CN114454972B - Active differential pressure type power generation tail wing - Google Patents

Active differential pressure type power generation tail wing Download PDF

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Publication number
CN114454972B
CN114454972B CN202111618363.8A CN202111618363A CN114454972B CN 114454972 B CN114454972 B CN 114454972B CN 202111618363 A CN202111618363 A CN 202111618363A CN 114454972 B CN114454972 B CN 114454972B
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China
Prior art keywords
empennage
tail wing
throw switch
pole double
automobile
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Active
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CN202111618363.8A
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Chinese (zh)
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CN114454972A (en
Inventor
刘邵勋
殷承良
潘铮
李博远
牛志华
王荣蓉
杨俊辉
洪源
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Shanghai Jiaotong University
Shanghai Intelligent and Connected Vehicle R&D Center Co Ltd
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Shanghai Jiaotong University
Shanghai Intelligent and Connected Vehicle R&D Center Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B62D35/007—Rear spoilers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/006—Converting flow of air into electric energy, e.g. by using wind turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82—Elements for improving aerodynamics

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides an active differential pressure type power generation empennage which is arranged on a vehicle main body and comprises a left empennage bracket, a right empennage bracket and an empennage plane fixed at the top ends of the left empennage bracket and the right empennage bracket, wherein the bottom ends of the left empennage bracket and the right empennage bracket are respectively fixed at the left side and the right side of the surface of the vehicle main body, and a plurality of guide fans which are symmetrical left and right and have the same structure are arranged on the empennage plane. Compared with the prior art, the invention can ensure the stability of the vehicle in the driving process, improve the curve control capability and the vehicle endurance capability of the vehicle, and simultaneously reduce the normal driving resistance of the vehicle.

Description

Active differential pressure type power generation tail wing
Technical Field
The invention relates to the technical field of automobile empennages, in particular to an active differential pressure type power generation empennage.
Background
The automobile can be subjected to air force in three directions of longitudinal direction, lateral direction and vertical rising during normal running. Generally, the faster the vehicle speed, the more obvious the influence of air resistance on the vehicle, and the tail wing of the vehicle can enable the vehicle to generate a fourth acting force, namely the adhesive force of the vehicle to the ground, and the force can counteract a part of vehicle lift force caused by the difference of the flow velocity of the gas on the surface and the bottom of the vehicle, so as to effectively inhibit the vehicle from floating upwards. To achieve the actual effect of the tail fin, the vehicle often needs to reach a higher speed. However, the presence of the tail fin increases the running resistance of the vehicle during routine use of the vehicle or when excessive vehicle downforce is not required.
The tail wing height and the windward angle of the existing active adjustable tail wing structure are automatically adjusted by additionally arranging a servo mechanism at the tail part of an automobile, the tail wing can be closed in the mode when the automobile speed is low, the wind resistance is reduced, and the tail wing is lifted when the automobile reaches a certain speed and needs to be pressed down, so that the function is exerted. The method basically solves the problem of wind resistance increase caused by the empennage in the low-speed running state of the automobile, but still has the following problems:
(1) The increase of corresponding servo equipment causes the weight increase of the vehicle, and the fuel economy of the vehicle is influenced;
(2) Any servo mechanism can only play a role after needing corresponding time to reach the position of the designated tail wing, and when the automobile runs at the speed of needing the tail wing to provide downward pressure, the delay effect of the active tail wing can generate great influence on the running characteristic of the automobile and even the safety;
(3) The existing tail wing adjusting range is only limited to the integral downward pressure adjustment of the vehicle, and the existing tail wing adjusting range cannot be specially adjusted according to the downward pressure requirements of the left side and the right side of the vehicle;
(4) The tail fin of an automobile needs to reach a corresponding speed to play a role, and when the automobile runs at a relatively low speed, the role of the tail fin is greatly weakened, for example, if the automobile runs at a low speed with a large downward pressure requirement, such as low-speed acceleration or a wet road surface, the tail fin is limited by a slow air flow rate near the automobile, and cannot play a role of the tail fin.
(5) The energy conservation of the vehicle is realized by reducing the wind resistance, and the reutilization of the wind energy of the vehicle cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an active differential pressure type power generation tail wing, which can ensure the stability of a vehicle in the driving process, improve the curve control capability and the vehicle endurance capability of the vehicle and reduce the normal driving resistance of the vehicle.
