783results about How to "Avoid stalling" patented technology

A water injection amount control system for a fuel and water injection engine, comprises running state detecting unit for detecting the running state of the engine; an EGR system for recirculating part of exhaust gas of the engine to a combustion chamber of the engine; EGR system operating state detecting unit for detecting or estimating the operating state of the EGR system; water injection amount regulating unit for regulating an amount of water to be injected to the combustion chamber of the engine; and control unit for controlling the operation of the water injection amount regulating unit: wherein the system is arranged to have water injection amount setting unit for deciding a water injection amount based on information from the running state detecting unit and on the operating state of the EGR system detected by the EGR system operating state detecting unit, so that the control unit controls the operation of the water injection amount regulating unit based on the water injection amount decided by the water injection amount setting unit.

A power transmission comprises a continuously variable transmission CVT, which transmits a rotational driving force from an engine E, a starting clutch 5, which variably sets the transmission capacity for the continuously variable transmission CVT, and a control valve CV, which controls the engagement operation of the starting clutch 5. While the engine E is in a partial cylinder operation mode, the control valve CV controls the engagement operation of the starting clutch 5 to attain a predetermined transmission capacity at a rotational speed of the engine that is higher than for a case of the engine in an all cylinder operation mode.

In a hybrid car, or an electric motor-driven four-wheel-drive vehicle, in which an electric motor is driven directly by an output from a generator, vehicle running performance is enhanced. The output from the generator is controlled so as to maintain a generator torque in a range, in which the vehicle does not stall. Specifically, a driving apparatus for the hybrid car includes a second generator 2 driven by an engine 1 for driving one pair of either front or rear wheels 14, 15, an electric motor 5 driven through directly receiving the output from the second generator 2 and driving the other pair of either the front or rear wheels 14, 15, and a four-wheel-drive control unit 6 controlling driving of the second generator 2 and the electric motor 5. When the engine 1 is in an overloaded condition, the four-wheel-drive control unit 6 limits the output of the second generator 2.

A method of operating a supercharger (10) for an automotive engine (20) is disclosed. A supercharger (10) has an input shaft (30) for coupling to a crank shaft (22) of the engine and also for coupling to the rotor of a first electrical machine (40) and the annulus of an epicyclic gear train (60). An output shaft (70) is connected to a compressor (80) and a sun gear of the epicyclic gear train (60). A carrier carrying planet gears of the epicyclic gear train (60) is connected to the rotor of a second electrical machine (50). The first electrical machine (40) is selectively operable to supply electrical energy to the second electrical machine (50). The second electrical machine (50) is selectively operable as a motor or a generator to accelerate or decelerate the compressor (80), thereby tending to increase or decrease the power output of the engine. The first electrical machine (40) is selectively operable as a motor or a generator to control the torque transmitted from the input shaft (30) back to the crank shaft (22) caused by operation of the second electrical machine (50).

The invention discloses a process for producing thin gauge pipeline steel by using a double-stand medium and heavy plate mill. A plate blank with the thickness of 180 mm is used for producing the thin gauge pipeline steel with the thickness less than 10 mm. On the basis that the performance of a rolled piece meets requirements, the thin gauge pipeline steel with a good plate shape can be obtained by controlling the tapping temperature of the plate blank, the rough rolling broadening pass pressing rate, the longitudinal rolling pass pressing rate after rough rolling broadening pass, the rough rolling finishing temperature, the thickness of a middle blank, the finish rolling ending pass pressing rate, the finish rolling finishing temperature, the roller gap inclination and sled function in the rolling process, a high pressure water descaling system, the water entry temperature, the re-reddening temperature, and the head and tail shielding and straightening process of a laminar cooling system. The deformation rate is reduced, and the economic benefit is increased.

