69results about How to "Control Method Advantages" patented technology

The invention provides an air conditioner external unit control method and device, wherein the air conditioner external unit control method is applied to an air conditioner. The air conditioner storesa resonance frequency range corresponding to each rotation speed, and the air conditioner includes a fan and a compressor. The control method comprises the steps that a stable frequency of the compressor and a current rotational speed of the fan are acquired, and whether an anti-resonance mode is started or not is determined based on the obtained stable frequency and the resonant frequency rangecorresponding to the current rotational speed. If the anti-resonance mode is started, the rotation speed of the fan is adjusted according to preset adjustment parameters until a preset condition for exiting the anti-resonance mode is satisfied. According to the scheme, the noise reduction is realized by preventing the compressor and the fan from generating solid-frequency vibration. At the same time, the effect of directly switching the wind gear on the running effect of a complete machine is avoided.

The invention provides a braking control method and system for a vehicle and the vehicle. The method includes the steps that a gear position signal and vehicle running parameters are acquired; if the gear position signal is a neutral gear signal, the running state of the vehicle is further judged according to the vehicle running parameters; if the running state of the vehicle is a parking state, an electronic parking execution mechanism is controlled to provide the braking force for the vehicle so as to keep the vehicle static; and if the running state of the vehicle is a driving state, a current vehicle speed is small than a preset vehicle speed and active braking loses efficacy, the electronic parking execution mechanism is controlled to brake the vehicle so as to make the vehicle state turned into the parking state. By means of the method, the vehicle electronic control function integration degree can be improved, the vehicle installing and maintaining cost is reduced, meanwhile, the P gear function is extra expanded, and the vehicle driving convenience and safety is improved.

The invention provides a control method and device for electronic expansion valves as well as a multi-online system. The method comprises the following steps that gas pipe temperature, liquid pipe temperature, coil pipe temperature and evaporating temperature of each indoor unit and gas suction temperature of a compressor are obtained; when it is detected that the gas pipe temperature of any indoor unit is not lower than the sum of the gas pipe temperature average value of other indoor units and a first preset value, the difference value between the gas pipe temperature and the liquid pipe temperature of any indoor unit is larger than a second preset value, the current opening degree of the electronic expansion valve of any indoor unit is a third preset value and the difference value between the gas suction temperature and the evaporating temperature does not exceed a fourth preset value, the coil pipe temperature average value is calculated according to of the coil pipe temperature ofthe other indoor units; according to the gas pipe temperature average value, the coil pipe temperature average value and the coil pipe temperature of any indoor unit, the actual air pipe temperatureis calculated; and according to the actual gas pipe temperature and the liquid pipe temperature of any indoor unit, the opening degree of the corresponding electronic expansion valve is adjusted. Theoperation reliability of the unit is improved, and the liquid return of the compressor is prevented.

The embodiment of the invention provides an air conditioner control method and an air conditioner, and relates to the technical field of air conditioners. The method is applied to the air conditioner.The method comprises the steps that according to the preset time interval, concentration information of a refrigerant in a box of the air conditioner in the running state is obtained; the obtained concentration information is compared with the preset first concentration threshold value and the preset second concentration threshold value; when the concentration information is larger than the second concentration threshold value, the air conditioner is controlled to stop working, and an alarm is given; and when the concentration information is smaller than or equal to the second concentration threshold value and larger than or equal to the first concentration threshold value, a compressor of the air conditioner is controlled to reduce the frequency, and early warning is conducted. Normal running of the air conditioner is not influenced in the whole detection process, and the coupling degree is low. The current refrigerant concentration lacking degree can be effectively and rapidly judged. The compressor is protected, and a user is prompted under the situation that user usage is not influenced. The using experience of customers is effectively improved.

The invention provides a control method and system of a vehicle driving mode and a vehicle. The method includes the following steps that the traveling state of the vehicle is detected, wherein the traveling state of the vehicle at least comprises straight-line constant-speed traveling, straight-line accelerated-speed traveling, straight-line braking traveling, low-speed traveling, turning, turningaccelerated-speed traveling, turning braking traveling and backing; and according to the traveling state of the vehicle, the vehicle is controlled to enter in the corresponding driving mode. By the adoption of the method, the vehicle can be automatically controlled to enter in the proper driving mode according to the traveling state of the vehicle, the operation burden of a driver is reduced, andthe vehicle performance and the experience feeling of the driver are improved.

