199results about How to "Improve fuel saving effect" patented technology

A lubricating oil composition includes lubricating oil base oil, an organic molybdenum compound (A), zinc dialkyl dithiophosphate (B), at least one compound (C) selected from calcium sulfonate, calcium phenate, and magnesium sulfonate and having a base number of 230 mgKOH / g or more, and an ashless dispersant containing boron or a mixture of an ashless dispersant containing boron and an ashless dispersant containing no boron (D) in predetermined ratios, in which: a mass ratio (P / Mo) of the P content to the Mo content in the composition is 1.5 or more; a mass ratio (CaMg / Mo) of a total content of the Ca and Mg derived from the component (C) to the Mo content in the composition is 3 or more; and a mass ratio (B / N) between B and N derived from the component (D) in the composition is 0.5 or more. The lubricating oil composition of the present invention has a high static friction coefficient of wet clutch, has excellent frictional property in a power transmission mechanism, has excellent fuel saving property, and is suitably used for power transmission lubricating oil and engine lubricating oil.

A control device is provided for a vehicular drive apparatus, having a differential mechanism and a transmission, for miniaturizing the differential mechanism and / or providing improved fuel economy while preventing a busy shift. With the provision of a switching clutch C0 or a switching brake B0, a transmitting mechanism 10 can be placed in a continuously variable shifting state and a step-variable shifting state whereby the vehicular drive apparatus has combined advantages including a fuel saving effect of the transmission, enabled to electrically change a gear ratio, and a high transmitting efficiency of a gear type transmitting device enabled to mechanically transmit drive power. With a total speed ratio γT set to a lower vehicle speed gear ratio than that for a given running state, if a required drive force or a drive force source brake is unavailable or if load torque of an electric motor is deviated from an allowable range, switching control mean 50 switches a differential portion 11 to the step-variable shifting state for thereby obtaining larger drive force or drive force source brake than those for the given running state without causing load torque of the electric motor from deviating from the allowable range while preventing the busy shift.

The present invention provides a lubricating oil composition improved in fuel-saving properties by reducing lubrication resistance within the same viscosity grade oils. The lubricating oil composition comprises a lubricating base oil and a viscosity index improver with a PSSI of 30 or lower blended such that the viscosity index of the composition is 160 or greater and the 100° C. kinematic viscosity loss after shearing is 15 percent or less.

The present invention relates to an engine-hydraulic series-parallel connection type rear drive hybrid vehicle. It is composed of main power mechanism, main auxiliary power mechanism, secondary auxiliary power mechanism and double-power rear drive axle. Said main power mechanism is formed from engine and gear-box, its main auxiliary power mechanism is composed of hydraulic control valve group, hydraulic energy storage, hydraulic pump / motor and hydraulic fuel tank, its secondary auxiliary power mechanism is formed from engine power output mechanism, secondary electromagnetic clutch, hydraulic pump, secondary hydraulic fuel tank and secondary hydraulic control valve group. Besides, said invention also provides their connection mode and working principle of said engine-hydraulic series-parallel connection type rear drive hybrid vehicle.

The invention discloses a random control strategy of cylinder deactivation of part of cylinders of a multi-cylinder engine. One or a plurality of cylinders are selected as working cylinders under the working condition of partial load; the combination of the cylinder as the working cylinder is randomly determined by a control system which carries out monitoring to the vibration condition of the engine and a chassis and randomly determines another different cylinder combination as the working cylinder before the engine and the chassis of an automobile occur resonance. As the cylinder deactivation of the cylinders is irregular in different working cycle, the fluctuation of an output torque is aperiodic and can not excite periodic forced vibration of the system, therefore, the amplitude of vibration of the system is controlled, the number of the cylinder deactivation can be increased and is not limited by the number of the cylinder, even only one cylinder works, thus expanding the application range of the technology of cylinder deactivation and having more obvious oil-saving effect. The control strategy can be realized by a software method under the condition that the cut off of air and oil of each cylinder can be independently carried out.