The purpose of the invention can be realized by the following technical scheme:
the invention provides an active differential pressure type power generation empennage which is arranged on a vehicle main body and comprises a left empennage bracket, a right empennage bracket and an empennage plane fixed at the top ends of the left empennage bracket and the right empennage bracket, wherein the bottom ends of the left empennage bracket and the right empennage bracket are respectively fixed at the left side and the right side of the surface of the vehicle main body, and a plurality of guide fans which are symmetrical left and right and have the same structure are arranged on the empennage plane.
Preferably, the empennage plane is provided with a mounting hole for mounting the guide fan.
Preferably, every the water conservancy diversion fan all including locating water conservancy diversion fan flabellum and fin motor in the mounting hole, the bottom of water conservancy diversion fan flabellum with fin motor's pivot fixed connection.
Preferably, the empennage motor is connected with a control module.
Preferably, the control module comprises a storage battery, an inverter, a rectification voltage regulator, a controller, and a single-pole double-throw switch K1 and a single-pole double-throw switch K2, the opening and closing directions of which are controlled by the controller, the controller is connected with the tail motor and controls the rotation direction of the tail motor, the immovable end of the single-pole double-throw switch K1 is connected with the storage battery, and the immovable end of the single-pole double-throw switch K2 is connected with the tail motor;
when the moving ends of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are respectively connected with the two ends of the rectification voltage regulator, the tail wing motor, the rectification voltage regulator and the storage battery form a loop; when the moving ends of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are respectively connected with the two ends of the inverter, the empennage motor, the inverter and the storage battery form a loop.
Preferably, when the car needs the fin to provide the overdraft, single-pole double-throw switch K1 with single-pole double-throw switch K2's movable end is connected with the both ends of dc-to-ac converter respectively for fin motor, dc-to-ac converter and battery form the return circuit, and controller control the fin motor drives the water conservancy diversion fan rotation, makes the planar upper surface air-out of fin, the planar lower surface air inlet of fin increases the planar upper and lower pressure difference of fin, and then the overdraft of increase car.
Preferably, when the automobile needs the tail fin to provide downward pressure and the automobile turns, the controller controls the guide fan on one side close to the turning center to rotate, so that the pressure difference between the upper surface and the lower surface of the tail fin plane at the position of the guide fan on one side close to the turning center is increased, and the downward pressure of the wheels on one side close to the turning center of the automobile is increased.
Preferably, when the automobile does not need the tail fin to provide downward pressure and the automobile is in a running state, the controller controls all tail fin motors to drive all flow guide fans to rotate, so that the air pressure difference between the upper surface and the lower surface of the tail fin plane is reduced, and the running resistance of the automobile is reduced.
Preferably, a lower threshold value of the electric quantity of the storage battery is set, when the automobile does not need the tail fin to provide downward pressure and is in a running state, and the electric quantity of the storage battery is lower than the lower threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectification voltage regulator, so that a tail fin motor, the rectification voltage regulator and the storage battery form a loop, and the storage battery is charged by utilizing the running air flow of the automobile;
when the automobile does not need the tail wing to provide downward pressure, and the electric quantity of the storage battery is larger than the upper threshold value when the automobile is in a running state, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the inverter, so that the tail wing motor, the inverter and the storage battery form a loop.
Preferably, when the automobile stops and the electric quantity of the storage battery is lower than a lower threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectification voltage regulator, so that the tail motor, the rectification voltage regulator and the storage battery form a loop.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the control module and the empennage motor controlled by the control module are arranged, and the rotation of the fan blades of the diversion fan and the working mode of the empennage motor are adjusted, so that the wind energy blowing over the empennage during the running process of the vehicle or even when the vehicle is stopped is utilized, the electric energy supplement of the storage battery is realized, and the load of an engine during the running process of the vehicle is reduced.
2. According to the invention, through arranging the control module and the empennage motor controlled by the control module, the separate adjustment of the down pressure at two sides of the vehicle can be realized aiming at different working conditions of the vehicle by adjusting the rotation of the fan blades of the guide fan.
3. The invention can play a role of the tail wing when the vehicle runs at low speed by adjusting the rotating speed of the diversion fan.
4. By arranging the guide fan, the invention can realize the function of the active tail at the present stage and simultaneously avoid the problem of weight increase caused by the installation of an active tail servo mechanism in the prior art.