The invention provides a vehicle torque control method and system and a vehicle. The vehicle torque control method comprises the steps of obtaining front and rear axle loads, vehicle running parameterand demand torque of the vehicle; obtaining initial distributed torques of a front axle and a rear axle of the vehicle according to the front and rear axle loads, vehicle running parameter and demandtorque of the vehicle; obtaining a theoretical ground adhesion coefficient according to the initial distributed torques of the front axle and the rear axle of the vehicle and the front and rear axleloads of the vehicle; judging whether the theoretical ground adhesion coefficient is larger than an actual ground adhesion coefficient or not; and if so, adjusting the initial distributed torques of the front axle and the rear axle according to the actual ground adhesion coefficient to obtain final distributed torques of the front axle and the rear axle of the vehicle; and controlling the vehicleaccording to the final distributed torques of the front axle and the rear axle of the vehicle. According to the vehicle torque control method, by using the adhesion coefficients between tires and theground, the adhesion rates between the tires and the ground are reduced under the same vehicle torque requirement and the wheel slip probability is reduced so that the driving experience is improved.

The invention provides a control method and system for a vehicle and a vehicle. The control method for the vehicle comprises the following steps of detecting running states and current driving mode ofthe vehicle, wherein the running states of the vehicle at least comprise a cruising state, an accelerating state, a turning braking state, a turning state, a low speed running state, a static state,a running pavement switching state, a reversing state and a stable running state; and correspondingly controlling each sub system of the vehicle according to the running states and the current drivingmode of the vehicle so that the operation state of each sub system is suitable for the current driving mode. According to the control method for the vehicle, the suitable operation state of each subsystem under the corresponding road condition can be intelligently adjusted according to the state and driving mode of the vehicle so that the comfort and active safety of the vehicle are improved andthe driving experience feeling and driving interest of a driver are also improved.

The invention provides a control method and system of an electronic supercharger, and a vehicle. The method comprises the following steps of: when the start-up conditions of the electronic supercharger are met, determining the required torque of an engine according to the opening degree of an accelerator pedal and the rotating speed of the engine; obtaining required air intake quantity of the engine according to the required torque; obtaining required air intake pressure according to the required air intake quantity and air intake temperature; calculating air intake pressure difference between the required air intake pressure and actual air intake pressure; obtaining the estimated rotating speed of the electronic supercharger according to the air intake pressure difference and the rotating speed of the engine; performing PID control according to the air intake pressure difference to obtain PID regulated rotating speed; and correcting the estimated rotating speed of the electronic supercharger according to the PID regulated rotating speed to obtain the final output rotating speed of the electronic supercharger. Through the adoption of the method disclosed by the invention, the acceleration property of the vehicle can be effectively improved, and further driving experience is enhanced.

The invention provides a control method and system for starting an engine through a BSG motor and a vehicle. The method includes the steps that rotating speeds of an output shaft of the BSG motor are continuously collected so that the rotating speed waveform of the output shaft of the BSG motor can be obtained; the low-frequency part corresponding to the base waveform is filtered out from the rotating speed waveform of the output shaft of the BSG motor so that the rotating speed vibration waveform of the output shaft of the BSG motor can be obtained, wherein the base waveform is the normal rotating speed waveform of the output shaft of the BSG motor; the compensation waveform used for offsetting the rotating speed vibration waveform of the output shaft of the BSG motor is obtained according to the rotating speed vibration waveform of the output shaft of the BSG motor; the compensation torque is obtained according to the compensation waveform; and the output torque of the BSG motor is compensated for according to the compensation torque. By means of the method, the engine can be started through a BSG motor system in all rotating speed sections, and safety is high. Control mode switching of the motor system does not need to be conducted in the start process, and the start time is shortened.

The invention provides a vehicle control method and system and a vehicle. The vehicle control method comprises the steps that a braking system receives a wheel speed signal transmitted by a wheel speed sensor when the vehicle is parked, the braking system acquires the angle between the vehicle and the horizontal direction when the wheel speed signal is larger than a preset threshold, and the braking system conducts pressure buildup according to the angle between the vehicle and the horizontal direction to generate braking force. By the adoption of the vehicle control method, the performance of a vehicle parking system can be improved, parking assistance is conducted actively to achieve the optimal parking effect when the parking system fails or efficiency is low, the safety of the vehicle in the parked state is improved greatly, and the probability of potential safety hazards and accidents is reduced.

