925 results about "Current threshold" patented technology

The invention discloses a man-machine exoskeleton cooperation method based on multi-modal signal fusion, and relates to the technical field of exoskeleton program control. The method comprises the following steps that man-machine exoskeleton driving pre-pressure cold and hot mutation analysis is conducted in combination with man-machine exoskeleton man-machine cooperation components; and performing memory alloy spring pre-pressure optimization adjustment in combination with a man-machine exoskeleton driving pre-pressure cold and hot mutation analysis result. According to the invention, cold chain exoskeleton cooperative control is realized through multi-mode signal fusion, and three-level regulation and control are implemented based on a current threshold value and a myoelectricity state: graded current rising / falling and safety early warning are carried out in case of abnormal current; dynamic gain compensation or joint retardation protection is carried out when myoelectricity is abnormal; according to the man-machine exoskeleton cooperative control method and the man-machine exoskeleton cooperative control system, the effect of improving the accuracy of man-machine exoskeleton cooperative control for coping with cold-chain logistics is achieved, and the problem that the accuracy of man-machine exoskeleton cooperative control for coping with cold-chain logistics is disabled in the prior art is solved.

The invention relates to the technical field of electric vehicle charging, in particular to a charging gun short-circuit fault detection method, and aims to solve the problems that in the prior art, charging gun short-circuit fault detection mainly depends on two technical paths of current threshold triggering and single parameter monitoring, when it is detected that the current exceeds a preset value, a circuit is cut off, detection hysteresis exists, and the detection time is shortened. And pre-judgment cannot be carried out before short circuit occurs, so that the equipment is damaged before the protection action is executed. According to the method, the digital twinning pre-diagnosis model is constructed by fusing multiple physical quantity data, early warning and graded protection of the short-circuit fault of the charging gun are realized by combining multi-dimensional feature fusion and a dynamic risk assessment mechanism, and the method has the advantages of improving the detection timeliness, reducing the misjudgment and missed judgment rate and enhancing the environmental adaptability.

The embodiment of the invention discloses a defrosting control method and device, an air conditioner and a computer readable storage medium, and relates to the technical field of air conditioners. The defrosting control method comprises the steps that the current of a draught fan is obtained; acquiring a plurality of current characteristics of the current; acquiring environment temperature and environment humidity; determining a dynamic current threshold according to the environment temperature and the environment humidity; based on the multiple current characteristics, the environment temperature, the environment humidity and the dynamic current threshold value, the frosting probability is determined; and when the frosting probability is larger than a frosting probability threshold value, defrosting control is carried out. Therefore, according to the scheme, whether frosting occurs or not can be accurately judged, and accurate defrosting control is achieved.

The invention provides a self-adaptive PD charging control method and system based on a double Type-C circuit and a storage medium, and the method comprises the steps: monitoring an interface connection state in real time, collecting power-on current information when peripheral access is detected, and intelligently recognizing a device type in combination with a preset current threshold range and a PD protocol handshake process. The function change-over switch and the charging management module are dynamically configured; if the device is a data device, a data path is connected and power output is limited; if the device is a charging device, charging parameters are negotiated and high-power transmission is started; when the double charging devices are connected, intelligent power distribution and priority management are executed, electrical parameters such as voltage, current and temperature are continuously monitored, and self-adaptive adjustment is triggered when the voltage, the current, the temperature and the like exceed the limit. According to the invention, intelligent function switching and safe power management of double interfaces are realized, the risk of misplug damage is effectively avoided, and the equipment compatibility, the system energy efficiency and the user experience are improved.

The invention discloses an AC excitation system self-starting control method and system, and the method comprises the steps: obtaining a rotor current rotation frequency and an actual rotor rotation frequency, and generating a slip frequency; the slip frequency is compared with a preset dynamic threshold value, and the rotating speed given value is dynamically adjusted; inquiring a preset multi-stage sectional type current control curve according to the actual rotor rotation frequency, and outputting a d-axis current given value; pI adjustment is carried out based on the slip frequency to generate a q-axis current given value, and corresponding preset current threshold limit is applied according to the frequency band where the actual rotor rotation frequency is located; performing independent parameter configuration on the magnetic flux current control loop and the torque current control loop by adopting a non-coupling parameter setting algorithm; and in the unit starting process, under the condition that the stable starting constraint condition is met, an optimal starting parameter combination is generated. According to the invention, by dynamically adjusting the rotating speed given value and controlling the current in a segmented manner, the stable self-starting of the alternating current excitation system is realized, and the reliability and efficiency of the starting process are improved.

