52 results about "Fuel efficiency" patented technology

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

This invention discloses a hybrid drive system based on a three-speed transmission, including a front axle power assembly, a three-speed hybrid transmission, a rear axle drive assembly, and an energy management system. The front axle power assembly includes a connected engine and a P1 motor. The input end of the three-speed hybrid transmission is connected to the P1 motor via a clutch, and the output end of the three-speed hybrid transmission is connected to the front wheels of the vehicle. The rear axle drive assembly is connected to the rear wheels of the vehicle and includes a P4 motor. This invention's three-speed hybrid drive system, with its dual-motor configuration, enables pure electric rear-wheel drive, series rear-wheel drive, parallel front-wheel drive, and four-wheel drive modes. It can enter parallel operation at 0 speed, and a traction mode is set to ensure that the engine and motor enter parallel operation at low speeds to increase wheel-side torque. By integrating the three-speed transmission with the P1 motor and setting the P4 motor to drive the rear wheels, fuel efficiency is improved while reducing the hybrid gearbox size, simplifying layout, and enhancing feasibility. This invention also discloses a vehicle and a control method for the three-speed hybrid drive system.

The present application belongs to the technical field of energy saving and consumption reduction of titanium dioxide production, and particularly relates to a method for energy saving and pollution reduction in the calcination process of sulfuric acid method titanium dioxide. The present application realizes the cascade utilization of high-temperature to medium-low-temperature waste heat through the integrated scheme of "preheating and quality improvement + oxygen-rich calcination + tail gas synergistic desulfurization and denitrification + resource utilization of by-products", that is, the calcination tail gas (1000-1100℃) is first used to generate steam for production through a waste heat boiler, and then is used for preheating and drying metatitanic acid after being cooled, thereby realizing the cascade utilization of high-temperature to medium-low-temperature waste heat, and simultaneously, the oxygen-rich combustion improves the fuel efficiency, the natural gas combustion is more sufficient, the energy consumption per unit product is reduced by 30-40%, and the ammonia method is used to simultaneously remove SO2 and NO x in a single reactor, the desulfurization efficiency is greater than or equal to 95%, the denitrification efficiency is greater than or equal to 85%, the concentration of dust in the tail gas after being removed by a bag filter is less than or equal to 10 mg / Nm3 for emission, the unity of environmental benefits and economic benefits is realized, and a new path is provided for the green upgrading of the sulfuric acid method titanium dioxide industry.

The application relates to the technical field of fuel and additives thereof, in particular to alcohol fuel containing catalysis and additives thereof, the alcohol fuel containing catalysis disclosed by the application is composed of C1-C7 alcohol and hydrocarbon, a rare earth compound catalytic material is used in the fuel, the rare earth compound contains hydroxyl groups or phenyl groups or C5-C 25 groups or carboxyl groups or amine groups or metals, the alcohol fuel formula disclosed by the application has adjustable and high calorific values, can be well adapted to internal combustion engines or engines for testing, the alcohol fuel disclosed by the application is a potential new alternative energy source, and can solve the environmental protection problem of fossil fuels and accelerate fuel efficiency.

The utility model relates to outdoor articles technical field discloses a kind of multi-fuel portable conical outdoor cooking device, including double-layer conical plate one, the double-layer conical plate one includes double-layer conical plate two, the top inner wall of double-layer conical plate two is fixedly connected with two support rods one, the top of two the support rod one is fixedly connected with pot one, the top of pot one is fixedly connected with top cover one. Including single-layer conical plate, the top of single-layer conical plate is fixedly connected with two support rods two, the inside of double-layer conical plate one is provided with alcohol stove, and the inside of single-layer conical plate and double-layer conical plate is provided with alcohol stove. In the utility model, effectively handle the problem that outdoor cooking device exists in use cannot adapt to multiple fuels and combustion is unstable and fuel efficiency is low. The diversity of outdoor cooking experience is improved, and more universal cooking solution is provided for outdoor enthusiasts.

