267results about How to "Increase operating frequency" patented technology

A system and integrated circuit chips used in the system utilize a bus in the form of a ring to interconnect nodes of individual components for transfer of data and commands therebetween. An example system described is a memory having one or more re-programmable non-volatile memory cell arrays connected to each other and to a system controller by a ring bus.

The invention discloses an air conditioner and an oil return control method and device thereof. The oil return control method includes the steps of judging whether the operation condition of the air conditioner meets a preset condition which is used for triggering the air conditioner to start an oil return program, and controlling the air conditioner to start the oil return program under the condition that the operation condition of the air conditioner is judged to meet the preset condition so that oil return operation, at least comprising increasing of the operation frequency of a compressor of the air conditioner, can be executed. The technical problems that in the prior art, due to improper oil return of the compressor, the lubricating effect is poor, and abrasion of the compressor is high are solved.

A method for controlling a start-up operation of an air conditioner having a compressor and an indoor and an outdoor fan includes the steps of: (a) calculating indoor cooling / heating load; (b) calculating a reference operating frequency of the compressor; (c) driving the indoor and the outdoor fan during a first time period to thereby adjust pressure equilibrium between an indoor and an outdoor pressure; (d) driving the compressor during a preset time period while increasing an operating frequency of the compressor; and (e) setting the operating frequency of the compressor to the reference operating frequency and driving the compressor. The operating frequency of the compressor is increased in a stepwise manner during the preset time period and kept to be lower than the reference operation frequency throughout the preset time period.

The invention provides a control method used for frequency adjusting of an air conditioner compressor and a refrigerator. The method comprises the steps of obtaining outdoor environment temperature ofenvironment where an outdoor unit of an air conditioner is located, and according to the outdoor environment temperature, determining the exhaust target temperature of the compressor; obtaining the starting event of the compressor, and controlling the compressor to run at the initial frequency; detecting the exhaust temperature of the compressor, and determining the temperature rise speed of theexhaust temperature; after the preset compressor adjusting time is achieved, judging whether the temperature rise speed is larger than the preset first speed threshold value or not; if not, increasingthe compressor running frequency to the set frequency value, and returning to execute detection of the exhaust temperature again, and determining of the temperature rise speed until the exhaust temperature is larger than the exhaust target temperature. The running frequency of the compressor can be improved only when the condition that the rising speed of the exhaust temperature is smaller than the first speed threshold value is met, and the oscillating of the running frequency of the compressor can be well avoided.

An apparatus and method for controlling train speed are disclosed, the method including receiving an operation data, estimating a future train speed subsequent to a predetermined time of the train, using the operation data and dynamics model of a train, calculating a TTSLC {Time-To-Speed-Limit Crossing, a time when the train exceeds an ATP (Automatic Train Protection) speed limit}, and outputting a deceleration command by determining an additional braking force, in a case the TTSLC is smaller than a predetermined threshold.