JP5588477B2 - Test system - Google Patents

Description

  The present invention relates to a test system for testing a moving body such as a vehicle, a ship, and an airplane or a device used in the moving body.

  2. Description of the Related Art Conventionally, for example, as a test system for automobiles, as shown in Patent Document 1, a plurality of measurement devices (measurement devices) are connected to one measurement management device, and the measurement devices are collectively connected to the measurement management device. The thing which made it manage is known. Moreover, as shown in Patent Document 2, an automatic test management device is provided above the measurement management device, and a test schedule can be determined by the automatic test management device.

  By the way, the measuring device may cause performance degradation due to use and the reliability of measurement accuracy cannot be ensured. Therefore, it is necessary to periodically inspect, calibrate, and maintain. The timing of such inspection may be determined by the test regulations. The maintenance management information of each measurement device is displayed on the display of the measurement management device in a separate window, for example, in a window displaying measurement data.

Japanese Patent No. 3524754 JP 2005-49353 A

  However, if the number of measurement devices connected to the same measurement management apparatus is large, the maintenance management information may not be displayed on the screen of the measurement management apparatus. For example, when the windows are displayed overlapping each other, the maintenance management information is hidden. In this case, the possibility of overlooking maintenance management information increases. For this reason, it may be difficult to perform maintenance management of the measurement device as planned, and the reliability of measurement accuracy may be reduced.

  Such a problem is common to a test device including a measurement device.

  The present invention has been made in view of such problems, and allows maintenance management information that is particularly urgent to be easily and preferentially displayed for all test devices connected to the device management apparatus, The main challenge is to provide a test system that can ensure reliable maintenance and inspection.

That is, the test system according to the present invention is for measuring the exhaust gas of an internal combustion engine, and is connected to one or a plurality of test devices used for the measurement of the exhaust gas so as to be communicable with the test device. A device management apparatus for managing the test device, the device management apparatus can acquire various information output from the test device and can erase, switch or move the information on the display A display unit that displays the sensitivity alarm information indicating a decrease in sensitivity of the test device, accumulated operation time alarm information that is alarm information related to an accumulated operation time of the test device, and a test device For the three alarm information of the inspection date alarm information, which is information indicating the approaching or passing of the inspection date, Three alarm icon form is changed in accordance with to the contents, regardless of the display of the information, which is preferentially displayed, single alarm icon to be displayed by the three alarm icon to set A display area is provided on the display .

  If this is the case, the display unit displays the various information output from the test device when it is displayed, when it is not displayed, or when it is moving within the display. Also displays three alarm icons. Therefore, even if the information from the test device is not displayed, or even if it is difficult to recognize because other display contents overlap with the information, just check the alarm icon. It is possible to check whether the device is in an alarm state.

  In the present invention, “the form changes” means that the shape, size, color, design or picture, character, lighting state (brightness, blinking), etc. of the alarm icon displayed on the display unit is singly. Or, the alarm icon is visually changed by being changed in combination.

  In order to be able to quickly confirm alarm information generated in the entire system, a single alarm icon display area for displaying the three alarm icons as a set is provided on the screen. It is desirable that the configuration of the alarm icon change when the test device enters an alarm state.

  In order to quickly solve the work corresponding to the alarm that has occurred, when the alarm icon is selected and operated, the alarm display is switched to a list display screen in which the alarm is classified according to the location and contents of the occurrence, and the list is displayed. When one of the fields on the list display screen is specified, a schematic diagram of a predetermined unit including the alarm occurrence site is displayed, and the alarm occurrence site is specified and displayed in the schematic diagram. It is desirable that

  In the above configuration, examples of the test device include a measurement device that measures a state quantity of the object. Specifically, the measuring device is provided in an exhaust path of an internal combustion engine and measures exhaust gas flowing through the exhaust path.

  According to the present invention configured as described above, the display unit preferentially displays the alarm icon whose form changes according to the content indicated by the alarm information regardless of the display of the information. The occurrence of an alarm in the test device can be confirmed at any time without any operation.

