JP3828129B2 - Automotive exhaust gas measurement system - Google Patents

Description

  The present invention relates to an automobile exhaust gas measurement system capable of automatically measuring exhaust gas discharged from an automobile engine.

As an automobile exhaust gas measurement system for measuring components such as hydrocarbons (HC), nitrogen oxides (NO _x ), carbon monoxide (CO), carbon dioxide (CO ₂ ) contained in automobile engine exhaust gas, a chassis has been conventionally used. The vehicle mounted on the dynamo device is driven by the vehicle automatic driving device according to the driving mode, the exhaust gas discharged at that time is sampled by the constant volume sampling device, and the collected sample gas is collected into a plurality of different measurement principles. Some of them are supplied to a gas measuring device equipped with a gas analyzer to measure each of the components, and the measurement results are managed by an automobile exhaust gas measurement management device.

  Conventionally, however, the process of stopping the system before an abnormal situation occurs in an emergency is not always complete, and it is too late if the system was stopped after an accident occurred. For example, if the floor leading to the underground pit of the test room where the car is housed has an inspection port where workers can enter and exit, but the cover is removed and the inspection port is open, it is not normal. Although there is no, if the worker enters and exits the inspection port while the system is in operation, the underground pit contains a roller for mounting the driving wheel of the car, so the worker may be caught in this and an accident may occur There is.

  In addition, for example, a slight artificial setting error such as the sensor input switch not turned on could not be detected before the system was started (before the test), so the setting error was detected after the test and the test data became invalid. May end up.

  Further, as shown in FIG. 2, in the upstream portion of the exhaust gas flow channel 13, a sampling state in which the exhaust gas G from the exhaust pipe 8c is sent to the sampling blower 17 side, and the exhaust gas G from the exhaust pipe 8c is sent to the blower 17 side. Exhaust gas sampling / exhaust direct switching device 21b (shown by a two-dot chain line) that is automatically switched to a direct exhaust state in which exhaust is performed without being sent to the engine is provided, but dilution air is turned on by turning on engine 8b and blower 17 When the exhaust gas G diluted by A is introduced into the gas sampling pipe 18, at least a part of the exhaust gas S having heat due to an abnormality or failure of the sampling / exhaust direct switching device 21b is intended via the direct exhaust pipe 21a. There is a risk that it may flow to a place where it does not cause a fire, etc., which is very dangerous. In this case, since at least a part of the exhaust gas S flows to the direct exhaust pipe 21a without causing a fire or the like, the test data is invalidated even though the test is executed.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to detect an event that may cause an accident if left unattended, and to prevent this from occurring, and to test human setting errors. It is possible to prevent the test data from being invalidated by detecting it in advance.Furthermore, the exhaust gas with heat flows to an unintended place to cause a fire, etc. It is to provide a new and useful automobile exhaust gas measurement system capable of avoiding invalidation of test data when the whole amount is not introduced into the gas sampling pipe.

In order to achieve the above object, an automobile exhaust gas measurement system according to the present invention causes an automobile mounted on a chassis dynamo device to travel on a roller of the chassis dynamo device according to a travel mode and is discharged at that time. In an automobile exhaust gas measurement system in which exhaust gas is sampled, the collected sample gas is measured in a gas measurement device, and the measurement result is managed in an automobile exhaust gas measurement management device, scheduling of exhaust gas measurement, the chassis dynamo device warm-up and configuration management functions of the operation schedule of the exhaust gas measured by a plurality of test modes including adjustment of the motor vehicle automatic operation device, and, for each device in the system in response to the operation schedule set gas measured power vinegar has a function that controls the on / off control Joule management device is provided and configured to allow the transmission and reception of signals between the schedule management device and automobile exhaust gas measuring management system allows automatically measured, further the schedule management device, before the test of the exhaust gas measurement When an abnormality or failure occurs in each device or facility in the system, an alarm signal from an abnormality detector or alarm device provided in each device or facility is input, and the input alarm signal based on, and displays an abnormality or the contents of the failure has occurred in the screen, function of generating a command to prevent state of unattended operation be pressed unattended operation buttons, or, in the system during testing of the exhaust gas measurement If an abnormality or failure occurs in each device or facility, an alarm from an abnormality detector or alarm provided in each device or facility, etc. Beam signal is inputted, based on the inputted alarm signal, characterized in that it comprises a function of stopping running test (claim 1).