The invention discloses a night vision navigation integration system and a control method. The night vision navigation integration system comprises a thermal imaging camera, a night vision controller, an instrument, a DVD, a steering wheel angle sensor, a vehicle body control unit, an engine controller, a transmission controller and an electronic stability program. The thermal imaging camera collects road condition images. The night vision controller analyzes a video signal, identifies a pedestrian in the video signal, judges the relative distance between a vehicle and the pedestrian and relative speeds of the vehicle and the pedestrian according to a steering wheel angle signal, a vehicle speed signal and the installation position of the thermal imaging camera, predicts movement tracks of the vehicle and the pedestrian, judges the collision risk degree of the vehicle and the pedestrian, and sends out warning instructions and / or braking request instructions of different grades according to the collision risk degree. The instrument sends out warning information. The engine controller restrains throttle percentage responses generated by an engine on an accelerator pedal. The electronic stability program controls active pressurization of a pressure cylinder. The night vision navigation integration system and the control method can improve running safety.

A pressure control valve for controlling a travel primary side pressure that is a pressure of a primary side of a travel operation device is controlled by a control unit, thus the travel primary side pressure is controlled, and thereby a traveling speed is intended to be increased, preventing an engine stall.

The invention relates to parking lot management systems, in particular to a car networking system for parking service. The car networking system comprises vehicle license plate recognition systems, a car networking cloud platform and charge management systems, wherein the vehicle license plate recognition systems are arranged in a plurality of parking lots, and the charge management systems control entrance / exit ways of all the parking lots. Each charge management system is used for receiving license number information transmitted by the corresponding vehicle license plate recognition system, calculating parking fares of vehicles entering the corresponding parking slot and transmitting the license number information and parking fare information to the car networking cloud platform; the car networking cloud platform is used for user registration and also used for paying the parking fares of the vehicles corresponding to stored license numbers and sending payment information to the corresponding charge management systems. According to the car networking system, the vehicles do not stop when going up and down a ramp or passing through a curve entrance / exit, vehicle flameout, ramp start and the like can be avoided, and therefore safety accidents are reduced; the vehicles do not need to be stopped, and windows do not need to be opened; vehicle owners will not be affected by wind, rain and snow outside the windows any longer in bad weather.

The invention relates to a food smoking fuel and the making method thereof, adding charcoal powder, adhesive, combustion-supporting agent, moisture keeping agent, water, etc, in the traditional food smoking plant fuel powder, mixing uniformly and compressing the mixture into uniform-density specified shape to meet charge standard and fix quantity, and it can be fired uniformly in the specified shape for long time, more convenient to smoke food and able to reduce fuel quantity, and reducing dust and harmful fume production. And the method is simple and only need uniformly mix plant fuel powder and charcoal powder of a certain size with adhesive, combustion supporting agent, moisture keeping agent, water, etc, and then compression-moulds the mixture in a specified mould to make it.

A method for operating a speed control system of a vehicle having a plurality of wheels is provided. The method comprises receiving one or more electrical signals representative of vehicle-related information. The method further comprises determining, based on the one or more electrical signals representative of vehicle-related information, that one or more of the wheels of the vehicle have overcome an obstacle or are about to overcome an obstacle and that therefore a reduction in an applied drive torque to one or more of the wheels of the vehicle by a powertrain subsystem (applied drive torque) will be required to maintain the speed of the vehicle at a target set-speed of the speed control system. The method still further comprises automatically commanding the application of a retarding torque to one or more of the wheels of the vehicle to counteract the effect of an overrun condition in the powertrain subsystem from increasing the speed of the vehicle. A system for controlling the speed of a vehicle comprising an electronic control unit configured to perform the above- described methodology is also provided.

The invention discloses a hybrid electric vehicle start auxiliary control method, which belongs to the field of hybrid electric vehicle start auxiliary control. The method comprises the following steps: acquiring a start state signal; if an automobile is in a start state, acquiring an engine speed signal; if engine speed is lower than idling speed, acquiring the auxiliary torque of a motor according to the engine speed; and controlling the motor to output the auxiliary torque. In the invention, the variable auxiliary torque is provided by the motor according to the engine speed, thereby, a hybrid electric vehicle can be smoothly started and engine miss is prevented.

An ECU executes a program including the steps of sensing a slope of a lane if an estimated temperature T of a clutch is higher than a predetermined threshold value (1) (YES in S100) (S102), calculating running resistance and friction resistance (S104), performing torque demand control (S106), controlling the clutch such that the clutch is engaged (S108), and performing normal control if the estimated temperature T of the clutch is lower than a predetermined threshold value (2) (YES in S110) (S112).

