CN113942596B - Device and method for adjusting wind noise and wind resistance of engine hood - Google Patents

Device and method for adjusting wind noise and wind resistance of engine hood Download PDF

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Publication number
CN113942596B
CN113942596B CN202111124529.0A CN202111124529A CN113942596B CN 113942596 B CN113942596 B CN 113942596B CN 202111124529 A CN202111124529 A CN 202111124529A CN 113942596 B CN113942596 B CN 113942596B
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plate
motor
rotating plate
hood
adjusting
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CN113942596A (en
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赵花垒
王连会
魏伟
毛光军
岳洋
张现杰
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Zhejiang Geely Holding Group Co Ltd
Geely Automobile Research Institute Ningbo Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Geely Automobile Research Institute Ningbo Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
    • B62D37/02—Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

The invention discloses a hood wind noise and wind resistance adjusting device and an adjusting method thereof, and the hood wind noise and wind resistance adjusting device comprises a vehicle speed monitoring device, a control device, a driving device and an adjusting device, wherein the vehicle speed monitoring device and the control device are installed in a whole vehicle control system, the driving device is installed in a vehicle head, the adjusting device is installed on a hood and is positioned in front of a front windshield, the vehicle speed monitoring device is used for monitoring the running speed of a vehicle, and the control device is used for controlling the driving device to adjust at least one of the length of the adjusting device extending out of the hood and the deflection angle relative to the front windshield according to the running speed so as to reduce the wind noise and the wind resistance of the hood. The invention can actively adjust the rotation angle of the rotating plate and the extension amount of the extension plate in the rear edge structure of the engine hood according to different vehicle speeds so as to reduce the wind noise and the wind resistance of the engine hood of the automobile.

Description

Device and method for adjusting wind noise and wind resistance of engine hood
Technical Field
The invention relates to the technical field of automobile parts, in particular to a device and a method for adjusting wind noise and wind resistance of an engine hood.
Background
With the rapid development of the automobile industry and the continuous popularization of vehicles, the perception requirement of people on the quality of vehicles is higher and higher, the design of a rear edge structure of an engine hood is greatly influenced by wind noise and wind resistance, at present, many customers who sell vehicle types complain that high-speed front windshield glass is high in noise and oil consumption or the endurance of an electric vehicle is poor, and due to the fact that the design of the area is limited by regulations, safety, visual field and appearance, the structure meeting the requirements of the wind noise and the wind resistance is difficult to design, the traditional vehicles are often accepted by sacrificing the performance of the wind noise and the wind resistance, and the problem cannot be really solved.
Disclosure of Invention
In view of this, the present invention provides a device and a method for adjusting wind noise and wind resistance of a hood, which can actively adjust a rotation angle of a rotating plate and an extension amount of an extension plate in a rear edge structure of the hood according to different vehicle speeds to reduce wind noise and wind resistance of an automobile.
The invention provides a hood wind noise and wind resistance adjusting device, which comprises a driving device and an adjusting device, wherein the adjusting device is arranged on a hood and positioned in front of a front windshield; the adjusting device comprises a rotating plate, the driving device comprises a first motor, and the deflection angle of the rotating plate can be adjusted under the driving of the first motor; the rotating plate comprises a first rotating plate, a second rotating plate and a rotating cylinder, the first rotating plate and the second rotating plate are respectively installed on two sides of the rotating cylinder, the first rotating plate is located outside the engine hood, the second rotating plate is located inside the engine hood and is in transmission connection with the first motor, and the rotating cylinder is installed on the engine hood and can rotate relative to the engine hood.
The vehicle speed monitoring device and the control device are both installed in a whole vehicle control system, the vehicle speed monitoring device is used for monitoring the running speed of a vehicle, and the control device is used for controlling the driving device to adjust at least one of the length and the deflection angle of the adjusting device according to the running speed.
Furthermore, the rear end of the engine hood is provided with a mounting groove and a fixing rod for mounting the rotating plate, the fixing rod is mounted in the middle of the mounting groove and is parallel to the mounting groove, and the rotating cylinder is sleeved outside the fixing rod.