The application discloses a control method and device of a vehicle and a storage medium, and belongs to the technical field of vehicle control. The method comprises the following steps: in response to the fault level being a target level and the first detection result indicating that the engine and the ISG motor are in a series working mode, setting the charging target power of the power battery connected in the high-voltage loop to 0, and performing speed closed-loop control on the ISG motor with a speed threshold value as a target speed; in response to the actual torque of the engine being less than 0 and the direct-current bus current being less than a current threshold value, controlling the power battery to be disconnected from the high-voltage loop, performing speed closed-loop control on the engine and voltage closed-loop control on the ISG motor; and supplying power to the traction motor (TM) motor by the ISG motor. The DC bus voltage can be stabilized in the case that the power battery is disconnected, so that the TM motor can stably drive the vehicle to safely travel in the case that the power battery fails.

The invention discloses a control system capable of adjusting the cutting speed, a control method of the control system and an electric anastomat. The driving system is electrically connected with the power supply module; the moving assembly is connected with the driving system; the controller is electrically connected with the power supply module, and comprises a detection unit connected with the driving system and used for detecting current data of the driving system in real time; the data analysis unit is connected with the detection unit and is used for receiving the current data of the detection unit; the control unit is connected with the data analysis unit and the driving system, and the control unit is provided with a plurality of current threshold intervals; the data analysis unit compares the current data with a current threshold interval to obtain a comparison result, and the control unit is used for adjusting operation parameters of the driving system according to the comparison result, so that the cutting speed can be automatically reduced when thick tissue is cut, and the cutting and suturing effects are better.

The invention discloses a full-working-condition driving force optimal distribution control method based on an HCU, and relates to the technical field of new energy automobile control, and the method comprises the following steps: building a long slope energy flux analysis model, generating a time sequence envelope curve of recovery power based on a slope, an automobile speed and a wheel end inertia, and extracting a local peak value interval in the time sequence envelope curve; and in the peak value interval, based on the open-circuit voltage, pulse current and impedance spectrum information of the power battery, online identifying the absorption capacity of the power battery, correcting the upper limit of the state of charge of the power battery, determining a rechargeable current threshold value, carrying out coupling analysis on the threshold value and the recovery power envelope curve, and identifying the reverse current risk time period of the inverter. According to the method, real-time constraint on the absorption capacity of the power battery under the long-slope deceleration working condition is achieved, the inverter reverse irrigation risk is recognized, a peak clipping track and a transient discharge channel are constructed, micro-pulse, accessory absorption and super-capacitor shunting are fused, energy closed-loop control is formed, and the safety of the whole vehicle and the energy utilization efficiency are improved.

The invention relates to the technical field of electronics, and discloses a power supply method, a readable storage medium, a chip and electronic equipment. The electronic equipment can store the corresponding relation between the voltage parameters of the power supply modules and the phase cutting current thresholds corresponding to different power supply groups. In the operation process of the electronic equipment, the current voltage parameter of the power supply module can be obtained, and the phase cutting current threshold value matched with the current voltage parameter is determined based on the corresponding relation. And then, the electronic equipment can supply power to the load through the power supply group which corresponds to the current output current and has the highest power supply efficiency according to the relationship between the current output current of the display screen power supply module and each determined phase cutting current threshold value. Therefore, since the phase cutting current threshold is matched with the current input voltage and the current output voltage of the power supply module, the power supply module can work under the condition of a power supply phase number with relatively high efficiency, so that the power supply efficiency of the power supply module for the load is improved, and the power consumption of the electronic equipment is reduced.

The invention relates to the technical field of motor control, and discloses a chip mounter Z-axis linear motor module end-process force control method, a driver, a medium and a method, and the method comprises the following steps: S1, after a preset end-process position is reached, motor control is switched from position loop control to speed loop control, so that a motor keeps uniform motion; s2, monitoring whether a real-time current value fed back by the motor reaches a threshold current Iset1 or not and maintaining the real-time current value for a preset time length; s3, if the real-time current value reaches Iset1 and is maintained for a preset time length, continuously monitoring whether the real-time current value reaches a threshold current Iset2 and is maintained for a preset time length; and S4, if the real-time current value reaches Iset2 and is maintained for a preset time length, judging that collision occurs. According to the scheme, the speed ring is adopted to control the motor to move at a constant speed to carry out precise force control, meanwhile, the dynamic current threshold value is set to carry out two times of collision detection, collision detection is achieved while force control is carried out, a sensor does not need to be additionally used, and the requirements for mounting precision and compact structure are met.

