46results about How to "Stable idle" patented technology

The invention discloses a method and system for controlling the idle speeds of an engine. The method includes the steps that when an accelerator pedal is completely released, current parameter data for reflecting whole-vehicle practical operation conditions are obtained; the basic idle speed corresponding to the current temperature of water of the engine and a current altitude correction coefficient is obtained to serve as the first basic idle speed; the rotating speed needed by the engine at the current temperature of oil of a gearbox is obtained, and the larger value between the first basic idle speed and the rotating speed required by the engine serves as the second basic idle speed; the third basic idle speed, the fourth basic idle speed and the target idle speed are sequentially determined according to the conditions whether a vehicle is in the first-type experiment working condition or not, whether steering operation exists or not and whether the current vehicle speed is zero or not. By means of the method and system, the lowest rotating speed capable of reliably maintaining running of the engine under the whole-vehicle practical operation condition can be determined through the current parameter data to serve as the current target idle speed for outputting, and the problem that the idle speed is excessively high or excessively low can be further solved.

To permit easy and adequate setting of a gain in an internal combustion engine (hereinafter be called an “engine”) for the surer stabilization of an idle speed, the present invention provides a device for controlling an air volume during an idle operation of the engine. This device is provided with a first estimation unit for estimating a current output torque correlation value corresponding to a present intake-air volume of the engine; a second estimation unit for estimating an output torque correlation value correction amount corresponding to a difference between a current engine speed and a target engine speed of the engine; a third estimation unit for estimating a target output torque correlation value based on the correlation value and the correction amount; and a control unit for controlling an intake-air-volume adjusting system of the engine to achieve an intake-air volume which is equivalent to the target output torque correlation value.

The invention provides a control system for an electric driver-training car. The control system comprises a single-chip microcomputer, a motor driving circuit, a motor rotating-speed measuring circuit, an idle speed adjusting circuit, an electronic accelerator pedal, a brake switch, a neutral gear switch and an ignition switch, wherein the motor driving circuit, the motor rotating-speed measuring circuit, the idle speed adjusting circuit, the electronic accelerator pedal, the brake switch, the neutral gear switch and the ignition switch are connected with the single-chip microcomputer respectively. According to the operation intention of a driver and corresponding sensor signals during operation, the control system for the electric driver-training car analyzes and calculates input signals, simulates the operating condition of a fuel car and controls output of driving signals so as to control the motor rotating speed to meet the operation requirements of the electric driver-training car and keep the working stability of the electric driver-training car. The system has the characteristics of simple hardware structure, stable and reliable data acquisition, high signal timeliness, freedom from lags and the like, a motor can be effectively, stably and quickly controlled conveniently, and the driving feeling of a fuel driver-training car can be realized.

The present invention discloses a digital ignition control method of miniature carburetor gasoline engine and its device. Said method and device can control ignition angle when the engine is being invarious running conditions, specially can regulate ignition angle according to the difference value of the true running idle rotating speed and target idle rotating speed, when the difference value is positive value, the ignition angle can be reliatively reduced, when the difference value is negative value, the ignition angle can be relatively increased, after the control process is passed through a part of time, the rotating speed of the engine can be fluctuated around some average rotating speed, said average rotating speed is the target rotating speed.

The invention discloses an idle speed control method of a hybrid electric vehicle. The idle speed control method comprises the following steps: respectively calculating an idle target speed required by current energy management and a minimum speed of current power system; obtaining a transmission request speed and an engine request speed respectively; taking the maximum of idle speed, transmissionrequest speed and engine request speed, and taking the minimum of the maximum and the minimum of the powertrain speed as the motor target speed; controlling the motor torque by the motor PID controller so that the motor speed reaches the motor target speed and the power system enters the stable idle speed. the method is applied, the idle speed control of the engine with different rotational speeds is realized by the rotational speed control of the electric motor, The motor has fast torque response and stable idle speed, and adopts PID control mode, which limits the upper and lower limits of torque and the speed of change in the speed control process of the motor, ensures the smoothness of the vehicle when entering or exiting the idle speed working condition, and improves the fuel consumption level and NVH level in the idle speed process.

