JP2019164651A - Exhaust gas fuel economy determination device for vehicle - Google Patents

Abstract

To obtain a program or a device which is easy to cope with a regulation, new installation or a change when quality-managing an exhaust gas or the fuel economy of a vehicle following the regulation.SOLUTION: In an exhaust gas fuel economy determination part, measurement data are acquired from a measurement device (S10). Then, vehicle information such as a destination, a vehicle model, weight and a transmission is displayed (S12). When a user selects a vehicle (S14), a calculation equation with respect to a regulation corresponding to the vehicle, and reference data are acquired (S16). Then, the adaptability of the regulation is determined on the basis of the calculation equation and the reference data (18). A determination result can be displayed in a graph (S20).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle exhaust gas mileage determination apparatus that performs legal compliance determination on vehicle exhaust gas or fuel consumption.

  In a vehicle using an internal combustion engine (engine) as a drive source, quality control is performed in accordance with regulations based on measurement data of exhaust gas from the internal combustion engine. In addition, in a vehicle, it is also necessary to perform quality control in accordance with laws and regulations based on fuel consumption measurement data.

  For example, Patent Document 1 below describes a quality control mode when a chemical substance is used in a product. Here, after obtaining environmentally hazardous substance information including information on prohibited substances in multiple countries, it is determined whether or not the chemical substances used in the product are prohibited in specific countries. Is going.

Japanese Patent Laying-Open No. 2015-035124

  Regarding exhaust gas and fuel consumption, quality control must be performed based on laws and regulations. Judgment criteria for quality control are exhaust gas and fuel consumption for each destination (Japan, Europe, China, North America, Taiwan, Hong Kong, Thailand, etc.) and for each regulation (JC08, NEDC, LEV3, WLTP, etc.). I know.

  These laws and regulations are many and complex, and they include many calculations. For example, there are rules unique to laws and regulations, such as control of significant figures. Moreover, when new regulations such as WLTP regulations are issued, the items to be confirmed are about twice as large as those of conventional regulations.

  For this reason, a complicated program is formed. However, knowledge of laws and knowledge of program control is required for programming. However, human resources who are familiar with both knowledge are limited, and in general, they must work together. Moreover, since laws and regulations are newly created or changed every year, it is necessary to spend a lot of time and cost each time.

  An object of the present invention is to realize a program or an apparatus in which it is easy to cope with the establishment or change of regulations when quality control of exhaust gas or fuel consumption of vehicles is performed according to regulations.

  The exhaust gas fuel consumption determination device for a vehicle according to the present invention includes a storage unit that stores a determination criterion for each vehicle type to which a regulation is applied, and a vehicle type of a vehicle to be determined, for at least one of measured values of exhaust gas or fuel consumption of the vehicle. Input means for inputting information and the measurement value for the vehicle, and acquisition means for acquiring the determination criterion applied to the vehicle based on the inputted vehicle type information of the vehicle. And determining means for determining compliance with the law based on the acquired determination criterion for the measured value of the vehicle.

  Here, the vehicle information includes information necessary for specifying applicable laws and regulations such as destination (region), vehicle model, weight, transmission, and the like. The storage means may store, for example, a criterion based on applicable laws and regulations for a certain destination, or based on applicable regulations for each destination for a plurality of destinations. The determination criteria may be stored. In the determination based on the regulations, reference data such as a regulation value, a smoothing coefficient, a quality control value, and a machine difference coefficient are used. Further, in the determination means, for example, compliance with regulations is determined for an average value, a limit value, and the like. You may further provide the graph display means which displays a measured value with a criterion on a graph.

  The determination device can be realized, for example, by controlling general-purpose computer hardware with software. As software, for example, software having a high penetration rate and having a visualization function such as Microsoft Excel (registered trademark) and VBA (Visual Basic (registered trademark) for Applications) can be used. .

  The determination apparatus according to the present invention facilitates the response to the establishment or change of regulations when determining compliance with regulations on vehicle exhaust gas or fuel consumption.