Further, the adjusting device comprises an extension plate, the driving device comprises a second motor, and the extension length of the extension plate can be adjusted under the driving of the second motor.
Furthermore, the extension plate comprises a first extension plate and a second extension plate, the first extension plate is in transmission connection with the second motor and can be driven by the second motor to extend outwards or contract inwards, and the second extension plate extends from the top end of the first extension plate to the front windshield and forms an included angle with the first extension plate.
Further, a slide rail structure is arranged between the rotating plate and the extending plate, the slide rail structure comprises a slide bar and a slide groove, the slide bar is positioned on one of the rotating plate and the extending plate, the slide groove is positioned on the other one of the rotating plate and the extending plate, and one of the slide bar and the slide groove can slide relative to one of the slide bar and the slide groove under the driving of the second motor.
The invention also provides a method for adjusting the wind noise and the wind resistance of the engine cover, which comprises the following steps:
monitoring the running speed of the vehicle by using a vehicle speed monitoring device and transmitting a real-time vehicle speed signal to a control device;
the control device determines at least one of the length and the deflection angle of the adjusting device according to the real-time vehicle speed signal and the built-in control logic, and calculates the adjusting amount of the driving device;
the driving device operates according to the signal of the control device to adjust at least one of the length and the deflection angle of the adjusting device.
Further, the adjusting device comprises a rotating plate and an extending plate, the driving device comprises a first motor and a second motor, the control device controls the first motor to adjust the rotating angle of the rotating plate when the vehicle speed is more than or equal to 60km/h and less than 80km/h, controls the second motor to adjust the extending length of the extending plate when the vehicle speed is more than or equal to 80km/h and less than 120km/h, and controls the driving device to simultaneously adjust the rotating angle of the rotating plate and the extending length of the extending plate when the vehicle speed is more than or equal to 120 km/h.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a hood wind noise and wind resistance adjusting device and an adjusting method thereof.A driving device is used for adjusting the rotation angle of a rotating plate and the extension amount of an extension plate so as to reduce vortex and reduce wind resistance and wind noise, the rotation angle of the rotating plate and the extension amount of the extension plate are transmitted to a control device by a vehicle speed monitoring device, the control device is used for calculating according to real-time vehicle speed so as to transmit an adjusting signal to the driving device, and finally an adjusting plate in the driving device is used for executing the adjusting. The invention has simple operation and ensures the safety and the comfort of the driver when driving the vehicle.
Drawings
FIG. 1 is a schematic view of the position of an adjusting device according to the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the rotating plate according to the present invention;
FIG. 4 is a schematic view of the first rotating plate being flipped 180 degrees in accordance with the present invention;
FIG. 5 is a schematic view of the structure of the extension board and the slide bar of the present invention;
FIG. 6 is a schematic view of the structure of the mounting groove and the fixing rod of the engine cover according to the present invention;
FIG. 7 is a schematic view of a first adjustment state (the second motor and the second adjustment plate are not shown);
FIG. 8 is a schematic structural view of the second adjustment state (the first motor and the first adjustment plate are not shown);
FIG. 9 is a schematic structural diagram of a third adjustment state;
FIG. 10 is a flow chart of the tuning method of the present invention.
Wherein: 10-vehicle speed monitoring means; 20-a control device; 30-a drive device; 31-a first motor; 32-a second motor; 33-a first regulating plate; 34-a second regulating plate; 40-adjusting means; 41-rotating plate; 411-the first rotating plate; 412-a second rotating plate; 413-a rotating drum; 42-an extension plate; 421-a first extension plate; 422-a second extension plate; 50-a hood; 51-a mounting groove; 52-a fixation rod; 60-front windshield glass; 70-a slide rail structure; 71-a slider; 72-a chute; 80-wiper.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated in the present description are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the present invention provides a hood wind noise and wind resistance adjusting device, including a vehicle speed monitoring device 10, a control device 20, a driving device 30 and an adjusting device 40, wherein the vehicle speed monitoring device 10 and the control device 20 are both installed in a vehicle control system, the driving device 30 is installed inside a vehicle head, the adjusting device 40 is installed on a hood 50 and located in front of a front windshield 60, the vehicle speed monitoring device 10 is used for monitoring a running speed of a vehicle, and the control device 20 is used for controlling the driving device 30 to adjust at least one of a length of the adjusting device 40 extending out of the hood 50 and a deflection angle relative to the front windshield 60 according to the running speed so as to reduce the hood wind noise and the wind resistance.
