460 results about "Oil consumption" patented technology

The invention relates to the technical field of automobile power system control, in particular to an automobile start-stop system management method based on intelligent control, which comprises the following steps: S1, a multi-mode environment sensing system; s2, a deep reinforcement learning decision framework; s3, hierarchical cooperative control execution; s4, a real-time health assessment system; s5, a cloud collaborative optimization mechanism; through intelligent start-stop strategy optimization and energy recovery management, under the urban congestion working condition, compared with a traditional start-stop system, the method can further reduce oil consumption by 15-20%; and under the comprehensive working condition, the oil consumption can be reduced by 8-12%. The fuel consumption cost of the vehicle is reduced, the development trend of global energy conservation and emission reduction is also met, and important economic and environmental significance is achieved.

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 belongs to the technical field of vehicle fairing control, and particularly discloses a vehicle fairing control method and system fusing oil consumption and wind resistance, a terminal and a medium. Comprising the steps that the speed, fuel consumption parameters and wind pressure parameters of a vehicle in the running process are obtained, and fuel consumption change parameters and wind pressure distribution characteristic parameters are extracted; a multivariable optimization model with the minimum comprehensive energy consumption as the target is constructed; based on the model, a model prediction control algorithm is adopted to solve the optimal control quantity of the attitude of the fairing in a prediction time domain, and control instructions of the angle and the deflection direction are generated; when environmental disturbance or attitude response deviation is detected, dynamically adjusting a target function weighting coefficient or an input penalty factor to correct control output; and adjusting the posture of the fairing in real time according to the corrected control instruction. Through fusion modeling of fuel consumption parameters and wind pressure characteristic information, predictive control and self-adaptive adjustment of the attitude of the vehicle fairing are realized, and fuel economy and aerodynamic performance can be considered under multiple working conditions.

The invention relates to the technical field of flow measurement, and discloses a ship fuel consumption whole-process online monitoring system and method.The system comprises a data acquisition module, a data regulation module, a temperature compensation module, a fuel consumption abnormity monitoring module, an energy efficiency evaluation analysis module and a data communication reporting module, and fuel flow and temperature data of a ship are acquired in real time; and a standardized data set is obtained after data normalization. According to the real-time fuel oil temperature, temperature-density coupling compensation is carried out on the volume flow, the volume error caused by thermal expansion and cold contraction is eliminated, and therefore the net fuel oil consumption is calculated. The consumption is compared with a preset fuel consumption threshold value in real time, and if the consumption continuously exceeds the threshold value, a fuel consumption abnormity identifier is generated. Afterwards, energy efficiency grade evaluation is carried out on the fuel oil use efficiency in combination with the real-time navigation state of the ship to obtain an energy efficiency analysis result, and the energy efficiency analysis result is transmitted to a remote monitoring platform through a ship communication channel; according to the invention, the accuracy of ship fuel consumption whole-process online monitoring can be improved.

The invention discloses a vehicle fuel consumption management method, system, device and product. The method comprises the steps of obtaining vehicle dynamic data; abnormal monitoring and alarm processing are carried out on the vehicle dynamic data, and an abnormal alarm event is generated; performing driving behavior analysis processing on the vehicle dynamic data to obtain a driving behavior report; performing dynamic route and speed optimization analysis and vehicle condition and energy consumption correlation optimization analysis processing on the vehicle dynamic data to obtain an optimization suggestion; and carrying out visual display on the abnormal alarm event, the driving behavior report and the optimization suggestion, and receiving an interaction instruction to carry out oil consumption management on a target vehicle. The embodiment of the invention can improve the fuel consumption management of the vehicle, and can be widely applied to the technical field of vehicle management.