  In this case, it is preferable that the schedule management device has a function of recording alarm contents in a database.

Further, according to another aspect of the present invention, an automobile mounted on a chassis dynamo device is caused to travel by an automobile automatic driving device on a roller of the chassis dynamo device according to a running mode, and exhaust gas discharged at that time is collected. In a vehicle exhaust gas measurement system in which the collected sample gas is measured by a gas measurement device and the measurement result is managed by the vehicle exhaust gas measurement management device, scheduling of exhaust gas measurement , warming up of the chassis dynamo device, and the vehicle automatic Function to manage the setting of the operation schedule for exhaust gas measurement by multiple test modes including adjustment of the operating device, and the function to control the power on / off control of each device in the system corresponding to the operation schedule of the exhaust gas measurement set a schedule management device having provided this scan Configured to allow the exchange of signals between the module management apparatus and automobile exhaust gas measuring management system allows automatically measured, further the schedule management device, in underground pits test chamber before testing exhaust gas measuring If there is a leak in, the inputted alarm signal indicating that there is a leak in an underground pit from underground pits to the schedule management device, on the basis of this alarm signal, the contents of the abnormality has occurred with the screen , A function to issue a command so as not to be in an unmanned operation state even if the unmanned operation button is pressed , or if there is a leak in the underground pit of the test room during the exhaust gas measurement test, the schedule management from the underground pit An alarm signal indicating that there is water leakage in the underground pit is input to the device, and the running test is stopped based on this alarm signal. It has a function of providing a motor vehicle exhaust gas measuring system according to claim (claim 3).

In the present invention, the schedule management device, when an abnormality or failure occurs in each device or facility in the system before the exhaust gas measurement test , from an abnormality detector or alarm provided in each device or the facility, etc. The alarm signal is input, and based on the input signal, the details of the abnormality or failure that has occurred are displayed on the screen, and a command is issued so that the unmanned operation state cannot be entered even if the unattended operation button is pressed. Since it has a function, it can detect an accident that may cause an accident if left unattended and prevent it from occurring before it is tested. Therefore, it is possible to prevent the test data from being invalidated in advance. Or, if an abnormality or failure occurs during the exhaust gas measurement test as described above, it has a function to stop the running test, so that it is possible to avoid a situation that causes the exhaust gas to flow to an unintended place, This has the effect of avoiding invalidation of test data .

In the present invention, if there is water leak in the underground pit of the test room before the exhaust gas measurement test , an alarm signal indicating that there is water leak in the underground pit is input from the underground pit to the schedule management device. based on the signal, as well as occurring abnormality contents screen display, because of a function of issuing a command to prevent state of unattended operation be pressed unattended operation button, for example, the input test sequence If the signal input from the underground pit to the schedule management device is an alarm signal indicating that there is water leakage in the underground pit, “Underground pit water leakage” is displayed as an alarm, and it is dangerous to not operate the system. Can be prevented in advance . Or, if there is water leakage in the underground pit during the exhaust gas measurement test, it is equipped with a function to issue a command to stop the current test and stop the subsequent test sequence. This is effective in preventing the test data from becoming invalid.

Embodiments of the present invention will be described with reference to the drawings.
First, FIG. 1 schematically shows an example of the configuration of an automobile exhaust gas measurement system according to the present invention. In this figure, reference numeral 1 denotes an automobile exhaust gas measurement management device (not shown) provided in a measurement room (not shown). (Hereinafter referred to as a measurement management device) 2 is a schedule management device (hereinafter referred to as a scheduler) provided in the measurement chamber. These measurement management device 1 and scheduler 2 are each composed of an appropriate computer such as a personal computer, Display units 1a and 2a for displaying data are provided. The measurement management device 1 and the scheduler 2 are connected by a wired LAN 3 so that data can be exchanged between them.

