304 results about "Stopped periods" patented technology

When an engine restart request is given in an engine stopping period which begins at a point of fuel supply interruption and ends at a point of complete engine stop, an engine starting system judges whether TDC engine speed detected immediately before is equal to or lower than a specific value “A”, the counted number of reverse running motions of the engine is 0, and a piston in an expansion stroke cylinder is relatively close to TDC. If the judgment result is in the affirmative with all these conditions satisfied, the engine starting system injects fuel into the expansion stroke cylinder and then ignites and combusts a mixture produced therein. The engine starting system also injects the fuel into a compression stroke cylinder and then ignites and combusts a mixture produced therein when a piston in the compression stroke cylinder has gone beyond TDC.

A film forming apparatus for forming a film on an object includes: a processing container; gas supply means, having gas jet ports, respectively; a holding means for holding the object; a drive mechanism for moving the holding means relative to the gas jet ports; and a control means which, when repeating P times a cycle, consisting of a supply period for supplying a gas and a supply stop period during which the supply of the gas is stopped, performs control so that as viewed from the center of the object, a gas supply starting position is sequentially shifted in the circumferential direction of the object for every cycle in such a manner that the entire circumference of the object to be processed is divided into K segments (K=P), K being an arbitrary division number, and the gas supply starting position is shifted by one segment for every cycle.

A fixing control device includes a power distribution controller that adjusts a power distribution time period when the power is distributed to plural heater elements per control cycle, a turn on time determining member that determines a time when each of the plural heater elements is turned on based on a duty ratio between the power distribution time period and the control cycle, and a soft operation controller that either gradually starts or stops heating each of the plural heater elements during a soft start or stop period, respectively. One of the soft start and stop periods for one of the plural heater elements is decreased not to overlap with another one of the plural heater elements.

A charging operation controlling portion controls charging current or charging voltage when the battery pack 440 is charged with electric power generated by the solar panel 410. The current detecting portion 456 detects charging current of the battery pack. The voltage detecting portion 455 detects battery voltage of the battery pack. The charging operation controlling portion, when the battery pack 440 is brought close to the fully-charged state, cuts off the charging current at predetermined timing for a charging operation stop period, and compares the battery voltage of the battery pack 440 with a predetermined voltage value as a restart voltage value in the charging operation stop period. The charging operation controlling portion determines that the battery pack 440 is fully charged if the battery voltage of the battery pack 440 is not less than the predetermined voltage value as the restart voltage value, and cuts off the charging current.

The invention discloses a control method for a frequency conversion compressor. The method includes the steps that when the rotation speed of the compressor needs to be adjusted, the average value of start rates corresponding to all start and stop periods of the compressor is calculated before the rotation speed of the compressor is adjusted, and the average start rate is acquired; according to the average start rate and a preset compressor target start rate corresponding to the current environment temperature, the adjusting proportion of the rotation speed of the compressor is calculated; according to the adjusting proportion of the rotation speed of the compressor and the rotation speed of the compressor in the start and stop period before the rotation speed of the compressor is adjusted, the adjusted rotation speed of the compressor is calculated; and according to the adjusted rotation speed of the compressor, the compressor is controlled to operate. The invention further discloses a refrigerator adopting the control method for the frequency conversion compressor to achieve the frequency conversion function. Through the control over the rotation speed of the compressor, the start duration and the stop duration of the compressor can be effectively controlled, and the beneficial effects that noise is lowered and energy is saved can be achieved.

The invention relates to a non-stationery vibration signal instantaneous frequency estimation algorithm in a start and stop period of rotating machinery; firstly, an experiment table working model of a rotor of the rotating machinery is built, a non-stationery vibration signal sensor for measuring vibration signal, and a photo-electric sensor for measuring the rotating speed of a reference axis are arranged along the horizontal and vertical direction of the reference axis; after the obtained signal is analyzed by an order analysis software of an upper computer through a dynamic signal analyzer, STFT time-frequency spectrum containing multi-level component is obtained; the working frequency of the rotating machinery is used as an estimated starting frequency point, according to the requirements of sampling frequency and calculation accuracy, the frequency obtained by the STFT time-frequency analysis is equally divided into M groups, the start and stop period is equally divided into N time points for building grid meshes of N time points and M groups of frequency points; the route of minimum-deviation frequency point from the start point to the stop point is computed through Viterbi algorithm, after fitting is carried out, the instantaneous frequency estimation function value of the reference axis of the non-stationery vibration signal of the rotating machinery in the start and stop period is obtained.