To permit easy and adequate setting of a gain in an internal combustion engine (hereinafter be called an “engine”) for the surer stabilization of an idle speed, the present invention provides a device for controlling an air volume during an idle operation of the engine. This device is provided with a first estimation unit for estimating a current output torque correlation value corresponding to a present intake-air volume of the engine; a second estimation unit for estimating an output torque correlation value correction amount corresponding to a difference between a current engine speed and a target engine speed of the engine; a third estimation unit for estimating a target output torque correlation value based on the correlation value and the correction amount; and a control unit for controlling an intake-air-volume adjusting system of the engine to achieve an intake-air volume which is equivalent to the target output torque correlation value.

The invention discloses a method and device for controlling the idling speed of an engine and belongs to the field of automobile electronic control. The method for controlling the idling speed of the engine comprises the steps that a starting request of an electrical load is received; the electrical load is controlled to work, an idling speed ignition angle of the engine is adjusted to be optimal when the electrical load works, the air input of a throttle valve is adjusted so that the actual rotating speed of the engine can be improved, and adjustment of the air input of the throttle valve is stopped when the actual rotating speed of the engine is equal to a first target idling speed; a stopping request of the electrical load is received; the electrical load is controlled to stop working, the idling speed ignition angle of the engine is adjusted to be optimal, the air input of the throttle valve is reduced so that the actual rotating speed of the engine can be lowered, reduction of the air input of the throttle valve is stopped when the actual rotating speed of the engine is equal to a second target idling speed, and the second target idling speed is lower than or equal to the first target idling speed. By the adoption of the method and device for controlling the idling speed of the engine, the oil combustion efficiency can be kept highest when the engine is at the idling speed, and oil consumption is reduced.

A method for adjusting a lookup table that includes preset on-time values for an injector of an engine linked to fuel injection quantity values (δ). The following steps are executed in a situation when the output shaft of the engine is disconnected from the output shaft of the gearbox. A torque loss value (Tloss) and a combustion efficiency value (εF) are determined or received. An actual fuel injection quantity value (δactual) is calculated, based on the torque loss value and the combustion efficiency value. An on-time value (tg) linked to the actual fuel injection quantity value is determined from the lookup table and the on-time value is compared with a presently applied on-time value (tb) that is established by an engine control with the aid of a regulator and the lookup table. The lookup table is adjusted based on the result of the comparison.

The invention discloses an ethanol gasoline stainless steel oil tank with a theftproof lock used for a strengthening large vehicle, and relates to a stainless steel oil tank. A theftproof lock device is mechanically connected with a closed oil tank cover, a stainless steel plate is pressed and welded into a tank body which is welded with a strengthening hoop; the tank body and a stainless steel oil filling pipe are welded; the stainless steel oil filling pipe is mechanically connected with a stainless steel extension pipe; the oil filling pipe is mechanically connected with the closed oil tank cover; the bottom of the stainless steel extension pipe is mechanically connected with a filter screen; the tank body is mechanically connected with a stainless steel oil discharge plug; the tank body is welded with a stainless steel clapboard; the upper part of the tank body is provided with an ethanol gasoline meter sensor which is mechanically connected with an oil delivery pipe; and the oil delivery pipe is mechanically connected with a filter strengthening gasoline filter. The ethanol gasoline stainless steel oil tank ensures that vehicles have stable idle speed, forceful acceleration and smooth starting, and is convenient to use, assemble and maintain. The mechanical connection of the theftproof lock and the closed oil tank cover ensures that an undesirable person can not steal the oil easily to obtain benefit, and the ethanol gasoline stainless steel oil tank is widely applied to large vehicles using ethanol gasoline.

The invention discloses a hybrid electric vehicle engine idling speed control method which includes the steps: controlling engine idling speed according to the following control process when a driverneeds the engine idling speed in a hybrid power creeping mode: controlling an engine to control torque; controlling a driving motor to control speed. The target speed of the driving motor is idling speed, and the creeping mode means that a vehicle can move at a certain speed after the vehicle is started and when the driver does not step on a brake or an accelerator. Speed control precision of thedriving motor is about 60% higher than that of a traditional engine, and the control method has the advantage of engine idling speed control stability.

