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138results about How to "Obvious fuel-saving effect" patented technology

Electronic-controlled engine, energy-saving method of electronic-controlled engine, energy-saving device of electronic-controlled engine and engineering machine

The invention discloses an electronic-controlled engine, an energy-saving method of the electronic-controlled engine, an energy-saving device of the electronic-controlled engine and an engineering machine. The energy-saving method of the electronic-controlled engine comprises the steps of obtaining output power of the electronic-controlled engine according to actual operation working conditions of the engineering machine, determining the current operation mode of the electronic-controlled engine according to the output power, determining an universal characteristic curve corresponding to the current operation mode according to the current operation mode, according to the universal characteristic curve, determining the optimal rotation speed of the electronic-controlled engine, adjusting the current actual rotation speed of the electronic-controlled engine into the optimal rotation speed, and enabling the electronic-controlled engine to operate in an optimal oil consumption area corresponding to the current working condition. Therefore, the optimal oil consumption area can be correspondingly set according to loads, and the purpose of effectively reducing energy consumption of the whole engine can be achieved according to the working condition with different loads.
Owner:SANY HEAVY MACHINERY

Method for controlling EV-AT deep hybrid vehicle

The invention provides a method for controlling an electrical variable automatic transmission (EV-AT) deep hybrid vehicle. The method comprises the following steps of: performing whole vehicle controlling logic: determining a key switch signal; performing self test on each controller, giving an alarm and exiting if a failure is found in the self test, and continuously operating if the controller runs normally; determining a gear signal if a key switch is at a START position, returning if the key switch is at a P gear, displaying that drive can be performed by a liquid crystal display if the key switch is not at the P position, performing self-test on each drive system, and performing corresponding operation according to failure type A, type B or non-failure type; and performing drive control logic: judging whether the vehicle is in a pure electric drive mode or not, judging a vehicle speed if the vehicle is not in the pure electric drive mode, and performing corresponding control. Themethod can realize EV-AT-based whole vehicle control, optimizes the operating point of an engine to the best economical interval or working point of the engine through speed regulation control so as to realize excellent fuel saving ratio. By the control method, the working region of the engine can be optimized to the economical interval and the engine can run in the economical interval, so that excellent fuel-saving effect can be achieved.
Owner:BEIJING ELECTRIC VEHICLE

Energy-saving stability motion control method for networked car queue

The invention discloses an energy-saving stability motion control method for a networked car queue, and belongs to the technical field of a car driving assistance system. The method includes the stepsof first establishing a single vehicle dynamics model in the networked car queue and calculating the acceleration of each vehicle in a pulse phase and a glide phase; by establishing a car following subsystem model with the relative speed and the relative inter-vehicle distance error of a car following subsystem composed of two adjacent vehicles as state variables, determining four driving modes of the car following subsystem to obtain a host vehicle state trajectory on a [delta]v-[delta]R plane; for the pulse or glide cases of a front vehicle, obtaining host vehicle [delta]v-[delta]R state plane partition maps respectively, and determining the host vehicle acceleration of each range; and finally, synthesizing the host vehicle state plane partition maps obtained respectively for the pulseand glide cases of the front vehicle, and obtaining a switching control chart and a control law of the host vehicle to achieve energy-saving motion control of the vehicles in the networked car queue.The method in the invention has low requirements on the precision of the position control of the vehicles and has the effect of high fuel efficiency.
Owner:TSINGHUA UNIV

Mechanical transmission automatic shift system used for electromobile

The invention discloses a mechanical transmission automatic shift system used for an electromobile and belongs to the automatic shift technical field. The automatic shift system is characterized in that a clutch and a transmission are connected in series between a drive motor and a driving axle, and a clutch position sensor LHW and a control mechanism of the clutch position sensor LHW are additionally arranged on the clutch; the transmission is changed into an automated mechanical transmission (AMT), a vehicle speed sensor is close to the driving axle, and a motor ECU (electronic control unit) is connected with a mechanical automatic transmission ECU used for the electromobile; and the automatic mechanical transmission ECU is used for receiving a vehicle running state signal from each sensor and outputting a control signal of each actuator electromagnetic valve as well as various related display signals, controlling a gear-selecting mechanism, a gear-pushing mechanism, a clutch control mechanism and a motor to realize automatic shift. The automatic shift system provided by the invention has the advantages of improving the gear shift performance, improving the dynamic property and economy of a vehicle, shortening the joint time of the clutch, and prolonging the service life of the clutch, and reducing the impacting degree of the joint process, and improving the driving comfortableness.
Owner:TSINGHUA UNIV

Fuel engine servo-loading unit and optimum efficiency operation control method

The inventive fuel engine servo loading device includes a motor, a servo-driver and a main control unit, wherein, an outer rotor of the motor is directly connected with output shaft of an engine; an inner rotor is inside of the outer rotor, and the inner rotor shaft is the device output shaft; one of the inner rotor and the outer rotor is inlayed with permanent magnetism, the other is inlayed with windings. A velocity/position sensor on the outer rotor is connected with the main control unit and the servo-driver, a position sensor on the inner rotor is connected with the servo-driver, the main control unit is connected with the servo-driver, the servo-driver is connected with windings, and the main control unit stores the curve date of engine operated with optimum efficiency. The optimum efficiency operation control method of the inventive device is that the velocity/position sensor sends out signals the outer rotor velocity and position in real time; the position sensor sends out the inner rotor position signals in real time; a computer calculate an optimum torque value; the servo-driver dynamically loads inner or outer rotor winding current based on the torque setting value and the relative position of the inner and outer roters, so as to allow the engine to always work at the optimum efficiency curve, thereby outputting maximum mechanical energy at identical oil wear.
Owner:桂林星辰科技股份有限公司

