Diesel locomotive fuel economy evaluation method and system
By integrating sensors and data analysis, the fuel economy assessment method for internal combustion locomotives has solved the problem of high fuel consumption, achieving accurate assessment and cost reduction.
Patent Information
- Application Number
- CN202511646212.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-02-06
AI Technical Summary
The lack of accurate methods for assessing the fuel economy of diesel locomotives in current technology leads to high fuel costs, which in turn affects the economic benefits of railways.
By integrating multi-source sensors, the real-time fuel consumption and mileage of the internal combustion locomotive are obtained. Combined with the phased plan and freight formation, the fuel consumption per unit and the proportion of fuel consumption during operation are calculated to conduct an accurate fuel economy assessment.
It enables a refined assessment of the fuel economy of internal combustion locomotives, helping to identify influencing factors, reduce fuel consumption, and improve economic efficiency.
Smart Images
Figure CN121480964A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of internal combustion locomotive technology, and in particular to a method and system for evaluating the fuel economy of internal combustion locomotives. Background Technology
[0002] In railway operations, fuel consumption costs for diesel locomotives are the most significant expense for locomotive depots. Industry data shows that fuel costs typically account for over 60% of total expenses for locomotive depots, and in some companies, this figure exceeds 70%. Therefore, the fuel economy of diesel locomotives has become a key factor influencing the economic efficiency of railways.
[0003] The fuel economy of diesel locomotives is affected by a variety of factors, including locomotive performance, driver's operating skills, and operational continuity. For example, poor fuel injector atomization, insufficient cylinder compression pressure, or inefficient cooling systems can lead to incomplete fuel combustion, reducing effective power utilization by 10%-15% and thus lowering fuel economy. Conversely, precise control and appropriate kinetic energy coasting can significantly reduce fuel consumption and improve fuel economy in areas with steep gradients and numerous curves. Furthermore, improving operational continuity, reducing the number of start-stop assessments, and minimizing the time spent with the engine running can also significantly improve the fuel economy of diesel locomotives.
[0004] To reduce fuel costs for diesel locomotives, accurately analyzing their fuel economy, conducting correlation analysis based on fuel economy indicators, and identifying key factors affecting fuel economy have become concerns for railway operators. Therefore, there is an urgent need for an assessment method and system that can accurately analyze the fuel economy of diesel locomotives. Summary of the Invention
[0005] The purpose of this invention is to provide a method and system for evaluating the fuel economy of diesel locomotives. Addressing the lack of effective analytical methods for assessing the fuel economy of diesel locomotives, a key factor affecting railway economic efficiency, this invention integrates multi-source sensors on a phased planning basis to acquire real-time fuel consumption and mileage values of the locomotive. By combining this data with the locomotive's freight train formation and through matching and correlation among multi-dimensional data, a precise analysis of the fuel economy of diesel locomotives is achieved.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: The first aspect of this invention provides a method for evaluating the fuel economy of an internal combustion locomotive, comprising: A phase plan is prepared, and the execution process of the phase plan is recorded. The phase plan includes at least the train number, locomotive number, origin station, destination station, and stations along the route of the diesel locomotive. During the execution of the phase plan, the fuel consumption and mileage of the internal combustion locomotive are monitored by sensors; Match the phase plan with the corresponding freight train formation, and calculate the traction weight of the diesel locomotive based on the freight train formation; Based on the traction weight of the diesel locomotive, combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan, the fuel consumption per unit of the diesel locomotive is calculated; based on the execution of the phase plan, the percentage of fuel consumption during operation of the diesel locomotive is calculated. Fuel economy is assessed based on the fuel consumption per unit of the internal combustion locomotive and the proportion of fuel consumption during operation.
[0007] Optionally, recording the execution process of the phase plan includes: During the execution of the phase plan, the arrival and departure times of the diesel locomotive at the starting station, the terminal station, and the stations along the way are recorded; After the diesel locomotive arrives at the terminal station, the phase plan is set to the completed state.
[0008] Optionally, the freight train formation includes at least the number of wagons, the type of wagons, the weight of the wagons, and the quantity of cargo carried.
[0009] Optionally, after the diesel locomotive starts, the fuel consumption and mileage values observed by the sensors are transmitted to the ground server in real time.
[0010] Optionally, the fuel consumption and mileage values received by the ground server are subjected to time-series-based sliding window noise reduction processing.
