3845 results about "Motor oil" patented technology

An oil distributor for an axle drive of a motor vehicle, having a first trough element with a first wall, a second trough element which is placed onto the first trough element and has a second wall, wherein the first trough element and / or the second trough element has an oil capture opening; wherein in an assembled state, the first trough element is fluidically connected to the second trough element, and the first trough element and the second trough element form a U-shaped outer contour at least in portions such that the first trough element and the second trough element may surround portions of a gear wheel of a gear mechanism; and an oil outlet opening formed in the first trough element and / or the second trough element, via which an oil may emerge from the oil distributor.

A method of operating a gas turbine engine includes an engine core with a turbine, compressor, fuel combustor, and core shaft; a fan upstream of the engine core; a gearbox that receives an input from the core shaft and outputs drive to the fan; an oil loop system supplying oil to the gearbox; and a heat exchange system including: air-oil and fuel-oil heat exchangers, and wherein the oil loop system branches such that part of the oil flows along each branch and the air-oil and fuel-oil heat exchangers are parallel on different branches; and a modulation valve allows the oil sent via each branch to be varied, the method including controlling the heat exchange system wherein, under cruise conditions, a heat transfer ratio of:rate⁢ of⁢ heat⁢ transfer⁢ from⁢ oil⁢ to⁢ airrate⁢ of⁢ heat⁢ transfer⁢ from⁢ oil⁢ to⁢ fuelis in the range from 0 to 0.67.

The invention provides an engine oil burning diagnosis and maintenance system, and relates to engine oil burning diagnosis. The method comprises a multi-source data acquisition model, a heterogeneous data deep fusion module, a multi-level diagnosis module and a prediction maintenance module. The multi-source data acquisition model is used for acquiring multi-source data in the operation process of an engine in real time through an integrated sensor array, and the multi-source data comprises vibration data, acoustic data, exhaust component data and temperature distribution data; the heterogeneous data deep fusion module is used for performing data conversion on the multi-source data to obtain unified multi-source feature representation; the multi-level diagnosis module is used for performing multi-level diagnosis on the multi-source feature representation to obtain a multi-level diagnosis result; and the prediction maintenance module is used for carrying out maintenance analysis according to the multi-layer diagnosis result to obtain a maintenance decision suggestion containing a predicted life value, a fault evolution path and optimal maintenance time. By means of the scheme, the comprehensiveness and accuracy of engine oil burning diagnosis and maintenance are improved.

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The invention discloses a double-variable power source hydraulic system of a movable arm of an electric loader and a control method, and belongs to the technical field of energy conservation of electric engineering machinery. The hydraulic system is structurally characterized in that a permanent magnet synchronous servo motor and an electro-hydraulic proportional variable device form a double-variable power source direct drive arm hydraulic cylinder; the one-way valve achieves oil cylinder and motor oil supplementing and flow reappearing functions according to the working condition of a hydraulic cylinder, the direct-acting overflow valve achieves overflow protection of a hydraulic system, and the two-position two-way electromagnetic directional valve achieves the pressure maintaining function of the hydraulic cylinder. According to the control method of the hydraulic system configuration, an upper computer outputs a target instruction to a double-variable parameter optimization controller, then the double-variable parameter optimization controller outputs an optimization rotating speed or displacement signal to a motor pump set, and a pump outlet pressure sensor feeds back a pressure signal to achieve a pressure closed loop. The energy recovery function can be effectively achieved in the aspect of configuration, the energy efficiency characteristic of a power source can be greatly improved in the aspect of a control method, and the endurance time of the electric loader is effectively prolonged.

The invention relates to the technical field of box type diesel generating sets, in particular to a box type diesel generating set with a damping structure. Comprising a bottom frame, the bottom frame is fixedly connected with a plurality of fixing pins, the fixing pins are jointly connected with a bearing table in a sliding mode, the bearing table is provided with an engine and a generator, the engine is provided with an output shaft, the generator is provided with an input shaft, the output shaft is fixedly connected with a first fixing ring, and the first fixing ring is fixedly connected with a fixing column. The input shaft is fixedly connected with a second fixing ring. The mode that an existing coupler structure is replaced by active connection is adopted, so that when the diesel engine transmits power to the generator through a coupler, the generator cannot rotate along with an output shaft of the diesel engine under the action of viscous engine oil in the generator, and the diesel engine cannot drive the generator to rotate temporarily; therefore, the damage risk of mechanical parts in the diesel engine is reduced.