1 is a schematic configuration diagram of a vehicle performance test system according to an embodiment of the present invention. It is a functional block diagram of the measurement device and the device management apparatus of the embodiment. It is a screen block diagram which shows the plug-in screen of the embodiment. It is a screen block diagram which shows the detailed information screen of the embodiment. It is a screen block diagram which expands and shows the alarm icon area | region of the embodiment. It is a screen block diagram which shows the alarm list display window of the embodiment. It is a screen block diagram which shows the position information window of the embodiment.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 schematically shows the entire vehicle performance test system according to the present embodiment. As shown in the figure, the vehicle performance test system 1 includes a chassis dynamometer 2, an automatic driving device 3, a plurality of test devices (exhaust gas measurement devices) 4, a device management device 5, and the like. The vehicle can be put in a simulated running state on the chassis dynamometer 2 and the performance of the vehicle related to fuel consumption, exhaust gas components, etc. can be tested. Note that the test system 1 can also be applied to a single engine test.

  Each part will be described.

  The chassis dynamometer 2 is configured to be able to run the vehicle VH in a simulated manner in the same state as the actual running by cooperating with the automatic driving device 3.

  The automatic driving device 3 is mounted in the driver's cab of the vehicle VH, and operates the accelerator, the brake, the clutch, and the like so that the vehicle VH can automatically run in one or a plurality of driving modes such as the 10 mode and the LA mode. It is.

  The exhaust gas measuring device 4 (hereinafter also simply referred to as the measuring device 4) is a device used for exhaust gas measurement, for example, exhaust gas configured by assembling one or more gas analysis units as unit devices. In addition to what measures the components, those that perform pretreatment to measure the exhaust gas components, such as a constant volume sampling device, are also included.

In this embodiment, a plurality of types are used as measurement devices. For example, a first measurement device 41 incorporating a plurality of gas analysis units having different measurement principles, a second measurement device 42 as a constant-capacity sampling device, a third measurement device 43 as an EGR rate measurement device, and an ultrasonic flow meter The fourth measuring device 44 or the like. The gas analysis unit is, for example, a FID for measuring THC, a CLD for measuring NOx, NDIR for measuring CO, CO ₂ or the like.

The measuring device 4 measures the amount of each component such as HC, NO _x , CO, and CO ₂ related to the sampled gas, and from the measured value, the performance value of a device constituting the vehicle such as an internal combustion engine or a catalyst, for example, fuel consumption , EGR rate and the like are calculated.

  The measurement device 4 includes a local computer and a device main body 4a that controls the operation mode (measurement mode, calibration mode, purge mode, etc.) and state mode (sleep mode, standby mode, etc.) of the measurement device 4 And a communication unit 4b that receives a command signal from the device management apparatus 5 and transmits operation status information to the device management apparatus 5. The local computer is sensitivity information that is information relating to the sensitivity of the sensor unit, accumulated operation time information that indicates the accumulated operation time of each unit, and inspection date and time that is information for specifying a predetermined inspection date and time of the measurement device 4 An information storage unit 4c that stores specific information and the like is further provided.

  The device management apparatus 5 is configured, for example, by installing a predetermined program in a general-purpose computer. Physically, the device management apparatus 5 includes a CPU, a memory, a display 51, an input reception unit 52 including a keyboard and a mouse, a communication interface, and the like. I have. As shown in FIG. 2, the device management apparatus 5 is configured to exhibit functions as a management main body 53, a communication unit 54, an input reception unit 52, a display unit 55, and the like. The device management apparatus 5 is provided with a communication port, and the measurement device 4 is connected to the device management apparatus 5 so as to be able to communicate with each other by wire or wirelessly.

  Furthermore, the management main body 53 of the device management apparatus 5 sends sensitivity alarm information from each of the measurement devices 41 to 44 based on the sensitivity information that is stored and output in the alarm information storage unit of each of the measurement devices 41 to 44. It has a function of generating the accumulated operation time alarm information based on the output accumulated operation time information and the inspection date / time alarm information based on the inspection date / time specifying information output from each of the measuring devices 41 to 44.