The utility model discloses a gearbox for an oil-electricity double-engine ship. The gearbox comprises a box body, the diesel oil input component comprises a first input shaft, a first driving gear is sleeved on the first input shaft, and the first input shaft is provided with a first transmission gear and a first clutch; the reversing shaft part comprises a reversing shaft, a second driving gear is sleeved on the reversing shaft, the reversing shaft is provided with a second transmission gear and a second clutch, and the second transmission gear is meshed with the first transmission gear; the motor input component comprises a second input shaft, the second input shaft is sleeved with a third driving gear in an empty mode, the third driving gear is meshed with a first driven gear, the second driving gear is fixedly sleeved with the first driven gear, and the second input shaft is provided with a third clutch; the output shaft component comprises an output shaft and a second driven gear, and the second driven gear is meshed with the first driving gear and the second driving gear. According to the scheme, the diesel engine or the motor is independently used for driving, intelligent switching of the diesel engine and the motor can be achieved at any speed, oil consumption is reduced, and power performance is improved.

The invention discloses a range-extending power generation control device and method for a range-extending vehicle, and the method comprises the steps: enabling the vehicle to enter a mute mode when responding to a mute instruction, enabling a range extender to operate at an NVH optimized working condition point through responding to a first torque request and a first rotating speed request, and enabling the range extender to operate at an NVH optimized working condition point; meanwhile, the range extender is controlled to be switched to a sub-mode in a mute mode according to the current electric quantity state of the battery; and when the mute instruction is not responded, the vehicle enters a normal mode, the range extender is made to operate at the minimum oil consumption rate working condition point by responding to the second torque request and the second rotating speed request, and meanwhile the range extender is controlled to be switched to a sub-mode in the normal mode according to the current electric quantity state of the battery. The problems of high noise and poor user experience caused by neglecting the NVH demand in the power generation control of the existing extended-range automobile are solved, and meanwhile, the low oil consumption demand and battery protection are considered.

The invention relates to an earth-rock engineering rolling construction monitoring method and device, electronic equipment and a storage medium. The method comprises the following steps: dividing a construction area into a plurality of target block-shaped areas; in the construction process of the construction area, collecting real-time state data for a currently constructed target block-shaped area; analyzing the real-time state data based on a rolling pass intelligent algorithm, and determining a target detection result; on the basis of the target detection result, a compensation rolling strategy is generated for the target block area which is not qualified in rolling; wherein the compensation rolling strategy comprises at least one of a compensation path and a compensation parameter; the compensation rolling strategy is sent to the construction equipment; wherein the compensation rolling strategy is used for controlling the construction equipment to complete rolling operation. Thus, granulation management of the construction area can be achieved, accurate coordinate positioning is provided for subsequent repair, and timeliness is guaranteed; and an optimal pressure supplementing path is planned through an algorithm, so that the road roller is prevented from repeatedly rolling a qualified area, and invalid oil consumption and equipment loss are reduced.

The utility model relates to the technical field of mining equipment, and provides an excavator working device with a fine-adjustable bucket, which comprises a rack, a bucket and a driving assembly unit, the driving assembly unit comprises a lifting mechanism, a bucket adjusting mechanism and a control unit; the lifting mechanism is used for loading and unloading materials through the bucket, and the bucket adjusting mechanism is used for achieving transverse swing of the bucket. The control unit is used for controlling the actions of the lifting mechanism and the bucket adjusting mechanism; the lifting mechanism is arranged on the rack; the bucket adjusting mechanism is arranged on the lifting mechanism, and the bucket is arranged on the bucket adjusting mechanism. According to the utility model, the decoupling with the movement of the vehicle body is realized when materials are loaded, the loading and unloading tasks of the materials can be still completed under the condition that the position of the vehicle body is kept unchanged, the materials are more flexibly shoveled, and the oil consumption is reduced; when meeting uneven road conditions, the bucket can be controlled to be finely adjusted to change the gravity center, and stable driving is achieved; energy consumption is saved, accurate dynamic weighing is achieved, and control precision is improved.