The invention discloses an oil-electricity hybrid linkage power supply system and a control method for a network electric drill, and belongs to the technical field of oil field network electricity land drilling machine system optimization control. Aiming at the power supply and consumption characteristics of the grid electricity drilling machine, on the basis of the energy flow characteristics of the grid electricity drilling machine system, the power grid side, the diesel generating sets and the grid electricity drilling machine oil-electricity hybrid linkage power supply system are linked, a multi-source coordination control algorithm is adopted, the starting number of the diesel generating sets is selected according to the power consumption capacity gap, and flexible power adjustment is conducted; with the purpose of minimizing the power utilization cost during operation of the grid electricity drilling machine, stable power output of the diesel generating set is balanced, the optimal economic operation mode is achieved, and mutual impact of currents of a power grid side and the diesel generating set is prevented; the problems that an existing single power supply cannot meet the electricity demand of the grid electricity drilling machine, cost is high, and cooperative power supply production efficiency is low are solved.

The invention relates to the technical field of oil cooling motors, in particular to an oil cooling motor oil way device capable of improving the cooling effect, which comprises a motor shell, a cylindrical oil conveying cavity layer is arranged in the motor shell, an oil feeding pipe and an oil discharging pipe are fixed on one side of the outer part of the motor shell, and the oil feeding pipe and the oil discharging pipe are both communicated with the oil conveying cavity layer; a blocking transverse column and a row of C-shaped partition columns are arranged in the oil conveying cavity layer, the blocking transverse column is arranged between the oil feeding pipe and the oil discharging pipe, the row of C-shaped partition columns are perpendicular to the blocking transverse column, the interior of the oil conveying cavity layer is divided into a plurality of C-shaped plate cavity unit oil ways through the row of C-shaped partition columns, and a plurality of stirring devices used for stirring oil are annularly arranged in each unit oil way. A conveyed cooling oil path is divided into a plurality of C-shaped unit oil paths through the row of C-shaped partition columns, each oil path is horizontally pushed and moved perpendicular to the oil path through the corresponding arc-shaped half panel, replacement of an oil layer close to the middle of the motor shell and replacement of the oil layer away from the middle of the motor shell can be caused by pushing and stirring of the arc-shaped half panels, and therefore the purpose that conveyed cold oil is evenly heated is achieved.

The invention discloses a shackle hydraulic system for an underground drill rig and a control method. The shackle hydraulic system is provided with an oil tank and a main oil pump; the rotary motor oil way and the feeding oil cylinder oil way are communicated with the main oil pump; proportional directional valves for controlling the transmission direction of hydraulic oil are arranged on an oil inlet path and an oil return path of the rotary motor oil path; the oil inlet path and the oil return path are respectively connected between the proportional directional valves and the rotary motor; a high-pressure selection valve is arranged in the oil path; the hydraulic control reversing valves are arranged on an oil inlet way and an oil return way of the oil way of the feeding oil cylinder, and the two-position two-way valves are arranged on the oil inlet way and the oil return way respectively. And the high-pressure selection valve is respectively and hydraulically communicated with the hydraulic control reversing valve and the two-position two-way valve to control the opening and closing of the hydraulic control reversing valve and the two-position two-way valve. The problem that the drill rod is easily damaged due to the fact that the feeding speed and the rotating speed are not matched during screwing on and screwing off of the drill rod is solved through accurate control of the hydraulic system, meanwhile, the automation level of the drilling machine is improved, and the labor intensity of workers is relieved.

A method of operating an aircraft gas turbine engine including: a core including a turbine, a compressor, a combustor, and a core shaft connecting the turbine to the compressor; a fan upstream of the core; a fan shaft; at least one bearing supporting the fan shaft; at least one auxiliary system using some of the fuel; an oil loop system to supply oil to the bearing; and a heat exchange system including: a primary fuel-oil heat exchanger through which oil in the oil loop system and substantially all the fuel flow to transfer heat between the oil and the fuel; and a secondary fuel-oil heat exchanger through which oil in the oil loop system and a portion of the fuel flow, to transfer heat between the oil and the fuel; and a fuel pump; wherein, under cruise conditions, fuel temperature on leaving the second heat exchanger is 120° C. to 200° C.

