A locomotive lubricating oil detection method and system

Abstract

This invention discloses a method and system for detecting lubricating oil in locomotives. The method includes: generating and storing fuel pressure abnormality information if the first fuel pressure sensing data and / or the second fuel pressure sensing data are less than a fuel pressure threshold; determining whether the oil parameter monitoring sensing data are the same as the oil change index, and if they are different, generating and storing oil abnormality information; acquiring and storing lubricating oil temperature sensing data; generating and storing filter lubricating oil abnormality information if the value of the second filter lubricating oil sensing data is greater than the value of the first filter lubricating oil sensing data and is greater than a first threshold; and generating and storing turbocharger lubricating oil abnormality information if the value of the second turbocharger lubricating oil sensing data is greater than the value of the first turbocharger lubricating oil sensing data and is greater than a second threshold.

Description

Technical Field

[0001] The embodiments of the present invention relate to automated detection technology, and more particularly to a method and system for detecting lubricating oil in locomotives. Background Technology

[0002] Currently, the fuel filter, lubricating oil filter, and lubricating oil of the GK1C locomotive diesel engine are replaced based on usage time and mileage. However, the lack of real-time data and supporting technical parameters for oil quality (viscosity, moisture, flash point, insoluble matter) easily leads to waste of lubricating oil and filters, increasing maintenance costs. The existing GK1C locomotive diesel engine cooling water temperature, fuel pressure, and lubricating oil temperature and pressure are simply detected by sensors in the positive pressure section of the oil and water pipelines and displayed visually on the control panel. When abnormalities occur in the lubrication system, such as cooling water temperature, oil temperature, oil pressure, or oil quality (viscosity, moisture, flash point, insoluble matter), causing the diesel engine to unload or stop, the driver and maintenance personnel cannot quickly and accurately determine the cause of the fault in the water system, fuel system, or lubricating oil system, increasing troubleshooting time and affecting production. Summary of the Invention

[0003] This invention provides a method and system for detecting lubricating oil in locomotives, aiming to solve at least one defect in the prior art.

[0004] In a first aspect, embodiments of the present invention provide a method for detecting locomotive lubricating oil, comprising:

[0005] Acquire first fuel pressure sensor data and second fuel pressure sensor data. If the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold, generate and store fuel pressure abnormality information.

[0006] Acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information.

[0007] Acquire lubricating oil temperature sensing data and store the lubricating oil temperature sensing data;

[0008] Acquire lubricating oil pressure sensing data of the first filter and lubricating oil pressure sensing data of the second filter;

[0009] If the value of the second filter lubricating oil pressure sensor data is greater than the value of the first filter lubricating oil pressure sensor data and is greater than the first threshold, then filter lubricating oil abnormal information is generated and stored.

[0010] Acquire lubricating oil pressure sensor data for the first turbocharger and the second turbocharger;

[0011] If the value of the second booster compressor lubricating oil pressure sensor data is greater than the value of the first filter booster compressor lubricating oil pressure sensor data, and the value is greater than the second threshold, then booster compressor lubricating oil abnormal information is generated and stored.

[0012] If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command is generated.

[0013] If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command is generated.

[0014] Acquire first water temperature sensor data and second water temperature sensor data. If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than a first temperature threshold, then generate and store water pump abnormal information.

[0015] Acquire third water temperature sensor data; if the third water temperature sensor data is greater than the second temperature threshold, generate and store water temperature anomaly information.

[0016] If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated.

[0017] Acquire the fourth water temperature sensor data and the fifth water temperature sensor data. If the value of the fourth water temperature sensor data is greater than the value of the fifth water temperature sensor data and is greater than the fourth temperature threshold, then generate and store the intercooler abnormality information.

[0018] Optionally, it also includes determining whether the first filter lubricating oil pressure sensing data is within a first numerical range;

[0019] If the first filter lubricating oil pressure sensing data is within the first value range, and the second filter lubricating oil pressure sensing data is greater than the first filter lubricating oil pressure sensing data by a value greater than a first threshold, then filter lubricating oil abnormal information is generated and stored.

[0020] Optionally, the first numerical range is 250 to 600 KP.

[0021] Optionally, it also includes determining whether the first booster oil pressure sensor data is within the second value range;

[0022] If the first booster oil pressure sensor data is within the second value range, and the second booster oil pressure sensor data is greater than the value of the first filter booster oil pressure sensor data by more than the second threshold, then booster oil abnormality information is generated and stored.

[0023] Optionally, the second numerical range is 250 to 400 KP.

[0024] Optionally, the oil parameter monitoring sensor data includes viscosity values, moisture values, flash point values, and insoluble matter values.

[0025] Secondly, embodiments of the present invention also provide a locomotive lubricating oil detection system, including a signal acquisition module, a lubricating oil analysis module, a data analysis module, and a terminal module;

[0026] The signal acquisition module is used to acquire the following data: first fuel pressure sensor data, second fuel pressure sensor data, lubricating oil temperature sensor data, first filter lubricating oil pressure sensor data, second filter lubricating oil pressure sensor data, first turbocharger lubricating oil pressure sensor data, second turbocharger lubricating oil pressure sensor data, first water temperature sensor data, second water temperature sensor data, third water temperature sensor data, fourth water temperature sensor data, and fifth water temperature sensor data.

[0027] The data analysis module is used to generate and store abnormal fuel pressure information when the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold.

