770results 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 the method and apparatus for transmitting data packets, a source device places identifiers in data packets being transmitted. The identifiers identify data packets that the source device considers properly received by a destination device or identify data packets that have had their transmission aborted by the source device. When the destination device receives data packets including these identifiers and the identifiers identify data packets that the destination device has yet to receive, the destination device will proceed as if the identified data packets have been re-sequenced.

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 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.

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.

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.