The present invention discloses an improved structure of an oil channel of an oil filter base assembly in a vehicle, including an oil filter base, where a lower portion of the oil filter base is provided with an oil inlet, an oil outlet, and an oil return port, an end portion of the oil filter base is provided with an antifreeze solution water inlet, a bottom portion is provided with a first water outlet and a second water outlet that are communicated with the antifreeze solution water inlet, a filter cartridge and a bypass valve are mounted in one end of the oil filter base, a filter cover is connected to an end portion of one end, close to the bypass valve, of the oil filter base, an oil cooler is mounted on an upper portion of one end, away from the filter cartridge, of the oil filter base.

The invention discloses an engine oil carbon deposition sampling detection method and system based on multispectral imaging, and the method comprises the steps: carrying out the collection of a to-be-processed multispectral image of an engine oil sample under a multispectral light source, and carrying out the preprocessing of the image to obtain a to-be-processed image; performing dark current correction on the to-be-processed image according to a band ratio method, and enhancing the signal intensity of the to-be-processed image; calculating the spectral reflectivity of the to-be-processed image according to the signal intensity of the to-be-processed image; extracting a three-dimensional feature tensor in the to-be-processed image according to the spectral reflectivity; segmenting the to-be-processed image according to the three-dimensional feature tensor, and screening a carbon deposition region; calculating a carbon deposition probability value of each pixel point in the carbon deposition area according to the spectral reflectivity; and setting a carbon deposition threshold value according to the carbon deposition probability value for judgment so as to judge whether carbon deposition exists in the engine oil sample or not. The similarity between the sample engine oil spectral reflectivity and the reference engine oil is reflected, and a possible carbon deposition area is found, so that the carbon deposition defect is accurately judged and identified.

The utility model provides an intelligent diesel generating set which comprises a mounting plate, one end of a radiating pipe is fixedly communicated with a water collecting pipe, the bottom of the water collecting pipe is fixedly communicated with a water return pipe, the water return pipe is fixedly communicated with a cooling liquid tank, and a communicating pipe is provided with a one-way valve. A temperature control assembly is arranged, a water pump pumps out cooling liquid in a cooling liquid box, the cooling liquid enters a heat dissipation pipe through a water distribution pipe and exchanges heat with air, the cooling liquid is subjected to heat dissipation and cooling, the cooled cooling liquid flows back into the cooling liquid box through a water return pipe, and low-temperature cooling liquid in the cooling liquid box flows back into the cooling liquid box again through a communicating pipe; and the diesel generator is continuously cooled. When the temperature is low, the water pumps are closed, cooling liquid in the cooling liquid box is not cooled, viscosity of engine oil is reduced, different water pumps are started to cool different diesel generators, independent control over the generator set is facilitated, and it is guaranteed that the temperature of each diesel generator is kept stable.

The invention relates to the technical field of engine oil filters, in particular to a multistage filtering engine oil filter which comprises a shell, a filter paper frame is coaxially arranged in the shell, the surface of the filter paper frame is coaxially sleeved with a rough filtering inner sleeve, and the surface of the rough filtering inner sleeve is movably sleeved with a rough filtering outer sleeve capable of moving up and down. First filter holes for rough filtration are uniformly distributed in the surfaces of the rough filtration inner sleeve and the rough filtration outer sleeve, the rough filtration outer sleeve moves up and down to enable the first filter holes in the rough filtration outer sleeve and the first filter holes in the rough filtration inner sleeve to be in a staggered closed state, a lower opening is formed in the lower end of the shell, and a collecting cover is coaxially mounted at the lower end of the shell; the invention aims to solve the problem that after the bypass valve of the engine oil filter is opened, impurities attached to filter paper are easily separated from the filter paper and flow to the positions of all oil-consuming parts of an engine through the bypass valve along with engine oil.