The invention discloses a control method of an engine electronic water pump. The control method includes the steps that an actual water temperature of an engine, a load of the engine and rotating speed data are collected; according to the actual water temperature of a water outlet of the engine, operation working conditions of the engine include a warming stage, a heating stage and a water temperature protecting stage; whether a working state of the engine is at any stage of the above stages or not is sequentially judged; when the working state of the engine is at the warming stage, the electronic water pump reduces the supplying of cooling liquid, and the engine rapidly warms up; when the working state of the engine is at the heating stage, the electronic water pump supplies cooling liquid at the lowest demand, and energy consumption of the electronic water pump is reduced; and when the working state of the engine is at the water temperature protecting stage, the electronic water pumpsupplies cooling liquid at full power. The operation working conditions of the engine are divided into multiple stages, a cooling system performs supplying according to demands at each stage, the lowest power loss and fuel oil consumption are realized, and the requirements for rapid heating and rapid cooling are met.

The invention belongs to the field of petroleum product additives, and particularly relates to an ethanol gasoline composite additive and a preparation method thereof. The composite additive is prepared from co-solvent, combustion improver, corrosion inhibitor, vapor pressure inhibitor, detergent dispersant and surfactant serving as raw materials. The composite additive added into ethanol gasoline totally can replace gasoline, and is energy-saving, clean and environmentally-friendly. The ethanol gasoline prepared by using the additive can be mixed and used with the gasoline for vehicles in different ratios; the synthesized gasoline has no poor corrosion, has good dynamic property, oxidation resistance, explosion resistance and good oil-saving effect, prolongs the service life of an engine, obviously reduces harmful gas emission in automobile exhaust, is extremely favorable for protecting the environment and saving the energy, and has good economic benefit and social benefit; and because of the surfactant, the additive improves the storage and transportation stability of the ethanol gasoline, and does not produce phase separation or sediment after long-time storage.

A technology for manufacturing the Mg-alloy wheel hub includes such steps as preparing Mg alloy by additional use of RE element (0.5-2.0 wt.%) as part of its raw materials, smelting while adding the Mg-alloy coveriong agent prepared from MgCl2, CaF2, KCl, BaCl2 and MgO and the refining agent prepared from NaCl and KCl, preparing mould, spraying on inner surface of mould, casting, heat treating and surface treating. Its advantages are high strength, precision and surface finishing quality, high vibration damping effect, and saving oil.

The invention provides exposed gear grease, comprising the following components of 50-90 parts by weight of a base oil, 4-10 parts by weight of thickening agent, 1-3 parts by weight of an antioxidant, 1-5 parts by weight of an anti-wear reagent at extreme pressure, 1-5 parts by weight of a solid antiwear agent and 10-20 parts by weight of an adhesive agent. Besides, the invention also provides a preparation of the exposed gear grease. The exposed gear grease provided by the invention has the advantages of simple composition and relatively low cost. Besides, the exposed gear grease has relatively strong adhesive capacity, excellent lubricity, good oil-saving property and relatively strong extreme pressure antiwear property. Furthermore, the exposed gear grease can retain grease thickness in a relatively large temperature range, thereby facilitating usages for an operating staff.

The invention relates to a car cruise control method and system and belongs to the technical field of car cruise control. According to the car cruise control method and system, when a car gets into acruising state, and the road information of the position at the set distance ahead of the car is detected; the road environment information ahead of the car is predicted; when the front road is an upslope, the cruising speed of the car is controlled to be increased in advance; and when the front road is a down slope, the cruising speed of the car is controlled to be reduced. The front road information is predicted in advance, the car speed control strategy is optimized, an accelerating-sliding manner is adopted, the car automatically adjusts the running speed of the car in advance according tothe road condition when climbing the slope and going down the slope, the engine work state is adjusted to an economical area, and therefore the aim of saving oil is achieved.

