38 results about "Engine wear" patented technology

A system and method for ΔI-powered engine diagnostics combine OBD-II data, high-frequency sound, and vibration analysis to detect engine wear and mechanical faults. A detachable puck sensor in the engine bay captures sound and vibration signals, while an OBD-II module collects engine performance metrics. A smartphone app collects and uploads data to a backend AI engine, where Dynamic Time Warping (DTW) aligns event-driven or asynchronous data and time series data from multiple sources, ensuring accurate feature fusion. Machine learning models then detect engine wear, belt degradation, knocking, and bearing faults, generating a diagnostic report with severity assessments and predictive maintenance recommendations. By integrating multi-modal sensor data, this system enhances early-stage fault detection beyond traditional OBD-II diagnostics, offering greater accuracy in assessing physical wear conditions and optimizing vehicle maintenance.

The invention discloses a hybrid electric vehicle energy distribution method based on dynamic load prediction, which is applied to the field of vehicle power management. According to the scheme, a vehicle-mounted central control system is connected with a roadside traffic system to acquire information equipment to form a data transfer library; according to the method, driving records of other vehicles which are highly matched with the driving condition of the vehicle on the same road condition can be obtained through the data transfer library to serve as references so as to predict the load on an unfamiliar road condition, prediction accuracy is higher, energy distribution is optimized, the problems that in the prior art, load response is lagged, and adaptability to the unfamiliar road condition is poor are solved, and the load prediction efficiency is improved. In addition, for the whole congested road condition, by establishing vehicle-vehicle direct connection temporary data communication, vehicles in all road conditions can share driving data backwards, sudden braking and sudden acceleration caused by blind following of a single vehicle are avoided, the overall fuel consumption rate of the road conditions is reduced, optimization of mass energy distribution is achieved, and meanwhile engine abrasion is reduced.

The utility model provides an all-terrain vehicle power system and all-terrain vehicle, the power system comprises an engine, an air filter and an air throttle, the air filter comprises an air filter air inlet pipe and an air filter air outlet pipe, the cross sectional area of the inlet of the air filter air inlet pipe is S; the throttle valve comprises at least one throttle air inlet and at least one throttle air outlet, the throttle air inlet is communicated with the air filter air outlet pipe, the throttle air outlet is communicated with an air inlet of the engine, and the cross sectional area of the throttle air inlet is A; 1.31 < = S / A < = 3.13. The ratio of S to A ranges from 1.31 to 3.13, so that the power of the engine can be improved, the proper air inflow can be controlled, and the engine is prevented from being abraded excessively.

A diagnostic system for assessing engine wear utilizes data from sensors in a vehicle engine compartment and electronic data from a vehicle communications network to provide a comprehensive diagnostic evaluation. The system includes a sensor device with an audio sensor for capturing engine sound, an accelerometer for detecting vibration, and a near-field communication (NFC) tag for sensor information. The sensor device communicates sound and vibration data to a remote server, while a data acquisition and transfer (DAT) device connected to the vehicle's diagnostic port transmits engine performance metrics. A Dynamic Time Warping (DTW) algorithm aligns time-series data from the sensor and vehicle metrics to identify engine problems. The system supports cloud-based diagnostics and enables optimal sensor placement using geo-location or positional data. Applications include smartphone integration, Wi-Fi 6 communication for high-speed data transfer, and scan modes for varying diagnostic detail levels.

1. The name of the design product: transfer case sensor. 2. The use of the design product: the design product is used for installation on the transfer case, and the real-time monitoring of the engine wear state, water emulsification, and pollution state indicators is realized by collecting oil data in the transfer case. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of knock control, and discloses an intelligent control system and method for engine knock and preignition, and the method comprises the following steps: collecting engine knock signal data and preignition signal data, and carrying out the signal processing of the knock signal data and the preignition signal data, the method comprises the following steps: generating knock intensity data and preignition intensity data, and during engine knock and preignition identification, setting multi-stage identification thresholds including a basic threshold, a dynamic self-learning threshold and a temperature compensation threshold, and updating the thresholds in real time by utilizing a self-learning algorithm, so that the engine knock and preignition identification accuracy is improved. The method can effectively adapt to sensor signal characteristic change caused by engine wear, fuel quality difference and environment change, solves the problems of misjudgment and missed judgment caused by a fixed recognition threshold value, ensures the accuracy and reliability of knock and preignition recognition, reduces control errors, and improves the reliability of knock and preignition recognition. And the dynamic property, the economical efficiency and the driving smoothness of the engine are effectively improved.