Efficient and energy-saving repairing agent

The invention relates to an efficient, energy-saving and wear-resistant repairing agent with extreme pressure resistance (strong bearing capacity) and strong wear resistance, which greatly improves the performances of lubricating oil and lubricating grease, also greatly reduces energy consumption and mechanical wear and has a function of automatically repairing slight mechanical wear. The efficient, energy-saving and wear-resistant repairing agent with extreme pressure resistance and strong wear resistance comprises a coupling agent, a wear resistant agent, a lubricating agent, a reaction accelerant, a repairing factor and a dispersant and concretely comprises 0.5-2% of aluminium compound, 0.25-2% of calcium compound, 0.25-2% of magnesium compound, 0.25-2% of molybdenum compound, 1-6% of boronized amide, 0.5-5% of the coupling agent, 0.25-2% of the reaction accelerant, 50-95% of stabilizing agent and the dispersant. 3-5% of engine oil is added in the lubricating oil of an engine or gear. Detection results are as follows: the extreme pressure resistance is up to 108kg and is remarkably increased by three grades, the friction coefficient is reduced as comparison with the friction coefficient during no addition and is up to 55.6%, and the wear resistant effect is remarkable. During practical running tests of various vehicles, the oil saving efficiency is up to 11.0-20.90%.
Owner:ANHUI FANYA ENERGY

Energy management method and system for hybrid vehicle

The invention discloses an energy management method and system for a hybrid vehicle. The energy management method comprises the steps that a driver target torque demand m is calculated according to an accelerator pedal opening degree and a vehicle speed; maximum motor charging torque x which can be distributed by a vehicle power system is obtained according to the maximum discharge capacity of a battery pack and the maximum charging capability of a motor; a plurality of torque distribution schemes are generated according to the driver target torque demand m and the maximum motor charging torque x; an equivalent fuel consumption rate Bi of the multiple torque distribution schemes is calculated, wherein i=1, ..., n; and a torque distribution scheme corresponding to the equivalent fuel consumption rate minimum value B0 is determined to be a target torque distribution scheme in the hybrid mode according to the calculation result. According to the energy management method and system, the efficiency of an engine, the motor and the battery pack is comprehensively considered, and the engine torque distribution and the motor torque distribution are timely adjusted according to the driver torque demand, so that the equivalent fuel consumption of a vehicle is the lowest and the fuel saving effect is more obvious.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Biodegradable lubricating oil

The invention relates to a biodegradable lubricating oil. The biodegradable lubricating oil is composed of base oil, an antioxidant, a corrosion inhibitor, an antifoaming agent, a metal deactivator, a demulsifier, an anti-wear agent and copper oxide powder, wherein the base oil is composed of synthetic base oil poly(alpha-olefin), synthetic base oil synthetic fat and synthetic base oil polyether; the antioxidant is anyone or a mixture of diarylamine and sterically hindered phenol, wherein the weight ratio of diarylamine to sterically hindered phenol in the mixture is 1:1; the corrosion inhibitor is a salt formed through using fatty acid and amine; the antifoaming agent is polydimethylsiloxane; the metal deactivator is a toluyltriazole derivative; the demulsifier is polyalkoxyphenol; the anti-wear agent is sulfurated triphenyl phosphate; and the copper oxide powder is nanometer powder, and the particle granularity of the powder is 25-35nm. The biodegradable lubricating oil has the advantages of simple preparation method, scientific and environmentally-friendly preparation scheme, degradability, high work temperature range, good lubricating characteristic, long service life, good protection to parts, high comprehensive performances, reasonable cost, realization of above 90% biodegradation of waste oil, extremely low gas discharge, and obvious energy saving effect.
Owner:陈冬梅

Automobile fuel-economizing inertia gliding apparatus

The invention provides an automobile oil-saving and inertia-skidding device, which comprises a box, a spindle, a large drum and a coupling clutch, wherein the large drum is connected with the automobile transmission shaft; the spindle and the large drum are connected by an overrunning clutch which comprises a star wheel and a roller; roller position limiting grooves are uniformly arranged along the circumferential direction on the surface of the star wheel; the star wheel is fixedly connected with the spindle; the roller is arranged in the roller position limiting groove between the inner surface of the large drum and the outer surface of the star wheel; and the spindle is connected with the output shaft of the automobile gearbox. The automobile oil-saving and inertia-skidding device is characterized in that at least two overrunning clutches are arranged side by side in the axial direction of the spindle between the spindle and the large drum, and any two roller position limiting grooves of the star wheel of the overrunning clutches are not at the same circumference. The automobile oil-saving and inertia-skidding device has the advantages of simple and compact structure and small volume, and can be directly arranged on the rear axle of the automobile, thus facilitating installation. The automobile oil-saving and inertia-skidding device has a remarkable effect of oil saving, and the rate of fuel saving is detected to achieve around 10 percent. The automobile oil-saving and inertia-skidding device can work smoothly because the special overrunning clutch is adopted.
Owner:李建新
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