The invention discloses an adaptive virtual impedance-based fault current limiting method for a network-forming converter, and belongs to the technical field of converter control. Comprising the following steps: collecting grid-side voltage, converter-side voltage and converter output current; carrying out current amplitude calculation on the grid-side voltage quantity to obtain a current effective value of the port of the converter; judging whether the current effective value of the current transformer port exceeds a current threshold value of the current transformer; and if yes, self-adaptive virtual impedance is introduced to carry out converter fault current limitation. The resistance part of the virtual impedance is used for suppressing surge current at the beginning of a fault; and the reactance part is used for suppressing the effective value of the fault transient current within the current limiting range. In the fault process, the current virtual impedance value is adaptively changed according to the effective value of the current overcurrent, and the virtual impedance can be automatically quitted after the fault end stage. The method is suitable for fault current suppression of the network-forming converter in various control modes, and has good feasibility and practical value.

A method for controlling the impact between the gripping fingers of a robotic gripper and an object to be gripped comprises the steps of : a) setting a set-point value of the gripper closing speed; b) controlling the movement of the gripper at the closing speed set-point value; c1) calculating a speed datum representative of the closing speed; c2) comparing said speed datum with a speed threshold value; d1) calculating a datum for the current absorbed by the gripper; d2) comparing said absorbed current datum with a pre- established absorbed current threshold value; e) determining whether the gripping fingers have impacted upon the object when the speed datum is lower than the speed threshold value or when the absorbed current value is above the absorbed current threshold value; f) activating a braking device as soon as an impact is detected.

The invention discloses an LLC circuit and a control method and device thereof, a power conversion system, a storage medium and a computer program product, the LLC circuit is provided with an LLC resonant cavity and a switching tube module, and the switching tube module is provided with a first switching tube and a second switching tube which can be alternately conducted up and down; the control method of the LLC circuit comprises the following steps: acquiring a preset resonant current threshold value of the LLC resonant cavity; and under the condition that the LLC circuit starts to start after being electrified, on the basis of a resonant current threshold value of the LLC resonant cavity, asymmetric driving pulse starting is firstly performed on the switching tube module, and then frequency reduction starting is performed, so that current-limiting starting control of the LLC circuit is realized. According to the scheme, after the LLC circuit is powered on, asymmetric driving pulse starting is firstly carried out on the switching tube module, and then frequency reduction starting is carried out, so that current-limiting starting control of the LLC circuit is realized, and the LLC circuit is enabled to be stably and safely started.

The invention relates to the technical field of power monitoring and alarming, and discloses a current alarming method based on a microcontroller. According to the method, multi-channel current signals of a target circuit are collected by using an adaptive sampling window, and the signals are dynamically intercepted to generate an original current data set, so that signal loss is effectively avoided, and current signal information is comprehensively obtained. Time domain-frequency domain conjoint analysis is carried out on an original current data set, fundamental component and harmonic component characteristic values of current signals are deeply extracted, and sensitivity to signal abnormity is improved. And establishing a current state feature vector according to the feature values, and matching a current circuit operation mode in combination with a preset working condition classification template so as to realize accurate identification of the circuit operation state. And loading a corresponding current threshold rule base based on a matching result, and carrying out threshold dynamic correction on the real-time current signal by adopting a sliding window mechanism, so that the alarm accuracy is improved.

The invention relates to the technical field of numerical control machine tool control, in particular to a numerical control machine tool axial positioning control method and system. The method comprises the following steps: driving a servo motor to execute reverse clearance compensation motion; the synchronous sampling period obtains a position signal and a load current signal; performing composite judgment based on the position signal and the load current signal: judging whether the variable quantity of the position signal along the instruction direction reaches a preset position threshold value or not, and judging whether the increment of the load current signal relative to the reference current value reaches a preset current threshold value or not; when all items are compositely judged to be met at the same time, it is judged that the mechanical clearance is eliminated, reverse clearance compensation motion is terminated, and a double-closed-loop axial positioning control mode is switched; and when any one item is not satisfied through composite judgment, keeping the reverse clearance compensation motion. The problems that when the numerical control lathe rotates reversely in the axial movement direction for clearance compensation, compensation is not accurate, a workbench continuously wriggles near the target position, and the machining precision is affected are solved.