  Sensitivity alarm information has an upper limit value and a lower limit value set as criteria for determining sensitivity information, and is generated in relation to the upper limit value and the lower limit value of the acquired sensitivity information. Specifically, if the acquired sensitivity information is greater than or equal to the upper limit value, no sensitivity alarm information is generated, and if the acquired sensitivity information is less than the upper limit value and greater than or equal to the lower limit value, alarm information indicating that the alarm state is present is generated. If the value is less than the lower limit, alarm information is generated. The alert information is to notify that the sensitivity is decreasing before notifying the alarm. In this embodiment, warning information and warning information are included in the sensitivity alarm information.

  The accumulated operating time alarm information is obtained when the acquired accumulated operating time information is less than a predetermined value compared to the endurance time information of the components of each measuring device 41 to 44, particularly consumable parts. Is generated.

  The inspection date / time alarm information is generated when the acquired date / time identification information is compared with the current date / time, and the date / time of the inspection date / time identification information is close to or exceeds the current date / time. . The term “approaching” includes a case where the inspection date is before the current date and a case where the inspection date matches the current date.

  Furthermore, the management main body 53 creates an alarm list L to be described later based on the generated sensitivity alarm information, accumulated operation time alarm information, and examination date / time alarm information. The alarm list L is created for each measurement device 41 to 44 based on the sensitivity alarm information, the accumulated operation time alarm information, and the inspection date / time alarm information.

  Next, the operation centering on the device management apparatus 5 will be described.

  First, the operator physically connects the measuring device 4 to the device management apparatus 7 after performing various operations (such as piping) related to the measuring device 4.

  On the display 51 of the device management apparatus 5, a screen (hereinafter also referred to as a plug-in screen) as shown in FIG. 3 is displayed as an initial screen by the function of the display unit 55. On the plug-in screen 8, a plurality of device indicators 81 indicating the measurement devices 4 registered in advance are arranged so as not to overlap, and an operation status icon area 10 is arranged below the device indicators 81. Each device indicator 81 is provided with a connection button 82 for connecting to the measurement device 4, a disconnect button 83 for disconnecting the measurement device 4, and a connection state display area 84 indicating the connection state. .

  When the connection button 82 is clicked, a character string “Connected” indicating a state in which communication is possible is displayed in the connection state display area 84 in the device indicator 81. Until the mutual communication is established, the connection state display area 84 displays a character string “Initialization” indicating a state in which the connection is being prepared. Similarly, when the disconnect button 83 is clicked, a character string “Stopped” indicating that the connection is released is displayed in the connection state display area 84.

  If the connection button 82 is clicked when the connector cable is disconnected, or if the connector cable is disconnected during the connection state, a character string “Configuration Mismatch” indicating a connection failure state is displayed in the connection state display area 84. Is displayed.

  In the connected state, a new reconnection button (restart button) 85 is displayed. When the reconnection button 85 is clicked, the communication unit 54 resumes the connection protocol and reconnects.

  In addition, when the measuring device 4 is physically connected to the device management apparatus 5, they may be configured to be able to communicate with each other.

  In this way, when the necessary measurement device 4 is communicably connected to the device management apparatus 5 and performs a predetermined operation, the display unit 55 displays various detailed information display screens 9A on the display 51. The detailed information display screen 9A displays measurement data of the measuring device 4, and various types of information in the operation mode (measurement mode, calibration mode, purge mode, etc.) and state mode (sleep mode, standby mode, etc.). .

  On this detailed information display screen 9A, a device panel window 9 for displaying calibration data, measurement data, etc. by graphs, numerical values, etc. corresponding to various information output from the respective measuring devices 41-44 is displayed on the display unit 55. Is done. The device panel window 9 can display detailed information including measurement results input from the measurement devices 41 to 44 in the form of graphs and numerical values by clicking the display form switching button 12.