[0011] Optionally, the sensor includes a flow meter for observing the fuel consumption of the internal combustion locomotive, the flow meter being a turbine flow meter or a clamp flow meter.
[0012] Optionally, the sampling frequency and sampling accuracy of the flow meter are determined according to the accuracy requirements of the fuel economy assessment.
[0013] Optionally, the sensor includes a wheeled odometer for observing the mileage of the internal combustion locomotive.
[0014] Optionally, the sensor includes a GPS (Global Positioning System), and the mileage of the internal combustion locomotive is calculated based on the positioning results of the GPS.
[0015] Optionally, calculating the fuel consumption per unit of the internal combustion locomotive includes: Using the phase plan as a unit, the cumulative mileage value of the diesel locomotive during the execution of the phase plan is obtained, and the product of the cumulative mileage value and the traction weight of the diesel locomotive is calculated. The calculation result is used as the operating ton-kilometer of the diesel locomotive. The cumulative fuel consumption of the internal combustion locomotive during the execution of the phase plan is obtained, and the ratio of the cumulative fuel consumption to the operating ton-kilometers of the internal combustion locomotive is calculated. The calculation result is used as the fuel consumption per unit area of the internal combustion locomotive.
[0016] Optionally, calculating the fuel consumption ratio during operation of the internal combustion locomotive includes: Based on the execution process of the phase plan and the observation of the fuel consumption of the diesel locomotive, the proportion of running fuel consumption to cumulative fuel consumption is calculated. Running fuel consumption includes the fuel consumption actually generated by the diesel locomotive during the execution of the phase plan, including at least the fuel consumption generated by traction acceleration, constant speed operation, coasting, and braking.
[0017] Optionally, the fuel economy assessment based on the fuel consumption per unit and the proportion of fuel consumption during operation of the internal combustion locomotive includes: Using factors affecting fuel economy as inputs and fuel economy indicators as results, a correlation analysis was conducted. The factors affecting fuel economy include at least the operators, operating time, traction weight, and locomotive model of the diesel locomotive; the fuel economy indicators include at least the fuel consumption per unit of fuel consumption and the proportion of fuel consumption during operation of the diesel locomotive.
[0018] Optionally, the fuel consumption and mileage values observed by the sensor are matched with the phase plan, and fuel economy is evaluated from different dimensions by accumulating or breaking down the phase plan.
[0019] Optionally, matching the phase plan and the corresponding freight train formation includes: determining the corresponding freight train formation based on the train number of the diesel locomotive in the phase plan.
[0020] A second aspect of the present invention provides a fuel economy evaluation system for internal combustion locomotives, comprising: The operation management module is used to prepare phase plans, record and store the execution process of the phase plans, and freight marshalling. The phase plans include at least the train number, locomotive number, origin station, destination station and transit stations of the diesel locomotive. Sensors are used to observe the fuel consumption and mileage of the internal combustion locomotive during the execution of the phase plan. An analysis module is used to match the phase plan with the corresponding freight train formation, and calculate the traction weight of the diesel locomotive based on the freight train formation; The analysis module is also used to calculate the fuel consumption per unit of the diesel locomotive based on its traction weight, combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan; to calculate the running fuel consumption ratio of the diesel locomotive based on the execution of the phase plan; and to conduct a fuel economy assessment based on the fuel consumption per unit of the diesel locomotive and the running fuel consumption ratio.
[0021] Optionally, the internal combustion locomotive fuel economy assessment system further includes a ground server, which is used to acquire the fuel consumption and mileage values observed by the sensors after the internal combustion locomotive is started.
[0022] Optionally, the ground server is also used to perform time-series-based sliding window noise reduction processing on the received fuel consumption and mileage values.
[0023] Optionally, the analysis module is used to perform correlation analysis using fuel economy influencing factors as input and fuel economy indicators as results. The factors affecting fuel economy include at least the operators, operating time, traction weight, and locomotive model of the diesel locomotive; the fuel economy indicators include at least the fuel consumption per unit of fuel consumption and the proportion of fuel consumption during operation of the diesel locomotive.