  Reference numerals 4, 5, 6a and 7a denote a gas measuring device, a constant-capacity sampling device (CVS), and a chassis dynamo device 6 provided in a test chamber (not shown) which is airtightly partitioned from the measurement chamber. The control unit is a control unit of the automatic vehicle driving device 7 and is connected to the measurement management device 1 via the LAN 3. In the following, the measurement room and the test room may be collectively referred to as a cell.

  Reference numeral 6b denotes a chassis dynamometer provided in the test chamber, which is controlled by a chassis dynamometer control unit 6a. A driving wheel 8a of the automobile 8 to be tested is placed on the roller 6c. Reference numeral 7b denotes an automatic driving robot of the automatic vehicle driving device 7, which is set in a driver's seat of the vehicle 8 by an appropriate method, and is controlled by a signal from the automatic driving device controller 7a.

  The measurement management device 1 performs various test modes stored in the measurement management device 1 on the basis of a command from the scheduler 2 to collect and manage measurement data. , CVS 5, chassis dynamo device 6, automatic vehicle driving device 7, issue control signals via LAN 3, operate them, and perform various operations based on signals output from these devices 4 to 7, for example, Based on the signal from the gas measuring device 4, the concentration and amount of the measurement target component are calculated, and the calculation result is stored as measurement data. In addition to the test mode, the database of the measurement management apparatus 1 stores shift type information of the automobile 8 used for the test, event information whether to use the CVS 5, vehicle information, and the like. Yes. The function of the scheduler 2 will be described later.

The gas measuring device 4 is equipped with a plurality of gas analyzers having different measurement principles, and HC, NO _x , CO, CO ₂ contained in the engine exhaust gas G based on a command from the measurement management device 1. Each component such as can be measured separately, and the measurement data is sent to the measurement management device 1.

  The CVS 5 samples the exhaust gas G diluted with the dilution air A (see FIG. 2) based on a command from the measurement management device 1 as a sample gas S at a constant volume at a constant flow venturi ( The flow rate signal measured by the CFV) 16 or the like is sent to the measurement management device 1.

  Further, the chassis dynamo device 6 is controlled by a command from the measurement management device 1, and places the driving wheel 8a of the automobile 8 to be tested on the roller 6c to generate power absorption. The output from the speed sensor and torque sensor (none of which are shown) is sent to the measurement management device 1.

  The automobile automatic driving device 7 automatically drives the vehicle 8 in a predetermined driving mode based on the driving pattern of the driving mode (test mode) from the measurement management device 1.

  In FIG. 1, 9 is an engine cooling fan provided in front of the automobile 8. A large display panel 10 is provided in the test room so that it can be seen from the measurement room. Based on a signal from the scheduler 2, unmanned operation / manned operation, engine rotation, vehicle speed, boost pressure, various alarms (described later) Etc. are displayed.

  In FIG. 1, reference numeral 11 denotes a span gas concentration setting personal computer, which is connected to the measurement management device 1 and the scheduler 2 via the LAN 3. Further, 12a, 12b, 12c,... Are incidental facilities provided in the test chamber, and in this embodiment, air conditioning facilities, alarm devices, and fire extinguishing facilities are illustrated. These facilities 12a,... Are controlled or managed by the scheduler 2.

  FIG. 2 schematically shows an example of the configuration of the main hardware part in the automobile exhaust gas measurement system. In this figure, 8b is an engine of the automobile 8, and 8c is an exhaust pipe connected to the engine 8b. Reference numeral 13 denotes an exhaust gas passage connected to the exhaust pipe 8c, and a pipe 5a of the CVS 5 is connected to the downstream side thereof. The upstream side of the pipe 5a is connected to a dilution air supply path 15 having a dilution air purifier (hereinafter referred to as DAR) 14, and the exhaust gas G from the engine 8b is appropriately diluted with the dilution air A. Is done. Further, the pipe 5a includes a critical flow venturi (CFV) 16 and a suction blower 17 on the downstream side thereof, and a sampling unit for collecting the exhaust gas G diluted slightly upstream of the CFV 16 as the sample gas S. A gas sampling pipe 18 provided with 18a is connected, and the sample gas S is collected at a constant volume. In addition, 19 is an atmospheric bypass port provided in the dilution air supply path 15, and 20 is an opening / closing valve thereof.

