16 results about "Engine wear" patented technology

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.

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.

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.

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).

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.

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.

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.

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.

This invention provides a hydrogen fuel cell internal combustion engine lubricating oil composition and its preparation method. The hydrogen fuel cell internal combustion engine lubricating oil composition of this invention comprises the following components: (A) a nitrogen-containing organoboron compound; (B) a phenolic ester; (C) polyisobutylene succinimide; (D) salicylates and / or sulfurized alkylphenol salts; (E) zinc dihydrogen dithiophosphate; (F) an ashless friction modifier; (G) polymethyl methacrylate; 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 hydrogen fuel cell internal combustion engine lubricating oil composition of this invention exhibits excellent antioxidant, detergency, dispersing, and anti-wear properties, effectively reducing engine wear caused by emulsification of hydrogen fuel cell internal combustion engine oil due to increased water content.

The invention discloses an intelligent lubrication control system and a vehicle, and the intelligent lubrication control system comprises a multi-mode sensing module which is configured to obtain oil supply state data and vehicle driving data; the control module is configured to predict the vehicle working condition based on the oil supply state data and the vehicle driving data to obtain a predicted working condition, and determine a corresponding lubrication strategy based on the predicted working condition; and the execution module comprises at least one of an oil way management unit, a heat management unit and an energy unit and is configured to execute corresponding actions based on the lubrication strategy. Through predictive control and seamless mode switching, it is ensured that a friction pair can obtain sufficient lubrication in time under any working condition, and engine abrasion is remarkably reduced.

Device (1) for characterizing gas turbine engine wear, comprising: - an abradable electronic board (8) comprising at least one abradable electronic track (81), the abradable electronic board (8) being designed to be arranged in contact with a flow of gaseous fluid flowing from upstream to downstream of the gas turbine engine when the gas turbine engine is in operation; - a measurement electronic board (7) electrically connected to the abradable electronic track (81) so as to form an electric circuit (CE), the measurement electronic board (7) being suitable for determining information that enables the wear of the gas turbine engine (2) to be characterized.

The invention discloses a methanol engine low-temperature cold starting method and device, and relates to the technical field of methanol engine low-temperature starting. The method comprises the steps that in response to a vehicle using intention signal of a user, the environment temperature and the initial temperature of engine cooling liquid are obtained, and if the initial temperature of the engine cooling liquid is lower than a first temperature threshold value, the engine cooling liquid is started; or if the environment temperature is lower than the environment temperature threshold value, it is judged that a low-temperature cold start mode is started; controlling a PTC (Positive Temperature Coefficient) heater connected in series in an engine coolant small circulation loop to work so as to heat the coolant; when the temperature of the cooling liquid reaches a first target temperature meeting the cold start condition, a start ready signal is generated and sent out; after an engine starting instruction is responded, work of the PTC heater is stopped firstly, then an engine starting program is executed, through efficient and accurate preheating control, atomization and evaporation conditions of methanol fuel in a low-temperature environment are fundamentally improved, rapid and reliable starting of a methanol engine is achieved, and meanwhile starting energy consumption and engine abrasion are reduced.