37results about How to "Optimize Energy Efficiency Ratio" patented technology

The invention discloses an air conditioner control method. The method comprises the following steps that current working condition parameters of an air conditioner are obtained, wherein the current working condition parameters include the current environment parameter and the current set parameter of the air conditioner; target operating parameters are obtained according to a plurality of historical operating parameters corresponding to the current working condition parameters and a first energy efficiency ratio corresponding to the multiple historical operating parameters; and the air conditioner is controlled to operate at the target operating parameters. The invention further discloses the air conditioner and a computer readable storage medium. By means of the air conditioner control method, the air conditioner and the storage medium, the energy efficiency ratio of the air conditioner can be optimized.

The invention discloses an air conditioner, comprising an outdoor heat exchanger, a compressor, a four-way valve, an indoor heat exchanger, and a throttling device. Flow devices are sequentially connected by pipelines to form a circulation path; the throttling device includes throttling passages matching different flow rates, and one of the throttling passages is a rapid cooling and heating passage; the air conditioner also includes an indoor ambient temperature sensor and a The temperature sensor is electrically connected to the controller; the controller gates the corresponding throttling channel according to the temperature change detected by the indoor temperature sensor. The invention also discloses a control method of the air conditioner. The invention not only satisfies the requirement of APF, but also satisfies the requirement of fast cooling and heating.

The invention discloses a pure electric automobile as well as a control method and a control device for a cooling system thereof. The control method for a cooling system comprises the following stepsof carrying out heat production analysis on each heat source in at least one heat source in an automobile so as to obtain the temperature of each heat source at a future preset time; obtaining the current outdoor environment temperature and the current automobile speed of the automobile and obtaining a plurality of cooling capacity values of the cooling system at different states from a preset cooling capacity table according to the current outdoor environment temperature and the current automobile speed; and controlling the cooling system according to the plurality of cooling capacity valuesand the temperature of each heat source at the future preset time. And therefore, the energy efficiency ratio of the cooling system of the pure electric automobile can be optimized to achieve active energy saving so that a purpose of increasing the endurance mileage of the electric automobile is achieved.

Provided is a control method for an electronic expansion valve in air conditioner comprises: obtaining a real-time running frequency of compressor, a real-time exhaust temperature and a real-time outdoor environment temperature as the compressor running; retrieving a target exhaust temperature according to the real-time running frequency in a preset relation in which each available target exhaust temperature is paired with a single real-time running frequency, wherein the target exhaust temperature retrieved being defined as a first target exhaust temperature; defining a sum of the first target exhaust temperature and a set compensation temperature as a second target exhaust temperature, wherein the set compensation temperature is determined by the real-time outdoor environment temperature; and performing a PID control on opening amount of the electronic expansion valve based on a deviation that is a difference between the real-time exhaust temperature and the second target exhaust temperature. The method achieves an accurate and stable control on opening amount of electronic expansion valve in air conditioner.

The invention provides a hot water cascade heating preparation system that realizes deep recovery of condensation heat in a cold storage, including a refrigeration unit, an electric compression heat pump, a hot water storage tank, a circulating water pump, a high-temperature plate heat exchanger, a low-temperature plate heat exchanger, and auxiliary electric heater. The system includes three operating conditions, the three operating conditions include waste heat recovery heating operating conditions, electric compression heat pump maintenance operating conditions and non-heating operating conditions. When in use, an appropriate heat source can be selected according to the hot water temperature requirement, and a cascaded heating system with matching temperature can be constructed. This system can realize the deep recovery of condensation heat in the cold storage for the preparation of hot water. On the one hand, it can significantly reduce the boiler gas consumption and reduce the production cost in the factory. On the other hand, it can improve the cooling capacity of the condensing system, thereby improving the energy efficiency of the refrigeration system. Compare.

The invention provides an adjustable type vehicle body, a center-of-gravity type rock breaking machine and a rock breaking method, and belongs to the field of mechanical rock breaking in the field of engineering machinery, which mainly solves the problems of failure to fully use self weight to enhance lower shearing force of mechanical working and loss of unnecessary energy in the existing rock breaking machine. The adjustable type vehicle body, the center-of-gravity type rock breaking machine and the rock breaking method are mainly applied to the construction engineering of rocks on medium-solid and solider rock strata. The adjustable type vehicle body is provided with a hollow part which penetrates through the adjustable type vehicle body from top to bottom, and comprises a power part, a hydraulic part, a control part, a walking mechanism and an adjusting assembly, wherein the adjusting assembly is used for adjusting the width of the adjustable type vehicle body. The center-of-gravity type rock breaking machine comprises the adjustable type vehicle body and a rock arm, wherein the rock arm penetrates through the hollow part to break rock. The adjustable type vehicle body has the advantages that rock can be broken by fully utilizing the weight of the whole machine in the working process, the vehicle body is stable, and the energy consumption is low; the size of the vehicle body is adjusted according to the actual conditions of an operation site, the application range is wide, and the transportation is convenient.

The invention discloses an option pricing calculation hardware accelerator, an accelerator card and computer equipment. The option pricing calculation hardware accelerator of the invention includes a Gaussian random number generator, a multiplier m2, an adder a2, an EXP module, a multiplexer MUXA, Multiplex its MUXB, multiplier m5, subtractor s0, comparator, delay module delay, accumulator, shifter and multiplication array, through the combination of the above components, it is possible to simulate a Monte Carlo in M ​​clock cycles The path is iterated to complete the prediction of the option execution price SM once. In order to reduce hardware resource consumption and circuit complexity, 64-bit floating-point operations are converted into fixed-point operations; the accelerator card is a board including the aforementioned hardware accelerator, and the computer equipment is equipped with the aforementioned option pricing calculation hardware accelerator. The present invention can realize Monte Carlo option pricing calculation hardware acceleration without pause, and the entire calculation process is fully streamlined, and has better performance and energy efficiency ratio compared with CPU and GPU implementations under the same process.