A control circuit for a switching converter has a valley current limiting circuit, a peak current limiting circuit, an ON time control circuit, and a switching control circuit. The valley current limiting circuit provides a valley current comparison signal by comparing a current sense signal with a first current threshold. The current sense signal is representative of a current flowing through a switching circuit of the switching converter. The peak current limiting circuit provides a peak current comparison signal based on the valley current comparison signal, a switching control signal, and a second current threshold. The ON time control circuit provides an ON time control signal based on the switching control signal. The switching control circuit provides the switching control signal based on the voltage comparison signal, the valley current comparison signal, the peak current comparison signal, and the ON time control signal to control the switching circuit.

A switch control method is applied to a hybrid voltage converter including a switched capacitor unit and a freewheeling unit. The method including obtaining the output current of the hybrid voltage converter, when the output current is greater than a first current threshold, controlling the switches in the hybrid voltage converter to operate in parallel conduction mode, when the output current is less than the first current threshold, controlling the switches in the hybrid voltage converter to operate in sequential conduction mode. When the switches operate in parallel conduction mode, N switches in the switched capacitor unit are controlled to turn on and off with the same duty cycle and a phase shift of 360 / N degrees. When the switches operate in sequential conduction mode, each switch in the switched capacitor unit is controlled to conduct individually with the same duty cycle in sequence.

A vehicle control method and apparatus, and a storage medium, which belong to the technical field of vehicle control. The method comprises: in response to the fault level being a target level and a first detection result indicating that an engine and an ISG are in a series operation mode, setting a target charging power of a traction battery to be 0, and performing rotational speed closed-loop control on the ISG by using a first rotational speed as a target rotational speed; in response to an actual torque of the engine being less than 0 and the current of a direct-current bus being less than a current threshold value, controlling the traction battery to disconnect from a high-voltage loop, performing rotational speed closed-loop control on the engine, and performing voltage closed-loop control on the ISG; and supplying power to a traction motor (TM) by means of the ISG. Therefore, the stability of the voltage of a direct-current bus can still be ensured when a traction battery is disconnected, thereby ensuring that a TM can still stably drive a vehicle to safely travel when the traction battery has a fault.

The invention relates to the technical field of electric vehicle power supply control, and discloses a charging pile and vehicle BMS intensive power supply controller. The system comprises an electric energy demand modeling module, a multi-source integration module, a dynamic adjustment module, a safety boundary judgment module and an optimized output module. The electric energy demand modeling module obtains battery parameters transmitted by the BMS, analyzes voltage and current thresholds, extracts characteristic quantities to generate a battery demand sequence and constructs an electric energy demand characteristic template; the multi-source integration module collects output parameters of the charging pile and environmental data, matches characteristic quantities and then fuses the parameters to generate an integrated parameter sequence; the dynamic adjustment module calculates a charging stage division threshold, identifies a power boundary condition and generates a dynamic regulation and control instruction set; the safety boundary judgment module monitors output fluctuation and a BMS feedback signal, and compares a safety threshold value to generate a boundary state identifier; and the optimization output module adjusts output waveform parameters according to the identifier, matches the battery demand change trend, generates an optimization power supply strategy, and adapts to the dynamic demand of the battery.

Embodiments of the present application relate to the technical field of circuits, and provide a boost circuit and an electronic device, which can solve the problem of a device being easily damaged in a surge voltage scenario. The boost circuit comprises: a first inductor and a second inductor; at least two first switch transistors, which are sequentially connected in series between a second end of the second inductor and a positive electrode of a busbar; at least two second switch transistors, which are sequentially connected in series between the second end of the second inductor and a negative electrode of the busbar; and a first capacitor which is electrically connected between a first node and a corresponding second node. At least one of the at least two first switch transistors and the at least two second switch transistors is connected in parallel with a corresponding variable resistor device, the variable resistor device being a device which changes from a high resistance state to a conducting state when the voltage difference between two ends exceeds a voltage threshold. The at least two first switch transistors and the at least two second switch transistors are used for cutting off when a current on the first inductor exceeds a current threshold.

The invention discloses electronic paper display equipment and a feed protection and charging optimization method thereof. The electronic paper display equipment comprises an electronic paper screen; the energy storage unit is used for storing electric energy; the ambient light energy acquisition module is used for converting ambient light into electric energy and providing the electric energy to the power management module; the power management module is used for managing storage and distribution of electric energy and outputting a first voltage signal representing the real-time electric quantity of the energy storage unit and a current signal representing the real-time charging current to the main control module; the display driving module is used for driving the electronic paper screen to refresh pictures, and a power supply loop of the display driving module is controlled by the main control module; and the main control module is used for receiving the first voltage signal and the current signal, and generating a control instruction according to a comparison result of the real-time electric quantity and a first electric quantity threshold value and a comparison result of the real-time charging current and a first current threshold value. According to the invention, the problems of easy display abnormity, slow charging and incapability of automatic recovery during feeding of the electronic paper are solved, and energy autonomy and high-reliability operation are realized.