Referring to fig. 2 and 3, the adjusting device 40 includes a rotating plate 41 and an extending plate 42, the extending plate 42 includes a first extending plate 421 and a second extending plate 422, the first extending plate 421 is parallel to the front windshield 60, the second extending plate 422 extends from the top end of the first extending plate 421 to the front windshield 60 and forms an included angle with the first extending plate 421, the included angle is set according to practical situations as long as the operation of the front windshield 60 and the wiper 80 is not disturbed, the rotating plate 41 includes a first rotating plate 411, a second rotating plate 412 and a rotating cylinder 413, the first rotating plate 411 and the second rotating plate 412 are both parallel to the front windshield 60 and the first rotating plate 411 and the second rotating plate 412 are respectively installed on the upper side and the lower side of the rotating cylinder 413, the first rotating plate 411 is located outside the engine cover 50, the second rotating plate 412 is located inside the engine cover 50, the rotating cylinder 413 can rotate towards the rear of the vehicle in a clockwise direction or rotate towards the front of the vehicle in an anticlockwise direction, and the first rotating plate 411 and the second rotating plate 412 are driven to rotate in the rotating process.
Referring to fig. 4 and 5, a sliding rail structure 70 is further included between the first rotating plate 411 and the first extending plate 421, the sliding rail structure 70 includes a sliding bar 71 and a sliding groove 72, the sliding bar 71 is located on a side of the first extending plate 421 facing the first rotating plate 411, the sliding groove 72 is located on a side of the first rotating plate 411 facing the first extending plate 421, or the sliding bar 71 is located on a side of the first rotating plate 411 facing the first extending plate 421, the sliding groove 72 is located on a side of the first extending plate 421 facing the first rotating plate 411, and the sliding bar 71 can slide relative to the sliding groove 72 under an external force, so that the first extending plate 421 can extend outward or retract inward.
Referring to fig. 6, a mounting groove 51 extending in the vehicle width direction and a fixing rod 52 for mounting the rotating plate 41 are disposed on the rear end of the engine cover 50, the fixing rod 52 is mounted in the middle of the mounting groove 51 and parallel to the mounting groove 51, a rotating cylinder 413 is sleeved outside the fixing rod 52 on the engine cover 50, and the rotating cylinder 413 is matched with the fixing rod 52 in size and can rotate relative to the fixing rod 52, so as to drive the first rotating plate 411 and the second rotating plate 412 to rotate.
Referring to fig. 1, 7, 8 and 9, the driving device 30 includes a first motor 31, a first adjusting plate 33, a second motor 32 and a second adjusting plate 34, the first adjusting plate 33 is driven by the first motor 31 to adjust the rotation angle of the rotating plate 41, and the second adjusting plate 34 is driven by the second motor 32 to adjust the extending amount of the extending plate 42. The first adjusting plate 33 has a rotation function under the driving of the first motor 31, and the second adjusting plate 33 has an extension function under the driving of the second motor 32, so that if the adjusting device 40 only needs to rotate the plate 41, the first motor 31 and the first adjusting plate 33 are required to work in the driving device 30, if the adjusting device 40 only needs to work in the extension plate 42, the second motor 32 and the second adjusting plate 34 are required to work in the driving device 30, and if the adjusting device 40 needs to simultaneously work in the rotation plate 41 and the extension plate 42, the first motor 31, the first adjusting plate 33, the second motor 32 and the second adjusting plate 34 are required to work in the driving device 30. Specifically, whether the rotating plate 41 works or the extending plate 42 works or both the rotating plate 41 and the extending plate 42 work is judged according to a vehicle speed signal transmitted by the vehicle speed monitoring device 10 by the control device 20, generally, when the vehicle speed is greater than or equal to 60km/h and less than 80km/h, the rotating plate 41 works, when the vehicle speed is greater than or equal to 80km/h and less than 120km/h, the extending plate 42 works, and when the vehicle speed is greater than or equal to 120km/h, the rotating plate 41 and the extending plate 42 work together.