Drawings
Fig. 1 is a schematic structural diagram of an active differential pressure type power generation tail wing according to the present embodiment;
FIG. 2 is a schematic structural diagram of the induced draft fan of the embodiment shown in FIG. 1;
FIG. 3 is a flow diagram of air being directed by the guide fan of the embodiment of FIG. 1;
FIG. 4 is an air flow diagram for dredging by using the guide fan of the embodiment shown in FIG. 1;
FIG. 5 is a schematic structural diagram of a control module of the embodiment shown in FIG. 1;
labeled as: 1. the left empennage bracket, the right empennage bracket, the first guide fan, the second guide fan, the third guide fan, the empennage plane, the second guide fan, the third guide fan, the empennage motor and the empennage motor are sequentially arranged.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1, the present embodiment provides an active differential pressure type power generation tail, which includes a left tail support 1, a right tail support 2, a first guiding fan 3, a second guiding fan 4, a third guiding fan 5, a tail plane 6 and a control module.
The bottom ends of the left empennage support 1 and the right empennage support 2 are respectively fixed on the left side and the right side of the surface of the vehicle body, empennage planes 6 are fixed on the top ends of the left empennage support 1 and the right empennage support 2, a plurality of guide fans which are symmetrical left and right and have the same shape and structure are arranged on the empennage planes 6, and a plurality of mounting holes for mounting the guide fans are formed in the empennage planes 6.
Specifically, when the vehicle is a trunk-equipped vehicle, all the fin mounts are mounted on the surface of the trunk of the vehicle, and when the vehicle is a non-trunk-equipped vehicle such as a racing vehicle, all the fin mounts are mounted on the surface of the rear body of the racing vehicle.
Referring to fig. 2, each of the guide fans includes a guide fan blade 7 and an empennage motor 8 disposed in the mounting hole, a bottom of the guide fan blade 7 is fixedly connected to a rotating shaft of the empennage motor 8, and the rotation of the guide fan blade 7 is controlled by the empennage motor 8.
When the automobile runs, the air flow rate of the upper surface of the tail plane 6 is lower than that of the lower surface of the tail plane 6, so that the pressure of the upper surface of the tail plane 6 is higher than that of the lower surface of the tail plane 6, and the resistance and the downward pressure to the automobile are generated. When the tail motor 8 rotates in a certain direction, such as clockwise rotation, the diversion fan is driven to rotate clockwise, and at the moment, the air flows as shown in fig. 3, the air enters from the lower surface of the tail plane 6 at the diversion fan, and the air exits from the upper surface of the tail plane 6 at the diversion fan, so that the air pressure difference between the upper surface and the lower surface of the tail plane 6 at the diversion fan is increased, the air downforce is increased, and the air diversion is realized; when the tail motor 8 rotates anticlockwise, the diversion fan is driven to rotate anticlockwise, at the moment, air flows as shown in the figure 4, air enters the upper surface of the tail plane 6 at the diversion fan, air exits the lower surface of the tail plane 6 at the diversion fan, the air pressure difference between the upper surface and the lower surface of the tail plane 6 at the diversion fan is weakened, the air downforce is weakened, and air dredging is achieved.
It is noted that the rotating direction of the tail motor 8 is set according to the installation orientation of the guide fan blades 7. In this embodiment, the empennage motor 8 rotates clockwise to drive the diversion fan to rotate clockwise to achieve air diversion.
Referring to fig. 5, the control module includes a battery, an inverter, a rectifier regulator, a controller, and a single-pole double-throw switch K1 and a single-pole double-throw switch K2 whose opening and closing directions are controlled by the controller, and the controller is connected to the tail motor 8 and controls the rotation direction of the tail motor 8. The immovable end of the single-pole double-throw switch K1 is connected with a storage battery, and the immovable end of the single-pole double-throw switch K2 is connected with a tail motor 8. When the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectification voltage regulator, the empennage motor 8, the rectification voltage regulator and the storage battery form a loop, and the airflow formed by the running of the vehicle is utilized to generate power for the storage battery; when the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the inverter, the empennage motor 8, the inverter and the storage battery form a loop, the rotating speed of the flow guide fan is adjusted according to the pressure requirement of the vehicle in actual operation, and the running stability of the vehicle is ensured.
The working principle of the active differential pressure type power generation empennage provided by the embodiment is as follows:
an upper threshold and a lower threshold of the battery capacity are set, respectively, and as an alternative embodiment, the upper threshold of the battery capacity is 90% of the battery capacity, and the lower threshold of the battery is 15% of the battery capacity.