The invention discloses an engine oil pressure linkage starting control strategy, relates to an engine control technology, and solves the technical problems that a lubricating oil film of an existing high-power and large-cylinder-diameter diesel engine needs long time and is difficult to establish, and the hidden danger that the oil pressure of an engine starter is low exists. The strategy comprises the steps that real-time engine oil pressure and real-time engine oil temperature are obtained, and pre-oil supply is conducted according to the real-time engine oil pressure and the real-time engine oil temperature; according to the real-time engine oil pressure and the real-time engine oil temperature, whether the starting oil pressure requirement is met or not is judged, and when the starting oil pressure requirement is met, the engine is started successfully; and when the starting oil pressure requirement is not met, a motor dragging time adjusting method is triggered and started according to the real-time engine oil pressure and the real-time engine oil temperature. The method can improve the starting efficiency of the engine, reduce the wear of the engine, optimize the energy use, improve the performance of the starting motor, enhance the safety of the starting system and improve the diagnosis and troubleshooting capabilities.

The invention discloses a motor heat dissipation and damping mechanism, and relates to the technical field of motors, the motor heat dissipation and damping mechanism comprises a driving motor, the outer wall of the driving motor is sleeved with a soft rubber liner, the outer wall of the soft rubber liner is connected with a heat dissipation pressing block, one end of the driving motor is connected with a synchronous wheel belt box, and an output shaft of the driving motor is sleeved with a first synchronous wheel; a second synchronous wheel is arranged in the synchronous wheel belt box, the second synchronous wheel and the first synchronous wheel are connected through a synchronous belt, the second synchronous wheel is fixedly sleeved with a linkage rod, and the linkage rod and a driving motor movably penetrate through and extend to be fixedly connected with a sector gear in a sleeved mode. According to the heat dissipation and shock absorption mechanism for the motor, the fastening effect can be achieved through the soft rubber gasket, the heat dissipation pressing block and the square groove hole, the heat dissipation effect of the motor is further improved, in addition, vibration and noise are reduced through the first synchronous wheel, the synchronous belt and the sector gear, loosening of connecting parts is effectively avoided, motor abrasion is prevented, and the service life of the motor is prolonged. The service life of the motor is prolonged.

The invention discloses an engine front end wheel train, an air compressor control system and method and a vehicle, and relates to the field of vehicles, the engine front end wheel train comprises a crankshaft pulley 1, a water pump 2, a motor 3, an air compressor 4 and a tensioning wheel 5 which are connected through a belt 6, and the crankshaft pulley 1 is in a non-pure electric working mode when the vehicle is in a non-pure electric working mode; when the crankshaft clutch and the water pump clutch are both in a closed state, the crankshaft clutch and the water pump clutch are driven by the engine to rotate so as to drag the air compressor 4 to execute inflating operation; when the vehicle is in a pure electric working mode and the crankshaft clutch and the water pump clutch are both in an open state, the motor 3 drags the air compressor 4 to execute inflation operation through the belt 6. When the vehicle is in the pure electric working mode, the newly added motor 3 drags the air compressor 4 to execute the inflating operation, so that the engine does not need to be started frequently to inflate when the vehicle is in the pure electric working mode, the loss of the engine is reduced, and the service life of the engine is prolonged.

Service device (1) with a communication interface (13) configured to receive operating data of a vehicle (3) provided by the vehicle, wherein the operating data includes several sensor measurement data from sensors assigned to the vehicle (3), an engine wear parameter, a brake wear parameter, a current position of the vehicle, a destination of the vehicle, a radio station setting, personalization data, and with an evaluation unit (15) configured to determine a vehicle user profile parameter based on the operating data of the vehicle (3) and with a provision unit (17) configured to select specified information based on the respective vehicle user profile parameter and to make it available at the communication interface (13) for transmission to the vehicle (3).