Referring to fig. 7, the adjusting device 40 only needs to rotate the plate 41, the driving device 30 needs to operate the first motor 31 and the first adjusting plate 33, the first adjusting plate 33 is fixedly connected to the driving shaft of the first motor 31, the first motor 31 is driven to rotate, the top end of the first adjusting plate 33 contacts the second rotating plate 412, after the driving, the first adjusting plate 33 pushes the second rotating plate 412 to rotate in the direction (clockwise) close to the front windshield 60 to drive the rotating cylinder 413 to rotate, and the rotating cylinder 413 drives the first rotating plate 411 to rotate in the direction away from the front windshield 60. It should be noted that the rotation angle of the first rotating plate 411 is less than or equal to 60 °, which not only does not affect the operation of the wiper 80, but also can reduce the eddy current and reduce the wind resistance and the wind noise.
Referring to fig. 8, the adjusting device 40 only needs to operate the extending plate 42, the driving device 30 needs to operate the second motor 32 and the second adjusting plate 34, and the second adjusting plate 34 is in transmission connection with the second motor 32 through a rack and pinion or a lead screw nut, so that the rotation of the second motor 32 is converted into the linear motion of the second adjusting plate 34. When the second adjusting plate 34 is connected to the second motor 32 in a rack-and-pinion manner, a rack is provided on the second adjusting plate 34, and a pinion engaged with the rack is provided on an output shaft of the second motor 32, so that the second adjusting plate 34 can extend outward or retract inward relative to the hood 50 according to the rotation direction of the second motor 32. When the second adjustment plate 34 is connected to the second motor 32 by means of a lead screw nut, a lead screw is provided on the second adjustment plate 34, and a nut is provided on an output shaft of the second motor 32, so that the second adjustment plate 34 can be extended outward or retracted inward relative to the hood 50 by adjusting the rotation direction of the second motor 32. It should be noted that, when the second adjusting plate 34 and the second motor 32 are connected by the rack and pinion and the lead screw nut, the installation angle of the second motor 32 relative to the second adjusting plate 34 is different. The top end of the second adjusting plate 34 is connected with the bottom end of the first extending plate 421, after the second motor 32 rotates, the second adjusting plate 34 pushes the sliding strip 71 on the first extending plate 421 to slide upwards relative to the sliding groove 72 on the first rotating plate 411, and the extending amount of the first extending plate 421 is adjusted according to the actual vehicle speed to reduce the eddy current.
Referring to fig. 9, the adjusting device 40 requires the rotating plate 41 and the extending plate 42 to work simultaneously, and the driving device 30 includes a first motor 31, a first adjusting plate 33, a second motor 32, and a second adjusting plate 34. The first adjusting plate 33 has a rotating function under the driving of the first motor 31, the top end of the first adjusting plate 33 is connected to the second rotating plate 412, after the driving, the first adjusting plate 33 pushes the second rotating plate 412 to rotate in a direction close to the front windshield 60, so as to drive the rotating cylinder 413 to rotate, and the rotating cylinder 413 drives the first rotating plate 411 to rotate in a direction away from the front windshield 60. It should be noted that the rotation angle of the first rotating plate 411 is less than or equal to 60 °, which not only does not affect the operation of the wiper 80, but also can reduce the eddy current and reduce the wind resistance and the wind noise; the second adjusting plate 34 has a telescopic function under the driving of the second motor 32, the top end of the second adjusting plate 34 is connected with the bottom end of the first extending plate 421, after the second motor 32 rotates, the second adjusting plate 34 pushes the sliding strip 71 on the first extending plate 421 to slide relative to the sliding groove 72 on the first rotating plate 411, the extending amount of the first extending plate 421 is adjusted according to the actual vehicle speed to reduce the eddy current, in the process, the second extending plate 422 can reduce the cavity between the engine cover 50 and the front windshield glass, the effect of reducing the eddy current can be achieved, and the wind resistance and the wind noise are reduced.
