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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 10. Отображено 10.
06-02-2013 дата публикации

Hydraulic system as well as power distribution method and power distribution device thereof

Номер: CN102913332A
Принадлежит:

The invention provides a hydraulic system, as well as a power distribution method and a power distribution device thereof. The power distribution method of the hydraulic system includes steps as follows: acquiring a target rotating speed and an actual rotating speed of an engine; performing the rotating speed sensitivity control on the engine according to the deviation between the target rotating speed and the actual rotating speed, and stabilizing the rotating speed of the engine at the target rotating speed; and according to a preset distribution scheme, distributing the target output power corresponding to the target rotating speed to a plurality of variable capacity pumps. After the technical scheme provided by the invention is applied, the hydraulic system ensures that the engine operates at an optimal operation point through the rotating speed sensitivity control according to the operation environment of the engine, avoids the phenomenon of rapid rotating speed decrease, and distributes ...

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22-01-2014 дата публикации

Engineering machine heat radiating control device, system and method and engineering machine

Номер: CN103527566A
Принадлежит:

The invention discloses an engineering machine heat radiating control device, system and method and an engineering machine. The engineering machine comprises a heat radiator, a motor and a hydraulic pump. The engineering machine heat radiating control device comprises a receiving device and a control device body, wherein the receiving device is used for receiving the temperature T of hydraulic oil, if the T is lower than or equal to a first preset temperature t1, the control device adjusts the rotation speed of the heat radiator according to the lowest rotation speed, if the T is higher than or equal to a sixth preset temperature t6, the control device adjusts the rotation speed of the heat radiator according to the highest rotation speed, and if the T is higher than the t1 and lower than the t6, a first control curve is determined inside a loop area according to the T, and the control device adjusts the rotation speed of the heat radiator according to the first control curve. If the temperature ...

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09-01-2013 дата публикации

Flat-pushing control method and device of excavator and excavator

Номер: CN102864800A
Принадлежит:

The invention provides a flat-pushing control method and device of an excavator and the excavator. The flat-pushing control method of the excavator comprises: controlling a bucket rod cylinder to push a bucket to operate according to control instructions of operators; acquiring gesture changing of a bucket rod in real time; and performing feedback control on oil-inlet amount of a movable arm cylinder according to the gesture changing of the bucket rod so as to enable a bucket to be at the preset height. In flat-pushing operation, the operators of the excavator give out cylinder extending orders to the bucket rod cylinder by controlling an operation device of the bucket rod and perform feedback control on the movable arm cylinder according to the bucket rod gesture measured in real time, so that the inclined angle formed by a movable arm and the horizontal plane and the inclined angle formed by the movable arm and the bucket rod change in matching mode, changing of the movable arm is used ...

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06-02-2013 дата публикации

Excavator as well as control method and control device thereof

Номер: CN102912817A
Принадлежит:

The invention provides an excavator as well as a control method and a control device thereof. The control method for the excavator comprises the following steps of: obtaining the rotating angle of the excavator and the included angle between a movable arm and a frame in real time; obtaining the required movement of a hydraulic actuator of the excavator according to the numerical ranges of the included angle and the rotating angle; and sending a control instruction corresponding to the movement to the hydraulic actuator. According to the actual working condition, the coordinated movement conditions for the movable arm and rotation can be realized by utilizing the preset matching relation between the movement of the hydraulic actuator and the included angle and the rotating angle so as to meet the requirement for coordinated movement of the actual working condition, realize the coordinated control on an oil cylinder of the movable arm and a rotary motor, and real-time manipulation of operating ...

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06-02-2013 дата публикации

Control method and control device for excavator and excavator

Номер: CN102912816A
Принадлежит:

The invention provides a control method and a control device for an excavator and the excavator. The control method for the excavator comprises the following steps of: measuring the rotating angle of the excavator and the lifting height of a movable arm in real time; obtaining the target lifting height corresponding to the measured rotating angle by querying according to the preset mapping relation between the rotating angle and the lifting height of the movable arm; and controlling hydraulic flow of a rotary motor and a hydraulic cylinder of the movable arm according to the difference between the measured lifting height of the movable arm and the queried target lifting height so as to enable the rotating speed to be matched with the movement speed of the movable arm to realize the coordinated movement of rotation and lifting of the movable arm, and automatic operation of movement can be realized only by selecting the appropriate mapping relation according to the actual working condition ...