[0024] This invention has at least the following technical effects: By integrating sensors, the fuel consumption and mileage of diesel locomotives can be observed and acquired simultaneously. This method has a wide range of applications, low investment costs, and is convenient for calculating the fuel consumption per unit and the proportion of fuel consumption during operation of diesel locomotives in conjunction with phased plans and freight formations. By using phased plans as the basic unit and analyzing the fuel consumption per unit and the proportion of fuel consumption during operation of diesel locomotives, a refined assessment of the fuel economy of diesel locomotives is achieved. This facilitates the capture of key factors affecting the fuel economy of locomotives through correlation analysis, and assists locomotive depots in carrying out fuel-saving work. Attached Figure Description
[0025] Figure 1 This is a flowchart illustrating a method for evaluating the fuel economy of internal combustion locomotives according to an embodiment of the present invention. Detailed Implementation
[0026] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the fuel economy evaluation method for internal combustion locomotives proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of this invention. Please refer to the drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.
[0027] like Figure 1 As shown in the figure, this embodiment provides a method for evaluating the fuel economy of internal combustion locomotives, including: Prepare a phase plan and record the execution process of the phase plan. The phase plan shall include at least the train number, locomotive number, origin station, destination station and stations along the way of the diesel locomotive. During the execution of the phased plan, the fuel consumption and mileage of the internal combustion locomotive are monitored by sensors; Match the phase plan with the corresponding freight train formation, and calculate the traction weight of the diesel locomotive based on the freight train formation; Based on the traction weight of the diesel locomotive, combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan, the fuel consumption per unit of the diesel locomotive is calculated; based on the execution process of the phase plan, the proportion of fuel consumption during operation of the diesel locomotive is calculated. Fuel economy is assessed based on the unit fuel consumption and the proportion of fuel consumption during operation of internal combustion locomotives.
[0028] Specifically, in this embodiment, recording the execution process of the phase plan includes: recording the arrival and departure times of the diesel locomotives from the starting station, the destination station, and the stations along the way; and setting the phase plan to a completed state after the diesel locomotives arrive at the destination station. Specifically, the start time of the phase plan can be the time when the diesel locomotives leave the starting position, and the completion time can be the time when the entire train of diesel locomotives enters the destination station. Further, during the execution of the phase plan, after the diesel locomotives arrive at the station, the dispatching and monitoring system or staff can determine and set the corresponding node in the phase plan as the actual arrival to ensure the accurate completion of the phase plan.
[0029] Furthermore, to match the phased plan with the corresponding freight train formations, the corresponding freight train formations can be determined based on the locomotive numbers in the phased plan, thereby recording the freight information of the trains hauled by the diesel locomotives. Specifically, the freight train formation includes at least the number of wagons, wagon type, wagon weight, and cargo quantity. Based on the number of wagons, wagon type, and wagon weight, the total tare weight of the wagons can be obtained. Combined with the cargo quantity, the total load capacity of the wagons can be further obtained. The sum of the two is the traction weight of the diesel locomotive.
[0030] Furthermore, after the diesel locomotive starts, sensors can be used to monitor the fuel consumption and mileage of the locomotive and transmit this data to the ground server in real time.
[0031] In this embodiment, the sensor includes a flow meter for observing the fuel consumption of the diesel locomotive. The flow meter is either a turbine flow meter or a clamp flow meter. In some embodiments, for certain models of diesel locomotives, their built-in flow meters can be used to further save costs. In other embodiments, the flow meter can be added by modifying the engine of the diesel locomotive; for example, a turbine flow meter or a clamp flow meter can be installed on the fuel line. Specifically, in this embodiment, the sampling frequency and sampling accuracy of the flow meter can be determined according to the accuracy requirements of fuel economy assessment.
[0032] In some embodiments, the sensor includes a wheeled odometer for observing the mileage of the diesel locomotive; similarly, for certain models of diesel locomotives, their built-in odometer may be used. In other embodiments, the sensor includes a GPS, and the mileage of the diesel locomotive can be calculated based on GPS positioning results.
[0033] Furthermore, in this embodiment, GPS time can be used for all timing to ensure the accuracy of the data collection results. By adopting a unified timing method, it is easy to extract the fuel consumption and mileage of the internal combustion locomotive within a corresponding time range using a unified benchmark, ensuring the accuracy of the evaluation results and realizing the fusion of multi-source data. After data collection is completed, it can be transmitted to the ground server via the Internet of Things through the communication module, and then stored by the interface program in the ground server. Specifically, data can be transmitted to the ground server every 10 seconds via a 4G communication module.