The invention discloses a high-side driving circuit and a vehicle body controller. The high-side driving circuit relates to the field of vehicle body controllers, and solves the problem that the existing high-side driving circuit cannot meet the requirements of low cost and high reliability. The switching circuit adopts a combined structure of switching tubes and is connected in series between a power supply and a load, and more stable on-off control is realized through cooperation of multiple tubes; the starting threshold circuit responds to an external control signal only when the load impedance meets a preset threshold value, and large-current load driving in the starting stage or forced starting during load abnormity is carried out. The over-current threshold circuit is connected in series with a driving loop of the switching circuit and provides constant over-current turn-off. A voltage negative feedback circuit is introduced into the voltage and potential stabilizing module to realize self-turn-off and keep a turn-off state when overcurrent and short circuit occur, and self-recovery is realized after a fault disappears without depending on logic judgment of an external control unit. The port protection module absorbs the instantaneous high voltage and the surge current. Through the characteristics, the current-carrying capability of the triode is improved, and the application range of the triode switching circuit is widened.

The invention relates to a switch module control circuit and an energy storage power supply. The switch module control circuit comprises a power supply circuit, a locking module, a detection module and a driving module. The power supply circuit is arranged between a power supply end and a load end, and a switch module and an overcurrent protection element are arranged on the power supply circuit; the overcurrent protection element is used for being disconnected when the current output by the power supply circuit is larger than a preset current threshold value. The locking module is used for outputting a locking signal when the driving signal of the switch module is a high level, and the high level is a corresponding signal for driving the switch module to be conducted; the detection module is used for bypassing the locking signal when the power supply circuit is switched on; and the driving module is used for controlling the switch module to be switched off when the locking signal is received, and controlling the switch module to be switched on based on the driving signal when the locking signal is not received. By adopting the switch module control circuit, the reliability of the switch module on the power supply circuit of the energy storage power supply can be improved.

The invention relates to the technical field of circuit breakers, and provides a self-adaptive overcurrent protection method and system for an explosion-proof circuit breaker. The method comprises the following steps: determining electrical equipment connected with an explosion-proof circuit breaker bus; carrying out load type judgment, analyzing current waveform dynamic characteristics according to the type, and constructing an overcurrent threshold mapping decision relation; collecting current environment data, analyzing the influence of the current environment data on the current bearing capacity, and generating a current bearing capacity decline index; and optimizing an over-current threshold mapping decision relation in real time according to the index, and performing over-current monitoring and protection action triggering on the bus according to the optimized mapping decision relation. The technical problems that the overcurrent setting value of a traditional explosion-proof circuit breaker is fixed, and different load working conditions and environment derating cannot be considered at the same time, so that the protection accuracy and adaptability are insufficient are solved, the overcurrent threshold value is adaptively set in real time according to the load pulse characteristic and the environment current bearing capacity, and the protection accuracy and adaptability are improved. And the over-current protection accuracy and adaptability of the explosion-proof circuit breaker are improved.

A sticking detection method and apparatus for an electronic park brake system, and a device and a vehicle. The method comprises: in response to a caliper clamping instruction, controlling an electric motor of an electronic park brake system to rotate in a first direction, so as to control a caliper of the electronic park brake system to perform a clamping action; measuring a load current of the electronic park brake system during the process of the caliper performing the clamping action, so as to obtain a first load current; when the first load current reaches a first current threshold value, performing sticking detection on the caliper and the electric motor, so as to obtain a sticking detection result, wherein the sticking detection result is used for indicating whether the electronic park brake system has a clamping sticking anomaly; and when the sticking detection result indicates that the electronic park brake system has a clamping sticking anomaly, determining that the electronic park brake system is abnormal. The method effectively improves the accuracy of fault detection for electronic park brake systems.