It is a figure which shows the outline of a function structure of the exhaust gas fuel consumption determination apparatus concerning embodiment. It is a figure which shows the example of the flow of a process of the exhaust gas fuel consumption determination apparatus concerning embodiment. It is a figure which shows a part of fuel consumption data for Japan. It is a figure which shows the example of the reference value used for determination. It is an example of the graph display of a 5 unit average value determination result. It is an example of the graph display of a lower limit determination result. It is an example of the graph display of an annual determination result. It is a figure which shows a part of exhaust gas data for Japan. It is an example of the graph display of five units average value determination. It is an example of the graph display of 10 unit average value determination. It is an example of the graph display of limit value determination. It is a figure which shows a part of data of the vehicle for Europe. It is an example of the list | wrist for selecting the vehicle used as judgment object. It is a figure which shows the example of a display of the selected vehicle information. It is an example of the quality control value etc. in the exhaust gas measurement for Europe. It is an example of quality control etc. registered corresponding to the selected vehicle.

  Hereinafter, embodiments will be described with reference to the drawings. In the description, specific aspects are shown for ease of understanding, but these are examples of the embodiments, and various other embodiments can be taken.

  FIG. 1 is a block diagram illustrating a functional configuration of an exhaust gas fuel consumption determination device 10 according to the present embodiment. The exhaust gas fuel consumption determination device 10 is mounted in the form of application software, and is constructed using other software such as an operation system, or computer hardware such as a CPU / memory. For example, the exhaust gas fuel consumption determination device 10 may be implemented as one application program, or may be implemented in the form of another application program for each regulation. When implemented as one application software, all processes can be performed by always starting the application program. In addition, when application software is prepared for each regulation, a specific application program is activated by the user selecting a higher-level program or selecting a higher-level program according to the application.

  As shown in FIG. 1, the exhaust gas fuel consumption determination device 10 includes a UI (user interface) 12, an exhaust gas / fuel efficiency data acquisition unit 14, a calculation formula / reference value setting unit 16, a vehicle selection processing unit 18, a setting holding unit 20, An analysis / determination processing unit 26 and a display processing unit 28 are provided.

  The UI 12 is configured using hardware including an input unit such as a keyboard, a mouse, and a touch panel, and an output unit such as a display unit (display) and a speaker. And while receiving the input from an input part, a process result is output to an output part. The exhaust gas / fuel consumption data acquisition unit 14 is configured using hardware such as a data communication unit, and when there is a data acquisition instruction, acquires data from the exhaust gas fuel consumption measurement device 10 through a network.

  The calculation formula / reference value setting unit 16 accepts and sets a calculation formula or a reference value for determination based on laws and regulations. The vehicle selection processing unit 18 receives a user input and performs a process of selecting a vehicle to be determined. Since the determination is performed for the same calculation formula and the same reference value, when a plurality of types of vehicle data exist, which vehicle is to be determined is selected.

  The setting holding unit 20 holds information set by the calculation formula / reference value setting unit 16. In the setting holding unit 20, vehicle / regulation correspondence information 22 and a regulation-specific calculation formula / reference value 24 are set and held. The vehicle / legislation correspondence information 22 is information indicating which of the laws / regulations corresponds to each destination region of the vehicle, vehicle type, weight, and transmission. The regulation-specific calculation formula / reference value 24 is information on a calculation formula or reference value to be adopted for exhaust gas or fuel consumption for each regulation. Note that when the exhaust gas fuel consumption determination device 10 is implemented as a determination device specialized for a specific law or the like, only the information on the law may be held.

  The analysis / determination processing unit 26 performs a predetermined calculation on the data of the vehicle to be determined using the corresponding calculation formula / reference value, and performs processing to determine whether or not the determination criterion is passed. The display processing unit 28 generates image data to be displayed on the display unit, and also performs processing such as graph display of the calculation result obtained by the analysis / determination processing unit 26 and character string display of the determination result.