This application relates to the field of civil aviation optimization technology, and in particular to a dynamic fuel consumption optimization system for civil aircraft based on real-time route data. The system includes modules for data storage, input, multi-source information fusion and feature extraction, intelligent evaluation, adaptive decision support, and output response. The system extracts multi-dimensional features by fusing real-time route and QAR data, constructs a correlation dynamic evaluation model using gradient boosting decision trees, simultaneously calculates flight performance index, fuel efficiency index, and correlation score, and generates a structured report based on a decision rule base, including cost index adjustment suggestions, altitude change schemes, and expected fuel savings predictions. This application enables dynamic and quantitative evaluation of the correlation between route environment and fuel consumption, overcomes the lag of traditional planning, and achieves precise and personalized flight strategy optimization, resulting in significant benefits in reducing costs, improving on-time performance, and reducing emissions.

To provide a vehicle drive system that can maintain the oil temperature at an appropriate level and improve fuel efficiency. [Solution] Case 3A has a vertical wall portion 5A that supports the input shaft and extends vertically to demarcate the inside and outside of Case 3A. A suction oil passage 31 communicating with the strainer and the oil pump 30, a discharge oil passage 32 that flows oil from the oil pump 30 toward the object to be lubricated, and a cooler inlet oil passage 33 that branches off from the discharge oil passage 32 and connects the discharge oil passage 32 to the oil cooler 7 are formed in the vertical wall portion 5A. The discharge oil passage 32 extends linearly at an inclination with respect to the radial direction from the center of the oil pump 30, and the cooler inlet oil passage 33 branches off from the discharge oil passage 32 at an inclination with respect to the direction of extension of the discharge oil passage 32 near the discharge port of the oil pump 30.

The bore is reduced while the stroke is not lengthened to maintain the required displacement. [Solution] If we consider a square combustion chamber with a displacement of approximately 500cc, a bore and stroke of 54mm x 54mm x 4 pistons results in a very small bore and stroke of 494.6cc, compared to a normal single-piston engine with a bore and stroke of 85.72mm x 85.72mm and a displacement of 494.6cc. With an area ratio of 2.52 to 1 compared to a normal single-piston engine, the 4 pistons will experience more than 2.5 times the combustion pressure if the compression ratio is the same. If a normal single-piston 3-cylinder 1484cc engine produces 100 horsepower, then a 4-piston engine would theoretically produce 250 horsepower. And all this with the fuel efficiency of a naturally aspirated 1.5L engine. Although there are considerable mechanical losses due to the movement of four pistons and two crankshafts, the resulting increase in power more than compensates for these losses.

This application provides a vehicle control method, device, vehicle, storage medium, and program product, relating to the field of vehicle technology. The method includes: acquiring vehicle information and, based on the vehicle information and a preset speed limit, determining whether to send a command to limit engine torque. The vehicle information includes the current engine speed and torque, vehicle speed prediction data, and torque prediction data. By analyzing the data of the above types of information, and reasonably limiting engine torque, the vehicle's fuel efficiency can be improved.

The application provides a waterproof air filter and a vehicle, which comprises a filter main body, an air inlet pipe and an air outlet pipe. An upward and outward bending structure is formed at the connection between the air inlet section and the drainage section of the air inlet pipe, so that water is prevented from flowing directly into the shell under the action of gravity after entering the air inlet pipe. The bending structure not only increases the resistance of water flowing into the air inlet pipe, but also temporarily stores water, reduces the probability of water entering the filter element, avoids the problem of insufficient air intake caused by the blockage of the filter element due to water absorption, and ensures that the engine can always obtain sufficient air supply, maintains normal power output and fuel efficiency.

An air inflation hub bearing assembly comprises a rotary sealing assembly and a hub bearing connected therewith, the hub bearing comprising a hub outer ring and a hub flange, the rotary sealing assembly comprising a static sealing ring cover and a dynamic sealing ring cover, the static sealing ring cover being provided with an air inlet channel, the dynamic sealing ring cover being provided with an air outlet channel, and a sealing assembly being arranged between the static sealing ring cover and the dynamic sealing ring cover, the sealing assembly comprising a static sealing ring fixed to the static sealing ring cover and a dynamic sealing ring fixed to the dynamic sealing ring cover, the static sealing ring and the dynamic sealing ring abutting against each other through interference contact to achieve dynamic sealing. The present application has the beneficial effect that through the interference contact of the static sealing ring and the dynamic sealing ring, dynamic sealing is achieved when the hub bearing rotates, effectively solving the problem that the traditional air inflation hub bearing is prone to air leakage during high-speed or long-term use, thereby improving air tightness, ensuring stable tire air pressure, and improving vehicle safety, fuel efficiency and equipment life.

