JP5597673B2 - Vehicle performance test system - Google Patents

Description

  The present invention relates to a vehicle performance test system for testing the performance of a vehicle such as an automobile.

  A conventional vehicle performance test system for testing the performance of a vehicle such as an automobile drives an automobile mounted on a chassis dynamo device according to a predetermined driving mode by an automatic driving robot, and determines exhaust gas discharged at that time. Collect the sample gas with a volume sampling device, and supply the collected sample gas to an exhaust gas measurement device equipped with multiple gas analyzers with different measurement principles to measure each of the above components to test the performance of the vehicle (Patent Document 1).

  By the way, in this type of vehicle performance test system, tests stipulated by laws and regulations are performed, so the temperature at the time of testing and the flow rate of exhaust gas must be adjusted accurately. However, since this type of vehicle performance test system has a very complicated flow path system, once a trouble occurs, it is difficult to quickly locate and restore the cause.

JP 2010-276473 A

  Therefore, the present invention is intended to provide a vehicle performance test system that can quickly find the cause of a trouble.

  That is, the vehicle performance test system according to the present invention includes a measurement device that analyzes exhaust gas and measures the performance of the vehicle, and a management device that manages the measurement device, and the management device includes the analyzer. A status data acquisition unit that sequentially acquires information on the operating status as status data, and a trouble data recording unit that records the status data in the memory as trouble data when the content of the acquired status data satisfies a predetermined condition; A trouble list display for displaying on the screen, in accordance with at least the contents relating to at least a predetermined item of the contents indicated by the trouble data recorded in the trouble data recording section, in a table format that can be selected for each trouble data. And a position information screen display section for displaying a position information screen illustrating the position where the selected trouble data is acquired. Characterized in that, characterized in that is obtained by Bei.

  If this is the case, troubles that have occurred in the trouble list display area will be displayed as a list, so you can get a complete overview of the occurrence of the trouble and the location where the trouble selected in the position information screen display area has occurred As shown in the figure, the position where the trouble has occurred can be easily recognized visually. For this reason, it is possible to quickly grasp the place where the trouble has occurred and quickly solve the trouble.

  The present invention may further include a monitoring screen display unit that displays on the screen an alarm icon that lights when the trouble data recording unit records trouble data.

  As described above, according to the present invention, it is possible to quickly grasp a trouble occurrence point and quickly solve the trouble.

1 is a schematic overall view showing a vehicle performance test system according to an embodiment of the present invention. The functional block diagram of the device management apparatus and exhaust gas measurement device in the embodiment. Screen explanatory drawing which shows the monitoring screen in the embodiment. Explanatory drawing which shows the trouble list display screen in the embodiment. Screen explanatory drawing which shows the positional infomation display screen in the embodiment. The screen explanatory view showing the position information display screen in other embodiments. The screen explanatory view showing the position information display screen in other embodiments.

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

  FIG. 1 schematically shows an entire vehicle performance test system 1 according to the present embodiment. The vehicle performance test system 1 includes a chassis dynamometer 2, an automatic driving device 3, a test automatic management device 5, a plurality of exhaust gas measurement devices 4, a device management device 6 and the like as shown in FIG. The vehicle VH can be put in a simulated running state on the chassis dynamometer 2 and the performance of the vehicle VH related to fuel consumption, exhaust gas components, etc. can be tested.

  Each part will be described below. The chassis dynamometer 2 includes a uniaxial rotating drum 21, a motor and flywheel (not shown) that applies a load to the rotating drum 21, and a dynamo control device 22 that controls them. The rotating drum 21, motor, or flywheel is installed in a pit below the floor F of the test chamber 10, and the top of the rotating drum 21 is exposed from an opening provided in the floor F of the test chamber 10. ing. The vehicle VH is configured to be able to travel in the same state as the actual traveling by setting the driving wheel to a test position where the driving wheel is positioned immediately above the top of the rotating drum 21. The dynamo control device 22 is accommodated in, for example, a measurement chamber provided adjacent to the test chamber 10. The test chamber 10 and the measurement chamber (or in addition to the above pits) are collectively referred to as so-called cells.

  The automatic driving device 3 includes a driving robot (not shown) that is mounted in the cab of the vehicle VH and drives an accelerator, a brake, a clutch, and the like, and a robot control device 31 that is connected to the driving robot and controls the driving robot. By providing various command signals to the robot control device 31, the driving robot can be controlled and the vehicle VH can be automatically driven in one or a plurality of driving modes such as the 10 mode and the LA mode. It is like that. The robot control device 31 is accommodated in the measurement chamber, for example.

  The test automatic management device 5 is basically for setting a schedule for a running test, although a detailed description is omitted. Setting a driving test schedule means, for example, setting the vehicle behavior such as vehicle speed and engine speed, setting the measurement target, measurement timing, etc. in addition to setting the test mode and test date. It is to do. This automatic test management apparatus is provided with a communication port, and the measurement device 4, the chassis dynamometer 2, the automatic driving apparatus 3 and the like are connected to the automatic test apparatus 5 through a wired or wireless connection so that they can communicate with each other. Is done.