[0034] When acquiring fuel consumption and mileage values of diesel locomotives, considering the operational and fuel consumption characteristics of these locomotives, filtering and denoising are necessary to reduce white noise interference with the system. Specifically, time-series-based sliding window denoising can be applied to the fuel consumption and mileage values received from the ground server. As those skilled in the art will understand, the core idea of sliding window denoising is to slide a fixed-size window across the time-series data, processing the data within the window to smooth noise. As a time-domain method that suppresses noise through local smoothing, it is suitable for processing time-series data with clear trends and randomly distributed noise.
[0035] In this embodiment, to calculate the fuel consumption per unit of a diesel locomotive, the cumulative mileage of the locomotive during the execution of a phase plan can be obtained, and the product of the cumulative mileage and the locomotive's traction weight can be calculated. The result is then used as the locomotive's operating ton-kilometers. Furthermore, the cumulative fuel consumption of the locomotive during the execution of the phase plan can be obtained, and the ratio of the cumulative fuel consumption to the locomotive's operating ton-kilometers can be calculated. The result is then used as the locomotive's fuel consumption per unit of fuel.
[0036] In this embodiment, to calculate the proportion of fuel consumption during operation of the diesel locomotive, the execution process of the phase plan and the observed fuel consumption of the diesel locomotive can be combined to calculate the proportion of fuel consumption during operation to the cumulative fuel consumption. Here, fuel consumption during operation refers to the fuel consumption actually generated by the diesel locomotive during the execution of the phase plan, including fuel consumption generated during traction acceleration, constant speed operation, coasting, and braking. Fuel consumption generated by the diesel locomotive at other times is considered invalid fuel consumption, such as fuel consumption during fire-lit stops and standby fuel consumption during phase plan intervals.
[0037] After calculating the fuel consumption per unit and the percentage of fuel consumption during operation for diesel locomotives, a further fuel economy assessment can be conducted. Specifically, fuel economy influencing factors can be used as inputs, and fuel economy indicators as results, to perform correlation analysis to assess the impact of one or more fuel economy influencing factors on fuel economy. These factors include at least the personnel operating the diesel locomotive, operating time, traction weight, and locomotive model; the fuel economy indicators include at least the fuel consumption per unit and the percentage of fuel consumption during operation for diesel locomotives.
[0038] For example, regarding fuel consumption per unit area, economic evaluation can be conducted by controlling variables. This involves analyzing the phases of the plan where fuel consumption is highest, considering factors such as the number of operators, operating time, and traction weight. Furthermore, correlation analysis can be used to identify key factors affecting the locomotive's fuel economy. As for the proportion of fuel consumption during operation, the operational continuity of the diesel locomotive can be assessed based on the percentage of ineffective fuel consumption, such as fuel consumption during engine shutdowns, relative to total fuel consumption.
[0039] In some embodiments, fuel consumption and mileage values observed by sensors can be matched with phased plans. By accumulating or breaking down the phased plans, fuel economy can be assessed from different dimensions. Specifically, assessments can be conducted from different dimensions such as driver shifts, locomotive usage, lines or sections, and time periods. For example, when assessing from the perspective of driver shifts, the average fuel consumption per unit area for each driver can be calculated by measuring the total operating ton-kilometers and total fuel consumption of different drivers within a set time range, thereby identifying drivers with significant fuel-saving effects. As another example, when assessing from the perspective of locomotive usage, the long-term average fuel consumption per unit area of the locomotive can be calculated to monitor its performance trends, thereby enabling predictive maintenance and optimizing locomotive maintenance plans.
[0040] The fuel economy evaluation method for diesel locomotives provided in this embodiment will be further explained below with more specific examples. First, it is necessary to compile a phase plan based on train scheduling. The phase plan includes information such as train number, locomotive number, origin station, destination station and intermediate stations, and arrival time. For specific details, please refer to Table 1 below. Table 1 After a train arrives at a station, the operation status at that station can be marked as completed, and the arrival time can be recorded. For example, referring to Table 1 above, after train 92701 arrives at station B, the arrival time of 1:30 can be recorded, and the operation status at that station can be marked as completed.
[0041] Furthermore, the corresponding freight marshalling can be found based on the train numbers in the phase plan, establishing a connection between the two. A freight marshalling consists of multiple wagons, each with information such as its number, tare weight, and payload.
[0042] After receiving mileage and fuel consumption data, the ground server can smooth the data to remove white noise and store it in the database. Upon completion of a phase plan, the weight of the railcars can be accumulated to obtain the traction weight, which is then stored in the phase plan.