The application provides a series-parallel mode judgment method and system based on a P1+P3 hybrid architecture and a vehicle, and relates to the technical field of hybrid electric vehicle control. The method establishes a two-stage judgment architecture with priority to capability demand and second priority to fuel efficiency demand. First, the series-parallel capability demand is judged based on real-time operating parameters to ensure system safety and power performance. Then, when there is no forced capability demand, the series-parallel fuel efficiency demand is judged to optimize fuel consumption. Finally, the target mode is determined according to the judgment result and the switching is controlled. Through the hierarchical, comprehensive and adaptive judgment logic, the method systematically solves the conflict between safety and fuel efficiency in mode decision, realizes precise, rapid and smooth switching of the series-parallel mode, and effectively improves the vehicle power performance, fuel efficiency and driving experience.

To prevent a situation of insufficient oil supply to the hydraulic cylinder and a deterioration in fuel efficiency, a hydraulic drive circuit includes a hydraulic cylinder 2, configured for operation with oil supplied by a hydraulic pump 1, a reversing valve 10 located in an oil channel 50A, 50B between the hydraulic pump 1 and the hydraulic cylinder 2, a load check valve 20 located in the oil channel between the reversing valve 10 and the hydraulic cylinder 2 in the oil channel 50B and configured to allow oil passage in only one direction from the reversing valve 10 to the hydraulic cylinder 2, and a shut-off valve 30 configured to block the oil flow from the hydraulic cylinder 2.The shut-off valve 30 is connected to the hydraulic cylinder 2 via a branch oil channel 50C, which branches off from the oil channel 50B between the hydraulic cylinder 2 and the load check valve 20.

The application relates to the technical field of unmanned mine vehicle control, and discloses a mine open area vehicle avoidance control method. The method realizes real-time sensing of dynamic obstacles and terrain through the fusion of high-precision radar and visual sensors, significantly improves the safety and efficiency of the mine automatic driving system, uses a graph neural network to predict the future motion trajectory of the obstacles, combines the unique operation rules of the mine to analyze the behavior, can effectively reduce the risk caused by the dynamic obstacles, in addition, the introduction of the reinforcement learning model enables the avoidance strategy to be dynamically adjusted, multiple factors such as safety distance, task delay, fuel efficiency and ride comfort are comprehensively considered, and optimal decisions can be made by the vehicle in a complex environment in time, so that the intelligent level of the avoidance control is improved, the limitations of traditional fixed route planning are reduced, the overall efficiency of mine transportation is optimized, and the risk of accidents is reduced.

Vehicle control device (50) performing a driving control that controls the driving of its own vehicle (10) in order to enable the own vehicle to follow a vehicle driving ahead of it, with an environmental prediction unit (33) that predicts whether a change in impairment has occurred in an environment around the own vehicle, wherein the change in impairment is likely to have an adverse effect on the fuel economy of the own vehicle, and an acceleration control unit (32) for performing a prediction control which makes it possible to limit the acceleration of the vehicle itself when the environment prediction unit predicts that the impairment change in the environment has occurred, wherein The driving control system is configured to control the acceleration and deceleration of the vehicle so that the vehicle follows the vehicle in front, and the driving control system is configured to control the deceleration of the vehicle at a first deceleration rate adjustable by the driving control system. The acceleration control unit is configured to predict that the impairment change has occurred in the environment around the vehicle when the environment prediction unit predicts that the impairment change is a deceleration requirement change in the environment, where the deceleration requirement change is necessary to decelerate the vehicle, and Executing a deceleration control as a predictive control that decelerates the own vehicle at a predetermined second deceleration rate when the environmental prediction unit predicts that the impairment change in the environment has occurred, where the second deceleration rate is lower than the first deceleration rate. The environmental prediction unit, based on a first index for the fuel efficiency of the vehicle and a second index for the vehicle's performance relative to the vehicle in front, predicts whether the change in environmental conditions has occurred. The first index for the fuel efficiency of one's own vehicle contains a predicted value for braking energy or a predicted value for fuel efficiency, The predicted value of the braking energy represents a value of the braking energy whose generation is predicted based on a deceleration of the vehicle by the driving control system during a first predetermined time period from a current time to a predetermined first future time, and the second index for the vehicle's subsequent performance represents a deviation amount of a position of the vehicle or a deviation amount of a speed of the vehicle or the sum of deviations in the position of the vehicle from ideal driving, based on the vehicle control system, during a second predetermined time period from the current time to a predetermined second future time or The sum of deviations in the speed of the vehicle from ideal driving, based on the driving control, during the second predetermined time period from the current time to the predetermined second future time.