  FIG. 2 is a diagram illustrating the flow of processing in the exhaust gas fuel consumption determination device 10. In the exhaust gas fuel consumption determination device 10, when the user gives an instruction from the UI 12, the exhaust gas / fuel consumption data acquisition unit 14 acquires data from the exhaust gas fuel consumption measurement device 10 (S10). Subsequently, from the acquired data, the vehicles are classified by destination, vehicle type, weight, and T / M (transmission), and a list is displayed excluding common data (S12). When the user selects a vehicle from this list, the selected vehicle is selected by the vehicle selection processing unit 18 (S14). Then, calculation formulas, reference data, and the like regarding the laws and regulations corresponding to the selected vehicle are read (S16), and exhaust gas / fuel consumption data calculation and determination are executed according to the read calculation formulas, numerical values, and the like (S18). The execution result is displayed as a graph on the display unit based on the user's instruction (S20). When the graph is displayed, graph image data is generated by the display processing unit 28.

  The functional configuration shown in FIGS. 1 and 2 can be implemented using various software or program languages. However, considering that a person having knowledge of exhaust gas and fuel efficiency regulations should correct it in accordance with changes in regulations, it may be more convenient to implement using widely spread software or programming languages. Therefore, in the following, an example of implementation using Microsoft Excel (registered trademark), which is a spreadsheet software with a high penetration rate, will be shown. Microsoft Excel (registered trademark) is general-purpose spreadsheet software. In Microsoft Excel (registered trademark), a macro based on a programming language called Visual Basic (registered trademark) for Applications called a VBA macro can be used as standard.

[Judgment of fuel consumption for Japan]
Here, with reference to FIGS. 3-7, the example of the process about a fuel consumption is demonstrated. 3 to 7 assume that Microsoft Excel (registered trademark) that has been programmed to determine the fuel consumption of a vehicle for Japan is started and processed. FIG. 3 is a diagram showing a worksheet displayed on the display unit when the software is started. In the worksheet selection field 30 at the bottom of the figure, five worksheet names are set. The names of the worksheets are “0.Data”, “1.Data”, “2.Adjust”, “3.COP”, and “4.Judgment”. “0.Data” and “1.Data” are worksheets in which fuel consumption data captured by software is stored. “2.Adjust” is a worksheet used in the data calculation process, and stores calculation formulas corresponding to laws and regulations. Calculations using the calculation formulas, data organization, and the like are performed. “3. COP” is a worksheet containing data of various numerical values (for example, quality control values, leveling coefficients, machine difference coefficients, initial standard deviations) according to laws and regulations. This numerical value is appropriately referred to in the calculation of “2. Adjust” and used as a reference value for determination. “4. Judgment” is a worksheet on which the determination result is displayed in a graph or the like.

  In the example of FIG. 3, “1. Data” is selected, and the corresponding worksheet is displayed at the top. In addition, a command button box 32 is displayed on the worksheet, and four command buttons “Erase”, “Import”, “Determination”, and “Graph” are stored therein. The command button is a button generated using a VBA macro and is set to perform a pre-programmed operation. For example, when the “Erase” command button is clicked, the data captured in “1.Data” is deleted. Further, when the command button of “Import” is clicked, the fuel consumption data is downloaded from the exhaust gas fuel consumption measuring device as shown in FIG. The fuel consumption data is recorded in, for example, a “.xls” type or a “.csv” type. The fuel consumption data is captured and displayed in the worksheet “1. Data”. When “fuel consumption data” is not prepared, a message indicating that it is not prepared is displayed on the display unit, and the process is interrupted. The “determination” command button performs fuel consumption determination calculation, and the “graph” command button displays the determination result.

  FIG. 3 shows a state in which data is captured as a result of pressing the “capture” command button, and the data is displayed as a table 34. In the upper part of Table 34, “factory name”, “region code”, “test number”, “engine model”, “engine code”, “regulation category”, “vehicle type”, “inertial weight”, “T / M name” (transmission name: AT ( The item of either automatic transmission or MT (manual transmission) is set. Below that, information on the vehicle on which the test was performed is input in each row. For example, in the first line, the manufactured “factory name” is “AA”, the shipped “region code” is “15”, the executed “test No.” is “111”, “ “Engine type” is “1AB-CDE”, “Engine code” is “100”, “Regulation category” is “20”, “Vehicle type” is “ABC10”, and “Inertial weight” is “ The data of the vehicle with “1230” kg and “T / M name” “AT” is input. In addition, information on a vehicle having the same model is input to the next line. In addition, although illustration is abbreviate | omitted, the numerical value which shows the fuel consumption measured about the said vehicle is further described in the data of each taken-in vehicle with the measurement date.