The invention discloses a ship navigation oil consumption estimation method based on artificial intelligence, and particularly relates to the field of navigation oil consumption estimation, and the method comprises the steps: obtaining a ship navigation state, carrying out manual operation, carrying out the external environment data, carrying out the preprocessing, carrying out the dimension reduction through a feature screening network, generating navigation features, carrying out the distillation training of a lightweight model, and monitoring the actual oil consumption and an estimation error. And circularly updating. According to the ship navigation oil consumption estimation method based on artificial intelligence, through a feature screening network, the data dimension of an input model is reduced, the edge model calculation amount is reduced, the reasoning real-time performance is improved, and the system resource utilization rate and stability are guaranteed; knowledge of the first neural network model is migrated to the lightweight second neural network model, so that the fuel consumption pre-estimation reasoning process responds more quickly, and the real-time requirement is met; by collecting a new data dynamic optimization model, implementing a rollback mechanism and distinguishing short-term fluctuation and long-term degradation, it is guaranteed that the method continuously adapts to ship navigation state changes, and high estimation precision is maintained.

The invention provides an engine control method and device, a computer readable storage medium and a vehicle. The method comprises the steps that under the condition that an engine is in an idling working condition, the opening degree of an exhaust gas recirculation valve of the engine and the opening degree of a throttle valve of the engine are adjusted to the corresponding preset opening degrees correspondingly; the idling working condition is the working condition of non-load operation of the engine; after the opening degree of the exhaust gas recirculation valve and the opening degree of the throttle valve are adjusted to the corresponding preset opening degrees correspondingly, the pressure of an intake manifold of the engine is obtained; under the condition that the pressure of the intake manifold is smaller than or equal to the pressure threshold value, the opening degree of the exhaust gas recirculation valve and the opening degree of the throttle valve are increased, so that the pressure of the intake manifold is larger than the pressure threshold value, and the problem that in the prior art, the engine oil consumption generated by pumping engine oil is high due to the fact that the pressure of the intake manifold is low under the engine idling working condition is solved.

The invention provides an ECVT variable speed power system which comprises an engine, a generator, a power battery pack, a motor and a drive axle assembly, the generator is electrically connected with the power battery pack, and the power battery pack is electrically connected with the motor; a first shaft is arranged at the output end of the engine, the first shaft is in transmission connection with an input shaft of the generator, and an intervention clutch is arranged on the first shaft. A second shaft is arranged at the output end of the motor, a planet wheel mechanism is arranged on the second shaft, a sun wheel of the planet wheel mechanism is in transmission connection with the second shaft, a gear ring is in transmission connection with the driven end of the intervention clutch, and a planet carrier is in transmission connection with an input shaft of the drive axle assembly. According to the invention, the planet wheel mechanism is driven by the motor, so that stepless speed change is realized; meanwhile, switching of multiple modes of a pure electric mode, a series mode and a hybrid mode can be supported, it is guaranteed that the engine operates in an economic interval, the energy efficiency is improved, oil consumption is reduced, and the use cost is low.

The invention discloses a map-based predictive cruise oil-saving control method, which comprises the following steps of: firstly, acquiring slope information of a front road based on an offline map, dividing road condition types according to the slope information, and then dividing the whole course into a plurality of road sections at fixed intervals; secondly, for each road section, calculating vehicle driving energy including driving force, kinetic energy change and resistance consumption; thirdly, a comprehensive cost function with the lowest oil consumption and the stable vehicle speed as targets is constructed, and the optimal target vehicle speed of each road section is solved with the principle of total cost minimization; and finally, the power consumption of each section is calculated based on the optimal vehicle speed, the energy distribution of an engine and a motor is prospectively and cooperatively planned, and the state of charge (SOC) of a battery is dynamically adjusted to be maintained in a high-efficiency interval (such as 0.2-0.95), so that the optimization of the global energy consumption is realized. The fuel consumption of the vehicle can be remarkably reduced, the endurance mileage is increased, and important economical efficiency and environmental protection value are achieved.