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27-03-2013 дата публикации

Engineering mechanical equipment as well as method, device and system for controlling rotation speed of engine of engineering mechanical equipment

Номер: CN102996265A
Автор: Wang Ke, Shan Xiaoning
Принадлежит:

The invention provides engineering mechanical equipment as well as a method, a device and a system for controlling the rotation speed of an engine of the engineering mechanical equipment. The method comprises the steps of obtaining the actual rotation speed of the engine of the engineering mechanical equipment, detecting whether the difference value of subtracting the actual rotation speed from the target rotation speed of the engine is greater than a preset threshold value, if so, determining the gear where an accelerator knob is positioned currently, and controlling the current of a pump proportional valve to be a preset current value corresponding to a low gear if the accelerator knob is positioned at the low gear. The problem of engine flameout caused by the reason that the speed of the engine is lower than the target speed is effectively solved, and the performance and the service life of the engine are ensured.

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01-05-2013 дата публикации

Engineering machine heat dissipation control system, control method and excavator

Номер: CN103074914A
Принадлежит:

The invention discloses an engineering machine heat dissipation control system, an engineering machine heat dissipation control method and an excavator. The engineering machine heat dissipation control system comprises a receiver (11) and a controller (12); the receiver is used for receiving the temperature value T of hydraulic oil; the controller comprises at least two heat dissipation control modes, and is used for determining a corresponding heat dissipation control mode according to the temperature value T of the hydraulic oil and adjusting the heat dissipation power of a radiator (13) according to the temperature value T of the hydraulic oil under the determined heat dissipation control mode. The engineering machine heat dissipation control method comprises the following steps that the temperature value T of the hydraulic oil is received; and the heat dissipation power of the radiator (13) is adjusted according to the temperature value T of the hydraulic oil under the determined heat ...

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11-12-2013 дата публикации

Engineering machine intelligent fault diagnosis system and method and engineering machine

Номер: CN103439944A
Принадлежит:

The invention discloses an engineering machine intelligent fault diagnosis system and method and an engineering machine. The engineering machine intelligent fault diagnosis system comprises a vehicle-mounted main controller and a fault diagnosis device, wherein the vehicle-mounted main controller is used for collecting and outputting work state parameters of the engineering machine, and the fault diagnosis device is used for receiving the work state parameters and carrying out fault diagnosis on the engineering machine according to the work state parameters. By means of the technical scheme, the vehicle-mounted main controller inside a cab in the engineering machine can be directly used for collecting the work state parameters for the fault diagnosis, a single-chip microcomputer or other control devices are not required to be additionally arranged for collection, the cost is low, the development period is short, the fault diagnosis can be effectively carried out on the engineering machine ...

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14-11-2012 дата публикации

Overload protection control equipment, method and system as well as engineering machine

Номер: CN102777272A
Принадлежит:

The invention discloses overload protection control equipment, method and system for a power output device as well as an engineering machine comprising the system. The power output device comprises an engine and a hydraulic pump driven by the engine; the control equipment comprises a receiving device and a control device; the receiving device is used for receiving at least one of cooling liquid temperature, air inlet temperature and hydraulic oil temperature of the hydraulic pump; and the control device is used for reducing current of the hydraulic pump when any one of the cooling liquid temperature, the air inlet temperature and the hydraulic oil temperature of the hydraulic pump is greater than a pre-set value. According to the overload protection control equipment, method and system for the power output device as well as the engineering machine comprising the system, the absorption power of the pump is reduced so as to prevent the stalling of the engine.

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06-02-2013 дата публикации

Windscreen wiper, control method and controller of windscreen wiper, wiper system and automobile

Номер: CN102910150A
Принадлежит:

The invention discloses a windscreen wiper for window glass, which at least comprises a first wiper component (1), a second wiper component (2) and a switch (5), wherein the first wiper component and the second wiper component are arranged on the upper and lower sides of the window glass oppositely and driven by a first wiper motor (3) and a second wiper motor (4) respectively; and the switch is used for controlling the first wiper motor and the second wiper motor, and can be arranged at a high-speed, low-speed or resetting gear. The invention further provides a control method and a controller of the windscreen wiper, a wiper system and an automobile. With the adoption of the technical scheme, the wiping area is increased, the wiping efficiency and wiping effect are improved, and the visual field is wider. According to the control provided for the windscreen wiper, the pair of opposite windscreen wiper components does interfere with each other in the wiping process.

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