  In the fuel consumption determination of a vehicle for Japan, (1) five vehicle average value determination, (2) lower limit determination, and (3) annual determination are performed on the captured data. Hereinafter, these determinations will be described.

(1) Average value determination of 5 units The average value determination of 5 units is obtained as an average value of the fuel consumption measurement values of 5 units, and is determined to be acceptable if the average value is equal to or greater than the management average limit value. Here, the control average limit is determined as follows:
Control average limit value = specification value x (1-3σ '/ √5) / running coefficient / machine difference coefficient specification value is a numerical value that represents the performance of this vehicle, and is in units of km / L. Is displayed. The leveling coefficient represents the fuel consumption ratio when the vehicle travels about 3000 km in the initial state. The machine difference coefficient represents the ratio of the difference between the engineering department equipment and the factory equipment. In addition, σ ′ is obtained by dividing the fixed σ obtained from the actual value of another vehicle of the same type by the specification value, and is determined by the following equation:
σ ′ = σ / value and σ is a value fixed by weight (IW). FIG. 4 shows σ and IW data registered in the worksheet “3. COP”.

  The average of five cars is, for example, an average of 1 to 3 cars when there are three vehicles to be determined. Further, for example, when the number of target vehicles is eight, when both of the average of 1 to 5 vehicles and the average of 4 to 8 vehicles are both equal to or greater than the management average limit value, it is determined to be acceptable.

(2) Lower limit value determination The lower limit value determination is determined to be acceptable when the fuel consumption measurement value for each vehicle is greater than or equal to the lower limit management limit value. The lower control limit is determined by the following formula:
Lower limit control limit value = specification value x (1-3σ ') / leveling coefficient / machine difference coefficient Here, the specification value, leveling coefficient, machine difference coefficient, and σ' are: It is the same. For the lower limit determination, it is necessary that all fuel consumption measurement values for each vehicle are equal to or higher than the lower limit control limit value. When there is a lot of data, for example, the first year and the latest one year may be displayed at the time of graph display to be described later, so that it can be visually confirmed whether there is any problem.

(3) Annual determination In the annual determination, if the average value of the annual inspection results is equal to or greater than the management average reference value, it is determined to be acceptable. Here, the management average reference value is determined by the following formula:
Control average standard value = (Specification value-3 x 1 year standard deviation / √ (N))
/ Fixed coefficient / Machine difference coefficient
As an average value of annual test results, both one year from the first measurement date (L / O1 year) and one year counted from the last measurement date (latest year) are calculated. L / O 1 year is treated as a reference value at less than 1 year from the start of production. For the latest year, calculation is performed for the year from the last measurement date to the nearest measurement date one year ago. In the determination of the latest one year, it is determined to pass if the average value for the most recent year is equal to or greater than the management average reference value for the most recent year. For this reason, it is necessary to determine every time after one year has passed since the start of production.

  These determinations (1) to (3) are started by pressing the “determination” command button. Specifically, a calculation according to a set calculation formula is performed on the data fetched in “1.Data” on the worksheet “2.Adjust”. In the calculation, the reference data of the “3. COP” worksheet is used.

  5 to 7 are diagrams showing the results of the determination results displayed in a graph. After the determination is made, the results are sequentially displayed in a graph by pressing the “Graph” command button.

  FIG. 5 shows an example of a graph of (1) average determination of five units displayed on the worksheet “4. Judgment”. The horizontal axis is the measurement date, and the vertical axis is fuel consumption (unit: km / L). For each axis, the display range is determined after reading the maximum and minimum values so that all data is displayed. In the graph, the specification value, the average fuel consumption of the vehicle, the management average reference value, the management average limit value, and the lower limit management limit value are displayed.