The invention provides a control method of a voice air conditioner, a control device of the voice air conditioner and the air conditioner. The control method of the voice air conditioner comprises thefollowing steps: the loudness of indoor voice and the average loudness of environment voice are detected; the loudness of the voice is compared with the average loudness of the environment voice; when the loudness of the voice is higher than the average loudness of the environment voice, semantic information of the voice is extracted, and the similarity scoring is performed on the semantic information of the voice and preset information to obtain a scoring value; the scoring value is compared with a preset threshold; and when the scoring value is higher than the preset threshold, the controlis performed according to the semantic information of the voice. The control method of the voice air conditioner compares the loudness of the voice with the average loudness of the environment voice through identification of the average loudness of the environment voice to reduce wrong awakening risk of the air conditioner.

The invention relates to the technical field of engine control and provides a diesel engine control method and system. The diesel engine control method comprises the steps that the idle speed of a diesel engine is judged; and when the diesel engine is at the idle speed, the opening degree of a throttle valve is set to be a first preset value smaller than the current opening degree. According to the diesel engine control method, when the diesel engine is at the idle speed, the opening degree of the throttle valve is set to be a small value, and therefore the NVH performance of the idle speed condition of a diesel engine vehicle can be effectively improved.

The invention discloses a preheating system of an engine, a control method thereof and a vehicle. The preheating system of the engine comprises a small circulation loop, a heating unit, a water pump and a flow detection unit, wherein the heating unit is connected into the small circulation loop in series; the water pump is connected into the small circulation loop is series; and the flow detection unit is used for detecting the flow value of the small circulation loop only when communicating with the small circulation loop. By adopting the preheating system of the engine, the engine heating time of the engine can be effectively shortened; the engine can be preheated when the engine is turned off; preheating efficiency is high; and response speed is high.

The invention provides an air guide door movement mechanism, an air conditioner hanging machine and an air guide door control method, and relates to the technical field of air conditioners. The air conditioner hanging machine comprises an air conditioner hanging machine body and the air guide door movement mechanism; the air guide door movement mechanism comprises an inner air guide assembly, an outer air guide assembly and an outer air guide door; the outer air guide assembly is connected with the outer air guide door, is used for driving the outer air guide door to rotate to a first positionin a rotating process, and is provided with a first clamping part; the inner air guide assembly is provided with a second clamping part; and the inner air guide assembly is used for rotating relativeto the air conditioner hanging machine body when the outer air guide door rotates to the first position, so that the second clamping part abuts against the first clamping part and drives the outer air guide assembly to continue to rotate to allow the outer air guide door to continue to rotate to a second position and close an air guide mouth. Compared with the prior art, the air guide door movement mechanism allows the outer air guide door to be tightly buckled on the air guide mouth through the rotation of the inner air guide assembly and the abutting between the inner air guide assembly andthe outer air guide assembly.

The invention provides a vehicle control method, a vehicle control system and a vehicle. The vehicle control method comprises the steps of obtaining road surface height information of all road sectionpositions on the current driving road section of the vehicle through a preset terminal, wherein the preset terminal pre-stores the road surface height information of all road section positions on thecurrent driving road section; obtaining position information of the water accumulation edge of a water puddle on the current driving road section; obtaining the maximum water accumulation depth of the water puddle according to the position information of the water accumulation edge of the water puddle and the road surface height information of the position corresponding to the water puddle; and performing a corresponding operation according to the maximum water accumulation depth of the water puddle and the maximum fording depth of the vehicle. The method can effectively avoid the vehicle from fording too deep to result in vehicle accidents.

The invention provides a control method for an air conditioner, and the air conditioner, and relates to the technical field of air conditioners. The control method for the air conditioner comprises the following steps: whether each partition area has a control need or not is judged; if so, a partition control mechanism corresponding to the partition area is not adjusted; or else, the partition control mechanism corresponding to the partition area is adjusted; whether a temperature of one partition area with the control need reaches a set value or not is continuously detected; and if the temperature of one partition area with the control need reaches the set value, the output of a heat exchanger corresponding to the partition area which already reaches the set value is adjusted to be in a low-output state, and the output of a heat exchanger corresponding to the partition area having an actual value with the biggest difference from the set value is adjusted to be in a high-output state.The control method for the air conditioner is capable of carrying out differentiating control on the temperatures of the areas according to the different use needs of users for the air conditioner, high in comfort, and capable of saving the energy consumption.