The invention relates to a double check valve integrated device applicable to an automobile fuel vaporization system. The double check valve integrated device comprises a venturi body, a Venturi structure is formed in the venturi body, a main valve plate is arranged in a main connection end at the top of the Venturi body, a main end cover is connected to the main connection end to form a first check valve structure, an assistant valve plate is arranged in an assistant connection end at the side of the venturi body, an assistant end cover is connected to the assistant connection end to form a second check valve structure, and a main connector is arranged at the gas outlet end of the venturi body. Therefore, two check valves are integrated on one venturi, the number of parts in an EVAP system are decreased effectively, and the occupied space is also reduced; as the components are reduced on the whole, traditional steps of press fitting of pipes are reduced, and manufacturing and mountingin site are facilitated; each check valve can be designed as a structure of elbow and in an adjustable form, so that the requirements of pipe routing adjustment can be met; and various secondary andmain structures are available and can be selected according to pipeline types.

The invention relates to a surface mine ecological geological environment exploration sampling device, and relates to the technical field of mine exploration equipment, the surface mine ecological geological environment exploration sampling device comprises a rack, the rack is provided with a sampling cylinder used for sampling, a lifting assembly driving the sampling cylinder to vertically lift, and a driving motor driving the sampling cylinder to rotate, at least one sliding groove extending in the vertical direction is formed in the surface of the sampling cylinder, a sliding strip is arranged in the sliding groove in a sliding mode, a push plate is fixedly arranged on the sliding strip, and the push plate is located in the sampling cylinder. The sampling device has the effect of improving the convenience of taking out the sample from the sampling cylinder.

The invention discloses a diaphragm plate type idle speed control valve, comprising a valve body, wherein the valve body comprises a coil bag assembly component, and a valve base mounted in match with the coil bag assembly component; the coil bag assembly component comprises a coil bag assembly mounted in a matched manner, a sleeve, a piston assembly, a third pressure spring and an upper cover plate; the sleeve, the piston assembly, the third pressure spring and the upper cover plate are integrally riveted with the coil bag assembly; the valve body comprises a diaphragm plate component; the diaphragm plate component comprises a diaphragm plate assembly, a lower cover plate assembly, a second pressure spring and a transmission rod assembly; the diaphragm plate assembly and the lower cover plate assembly are mounted in the matched manner; the second pressure spring is arranged between the diaphragm plate assembly and the lower cover plate assembly; the diaphragm plate assembly comprises a lower pressing plate, a diaphragm plate and an upper pressing plate, which are mounted in the matched manner; and a vacuum chamber is formed between the diaphragm plate assembly and the coil bag assembly component. The diaphragm plate type idle speed control valve provided by the invention can accurately control the flow of air entering an engine according to vacuum variation caused by variation of a working condition of an idle speed of the engine, so that the idle speed of an automobile is table, the service life of the engine is prolonged, and the riding comfort degree of the automobile can be improved.

The invention discloses an energy-efficient and environment-friendly vehicle comprehensive maintaining agent and a preparation method thereof. The maintaining agent comprises the following components in percentage by weight: 20 to 60 percent of polyisobutene, 1 to 5 percent of 1,1,1-trichloropropane, 1 to 3 percent of dibromoethane, 0.5 to 5 percent of organic rare earth salt, 0 to 57 percent of aviation kerosene, 0 to 4 percent of organic manganate and 0.5 to 2 percent of surfactant. In the invention, the preparation process is simple, the obtained maintaining agent can be used in both gasoline and diesel with 15 to 27 percent of fuel oil reduced and over 50 percent of tail gas reduced, and the maintaining agent also has functions of maintaining and repairing oil tanks, oil paths, oil nozzle, air valves, combustion chambers and ternary catalyst systems of vehicles, increases the power of the vehicles, makes the idle speed smooth and the acceleration flexible and powerful and greatly reduces tail gas discharge.

A spline flywheel assembly for a dual-clutch automatic transmission, comprising a flexible flywheel disc and a spline flywheel connected to the flexible flywheel disc, the spline flywheel adopts a disc-shaped structure, and its outer ring is provided with a plurality of bosses in the circumferential direction , the boss is provided with a threaded hole, and the center of the spline flywheel disc is provided with a spline hole; the flexible flywheel disc includes a connecting plate, and the connecting plate is riveted with the flexible disc through rivets, and the outer part of the connecting plate The flange sleeve is provided with a ring gear, and the connecting plate and the flexible disk are provided with crankshaft flange connection holes. The flexible disc is connected to the dual-clutch automatic transmission through the spline flywheel, replacing the hydraulic torque converter for power transmission; under the premise of ensuring the use function, different sizes can be designed according to the structure and arrangement between the engine and the transmission The spline flywheel does not affect the overall layout of the transmission system in the body when it is equipped with different models.

