49results about How to "Reasonable control method" patented technology

The invention discloses a cruise control system for a manual transmission automobile and a control method based on the cruise control system. The cruise control system is used for carrying out closed-loop control on a cruise target speed by taking an ignition switch, a cruise request switch and a cruise acceleration/deceleration switch as basic input signals of an intention of a driver, taking a gear signal, a brake switch signal, a clutch switch signal, an accelerator pedal signal and the like as auxiliary input signals and taking an automobile speed signal as a main input signal through controlling the opening of a throttle (the output torque of an engine is controlled by controlling the air inflow), thus realizing the cruise control function of a vehicle. The system and the control method disclosed by the invention are simple in structure, reasonable in control method and safety and reliable to operate.

The invention provides a control method and a control device of an air conditioner. The control method comprises the following steps: judging whether the outdoor environmental temperature is smaller than a first preset temperature when the air conditioner operates in a heating mode; if the outdoor temperature is smaller than the first preset temperature, detecting whether people are indoor or not; if people are indoors, controlling the air conditioner to enter in a first defrosting mode so as to defrost an outdoor unit of the air conditioner; and if people are not indoor, controlling the air conditioner to enter in a second defrosting mode so as to defrost the outdoor unit of the air conditioner. According to the control method and the control device of the air conditioner provided by the invention, different defrosting modes are selected according to whether people are indoor or not, and human factors are considered. Compared with the prior art, the temperature factor of an outdoor heat exchanger is only considered. The control method provided by the invention is more reasonable.

The present invention belongs to the technical field of a vehicle power system and relates to an internal-combustion engine fuel supply technology. The present invention discloses a vehicle methanol pyrolysis gas device which is arranged at the exhaust pipeline of an engine that means a pyrolysis gas device casing is one part of the exhaust pipeline. The two ends of the pyrolysis gas device casing are provided with a front exhaust pipe and a back exhaust pipe. The high-temperature exhausted by an engine cylinder enters into the pyrolysis gas device casing through the front exhaust pipe and is exhausted from the back exhaust pipe. After the technical proposal is adopted, the thermal value after the reaction is higher, and dynamic performance is kept at higher level, which improves automobile exhausting performance and fuel economic performance and satisfies the running power requirement of the whole vehicle. The present invention has simple structure and convenient use, which solves the problem of using reproducible energy source to substitute oil fuel, is better for relieving the intense situation of oil energy source and is cleaner and more protective to environment. The vehicle methanol pyrolysis gas device has reasonable control method and the flexible conversion of working states.

The invention discloses an electric air conditioning system of an electric automobile. The electric air conditioning system comprises a compressor, a four-way valve, an exterior heat exchanger, a two-way expansion valve, an internal heat exchanger and a gas-liquid separator, wherein gas distributors are respectively arranged at the gas connecting ends of the exterior heat exchanger and the internal heat exchanger; the gas distributor of the exterior heat exchanger is connected with a refrigeration flow opening of the four-way valve; the gas distributor of the internal heat exchanger is connected with a heating flow opening of the four-way valve; liquid distributors are respectively arranged at the liquid connecting ends of the exterior heat exchanger and the internal heat exchanger; the liquid distributor of the exterior heat exchanger is connected with a port of the two-way expansion valve; the other port of the two-way expansion valve is connected with the liquid distributor of the exterior heat exchanger. According to the electric air conditioning system disclosed by the invention, not only can refrigeration and heating be realized on the electric automobile, but also the heat exchange efficiency can be improved, and the refrigeration and heating effect of the electric air conditioning system is improved. In addition, the invention also discloses a control method to realize the intelligent operation of the electric air conditioning system.

The invention discloses a muck improving control method and system based on shield tunneling parameter change. The muck improving control method comprises the following steps: a soil bin pressure value and a cutterhead torque value for shield tunneling are obtained in real time, whether the soil bin pressure value and the cutterhead torque value for shield tunneling meet a first condition or not is judged, if the soil bin pressure value and the cutterhead torque value for shield tunneling meet the first condition, it is judged that currently-used tunneling parameters and improving parameters are suitable for a current tunneling formation condition, if the soil bin pressure value and the cutterhead torque value for shield tunneling does not meet the first condition, it is judged that the currently-used tunneling parameters and improving parameters are not suitable for the current tunneling formation condition, and the improving parameters and the tunneling parameters are adjusted till the improving parameters and the tunneling parameters are suitable for the current tunneling formation condition. By adjusting the improving parameters based on the shield tunneling parameter change, the improving parameters suitable for a corresponding formation are obtained, unimproved muck does not need to be obtained again for testing in the period, and the problems that in the tunneling process, muck taking is difficult, the difference between an actual formation condition and obtained muck is large, and consequently determined improving parameters are not reasonable are avoided.

A control method for preheating and roasting processes during the production of a traveling grate machine belongs to the technical field of the control of the pellet production through the traveling grate machine. The invention aims to provide a judgment and control method for preheating and roasting processes during the pellet production process via the traveling grate machine. The method comprises the following steps: carrying out regression fitting of the exhaust temperatures all bellows in a burner section and two bellows behind the burner by utilizing a least squares method so as to obtain a 6-time temperature curve, wherein the X-axis represents the positions of the detection points, and the Y-axis indicates the temperatures of the detection points; carrying out derivation for a curvilinear equation so as to obtain a slope equation, wherein the X-axis value of the maximal slope point is the preheating termination point which is the reference for the quantitative partition of the preheating and the roasting; and based on the obtained preheating termination point, automatically adjusting the rotational speed of a main induced-draft fan according to the set value of the preheating termination point so as to realize the automatic control of the preheating termination point. According to the invention, the pellet production through the traveling grate machine is stable and the pellet quality is improved.