  Next, the function of the scheduler 2 will be described with reference to FIGS. This scheduler 2 controls the setting and scheduling of exhaust gas measurement in an automobile exhaust gas measurement system, and controls the power on / off of each device in the system, and also has a display function of analysis results and a management function of span gas concentration. I have.

  That is, the scheduler 2 can input an annual calendar (equipment plan) of the automobile exhaust gas measurement system. As shown in FIG. 3, for example, a schedule table T for 8 days (including holidays) is shown on the screen, and clearly shows whether the operation days, holidays, end, and unmanned operation. The scroll bar 22 can be used to scroll on a weekly basis. Further, on this screen, buttons 23 such as “copy”, “paste”, “apply”, “cancel”, “unmanned operation”, “stop operation” and the like are provided. Here, not only the power of the device is turned on, but the state of the unmanned operation can be made only by pressing the “unmanned operation” button 23.

  Then, the scheduler 2 turns on / off each device depending on the difference of working day / holiday / long-term suspension set in the annual calendar, STBY (standby) / PAUSE of the analyzer of the gas measuring device 4, and the chassis dynamo device 6 Can be set as shown in FIG. FIG. 4 shows an example of input of an automation table (equipment state) for morning and evening regular work. Therefore, the scheduler 2 outputs a contact signal for each power supply or issues a command to the measurement management apparatus 1 as shown in FIG. 5 showing a signal flow for power-on. In FIG. 5, 24 is an uninterruptible power supply.

  The scheduler 2 inputs a test sequence as shown in FIG. As the contents input here, for example, as shown in FIG. 7, the test mode stored in the measurement management device 1, shift type information, event information on whether or not to use the CVS 5, vehicle information, etc. Specify (see (A) in the figure), specify whether or not to perform various calibrations (see (B) in the same figure), specify whether or not to perform distance measurement and continuous measurement. (Refer to FIG. 2C). When a plurality of tests are sequentially performed, editing is performed on the test mode editing screen shown in FIG.

  Furthermore, when an abnormality or failure occurs in each device or facility in the system, the scheduler 2 receives and inputs an alarm signal from an abnormality detector or alarm provided in each device or the like. Based on the signal, it has functions such as displaying the contents of the abnormality that has occurred, issuing a command for processing the abnormality, and recording the alarm contents in a database. FIG. 9 shows various alarm signals in the system, the processing contents by hardware and the processing contents by software based on the alarm signal, and FIGS. 10 to 18 show signal flows concerning various alarms in the system. Is shown.

  In FIG. 2, a sampling state in which exhaust gas G from the exhaust pipe 8c is sent to the sampling blower 17 side by a changeover switch (not shown) and an exhaust pipe 8c from the exhaust pipe 8c are disposed upstream of the exhaust gas flow path 13. An exhaust gas sampling / exhaust direct switching device (shown by a solid line) 21 that can be switched to a direct exhaust state in which the exhaust gas G is exhausted without being sent to the blower 17 side is provided.

That is, when the engine 8b and the blower 17 are turned on and the exhaust gas G diluted with the dilution air A is introduced into the gas sampling pipe 18, the limit switch 100 is provided at the tip in FIG. When the operator the sampling connecting pipe 13b to be formed is connected to the exhaust pipe 8c manually, the scheduler 2, input signals k ₁ indicating that switched to the sampling state can sampling of the exhaust gas from the limit switch 100 Then, on the basis of the signal k ₁ , the “unmanned operation” button is pressed to enter the unmanned operation state, and the exhaust gas measurement test is performed. The flow of the signal k _{1 in} this case is shown in FIG. The signal k ₁ output from the sampling / exhaust direct switching device 21 is input to the interlock unit 120 that is responsible for collecting various signals once, and is input to the scheduler 2 via the relay panel 60.