The invention relates to the technical field of aircraft scheduling management, in particular to an aircraft push-out and taxiing collaborative decision-making method, which constructs a cosine curve push-out rate control module, a push-out and taxiing collaborative decision-making model construction module and an adaptive algorithm design module. Searching an optimal queuing threshold value on multiple runways; secondly, multiple actual operation constraint conditions are emphatically considered, and a collaborative decision-making model with the dual optimization objectives of minimizing the total push-out time deviation duration and the total take-off time deviation duration of the aircraft and minimizing the total departure penalty cost and the oil consumption cost is constructed; and then fusing a Markov chain algorithm of continuous time, a genetic simulated annealing algorithm and a Q-learning reinforcement learning algorithm, scientifically arranging a departure aircraft scheduling sequence, deducing time, a sliding path and target runway distribution through an algorithm solving model, and finally improving the operation efficiency of the multi-runway airport in a mixed operation mode.

The invention discloses an engine oil consumption calculation and early warning method for a vehicle engine. The engine oil consumption calculation and early warning method comprises the following steps that S1, engine operation parameters are obtained, wherein engine rotating speed and fuel consumption parameters in engine operation data are obtained; s2, extracting engine oil consumption by interpolation: extracting the engine oil consumption under a corresponding working condition from a pre-constructed engine oil consumption model through an interpolation method according to the engine rotating speed and the fuel consumption; s3, accumulative calculation and unit conversion, wherein accumulative calculation and unit conversion are conducted on the multiple sets of engine oil consumption, and accumulative engine oil consumption is obtained; and S4, comparison and alarm triggering: triggering a corresponding alarm prompt according to a comparison result of the accumulated engine oil consumption and a preset engine oil consumption limit value. By means of the method, real-time and accurate calculation of the engine oil consumption under the full working condition of the engine is achieved, the hysteresis quality and estimation errors of manual inspection are broken through, and engine oil consumption data are upgraded to a real-time continuous value from a regular discrete value.

The invention relates to the technical field of engine oil consumption control, in particular to an oil-saving control method and system based on the cooperative game theory and behavior analysis and a vehicle. The method comprises the following steps: determining N driving behavior characteristics according to driving behavior data; inputting the driving behavior characteristics into an oil consumption prediction model, and predicting to obtain an oil consumption prediction value; and calculating the marginal contribution degree and the fuel-saving potential coefficient corresponding to each driving behavior characteristic, and determining the fuel-saving potential value of each driving behavior characteristic according to the marginal contribution degree and the fuel-saving potential coefficient. According to the method, the complex nonlinear relation between the driving behaviors and the fuel consumption is captured through the machine learning model, the marginal contribution degree of each driving behavior to the fuel consumption is determined through the Shapley value, and then the fuel-saving potential value of each driving behavior is determined. And providing targeted driving suggestions for each driving behavior of the driver according to the fuel-saving potential value.

This cylinder has an inner wall surface on which a piston with a piston ring slides, and a plurality of recessed portions (14) formed in a stroke central region of the inner wall surface (12) by laser processing such that the surface roughness of a bottom surface (14A) of each recessed portion (14) satisfies at least one of a first state in which a core-portion level difference (Rk) after polishing the bottom surface is less than 1.6 μm, a second state in which a protruding valley-portion depth (Rvk) after polishing the bottom surface is less than 1.3 μm, a third state in which the core-portion level difference (Rk) after performing a chemical conversion treatment and polishing on the bottom surface is less than 1.1 μm, and a fourth state in which the protruding valley-portion depth (Rvk) after performing the chemical conversion treatment and polishing on the bottom surface is less than 0.9 μm. Consequently, friction resistance is reduced, fuel efficiency is improved, or oil consumption is reduced.