In an outboard marine drive, a primary partition made of elastomeric material is provided in a lower part of the extension case, and a drive shaft and an exhaust pipe are sealingly passed through the primary partition. Thereby, the extension case is kept out of direct contact from the exhaust gas, and is therefore prevented from excessive heating. The exhaust pipe and the drive shaft typically have a large length, and it is advantageous to support them at parts thereof near a lower end thereof. The use of elastomeric material for the primary partition is particularly advantageous because it not only can favorably insulate heat but also can accommodate any positional errors in the exhaust pipe and the drive shaft relative to the extension case. When a secondary opening is formed in an upper part of the exhaust pipe to prevent excessive build up of exhaust back pressure when the engine is idling, a secondary partition may also be provided in an upper part of the extension case.

The invention relates to energy-saving and wear-resistant lubricating oil. The energy-saving and wear-resistant lubricating oil comprises benzotriazole, triphenyl phosphate, polybutadiene, chlorinated paraffin, dibutyl phthalate and secondary oil. The energy-saving and wear-resistant lubricating oil is used with conventional lubricant at the same time, the adding amount of the energy-saving and wear-resistant lubricating oil is 3-5% of the sum of the energy-saving and wear-resistant lubricating oil and the conventional lubricant, and the energy-saving and wear-resistant lubricating oil is suitable for liquid lubricating oil, which does not include braking oil, with motion interface being lower than 320 DEG C. The energy-saving and wear-resistant lubricating oil has the advantages that the energy-saving and wear-resistant lubricating oil applied to a car can evidently improve the working state of an engine, and idling stability, noise lowering, acceleration sensitivity and power enhancing of the engine are achieved; the engine is good in low-temperature starting performance especially in winter; fuel can be combusted completely, tail gas is improved, and environment protection is achieved; energy consumption is lowered by 10-38%; the abrasion of the engine and a power transmission part is low, and the service life of the engine and the power transmission part can be prolonged by 50% to 2 times; when the lubricating oil is applied to other fields, machinery service life can be prolonged by 1-2 times.

The invention relates to a gasoline detergent additive which adopts the following technical scheme that a boracium-titanium molecular sieve catalyst is prepared in an industrial scale, and epoxidized polyisobutene with high yield is prepared by using a boracium-titanium molecular sieve as a catalyst and peroxide as an oxidizing agent; the epoxidized polyisobutene is used as a raw material, and under the action of the catalyst, a main additive of the gasoline detergent additive is prepared by direct aminolysis under low pressure; and auxiliary materials of an ashless dispersant, base oil, an antioxidant, a polymerization inhibitor, an antirusting agent, an emulsion splitter, and the like are added in a material mixing kettle according to a certain proportion and heated and uniformly stirred. The gasoline detergent additive can effectively clear the descendent deposit carbon of an engine nozzle and an air inlet valve, improve the lubricating performance of fuels, prevent the wear of the air inlet valve, prolong the service life of an engine and reduce the maintenance cost.

The present invention discloses a gas engine which includes body and has burning chamber inside. The body is equipped with mixture gas intake and air outlet connected with burning chamber; the body also has initiator and ignition apparatus connected with inside crankshaft, ignitor connected with magnet motor, noise reducer connected with air outlet slit. Character of it is that body is equipped with controller which can reduce pressure of high-pressure gas, and fill the mixture gas intake with mixture gas of low-pressure gas and air; controller is equipped with startup enrichment-system of quickening engine start, idle speed controlling apparatus of adjusting engines idle speed, air control shutter controlling apparatus of adjusting engine power. Gas engine of the present invention can be started by idle speed quick startup with advantages of operations convenient, quick startup, stable idle speed and good acceleration.