  In the example of FIG. 5, the average fuel consumption of the five vehicles is greater than or equal to the management average limit value in accordance with the criteria for determining the average value of the five vehicles. Therefore, on the graph, “pass: average value of five cars is equal to or greater than the management average limit value” is displayed. Thereby, the user can recognize that the five-device average value determination has been determined to pass.

  FIG. 6 shows an example of a graph of (2) lower limit determination displayed on the worksheet “4. Judgment”. When the user presses the “Graph” command button in the state of FIG. 5, this graph is displayed. In the example shown in the drawing, a display “passed: fuel consumption is equal to or greater than the lower limit control limit value” is displayed on the graph together with a line graph in which the fuel consumption measurement value for each vehicle is equal to or greater than the lower limit control limit value.

  FIG. 7 shows an example of the (3) annual determination graph displayed on the worksheet “4. Judgment”. When the user presses the “Graph” command button in the state of FIG. 6, first, the result of L / O 1 year is displayed, and when the “Graph” command button is further pressed, the result of the latest one year is displayed. In the example of FIG. 7, along with time-series broken line data, a display “Accepted: Annual fuel consumption is equal to or greater than annual management average reference value” is displayed.

  In this way, by checking the judgment result with a graph, you can not only know whether it is pass or fail, but also how much margin you have to the judgment criteria, whether the margin is decreasing or increasing It becomes possible to grasp the situation intuitively. Note that the determination results may be displayed on the screen all together after the calculation is completed by pressing the “determination” command button, for example. As a result, the user can first confirm the conclusion and then check the data by graphing. Further, for example, a command button for switching the graph may be provided so that the graph of FIG. 6 or 5 can be displayed again after the graph of FIG. 7 is displayed.

  In this way, the user can easily perform the operation without having to have expertise in fuel consumption by simply pressing the command buttons in order. Then, processing such as creating a report using the displayed graph can be easily performed in a short time. In addition, because programming is performed using Microsoft Excel (registered trademark), which has a very high penetration rate, special formulas, quality control values, criteria values, etc. are changed due to revisions to laws and regulations. Even users who are not familiar with the programming language can expect to easily make corresponding corrections.

  In the above description, the fuel consumption determination of the vehicle for Japan was shown. The fuel efficiency determination of vehicles for other countries can be performed in the same manner.

[Determination of exhaust gas for Japan]
Next, with reference to FIGS. 8-11, the example of the process about the exhaust gas of the vehicle for Japan is demonstrated. Here, the determination of the exhaust gas will be described on the assumption that it is programmed in an electronic file different from the fuel efficiency determination. However, the basic structure is the same as that for fuel consumption determination, and description of common characteristics will be omitted or simplified as appropriate.

  FIG. 8 is a diagram illustrating the exhaust gas data captured in the worksheet “1. Data”. In the same way as in the case of FIG. 3, the data acquisition is performed by pressing the “Delete” command button in the command button box 32 to delete the existing data and then pressing the “Import” command button. In the example of FIG. 8, the captured exhaust gas data is displayed in the form of Table 40.

  In Table 40, “measurement date” “mode (NMHC)” “mode (THC)” “mode (CO)” “mode (NOx)” “mode (KNOx)” “mode (CO2)” “mode ( Each item of “NMHC (THC) + KNOx)” and “mode (PM)” is shown. Here, “measurement date” is the date on which the exhaust gas was measured, “mode (NMHC)” is the amount of non-methane hydrocarbons in the gasoline vehicle, “mode (THC)” is the total hydrocarbon amount, “mode ( "CO)" is the amount of carbon monoxide, "mode (NOx)" is the amount of nitrogen oxides, "mode (KNOx)" is the Ki value of NOx, "mode (CO2)" is the amount of carbon dioxide, and "mode (NMHC (THC)" “+ KNOx)” indicates the amount of non-methane hydrocarbons in the diesel vehicle, and “mode (PM)” indicates the amount of particulate matter. In Table 40, the measured specific value is described in each row.