The invention discloses a method for preparing a waterproof coiled material by using composite coal liquefaction residue asphalt. The method comprises the following steps: mixing matrix petroleum asphalt in a molten state with molten DCLR in a certain proportion to obtain DCLR modified asphalt; adding a certain amount of SBS into the DCLR modified asphalt, shearing for a period of time at a certain temperature, sequentially adding a certain amount of engine oil and rubber powder, continuously shearing for a period of time at a certain temperature, and finally developing for a period of time at a certain temperature to obtain the composite DCLR modified asphalt. Coating the composite DCLR modified asphalt on the upper and lower surfaces of a base to obtain a base body of the waterproof coiled material; the upper surface and the lower surface of the waterproof coiled material base body are coated with isolating membranes or covered with gravel and then cooled and formed. The problems that the added values of the coal liquefaction residues, the waste rubber powder and the waste engine oil are low, the compatibility of the coal liquefaction residues and the petroleum asphalt is poor, and the low-temperature performance and the anti-aging performance of the mixed asphalt are poor are solved.

The invention relates to the technical field of tractor heat dissipation, in particular to a modular integrated tractor heat management method which comprises the steps that an engine radiator, a condenser, an engine oil radiator and a hydraulic radiator are arranged on the air outlet side of a cooling fan with the fan blade angle adjustable in a centralized mode; when the tractor operates in a working condition state, actual temperature data of an engine heat dissipation module, a transmission system heat dissipation module, a hydraulic system heat dissipation module and an air conditioning system heat dissipation module are collected; preset temperature difference data and preset fan rotating speed data corresponding to the working condition state are obtained; calculating an actual temperature difference value corresponding to the preset temperature difference value; and judging the actual temperature difference value of each item and the corresponding preset temperature difference value in real time, and controlling the wind direction and the rotating speed of the cooling fan in real time according to the judgment result. The invention further provides an electro-hydraulic control heat dissipation system applying the thermal management method. Heat dissipation and reverse blowing cleaning self-cleaning are carried out on all radiators of the tractor, the power loss is reduced, and the energy loss is reduced.

A system is presented for analyzing lubricant composition of a vehicle engine. The system includes the vehicle engine; sensors; a controller in communication with the sensors; and a lubrication sampling apparatus coupled to the controller and the engine's lubrication system. The sampling apparatus is configured to: transfer a first sample of the lubricant into a first sample container and a second sample of the lubricant a second sample container. The controller is configured to: receive first sensor readings over a time period of the first sample and second sensor readings over a time period of the second sample; receive a composition analysis of the first sample and a composition analysis of the second sample; and generate a report comprising: the first composition analyses, the first sensor readings, the second composition analysis, and the second sensor readings.

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

The invention discloses an engine oil temperature estimation method and device, electronic equipment and a storage medium, and is applied to the field of automobiles. According to the engine oil temperature estimation method and device, the current running state of an engine is obtained firstly, the running state comprises the shutdown state, the engine warming state and the engine heating state, then the method for estimating the engine oil temperature is determined based on the running state, the method for estimating the engine oil temperature comprises target factors, and the target factors are determined according to the running state. And finally, estimating the engine oil temperature by using the method. The invention further discloses a device for estimating the engine oil temperature. The accuracy of estimating the engine oil temperature of the engine is improved.

The present invention discloses a wire cutting fluid containing organic / inorganic additives and a preparation method thereof. The wire cutting fluid of the present invention comprises a wire cutting mother liquor containing organic / inorganic additives and water; wherein the wire cutting mother liquor containing organic / inorganic additives comprises engine oil, a primary emulsifier, an auxiliary emulsifier, a rust inhibitor, a defoamer, an organic additive, an inorganic additive and water. The cutting fluid mother liquor of the present invention is prepared by mixing a basic emulsion with organic additives and inorganic additives having synergistic effects, and is a water-based cutting fluid having the advantages of good cooling, rust prevention, electrical conductivity and low pollution.