[0028] Store the lubricating oil temperature sensing data;

[0029] If the value of the second filter lubricating oil pressure sensor data is greater than the value of the first filter lubricating oil pressure sensor data and is greater than the first threshold, then filter lubricating oil abnormal information is generated and stored.

[0030] If the value of the second booster compressor lubricating oil pressure sensor data is greater than the value of the first filter booster compressor lubricating oil pressure sensor data, and the value is greater than the second threshold, then booster compressor lubricating oil abnormal information is generated and stored.

[0031] If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command is generated.

[0032] If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command is generated.

[0033] If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than the first temperature threshold, then water pump abnormality information is generated and stored.

[0034] If the third water temperature sensor data is greater than the second temperature threshold, then water temperature anomaly information is generated and stored;

[0035] If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated.

[0036] If the value of the fourth water temperature sensor data is greater than that of the fifth water temperature sensor data and is greater than the fourth temperature threshold, then intercooler abnormality information is generated and stored.

[0037] The lubricating oil analysis module is used to acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information.

[0038] The terminal module is used to execute the diesel engine unloading protection control command, the diesel engine shutdown protection control command, and the power unloading protection control command.

[0039] Optionally, the signal acquisition module includes a first fuel pressure sensor and a second fuel pressure sensor;

[0040] The first fuel pressure sensor and the second fuel pressure sensor are respectively installed at the fuel inlet end and the fuel outlet end of the fuel filter.

[0041] A lubricating oil temperature sensor is installed inside a lubricating oil reservoir.

[0042] First filter lubricating oil pressure sensor, second filter lubricating oil pressure sensor;

[0043] The first filter lubricating oil pressure sensor and the second filter lubricating oil pressure sensor are respectively installed at the oil inlet end and the oil outlet end of the oil filter;

[0044] First turbocharger lubricating oil pressure sensor, second turbocharger lubricating oil pressure sensor;

[0045] The first turbocharger lubricating oil pressure sensor and the second turbocharger lubricating oil pressure sensor are respectively installed at the oil inlet end and the oil outlet end of the turbocharger oil filter;

[0046] First water temperature sensor, second water temperature sensor, third water temperature sensor, fourth water temperature sensor, fifth water temperature sensor;

[0047] The first water temperature sensor is located at the inlet of the high-temperature water pump, and the second water temperature sensor is located at the outlet of the high-temperature water pump.

[0048] The third water temperature sensor is installed inside the diesel engine coolant tank;

[0049] The fourth water temperature sensor is located at the inlet of the intermediate cooling water pump, and the fifth water temperature sensor is located at the outlet of the intermediate cooling water pump.

[0050] Optionally, the lubricating oil analysis module includes a lubricating oil pump, a temporary oil tank, and a multi-parameter oil monitoring sensor;

[0051] The lubricating oil pump is connected to the diesel engine oil pan and the temporary oil tank respectively. The lubricating oil pump is used to draw part of the engine oil in the diesel engine oil pan into the temporary oil tank.

[0052] The multi-parameter oil monitoring sensor is installed inside the temporary oil storage tank.

[0053] Optionally, a data display module may also be included;

[0054] The data display module is used to display abnormal information such as fuel pressure, filter lubricating oil, turbocharger lubricating oil, water pump, water temperature, and intercooler.

[0055] Compared with the prior art, the beneficial effects of the present invention are as follows: This embodiment proposes a method for detecting locomotive lubricating oil. In this method, data from a first fuel pressure sensor, a second fuel pressure sensor, oil parameter monitoring sensors, a first filter lubricating oil pressure sensor, a second filter lubricating oil pressure sensor, a first turbocharger lubricating oil pressure sensor, a second turbocharger lubricating oil pressure sensor, a first water temperature sensor, a second water temperature sensor, a third water temperature sensor, a fourth water temperature sensor, and a fifth water temperature sensor are simultaneously collected, analyzed, and processed. Based on the first and second fuel pressure sensor data, the fuel pressure can be determined; based on the oil parameter monitoring sensor data, the lubricating oil temperature, lubricating oil pressure, and lubrication parameters can be determined. Oil quality (viscosity, moisture, flash point, insoluble matter); based on the first, second, third, fourth, and fifth water temperature sensor data, the coolant temperature can be determined; based on the above data, when the locomotive diesel engine coolant temperature is higher or lower than the standard value, or the lubricating oil pressure is lower than the standard parameter value, after comparing with the preset original (baseline) data, if the data is abnormal, a corresponding alarm can be generated and stored, as well as a shutdown, speed reduction, and unloading signal for the diesel engine can be generated, realizing effective monitoring of the diesel engine auxiliary system and protection control of the diesel engine; when the locomotive diesel engine is in or has an unloading or shutdown fault, the real-time data of the diesel engine auxiliary system can be analyzed and stored, and maintenance personnel can make effective maintenance and repairs from the retrieved data. Attached Figure Description

[0056] Figure 1 This is a block diagram of the locomotive lubricating oil detection system in the embodiment;

[0057] Figure 2 This is a block diagram of the fuel system structure in the embodiment;

[0058] Figure 3 This is a block diagram of the lubricating oil system structure in the embodiment;

[0059] Figure 4This is a block diagram of the cooling water system structure in the embodiment;

[0060] Figure 5 This is a block diagram of the lubricating oil analysis module in the embodiment;

[0061] Figure 6 This is a block diagram of another locomotive lubricating oil detection system in the embodiment. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0063] Example 1

[0064] This embodiment proposes a method for detecting locomotive lubricating oil, including:

[0065] Acquire first fuel pressure sensor data and second fuel pressure sensor data. If the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold, generate and store fuel pressure abnormality information.