The application relates to the field of sanitation operation scheduling, in particular to a sanitation operation scheduling method based on the Internet of Things, which comprises the following steps: determining an iterative stop condition of a load CEEMDAN model based on time local weighted variance of load data, so as to generate vehicle load characteristics; generating vehicle oil consumption characteristics through an oil consumption CEEMDAN model based on statistical values of load data residuals and oil consumption data residuals, so as to calculate oil consumption channel residual signals; generating comprehensive vehicle carrying characteristics through a feature extraction model based on a multilayer perception machine, a gating mechanism and a cross-modal attention mechanism; and generating corrected vehicle garbage load through a long short-term memory network and a fully connected layer architecture. The application realizes efficient noise reduction and accurate decomposition of non-stationary time series data of oil consumption and load, realizes accurate processing of Internet of Things data of garbage transfer vehicles, improves the operation efficiency of the garbage transfer vehicles and reduces the operation cost.

The invention discloses a variable-displacement water pump for an engine and a water pump displacement control method, and relates to the technical field of water pumps, the variable-displacement water pump comprises a pump body, an impeller disc, an elastic part and a driving part, a pump shaft is rotationally connected to the center of the pump body, an impeller cover is fixedly connected to one end of the pump shaft, and a plurality of blades are arranged on the face, facing the pump body, of the impeller cover in the circumferential direction; the impeller disc sleeves the pump shaft, the impeller disc and the impeller cover are coaxially and oppositely arranged, the impeller disc can slide in the axial direction of the pump shaft, the impeller disc is provided with holes allowing the blades to penetrate through, the hole walls of the holes and the peripheral surfaces of the blades define liquid drainage intervals, the pump shaft is sleeved with the elastic piece, one end of the elastic piece abuts against the impeller disc, and the other end of the elastic piece abuts against the impeller disc. The driving part is arranged on the face, away from the impeller cover, of the impeller disc, the driving end of the driving part abuts against the impeller disc, and the acting force of the elastic part is opposite to that of the driving part. The size of the liquid drainage interval is adjusted through cooperation of the driving piece and the elastic piece, and variable displacement and oil consumption reduction are achieved.

A test method of gasoline engine generator set on engine test bench belongs to the technical field of engine test. The general engine test bench is reversibly and modularly transformed. The original power absorption device, the control and measurement industrial computer, the thermal / NVH collection system and the INCA computer are retained. The rectification, power measurement, adjustable electric load and oil consumption instrument device are newly added. The control system is reconstructed in double modes. The generator set test mode is added and the control function of the power absorption device is shielded. The speed / torque closed-loop control logic taking the adjustable electric load as the regulated variable is established. Relying on the synchronous collection of the unified clock, the microsecond time stamp alignment collection of the oil consumption, thermal, power, NVH and AC / DC electric performance of the generator set is realized. The test is carried out by reusing the extreme environment simulation system of the test bench. The transformation is reversible and non-damaging, does not affect the original function, can greatly reduce the equipment investment, improve the utilization rate of the test bench and provide support for the performance optimization of the generator set.

The invention discloses an engine pedestal oil supply pressure regulating system which comprises an engine assembly, a plurality of oil depots, an oil tank and a regulating assembly, the engine assembly is used for measuring oil consumption, the oil depots are arranged side by side and used for storing different types of oil products, and the oil tank is arranged above the engine assembly and used for temporarily storing the oil products. The oil tank can communicate with the multiple oil depots and the engine assembly, and the regulation and control assembly is arranged between the oil tank and the engine assembly and between the oil depots and used for controlling the oil tank to communicate with the engine assembly and the oil depots. According to the invention, the problems that gas exists in fuel oil and the pressure is violently fluctuated after pressure reduction due to relatively large pressure fluctuation when a pressure reducing and regulating valve group is used for supplying oil and regulating pressure for an engine pedestal can be effectively solved.