  As described above, when each of the measurement devices 41 to 44 is activated, the management main body 53 of the device management apparatus 5 stores the sensitivity information stored in the alarm information storage unit 4c of each of the measurement devices 41 to 44 and the storage operation. Each alarm information is generated from the time information and the examination date specifying information, and the alarm information is reflected on the alarm icon 10. When the acquired sensitivity information, accumulated operation time information, and examination date / time specifying information satisfy the conditions for determining the occurrence of an alarm, the management body 53 generates each alarm information, and the display unit 55 indicates the contents indicated by the alarm information. The form of the alarm icon 10 is changed according to the above.

  The alarm icon 10 is displayed in a single alarm icon display area 11, and includes a sensitivity alarm icon 10a corresponding to sensitivity alarm information, a stored operating time alarm icon 10b corresponding to stored operating time alarm information, and an inspection date and time. It is comprised with the inspection date alarm icon 10c corresponding to alarm information. The alarm icon display area 11 is displayed at the upper part of the screen of the display 51, specifically, the uppermost part of each screen including the plug-in screen 8. Therefore, it is displayed with priority regardless of the display of a window or the like displaying measurement data displayed on each screen. One sensitivity alarm icon 10a, accumulated operation time alarm icon 10b, and inspection date / time alarm icon 10c are set for all the measuring devices 41-44.

  For example, when sensitivity information indicating that the sensitivity of a sensor from the first measurement device 41 has decreased is input to the management main body 53 via the communication unit 54, the management main body 53 is set with the sensitivity information. Compared with the upper limit value and lower limit value, and if the value is less than the upper limit value, warning information or alarm information is output. Accordingly, the display unit 55 changes the form of the sensitivity alarm icon 10a, for example, the color, and displays that the sensitivity alarm has occurred. Since the sensitivity alarm information includes warning information and alarm information, the sensitivity alarm icon 10a displays the state of each sensitivity in different colors corresponding to the information.

  Similarly, the accumulated operation time information is input, the accumulated operation time alarm information is output based on the comparison result with the endurance time information, and the display unit 55 changes the form of the accumulated operation time alarm icon 10b.

  Furthermore, when the inspection date / time specifying information is input and the inspection date / time according to the inspection date / time specifying information is close to the current date / time, or when the inspection date / time is overdue, the inspection date / time alarm information is output, and the display unit 55 The form of the inspection date alarm icon 10c is changed.

  As described above, when any alarm icon 10 displays an alarm, when the icon is selected and operated, for example, clicked, a list is displayed in a list corresponding to the content of the displayed alarm. The alarm list display window G1 to be displayed is displayed. The alarm list display window G1 displays an alarm list L in which alarms are divided according to generation sites and contents.

  When the alarm list L is displayed, an operation is performed on one column highlighted by designating, for example, double-clicking, and a schematic diagram P such as a predetermined gas analysis unit including an alarm occurrence portion is located. It is displayed in the information window G2. In the schematic diagram P, an alarm generation part M is specified and displayed by changing a display form, for example, by changing a color from other parts. Further, below the schematic diagram P, information on a countermeasure method for the alarm is displayed.

  As described above, the sensitivity alarm icon 10a, the accumulated operation time alarm icon 10b, and the examination date / time alarm icon 10c are displayed in the alarm icon display area 11 regardless of the display on the screen 51, and Since the form is changed when an alarm is generated, the alarm generated during the measurement of exhaust gas can always be grasped reliably.

  In this case, an alarm between the sensitivity and the accumulated operation time can be grasped, so that a consumable part such as a sensor whose sensitivity has been lowered and a motor that is about to be replaced can be efficiently maintained. In addition, the inspection date / time alarm enables the regular inspection and adjustment time of the analysis unit required by the exhaust gas regulations to be reliably inspected by the due date. Therefore, the measurement device 4 can always be maintained in a state where the intended measurement can be performed.

  In addition, by operating the alarm icon 10 whose form has changed, an alarm list is displayed, and a schematic diagram P showing an alarm generation site M by specifying and clicking one column listed in the alarm list. Is displayed so that the site where the alarm is generated can be easily recognized visually. For this reason, it is possible to quickly grasp the content and part of the occurrence of the alarm, and to quickly solve the malfunction that causes the alarm.