[0066] Acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information.

[0067] Acquire and store lubricating oil temperature sensing data;

[0068] Acquire lubricating oil pressure sensing data of the first filter and lubricating oil pressure sensing data of the second filter;

[0069] If the value of the lubricating oil pressure sensor data of the second filter is greater than the value of the lubricating oil pressure sensor data of the first filter and is greater than the first threshold, then abnormal information of the filter lubricating oil is generated and stored.

[0070] Acquire lubricating oil pressure sensor data for the first turbocharger and the second turbocharger;

[0071] If the pressure sensor data of the second booster compressor lubricating oil is greater than the value of the pressure sensor data of the first filter booster compressor lubricating oil, and the value is greater than the second threshold, then abnormal information of the booster compressor lubricating oil will be generated and stored.

[0072] If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command will be generated.

[0073] If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command will be generated.

[0074] Acquire first water temperature sensor data and second water temperature sensor data. If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than the first temperature threshold, then generate and store water pump abnormal information.

[0075] Acquire third water temperature sensor data; if the third water temperature sensor data is greater than the second temperature threshold, generate and store water temperature anomaly information.

[0076] If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated.

[0077] Acquire the fourth and fifth water temperature sensor data. If the value of the fourth water temperature sensor data is greater than that of the fifth water temperature sensor data and is greater than the fourth temperature threshold, then generate and store intercooler anomaly information.

[0078] In this embodiment, the first fuel pressure sensing data and the second fuel pressure sensing data are set to represent the fuel filter inlet pressure and the fuel filter outlet pressure, respectively.

[0079] By comparing the data from the first fuel pressure sensor with the data from the second fuel pressure sensor, it can be determined whether there is an abnormality in the fuel filter. The abnormality may include blockage of the fuel coarse filter or the fuel fine filter.

[0080] In this embodiment, oil parameter monitoring sensor data is set to represent the state parameters of the lubricating oil. The state parameters can include a variety of types, and the specific type of the state parameters can be set according to requirements.

[0081] Among them, the oil change index is set as the standard data value corresponding to the state parameter. The oil change index can be determined by experience or calibration test.

[0082] By comparing oil parameter monitoring sensor data and oil change indicators, it can be determined whether the condition of the lubricating oil is abnormal. When the lubricating oil is abnormal, it should be replaced. Abnormalities may include excessive water, excessive insoluble matter, etc.

[0083] In this embodiment, the lubricating oil temperature sensing data is used to represent the temperature of the lubricating oil, and real-time monitoring of the lubricating oil temperature can be achieved based on the lubricating oil temperature sensing data.

[0084] In this embodiment, the lubricating oil pressure sensing data of the first filter and the lubricating oil pressure sensing data of the second filter are used to represent the oil inlet pressure and oil outlet pressure of the oil filter, respectively.

[0085] By comparing the lubricating oil pressure sensor data of the first filter with that of the second filter, it can be determined whether there is an abnormality in the oil filter. The abnormality may include blockage of the oil filter.

[0086] In this embodiment, the first turbocharger lubricating oil pressure sensing data and the second turbocharger lubricating oil pressure sensing data are used to represent the oil inlet pressure of the turbocharger oil filter and the oil outlet pressure of the turbocharger oil filter, respectively.

[0087] By comparing the lubricating oil pressure sensor data of the first turbocharger with that of the second turbocharger, it can be determined whether there is an abnormality in the oil filter. The abnormality may include blockage of the oil filter.

[0088] In this embodiment, the diesel engine unloading protection control command is used to control the diesel engine speed to be below a specified speed threshold. The relevant third threshold and speed threshold can be determined through experience or calibration tests.

[0089] In this embodiment, the diesel engine shutdown protection control command is used to control the diesel engine to shut down, wherein the relevant fourth threshold is determined through experience or calibration test.

[0090] In this embodiment, the first water temperature sensing data and the second water temperature sensing data are used to represent the inlet temperature of the high-temperature water pump and the outlet temperature of the high-temperature water pump, respectively.

[0091] By comparing the data from the first water temperature sensor with the data from the second water temperature sensor, it can be determined whether the high-temperature water pump is faulty. The fault may include abnormal heat dissipation of the high-temperature water pump.

[0092] In this embodiment, the third water temperature sensor data is used to represent the water outlet temperature of the diesel engine. By comparing the third water temperature sensor data with the second temperature threshold, it can be determined whether there is a fault in the diesel engine water cooling circulation system.

[0093] In this embodiment, when the third water temperature sensor data (corresponding value) is greater than the third temperature threshold, a power unloading protection control command is generated. This command is used to control the speed of the diesel locomotive to be below a specified speed threshold. The relevant third temperature threshold and speed threshold can be determined through experience or calibration tests.

[0094] In this embodiment, the fourth water temperature sensing data and the fifth water temperature sensing data are used to represent the temperature at the inlet and outlet of the intercooled water pump, respectively.

[0095] By comparing the data from the fourth and fifth water temperature sensors, it can be determined whether the intercooler water pump is malfunctioning.