The invention relates to an energy-saving control method and system for revolving speed of an engine. The method comprises the following steps: acquiring required running speed and load required power; and setting a revolving speed value of the engine to be minimum revolving speed on the premise of meeting the required running speed and the load required power. By the energy-saving control method and system for the revolving speed of the engine, the engine runs at economical revolving speed as much as possible on the promise of meeting a vehicle speed requirement and a power requirement, so that the purpose of saving fuel is achieved. Meanwhile, when the revolving speed set value of the engine is changed, a hydraulic system is adjusted in real time so as to guarantee stable running speed and link before and after change of the revolving speed, and stability and driving comfort are good. A power requirement serves as a first priority, and the revolving speed of the engine can be relatively high when high speed or large torque is required. Therefore, a vehicle can meet optional speed requirements. But the required speed of the vehicle is not maximum in most cases, and the advantage of fuel saving can also be played fully.

The invention belongs to the field of design and research of passenger vehicle power systems, and particularly relates to a method for controlling the fuel consumption of a passenger vehicle. The method comprises the following steps: determining the speed ratio constraint condition of a gearbox; setting the initial speed ratio of the gearbox; determining a uniform speed which is frequently used of the passenger vehicle in a normal driving process; calculating the rotating speed and the torque of an engine under a common working condition; judging whether working condition points are positioned in a fuel consumption economical area or not, if not, drawing a equipower line on a fuel consumption contour map of the engine, translating the working condition points along the equipower line till each working condition point enters the fuel consumption economical area, reading the rotating speed and the torque of each translated working condition point on the fuel consumption contour map of the engine; calculating the optimized speed ratio of the gearbox; comparing the speed ratio of the gearbox with the speed ratio constraint condition, wherein if the constraint condition is satisfied, the fuel consumption is optimal. In combination with an NEDC (New European Driving Cycle), a working condition having greatest contribution to the fuel consumption is found in a vehicle driving process, and the fuel consumption under the working condition is optimized, so that the fuel saving performance of the whole vehicle is enhanced. On a perfect theoretical basis, the fuel consumption of the vehicle is optimized, so that the power performance of the whole vehicle is not influenced in an optimization process.

A particular gear oil composition is provided that contains (A) a base oil, (B) an ethylene-α-olefin copolymer, (C) a sulfur-containing compound, (D) an organomolybdenum compound and (E) a phosphorus-containing compound, which is excellent in extreme pressure properties, shear stability and wear resistance, and is excellent in fuel saving properties.

The invention discloses a hybrid electrical vehicle energy-saving control method based on GPS (global position system) geographic information. The method comprises the following steps: in the running process of a hybrid electrical vehicle, obtaining current geographic information in real time through a vehicle-mounted navigation system, identifying the road condition in front of the vehicle, obtaining vehicle running state information on an unknown road, and controlling a power battery to discharge whether the current road condition is an upward slope or a flat road if the soc value of the power battery is greater than the lower limit value socl corresponding to the maximum brake energy E[lambda] capable of being recovered by a downward slope in front of the vehicle in combination with the information of the current power battery. According to the method, the reasonable space is provided for recovering brake energy, so that insufficient brake energy recovery caused by insufficient storage space of the power battery is avoided, the regenerative brake energy recovery efficiency of the vehicle is further improved, and the oil saving performance of the whole vehicle is improved.

A lubricating oil composition includes lubricating oil base oil, an organic molybdenum compound (A), zinc dialkyl dithiophosphate (B), at least one compound (C) selected from calcium sulfonate, calcium phenate, and magnesium sulfonate and having a base number of 230 mgKOH / g or more, and an ashless dispersant containing boron or a mixture of an ashless dispersant containing boron and an ashless dispersant containing no boron (D) in predetermined ratios, in which: a mass ratio (P / Mo) of the P content to the Mo content in the composition is 1.5 or more; a mass ratio (CaMg / Mo) of a total content of the Ca and Mg derived from the component (C) to the Mo content in the composition is 3 or more; and a mass ratio (B / N) between B and N derived from the component (D) in the composition is 0.5 or more. The lubricating oil composition of the present invention has a high static friction coefficient of wet clutch, has excellent frictional property in a power transmission mechanism, has excellent fuel saving property, and is suitably used for power transmission lubricating oil and engine lubricating oil.