On the other hand, when the operator has manually connected the direct exhaust pipe 21a having the limit switch 101 at the tip and forming the exhaust direct flow path to the exhaust pipe 8c, the scheduler 2 cannot perform exhaust gas sampling. A signal k ₂ indicating that the state has been switched is input from the limit switch 101, and based on this signal k ₂ , a command is issued so that an unattended operation state cannot be established even if the “unattended operation” button is pressed. That is, in the case of unmanned operation, since the main purpose is measurement of exhaust gas, if the exhaust gas measurement test is executed in the direct exhaust state, the result of the test becomes completely meaningless. Therefore, in this invention, the scheduler 2 checks whether the sampling state or the direct exhaust state has been switched when the operator presses the “unmanned operation” button, thereby preventing such an error in advance. Has the advantage of being able to.

  In FIG. 11A, the sampling connecting pipe 13b and the direct exhaust pipe 21a are connected in advance to the exhaust pipe 8c, respectively, and the sampling valve 102 provided integrally with the open / close plate 103 by the operator manually. To open the exhaust pipe 8c and the sampling connecting pipe 13b, while closing the exhaust direct valve 105 provided integrally with the opening and closing plate 104 to disconnect the exhaust pipe 8c and the direct exhaust pipe 21a, An example in which a test is performed is shown.

  In this case, the scheduler 2 receives from the limit switch 106 a signal indicating that the sampling state is switched to the sampling state where the exhaust gas can be sampled, and the “unmanned operation” button is pressed based on this signal. The exhaust gas measurement test is conducted.

  On the other hand, the operator manually closes the sampling valve 102 to disconnect the exhaust pipe 8c and the sampling connecting pipe 13b, while opening the exhaust direct valve 105 to connect the exhaust pipe 8c and the direct exhaust pipe 21a. In this case, the scheduler 2 receives a signal from the limit switch 107 indicating that the exhaust state cannot be sampled and is switched to the direct exhaust state, and based on this signal, the unmanned operation button is pressed. A command is issued so that it cannot be in a driving state.

  In FIG. 11B, the sampling connecting pipe 13b and the direct exhaust pipe 21a are connected in advance to the exhaust pipe 8c, and the operator manually opens the sampling valve 102 to connect the exhaust pipe 8c. By connecting the sampling connecting pipe 13b and closing the exhaust direct valve 105 so that the exhaust pipe 8c and the direct exhaust pipe 21a are not in communication, the operator further rotates the manual dial switch 110. An example is shown in which the exhaust gas measurement test is confirmed.

  In this case, the scheduler 2 receives from the switch 110 a signal indicating that the sampling state is switched to the sampling state where the exhaust gas can be sampled, and on the basis of this signal, the “unmanned operation” button is pressed. A test of exhaust gas measurement is performed.

  On the other hand, the operator manually closes the sampling valve 102 to disconnect the exhaust pipe 8c and the sampling connecting pipe 13b, while opening the exhaust direct valve 105 to connect the exhaust pipe 8c and the direct exhaust pipe 21a. This is confirmed by the operator further rotating the manual dial switch 110 in the direction opposite to that in the sampling state, and the scheduler 2 switches to the direct exhaust state where the exhaust gas cannot be sampled. A signal indicating that the operation is not performed is input from the switch 110, and based on this signal, a command is issued so that the driver cannot enter the unmanned operation state even if the “unmanned operation” button is pressed.

  Further, FIG. 12 shows that when the sampling connecting pipe 13b and the direct exhaust pipe 21a are previously connected to the exhaust pipe 8c, the manual dial switch 110 and the sampling valve 102 are interlocked via the solenoid 111. On the other hand, an example in which a manual dial switch 110 and an exhaust direct valve 105 are linked via a solenoid 112 is shown.