  Here, the exhaust gas determination of the vehicle for Japan will be described. In the determination, (4) 5-unit average value determination, (5) 10-unit average value determination, and (6) limit value determination are performed.

(4) Five-unit average value determination In the five-unit average value determination, when the average value of the five units is equal to or less than the management reference value, it is determined to be acceptable. Here, the management reference value is determined by the following equation.
Management reference value = specification value-deterioration correction value-initial deterioration correction value The management reference value is determined for each vehicle by design.

(5) Ten-unit average value determination In the ten-unit average value determination, when the average value of the ten units is equal to or less than “management limit value−1.68σ”, it is determined to be acceptable. Here, the control limit value is determined by the following equation.
Control limit value = Control standard value + 3σ '
For σ ′, a statistically averaged value is used according to the fuel type, the exhaust gas level of each regulation, and each exhaust gas. Further, σ is a standard deviation (actual σ) obtained from actual data.

(6) Limit value determination In the limit value determination, if the exhaust gas data for each vehicle is equal to or less than the control limit value, it is determined to be acceptable. Here, the control limit value is determined by the following equation.
Control limit value = Control standard value + 3σ '
Note that σ ′ is the same as in the case of (5) 10-unit average determination value.

  When the user presses the “Decision” option button, these determinations are calculated. In the calculation, a calculation formula set in “2. Adjust” and a reference value set in “3. COP” are used.

  After the determination is made, when the user presses the “graph” option button, the determination result graph is displayed on the worksheet “4. Judgment”. FIGS. 9 to 11 are graphs and results of (4) 5-unit average value determination, (5) 10-unit average value determination, and (6) limit value determination, respectively.

  In the graph of (4) five-unit average value determination shown in FIG. 9, the average value of five NMHC units is displayed with the horizontal axis representing the date and time and the vertical axis representing the magnitude of the value. Here, among the exhaust gases, the average value of five NMHCs (non-methane hydrocarbon amount) is displayed in comparison with the management reference value (KK) and the like. The determination result indicates that “the average of five NMHCs is equal to or less than the management reference value (KK)”, indicating that the determination is acceptable.

  Subsequently, by pressing the “graph” option button, the result of (5) 10-unit average value determination shown in FIG. 10 is generated. In FIG. 10, “average of 10 NMHCs is equal to or less than a determination value” is displayed as being determined to be acceptable, and the time series state is displayed as a line graph. When the user further presses the “graph” command button, a graph of (6) limit value determination is displayed in the order of L / O 1 year and latest 1 year. In the example shown in FIG. 11, the fact that “the measured value of NMHC is equal to or less than the control limit value (KG)” and it is determined to be acceptable is displayed together with the line graph.

  In the example shown above, only the result of NMHC is shown, but determination and graphing can be similarly performed for other exhaust gas components. In the case of exhaust gas as well as fuel efficiency, by showing a time-series trend in the graph in addition to the judgment result, the user can tell how much margin is up to the reference value, and that margin is decreasing or increasing Information can be grasped intuitively visually.

  Moreover, although the exhaust gas determination for Japan has been described here, the fuel consumption determination of the vehicle for other countries can be performed in the same manner.

[Emissions and fuel consumption judgment for Europe]
Subsequently, an example of determination of exhaust gas and fuel consumption performed on a vehicle for Europe will be described with reference to FIGS. Also in this determination, the Microsoft Excel (registered trademark) software in which the function is incorporated is started and processing is performed.

  FIG. 12 shows the data displayed on the “0.Data” worksheet. Here, since the fuel consumption analysis and the exhaust gas analysis can be performed, the command button box 50 is also provided with “exhaust gas selection” and “fuel consumption selection” command buttons.