The cooking pan in which one side of an outer circumferential face of a main body is combined with a handle through a bolt fastening has such a construction that a temperature display member is equipped with an upper face of a coupling end part combined with a guide protrusion of the main body, wherein the temperature display member is provided with a sense rod formed in one body from a lower portion of a display, the sense rod being closely inserted into a rod insertion hole of the coupling protrusion projected in one body from the main body, thereby displaying temperature transferred from the coupling protrusion so as to provide an easy cooking and the best taste of food and to prevent unnecessary consumption of fuel in cooking.

Embodiments of the invention provide an engine torque control method and device. The engine torque control method comprises the steps that a current driving condition type of a vehicle is first obtained through analysis according to operating parameters of the vehicle, and then a corresponding relationship between the various preset driving condition types and torque control strategies is used forgetting the torque control strategy corresponding to the current driving condition type, the required torque of an engine is calculated, and then the torque of the engine is adjusted. The adaptability of the vehicle under complex and changing driving conditions is improved, the fuel saving effect of the vehicle is improved. further, when the vehicle operating state meets the preset conditions andenters the throttle fixing mode, the required torque of the engine can be kept at a fixed value to ensure that the engine torque remains stable, and the fuel saving effect of the vehicle can be further improved; and through the cooperation of an overtaking mode and a torque limiting mode, the economy and power of the vehicle are comprehensively guaranteed.

The invention provides a variable-speed transmission system special for a hybrid power automobile. The system comprises an engine (1), a first motor (3), a second motor (4), a second motor transmission assembly (5), a first clutch (6), a double-clutch assembly (7), a first gear gear set (8), a second gear gear set (9), a third gear gear set (10), a synchronizer (11), a first input shaft (13) and asecond input shaft (14). The engine (1) is connected with the first clutch (6). The first clutch (6) is connected with the first motor (3) and the first input shaft (13). One end of the double-clutchassembly (7) is connected with the first input shaft (13), and the other end of the double-clutch assembly (7) is connected with the second input shaft (14). The second motor (4) is connected with the third gear gear set (10). The three clutches and three gears are configured, the requirement for a power source is lowered, meanwhile, multiple working manners can be achieved, and efficient workingis achieved.

The invention relates to a start and stop control method for an extended range type electric motor car engine. The start and stop control method is characterized in that a power cell and a supercapacitor dual voltage platform are mounted on a new energy source extended range type electric motor coach, wherein a supercapacitor is used for storing braking energy, and the power cell and an APU (Auxiliary Power Unit) system of the engine provide driving energy; starting signals and wakeup signals of the engine are accessed into an electric wiring, and are sent to an ECU (Electronic Control Unit) by a VMS (Velocity-Measuring System); a supercapacitor management system CAN (Controller Area Network) bus and the VMS are in a same path, and a supercapacitor voltage value is acquired by the VMS in real time in a process of vehicle driving so as to judge recycled braking energy and monitor the braking energy stored in the vehicle-mounted supercapacitor in real time; and when voltage in the vehicle-mounted supercapacitor is larger than the voltage value in a normal shutdown state, the engine is in an idle shutdown state, and at the same time, the energy required for the vehicle driving is obtained from the braking energy stored in the supercapacitor, and a vehicle is driven by means of the energy of the vehicular supercapacitor.

The invention discloses a uniformly-scattered oil-saving type coupler oiling device which comprises a workbench; an oil tank is placed below the workbench, the bottom of the inner wall of the oil tank is provided with a filtering mesh hood, four corners of the bottom face of the workbench are all provided with supporting legs in a welded manner, and the four corners of the upper surface of the workbench are provided with supporting pillars in a welded manner. According to the uniformly-scattered oil-saving type coupler oiling device, a drive motor drives a rotary table to rotate and thus drives a coupler to rotate, therefore lubricating oil sprayed on the surface of the coupler by a spray pipe is scattered uniformly under the effects of centrifugal force and gravity, and oiling performed on the coupler is uniform; and meanwhile, oiling efficiency is high, the rotary table is provided with first through holes and second through holes, the lubricating oil of the coupler on the rotary table is discharged into an oil collection slot conveniently, the dropped lubricating oil is collected through the oil collection slot, the lubricating oil is guided into the oil tank through an oil guiding pipe for reuse, utilization of the lubricating oil is thorough, and the oil-saving effect is good.