  Thus, when the schedule is set by the operator, the automatic test management device 5 appropriately transmits a command signal to the chassis dynamometer 2, the automatic driving device 3, the device management device 6 and the like according to the schedule, and the test according to the schedule is performed. Control them as done.

  In FIG. 1, one device management apparatus 6 is connected to one automatic test management apparatus 5, but a plurality of device management apparatuses 6 may be connected. The automatic test management apparatus 5 can schedule each device management apparatus 6 independently.

  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 analyzers 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 of measurement devices 4 are used. For example, a first measurement device 41 incorporating a plurality of gas analyzers 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 analyzer is, for example, a FID for measuring THC, a CLD for measuring NOx, NDIR for measuring CO, CO ₂ or the like.

Each measuring device 4 includes a sampling pipe for sampling intake gas or exhaust gas from the intake / exhaust path of the vehicle internal combustion engine, and HC, NO _x , and so on related to the sampled gas through the sampling pipe The amount of each component such as CO and CO ₂ is measured, and the performance values of the devices constituting the vehicle such as the internal combustion engine and the catalyst, such as fuel efficiency and EGR rate, are calculated from the measured values.

  For this purpose, each measuring device 4 includes a local computer in addition to a sensor for measurement, and the local computer corrects or calibrates the output value from the sensor to indicate the amount of each component. A calculation unit that calculates a value and calculates the device performance value from the measurement value, and a communication unit that transmits the measurement value and the device performance value calculated by the calculation unit to the device management apparatus 6 using a predetermined protocol Demonstrate the function.

  In addition, the local computer receives a command signal from the device management device 6 and operates in the operation mode (measurement mode, calibration mode, purge mode, etc.) and state mode (sleep mode, standby mode, etc.) of the exhaust gas measurement device 4. ) For controlling the mode, a calibration unit for calibrating the sensor, or device status information from the past to the present of the measuring device 4, for example, pump pressure information indicating the suction pressure by the built-in pump, sensor unit Sensitivity information, which is information related to the sensitivity, accumulated operation time information indicating the accumulated operation time of each unit, inspection date specifying information which is information for specifying a predetermined inspection date of the measurement device 4 and the like are stored. A local storage unit is further provided.

  Furthermore, each measuring device 4 incorporates various sensors such as a pressure sensor and a temperature sensor in order to monitor its operating status. In this embodiment, these sensors are used as pressure data and temperature data. It functions as a status data acquisition unit 401 that acquires status data regarding the operating status of each measurement device 4.

  The device management apparatus 6 is configured by installing a predetermined program in a general-purpose computer, for example, and physically includes a CPU, a memory, a display 67, input means (a keyboard, a mouse, etc.), a communication interface, and the like. ing. And, by the cooperation of the CPU and its peripheral devices according to the program stored in the memory, this device management apparatus 6 has a function as a connection / disconnection operation monitoring unit, a device indicator display unit, a device information acquisition unit, etc. In the present embodiment, as shown in FIG. 2, a data reception unit 61, a temporary data storage unit 62, a trouble / trouble data recording unit 63, a data management unit 64, a judgment criterion parameter storage unit 65, a display unit 66, and an input reception unit 68. It is constituted so that the function as etc. may be demonstrated. The device management apparatus 6 is provided with a communication port, and the measurement device 4 is connected to the device management apparatus 6 so as to be communicable with each other by wire or wirelessly.

  Hereinafter, each unit of the device management apparatus 6 will be described in detail.

  The data receiving unit 61 acquires status data output from various sensors such as a pressure sensor and a temperature sensor functioning as the status data acquiring unit 401 one after another in a time series, and the acquisition The status data thus written is successively written in the temporary data storage unit 62 set in a predetermined area in the memory. When the capacity of the temporary data storage unit 62 becomes full, old data is sequentially deleted, and new status data is written there.

  The data management unit 64 determines whether or not the content of the situation data stored in the temporary data storage unit 62 satisfies a predetermined condition. 62 to the trouble data recording unit 63 provided in a predetermined area of the memory.

  Here, in determining whether or not the predetermined condition is satisfied, a determination criterion parameter provided corresponding to each situation data is used. This criterion parameter is stored in advance in a criterion parameter storage unit 65 provided in a predetermined area of the memory. For example, when it is desired to store the situation data as trouble data when a predetermined pressure value is exceeded, the determination reference parameter includes a predetermined pressure value.

  The display unit 66 controls the display 67, and as shown in FIGS. 3, 4, and 5, a monitoring screen display function (function as a monitoring screen display unit), a trouble list display function (trouble list display unit) Function), a position information screen display function (function as a position information screen display unit), and the like. Here, the monitoring screen display function is a function for displaying the monitoring screen G0 with the alarm icon R that is turned on when the trouble data recording unit 63 records the trouble data. The trouble list display function is a function for displaying a trouble list display screen G1 showing the contents indicated by the trouble data transferred to the trouble data recording unit 63 in the form of a table defined for each trouble data. The position information screen display function is a function that displays a position information screen G2 that schematically illustrates the position at which the trouble data selected by the operator from the trouble data displayed in the trouble list is acquired.