The application discloses a marine ultrasonic oil consumption measuring device and belongs to the technical field of oil consumption measurement. The device solves the technical problem that traditional fuel tank oil consumption meters and digital multifunctional oil consumption meters cannot meet the requirements of marine oil consumption measurement. The device comprises an oil inlet flowmeter, an oil return flowmeter, an oil return flowmeter interface CAN wire, an oil inlet flowmeter interface CAN wire and a ship end data acquisition unit. The oil inlet flowmeter is installed on an oil inlet pipe, and the oil return flowmeter is installed on an oil return pipe. The oil inlet flowmeter and the oil return flowmeter have the same structure. The oil inlet flowmeter comprises a first ultrasonic oil consumption sensor, a second ultrasonic oil consumption sensor and a control module. The time difference method is adopted to measure the flow between the first ultrasonic oil consumption sensor and the second ultrasonic oil consumption sensor. At the same time, the flow of the oil inlet pipe is monitored by the oil inlet flowmeter, the flow of the oil return pipe is monitored by the oil return flowmeter, and the flow of the oil inlet pipe and the flow of the oil return pipe are subtracted to obtain the fuel consumption of the marine main engine at the moment.

The invention belongs to the technical field of ship navigation energy saving, and provides a sail navigation aid energy-saving efficiency evaluation method based on time calendar simulation. Navigation state monitoring data of a target ship sailing on a target route is read through a single-ship historical navigation database and an actual ship leg oil consumption record database constructed based on actual navigation data of the target ship, so that the navigation state monitoring data can truly reflect wind field characteristics and actual operation characteristics in navigation of the target ship; and data support is provided for subsequent calculation of sail navigation-aiding thrust. Time calendar simulation is carried out through a target sail stress model matched with the sail type so as to simulate the actual operation environment of the sail and calculate the navigation-aided thrust of the sail, the fuel-saving ratio of the sail is calculated according to the ship speed, the navigation-aided thrust, the main engine rotating speed, the unit operation fuel consumption rate and the actual fuel consumption, and the fuel-saving ratio of the sail is calculated according to the fuel-saving ratio. And evaluating the energy-saving efficiency of the sail on the target ship so as to improve the accuracy of evaluating the energy-saving efficiency of the sail.

The invention relates to the technical field of hydraulic pressure, in particular to a switching valve bank, a hydraulic control valve bank and a hydraulic system. A switching valve group comprises at least two pressure oil ports, at least one valve body, at least one valve body, at least one valve body and at least one valve body, the oil supply path is correspondingly communicated with the pressure oil port; the switching valves are arranged corresponding to the pressure oil ports, pressure oil introduced by each pressure oil port flows to the corresponding oil supply way and the corresponding switching valve, and when the switching valves are located at the first position, the pressure oil ports are unloaded through the switching valves; when the switching valve is located at the second position, pressure oil introduced by the pressure oil port cannot pass through the switching valve; when the switching valve is located at the third position, the pressure oil port supplies oil to the standby accessory through the switching valve. The problems that in the prior art, due to the fact that an unloading channel of a hydraulic system of an excavator passes through all valve elements, accumulated pressure loss is large, and oil consumption in a standby state is increased are solved; and the service life of the hydraulic pump is greatly shortened due to the fact that the standby accessory can only be fixedly driven by the same hydraulic pump.

The application discloses a main speed reducer shell of an automobile driving axle, which comprises a shell provided with an oil channel structure, wherein a reduction working cavity and an output working cavity are formed in the shell, the oil channel structure supplies, collects and returns oil to the reduction working cavity, and an oil return port of the oil channel structure is communicated with the output working cavity; the reduction working cavity is divided into an input shaft chamber and an output shaft chamber, and the oil channel structure comprises a first oil hole, a tangential drainage plate, an oil collecting bag, a through oil channel and an oil return channel which are arranged on the shell; an outlet of the first oil hole is communicated with an inlet above an output shaft chamber shaft seat surface, and the tangential drainage plate is arranged at the outlet of the first oil hole and is tangent to a rotating working surface in the output shaft chamber. On the basis of ensuring lubricating effect, the speed reducer shell greatly reduces oil consumption, and the excess lubricating oil can be circulated, distributed and reused, thereby improving grease utilization rate and reducing high production cost caused by opening and grooving in independent oil supply.