Referring to fig. 10, the present invention further provides an adjusting method of the above mentioned hood wind noise and wind resistance adjusting device, which comprises the following steps:
step 1: after the vehicle is started, the vehicle speed monitoring device 10 monitors the running speed of the vehicle and transmits a real-time vehicle speed signal to the control device 20;
step 2: the control device 20 determines at least one of the extension length of the extension plate 42 and the deflection angle of the rotating plate 41 in the adjusting and adjusting device 40 according to the real-time vehicle speed signal and the built-in control logic, and calculates the adjusting amount of the driving device 30;
and step 3: the first motor 31, the second motor 32, the first adjusting plate 33 and the second adjusting plate 34 in the driving device 30 are operated according to the signal of the control device 20 to adjust at least one of the extension length of the extension plate 42 and the deflection angle of the rotating plate 41 in the adjusting device 40;
step 3.1: when the vehicle speed is greater than or equal to 60km/h and less than 80km/h, the control logic of the control device 20 calculates the real-time vehicle speed into the angle of the rotating plate 41 required to rotate, and transmits the angle to the driving device 30, and the first motor 31 and the first adjusting plate 33 in the driving device 30 adjust the rotating angle of the rotating plate 41 after receiving signals, so as to reduce wind resistance and wind noise;
step 3.2: when the vehicle speed is greater than or equal to 80km/h and less than 120km/h, the control logic of the control device 20 calculates the real-time vehicle speed into the extension amount of the extension plate 42 to be extended, and transmits the extension amount to the driving device 30, and the second motor 32 and the second adjusting plate 34 in the driving device 30 receive signals and then adjust the extension amount of the extension plate 42, so as to reduce wind resistance and wind noise;
step 3.3: when the vehicle speed is greater than or equal to 120km/h, the control logic of the control device 20 calculates the real-time vehicle speed into the angle that the rotating plate 41 needs to rotate and the extension amount that the extension plate 42 needs to extend, and transmits the angle to the driving device 30, and the first motor 31 and the second motor 32 of the driving device 30 receive the signals and then adjust the rotating angle of the rotating plate 41 and the extension amount of the extension plate 42, so as to reduce wind resistance and wind noise.
It can be known from the above description that the present invention provides a device and a method for adjusting wind noise and wind resistance of a bonnet, wherein a driving device is used to adjust the rotation angle of a rotating plate and the extension amount of an extension plate to reduce eddy currents and reduce wind resistance and wind noise, the rotation angle of the rotating plate and the extension amount of the extension plate are transmitted to a control device by a vehicle speed monitoring device, the control device is used to transmit an adjustment signal to the driving device according to the calculation of a real-time vehicle speed, and finally the adjustment signal is executed by an adjustment plate in the driving device. The invention has simple operation and ensures the safety and the comfort of the driver when driving the vehicle.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. A hood wind noise and wind resistance adjusting device is characterized by comprising a driving device (30) and an adjusting device (40), wherein the adjusting device (40) is installed on a hood (50) and is positioned in front of a front windshield (60), the driving device (30) is installed inside a vehicle head, and at least one of the length of the adjusting device (40) extending out of the hood (50) and the deflection angle relative to the front windshield (60) can be adjusted under the driving of the driving device (30);
the adjusting device (40) comprises a rotating plate (41), the driving device (30) comprises a first motor (31), and the deflection angle of the rotating plate (41) can be adjusted under the driving of the first motor (31); the rotating plate (41) comprises a first rotating plate (411), a second rotating plate (412) and a rotating cylinder (413), the first rotating plate (411) and the second rotating plate (412) are respectively installed on two sides of the rotating cylinder (413), the first rotating plate (411) is located outside the engine cover (50), the second rotating plate (412) is located inside the engine cover (50) and is in transmission connection with the first motor (31), and the rotating cylinder (413) is installed on the engine cover (50) and can rotate relative to the engine cover (50).