An engine may include a processor communicatively coupled to a pitch actuator configured to affect a pitch of a plurality of variable pitch blades and a secondary thrust effector device. The processor is configured to change the pitch of the plurality of variable pitch blades via the pitch actuator in response to changes in a target engine parameter a normal operating mode, detect a trigger condition for a wear reduction mode, and switch from the normal operating mode to the wear reduction mode, wherein in the wear reduction mode, the pitch of the plurality of variable pitch blades is maintained at a first angle, and the secondary thrust effector device is controlled in response to the changes in the target engine parameter.

An internal combustion engine 10 comprising a cylinder head 11, a piston 20 and an engine block 12; The piston 20 is slideably mounted in a cylinder bore 16 in the engine block 12 or a cylinder liner 14 therein for reciprocating between a top dead centre (TDC) at a top of the cylinder bore 16 and a bottom dead centre at a bottom of the cylinder bore 16; The cylinder bore 16 comprises a cylinder wall 15 and at least one pocket 40 is recessed into the cylinder wall 15 for controlling the flow of oil during reciprocation of the piston 20. The invention aims to reduce unwanted emissions and engine wear due to unwanted combustion of oil.

The aero-engine wear-resistant bushing machining tool is characterized in that the aero-engine wear-resistant bushing machining tool comprises a core shaft, a guide wheel and a correction wheel, the rotating axes of the core shaft, the guide wheel and the correction wheel are parallel to one another, and working gaps are reserved between the core shaft and the guide wheel and between the core shaft and the correction wheel respectively; the thickness of the working gap corresponds to the thickness of a plate to be machined, the mandrel is driven by a driving device to rotate, the abrasion-resistant oil control sleeve to be machined is driven by rotation of the mandrel to rotate around the mandrel, and the guide wheel and the correction wheel are driven by friction force of the abrasion-resistant oil control sleeve to rotate along with the mandrel. Friction resistance is reduced by loading the deep groove ball bearing, uniform stress is achieved, stress concentration is reduced, and local excessive extrusion deformation is avoided. Beryllium bronze with high abrasion resistance is used for manufacturing the knurled guide wheel to increase rolling friction force, the knurled guide wheel rotates at a constant speed through the bearing to achieve uniform stress without clamping stagnation, starting resistance is reduced, and surface defects are avoided.

The present application provides a VVT phase control method, device, control equipment and engine. When the engine is started, the VVT ​​initial position of the engine is obtained, and the initial position is self-learned; according to the initial position obtained after completing the self-learning, the current self-learning value is determined; according to the current self-learning value and the pre-stored first self-learning value, the first phase deviation value of the self-learning is determined to filter out the electrical signal error and obtain the error due to wear / aging; then according to the first physical phase deviation of the engine, the first phase deviation value and the target VVT position, the corrected target VVT position is determined; based on the corrected target VVT position, the valve phase of the engine is controlled. In this way, by filtering out the electrical signal error and combining the error after engine wear / aging and the physical phase deviation to correct the target VVT position, the VVT ​​phase position control accuracy can be improved, which is beneficial to improving the engine's power and reducing fuel consumption.

The invention discloses a maintenance prompting method and device for an engine and a vehicle, and aims to quantify operation data of the engine and improve the evaluation accuracy of abrasion influence so as to prompt maintenance in time. The maintenance prompting method for the engine comprises the steps that operation data of preset operation parameters of the engine are obtained; calculating a loss index value of the engine according to the operation data of the preset operation parameters of the engine; wherein the loss index value is used for evaluating the influence of the preset operation parameter on engine wear; and when the loss index value is greater than or equal to the loss index control limit, sending maintenance prompt information.