The invention discloses a total hydrocarbon tester having the on-line attenuation function. The tester comprises a sampling pipe, a pump, a hydrogen flame ionization detector, a compressed air bottle and a mixed gas chamber. An input end of the mixed gas chamber is connected with the sampling pipe, the other input end of the mixed gas chamber is connected with an air pipe, and the air pipe is connected with the compressed air bottle and provided with an air flow control device. The output end o the mixed gas chamber is connected with the pump through a mixed gas flow control device, and the pump is connected with the hydrogen flame ionization detector. Sample gas enters the mixed gas chamber, is mixed with clean air and reaches the hydrogen flame ionization detector under the action of the pump, and the hydrocarbon content of the sample gas is tested. The mixed gas flow control device and the air flow control device cooperate to control the proportion of the sample gas to the clean air, and the on-line attenuation function is achieved. By means of the total hydrocarbon tester, the concentration of hydrocarbon in the sample gas entering the hydrogen flame ionization detector is lowered in a quantitative mode, and shutdown of the tester due to overload or insufficient oxygen in the sample gas or other reasons is avoided.

The invention relates a method and a system for controlling power matching of a mobile working machine. The system comprises a travelling hydraulic system, a working hydraulic system, an engine system, a sensor, a pressure sensor, a rotation speed sensor, a controller and a control unit, wherein the travelling hydraulic system and the working hydraulic system are driven by the engine system; the sensor is used for acquiring the flow quantity of the working hydraulic system and the travelling hydraulic system; the pressure sensor is used for measuring the pressure of the working hydraulic system and the travelling hydraulic system; the rotation speed sensor is used for measuring the rotation speed of an engine; the controller is used for receiving signals of all sensors; and the control unit is used for controlling the two hydraulic systems. The controller calculates the power of the two hydraulic systems and the maximum theoretical output power of the engine at a current rotation speed and reasonably allocates power to the engine according to an actual working condition when the sum of the power of the two hydraulic systems reaches the maximum theoretical output power of the engine. By the system for controlling power matching, reasonable power allocation of the two hydraulic systems is ensured, and the engine is prevented from flameout due to overload.

The invention discloses a load sensitive hydraulic system and a power controller thereof as well as a crane. The load sensitive hydraulic system comprises a proportional decompression valve, wherein the proportional decompression valve is arranged on an oil path between a control oil source and an oil inlet of a pilot-operated handle or is arranged on an oil path between a first oil outlet of the pilot-operated handle and a control end of a first main valve; and outlet pressure of the proportional decompression valve is preset so that when the pilot-operated handle is at the biggest opening degree, the output power of a load sensitive pump is matched with the output power of an engine. Compared with the prior art, the load sensitive hydraulic system has the advantages that the adaptability of the output power of the load sensitive pump and the output power of the engine can be improved, so that a lower engine idle speed can be selected and the power consumption is reduced; the great power can be output by an oil pump when the engine is operated at a high speed, and the energy efficiency is improved; and furthermore, the engine is effectively prevented from being stalled.

The invention discloses an urgent speed reducing and gear shifting control method and system of an automatic transmission, which are used for controlling gear-shift jumping of a vehicle in case of slamming on the brake for speed reduction. The urgent speed reducing and gear shifting control method comprises the following steps of: acquiring multiple operating parameters of the vehicle in real time, wherein the multiple operating parameters at least include a current gear position, a brake signal and a current acceleration value a of the vehicle; calculating to obtain critical acceleration value a 0 based on the current gear position and preset gear shift time t; acquiring a target gear position according to a preset jump shift-down mode if the brake signal is available and the current acceleration value a is less than the critical acceleration value a 0, if not, acquiring the target gear position according to a normal shift-down mode; and carrying out gear shift from the current gear position to the target gear position on the vehicle.