  The input accepting unit 68 accepts switching to the trouble list display screen G1 by clicking the alarm icon R displayed on the monitoring screen G0 shown in FIG. 3 with a mouse or the like. Further, the input receiving unit 68 receives a specification for any one of the trouble data displayed in the trouble list L by clicking with a mouse or the like, and the display unit 66 follows the specification. A flow path circuit diagram P showing the position where the trouble data is acquired and a position information screen G2 showing how to deal with the trouble are displayed.

  Next, the operation of the vehicle performance test system 1 having such a configuration will be described.

  First, when the status data acquisition unit 401 such as a pressure sensor or a temperature sensor outputs status data such as pressure data or temperature data, the data receiving unit 61 receives the status data one after another, and receives the received status data as temporary data. One after another is written in the storage unit 62.

  Next, the data management unit 64 determines whether the content of the situation data stored in the temporary data storage unit 62 satisfies a predetermined condition corresponding to the occurrence of the trouble, based on the determination criterion parameter acquired from the determination criterion parameter storage unit 65. .

  When it is determined that the content of the situation data stored in the temporary data storage unit 62 satisfies a predetermined condition corresponding to the occurrence of the trouble, the situation data is transferred to the trouble data recording unit 63 as trouble data.

  When the trouble data is transferred to the trouble data recording unit 63, as shown in FIG. 3, the alarm icon R attached to the upper part of the monitoring screen G0 is turned on.

  When the operator clicks the alarm icon R on the monitoring screen G0 with a mouse or the like, the display unit 66 acquires trouble data from the trouble data recording unit 63. The display unit 66 that has acquired the trouble data displays, as shown in FIG. 4, a trouble list L that takes the form of a table defined for each trouble data, as shown in FIG. Displayed on the trouble list display screen G1. Items displayed in the trouble list L can be selected as appropriate. For example, the conditions such as pressure and temperature, the flow path system in which the trouble has occurred, the analyzer in which the trouble has occurred, the trouble occurrence date and time, etc. are included. It is. In the trouble list L, trouble data is classified and displayed for each flow path system.

  When the operator selects the target trouble data from the trouble list L displayed on the trouble list display screen G1 by clicking with the mouse or the like, the selected trouble data is highlighted and, as shown in FIG. The information screen G2 is displayed in a separate window, and the flow path circuit diagram P with the mark M indicating the trouble data acquisition position and trouble summary selected on the position information screen G2 is displayed. A countermeasure method for the trouble is also displayed on the position information screen G2. When other trouble data is selected, a new position information screen G3 is displayed as shown in FIG.

  According to the vehicle performance test system 1 according to the present embodiment configured as described above, troubles occurring on the trouble list display screen G1 are displayed as a list, so that the entire situation of trouble occurrence can be viewed and selected. Since the position where the trouble has occurred is shown in the flow path circuit diagram P displayed on the position information screen G2, the position where the trouble has occurred can be easily recognized visually. For this reason, it is possible to quickly grasp the place where the trouble has occurred and quickly solve the trouble.

  Further, since only the selected trouble occurrence position is indicated by the mark M on the position information screen G2, even if there is another trouble occurrence position on the position information screen G2, it is easy to identify the selected trouble occurrence position. .

  The present invention is not limited to the above embodiment.

  In the embodiment, the flow path circuit diagram is used to schematically show the position where trouble data is acquired on the position information screen. However, as shown in the position information screen G4 in FIG. Instead of the drawing, a structural diagram S schematically showing a mechanical configuration of a unit including one analyzer or a plurality of analyzers may be used.

  In the above embodiment, only the selected trouble occurrence position is indicated by a mark on the position information screen. However, when there are a plurality of trouble occurrence places on the same position information screen, It may be indicated by a mark.

  Furthermore, in the above-described embodiment, the trouble list display screen and the position information screen are displayed on separate windows. However, one window is divided into two screens, and the trouble list display screen and the position information screen are displayed. May be displayed collectively on one window.

  In addition, the present invention can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Vehicle performance test system 4 ... Exhaust gas measurement device 401 ... Status data acquisition part 6 ... Device management apparatus 63 ... Trouble data recording part G1 ... Trouble list display screen G2 ...・ Location information screen

Claims (2)

A measuring device for analyzing the exhaust gas and measuring the performance of the vehicle, and a management device for managing the measuring device;
The management device is
A status data acquisition unit that sequentially acquires information on the operating status of the measurement device as status data;
When the content of the acquired situation data satisfies a predetermined condition, a trouble data recording unit that records the situation data in the memory as trouble data;
A trouble list display for displaying on the screen, in accordance with at least the contents relating to at least a predetermined item of the contents indicated by the trouble data recorded in the trouble data recording section, in a table format that can be selected for each trouble data. And
A position information screen display unit for displaying a position information screen illustrating the position where the selected trouble data is acquired ;
The vehicle performance test system, wherein the trouble list display unit is configured to classify and display trouble data for each flow path system.   The vehicle performance test system according to claim 1, further comprising a monitoring screen display unit that displays an alarm icon that is turned on when the trouble data recording unit records trouble data.