A fuel cell system (100) comprising: a fuel cell (1) configured to generate electric power using an oxidizing gas and a fuel gas; a recovered water tank (3) configured to store water recovered from an exhaust gas discharged from the fuel cell; a water storage tank (4) configured to store water used as cooling water for cooling the fuel cell; a water feed flow path (g) through which the water stored in the recovered water tank is supplied to the water storage tank; a pump (8) configured to force water to flow from the recovered water tank to the water storage tank within the water feed flow path; a water purifier (7) configured to purify the water forcibly flowed by said pump in the water feed flow path by means of a built-in TOC absorber (7a) before the water is supplied to the water storage tank; and a controller (101), wherein the controller controls the pump so as to operate in a stop period of the fuel cell system such that water moves in the water feed flow path.

A lighting fixture that suppresses blinking and flickering phenomena even when operating at very low luminance levels includes: a light source including at least one solid state light-emitting element; and a lighting driver circuit controlling the light source in accordance with a control signal. The lighting driver circuit includes an isolating flyback circuit and a control circuit. The isolating flyback circuit switches power from a DC power source and smooths the output. The control circuit controls switching operation performed by a switching element of the isolating flyback circuit via PWM signal. The control circuit provides a frequency component in accordance with the control signal to a reference signal outputted by a reference signal generator. In accordance with results of detection of the reference signal and a current flowing through the light source, the control circuit provides a stop period during which a driver controller driving the switching element is stopped.

A hybrid vehicle includes an internal combustion engine; a rotating electrical machine that rotates an output shaft of the internal combustion engine; and a control unit that performs automatic stop control for the internal combustion engine. The control unit causes the output shaft to rotate using the rotating electrical machine, when a stop period of the internal combustion engine according to the automatic stop control is equal to or longer than a first period.

The invention provides a flexible control device for pneumatically conveying tobacco shreds and a control method, which starts a tobacco shred pneumatic conveying system in a soft start manner to reduce the break rate of the tobacco shreds when starting. After started, the device directly measures and controls the tobacco conveying speed, and combines the flexible control manner, to make the tobacco shreds in a horizontal pipeline to generate continuous and stable dense phase flow, thereby reducing the break rate in the pneumatic conveying process, and reducing the energy consumption of the pneumatic conveying system. In the dormant period and stopping period in the tobacco shred conveying process for a cigarette making machine, the wind complementing and regulating valve is controlled to complement wind by simulating the shred conveying condition for stabilizing the pressure and the wind amount in a dust removing pipe, and then the wind complementing and regulating valve is finely regulated by measuring the pressure in the dust removing pipe to increase or reduce the wind complementing flow amount for further stabilizing the pressure in the dust removing pipe, thereby greatly reducing the pressure fluctuation cased by intermittence, randomness and temporary stoppage in the tobacco shred conveying process in the tobacco shred pneumatic conveying system.

In a valve timing control apparatus configured to execute phase-control via a phase converter, a controller is configured to control a phase angle of a camshaft relative to a crankshaft during an engine stopping period to a target phase angle differing from a required phase angle suited for an engine operating condition. The controller is further configured to change the phase angle of the camshaft toward the required phase angle during a time period from a point of time when cranking starts to a point of time when detection of a rotational position of the camshaft initiates during an engine restarting period. The controller is still further configured to start feedback-control for the phase angle of the camshaft from the point of time of initiation of detection of the rotational position of the camshaft for bringing the phase angle of the camshaft closer to the required phase angle.

While directional communication using millimeter waves is realized, the number of communication stations through which simultaneous communication is possible is increased to increase the throughput of the entire system.

A communication apparatus stores, as a stop setting person direction, a beam direction in which received electrical power when an RTS or a CTS destined for another station is received becomes a maximum and then sets a transmission stop period. Within the transmission stop period, only when the direction of a frame transmission destination is separate from the stop setting person direction, transmission of frames is performed by directing a transmission beam toward the frame transmission destination. Whereas a hidden terminal does not unnecessarily stop a frame transmission operation, the hidden terminal is not against the intention of requesting the setting of the transmission stop period.

A suction muffler for a reciprocating hermetic compressor mounted inside a hermetic shell (1), said suction muffler comprising a hollow body (20) defining at least one acoustic chamber and provided with a gas inlet (22) connected to a suction line (9) by means of a tubular connector, and with a gas outlet (32) connected to a suction valve (8b) of the compressor, said equalizing chamber (60) being provided, on one side, with an opening (60a) to the interior of the hermetic shell (1) and, on the other side, with a fluid communication (61) with the acoustic chamber, said equalizing chamber (60) being dimensioned to minimize, simultaneously, the noises of the gas pulses inside the suction muffler, the mixture of said gas with that contained inside the hermetic shell (1), and the pressure differential between the interior of the latter and the suction line (9), upon operation of the compressor after a stop period.