The application provides an energy management optimization method and device, equipment and storage medium, relates to the technical field of hybrid vehicles, and the method comprises the following steps: when a hybrid vehicle is not started in navigation, it is determined that the owner is oil preference, a cloud server is triggered to determine a target travel route from historical repeated travel routes according to the current travel position and the current travel time of the hybrid vehicle, the oil saving amount corresponding to the historical repeated travel route is greater than the sum of the oil saving amounts of single routes obtained by splitting the historical repeated travel route into separate travel routes; the cloud server performs predicted energy management planning on the hybrid vehicle according to the target travel route, obtains a target battery power required by the target travel route, and sends the target battery power to the hybrid vehicle; and the hybrid vehicle performs a predicted energy management function according to the target battery power. The application can better exert the energy-saving potential of the powertrain of the hybrid vehicle and improve fuel efficiency.

One variation of a system includes a trailer motor configured to install on a trailer and output torque to and regeneratively brake a driven axle; a battery configured to supply electrical energy to the trailer motor receive electrical energy from the trailer motor during regenerative braking; an external communication adapter configured to output signals representing operational data of a tow vehicle pulling the trailer; and a controller. The controller is configured to: estimate an efficiency metric of the tow vehicle and the trailer; store these operational data in a set of objects correlating motor torque outputs and engine speeds with peak efficiencies; calculate a motor torque output for the trailer motor predicted to reduce a difference between the efficiency metric and a peak efficiency of the tow vehicle and the trailer; and trigger the trailer motor to output the motor torque output.

Provided is a pneumatic tire with which the same driving safety as prior arts can be ensured and an improvement in fuel efficiency performance and durability performance is achieved. In this pneumatic tire, the tire radial direction outside end section of a chafer is disposed on the tire surface part, the loss tangent tan δ70° C.−SW of a side wall, the loss tangent tan δ70° C.−C of the chafer, complex elastic modulus E*70° C.−SW of the side wall, and the complex elastic modulus E*70° C.−C of the chafer under the condition of 70° C., an elongation of 1%, and a frequency of 10 Hz, and the loss tangent tan δ150° C.−SW of the side wall, and the loss tangent tan δ150° C.−C of the chafer measured under the condition of 150° C., an elongation of 1%, a frequency of 10 Hz satisfy the following expression. tan δ70° C.−SW+tan δ70° C.−C≤0.25|tan δ70° C.−SW−tan δ70° C.−C|≤0.07 E*70° C.−C−E*70° C.−SW≤6.5 MPa tan δ150° C.−SW+tan δ150° C.−C≤0.20.

The goal is to improve the fuel consumption rate (hereinafter referred to as "fuel efficiency") of in-line hybrid vehicles and reduce vehicle operating costs. [Solution] The series hybrid system 100 includes an engine 101, a generator 102 connected to it, a battery 103 for charging the generator, and a motor 104 driven by the battery 103. A transmission 105 is provided on the power transmission path connecting the engine 101 and the generator 102. A control unit consisting of an ECU 106 and an actuator 107 controls the engine 101 and the transmission 105 so that the rotational speed of the engine 101 is maintained within a predetermined range and the power generation efficiency of the generator 102 is increased.