[0096] In this embodiment, if one or more of the following are generated: abnormal fuel pressure, abnormal oil quality, abnormal filter lubricating oil, abnormal lubricating oil temperature sensor data, abnormal turbocharger lubricating oil, abnormal water pump, abnormal water temperature, and abnormal intercooler, the corresponding abnormal information is stored simultaneously to facilitate the analysis of the causes of the abnormalities during maintenance.

[0097] This embodiment proposes a method for detecting lubricating oil in locomotives. In this method, the following data are simultaneously collected, analyzed, and processed: first fuel pressure sensor data, second fuel pressure sensor data, oil parameter monitoring sensor data, first filter lubricating oil pressure sensor data, second filter lubricating oil pressure sensor data, first turbocharger lubricating oil pressure sensor data, second turbocharger lubricating oil pressure sensor data, first water temperature sensor data, second water temperature sensor data, third water temperature sensor data, fourth water temperature sensor data, and fifth water temperature sensor data.

[0098] Fuel pressure can be determined based on the first fuel pressure sensor data and the second fuel pressure sensor data; lubricating oil temperature, lubricating oil pressure, and lubricating oil properties (viscosity, water content, flash point, and insoluble matter) can be determined based on the oil parameter monitoring sensor data; and coolant temperature can be determined based on the first, second, third, fourth, and fifth water temperature sensor data.

[0099] Based on the above data, when the locomotive diesel engine cooling water temperature is higher or lower than the standard value, or the lubricating oil pressure is lower than the standard parameter value, after comparing with the preset original (baseline) data, if the data is abnormal, a corresponding alarm can be generated and stored, as well as a shutdown, speed reduction, and unloading signal for the diesel engine can be generated, so as to realize effective monitoring of the diesel engine auxiliary system and protection control of the diesel engine.

[0100] When the locomotive diesel engine is in or has an unloading or shutdown fault, the real-time data of the diesel engine auxiliary system can be analyzed and stored, and maintenance personnel can make effective maintenance and repairs based on the retrieved data.

[0101] Based on the aforementioned solution, in one possible implementation, it further includes determining whether the lubricating oil pressure sensing data of the first filter is within a first numerical range;

[0102] If the lubricating oil pressure sensing data of the first filter is within the first value range, and the lubricating oil pressure sensing data of the second filter is greater than the value of the lubricating oil pressure sensing data of the first filter by a value greater than the first threshold, then filter lubricating oil abnormal information is generated and stored.

[0103] In this solution, whether the first filter lubricating oil pressure sensor is in the first value range is used as a prerequisite for determining whether there is an abnormality in the oil filter. This ensures that the obtained first filter lubricating oil pressure sensor data and second filter lubricating oil pressure sensor data correspond to the data when the (diesel engine) system is working stably, thereby ensuring the accuracy of the generated filter lubricating oil abnormality information.

[0104] Furthermore, when it is necessary to determine whether the lubricating oil pressure sensor data of the first filter is within the first value range, the first value range is set to 250-600 KP.

[0105] Based on any of the aforementioned schemes, in one possible implementation scheme, it further includes determining whether the lubricating oil pressure sensing data of the first booster compressor is within the second numerical range;

[0106] If the pressure sensor data of the first turbocharger lubricating oil is within the second value range, and the pressure sensor data of the second turbocharger lubricating oil is greater than the pressure sensor data of the first filter turbocharger lubricating oil, and the value is greater than the second threshold, then abnormal information of the turbocharger lubricating oil is generated and stored.

[0107] In this solution, whether the first turbocharger lubricating oil pressure sensor data is within the second value range is used as a prerequisite for determining whether the oil filter is abnormal. This ensures that the obtained first turbocharger lubricating oil pressure sensor data and second turbocharger lubricating oil pressure sensor data correspond to the data when the (diesel engine) system is operating stably, thereby ensuring the accuracy of the generated turbocharger lubricating oil abnormality information.

[0108] Furthermore, when it is necessary to determine whether the lubricating oil pressure sensor data of the first booster is within the second value range, the second value range is set to 250-400 KP.

[0109] Based on any of the aforementioned schemes, in one feasible implementation scheme, the oil parameter monitoring sensor data includes viscosity values, moisture values, flash point values, and insoluble matter values.

[0110] For example, in this solution, the oil change indicators are set as follows: viscosity (100°C centistokes): 18; moisture (%): >0.1; flash point (°C): >180; insoluble matter (V%): >11.6.

[0111] For example, in this solution, the comparison results of oil parameter monitoring sensor data and oil change indicators can be used in the following manner:

[0112] When the viscosity is >18 centistokes, based on the oil viscosity, the equipment inspector can determine that the viscosity has increased due to oxidation and accumulation of insoluble suspended matter, or that the abnormal result is caused by poor diesel atomization under oil-rich combustion conditions. Based on the judgment, the maintenance personnel will replace the diesel engine oil and find the fault point.

[0113] When the moisture content (%) is >0.1, based on the moisture value in the lubricating oil in the oil tank, the equipment inspector can determine that the excessive moisture is caused by a leak. The maintenance personnel can then find the fault point while changing the diesel engine oil based on the data indicators.

[0114] When the flash point (°C) is <180, the flash point can be used as a reference value along with the viscosity to infer the oil dilution and comprehensively evaluate whether to change the lubricating oil.