The invention relates to the technical field of engine oil, in particular to engine oil which comprises the following components in parts by weight: 100 parts of hydrogenated base oil, 5-10 parts of a purification dispersant, 0.2-1.2 parts of an antioxidant, 2-8 parts of an anti-wear agent and 1.7-4.2 parts of a metal deactivator, the purification dispersant is styrene modified polyisobutene phenol Mannich base quaternary ammonium salt. The lubricating oil can effectively reduce generation of sediments, prevents engine abrasion, and is low in viscosity and not prone to blockage.

1. Name of the product in this design: Sensor. 2. Application of this design: This design is used to install on a gearbox assembly or engine to monitor engine wear, moisture emulsification, contamination and other indicators in real time by collecting oil data from the engine. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The invention relates to an engine wear monitoring method, a monitoring system, a readable medium, a gas turbine engine and a test system. The monitoring method comprises the following steps: S1, receiving an original signal output by a metal filing sensor for monitoring lubricating oil; s2, carrying out modulation and demodulation on the original signal to eliminate background noise and form an intermediate signal; s3, converting a signal amplitude characteristic of the intermediate signal in a unit time interval into an energy characteristic; and S4, carrying out self-adaptive sliding window model statistics on the energy characteristics so as to judge the metal filing condition of the engine lubricating oil.

Device (1) for characterizing gas turbine engine wear, comprising: - an abradable material (8) comprising a wearing end (80) adapted to be arranged in contact with a flow of gaseous fluid (F) flowing from upstream to downstream of the gas turbine engine (2) when the gas turbine engine (2) is operating; - an ultrasonic transceiver (7) suitable for emitting an ultrasonic wave into the abradable material (8) and receiving a corresponding ultrasonic wave reflected by an inner surface of the wearing end (80); - an electronic circuit (10) connected to the ultrasonic transceiver (7) and configured to calculate information that enables the wear of the gas turbine engine (2) to be characterized.

The application discloses a real-time prediction method for blow-by gas amount based on a crankcase pressure and cylinder pressure difference model, comprising: a cylinder pressure reconstruction output module for providing in-cylinder pressure, in-cylinder temperature and in-cylinder volume in real time; a crankcase pressure sensor installed near a crankcase ventilation pipeline or a main oil passage for measuring the gas pressure in the crankcase in real time; an engine working condition sensor for acquiring engine speed, coolant temperature and intake pressure signals; a blow-by gas amount calculation module based on a Weller gas flow model, using input in-cylinder parameters, an online identification submodule using equivalent flow area and flow coefficient to make the model automatically adapt to engine wear and working condition changes; a flow state judgment submodule automatically judging the gas flow state according to the pressure ratio of the cylinder and the crankcase; and an output and application module for outputting the blow-by gas mass flow value in real time and taking the value as a direct quantitative index of piston-cylinder liner wear, and triggering a maintenance warning when the blow-by gas flow and the blow-by gas flow area exceed preset threshold values.

The utility model relates to a test evaluation device for accelerating engine wear. The device comprises a transition block 1, an engine oil outlet pipe 2, a buffer tank 3, an engine oil return pipe 4, an engine oil drainage pipe 5, an oil drainage control valve 6, a buffer tank support 7 and an oil drainage control valve support 8. The transition block 1 is connected with an engine through a fixing screw; one end of the engine oil outlet pipe 2 is connected with the transition block 1, and the other end is connected with the buffer tank 3; one end of the engine oil return pipe 4 is connected with the buffer tank 3, and the other side is connected with the transition block 1; the device is installed on an engine oil return pipe 4. One side of the engine oil drainage pipe 5 is connected with the buffer tank 3, and the other side is connected with an engine oil pan; the buffer tank 3 is fixed on the buffer tank bracket 7; and the oil drainage control valve 6 is fixed on the oil drainage control valve bracket 8. The connecting device is simple in structure, and all the parts can be connected and fixed through the screws, the double nipples and the hoops. In the use process, the oil drainage control valve 6 can be opened or closed at regular time by matching with an engine bench test control system.