[0043] Furthermore, fuel consumption can be calculated on a phased basis. Taking the phased plan in the table above as an example, assuming the diesel locomotive arrives at station D at 5:00, the cumulative mileage of the diesel locomotive from station A to station D, i.e., from 1:00 to 5:00, can be retrieved. Multiplying the cumulative mileage by the tractor weight yields the operating ton-kilometers of the diesel locomotive. By querying the observed fuel consumption data, the cumulative fuel consumption during the operation of the diesel locomotive can be obtained. ， The fuel consumption per unit of a diesel locomotive is obtained by dividing the cumulative fuel consumption by the operating ton-kilometers.
[0044] Furthermore, based on the phased plan execution time, the fuel consumption of diesel locomotives can be divided into operating fuel consumption and ineffective fuel consumption. The fuel consumption actually in operation is taken as operating fuel consumption, and the fuel consumption generated by the diesel locomotive at other times is taken as ineffective fuel consumption. By calculating the proportion of operating fuel consumption to cumulative fuel consumption, the operating fuel consumption ratio can be obtained.
[0045] Finally, by using factors such as operators, operating time, traction weight, and locomotive model as inputs, and fuel consumption per unit and fuel consumption ratio during operation as results, a correlation analysis can be conducted to analyze the causes of high fuel consumption, which can be used as a reference for locomotive depot personnel.
[0046] In other aspects, this embodiment also provides a fuel economy evaluation system for diesel locomotives, including an operation management module, sensors, and an analysis module. The operation management module is used to generate phased plans and record and store the execution process of the phased plans for freight train formations. The sensors are used to observe the fuel consumption and mileage of the diesel locomotive during the execution of the phased plans.
[0047] The analysis module is used to match the phase plan with the corresponding freight train formations, and calculate the traction weight of the diesel locomotives based on the freight train formations. The analysis module is also used to calculate the fuel consumption per unit of the diesel locomotive based on its traction weight, combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan; to calculate the operating fuel consumption ratio of the diesel locomotive based on the execution of the phase plan; and to conduct a fuel economy assessment based on the fuel consumption per unit of the diesel locomotive and the operating fuel consumption ratio.
[0048] Furthermore, the diesel locomotive fuel economy assessment system also includes a ground server, which acquires fuel consumption and mileage values observed by sensors after the locomotive starts. The ground server is also used to perform time-series-based sliding window noise reduction processing on the received fuel consumption and mileage values.
[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0050] It should be noted that the apparatus and methods disclosed in the embodiments herein can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments herein. In this regard, each block in a flowchart or block diagram may represent a module, program, or part of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system to perform the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.
[0051] In addition, the functional modules in the various embodiments of this article can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.
[0052] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A method for evaluating the fuel economy of internal combustion locomotives, characterized in that, include: A phase plan is prepared, and the execution process of the phase plan is recorded. The phase plan includes at least the train number, locomotive number, origin station, destination station, and stations along the route of the diesel locomotive. During the execution of the phase plan, the fuel consumption and mileage of the internal combustion locomotive are monitored by sensors; Match the phase plan with the corresponding freight train formation, and calculate the traction weight of the diesel locomotive based on the freight train formation; Based on the traction weight of the diesel locomotive, and combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan, the fuel consumption per unit of the diesel locomotive is calculated. Based on the execution process of the aforementioned phase plan, the percentage of fuel consumption during the operation of the internal combustion locomotive is calculated. Fuel economy is assessed based on the fuel consumption per unit of the internal combustion locomotive and the proportion of fuel consumption during operation.
2. The fuel economy evaluation method for internal combustion locomotives according to claim 1, characterized in that, The recording of the execution process of the phase plan includes: During the execution of the phase plan, the arrival and departure times of the diesel locomotive at the starting station, the terminal station, and the stations along the way are recorded; After the diesel locomotive arrives at the terminal station, the phase plan is set to the completed state.
3. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The freight marshalling group shall include at least the number of wagons, the type of wagons, the weight of the wagons, and the quantity of cargo carried.
4. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, After the internal combustion locomotive starts, it transmits the fuel consumption and mileage values observed by the sensors to the ground server in real time.
5. The method for evaluating the fuel economy of internal combustion locomotives according to claim 4, characterized in that, The fuel consumption and mileage values received by the ground server are subjected to time-series-based sliding window noise reduction processing.
6. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The sensor includes a flow meter for observing the fuel consumption of the internal combustion locomotive, the flow meter being a turbine flow meter or a clamp flow meter.
7. The method for evaluating the fuel economy of internal combustion locomotives according to claim 6, characterized in that, The sampling frequency and sampling accuracy of the flow meter are determined based on the accuracy requirements of the fuel economy assessment.
8. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The sensor includes a wheeled odometer for observing the mileage of the internal combustion locomotive.
9. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The sensor includes a GPS, and the mileage of the internal combustion locomotive is calculated based on the positioning results of the GPS.
10. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The calculation of the fuel consumption per unit of the internal combustion locomotive includes: Using the phase plan as a unit, the cumulative mileage value of the diesel locomotive during the execution of the phase plan is obtained, and the product of the cumulative mileage value and the traction weight of the diesel locomotive is calculated. The calculation result is used as the operating ton-kilometer of the diesel locomotive. The cumulative fuel consumption of the internal combustion locomotive during the execution of the phase plan is obtained, and the ratio of the cumulative fuel consumption to the operating ton-kilometers of the internal combustion locomotive is calculated. The calculation result is used as the fuel consumption per unit area of the internal combustion locomotive.
11. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The calculation of the fuel consumption ratio during operation of the internal combustion locomotive includes: Based on the execution process of the phase plan and the observation of the fuel consumption of the diesel locomotive, the proportion of running fuel consumption to cumulative fuel consumption is calculated. Running fuel consumption includes the fuel consumption actually generated by the diesel locomotive during the execution of the phase plan, including at least the fuel consumption generated by traction acceleration, constant speed operation, coasting, and braking.
12. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The fuel economy assessment based on the fuel consumption per unit and the proportion of fuel consumption during operation of the internal combustion locomotive includes: Using factors affecting fuel economy as inputs and fuel economy indicators as results, a correlation analysis was conducted. The factors affecting fuel economy include at least the operators, operating time, traction weight, and locomotive model of the diesel locomotive; the fuel economy indicators include at least the fuel consumption per unit of fuel consumption and the proportion of fuel consumption during operation of the diesel locomotive.
13. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The fuel consumption and mileage values observed by the sensors are matched with the phase plan, and fuel economy is evaluated from different dimensions by accumulating or breaking down the phase plan.
14. The method for evaluating the fuel economy of internal combustion locomotives according to claim 1, characterized in that, The matching of the phase plan and the corresponding freight train formation includes: determining the corresponding freight train formation based on the train number of the diesel locomotive in the phase plan.
15. A fuel economy evaluation system for internal combustion locomotives, characterized in that, include: The operation management module is used to prepare phase plans, record and store the execution process of the phase plans, and freight marshalling. The phase plans include at least the train number, locomotive number, origin station, destination station and transit stations of the diesel locomotive. Sensors are used to observe the fuel consumption and mileage of the internal combustion locomotive during the execution of the phase plan. An analysis module is used to match the phase plan with the corresponding freight train formation, and calculate the traction weight of the diesel locomotive based on the freight train formation; The analysis module is also used to calculate the fuel consumption per unit of the diesel locomotive based on its traction weight, combined with the cumulative fuel consumption and cumulative mileage of the diesel locomotive during the execution of the phase plan. Based on the execution process of the aforementioned phase plan, the percentage of fuel consumption during the operation of the internal combustion locomotive is calculated. And fuel economy assessment based on the fuel consumption per unit of the internal combustion locomotive and the proportion of fuel consumption during operation.
16. The fuel economy evaluation system for internal combustion locomotives according to claim 15, characterized in that, It also includes a ground server, which is used to acquire the fuel consumption and mileage values observed by the sensors after the internal combustion locomotive is started.
17. The fuel economy evaluation system for internal combustion locomotives according to claim 16, characterized in that, The ground server is also used to perform time-series-based sliding window noise reduction processing on the received fuel consumption and mileage values.
18. The fuel economy evaluation system for internal combustion locomotives according to claim 15, characterized in that, The analysis module is used to perform correlation analysis using fuel economy influencing factors as input and fuel economy indicators as results. The factors affecting fuel economy include at least the operators, operating time, traction weight, and locomotive model of the diesel locomotive; the fuel economy indicators include at least the fuel consumption per unit of fuel consumption and the proportion of fuel consumption during operation of the diesel locomotive.