2. The hood wind noise and wind resistance adjusting device according to claim 1, further comprising a vehicle speed monitoring device (10) and a control device (20), wherein the vehicle speed monitoring device (10) and the control device (20) are both installed in a vehicle control system, the vehicle speed monitoring device (10) is used for monitoring the running speed of the vehicle, and the control device (20) is used for controlling the driving device (30) to adjust at least one of the length and the deflection angle of the adjusting device (40) according to the running speed.
3. The hood wind noise and wind resistance adjusting device according to claim 1, wherein the rear end of the hood (50) is provided with a mounting groove (51) and a fixing rod (52) for mounting the rotating plate (41), the fixing rod (52) is mounted in the middle of the mounting groove (51) and is parallel to the mounting groove (51), and the rotating cylinder (413) is sleeved outside the fixing rod (52).
4. The hood wind noise and wind resistance adjusting device according to claim 1, wherein said adjusting device (40) includes an extension plate (42), said driving device (30) includes a second motor (32), and an extension length of said extension plate (42) is adjustable by driving of said second motor (32).
5. The hood wind noise and wind resistance adjusting device according to claim 4, wherein the extension plate (42) includes a first extension plate (421) and a second extension plate (422), the first extension plate (421) is drivingly connected to the second motor (32) and can be extended outward or retracted inward by the second motor (32), and the second extension plate (422) extends from the top end of the first extension plate (421) to the front windshield (60) and forms an included angle with the first extension plate (421).
6. The hood wind noise and wind resistance adjusting device according to claim 4, wherein a slide rail structure (70) is provided between the rotating plate (41) and the extending plate (42), the slide rail structure (70) includes a slide bar (71) and a slide groove (72), the slide bar (71) is located on one of the rotating plate (41) and the extending plate (42), the slide groove (72) is located on the other one of the rotating plate (41) and the extending plate (42), and one of the slide bar (71) and the slide groove (72) is slidable relative to one of the slide bar (71) and the slide groove (72) by the driving of the second motor (32).
7. A method of adjusting a hood wind noise and a wind resistance by using the hood wind noise and wind resistance adjusting apparatus according to claim 1,
monitoring the running speed of the vehicle by using a vehicle speed monitoring device (10) and transmitting a real-time vehicle speed signal to a control device (20);
the control device (20) determines and adjusts at least one of the length and the deflection angle of the adjusting device (40) according to a real-time vehicle speed signal and a built-in control logic, and calculates the adjusting amount of the driving device (30);
the driving device (30) operates according to the signal of the control device (20) and adjusts at least one of the length and the deflection angle of the adjusting device (40).
8. The hood wind noise and wind resistance adjusting method according to claim 7, wherein the adjusting device (40) includes a rotating plate (41) and an extension plate (42), the driving device (30) includes a first motor (31) and a second motor (32), the control device (20) controls the first motor (31) to adjust the rotation angle of the rotating plate (41) when the vehicle speed is greater than or equal to 60km/h and less than 80km/h, controls the second motor (32) to adjust the extension length of the extension plate (42) when the vehicle speed is greater than or equal to 80km/h and less than 120km/h, and controls the driving device (30) to simultaneously adjust the rotation angle of the rotating plate (41) and the extension length of the extension plate (42) when the vehicle speed is greater than or equal to 120 km/h.
CN202111124529.0A 2021-09-24 2021-09-24 Device and method for adjusting wind noise and wind resistance of engine hood Active CN113942596B (en)

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