The present invention discloses a method for dynamically coordinating control of a range extender engine and a generator, including a control method for a standby state, a preparation state, a starting control state, an idle control state, a warm-up control state, a speed increase control state, a dynamic coordinated power generation control state, a shutdown preparation control state, a flameout control state, and a fault state. The present invention selects a power generation operating point of the range extender according to an engine start-stop signal and required power generation, and coordinates the engine and the generator to start and stop the engine, and coordinates the transition engine and generator operating points to reach a target operating point for power generation, thereby improving the economy of the whole vehicle and reducing the emission of the whole vehicle. In addition, the present invention reduces the probability of engine start failure of the range extender due to changes in various external and internal conditions by adaptively controlling the engine starting torque, and performs warm-up control and shutdown control of first reducing torque and then reducing speed according to conditions after successful starting, thereby reducing engine wear.

The utility model discloses a sound-insulation and heat-insulation liner for a front cabin cover. The sound-insulation and heat-insulation liner comprises the front cabin cover and an inner liner, a lining plate is arranged in the front hatch cover, a fixing hole is formed in the lining plate, an inner liner is fixed to the lining plate, a first protruding part is arranged in the middle of the inner liner, a plurality of second protruding parts are distributed on the two sides of the first protruding part, and second ventilation holes are formed in the front portion and the rear portion of the first protruding part. The inner liner is arranged on the inner side of the lining plate of the front cabin cover, the first protruding part is located over an engine to play a role in heat preservation, temperature loss is prevented during cold start, the temperature of engine oil is rapidly increased, engine abrasion is reduced, the second protruding part can preserve heat and insulate sound, and the sound insulation and heat insulation effect in a front cabin is further improved.

The invention provides a simulation test method and device for water separation performance after engine oil emulsification, and relates to the field of water separation performance simulation tests.The method comprises the steps that the reaction temperature of a reaction device is adjusted; controlling the liquid storage device to convey the engine oil with the preset water content to the reaction device; the measuring device is controlled to measure the separated water content corresponding to the water separated from the reaction device in real time, the first separated water content is obtained, and the separated water content is the ratio of the mass of the separated water to the mass of the water in the engine oil with the preset water content; under the condition that the reaction duration of the reaction device is equal to the maximum water separation duration of the engine and the first separated water content is equal to a separated water content threshold value, the current reaction temperature is determined as the lowest temperature of the engine when the engine oil with the preset water content is used, and the maximum water separation duration is the maximum duration of water separation of the engine oil by the engine; the problem that in the prior art, the water separation performance of the engine after engine oil emulsification is difficult to determine, and consequently engine abrasion is likely to occur is solved.

This utility model relates to the field of air filter technology and discloses a detonation-type self-cleaning air filter, including a main pipe, an air inlet pipe inside the main pipe, a sound wave amplification pipe fixedly installed inside the air inlet pipe, a detonation generating chamber fixedly installed at the lower end of the sound wave amplification pipe, the detonation generating chamber being a galvanized pipe, a secondary detonation pressurization chamber installed at the upper end of the detonation generating chamber, and a detonation initiation plug fixedly installed at the lower end of the detonation generating chamber. In this utility model, through precise structural design, stable amplification of the detonation wave and uniform dispersion of the clean airflow are achieved, and multi-stage filtration further improves the air filtration effect. Precise control of the detonation process ensures clean, reliable, and efficient operation. Timely exhaust of exhaust gas ensures stable operation of the device, effectively reduces fuel consumption, reduces engine wear, and extends the service life of the equipment.

The invention provides an integrated fuel pump, and belongs to the technical field of fuel pumps, the integrated fuel pump comprises a pump body, a driving assembly used for driving fuel delivery is fixedly connected in the pump body, the fuel inlet end of the pump body is fixedly connected with a connector, and a filtering mechanism used for filtering fuel is arranged in the connector. A double-filtering mechanism and dynamic filtering and cleaning are adopted to avoid blockage of a filtering disc, continuous pure supply of fuel oil is ensured, the combustion efficiency is improved, abrasion faults of an engine are reduced, meanwhile, impurity treatment is intelligent and convenient, manual disassembly is not needed, the maintenance cost and the labor intensity are reduced, shutdown for oil supply is not needed when the two filtering assemblies are cleaned, and the working efficiency is improved. According to the fuel oil system, continuous operation of equipment is guaranteed, the utilization rate and production efficiency of the equipment are effectively improved, meanwhile, the functions of fuel oil conveying, filtering, cleaning and the like are integrated, the installation space is saved, the risk of fuel oil leakage is reduced, and the integration level and stability of the whole fuel oil system are improved.