A battery information guide device and a method therefor include a display and at least one processor electrically connected to the display. The at least one processor is configured to display information related to a first distance to empty (DTE) on the display based on official fuel efficiency and a state of charge (SOC), receives information related to a speed limit on a road, when the at least one processor concludes that a vehicle enters the road, displays information related to a second DTE expected when the vehicle travels at the speed limit on the display, and displays information related to a third DTE determined based on an instantaneous vehicle speed of the vehicle, when a vehicle speed of the vehicle is greater than the speed limit.

A continuously variable transmission for a pure electric vehicle, comprising a housing, an input shaft and an output shaft, the housing is provided with a transmission cavity, the input shaft and the output shaft respectively extend into the transmission cavity. The transmission cavity is provided with a transmission gear shift mechanism, the transmission gear shift mechanism comprises a first transmission shaft and a second transmission shaft. The first transmission shaft is provided with a first transition gear and a transmission gear. The second transmission shaft is provided with a second transition gear and a transmission bevel gear. The first transition gear and the second transition gear are in meshing connection. The input shaft is provided with an input gear, the input gear is in meshing connection with the transmission gear. The output shaft is provided with an output bevel gear, the output bevel gear side surface is in abutment with the transmission bevel gear side surface. Compared with the prior art, the application has the following beneficial effects: continuous stepless speed change can be realized, the output torque and speed can be freely adjusted according to the needs, gear shifting jerk is avoided, and the driving comfort and fuel efficiency of the vehicle are improved.

To provide a tire that can improve the overall performance of fuel efficiency and durability. [Solution] A tire comprising a belt layer and a sponge member on the radially inner side of the tread portion, wherein the belt layer has a steel cord consisting of 1 to 4 filaments and a topping rubber covering the steel cord, the topping rubber is made of a rubber composition containing rubber components, and the density D of the sponge member is 20 kg / m³ 3 The cord diameter of the steel cord is less than R (mm), and the maximum load capacity of the tire is W. L (kg) M = R / W L ×10 4 If defined as such, a tire where M is greater than 2.5 and D / M is less than 7.0.

A system and method for vehicle driver fuel efficiency determination and feedback, are provided. The system may include a device fitted to a vehicle to obtain measurement data during trips of the vehicle. The system may include a server and modelling system for postprocessing of the measurement data. The method may include generating a model that determines contributing factors to a difference between an average fuel efficiency across a fleet of vehicles, and a predicted fuel efficiency for a specific trip of a vehicle. The model may be trained such that the predicted fuel efficiency approximates the actual fuel efficiency. The predicted fuel efficiency and the contributing factors may be output from the modelling system. The system may include a feedback system to provide feedback to a driver or a fleet operator to improve fuel efficiency.

The application discloses a kind of coal-fired power plant boiler fuel efficiency calculation method using SNCR denitration technology, the boiler fuel efficiency of the present application is obtained by respectively calculating the exhaust heat loss rate after SNCR operation, gas incomplete combustion heat loss rate, solid incomplete combustion heat loss rate, boiler heat loss rate, ash physical sensible heat loss rate, SNCR reaction heat loss rate, boiler other heat loss rate, external heat and the percentage of low calorific value of fuel;Wherein, SNCR reaction heat loss rate includes urea melting phase change absorption heat, liquid water in urea solution is heated and vaporized absorption heat, and the heat loss rate caused by heat release caused by urea chemical reaction.This application first proposes the method that the urea solution sprayed into the furnace is accurately divided to unit mass fuel by calculating the difference of air preheater outlet flue gas humidity of SNCR boiler when operating and stopping, solves the problem that the quality of fuel into the furnace and the accurate measurement of urea solution into the furnace are difficult.