  The user presses the “delete” command button in the command button box 50 and further presses the “import” command button, thereby capturing data. In the example of FIG. 12, the “region code”, “region”, “(exhaust) regulation category code”, “(exhaust) regulation category”, “E / G format code”, “E / G format name”, “E” "/ G format", "vehicle model code", and "vehicle model" are described. In addition, items such as “weight (IW)” and “T / M name” and specific numerical values such as fuel consumption and exhaust gas are provided. And the specific data of each vehicle are described in the line from the bottom. In this example, “China 10” and “Europe 20” vehicles are mixed as destination “regions”. This is because Europe, Australia, and China have the same measurement method, so they are processed together.

  Subsequently, the data of the “0.Data” worksheet is moved to the “1.Data” worksheet, and sorted according to “region”, “vehicle type”, “weight (IW)”, and “T / M name”. And the process which removes all the duplications about these 4 items is performed. The obtained selection list data is displayed on the worksheet “4. Judgment”. FIG. 13 is a diagram illustrating an example of the displayed selection list. Here, six types of vehicle data are shown.

  The user can select a “selected vehicle” to be analyzed by clicking one of the vehicles displayed in the “selection list”. FIG. 14 is a diagram illustrating a state where the selected vehicle is displayed. “Selected vehicle” is transferred to “2.Adjust”, and calculation is performed on the selected vehicle. The user further selects whether to perform exhaust gas analysis or fuel consumption analysis for the selected vehicle. This is selected by pressing the “exhaust gas selection” command button or the “fuel consumption selection” command button. When “select fuel consumption” is pressed, information such as the quality control value of the fuel consumption of the selected vehicle stored in “3. COP” is used to determine the fuel consumption in “2. Adjust”. It is posted in the value column. In addition, when “exhaust gas selection” is selected, information such as the quality control value of the exhaust gas of the selected vehicle stored in “3. COP” is used to make an exhaust gas determination in “2. Adjust”. It is posted in the value column.

  FIG. 15 illustrates an example of the quality control value of the exhaust gas stored in “3. COP”. Here, as the component 01 to the component 09, each contained component from the mode (NMHC) to the mode (PN) is set. For these, "STD", "STD / DF (KG)", "DF (deterioration coefficient)", and "other coefficients" are registered for "region", "vehicle model", "weight (IW)", and "T / M name". Has been. Specifically, vehicle data having characteristics of “10: AAA1223: 1000: AT” and “20: ABC123: 1500: AT” is illustrated as a vehicle.

  FIG. 16 shows an example of reference data for exhaust gas determination registered in “2. Adjust” after the selected vehicle is selected. Here, as in FIG. 15, columns of each component from mode (NMHC) to mode (PN) are provided as component 01 to component 09. Then, correspondence data for the selected vehicle is registered from the table of FIG. 15, and further necessary data such as KK (management reference value) is calculated by a calculation formula embedded in the worksheet.

  Subsequently, an example of European exhaust gas determination will be described. When the “determination” command button is pressed, (7) average value determination for five units, (8) average value determination for ten units, and (9) limit value determination are sequentially performed. These determinations are made as follows.

(7) Five-unit average value determination In the five-unit average value determination, it is determined to pass if the average value of the five units is less than or equal to the management reference value (KK). Here, although the management reference value (KK) and the quality control value depend on the situation, for example, the following formula is used.
Control standard value (KK) = quality control value−3σ
Quality control value = regulation value / leveling coefficient / EC / Ki
Here, σ is 15% of the quality control value in the case of 10 or less in the initial stage. For 21 units or less, σ (actual σ) obtained from the measured value is used. For 21 units or more, the latest 21 actual σ is assumed.

(8) Average value determination of 10 vehicles The average of 10 vehicles is calculated | required and it determines with a pass when it is below management limit value (KG) -1.68 (sigma). Here, the control limit value (KG) depends on the situation, but for example, the following formula is used.
Control limit value (KG) = control standard value + 3σ

(9) Limit value determination When the exhaust gas data of each vehicle is equal to or less than the control limit value (KG), it is determined to be acceptable. Here, although the management limit value (KG) depends on the situation, for example, the following formula is used.
Control limit value (KG) = control standard value + 3σ

  After the determination is made, a data graph is displayed by pressing the “graph” command button, as in the case of Japan.