A hydraulic valve actuation system with controlled valve seating velocity and method therefor are proposed. The system includes an actuator with a housing and a drive assembly formed from a drive piston within the housing and an adjustment pin. In an internal combustion engine application, the adjustment pin contacts and moves an engine valve that controls air and fuel entering an engine cylinder. The actuator provides velocity dampening of the drive piston, via an annulus-shaped fluid communication path defined by at least one surface of the drive piston and at least one opposing surface of a damping chamber formed within the housing. The dampening hydraulically cushions the impact of a bottom of the drive piston against a bottom stop of the actuator during opening of the engine valve, which reduces noise and engine wear. In another example, the system is configured to control an engine valve seating velocity.

This invention provides a gasoline engine lubricating oil composition and its preparation method. The gasoline engine lubricating oil composition of this invention comprises the following components: (A) a nitrogen-containing organoboron compound; (B) an alkyl diphenylamine; (C) polyisobutylene succinimide; (D) a sulfonate and / or a sulfurized alkylphenol salt; (E) zinc dihydrodithiophosphate; (F) an organomolybdenum compound; (G) an ethylene-propylene copolymer; and (H) a base oil in a major amount. The structure of the nitrogen-containing organoboron compound is shown in formula (I) and / or formula (II), with the definitions of each group provided in the specification. The gasoline engine lubricating oil composition of this invention exhibits excellent antioxidant, detergency, and dispersing properties, while also demonstrating good anti-wear properties under extreme pressure and lean-oil friction conditions, effectively suppressing engine wear caused by frequent start-stop cycles in hybrid electric vehicles.

The application relates to the technical field of extended-range hybrid vehicles, in particular to an engine starting control method and device and a vehicle, wherein the method comprises the following steps: obtaining the current engine water temperature of the vehicle; detecting whether the vehicle meets preset extended-range starter starting emission optimization conditions; if yes, confirming the actual cold state level of the engine based on the current engine water temperature; matching the target emission optimization mode of the engine in combination with the current starting parameters of the vehicle; generating at least one preheating action of the engine according to the target emission optimization mode and executing the at least one preheating action until the engine meets corresponding exit standards. According to the application, the cold state level of the engine can be confirmed by monitoring the thermal load state of the engine, and the corresponding optimization mode can be obtained in combination with the vehicle information for different cold state levels, so that the preheating of the engine under different conditions can be adaptively realized, the starting temperature of the engine can be efficiently improved, the emission amount under the cold starting condition of the engine can be reduced, the engine wear probability can be reduced, and the intelligence and practicability are higher.

The application discloses a diesel methanol dual-fuel control method and system for a marine diesel engine and relates to the technical field of marine diesel engines. The main technical scheme is as follows: a three-dimensional pulse spectrum diagram of a basic methanol injection amount is called to obtain an initial methanol injection amount reference value with the current speed and the current throttle opening as indexes; multi-dimensional online feedback parameters of the diesel engine are collected in real time, and a methanol injection amount correction coefficient is obtained through the multi-dimensional feedback parameters; a target methanol injection amount is obtained according to the initial methanol injection amount and the methanol injection amount correction coefficient; and a methanol injector assembly is controlled to inject according to the target methanol injection amount. Through the introduction of multi-dimensional real-time feedback, the methanol injection amount can be dynamically corrected. It is expected to effectively overcome the defects of the traditional open-loop control, such as the inability to adapt to environmental changes, fuel quality fluctuations, engine wear and intermediate cooler efficiency drift, and to ensure that the control strategy always matches the actual working condition.