The invention discloses an energy-efficient and environment-friendly vehicle comprehensive maintaining agent and a preparation method thereof. The maintaining agent comprises the following components in percentage by weight: 20 to 60 percent of polyisobutene, 1 to 5 percent of 1,1,1-trichloropropane, 1 to 3 percent of dibromoethane, 0.5 to 5 percent of organic rare earth salt, 0 to 57 percent of aviation kerosene, 0 to 4 percent of organic manganate and 0.5 to 2 percent of surfactant. In the invention, the preparation process is simple, the obtained maintaining agent can be used in both gasoline and diesel with 15 to 27 percent of fuel oil reduced and over 50 percent of tail gas reduced, and the maintaining agent also has functions of maintaining and repairing oil tanks, oil paths, oil nozzle, air valves, combustion chambers and ternary catalyst systems of vehicles, increases the power of the vehicles, makes the idle speed smooth and the acceleration flexible and powerful and greatly reduces tail gas discharge.

The invention relates to the technical field of automatic gearboxes, in particular to a clutch control method, an automatic gearbox control unit and an automobile, wherein the clutch control method isapplied to the automatic gearbox control unit. The clutch control method comprises the following steps that the rotating speed of a gearbox input shaft and the rotating speed of an engine are obtained, the difference between the rotating speed of the gearbox input shaft and the rotating speed of the engine is calculated, and when the difference is greater than a preset value, an oil pressure reduction command is issued to a clutch in an automatic gearbox. Both the automatic gearbox control unit and the automobile adopt the clutch control method, and according to the clutch control method, theautomatic gearbox control unit and the automobile, engine emissions and the fuel cost are lowered.

The invention relates to the technical field of automatic gearboxes, in particular to a clutch control method, an automatic gearbox control unit and an automobile, wherein the clutch control method isapplied to the automatic gearbox control unit. The clutch control method comprises the following steps that the rotating speed of a gearbox input shaft and the rotating speed of an engine are obtained, the difference between the rotating speed of the gearbox input shaft and the rotating speed of the engine is calculated, and when the difference is greater than a preset value, an oil pressure reduction command is issued to a clutch in an automatic gearbox. Both the automatic gearbox control unit and the automobile adopt the clutch control method, and according to the clutch control method, theautomatic gearbox control unit and the automobile, engine emissions and the fuel cost are lowered.

The invention discloses an ethanol stainless steel vehicle-used oil tank with a theftproof lock, and relates to an ethanol stainless steel vehicle-used oil tank with a theftproof lock. The ethanol stainless steel vehicle-used oil tank comprises a stainless steel tank; a theftproof lock device is mechanically connected with a closed oil tank cover, a stainless steel plate is pressed and welded into a tank body; the tank body and a stainless steel oil filling pipe are welded; the stainless steel oil filling pipe is mechanically connected with a stainless steel extension pipe; the oil filling pipe is mechanically connected with the closed oil tank cover; the bottom of the stainless steel extension pipe is mechanically connected with a filter screen; the tank body is mechanically connected with a stainless steel oil discharge plug; the tank body is welded with a stainless steel clapboard; the upper part of the tank body is provided with an ethanol gasoline meter sensor which is mechanically connected with an oil delivery pipe; and the oil delivery pipe is mechanically connected with a filter strengthening gasoline filter. The mechanical connection of the theftproof lock and the closed oil tank cover ensures that an undesirable person can not steal the oil easily to get benefit, and the ethanol stainless steel vehicle-used oil tank is widely applied to vehicles using ethanol gasoline.

The present disclosure relates to an idle power generation method, device and vehicle of a hybrid vehicle. The method includes: when the hybrid vehicle is in the idling power generation state, acquiring the temperature of the power battery of the hybrid vehicle; determining the target torque of the belt drive starter generator BSG of the hybrid vehicle according to the temperature of the power battery; determining the initial torque of the BSG One or more intermediate torques between the torque and the target torque; determine the intake air volume increment of the engine according to the intermediate torque closest to the initial torque; determine the fuel injection volume of the engine according to the determined intake air volume increment; control The engine runs with the determined fuel injection quantity; the air intake quantity increment of the engine is determined according to an intermediate torque closest to the current torque of the BSG until the torque of the BSG reaches the target torque. In this way, when the hybrid vehicle is generating electricity at idle speed, the engine speed fluctuation can be reduced, thereby reducing engine vibration and stabilizing the engine idle speed.