A turbocharger device relates to the technical field of internal combustion engine supercharging devices and comprises a bearing body, an oil supply pipeline and an integrated bearing. The integrated bearing comprises a pressing end integrated bearing and a vortex end integrated bearing which are arranged in parallel in the axial direction, the bearing body comprises a bearing seat inner wall face, a supporting sleeve is rotationally arranged in the bearing seat inner wall face, and the pressing end integrated bearing and the vortex end integrated bearing are located on the two sides of the supporting sleeve; the pressure end integrated bearing and the vortex end integrated bearing are correspondingly connected with a first oil supply pin and a second oil supply pin which are communicated with inner cavities of the pressure end integrated bearing and the vortex end integrated bearing in the radial direction, and the first oil supply pin and the second oil supply pin are fixed to the bearing body. The split type bearing system is used for solving the problems that although a split type bearing system in the prior art avoids the influence of high temperature, engine oil consumption is large, inner oil film lubrication is insufficient, and cost is high; although an integrated bearing system realizes low cost and structure simplification, the key problems of sufficient lubrication of an inner oil film, high-temperature reliability of a thrust surface and oil control capacity of a gas compressor side are obviously short.

The invention discloses an air compressor control method and device, a controller and a storage medium. According to the specific implementation scheme, the method comprises the steps that under the condition that the internal pressure of the air compressor meets the use requirement of the vehicle, a temperature signal, working time and the rotating speed of the air compressor corresponding to the air compressor are determined; inputting the temperature signal, the working time and the rotating speed of the air compressor into a water content model to obtain the water content of the engine oil of the air compressor; and according to the water content of the engine oil of the air compressor, the operation state of the air compressor is controlled. The temperature signal, the working time and the rotating speed of the air compressor are input into the water content model, the water content of the engine oil of the air compressor is calculated, the water content of the engine oil of the air compressor is monitored in real time, the running state of the air compressor is controlled through the water content of the engine oil of the air compressor, and the problem that the water content of the engine oil of the air compressor cannot be actively controlled in the prior art is solved. The problem of engine oil emulsification in the operation process of the air compressor is solved, and resource waste is reduced.

The utility model discloses a motorcycle engine crankshaft box body with an oil separation chamber, which comprises a crankshaft box body formed by connecting a left crankshaft box body and a right crankshaft box body, crankshaft mounting holes and balance shaft mounting holes are arranged on the left crankshaft box body and the right crankshaft box body, and the crankshaft mounting holes and the balance shaft mounting holes are distributed in a pairwise corresponding mode. An oil collecting chamber is arranged at the lower end in the crankcase body, and the balance shaft mounting hole is arranged close to the maximum oil liquid level position of the oil collecting chamber; the bottom of the oil collection chamber is provided with an oil separation chamber which is arranged close to the balance shaft mounting hole, the upper end of the oil separation chamber is close to the maximum oil liquid height of the oil collection chamber, and one side, far away from the balance shaft mounting hole, of the oil separation chamber is provided with an oil inlet hole; an engine oil filter screen is arranged in the oil separation cavity, and an oil guide channel with one end communicated with the oil separation cavity and the other end communicated with an oil inlet of the engine oil pump is arranged on the side of the oil separation cavity.

The invention relates to a diesel engine oil pan engine oil supply device and method, and relates to the technical field of diesel engines, the device comprises a filter element rotationally arranged in an oil pool body at one end of the bottom of an oil pan, a first driving mechanism is arranged above the filter element, and the first driving mechanism is used for driving the filter element to rotate through rotation of a crankshaft in an upper crankcase; purifying the engine oil through centrifugal separation; the device further comprises an oil supply pipe, one end of the oil supply pipe extends to the position below the filter element, the other end of the oil supply pipe extends to the crankshaft, and an oil supply pump used for conveying purified engine oil into the lubricating system is arranged on the oil supply pipe. The device further comprises a particle storage ring sleeving the upper part of the filter element. According to the oil supply device, the functions of lubricating additive particle storage, discharging, adding and the like are integrated in the oil pan and are tightly combined with the engine oil purification function, an efficient oil supply system is formed, the working efficiency and reliability of the whole lubricating system are improved, and the lubricating performance of engine oil can be greatly improved by adding the lubricating additive particles.