The invention relates to the technical field of vehicle hybrid power and discloses a four-speed-gear single-motor hybrid power assembly. The assembly includes an engine, a motor, a coupling planet row, a speed variator and a second braking clutch; the engine and a power generator transmits power to the speed variator through the coupling planet row; the speed variator includes a combined planet row, a first clutch, a second clutch, a first braking clutch and a one-way clutch; through connection or separation of the arranged second braking clutch, pure electric driving or hybrid driving of theassembly is achieved, and through connection or separation of different combinations of the arranged first clutch, second clutch, first braking clutch and one-way clutch, power output of different speed gears is achieved, and different magnitudes of power is transmitted through the combined planet row. The problems are solved that only double motors in the prior art can achieve pure electric driving, motors are usually overloaded during work in order to meet the demands for torque and rotation speed during running of vehicles, the consumption of electric power is high, and the petrol saving performance is poor.

The invention provides a transmission system of a gearbox of a hybrid electric vehicle, belongs to the technical field of vehicles, and aims to solve the problem that all shifts of the gearbox can operate in a hybrid moving mode, so that the dynamic performance is improved. The transmission system of the gearbox of the hybrid electric vehicle comprises an engine, an electric motor, a coupling clutch, an input shaft and an output shaft, wherein the output shaft is in transmission connection with the input shaft through a shift gear structure corresponding to a vehicle shift; the electric motoris in transmission connection with the input shaft through the coupling clutch; and the engine is in transmission connection with the electric motor through the coupling clutch. The transmission system disclosed by the invention has the following advantages that, all the shifts of the gearbox can run the hybrid moving mode, so that the dynamic performance is good, and oil saving performance is good; in the transmission system, the engine can drive the electric motor to charge an accumulator; and, the transmission system is compact, light in weight and small in size, and complete vehicle carrying is facilitated.

The invention provides a composite material suitable for the preparation of a fuel economizer. The composite material is characterized in that the composite material comprises the following components, by weight, 30-60 parts of a polymer material, 40-80 parts of tourmalinite, 10-40 parts of rare earth, 0.01-15 parts of nanometer titanium dioxide and 0.001-10 parts of nanometer platinum, wherein the polymer material is PC, PE, ABS, PS or PMMA. A spherical porous fuel economizer prepared by mixing the components and carrying out slurry injection molding through an injection molding method is also provided. The fuel economizer has the advantages of low cost, good fuel economizing effect, engine power improvement, no generation of secondary pollution, reduction of the engine sound, reduction of carbon deposition in an oil way, stable effect during use, and realization of recycling.

A lubricating oil composition for a continuously variable transmission has low viscosity to exhibit fuel savings, higher metal-to-metal friction coefficient to ensure high power transmission, wet clutch friction characteristics and anti-shudder properties required for transmissions, and low traction coefficient to achieve fuel savings. The composition contains a base oil adjusted so the product (EC×V40) of the mass % (ECmass %) of saturated cyclic component based on the total base oil and the 40° C. kinematic viscosity (V40 mm2 / s) is 500 or less and the 100° C. kinematic viscosity is 3.6 to 4.1 mm2 / s, (B) a phosphorus compound, (C) a calcium salicylate and / or a calcium sulfonate, (D) a boron-modified ashless dispersant in an amount of 0.001 to 0.008 mass % as boron, and (E) a friction modifier, each in a specific amount, the lubricating oil composition having a 100° C. kinematic viscosity of 5.2 to 5.6 mm2 / s and a viscosity index of 165 or greater.

Provided is a lubricant oil composition for an internal combustion engine which is characterized by including a base oil having a viscosity index of 125 or higher and a Noack evaporation amount (250° C.×1 h) of 15% by mass or less, and, based on a total amount of the composition, from 0.1 to 10% by mass of (A) a C2 to C20 olefin polymer having a mass average molecular weight of 500 or more and 10,000 or less and / or (B) a polymeric compound having a mass average molecular weight of 10,000 or more and less than 100,000, wherein a content of (C) a polymeric compound having a mass average molecular weight of 100,000 or more is less than 1.0% by mass. The lubricant oil composition can, despite of its low viscosity, reduce noise during running, prevent fatigue damage such as gear pitting, reduce the consumption of the oil, and provide excellent fuel saving performance.