  In addition, since only the selected alarm occurrence part is indicated by the mark M on the position information window G2, even if there is another trouble occurrence part on the position information window G2, the selected trouble occurrence position can be easily identified. can do.

  The present invention is not limited to the above embodiment.

  The display 71 may be configured by a touch panel type. In this case, instead of the click operation in the above embodiment, the same operation as the click can be performed by touching the screen with a finger or an input pen over the operation buttons such as the connection button 82 and the disconnect button 83. It is.

  In the above-described embodiment, the measurement of the internal combustion engine mounted on the vehicle has been described. However, the performance test may be performed using another device such as an automatic transmission as an object.

  Further, the object to be tested may be a ship or an airplane mounted with an internal combustion engine as in the case of a vehicle, or a single internal combustion engine mounted on them.

  In the above embodiment, the diagram schematically showing the position where the alarm is generated on the position information window is a structural diagram schematically showing the mechanical configuration of one analyzer or a unit composed of a plurality of analyzers. May be.

  Further, in the above embodiment, only the selected alarm occurrence site is configured to be indicated by a mark on the position information window. However, when there are a plurality of alarm generation sites on the same position information window, It may be indicated by a mark.

  Further, in the above embodiment, the alarm list display window and the position information window are displayed separately on the opened windows, but one window is divided into two screens, and the alarm list and the position information are one. You may make it display on a window collectively.

  The test device is not limited to a device for measuring exhaust gas, but also includes an apparatus used for testing a moving body such as a ship or an airplane or a component device thereof, for example, an automatic driving device such as a dynamometer or a robot. The device management apparatus includes not only those that directly manage test devices, but also those that are indirectly managed, such as the automatic test management apparatus in the embodiment.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Vehicle performance test system 4 ... Exhaust gas measurement device 7 ... Device management apparatus 53 ... Management main-body part 55 ... Display part 10 ... Alarm icon 10a ... Sensitivity alarm icon 10b ... Accumulated operation time alarm icon 10c ... Inspection date / time alarm icon VH ... Vehicle

Claims (4)

For measuring the exhaust gas of an internal combustion engine ,
Comprising one or more test devices used for the measurement of the exhaust gas, and a device management apparatus that is communicably connected to the test device and manages the test device;
The device management apparatus has a display unit that acquires various information output from the test device and displays the information on the display so as to be erasable, switchable, or movable.
The display unit displays sensitivity alarm information indicating a decrease in sensitivity of the test device, accumulated operation time alarm information that is alarm information related to the accumulated operation time of the test device, and approaching or passing the inspection date and time of the test device. As for the three alarm information of the inspection date and time alarm information which is the information to be displayed, the three alarm icons whose forms change according to the contents indicated by each alarm information are preferentially displayed regardless of the display of the information. Is,
A test system, wherein a single alarm icon display area for displaying the three alarm icons as a set is provided on a display .   2. The test system according to claim 1, wherein when any of the test devices is in an alarm state, the form of the alarm icon is changed.   When the alarm icon is selected and operated, the screen is switched to a list display screen that displays the list in a list by dividing the alarm according to the location and contents of the alarm. Further, when the user designates one column of the list display screen, the location of the alarm is generated. The test system according to claim 1 or 2, wherein a schematic diagram of a predetermined unit including is displayed, and an alarm occurrence site is specified and displayed in the schematic diagram. Communicatively connected to one or more test devices for measuring the exhaust gas of an internal combustion engine ,
It has a display unit that acquires various information output from the test device and displays the information on the display so that it can be deleted, switched, or moved,
The display unit displays sensitivity alarm information indicating a decrease in sensitivity of the test device, accumulated operation time alarm information that is alarm information related to the accumulated operation time of the test device, and approaching or passing the inspection date and time of the test device. As for the three alarm information of the inspection date and time alarm information which is the information to be displayed, the three alarm icons whose forms change according to the contents indicated by each alarm information are preferentially displayed regardless of the display of the information. Is,
A device management apparatus, wherein a single alarm icon display area for displaying the three alarm icons as a set is provided on a display .