  On the other hand, in the situation of FIG. 14, when the “determination” command button is pressed after the “fuel consumption analysis” command button is pressed, the fuel consumption is determined. For fuel economy determination in Europe, (10) average value determination for five units, (11) R determination, and (12) COP determination are performed for each of Urban, Extra Urban, and Combine. Here, “urban” refers to the fuel consumption of traveling in an urban area, “extra urban” refers to the fuel consumption of traveling in a suburb, and “combine” refers to the fuel efficiency of traveling in both an urban area and a suburb. The criteria for these determinations are as follows.

(10) Five-unit average value determination In the five-unit average value determination, it is determined to be a pass when XLCL is greater than or equal to XUCL. Here, XLCL and XUCL are determined by the following equations.
XLCL = total average−0.577 × R average XUCL = total average + 0.577 × R average

(11) R determination R determination is a range determination, and is determined to be acceptable when the value of R is RUCL or less. Here, R and RUCL are defined by the following equations.
R = Max-Min
RUCL = 2.115 × R average

(12) COP determination In COP determination, when the determination target value is equal to or greater than the pass determination value and equal to or greater than the fail determination value, it is determined to be acceptable. Here, the determination target value is determined by the following equation.
Determination target value = (quality control value−X) / σ
Note that σ uses the standard deviation (actual σ) of measurement data of 15% or less for 10 units or less, 21 for 21 units or less, and the latest 21 actual σ for 22 units or more. X is the average of the measured values up to 21 units. For 22 units or more, the average value of the latest 21 units is used.

  After the fuel consumption determination is performed, a data graph is displayed by pressing the “graph” command button, as in the case of Japan.

  In the example described above, the mode in which the fuel consumption judgment and the exhaust gas judgment of the vehicle for Europe is performed by the same software (electronic file) of Microsoft Excel (registered trademark) is shown. In addition, as described above, since the applicable laws and regulations are common for Europe, Australia, and China, they can be incorporated into the same software. And it became possible to determine about the fuel consumption and exhaust gas of various vehicles by selecting a vehicle and also selecting fuel consumption and exhaust gas.

  For vehicles destined for Japan, it is possible to determine the exhaust gas and fuel consumption using the same software. The determination for Japan and for Europe may be performed with the same software, or the determination of vehicles at all destinations may be performed with the same software. As a result, the user can make a determination on the target country simply by starting the same software.

  On the other hand, for Europe, fuel consumption determination and exhaust gas determination may be performed by separate software. In this way, the software structure is simplified by dividing the software according to the application. As a result, it is possible to simplify the work for changing the management reference value and the like, and to suppress or prevent the occurrence of programming mistakes.

  Note that programming generally has a large degree of design freedom. For example, in the example shown above, the “delete” command button is provided in the command button boxes 32 and 50 and the user explicitly deletes the data. This is automatically performed when the software is started. You may change so that it may delete. In addition, for example, the processing order may be changed as appropriate, for example, data acquisition is performed after the “determination” command button is pressed.

  10 exhaust gas fuel efficiency judgment device, 14 exhaust gas / fuel efficiency data acquisition unit, 16 calculation formula / reference value setting unit, 18 vehicle selection processing unit, 20 setting holding unit, 22 vehicle / regulation correspondence information, 24 legal calculation formula / reference value, 26 Analysis / determination processing section, 28 Display processing section, 30 Worksheet selection field, 32, 50 Command button box.

Claims (1)

A storage means for storing a determination criterion for each vehicle type to which a regulation is applied, regarding at least one measurement value of exhaust gas or fuel consumption of a vehicle;
Input means for inputting the vehicle type information of the vehicle to be determined and the measured value for the vehicle;
An acquisition means for acquiring the determination criterion applied to the vehicle based on the vehicle type information of the input vehicle;
A determination means for determining compliance with laws and regulations based on the acquired determination criterion for the input measurement value of the vehicle;
An exhaust gas fuel consumption determination apparatus for vehicles, comprising: