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708results about How to "Reduce wind resistance" patented technology

Air inlet grille control method and device and engine management system

The invention relates to an air inlet grille control method and device and an engine management system. The air inlet grille control method comprises the steps that the current operation conditions of a vehicle are obtained, wherein the current operation conditions comprise the first current temperature of cooling liquid, the current vehicle speed, the current duty ratio of a pulse width modulation fan, the current on-off status of a fan and the current exhaust temperature; the target opening degree of an air inlet grille is determined according to the obtained current operation conditions of the vehicle and the unit angle, wherein the unit angle is the angle of each preset equally-divided part of the included angle between the minimum position when a motor is turned off and the maximum position when the motor is turned on; and the determined target opening degree of the air inlet grille is sent to the motor so as to enable the motor to adjust the opening degree of the air inlet grille according the received target opening degree. By adoption of the air inlet grille control method and device and the engine management system, the dynamic property and the fuel economy performance of the whole vehicle can be improved, and carbon emission is reduced.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Automobile warm air control method and automobile warm air control device

The invention discloses an automobile warm air control method and an automobile warm air control device. The method includes steps: using a control circuit to load weak-current voltage; using a PTC (positive temperature coefficient) heater to load strong-current voltage; using the control circuit to detect temperature of the PTC heater and comparing the temperature of the PTC heater with a target temperature value; and using the control circuit to detect the voltage and the current of a strong-current circuit of the PTC heater through a photocoupling strong-weak current isolation circuit. The automobile warm air control method and the automobile warm air control device are characterized in that a driving circuit receives duty cycle pulse width modulation signals outputted by the control circuit by the aid of an IGBT (insulated gate bipolar transistor) to lead a collector and an emitter to be on or off; and a strong-current power source is applied to the PTC heater through the IGBT. Strong-current voltage of different frequencies is outputted under pulse width modulation control and duty cycle change to realize linear control of the PTC heater. The automobile warm air control method and the automobile warm air control device have the advantages that overhigh surface temperature of the PTC heater can be effectively avoided so that reliability is high and risks and potential hazards are avoided; electrodeless power adjustment and smooth temperature control are realized, and overheating and overcooling are avoided; and cost is low.
Owner:NEW ENERGY AUTOMOBILE BRANCH FAW GROUP CORP

Matrix type honeycomb photocatalysis plasma purifier

The invention discloses a matrix-type honeycomb photocatalysis plasma purifier comprising a housing and a purifying unit module arranged and between an inlet and an outlet in the inner cavity. The purifying unit module consist of a primary filter, an electrostatic precipitation filter, a photocatalysis plasma catalyzing and purifying filter and a positive-negative ion stirrer which are sequentially arranged from the inlet to the outlet; then the air sequentially entering from the inlet and having impurities is purified, and fresh air is discharged finally at the outlet. The matrix-type honeycomb photocatalysis plasma purifier integrates the functions of high-efficiency sterilization, virus killing, dedusting, deodorization, formaldehyde removal, decoration gas removal and organic waste gas degradation, realizes large specific surface and high dust collection efficiency and discharges static electricity at the front end and the back end so as to ionize the air with static electricity discharging efficiency higher than the conventional single-area static electricity discharging efficiency; the photocatalysis plasma catalyzing and purifying filter catalyzes and oxidizes harmful chemical odorous gas, and generated plasmas are in high concentration, so that germs can be completely killed; and the matrix-type honeycomb photocatalysis plasma purifier suffers little wind resistance and realizes massive dust collection.
Owner:郑承煜

System and method for automatically regulating chassis height

The invention discloses a chassis height self regulating system and a regulating method; wherein, the self regulating system comprises a suspension height sensor module, a central processing module, a display interactive module, an audio frequency prompt module and an execution module; wherein, the suspension height sensor module detects the suspension height of a chassis in real time, and transmits the change of the suspension height which is detected every time into the central processing module; the central processing module is connected with a bus of a bodywork, receives the running speed information of vehicles in real time, and processes the received information of the suspension height and the running speed of vehicles; according to the processing result, executive information is sent to the execution module for operation, and the suspension height is automatically regulated. The system of the invention can prompt the user when the running speed exceeds the specified value and automatically lowers the height of the chassis to the safe position in a state of default setting, so as to avoid the danger caused by overhigh center of gravity of the vehicles when in high speed travelling; at the same time, the invention improves the comfortableness when in driving, reduces the windage resistance, saves the fuel, and has good development prospect.
Owner:CHERY AUTOMOBILE CO LTD

Wind power generation network camera monitoring and communication transmitting antenna tower

The invention discloses a wind power generation network camera monitoring and communication transmitting antenna tower and belongs to the technical field of wind power energy. The inner ventilation wind pulling force is utilized to enable ground air flow to pass through the inside of a tower seat, a tower column and a tower column head to be discharged from an air outlet to push a turbo type spherical air wheel and a wind scoop capable of being opened and closed automatically in the wind direction to rotate to guide a natural air source to push the air wheel to rotate from the upper portion, the middle portion, the lower portion and the inside, and the power generation capability is improved. The wind scoop is closed automatically in the wind direction, and wind direction resistance is reduced. A wind fixing ball enables the ground air flow to rise in the spiral tornado type from the surface of the wind fixing ball to generate spiral rotating torque. A wind power generator is utilized as a main power supply, a mains supply is utilized as a reserve power supply, the network camera monitoring and communication transmitting anti-war anti-disaster capability is improved, safety operation of urban monitoring and communication transmitting is ensured, and the tower saves energy and is environmentally friendly.
Owner:杭州爱纬斯电子有限公司

Dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption

The invention discloses a dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption. The dust-removing air purifier comprises a casing as well as an anion emission needle plate, a stacked high-voltage electrostatic cell, a positive pole filtering body and a fan which are sequentially arranged, wherein anion emission needles which discharge towards the positive pole filtering body and form potential difference with the positive pole filtering body are arranged on the anion emission needle plate, the stacked high-voltage electrostatic cell comprises negative plates and positive plates, an air channel is formed between each negative plate and the adjacent positive plate, each negative plate comprises two insulators with high resistance and high voltage resistance and a conductor which is located between the two insulators and has low resistance, and the positive plates have electrical conductivity and can lead out charges carried by electronegative particles directly contacted with the positive plates in the air channels. According to the dust-removing air purifier, the wind resistance is low, the use noise is small, frequent cleaning is not required, single air purification efficiency is high, bacteria and viruses in air can be killed, the problems about wall blackening and influence on human health are solved, and secondary pollution caused by starting up is avoided.
Owner:DONGGUAN SANDIE ENVIRONMENTAL PROTECTION TECH CO LTD

Air conditioner and indoor unit thereof

The invention provides an air conditioner and an indoor unit thereof. The indoor unit of the air conditioner comprises a shell, a first air-guiding plate and a first driving device, wherein an air flue is arranged in the shell; an air outlet which is communicated with the air flue is formed in the shell; one end of the first air-guiding plate is rotationally arranged in the air flue; the first driving device is connected with the first air-guiding plate and is used for driving the first air-guiding plate to rotate; the first air-guiding plate can completely rotate to the outer side of the air outlet. Compared with the condition that the first air-guiding plate is fully located in the air flue or only can locally stretch to the outer side of the air outlet, the condition that the first air-guiding plate can completely stretch to the outer side of the air outlet according to the indoor unit of the air conditioner provided by the invention has the following advantages: on the one hand, the air resistance to the air flow caused by the first air-guiding plate located in the air flue can be reduced, so that the air supply volume can be increased and the air supply noise can be lowered, on the other hand, a function of prolonging the air flue can be achieved after the first air-guiding plate completely stretches out of the air flue, so that the air supply distance is prolonged and the air-blowing comfort level of the air conditioner is increased.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Automobile steering assisting aerodynamics external member

The invention discloses an automobile steering assisting aerodynamics external member which comprises two tail wing structures, two lifting passages and a hydraulic pipeline, wherein the tail wing structures are positioned in the lifting passages, and comprise main wings, auxiliary wings and driving mechanisms; the main wings and the auxiliary wings are arranged parallelly; the main wings are positioned below the auxiliary wings; the front ends of the auxiliary wings are close to the tail ends of the main wings; end plates are respectively arranged on the same side ends of the main wings and the auxiliary wings; the main wings are fixedly connected with the end plates; the auxiliary wings are rotationally connected with the end plates; the driving mechanisms comprise main wing cylinders, auxiliary wing cylinders and bases; rotating assisting cylinders are arranged on the bases; the hydraulic pipeline comprises a hydraulic pump, a main wing pipeline used for connecting or disconnecting the main wing cylinders synchronously, an auxiliary wing pipeline and a rotating assisting pipeline used for independently connecting or disconnecting each rotating assisting cylinder; strip-shaped through holes are formed in the front sides of the end plates and positioned above the auxiliary wings. The invention aims to provide the automobile steering assisting aerodynamics external member, which can adjust lower pressure and air resistance on the left side and the right side of the automobile tail to improve the adhesion property of an automobile and reduce tire load.
Owner:ZHEJIANG SCI-TECH UNIV
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