The invention discloses a fault determination method and device for a permanent magnet synchronous motor, and a computer program product. The method comprises the steps that in the operation process of the motor, the three-phase current of the motor is acquired according to a preset time period; if the maximum current in the three-phase current exceeds an upper limit current threshold value and the minimum current in the three-phase current is lower than a lower limit current threshold value, acquiring the current rotating speed and torque of the motor; if it is determined that the motor is not in the locked-rotor working condition according to the rotating speed and the torque, determining that the motor has an open-phase fault at present; and under the condition of determining that the motor is in a locked-rotor working condition according to the rotating speed and the torque, if the phase difference between any two phases in the motor does not meet a preset phase loss condition, determining that the motor has a locked-rotor fault at present, and otherwise, determining that the motor has the locked-rotor fault and the phase loss fault at the same time at present. According to the invention, the technical problem that the normal operation of the motor is affected by adopting a wrong protection mechanism due to the fact that misjudgment is easy to occur during motor fault detection in the prior art is solved.

The utility model discloses a multipath output protection control power supply device, which comprises a power supply modulation module, a plurality of output modules and a plurality of over-current self-locking protection modules, the plurality of output modules are connected in parallel, each output module at least comprises a switch unit, and the over-current self-locking protection modules are connected in parallel. The head end of each switch unit is connected with the output end of the power supply modulation module, the tail end of each switch unit is used for being connected with a corresponding load, the controlled end of each switch unit is used for being connected with a control module, and each overcurrent self-locking protection module is connected with the output module in a one-to-one correspondence mode. The sampling end of the overcurrent self-locking protection module is connected with the corresponding output module to sample the working current, the control end of the overcurrent self-locking protection module is connected with the controlled end of the corresponding switch unit to drive the switch unit to be disconnected when the working current exceeds a current threshold value, and the design is convenient to use, safe and reliable.

The invention discloses a low-voltage cabinet and an operation environment monitoring and early warning system thereof, and belongs to the technical field of low-voltage electrical equipment monitoring. The system comprises an information acquisition module, an electromagnetic environment analysis module, an in-cabinet environment analysis module, an operation activity analysis module, a temperature-leakage current analysis module and a flow rate optimization module. A plurality of environmental coefficient and collaboration models are constructed by collecting various indexes such as electromagnetism, gas, air pressure, operation frequency and the like, temperature and leakage current thresholds are dynamically calibrated, and the air velocity in the cabinet is optimized based on a temperature-leakage current collaboration coefficient and an operation activity coefficient. The system can comprehensively sense the operation state of the low-voltage cabinet, achieves precise early warning and intelligent ventilation, and effectively improves the operation safety and energy efficiency level of equipment.

The invention provides a DCDC converter, a control method thereof and a communication base station power supply system. A busbar connecting end of the DCDC converter is connected with a DC busbar, and a battery connecting end of the DCDC converter is connected with a battery module; the DCDC converter is used for adjusting the duration that the current of the battery connecting end is greater than or equal to a first current threshold to a second duration when the duration that the current of the battery connecting end is less than a first current threshold is less than a first duration and the voltage of the battery connecting end is less than a first voltage threshold, or adjusting the duration that the current of the battery connecting end is greater than or equal to the first current threshold to a second duration, adjusting the duration that the voltage of the battery connection end is greater than or equal to the first voltage threshold to a third duration; and when the duration in which the current of the battery connecting end is less than the first current threshold is greater than or equal to the first duration, adjusting the duration in which the current of the battery connecting end is greater than or equal to the first current threshold to a fourth duration. The DCDC converter can prevent the battery module from entering the sleep mode in the process of controlling the battery module.

The invention relates to the technical field of wall-hanging stoves, and discloses an ignition control method and device of a wall-hanging stove, a controller and the wall-hanging stove.The ignition control method comprises the steps that when ignition of the wall-hanging stove fails, the valve opening current of a gas proportional valve of the wall-hanging stove is detected, and when the valve opening current is smaller than a preset current threshold value, the valve opening current is increased, and the wall-hanging stove is controlled to execute ignition operation again; when the valve opening current is larger than or equal to the preset current threshold value, the fan rotating speed of the wall-hanging stove is detected; and when the rotating speed of the fan is larger than the preset rotating speed threshold value, the rotating speed of the fan is adjusted to the preset rotating speed threshold value, and the wall-hanging stove is controlled to execute re-ignition operation. According to the method, the valve opening current is firstly adjusted when the execution of the ignition operation fails, so that the ignition success rate of the wall-hanging stove is increased by increasing the air inlet pressure, and the rotating speed of the fan is adjusted when the valve opening current is greater than the preset current threshold value, so that the ignition failure caused by flame separation and fire transfer failure is avoided by reducing the air inlet amount of cold air; the ignition success rate of the wall-hanging stove is improved.