[0115] When the insoluble matter (V%) is >11.6, this index is a useful data for predicting changes in engine oil oxidation and estimating the effect of additives. Equipment inspectors can use this value to determine whether the insoluble matter content has decreased significantly due to excessive oil replenishment (to maintain the effectiveness of additive dispersion). Maintenance personnel can then use this information to find the problem that caused the excessive oil replenishment.

[0116] In this solution, based on oil parameter monitoring sensor data, the viscosity, moisture, flash point, and insoluble matter of the lubricating oil can be monitored in real time. Maintenance personnel can make accurate oil changes based on the measured data, avoiding damage to the lubrication system and diesel engine due to oil quality, which reduces maintenance costs and improves the efficiency of troubleshooting.

[0117] Based on any of the aforementioned schemes, in one feasible implementation, the first threshold can be 100KP;

[0118] If the pressure corresponding to the lubricating oil pressure sensor data of the first filter is between 250-600KP, and the pressure corresponding to the lubricating oil pressure sensor data of the second filter is 100KP greater than the value between 250-600KP, it is determined that the oil filter is clogged. At this time, an abnormal information for the lubricating oil of the filter is generated.

[0119] At the same time, it stores abnormal information about filter lubricating oil. Drivers can submit a repair request based on this information, and maintenance personnel can export the abnormal information for analysis and develop a repair plan.

[0120] Based on any of the aforementioned schemes, in one feasible implementation, the second threshold can be 100KP;

[0121] When the pressure corresponding to the first turbocharger lubricating oil pressure sensor data is between 250KP and 400KP, and the pressure corresponding to the second turbocharger lubricating oil pressure sensor data is 100KP higher than the value between 250KP and 400KP, it is determined that the (turbocharger) oil filter is clogged. At this time, a turbocharger lubricating oil abnormality information is generated.

[0122] At the same time, it stores abnormal information about the turbocharger's lubricating oil. The driver can submit a repair request based on this abnormal information. The above data will be automatically memorized and stored. Maintenance personnel can export the abnormal information for analysis and then make a repair plan.

[0123] Based on any of the aforementioned schemes, in one possible implementation scheme, the third threshold is set to 160KP and the fourth threshold is set to 80KP.

[0124] The diesel engine can only operate at speeds above 750 r / min when the pressure corresponding to the lubricating oil pressure sensor data of the second turbocharger is greater than 160 kP.

[0125] If the pressure corresponding to the lubricating oil pressure sensor data of the second turbocharger is less than 160KP, a diesel engine unloading protection control command will be generated. At this time, the diesel engine speed can only be controlled below 750r / min.

[0126] The diesel engine can only ignite and run normally when the pressure corresponding to the lubricating oil pressure sensor data of the second turbocharger is greater than 80 kPa.

[0127] For example, when the pressure corresponding to the lubricating oil pressure sensor data of the second turbocharger is less than 80KP, a diesel engine shutdown protection control command is generated to control the diesel engine shutdown protection.

[0128] The above data will be automatically stored and analyzed by maintenance personnel to develop appropriate maintenance plans.

[0129] Based on any of the aforementioned solutions, in one feasible implementation, it also includes obtaining the basic performance indicators of various components in the cooling water system;

[0130] Basic parameters include: high-temperature water pump side system temperature at 65℃, and intermediate cooling water system temperature at 55℃. Abnormal water temperatures: 85℃ and 90℃.

[0131] Based on any of the aforementioned schemes, in one possible implementation scheme, the first temperature threshold is set to 15℃-20℃;

[0132] When the water temperature corresponding to the first water temperature sensor data is 65℃, and the water temperature corresponding to the second water temperature sensor data is 15℃-20℃ higher than 65℃, the high temperature water pump is determined to be faulty, and abnormal water pump information is generated and stored.

[0133] At the same time, it stores abnormal information about the water pump. The above data will be automatically memorized and stored, and maintenance personnel can export the abnormal information for analysis and make maintenance plans.

[0134] Based on any of the aforementioned schemes, in one possible implementation scheme, the second temperature threshold is set to 85°C and the third temperature threshold is set to 90°C.

[0135] When the water temperature corresponding to the third water temperature sensor data reaches 85℃, it is determined that the water temperature is high. At this time, water temperature abnormality information is generated and stored.

[0136] Drivers can submit a ticket for repair based on the abnormal information, and maintenance personnel can export the abnormal data for analysis and then make a repair plan.

[0137] When the water temperature corresponding to the third water temperature sensor data reaches 90℃, a power unloading protection control command is generated to control the locomotive power unloading protection.

[0138] The above data will be automatically stored and analyzed by maintenance personnel to develop appropriate maintenance plans.

[0139] Based on any of the aforementioned schemes, in one possible implementation scheme, the fourth temperature threshold is set to 15℃-20℃;

[0140] When the water temperature corresponding to the fourth water temperature sensor data is 55℃, and the water temperature corresponding to the fifth water temperature sensor data is 15℃-20℃ higher than 55℃, the intercooler water pump is determined to be faulty, and intercooler abnormality information is generated.

[0141] At the same time, it stores information about intercooler malfunctions. The above data will be automatically memorized and stored, and maintenance personnel can export the abnormal data for analysis and make maintenance plans.

[0142] Example 2

[0143] Figure 1 This is a structural block diagram of the locomotive lubricating oil detection system in the embodiment, for reference. Figure 1 In this embodiment, the locomotive lubricating oil detection system includes a signal acquisition module 100, a lubricating oil analysis module 200, a data analysis module 300, and a terminal module 400.