  That is, when the operator performs a rotation operation for switching the switch 110 to the sampling state, the solenoid 111 is operated so that the sampling valve 102 is opened, and the solenoid 112 is operated so that the exhaust direct valve 105 is closed. Then, while the limit switch 106 is turned on, the limit switch 107 remains off, and these on signal and off signal are input as signals to the scheduler 2, and based on this, the “unmanned operation” button is pressed. In the unmanned operation state, the exhaust gas measurement test is performed.

  On the other hand, when the sampling valve 102 is closed and the exhaust direct valve 105 is opened, an off signal and an on signal as signals indicating that the direct exhaust state is switched are input from the limit switches 106 and 107, respectively. Based on the signal, a command is issued so that the unmanned operation state cannot be achieved even if the “unmanned operation” button is pressed.

  As described above, in FIGS. 10 to 12, when the engine 8b and the blower 17 are turned on and the exhaust gas G diluted with the dilution air A is introduced into the gas sampling pipe 18, the signal is scheduled by the operator's manual operation. 2, the sampling / exhaust direct switching device 21 that automatically switches between the sampling state and the direct exhaust state is provided, and the sampling / exhaust direct switching device 21 is abnormal or malfunctioned (FIG. 9). The alarm signal indicating that an abnormality or failure has occurred in the scheduler 2 from the sampling / exhaust direct switching device 21 may be automatically input.

  That is, when the engine 8b and the blower 17 are turned on and the exhaust gas G diluted with the dilution air A is introduced into the gas sampling pipe 18, an abnormality or failure occurs in the sampling / exhaust direct switching device 21. Then, an alarm signal is input to the scheduler 2, and on the basis of this alarm signal, for example, “CVS” is displayed on the large display panel (large display) 10 as an alarm, that is, a warning is displayed on the screen of the large display panel 10. It is configured so that it can be displayed. Therefore, for example, before inputting the test sequence, a signal input from the sampling / exhaust direct switching device 21 to the scheduler 2 is confirmed, and if an alarm is displayed, a dangerous state is prevented by not operating the system. be able to. Further, since abnormality or failure of the sampling / exhaust direct switching device 21 is detected in advance before the test, it is possible to prevent the test data from becoming invalid. Further, since the sampling / exhaust direct switching device 21 is abnormal or malfunctioning, it is configured not to be in an unattended operation state even if the “unattended operation” button 23 is pressed.

  Further, the exhaust gas S diluted with the dilution air A is introduced into the gas sampling pipe 18, and during the test, the sampling / exhaust direct switching device 21 becomes abnormal or malfunctions, and the exhaust gas S having heat is generated. When it is introduced into the direct exhaust pipe 21a, a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled. Thereby, it is possible to prevent a situation in which the exhaust gas S having heat flows to an unintended place through the direct exhaust pipe 21a and causes a fire or the like. That is, the present invention can prevent the exhaust gas S having heat from flowing to an unintended place and causing a fire or the like, and even if it does not cause a fire or the like, the exhaust gas used for exhaust gas measurement is not introduced into the gas sampling unit. This has the effect of avoiding invalidation of test data.

  FIG. 14 shows a case where the engine cooling fan 9 which is normally locked in a fixing device provided on the floor of the test room so as not to be moved by wind force or the like is installed on the floor of the test room without being locked. A software processing method (case indicated by A in FIG. 9) and a software processing method when the engine cooling fan 9 is abnormal (case indicated by B in FIG. 9) are shown. In FIG. 9, a portion marked with a circle is a corresponding portion.

  That is, in the present invention, in a state where the engine cooling fan 9 is locked, for example, a limit switch provided in the fixing device is turned on, and the lock signal (ON signal) is input to the scheduler 2 via the relay panel 60. However, if the engine cooling fan 9 is not locked, the limit switch is turned off, so an alarm signal (off signal) is input to the scheduler 2, and a large display panel ( The “large-sized display” 10 is configured such that “engine cooling fan” is displayed as an alarm, that is, a warning can be displayed on the screen of the large-sized display panel 10. Therefore, for example, before inputting the test sequence, a signal input from the engine cooling fan 9 to the scheduler 2 is confirmed, and if an alarm is displayed, a dangerous state can be prevented by not operating the system. . Further, since the engine cooling fan 9 is not fixed, it is configured not to be in an unmanned operation state even if the “unmanned operation” button 23 is pressed. If the engine cooling fan 9 is detached from the fixing device during the test, a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled.