The invention provides a continuous variable valve lift system control method and system and a vehicle. The method includes the following steps that S1, valve lifts of all air cylinders of an engine are controlled according to a minimum valve lift target value; S2, actual valve lift values of all air cylinders of the engine are detected; S3, whether the actual valve lift values of all air cylinders of the engine are within the minimum valve lift target interval or not is judged; and S4, if the actual valve lift values of all air cylinders of the engine are not within the minimum valve lift target interval, the angles of corresponding eccentric gears are adjusted until the actual valve lift values of all air cylinders of the engine are within the minimum valve lift target interval. By means of the method, consistency of the valve lifts of all air cylinders of an internal combustion engine can be guaranteed, and influences of machining tolerance of parts in the system, the fit clearance of the parts and deformation of the parts on the valve lifts are avoided.

The invention provides a control method and system for an electronic supercharger of a vehicle and the vehicle. The control method comprises the steps of acquiring needed torque of an engine and obtaining needed supercharging pressure of the engine according to the needed torque; determining exhaust energy according to the exhaust gas temperature and exhaust volume of the engine; obtaining the optimal increment of an expected rotating speed of a turbosuperchager according to the current rotating speed and the exhaust energy of the turbosuperchager; obtaining the optimal increment of a final expected rotating speed according to a rotating speed limiting value and the optimal increment of the expected rotating speed; obtaining supercharging pressure of the turbosuperchager according to needed air inflow and the optimal increment of the final expected rotating speed; and determining supercharging pressure of the electronic supercharger according to needed supercharging pressure and the supercharging pressure of the turbosuperchager so that the electronic supercharger can be controlled. The method can effectively improve the acceleration performance of the vehicle, and has the advantages of energy conservation and emission reduction.

The invention provides a control method and system of a vehicle and the vehicle. The vehicle comprises a wading detecting device for identifying a water surface and detecting the wading depth. The control method of the vehicle comprises the steps that a wading mode request signal is received; whether the vehicle satisfies the conditions for entering into the wading mode or not is judged, and the conditions for entering into the wading mode include that the wading detecting device identifies the water surface and the current vehicle speed of the vehicle is less than a preset vehicle speed; andif it is determined that the vehicle meets the conditions for entering into the wading mode, the vehicle is controlled to enter into the wading mode to execute a preset wading control strategy and shows the wading depth. The control method of the vehicle can improve the passing ability, stability and safety of the vehicle during wading.

The invention provides a control method of a liquid drop bounce direction based on a surface wetting gradient. A surface free energy gradient is established on the surface with a uniform structure, and thus, liquid drops are controlled to bounce to an area with low non-wettability from an area with high non-wettability. The control method of the liquid drop bounce direction based on the surface wetting gradient has the following advantages that the operation is simple and convenient, no exact requirement is on base body materials, and the cost is low; contact bouncing time of surface dynamic impacting liquid drops in a liquid drop impacting experiment is shortened to 11.6ms; the liquid drops can directionally bounce to the area with the low non-wettability from the area with the high non-wettability, and rapidly leave the surface of a finished product; and the wetting gradient surface of the prepared controllable impacting liquid drop bounce direction has important practical significance to industrial application of the super-hydrophobic surface.

The invention provides a control method and a control system of a manual vehicle, and the manual vehicle. The method comprises the following steps of obtaining acceleration during braking of the vehicle according to a vehicle speed signal in the braking process of the vehicle; judging whether the acceleration during braking of the vehicle is greater than emergency brake acceleration; enabling a clutch of the vehicle to be automatically engaged and locked if the acceleration during braking of the vehicle is greater than the emergency brake acceleration. By adopting the control method of the manual vehicle, the braking distance can be effectively reduced, and the vehicle safety can be improved.

The invention discloses a coating production line control method. The method is applied to an upper computer. A conveying assembly line and a coating production line are connected in an end-to-end manner to form an annular assembly line. The upper computer is in communication connection with the conveying assembly line and the coating production line so that the upper computer can be used for controlling the conveying assembly line and the coating production line. By means of the method, the position of a substrate can be detected in real time, and the vacuum range of various cavities of the whole coating production line can be adjusted according to the position of the substrate; and in addition, the substrate transmission speed can be adjusted so that the whole production line can be controlled, and coating accuracy is guaranteed. The annular assembly line is formed, the occupied area is saved, intelligent control is adopted for substrate conveying in the whole coating production line, manpower and material resources are saved, and the production efficiency is improved. The cavities in the coating assembly line can be replaced or increased according to product needs, the whole coating production line adapts to multiple coating technology requirements, the service life is prolonged, and the resource is saved.