[0144] The signal acquisition module 100 is used to acquire the following data: first fuel pressure sensor data, second fuel pressure sensor data, lubricating oil temperature sensor data, first filter lubricating oil pressure sensor data, second filter lubricating oil pressure sensor data, first turbocharger lubricating oil pressure sensor data, second turbocharger lubricating oil pressure sensor data, first water temperature sensor data, second water temperature sensor data, third water temperature sensor data, fourth water temperature sensor data, and fifth water temperature sensor data.

[0145] The data analysis module 300 is used to generate and store fuel pressure abnormality information when the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold.

[0146] Store lubricating oil temperature sensor data;

[0147] If the value of the lubricating oil pressure sensor data of the second filter is greater than the value of the lubricating oil pressure sensor data of the first filter and is greater than the first threshold, then abnormal information of the filter lubricating oil is generated and stored.

[0148] If the pressure sensor data of the second booster compressor lubricating oil is greater than the value of the pressure sensor data of the first filter booster compressor lubricating oil, and the value is greater than the second threshold, then abnormal information of the booster compressor lubricating oil will be generated and stored.

[0149] If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command will be generated.

[0150] If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command will be generated.

[0151] If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than the first temperature threshold, then water pump abnormality information is generated and stored.

[0152] If the third water temperature sensor data is greater than the second temperature threshold, then water temperature anomaly information is generated and stored.

[0153] If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated.

[0154] If the value of the fourth water temperature sensor data is greater than that of the fifth water temperature sensor data, and is greater than the fourth temperature threshold, then intercooler anomaly information is generated and stored.

[0155] The lubricating oil analysis module 200 is used to acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information.

[0156] The terminal module 400 is used to execute diesel engine unloading protection control commands, diesel engine shutdown protection control commands, and power unloading protection control commands.

[0157] In this scheme, the signal acquisition module 100 and the lubricating oil analysis module 200 are respectively connected to the data analysis module 300, and the data analysis module 300 is connected to the terminal module 400.

[0158] For example, in this solution, the signal acquisition module 100 may include a variety of sensors, and different sensors may be configured to acquire a specific type of sensing data.

[0159] For example, in this solution, the lubricating oil analysis module 200 may include one or more sensors, and different sensors may be configured to acquire a specified state parameter of the lubricating oil.

[0160] The lubricating oil analysis module 200 may also include a processing unit, which is used to interpret the status parameters, such as converting the data format of the status parameters and assigning preset textual interpretations to the status parameters. The processing unit is also used to send the status parameters and their interpretations to the data analysis module 300.

[0161] The processing unit can be designed based on electronic devices such as microcontroller units (MCUs).

[0162] For example, in this solution, the data analysis module 300 can be designed based on a system-on-a-chip (SoC) and memory.

[0163] For example, in this solution, the terminal module 400 can be a vehicle control unit (VCU), a domain control unit (DCU), an engine control unit (ECU), etc.

[0164] For example, in this solution, the acquisition method of each sensor data and the generation method of the corresponding abnormal information are the same as those described in Embodiment 1, and the specific details will not be described in detail.

[0165] Figure 2 This is a block diagram of the fuel system structure in the embodiment, for reference. Figure 2 ,exist Figure 1 Based on the scheme shown, in one possible implementation, the signal acquisition module includes a first fuel pressure sensor 1001 and a second fuel pressure sensor 1002.

[0166] The first fuel pressure sensor 1001 and the second fuel pressure sensor 1002 are respectively located at the inlet end and the outlet end of the fuel filter 4.

[0167] In addition, the fuel tank 1 is connected to the fuel pump 3 through the coarse filter 2, and the fuel pump 3 is connected to the diesel engine 5 through the fine filter 4.

[0168] Figure 3 This is a block diagram of the lubricating oil system structure in the embodiment. Figure 4 This is a block diagram of the cooling water system structure in the embodiment, for reference. Figure 3 and Figure 4 The signal acquisition module also includes:

[0169] First filter lubricating oil pressure sensor 1006, second filter lubricating oil pressure sensor 1005;

[0170] The first filter lubricating oil pressure sensor 1006 and the second filter lubricating oil pressure sensor 1005 are respectively installed at the oil inlet end and the oil outlet end of the oil filter 9.

[0171] First booster compressor lubricating oil pressure sensor 1004, second booster compressor lubricating oil pressure sensor 1003;

[0172] The first turbocharger lubricating oil pressure sensor 1004 and the second turbocharger lubricating oil pressure sensor 1003 are respectively installed at the oil inlet end and the oil outlet end of the turbocharger oil filter 7.

[0173] The turbocharger 6 is connected to the heat exchanger 8 via the turbocharger oil filter 7, and the heat exchanger 8 is connected to the diesel engine oil pan 10 via the oil filter 9. The diesel engine oil pan 10 is also connected to the turbocharger 6.

[0174] First water temperature sensor 1011, second water temperature sensor 1010, third water temperature sensor 1012, fourth water temperature sensor 1008, fifth water temperature sensor 1009;

[0175] The first water temperature sensor 1011 is located at the inlet of the high-temperature water pump 13, and the second water temperature sensor 1010 is located at the outlet of the high-temperature water pump 13.

[0176] The third water temperature sensor 1012 is installed inside the diesel engine coolant tank (expansion tank 11);

[0177] The fourth water temperature sensor 1008 is located at the inlet of the intercooled water pump 12, and the fifth water temperature sensor 1009 is located at the outlet of the intercooled water pump 12.

