57results about How to "Control on time" patented technology

The invention relates to the technical field of air conditioners, particularly provides an air conditioner degerming control method, and aims to solve the problems that when an air conditioner performs degerming operation indoors, a user cannot intuitively improve the degerming effect after a degerming module is started, so that the starting time of the degerming module is prolonged, energy waste is caused, and the service life of the degerming module is shortened. In order to achieve the purpose, the air conditioner sterilization control method comprises the steps that in response to a received sterilization instruction, an air conditioner is controlled to sequentially enter a first sterilization stage and a second sterilization stage to execute sterilization operation of a first sterilization duration and a second sterilization duration correspondingly; and controlling the air conditioner to respectively display a first sterilization effect icon corresponding to the first sterilization stage and a second sterilization effect icon corresponding to the second sterilization stage in the first sterilization stage and the second sterilization stage. By means of the method, the sterilization effect can be visually achieved, the starting time of the sterilization module is shortened, energy is saved, the service life of the sterilization module is prolonged, and the use experience of a user is further improved.

The invention discloses a control system and a control method of an intelligent vacuum degassing machine, . The control system comprises a controller, degassing tank, a booster tank pump, a water inlet pipeline, a first water outlet pipeline and a second water outlet pipeline; the water inlet of the degassing tank is connected to the water outlet of the water circulation system through the water inlet pipeline; the water outlet of the degassing tank is connected to the booster tank pump through a first outlet pipeline; one end of the second water outlet pipeline is connected to the booster pump; the other end of the second water outlet pipeline is connected to the external water circulation system; the water inlet pipeline is provided with a solenoid valve and a temperature sensor; the intelligent vacuum degassing machine is provided with a real-time online gas monitoring device, a pressure sensor and a liquid level sensor; the solenoid valve, the temperature sensor, the real-time online gas monitoring device, the pressure sensor and the liquid level sensor are electrically connected to the controller; and the controller performs control on the system through the high efficiency automatic control mode and the energy saving automatic control mode. The control system and control method can realize online and intelligent control on the gas, the temperature and the pressure.

The invention discloses a movement component coordination action control method, device and system. The movement component coordination action control method comprises the steps that a preparation current lower than an activate current threshold acts on each electric proportional control valve of a multi-way valve so that each electric proportional control valve of the multi-way valve can be in a preparation state; in the preparation state, a control current not lower than the activate current threshold acts on each electric proportional control valve of the multi-way valve so that each electric proportional control valve can respond; the electric proportional control valves control corresponding driving oil cylinders to act, and then movement components driven by the driving oil cylinders are controlled to act. The invention further discloses the device and system for realizing the movement component coordination action control method.

The invention discloses a series system of three direct current motors and a torque control method. The rotational speed deviation is generated through a PI regulator to generate three current reference signals; the armature currents of three direct current motors are obtained through current sampling and calculation; the three current reference signals are The signal uses the reference torque synthesis algorithm to synthesize four-way reference torque; the armature current of the three DC motors uses the feedback torque synthesis algorithm to become four-way synthetic feedback torque; the four-way torque reference signal and the four-way torque feedback signal The deviations of the four torque hysteresis controllers are respectively input to the reverse input terminals of the four-way torque hysteresis controller, and output a square wave signal whose amplitude upper limit and lower limit are inverse numbers; the torque hysteresis controller is converted to The adjusted signal is generated by PWM to generate four pairs of two-two complementary level signals, which are input to the four-leg eight-switch inverter to realize the independent four-quadrant operation of three DC motors connected in series. The invention simplifies the system and improves the stability and response speed of the system.