When the vehicle does not require the tail fin to provide downforce,
working condition 1: when the automobile is in a running state and the electric quantity of the storage battery is lower than the lower threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectification voltage regulator, so that the tail motor 8, the rectification voltage regulator and the storage battery form a loop. The air flow generated in the running process of the vehicle is used for driving the empennage motor 8 to generate electric energy and charge the storage battery.
Because the automobile generator is the main power supply of the automobile and is driven by the automobile engine, the automobile generator charges the storage battery in the normal running process of the automobile. In the working condition, the pressure difference between the upper surface and the lower surface of the tail wing plane 6 is utilized to drive the diversion fan to rotate anticlockwise, the air pressure difference between the upper surface and the lower surface of the tail wing plane 6 is dredged, the vehicle running resistance caused by the tail wing modeling is reduced, and the increase of the endurance mileage of the automobile is facilitated. Meanwhile, the generated electric energy replaces an automobile generator to charge the storage battery, and replaces the automobile generator to charge the storage battery, so that the running load of an automobile engine is reduced.
Working condition 2: when the automobile is in a running state and the electric quantity of the storage battery is higher than the upper threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the inverter, so that the empennage motor 8, the inverter and the storage battery form a loop, and the controller controls all the empennage motors 8 to rotate anticlockwise to drive all the diversion fans to rotate anticlockwise, further the airflow pressure difference of the upper surface and the lower surface of the empennage plane 6 is dredged, the running resistance caused by the fixed empennage modeling is reduced as much as possible, and the endurance mileage of the automobile is increased.
Working condition 3: when the automobile stops, and the electric quantity of the storage battery is lower than the lower threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the rectification voltage regulator, so that the empennage motor 8, the rectification voltage regulator and the storage battery form a loop, wind energy and even natural wind energy generated by surrounding vehicles are converted into electric energy, the electric quantity of the storage battery is maintained, and the phenomenon that the storage battery is short of electricity due to long-time parking of the vehicles is avoided.
Working condition 4: when the automobile is in a running state and no steering requirement exists, on the premise of ensuring the stability of the automobile, the controller controls all the empennage motors 8 to rotate anticlockwise to drive all the diversion fans to rotate anticlockwise, so that the air flow pressure difference between the upper surface and the lower surface of the empennage plane 6 is dredged, the running resistance of the automobile is reduced as much as possible, the energy-saving requirement of the automobile is met, and the extreme speed performance of the automobile is increased.
When the automobile needs the empennage to provide down pressure, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the inverter, so that the empennage motor 8, the inverter and the storage battery form a loop.
Working condition 5: when the automobile is in a running state and the automobile turns left, the grip force of tires on the left side of the automobile is reduced due to gravity center deviation of the automobile, the control module controls the first flow guide fan 3 to rotate clockwise, so that the pressure difference between the upper surface and the lower surface on the left side of the empennage plane 6 is increased to increase the downward pressure of wheels on the left side, and meanwhile, the second flow guide fan 4 and the third flow guide fan 5 rotate according to actual conditions to maintain the downward pressure on the right side of the automobile, so that the steering stability of the automobile is increased, and the left turning of the automobile is assisted.
Working condition 6: when the automobile is in a running state and the automobile turns right, the tire grip force on the right side of the automobile is reduced due to gravity center shift, the control module controls the third diversion fan 3 to rotate clockwise, so that the pressure difference between the upper surface and the lower surface of the right side of the empennage plane 6 is increased to increase the downward pressure of wheels on the right side, and meanwhile, the second diversion fan 4 and the first diversion fan 3 rotate according to actual conditions to maintain the downward pressure on the left side of the automobile, so that the steering stability of the automobile is increased, and the right turning of the automobile is assisted.
Working condition 7: when the automobile is in a running state and the automobile has a braking requirement, the control module controls all the tail wing motors 8 to rotate clockwise, so that all the diversion fans are driven to rotate clockwise, the pressure difference between the upper surface and the lower surface of the tail wing plane 6 is increased, and sufficient downward pressure and braking force are provided for the automobile.
Working condition 8: when the automobile has a need of emergency acceleration, the control module drives all the diversion fans to rotate clockwise by controlling all the empennage motors 8 to rotate clockwise according to indexes such as a vehicle driving mode and whether tires slide, so that the pressure difference between the upper surface and the lower surface of the empennage plane 6 is increased, and the ground grabbing force is provided for the automobile to the maximum extent.
Specifically, the control module controls the rotation of the tail motor 8 according to the driving mode of the vehicle, whether the tire is slipping, and the like.
