the controller 5 to control the output of the analog display unit 10 (step 22), and from the controller 5 Receiving a control signal to control the output of the light emitting display element unit 12 (step 23), checking whether the second function key F2 is used during the operation (step 24), and the second function key ( If F2) has been used, the step of suspending the graphic (step 25), the step of checking whether the third function key (F3) was used during the operation (step 26), and the stop if the third function key (F3) has been used The stored graphic information (step 27) and checking whether the fourth function key (F4) was used during the operation. Step (28), if the fourth function key (F4) is used, playing back the stored graphic information (step 29), and checking whether the second function key (F2) is used after performing the above steps. Characterized in that (30 steps).

As shown in FIG. 6, after the initialization of the can communication, the configuration of the method for transferring information from the can communication type shift control unit to the control unit 5 includes the step of prohibiting an interrupt from the outside (step 31). Recognizing the block number of the information (step 32), delivering the information to different blocks according to the block number (step 33), and returning to the beginning of the program after transferring the information ( Step 34).

According to an embodiment of the present invention according to the above-described configuration, the action of the mortaring apparatus and method for a five-speed automatic transmission shift control unit according to the present invention is as follows.

When the user turns on the power switch on the right side of the apparatus of the present invention, power is applied to start the operation of the monitoring device and method for the CAN communication 5-speed automatic transmission control unit according to the embodiment of the present invention. When the operation is started, the controller 5 initializes the microcomputer to perform the operation (step 1), initializes the control of the liquid crystal display element 11 (step 2), and initializes the can communication to perform the operation (3). Step), interruption from the outside is prohibited (step 31), and the engine speed, input speed, output speed, vehicle speed, throttle opening amount, current gear position, gear position before shifting, gear lever, Information such as the mode switch, the spark retard electronic control unit, the spark retard electronic control unit, the oil temperature, the battery voltage and the state of the solenoid valve is recognized (step 32). After transmitting the information through the block (step 33), another information is quickly received by the can communication method by the can communication method by the can driver connected to the connector (step 34).

After the initialization operation, the text mode is displayed (step 4), and the character information is displayed through the liquid crystal display device 11 by receiving a control signal from the controller (step 8).

Receiving a control signal from the control section 5, the voltages of the three solenoid valves and the throttle valve are displayed on the analog display section 10 composed of four analog meters 13 to 16 (step 9).

In response to the control signal from the control unit 5, the light emitting display element unit 12 including eleven light emitting display elements includes an on / off state (19 to 22) of the solenoid valve, a damper clutch operating state (23), and a current shift stage ( 24 to 28), there are abnormalities and positions of the state 29 of the automatic transmission (step 10).

Check if the sixth function key (F6) was used during the operation (step 11). If the sixth function key (F6) was used, use the third and fourth function keys (F3, F4) to locate and item the character information. Select freely to obtain information (step 12), and if the sixth function key (F6) is not used, check whether the second function key (F2) is used during the operation (step 13).

If the second function key (F2) is used, the reception of information is paused (step 14). If the third function key (F3) is used after checking whether or not the third function key (F3) is used during the operation (step 15) The still picture information is stored (step 16).

It is checked whether the fourth function key F4 is used during the operation (step 17). If the fourth function key F4 is used, the stored information is reproduced (step 18).

After performing the above steps, it is checked whether the second function key F2 is used again (step 19), and if the second function key F2 is used, character information is displayed again through the liquid crystal display element 11 ( Step 8).

If the first function key F1 is used, the graphic mode is displayed (step 6), the control background 5 receives the control signal and the graphic background screen is displayed (step 20). (Step 21).

The control signal is received from the controller 5 to control the output of the analog display unit 10, and the control signal is received from the controller 5 to control the output of the light emitting display element unit 12 (step 23).

Check if the second function key (F2) was used during the operation (step 24), if the second function key (F2) was used, suspend the graphic (step 26), and perform the third function key (F3) during the operation. In step 26, if the third function key F3 is used, the stopped graphic information is stored (step 27).

Check whether the fourth function key F4 is used during the operation (step 28), and if the fourth function key F4 is used, play back the stored graphic information (step 29), and perform the second step after performing the above steps. Check if the function key (F2) is used (step 30), and if so, perform graphics again (step 21).

In addition, it is checked whether the first function key F1 is used while the graphics mode is displayed (step 7), and if so, the mode goes to the text mode (step 4).