This invention relates to the field of tire manufacturing technology, and more particularly to a low-deformation rubber composition for tire buffer layers based on bimodal SSBR, a mixing method, and a tire. Based on 100 parts by weight of the rubber components, it includes natural rubber, first and second non-oil-extended polystyrene-butadiene rubbers (BF2055H / L), polybutadiene rubber, and additives such as highly dispersed silica, carbon black, silane coupling agents, and α-methylstyrene resin. BF2055H / L has a 20% styrene content, 55% vinyl content, and a bimodal molecular weight distribution, synergistically improving the dynamic modulus distribution of the rubber and the uniformity of filler dispersion. The mixing process is optimized to achieve efficient reaction and uniform distribution of SiO2 with the rubber. Experiments have shown that, without sacrificing hardness and handling performance, this composition can achieve tanδ (60℃) ≤0.071, M300 controlled at 6.8-7.2 MPa, and DIN abrasion ≤99 mm. 3 Compression permanent deformation ≤30%, flexural life >2.0×10 5 Its overall performance is significantly better than existing oil-filled buffer layer formulations, and it has excellent fuel efficiency, comfort, and process adaptability.

An adjustable bypass ratio low-bypass turbofan engine comprises a fan, an outer bypass duct, an axial compressor, a combustion chamber, a turbine, and an exhaust nozzle. The fan has three stages. The first two stages have blades of equal length, with an airflow ratio to the inner bypass duct not exceeding 1.3. The third stage blades are longer than the first two stages. Adjustable guide vanes are also present, either behind the second-stage blades or in front of or behind the portion of the third-stage blades that are longer than the first two stages. During startup, by opening or closing the adjustable guide vanes, the flow area of ​​the third-stage fan blades is changed, or the airflow of the outer bypass duct is adjusted. This allows the engine to operate at a maximum bypass ratio of 0.3 or higher but not exceeding 1.0 during subsonic cruise, and at a minimum bypass ratio of 0.3 or less during supersonic flight. This improves the engine's thrust and fuel efficiency at subsonic and supersonic speeds, but without requiring a core drive fan system or a three-bypass duct.

The present invention provides a fuel oil composition and a method for producing the same, the fuel oil composition containing a fatty acid alkyl ester and a decomposed gas oil fraction having specific properties in specific amounts based on the total amount of the composition, such that by containing the fatty acid alkyl ester and the decomposed gas oil fraction in prescribed amounts, the fuel oil composition exhibits excellent fuel economy performance and combustion performance, environmental performance for reducing nitrogen oxide emissions, as well as excellent storage stability.

A heat pump system for a hybrid vehicle is capable of engine preheating and cabin heating even at low outside air temperatures, improves fuel efficiency by minimizing engine operation, and improves system operating efficiency by preventing pressure drop of circulating refrigerant. The heat pump system includes a first cooling device, a second cooling device, a cabin heating device, a control valve, a first connection line, a second connection line, and an air conditioner unit, the second line and the second connection line are connected to a condenser to selectively circulate a first cooling liquid and a second cooling liquid, respectively.

The application provides a fuel efficiency improver and a preparation method thereof, and relates to the field of fuel additives, and comprises the following raw materials in proportion by weight: isopropyl alcohol 7000-7600 parts, butyl ether 2100-2500 parts, isooctanol 180-580 parts, ferrocene 2-10 parts, glyceride 2-6 parts, sodium sulfate 1-3 parts, cationic active agent 2-6 parts and anionic active agent 2-6 parts. The fuel efficiency improver not only has the effects of cleaning carbon deposition and reducing exhaust pollution, but also can change the tension of fuel, control the flash point of fuel, make fuel burn fully, improve the power of fuel and greatly improve the oil saving rate.

Automotive designers are largely shifting from internal combustion engines to batteries and electric motors. Hybrid electric vehicles (HEVs), which combine an internal combustion engine and an electric motor, represent a step towards electrification and higher system fuel efficiency while maintaining the expected driving range, until the infrastructure supporting full electrification is developed. To achieve higher system fuel efficiency, HEVs can utilize combustion modes that offer higher efficiency than spark ignition (SI) operation. One problem with these combustion modes is that they cannot be used as widely as SI operation, and the transitions between modes are slow and cumbersome. By incorporating a multi-combustion-mode engine in a hybrid electric vehicle and coordinating smooth mode switching with an electric motor, highly fuel-efficient alternative combustion modes can be utilized while simultaneously providing the smooth operation expected by the vehicle's occupants.