The invention discloses a hybrid vehicle energy recovery system, the hybrid vehicle energy recovery system comprises a master control module, a motor control module, a battery management system, a brake module, an information receiving module and a brake pedal stroke sensor; the invention further discloses a hybrid vehicle energy recovery method; the arranged brake pedal stroke sensor can monitorthe whole state of a brake pedal, particularly, an idle stroke section can be used to accurately pre-judge the sliding state of a vehicle actually driven by a user, the corresponding recovery power isoptimized, the fuel saving rate of the actual driving condition of the user is improved, the temperature rise of a battery under the high-speed sliding working condition is effectively reduced, the deviation of different feelings on the pedal at the same power, caused by manufacturing or assembling error, is further eliminated; by reducing the energy recovery power in the high-speed sliding process, the calorific value of the battery in the charging process of the high-frequency working condition is reduced, so that the speed of the temperature rise of the battery is reduced, the energy recovery power is increased when a driver intends to brake, and the better oil saving effect is guaranteed.

The invention relates to the technical field of automobile control methods, in particular to an oil -saving system based on a road scene and a driving intention and a control method. The system comprises a road scene recognition module, a fuel saving condition judgment module, a speed control method acquisition module, a driving intention recognition module, a power demand recognition module and a control module. The speed control method of the vehicle is obtained according to the road condition and the front vehicle condition, the driving intention of a vehicle driver is recognized, if the driving intention belongs to the set intention, the power demand of the vehicle is obtained in combination with the speed control method and the driving intention, and the power assembly is controlled according to the power demand to enable the engine to operate in the economic area. The control method is extremely simple, the power assembly of the vehicle is controlled in combination with the road scene and the driving intention, and the oil saving effect of the power assembly of the vehicle is improved.

The invention discloses a hybrid power transmission system with a dual gear structure. The system at least comprises an engine and a motor, the engine is fixedly connected to one end of a cut-off clutch, and the other end of the cut-off clutch is fixedly connected with the motor and an input shaft assembly of a gearbox; the system further comprises a gear mechanism cooperatively connected to the input shaft assembly and an output shaft assembly for transmitting power through the gear mechanism, the gear mechanism at least comprises a dual gear fixedly arranged on a first input shaft, and the dual gear is in transmission connection with an even-numbered driven gear set arranged on output shaft; the gear mechanism further includes an odd-numbered driving gear set fixedly arranged on a secondinput shaft, and the odd-numbered driving gear set is in transmission connection with an odd-numbered driven gear set disposed on the output shaft. The system mainly has the advantages that set gearsare reduced, the system structure is simplified, all the transmission gears can run in a hybrid power mode, and the fuel saving performance is good; at the same time, the engine can charge a storagebattery during running and idling.

A magnetic fuel-saving rubber composite material relates to a rubber material and comprises components of butadiene-acrylonitrile rubber, a chloroprene rubber adhesive, zinc white, stearic acid, an antideteriorant 4010NA, an antideteriorant RD, a coumarone, dioctyl phthalate, carbon black, a magnetic material, brimstone, a promoter M, and a promoter PZ. The magnetic fuel saving rubber composite material is prepared through the steps of plastifying, mixing, vulcanizing and the like. The magnetic fuel saving rubber composite material provided by the invention has the benefits of enabling an oil delivery pipeline to have a magnetic radiation performance, enabling fuel oil molecules to become small aggregate structures from a large aggregate structure by using a magnetic line to smash the clustering states of fuel oil molecules, and enabling the fuel oil molecules to be activated so as to change physical chemical property thereof, thereby being helpful to sufficient burning of fuel oil, improving the fuel-saving performance of an engine and also reducing contaminant emission. The magnetic fuel saving rubber composite material is in favour of energy conservation and environment protection. Therefore, the magnetic fuel-saving rubber composite material has a stronger promotion and application value. The magnetic fuel saving rubber composite material belongs to products of green environmental energy saving facilities on the aspects of rubber industry and is used on the aspect of automobile fuel saving.