The invention provides a clutch starting recognition and engine auxiliary control system for a manual-gear automobile. The clutch starting recognition and engine auxiliary control system comprises a signal acquisition unit, a signal processing circuit, an engine controller and a driving control circuit, wherein the signal acquisition unit comprises a signal acquisition module for acquiring various signal inputs; the signal processing circuit is used for converting various acquired analog signals into digital signals; the engine controller is used for judging according to the digital signals after processing so as to recognize whether the current clutch is at a starting working condition; if the clutch is at the starting working condition, an idling spark advance angle capable of increasing the torque reserve of an engine and electronic throttle opening are calculated; the driving control circuit is used for outputting a control signal and controlling an automobile ignition coil and the electronic throttle opening so as to improve the current torque reserve of the engine. According to the clutch starting recognition and engine auxiliary control system, higher torque reserve can be achieved during clutch starting of the automobile, much dropping of the rotating speed of the engine or even flameout of the engine is prevented, and the disadvantage of easy flameout during starting is overcome.

The invention discloses a vehicle-mounted combined battery intelligent power supply system and a power supply method. The combined battery, such as a double-battery parallel power supply device (12),a double-battery series power supply device (17) or a multi-battery series-parallel power supply device (21), is used for upgrading the traditional automobile storage battery; the intelligent power supply method, namely, the control unit (8), controls each of the battery switches in accordance with an engine state, such as shut down, start up and operation, and each battery voltage, to provide therequired electric power, the main contents include: providing a power supply similar to the conventional storage battery when the engine is stopped, and the battery leakage protection is provided asneeded; providing a higher starting voltage than a conventional storage battery to shorten the starting time when the engine is started; when the engine is in operation, a supplementary supply voltagewhich is not lower than a certain preset voltage is provided, so that the phenomenon of insufficient power supply influencing the stable operation of the engine won't occur in the electric appliancesystem.

The invention provides a control method for a starting gear clutch of a manual shift gear vehicle. According to the method, an ECU detects a gear status signal of a gear sensor and a clutch displacement signal of a clutch travel sensor to identify starting intention of a driver, before the clutch is connected, the opening degree of a throttle of an engine and the rotation speed of the engine are increased, torque is fast improved in the clutch loosening process, and thus starting stability is guaranteed, and starting flameout is prevented. Compared with the prior art, because a control logic system is improved and starting control logic is added, the rotation speed of the engine can be increased in advance according to the signal value of the gear sensor, and thus flameout is less likely to happen in the starting process. After the gear is shifted, the rotation speed of the engine is increased, error judgment of the starting intention of the driver is avoided, and thus the fuel consumption of the whole vehicle will not increase.

A method and apparatus for controlling a turbo-machine in case of failure of the main burn fuel flow calculator. The apparatus receives at least information from various sensors as well as from the main burn fuel flow calculator. The method and apparatus, herein disclosed, provides a smooth and secure transition between the last burn fuel flow value before the failure of the main burn fuel flow calculator and the future burn fuel flow values.

The invention relates to a power distribution control method and a power distribution control system for a mobile operation machine. The power distribution control system comprises a traveling hydraulic system, a working hydraulic system, an engine system, a flow sensor, a pressure sensor, a rotating speed sensor, a controller and a discharge capacity controller, wherein the traveling hydraulic system and the working hydraulic system are driven by the engine system; the flow sensor is used for measuring the flow of the working hydraulic system; the pressure sensor is used for measuring pressure of the working hydraulic system and the traveling hydraulic system; the rotating speed sensor is used for measuring rotating speed of an engine; the controller is used for receiving signals of the sensors; and the discharge capacity controller is used for controlling the discharge capacity of a traveling pump. Power of the working hydraulic system and maximum theoretical output power of the engine at the current rotating speed are calculated by the controller. When the sum of the power of the working hydraulic system and the power of the traveling hydraulic system achieves the maximum theoretical output power of the engine, the power of the traveling hydraulic system is reduced by the controller. By the power distribution control system, not only can the working hydraulic system be ensured to obtain the maximum power, but also the engine is prevented from shutting down due to overload.