The invention discloses a washing machine control method. A washing machine has a local machine control mode for controlling the washing machine when a local machine end inputs a control instruction and a remote control mode for remotely controlling the washing machine when an intelligent terminal inputs a control instruction. When the remote control mode is started, after the washing machine receives a pause instruction during running, the remote control mode is controlled to be started or stopped according to the control mode corresponding to the pause instruction and working state parameters of the washing machine. The washing machine adopting the method is also disclosed at the same time. According to the washing machine control method, the remote control mode is controlled to be started or stopped according to the control mode corresponding to the instruction and the state parameters of the washing machine; the control method is more reasonable and applicable to the field of washing machines on the basis of the Internet of Things, the safety of the washing machines on the basis of the Internet of Things during remote control can be effectively ensured, occurrence of safety accidents is avoided, and convenience is also provided for enhancing the control effect of the remote control mode.

The invention discloses a fan coil anti-freezing control method and system and an air conditioner. The anti-freezing control method comprises the following steps: a temperature detecting step: the environment temperature is detected in a stop state; and when the environment temperature is lower than a first threshold, the water outlet temperature and the water return temperature of a fan coil aredetected; a judging step: the lowering and the lowering degree of the water temperature are judged according to the water outlet temperature and the water return temperature; and a control step: the startup and operation states of a water pump are controlled according to the judging results of the lowering and the lowering degree of the water temperature. At a low temperature, the lowering and thelowering degree of the water temperature are judged through detection of the water outlet temperature and the water return temperature of the fan coil, and the startup and operation states of the water pump are correspondingly controlled according to the lowering and the lowering degree, so that water cannot be frozen as ice when the water in a heat exchange tube of the fan coil can flow, the frost cracking problem of the fan coil is solved, the service life of the fan coil is prolonged, and the control method is reasonable and effective.

The invention discloses a process for preparing pyrogallol through coupled heating, which comprises using gallic acid as raw material, carrying out intermittent process flows including drying, sublimation, cooling down crystallization and vacuum decarboxylation with a totally coupled heating system and a semi-coupled cooling system, thus the pyrogallic acid can be crystallized and separated.

The invention discloses a variable vibration fuel cell water management system and a control method thereof. The system comprises a variable vibration device and a fuzzy controller, the variable vibration device comprises a plurality of spring lifting tables with electric damping springs, a vibrator lifting table with a vibrator and a placement seat located above the spring lifting tables and the vibrator lifting table, a fuel cell stack is positioned and installed on the placement seat through a positioning piece, the electric damping springs are connected with the fuzzy controller through a damping spring control wire harness, the vibrator is also connected with the fuzzy controller through a vibrator control wire harness, and the fuzzy controller can control the vibrator to vibrate and enable the fuel cell stack to ascend and descend by controlling the electric damping spring to act. The system has the beneficial effects that: the structural design is ingenious, the control method is reasonable, the problem of water logging in the fuel cell stack caused by vibration of the fuel cell under the complex road condition is effectively solved, the vibration stability of the fuel cell under the complex road condition is ensured, and the performance of the fuel cell is also improved.

The invention provides an electric automobile electro-hydraulic composite braking system based on hub motor driving and a front and rear axle braking force distribution method. The electric automobile electro-hydraulic composite braking system comprises a hydraulic friction braking module, a motor regenerative braking module, an energy management module and a whole automobile control module. The hydraulic friction braking module comprises a whole automobile control unit, a drive-by-wire hydraulic braking force distribution control unit, an electromagnetic valve and the like; the motor regenerative braking module comprises a hub motor, a motor controller and a rotating speed sensor; and the energy management module comprises a battery management system and a power battery. In the braking process of the automobile, a sensor detects the required braking strength of the automobile and the state information of the automobile, and the whole automobile control unit distributes the electro-hydraulic composite braking force through the hydraulic friction braking module and the motor regenerative braking module. Meanwhile, the invention provides an electro-hydraulic composite braking front and rear axle braking force distribution method, safety areas of front and rear axle braking force distribution beta' and beta'' lines are given, the tendency that rear wheels of the automobile are locked first is reduced, and the braking safety of the automobile is improved.

The invention discloses a control method for a discharging device, and relates to the technical field of material separation devices. The discharging device comprises a shell and a feeding inlet in the upper portion of the shell, and a plurality of discharging outlets are formed in the lower portion of the shell; a plurality of transfer assemblies are arranged on the side, close to the feeding inlet, in the shell, and the transfer assemblies can rotate to transfer materials; a plurality of swing assemblies are arranged on the side, close to the discharging outlets, in the shell, the swing assemblies can swing so as to change the moving directions of the materials which are transferred by the transfer assemblies, and any one discharging outlet can be selectively blocked; a controller is electrically connected with the transfer assemblies and the swing assemblies. The discharging device is adopted in the control method of the discharging device. The discharging device can provide the discharging outlets so that the materials can be transferred for a plurality of production lines at the same time, and the materials can be transferred for the production lines respectively, the structure is simple, the reliability is high, and the efficiency is high. According to the control method of the discharging device, the discharging amount of each discharging outlet can be controlled.