The double-channel hydraulic tappet comprises a shell (1), an upper plunger (2), a lower plunger (5), a base plate (4) and a one-way valve steel ball (6), the upper plunger, the lower plunger and the base plate are all installed in the shell, the base plate (4) is located between the upper plunger and the lower plunger, an opening (21) is formed in the lower end of the upper plunger (2), and the one-way valve steel ball (6) is arranged in the opening (21). The lower end of the upper plunger is sealed through a base plate (4); the lower plunger is provided with an oil return groove (15) and an oil return hole (14), the oil return hole (14) is communicated with the oil return groove (15), a low-pressure cavity (10) is formed between the lower plunger (5) and the base plate (4), and the oil return hole (14) is communicated with the high-pressure cavity (11) and the low-pressure cavity (10) through a gap between the lower plunger (5) and the shell (1). The rocker arm is simple and reliable in structure, compact in assembly and easy and convenient to machine, and can play a role in adjusting the gap between the cam and the rocker arm and providing engine oil with different pressures for the rocker arm so as to change the working state of the rocker arm.

The utility model relates to the technical field of engine oil filter elements, in particular to a filter element drawing tool, which comprises a supporting platform, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism and a drawing mechanism, and is characterized in that the supporting platform is arranged on a step of a filter element cavity; the hand wheel is arranged on the cross rod, and a hand rod of the hand wheel penetrates through the through hole; the positioning drag hook is arranged at the end, away from the transverse rod, of the hand rod, and a bent part is arranged at the bottom end; wherein the hand lever moves in the vertical direction; and the bent part is used for penetrating through a connecting hole in the filter element. According to the utility model, the filter element drawing tool is used, so that the replacement of the filter element is simpler and quicker, and the working efficiency is improved; the firm connection of the positioning drag hook and the filter element ensures the stability and safety in the dismounting process, and reduces the occurrence of accidents; the stability of the supporting platform ensures that the tool does not shake or slide during working, and the accuracy and reliability of operation are improved; and the rotating operation of the hand wheel enables the disassembly to be more labor-saving, and the labor intensity of operators is reduced.

Apparatuses, systems and methods are disclosed for separating oil from a blow-by gas of an engine. An example includes a method that includes passing the blow-by gas to a first oil separating apparatus and a second oil separating apparatus, wherein the first oil separating apparatus and the second oil separating apparatus are physically coupled together along interfacing surfaces and in fluid communication with one another as an array, separating the blow-by gas by passing the blow-by gas through respective filters of the first oil separating apparatus and the second oil separating apparatus, removing the oil from the blow-by gas with the respective filters and recombining the blow-by gas after passing from the respective filters; passing the blow-by gas as a single flow stream from the first oil separating apparatus and the second oil separating apparatus.

Method for configuring a module for detecting the switching of a valve in an oil circulation circuit. Method for configuring a module for determining an oil pressure model for detecting the switching of a valve (113) in an oil circulation circuit (111) in an aircraft turbomachine (110) (100), the method comprising: determining an oil pressure model in the circulation circuit when the valve of the oil circulation circuit has switched and the oil temperature in the circulation circuit is above a first threshold, the oil pressure model being stored in the determination module; and determining a set of functions from the differences between the determined oil pressure model and an oil pressure during an aircraft flight, the set of functions (F) being stored in the determination module. Figure for the abstract: Fig. 1

The invention discloses an oil way system of a driving assembly, which comprises an oil pump, an oil cooler, a driving motor oil way, a speed reducing system oil way, a generator oil way and a speed increasing system oil way, the oil pump pumps oil into the oil cooler, the oil cooler cools the oil, the oil pump and the oil cooler are both arranged on a main shell, the oil way system also comprises a distribution oil cavity and a switch electromagnetic valve, the distribution oil cavity is arranged in the main shell, the oil cooler conveys cooled oil into the distribution oil cavity, the distribution oil cavity comprises a first oil cavity and a second oil cavity, the first oil cavity is communicated with a driving motor oil way and a speed reducing system oil way, and the second oil cavity is communicated with a generator oil way and a speed increasing system oil way; the switch electromagnetic valve is arranged between the first oil cavity and the second oil cavity, and when the switch electromagnetic valve is opened, oil flows into the second oil cavity from the first oil cavity; and when the switch electromagnetic valve is closed, the first oil cavity and the second oil cavity are cut off. On-off of the generator oil way and the speed increasing system oil way is controlled through the on-off electromagnetic valve, under the working condition that the generator does not need to work, the generator oil way and the speed increasing system oil way are closed, the flow resistance of the oil way system is reduced, the working power of the oil pump is reduced, and the working efficiency of the lubricating and cooling system is improved.