  On the other hand, when the engine cooling fan 9 has an abnormality or failure, an alarm message “engine cooling fan” is displayed on the large display panel 10 and a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled.

  FIG. 15 shows a processing method by software (case shown by C in FIG. 9) when an inspection port provided on the floor leading to the underground pit of the test room is not closed.

  In this case, a two-contact manual switch is provided in the vicinity of the inspection port. For example, a signal input from the inspection port to the scheduler 2 before inputting the test sequence is an open signal indicating that the inspection port is open. "Inspection" is displayed on the large display panel 10 as an alarm, and a dangerous state can be prevented by not operating the system. And since the inspection port is not closed, even if the "unmanned operation" button 23 is pushed, it is comprised so that it cannot be in the state of unmanned operation. In this case, the two-contact manual switch is provided because the operation of opening and closing the inspection port is prone to human error, and in other words, it leads to a human accident. Used for the purpose (opening and closing of inspection port), the other contact is detected by the system.

  When an open signal is detected during the test, a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled.

  FIG. 16 shows a processing method by software when water leaks in the underground pit of the test room (case indicated by D in FIG. 9).

  In this case, for example, when the signal input from the underground pit to the scheduler 2 before inputting the test sequence is an alarm signal indicating that there is water leakage in the underground pit, the large display panel 10 displays “underground pit water leakage”. Is displayed as an alarm, and dangerous situations can be prevented by not operating the system. And since there is water leakage in the underground pit, the scheduler 2 is configured to issue a command to turn off the possible power.

  If an alarm signal for underground pit leakage is detected during the test, a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled.

  FIG. 17 shows a processing method by software (case indicated by E in FIG. 9) when the temperature of the exhaust pipe of the CVS 5 exceeds a predetermined value.

  In this case, for example, if the signal input from the exhaust pipe to the scheduler 2 before inputting the test sequence is a temperature alarm signal, “CVS” is displayed on the large display panel 10 as an alarm, and the system is not operated. This can prevent dangerous situations.

  When a temperature alarm signal is detected during the test, a process for immediately stopping the test sequence being executed is performed. The subsequent test sequence is also canceled.

  FIG. 18 shows a processing method by software (case indicated by F in FIG. 9) when there is an abnormality in the hood opening / closing device of the automobile 8 to be tested.

  In this case, when the signal input to the scheduler 2 from the bonnet switchgear is an alarm signal, only “ROBOT” is displayed on the large display panel 10 as an alarm, and this alarm display is output before the test sequence is input. If the alarm display disappears during the test, the test is configured to continue normally and the alarm content is recorded in the scheduler 2 database. It is configured as follows. That is, it is left as a log that there was an abnormality in the bonnet switching device.

  As is apparent from FIG. 9, if there is an abnormality in the DAR, the air conditioner, and the dehumidifying device other than the bonnet opening / closing device, this is left as a log in the scheduler 2.

It is a figure showing roughly an example of composition of an automobile exhaust gas measurement system of this invention. It is a figure which shows roughly an example of a structure of the main hardware part in the said measurement system. It is a figure for demonstrating the function of the scheduler used in the said measurement system. It is a figure for demonstrating the function of the said scheduler. It is a figure which shows an example of the signal flow regarding power activation in the said measurement system. It is a figure which shows an example of the signal flow regarding the test sequence in the said measurement system. It is a figure for demonstrating the said test sequence. It is a figure for demonstrating the edit of the test mode by the said scheduler. It is a figure which shows various alarm signals in the automobile exhaust gas measurement system of this invention, the processing content by the hardware based on the alarm signal, and the processing content by software. FIG. 3 is a diagram illustrating a first example of a sampling / exhaust direct switching device that can be manually switched between a sampling state and a direct exhaust state in the measurement system. (A) is a figure which shows the 2nd example of the sampling / exhaust direct switching apparatus which can be switched manually to a sampling state and a direct exhaustion state in the said measurement system. (B) is a diagram showing a third example of a sampling / exhaust direct switching device that is manually switched between a sampling state and a direct exhaust state in the measurement system. It is a figure which shows the 4th example of the sampling / exhaust direct switching apparatus switched manually between a sampling state and a direct exhaust state in the said measurement system. It is a figure which shows the alarm signal flow from the sampling / exhaust direct switching device in the said measurement system. It is a figure which shows the alarm signal flow from the engine cooling fan in the said measurement system. It is a figure which shows the alarm signal flow from the inspection port of an underground pit in the said measurement system. It is a figure which shows the alarm signal flow from the underground pit in the said measurement system. It is a figure which shows the alarm signal flow from the exhaust introduction pipe | tube in the said measurement system. It is a figure which shows the alarm signal flow from the bonnet opening / closing apparatus in the said measurement system.