[0178] The expansion tank 11 is connected to the high-temperature water pump 13 and the intercooled water pump 12 respectively. The high-temperature water pump 13 and the intercooled water pump 12 are also connected to the diesel engine 5 respectively. The diesel engine 5 is also connected to the expansion tank 11.

[0179] In this solution, corresponding sensors are installed in the lubricating oil system oil filter and the turbocharger oil filter. By comparing and analyzing the detected lubricating oil pressure, the blockage of the filter can be accurately determined, thus improving work efficiency.

[0180] By installing corresponding water temperature sensors in the high-temperature water system and the intermediate cooling water system, the quality of the high-temperature water pump and the intermediate cooling water pump can be accurately determined by comparing and analyzing the detected temperatures of the high-temperature water system and the intermediate cooling water system, thus improving operational efficiency.

[0181] Figure 5 This is a block diagram of the lubricating oil analysis module in the embodiment, for reference. Figure 5 ,exist Figure 1 Based on the scheme shown, in one possible implementation, the lubricating oil analysis module includes a lubricating oil pump 14, a temporary oil tank 15, and a multi-parameter oil monitoring sensor 1013;

[0182] The lubricating oil pump 14 is connected to the diesel engine oil pan 10 and the temporary oil tank 15 respectively. The lubricating oil pump 14 is used to draw part of the engine oil in the diesel engine oil pan 10 into the temporary oil tank 15.

[0183] The oil multi-parameter monitoring sensor 1013 is installed inside (or outside) the temporary oil tank 15, and the oil multi-parameter monitoring sensor 1013 is connected to the data analysis module 300 through the processing unit 16.

[0184] For example, in this solution, when it is necessary to view oil information (such as viscosity, moisture, flash point, insoluble matter, etc.), it is only necessary to pump the lubricating oil in the diesel engine oil pan 10 to the temporary oil tank 15 through the lubricating oil pump 14.

[0185] The multi-parameter oil monitoring sensor 1013 installed in the temporary oil tank 15 will sample the lubricating oil in the temporary oil tank 15;

[0186] The sampled data is sent to the processing unit 16 for interpretation and then to the data analysis module 300. The analyzed and compared data can be displayed in real time on a designated device so that the replacement of diesel engine lubricating oil can be arranged based on abnormal data.

[0187] Furthermore, in one possible embodiment, a lubricating oil temperature sensor is disposed inside (or outside) the lubricating oil reservoir or temporary storage tank 15.

[0188] Figure 6 This is a structural block diagram of another locomotive lubricating oil detection system in the embodiment, for reference. Figure 6 ,exist Figure 1 Based on the scheme shown, in one possible implementation, a data display module 500 is also included, which is connected to the data analysis module 300;

[0189] The data display module 500 is used to display abnormal information such as fuel pressure, filter lubricating oil, turbocharger lubricating oil, water pump, water temperature, and intercooler.

[0190] In this solution, the GK1C locomotive diesel engine auxiliary system monitoring and analysis system comprises a signal acquisition module, a lubricating oil analysis module, a data analysis module, a data display module, and a terminal (execution) module. Signal acquisition modules (measuring cooling water temperature, fuel pressure, lubricating oil temperature, lubricating oil pressure, and lubricating oil properties (viscosity, moisture, flash point, insoluble matter)) are installed at various functional locations in the cooling water, fuel, and lubricating oil systems. After analysis by the data analysis module, the data display module shows real-time data on these parameters. Maintenance personnel and drivers can use this real-time data for locomotive maintenance. Simultaneously, the terminal module can issue commands to automatically perform protective operations on the locomotive based on abnormal monitored data.

[0191] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for testing locomotive lubricating oil, characterized in that, include: Acquire first fuel pressure sensor data and second fuel pressure sensor data. If the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold, generate and store fuel pressure abnormality information. Acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information. Acquire lubricating oil temperature sensing data and store the lubricating oil temperature sensing data; Acquire lubricating oil pressure sensing data of the first filter and lubricating oil pressure sensing data of the second filter; If the value of the second filter lubricating oil pressure sensor data is greater than the value of the first filter lubricating oil pressure sensor data and is greater than the first threshold, then filter lubricating oil abnormal information is generated and stored. Acquire lubricating oil pressure sensor data for the first turbocharger and the second turbocharger; If the value of the second turbocharger lubricating oil pressure sensor data is greater than the value of the first turbocharger lubricating oil pressure sensor data by a greater than the second threshold, then turbocharger lubricating oil abnormal information is generated and stored. If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command is generated. If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command is generated. Acquire first water temperature sensor data and second water temperature sensor data. If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than a first temperature threshold, then generate and store water pump abnormal information. Acquire third water temperature sensor data; if the third water temperature sensor data is greater than the second temperature threshold, generate and store water temperature anomaly information. If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated. Acquire the fourth water temperature sensor data and the fifth water temperature sensor data. If the value of the fourth water temperature sensor data is greater than the value of the fifth water temperature sensor data and is greater than the fourth temperature threshold, then generate and store the intercooler abnormality information.

2. The locomotive lubricating oil testing method as described in claim 1, characterized in that, It also includes determining whether the lubricating oil pressure sensor data of the first filter is within a first numerical range; If the first filter lubricating oil pressure sensing data is within the first value range, and the second filter lubricating oil pressure sensing data is greater than the first filter lubricating oil pressure sensing data by a value greater than a first threshold, then filter lubricating oil abnormal information is generated and stored.