The invention provides a vehicle controlling method and system and a vehicle. The controlling method comprises the steps that the state-of-charge of a power battery is monitored; when the state-of-charge of the power battery drops to a first threshold value, an engine main driving mode is adopted to drive the vehicle to run, wherein the engine main driving mode comprises a mode taking engine driving being as a main and motor driving as auxiliary and a mode with independent driving of an engine and electricity generating by a motor; the first threshold value is greater than a second threshold value, and the second threshold value is the lower limiting value of the state-of-charge of the power battery; when the state-of-charge of the power battery drops to the lower limiting value, the modewith independent driving of the engine is forcibly adopted to drive the vehicle to run. According the controlling method, the accelerating performance of the vehicle can be effectively improved, and driving experience is enhanced accordingly.

The invention provides an air conditioner startup and shutdown control method and an air conditioner, and relates to the technical field of air conditioners. The air conditioner startup and shutdown control method comprises the following steps that a timing function starting signal is received; a preset running state of the air conditioner and preset running time of the preset running state are obtained, and the preset running state and the preset running time are transmitted to a cloud server; an operation instruction generated according to the preset running state and the preset running timefrom the cloud server is received, and the preset running state runs according to the operation instruction. According to the air conditioner startup and shutdown control method, after an air conditioner user starts an automatic mode, the cloud server controls the running state of the air conditioner according to setting of the air conditioner user, the timing function of the air conditioner is achieved through the interaction between the cloud server and the air conditioner, and the accuracy of the timing function of the air conditioner is improved.

The invention relates to the field of vehicle control, and provides a vehicle control method and system. The vehicle control method comprises the steps of transmitting a maintenance and operation instruction to a T-BOX on a telematics remote service provider TSP; receiving vehicle state information returned in response to the maintenance and operation instruction from the T-BOX, wherein the vehicle state information comprises engine stopping time; when the engine stopping time exceeds a first preset value, transmitting a starting instruction to the T-BOX. By means of the vehicle control methodand system, through the vehicle telematics service provider TSP, the maintenance and operation instruction is conveyed to control the vehicle T-BOX, and remote control of a vehicle is achieved; whenthe engine stopping time exceeds the first preset value, the starting instruction is conveyed to the T-BOX, and periodic starting maintenance of the vehicle is achieved.

The invention provides a control method and a controller. The method comprises the following steps of collecting a rotor position, a motor rotating speed, a quadrature-axis current, a direct-axis current of a permanent magnet synchronous motor and the pulse width modulation duty ratios of three bridge arms; compensating the rotor position according to the rotating speed of the motor; and calculating a three-phase current according to the compensated rotor position information, finally determining a bus current estimation value by using the three-phase current and a PWM value as the calculationinput of the bus current, and performing low-pass filtering on the bus current estimation value to obtain a target bus current value, thereby controlling the permanent magnet synchronous motor according to the target bus current value. According to the control method provided by the invention, the three-phase current can be compensated at any position, and in all working conditions, no matter whether the rotating speed of the motor is high or low, the estimation precision is higher, so that the engineering personnel can master the bus current at any time, and furthermore, the precise controlon the permanent magnet synchronous motor is realized.

The invention provides a control method, a mobile terminal, a server and a control system. The method comprises the following steps that the mobile terminal sends a vehicle using request to the server; the server sends the vehicle position to the mobile terminal after receiving the vehicle using request and then sends an unlocking command to the mobile terminal after the mobile terminal arrives at the vehicle position; the mobile terminal sends unlocking confirmation to the server according to the unlocking command; the server unlocks a vehicle according to the unlocking confirmation, recognizes user identification according to a face image sent by the mobile terminal and then starts the vehicle after the user identification is successfully recognized. According to the control method, the vehicle can be started through positioning operation and the face image, simpleness and convenience are achieved, the reliability and the safety are improved, the using requirements of a user are better met, and the using experience of the user is improved.

The invention provides an EGR rate computing method and system and a vehicle. The method comprises the following steps: acquiring an actual volume flow rate of gas entering an engine cylinder; detecting the gas inlet pressure and gas inlet temperature of an engine; obtaining the amount of substance of the gas according to the actual volume flow rate, the gas inlet pressure, the gas inlet temperature and a gas constant of the gas; obtaining the amount of substance of fresh air entering the engine cylinder according to the flow rate of the fresh air entering the engine cylinder and the molar mass of air; and obtaining an EGR rate according to the amount of substance of the gas and the amount of substance of the fresh air. The EGR rate can be simply and efficiently computed according to the method provided by the invention, and the working condition of the engine can be corrected in real time according to the computed result to improve the stability of oil consumption and discharge of the engine during instant operation.