As described above, in the embodiment of the present invention, by using the CAN communication method, information is received in units of blocks, thereby speeding up the processing speed between the measuring device and the shift control unit, thereby increasing the number of rotations of the input and output, It detects the shifting status, the amount of hydraulic control duter output from the controller, the damper clutch operation, the abnormality of the automatic transmission, etc., and displays the status properly through the LCD, the light emitting display, and the analog meter. It is possible to provide a method and apparatus for monitoring a can communication automatic transmission shift control unit having an effect of facilitating the development of the unit and reducing the development time.

Claims (8)

Can inverter that receives commercial power and converts it into 24 volts that can be used in a circuit, a backlight unit that receives power from the inverter to illuminate the device and outputs power, and information input from a shift control unit. A can driver to be output by the can driver, a control unit for receiving power from the backlight unit, receiving all information output from the shift control unit of the vehicle from the can driver, and coping appropriately, and outputting a control signal; A reset unit for resetting, a function switch unit for transmitting a user's command to the control unit, a RAM serving as a memory for the control unit to perform a control operation, and a program required for performing the operation for the control unit to perform a control operation. ROM of the shift control unit receives control signals from the control unit. And a light emitting display element for displaying the opening of the solenoid valves, the damper clutch operating state, the position of the current shift stage, the presence or absence of an automatic transmission, the duty output of the solenoid valve, and the output of the throttle opening. Monitoring device for a can communication automatic transmission shift control unit. The monitoring device of the can communication automatic transmission shift control unit according to claim 1, wherein the can driver is capable of receiving a large amount of information in units of blocks by a can communication method. 2. The liquid crystal display device as claimed in claim 1, wherein the liquid crystal display device includes an engine speed, an input speed, an output speed, a vehicle speed, an throttle opening amount, a current gear position, a gear position before a shift, a gear lever, a mode switch, and a spark retard electronic control unit. Can communication automatic display of 15 of the 19 control information transmitted from the shift control unit to the status display of the spark rattard electronic control unit, oil temperature, battery voltage and solenoid valve Monitoring device for transmission shift control unit. The CAN communication automatic transmission of claim 1, wherein the ROM includes a method of outputting information of the shift control device to a liquid crystal display device, a light emitting display device, and an analog display by receiving control signals from a control unit. Monitoring device of the control unit. Initializing the control unit to perform a task; initializing the liquid crystal display device to perform a task; initializing the can driver to perform a task; displaying a text mode after performing an initialization task; Is displayed when the first function key is used, the graphics mode is displayed when the first function key is used, and the step is used to check whether the first function key is used when the graphics mode is displayed. Monitoring method for a can communication 5-speed automatic transmission shift control unit characterized in that the load. The method of claim 5, wherein the displaying of the text mode comprises: receiving a control signal from a controller, displaying character information through a liquid crystal display device, and controlling the analog display unit by receiving a control signal from the controller; Controlling the output of the light emitting display element by receiving a control signal from the controller; checking whether the sixth function key is used during the operation; and using the third and fourth function keys when the sixth function key is used. Step of arbitrarily selecting the position and item of the text information, checking whether the second function key was used during the work, stopping the reception of the information if the second function key was used, and performing the work. Checking whether the third function key was used during the operation, saving the frozen screen information if the third function key was used, and using the fourth function key during the operation. Checking whether the sixth function key has been used; reproducing the stored information; and checking whether the third function key is used again after performing the above steps. How to monitor the control unit. The method of claim 5, wherein the displaying of the graphic mode comprises: displaying a graphic background screen by receiving a control signal from a controller, performing a graphic, and controlling an output of the analog display unit by receiving a control signal from the controller; Controlling the output of the light emitting display element unit by receiving a control signal from the controller; checking whether the second function key is used during the operation; suspending the graphic if the second function key is used; Checking whether the third function key was used during the operation, storing the stopped graphic information if the third function key was used, checking whether the fourth function key was used during the operation, and the fourth function. Playing the stored graphic information if the key is used, and checking whether the second function key is used after performing the above steps. Monitoring method for an automatic transmission shift control unit can communicate, characterized in that that. The method of claim 6 or 7, wherein the control unit further comprises receiving information from the shift control unit through the can driver by inputting the first to sixth function keys. The configuration includes the steps of prohibiting an interrupt from the outside, recognizing the block number of the information, transmitting the information to different blocks according to the block number, and returning the information to the beginning of the program after passing the information. Monitoring method of a can communication five-speed automatic transmission shift control unit, characterized in that consisting of a step.