3. The locomotive lubricating oil testing method as described in claim 2, characterized in that, The first numerical range is 250~600KP.

4. The locomotive lubricating oil testing method as described in claim 1, characterized in that, It also includes determining whether the first booster compressor lubricating oil pressure sensor data is within the second numerical range; If the first turbocharger lubricating oil pressure sensing data is within the second value range, and the second turbocharger lubricating oil pressure sensing data is greater than the first turbocharger lubricating oil pressure sensing data by a value greater than the second threshold, then turbocharger lubricating oil abnormal information is generated and stored.

5. The locomotive lubricating oil testing method as described in claim 4, characterized in that, The second numerical range is 250~400KP.

6. The locomotive lubricating oil testing method as described in claim 1, characterized in that, The oil parameter monitoring sensor data includes viscosity, moisture content, flash point, and insoluble matter.

7. A locomotive lubricating oil detection system, characterized in that, It includes a signal acquisition module, a lubricating oil analysis module, a data analysis module, and a terminal module; The signal acquisition module is used to acquire the following data: first fuel pressure sensor data, second fuel pressure sensor data, lubricating oil temperature sensor data, first filter lubricating oil pressure sensor data, second filter lubricating oil pressure sensor data, first turbocharger lubricating oil pressure sensor data, second turbocharger lubricating oil pressure sensor data, first water temperature sensor data, second water temperature sensor data, third water temperature sensor data, fourth water temperature sensor data, and fifth water temperature sensor data. The data analysis module is used to generate and store abnormal fuel pressure information when the first fuel pressure sensor data and / or the second fuel pressure sensor data are less than the fuel pressure threshold. Store the lubricating oil temperature sensing data; If the value of the second filter lubricating oil pressure sensor data is greater than the value of the first filter lubricating oil pressure sensor data and is greater than the first threshold, then filter lubricating oil abnormal information is generated and stored. If the value of the second turbocharger lubricating oil pressure sensor data is greater than the value of the first turbocharger lubricating oil pressure sensor data by a greater than the second threshold, then turbocharger lubricating oil abnormal information is generated and stored. If the lubricating oil pressure sensor data of the second turbocharger is less than the third threshold, a diesel engine unloading protection control command is generated. If the lubricating oil pressure sensor data of the second turbocharger is less than the fourth threshold, a diesel engine shutdown protection control command is generated. If the value of the second water temperature sensor data is greater than that of the first water temperature sensor data and is greater than the first temperature threshold, then water pump abnormality information is generated and stored. If the third water temperature sensor data is greater than the second temperature threshold, then water temperature anomaly information is generated and stored; If the third water temperature sensor data is greater than the third temperature threshold, a power unloading protection control command is generated. If the value of the fourth water temperature sensor data is greater than that of the fifth water temperature sensor data and is greater than the fourth temperature threshold, then intercooler abnormality information is generated and stored. The lubricating oil analysis module is used to acquire oil parameter monitoring sensor data, determine whether the oil parameter monitoring sensor data is the same as the oil change index, and if they are different, generate and store oil abnormality information. The terminal module is used to execute the diesel engine unloading protection control command, the diesel engine shutdown protection control command, and the power unloading protection control command.

8. The locomotive lubricating oil detection system as described in claim 7, characterized in that, The signal acquisition module includes a first fuel pressure sensor and a second fuel pressure sensor; The first fuel pressure sensor and the second fuel pressure sensor are respectively installed at the fuel inlet end and the fuel outlet end of the fuel filter. A lubricating oil temperature sensor is installed inside a lubricating oil reservoir. First filter lubricating oil pressure sensor, second filter lubricating oil pressure sensor; The first filter lubricating oil pressure sensor and the second filter lubricating oil pressure sensor are respectively installed at the oil inlet end and the oil outlet end of the oil filter; First turbocharger lubricating oil pressure sensor, second turbocharger lubricating oil pressure sensor; The first turbocharger lubricating oil pressure sensor and the second turbocharger lubricating oil pressure sensor are respectively installed at the oil inlet end and the oil outlet end of the turbocharger oil filter; First water temperature sensor, second water temperature sensor, third water temperature sensor, fourth water temperature sensor, fifth water temperature sensor; The first water temperature sensor is located at the inlet of the high-temperature water pump, and the second water temperature sensor is located at the outlet of the high-temperature water pump. The third water temperature sensor is installed inside the diesel engine coolant tank; The fourth water temperature sensor is located at the inlet of the intermediate cooling water pump, and the fifth water temperature sensor is located at the outlet of the intermediate cooling water pump.

9. The locomotive lubricating oil detection system as described in claim 7, characterized in that, The lubricating oil analysis module includes a lubricating oil pump, a temporary oil tank, and a multi-parameter oil monitoring sensor. The lubricating oil pump is connected to the diesel engine oil pan and the temporary oil tank respectively. The lubricating oil pump is used to draw part of the engine oil in the diesel engine oil pan into the temporary oil tank. The multi-parameter oil monitoring sensor is installed inside the temporary oil storage tank.

10. The locomotive lubricating oil detection system as described in claim 7, characterized in that, It also includes a data display module; The data display module is used to display abnormal information such as fuel pressure, filter lubricating oil, turbocharger lubricating oil, water pump, water temperature, and intercooler.

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