The apparatus is an electronic speed control for farm machines. A microprocessor is fed data on the tractor engine speed, the tractor ground speed, and the manual speed lever setting, and electronically matches the desired ground speed to the engine speed to prevent stalling the engine. Ground speed is controlled by using the microprocessor to electrically vary a control valve that replaces the usual mechanical linkage between the speed control lever and the hydraulic pumps driving the hydraulic wheel motors.

A combustor fire cover comprises an annular inner ring wall face, an annular outer ring wall face and a cover body located above the inner ring wall face and the outer ring wall face, wherein the inner ring wall face and the outer ring wall face are concentrically arranged in a spaced mode. The outer ring wall face is provided with fire holes and small fire holes, wherein the fire holes are evenly distributed in the circumferential direction of the outer ring wall face at intervals and penetrate through the outer ring wall face in the thickness direction, and the small fire holes and the fire holes are arranged in a vertical spaced mode. A partition plate is arranged between the inner ring wall face and the outer ring wall face, the space defined by the inner ring wall face, the outer ring wall face and the cover body is partitioned into a first cavity and a second cavity, the fire holes are located in the first cavity, the small fire holes are located in the second cavity, the partition plate is provided with holes to enable the first cavity and the second cavity to be communicated, the first cavity is communicated with an external gas mixing room, and fuel gas enters the second cavity from the first cavity through the holes. By means of the combustor fire cover, extinction caused when big fire and small fire are switched or detonation caused when fire is extinguished or the like can be prevented, the phenomena of floating flames and blow-off of the fire holes of the fire cover can be prevented, and the combustor fire cover is of a detachable structure and is convenient to clean.

The invention provides a method and a system for determining a blade control parameter of a variable speed and variable pitch wind generating set. The method comprises the following steps: monitoring current set power of a target variable speed and variable pitch wind generating set in real time; determining a curve between a wind power utilization coefficient and a tip speed ratio of the target variable speed and variable pitch wind generating set; determining an intersection point between the wind power utilization coefficient and the tip speed ratio corresponding to different pitch angles and a set power value at current air density corresponding to the intersection point; when the monitored current set power meets a set power set value, determining a minimum pitch angle corresponding to the current set power under the condition of avoiding blade stall; when the current set power is within the range of two set power set values, determining the minimum pitch angle corresponding to the current set power under the condition of avoiding blade stall by using an interpolation method. The purposes of avoiding the blade stall and improving the set operation stability and the power generation under the condition that the original design of the set is not changed can be achieved.

The invention discloses an engine exhaust brake control method. According to the engine exhaust brake control method, a first control mode is involved; when a vehicle runs on a downhill, a gradient sensor acquires a vehicle downhill running signal and sends the signal to a controller; when the time of the vehicle downhill running signal is greater than or equal to preset time of the controller, and when a clutch of the vehicle is switched off, and a speed changer is at a driving gear position, the controller switches on an exhaust brake electromagnetic valve, and the vehicle executes engine exhaust brake; and when the gradient sensor does not output the vehicle downhill running signal, the controller switches off the exhaust brake electromagnetic valve. Whether the downhill is long can be judged according to the time duration of the downhill running signal acquired by the gradient sensor, and a function of automatically switching on engine exhaust brake can be realized.

The invention discloses a pump truck power matching control method. The method includes the steps that current pump truck working condition environment parameters are detected; a database is inquired for obtaining pump truck optimal power parameters matched with the current pump truck working condition environment parameters; and according to the pump truck optimal power parameters, the working state of an engine and the working state of an oil pump are adjusted. By the adoption of the method, a full-working-condition pumping test can be conducted on a pump truck in a plateau region in advance, plateau demarcation of the engine is finished, and corresponding parameters are recorded to establish the database. In the actual operation process, the current pump truck working condition environment parameters including the altitude height, the gear and the oil way pressure are detected firstly, then the database is inquired for obtaining the matched pump truck optimal power parameters according to the current pump truck working condition environment parameters, and then the working states including the engine rotation speed and the engine power coefficient of the engine and the oil pump control current of the oil pump are adjusted to guarantee that the pump truck has the high work efficiency when the engine works stably. The invention further discloses a pump truck power matching control system. The beneficial effects of the pump truck power matching control system are mentioned above.