Explanation of symbols

1 Automotive exhaust gas measurement management device 2 Schedule management device
6 Chassis dynamo equipment
6c Roller 7 Automobile driving device 8 Automobile G Exhaust gas S Sample gas.

Claims (3)

The vehicle mounted on the chassis dynamometer device is driven by the automatic vehicle driving device on the roller of the chassis dynamometer device according to the driving mode, the exhaust gas discharged at that time is collected, and the sample gas collected is collected in the gas measuring device. A plurality of test modes including an exhaust gas measurement scheduling, a warm-up of the chassis dynamo device, and an adjustment of the automatic driving device of the vehicle in an automotive exhaust gas measurement system in which the measurement result is managed by the automotive exhaust gas measurement management device Configuration management of the operation schedule of the exhaust gas measurement, and the schedule management device having the function for governing the power on / off control of each device in the system in response to the operation schedule set gas measurement provided by, the schedule management device and automobile waste gas Measuring management device configured to allow the exchange of signals between the enables automatically measured, further the schedule management device, abnormality or fault in the equipment and facilities in the system before testing exhaust gas measuring When it occurs, an alarm signal from an abnormality detector or alarm device provided in each device or facility is input, and based on the input alarm signal, the content of the abnormality or failure that has occurred is displayed. A function that issues a command not to display unattended operation even when the unattended operation button is pressed , or when an abnormality or failure occurs in each device or facility in the system during the exhaust gas measurement test Is inputted with an alarm signal from an abnormality detector or an alarm provided in each device or the equipment, and is executed based on the inputted alarm signal. Automobile exhaust gas measuring system, characterized in that it comprises a function of stopping the test.   The automobile exhaust gas measurement system according to claim 1, wherein the schedule management device has a function of recording alarm contents in a database. The vehicle mounted on the chassis dynamometer device is driven by the automatic vehicle driving device on the roller of the chassis dynamometer device according to the driving mode, the exhaust gas discharged at that time is collected, and the sample gas collected is collected in the gas measuring device. A plurality of test modes including an exhaust gas measurement scheduling, a warm-up of the chassis dynamo device, and an adjustment of the automatic driving device of the vehicle in an automotive exhaust gas measurement system in which the measurement result is managed by the automotive exhaust gas measurement management device Configuration management of the operation schedule of the exhaust gas measurement by, and is provided with a schedule management device having the function for governing the power on / off control of each device in the system in response to the operation schedule set gas measurement, this schedule Management equipment and car exhaust Measuring management device configured to allow the exchange of signals between the enables automatically measured, further the schedule management device, if there is a leak in an underground pit test chamber before testing exhaust gas measuring, An alarm signal indicating that there is water leakage in the underground pit is input from the underground pit to the schedule management device. Based on this alarm signal, the details of the abnormality that has occurred are displayed on the screen and the unmanned operation button is pressed. If there is water leakage in the underground pit of the test room during the exhaust gas measurement test, the schedule management device will enter the schedule management device into the underground pit. characterized in that the alarm signal indicating that there is a leakage is inputted, on the basis of this alarm signal, and a function of stopping running test Automobile exhaust gas measurement system.

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