Working condition 9: when the automobile runs in severe weather, the adhesive force of the running road surface of the automobile is low at the moment, the control module drives all the diversion fans to rotate clockwise by controlling all the empennage motors 8 to rotate clockwise, the pressure difference between the upper surface and the lower surface of the empennage plane 6 is increased, the downward pressure of the automobile is increased, and the stability of the automobile is kept.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.

Claims (6)

1. The active differential pressure type power generation tail wing is arranged on a vehicle body and is characterized by comprising a left tail wing bracket (1), a right tail wing bracket (2) and a tail wing plane (6) fixed to the top ends of the left tail wing bracket (1) and the right tail wing bracket (2), wherein the bottom ends of the left tail wing bracket (1) and the right tail wing bracket (2) are respectively fixed to the left side and the right side of the surface of the vehicle body, and a plurality of guide fans which are symmetrical left and right and have the same shape and structure are arranged on the tail wing plane (6);
the empennage plane (6) is provided with a mounting hole for mounting the flow guide fan;
each guide fan comprises a guide fan blade (7) and an empennage motor (8) which are arranged in the mounting hole, and the bottom of the guide fan blade (7) is fixedly connected with a rotating shaft of the empennage motor (8);
the empennage motor (8) is connected with a control module;
the control module comprises a storage battery, an inverter, a rectification voltage regulator, a controller, a single-pole double-throw switch K1 and a single-pole double-throw switch K2, the opening and closing directions of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are controlled by the controller, the controller is connected with the empennage motor (8) and controls the rotating direction of the empennage motor (8), the immovable end of the single-pole double-throw switch K1 is connected with the storage battery, and the immovable end of the single-pole double-throw switch K2 is connected with the empennage motor (8);
when the moving ends of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are respectively connected with the two ends of the rectification voltage regulator, the tail wing motor (8), the rectification voltage regulator and the storage battery form a loop; when the moving ends of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are respectively connected with the two ends of the inverter, the empennage motor (8), the inverter and the storage battery form a loop.
2. The active differential pressure type power generation empennage of claim 1, wherein when a car needs an empennage to provide downward pressure, the moving ends of the single-pole double-throw switch K1 and the single-pole double-throw switch K2 are respectively connected with two ends of an inverter, so that an empennage motor (8), the inverter and a storage battery form a loop, and a controller controls the empennage motor (8) to drive a diversion fan to rotate, so that air is discharged from the upper surface of the empennage plane (6), air is introduced from the lower surface of the empennage plane (6), and the upper and lower pressure difference of the empennage plane (6) is increased, thereby increasing the downward pressure of the car.
3. The active differential pressure type power generation tail wing as claimed in claim 2, wherein when the automobile needs the tail wing to provide the downward pressure and the automobile turns, the controller controls the diversion fan on the side close to the turning center to rotate, so that the pressure difference between the upper and lower surfaces of the tail wing plane (6) at the diversion fan on the side close to the turning center is increased, thereby increasing the downward pressure of the wheels on the side close to the turning center.
4. The active differential pressure type power generation tail wing of claim 1, wherein when the automobile does not need the tail wing to provide downward pressure and is in a running state, the controller controls all tail wing motors (8) to drive all guide fans to rotate, so that the air pressure difference between the upper surface and the lower surface of the tail wing plane (6) is reduced, and the running resistance of the automobile is reduced.
5. The active differential pressure type power generation tail wing according to claim 4, characterized in that a lower threshold value of the battery power is set, when the automobile does not need the tail wing to provide a downward pressure and the automobile is in a running state, and the battery power is lower than the lower threshold value, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectifier voltage regulator, so that the tail wing motor (8), the rectifier voltage regulator and the battery form a loop, and the battery is charged by using the vehicle running air flow;
when the automobile does not need the tail wing to provide downward pressure, and the electric quantity of the storage battery is larger than the upper threshold value when the automobile is in a running state, the controller controls the movable end of the single-pole double-throw switch K1 and the movable end of the single-pole double-throw switch K2 to be respectively connected with the two ends of the inverter, so that the tail wing motor (8), the inverter and the storage battery form a loop.
6. The active differential pressure type power generation tail wing according to claim 1, characterized in that when the automobile stops and the battery capacity is lower than the lower threshold value, the controller controls the moving end of the single-pole double-throw switch K1 and the moving end of the single-pole double-throw switch K2 to be respectively connected with two ends of the rectifier voltage regulator, so that the tail wing motor (8), the rectifier voltage regulator and the battery form a loop.
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