The present invention involves the additive for liquefied petroleum gas for automobiles. It is composed of raw materials with the following weight ratio: at least one oxygen-containing organic solvent 40-60; at least one polymer 5-15; at least one oxygen-containing contentNon-ion surfactants 40-60; at least one antioxidant 5-15.The above-mentioned oxygen-containing organic solvents are selected from nomatum (ethyl) alcohol, MTBE, or di methalin;The antioxidants are selected from 2,2-sub-basis bisphenols or styrerized phenol, etc.;Dilately, such as dilate,; this additive can prevent car nozzles, valve coke, and the valve flap bonding of the valve of the combustion system solenoid valve and gasification evaporator.The Qingjiao was extended from December to more than 6 months; the average of the oil-based Jeta car saved 2-3 liters of fuel 100 kilometers.

The invention discloses an engine gas inlet system of an automobile. The engine gas inlet system of the automobile comprises an upper shell, a lower shell, a filtering element and a first air inlet pipe for conveying gas to the filtering element, and further comprises a vacuum box cover plate, a first connecting pipe, a second connecting pipe, a third connecting pipe, a vacuum motor, a vacuum electromagnetic valve, an air inlet baffle and a second air inlet pipe used for conveying gas to the filtering element. The upper shell and the vacuum box cover plate form a vacuum box, and the vacuum box is connected with an engine air inlet manifold and the vacuum electromagnetic valve through the first connecting pipe and the second connecting pipe. The air inlet baffle is located in the second air inlet pipe. The vacuum motor comprises a motor cover plate, an electric membrane and a pull rod, the motor cover plate and the elastic membrane form vacuum space, and the vacuum space is communicated with the vacuum electromagnetic valve through the third connecting pipe. One end of the pull rod is fixedly connected to the outer side of the elastic membrane, and the other end of the pull rod is hinged to the air inlet baffle. According to the engine gas inlet system of the automobile, the inflating efficiency and the NVH performance of an engine can be easily improved. The invention further discloses the automobile comprising the engine air inlet system.

The invention discloses a novel fuel oil catalyst. The novel fuel oil catalyst comprises a tank body, wherein an oil pipe is arranged in the tank body, and a rare earth material is filled in the tankbody. According to the novel fuel oil catalyst, the structural arrangement is ingenious, and the arrangement is reasonable; by adopting a separation technology, fuel oil does not make contact with therare earth material and directly passes through the oil pipe, the fuel oil enters the oil pipe in the tank body through a first oil pipe joint, the rare earth material which is located in the part, outside the oil pipe, of the interior of the tank body can generate infrared light, electricity and magnetic waves to catalyzing the fuel oil in the oil pipe, so that the fuel oil molecules undergo fission and are changed into a semi-liquid state from a liquid state; and the fuel oil subjected to catalysis is output through another oil pipe joint, and the combustion efficiency of the fuel oil is improved. Such fuel oil can be fully combusted in a combustion chamber, and therefore the engine power is improved, the starting speed is high, the fuel oil is saved, the tail gas emission is reduced, the carbon deposit is cleared, the engine noise is reduced, the service life of the engine is prolonged, the idling speed is more stable, the climbing is more powerful, and meanwhile, the phenomenon that the blocking of an engine nozzle caused by the technology adopting an oil-economizing bead can damage the engine can be effectively avoided.

The invention provides a special outer ring for motorcycle idling speed control valve, which includes a valve body, an air intake pipe is fixedly installed at the air inlet on one side of the valve body, a connecting pipe is fixedly installed on one side of the air inlet pipe, and a connecting pipe is arranged inside the connecting pipe. Ring, both sides of the outer surface of the ring are provided with hinges, one side of the hinge is hinged with a connecting plate, both sides of the intake pipe are threaded with threaded rods through the threaded holes opened, and one end of the threaded rod extends to The inside of the connecting pipe is welded with the outer surface of the connecting plate, and one end of the threaded rod extends to the outer surface of the intake pipe and is fixedly installed with a circular plate. The special outer ring for the motorcycle idle speed control valve, by setting the ring, the hinge and the connecting plate to cooperate with the threaded rod, so that the connecting plate can rotate around the hinge point, so that it can control the flow of air entering the valve body, so that the valve body It can be adapted to different motorcycles for idling, thereby making it more stable when idling.