The utility model relates to building engineering equipment environmental protection monitoring technical field discloses a kind of intelligent carbon emission monitoring and optimization device of building engineering construction equipment, including monitoring box, installation component and detection component, the installation component is used to install monitoring box on construction equipment, the detection component is arranged on monitoring box and is used to detect construction equipment carbon emission relevant data, fuel flow sensor can accurately collect construction equipment fuel flow, data is transmitted to carbon emission calculation module in real time by wire, carbon emission calculation module can quickly complete carbon emission amount calculation, carbon emission calculation module is electrically connected with signal transmitter, carbon emission amount data can be transmitted to signal transmitter, signal transmitter cooperates with electromagnetic contact plate and linkage rod, the linkage adjustment of equipment engine throttle is realized, reduce invalid oil consumption, reduce carbon emission amount, display screen can intuitively show the carbon emission data generated by carbon emission calculation module, improve monitoring convenience and optimization timeliness.

The invention relates to the technical field of new-generation information technology and intelligent manufacturing, in particular to a private car public intelligent metering system based on multi-source data and electronic fences, which is characterized in that GPS mileage, OBD real-time oil consumption and IMU road condition data are automatically acquired through a vehicle-mounted intelligent terminal, and a multi-dimensional accurate cost metering model is constructed by combining an OCR bill recognition technology; the electronic fence technology is used for automatically identifying and stripping the official business journey, and only the official business journey is subjected to charge accounting; according to the system, the problems that traditional quota subsidy is not public, mileage subsidy is not accurate, bill reimbursement is tedious and the like are solved, scientific and accurate cost metering and efficient automation of a management process are realized, and the management efficiency is improved. And meanwhile, the privacy of employees is effectively guaranteed in the data processing process.

The utility model discloses a diesel engine timing system transmission structure with an oil-resistant belt and a diesel engine. The diesel engine timing system transmission structure comprises a driving wheel. The driving wheel comprises a driving wheel and a driving gear coaxial with the driving wheel; the air compressor gear and the crankshaft gear are meshed with the driving gear, the idle gear is meshed with the crankshaft gear, and the fuel pump gear and the oil pump gear are meshed with the idle gear. The timing oil-resistant belt is used for realizing transmission of the driving wheel and the driven wheel; and the tensioner is used for tensioning the timing oil-resistant belt. The wet type timing oil-resistant belt is adopted to achieve transmission, and noise, friction loss, weight, transmission efficiency, oil consumption, emission and the like are obviously improved.

According to the engine system, the intake valve of the engine body is connected with the intake pipeline, and the exhaust valve of the engine body is connected with the exhaust pipeline, so that normal operation of the engine body is achieved; the engine body comprises a variable valve timing system, and the variable valve timing system comprises at least three different VVT MAPs used for controlling opening timing of an intake valve and closing timing of an exhaust valve so as to control the engine system under different operation conditions. According to the invention, the air inlet amount of the engine body can reach the best under different operation conditions, so that the engine system can reach higher combustion efficiency under different operation conditions, the oil consumption is reduced, and the economical efficiency of the engine system in the operation process is improved.

The invention discloses an idling fuel consumption optimization control method and system for a commercial diesel vehicle, and relates to the technical field of whole vehicle systems.The method comprises the steps that the target idling rotating speed and the allowable rotating speed deviation range are set, the vehicle runs in the idling test state without additional loads, and the actual rotating speed of an engine is kept within the deviation range in the parameter adjusting process; the main injection oil injection timing, the pilot injection oil injection timing and the pilot injection oil quantity are sequentially adjusted based on oil consumption evaluation, and a calibration parameter combination covering the target rotating speed range is formed by recording oil consumption data of all adjustment points and gradually optimizing parameters; and finally, all target rotating speed parameters are rechecked, and the idling operation stability and the oil consumption optimization effect are ensured. By systematically adjusting each fuel injection parameter and keeping the rotating speed stable, the problem that the fuel consumption evaluation is inaccurate due to the fact that a single-point data and fixed sequence mode is mostly adopted in traditional idling fuel consumption calibration and a parameter coupling relation cannot be fully reflected is solved, and idling fuel consumption optimization and stability synchronous improvement are achieved.