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CN-121973619-A - Grille assembly for vehicle and vehicle

CN121973619ACN 121973619 ACN121973619 ACN 121973619ACN-121973619-A

Abstract

The invention discloses a grille assembly for a vehicle, the vehicle and a control method, and relates to the technical field of vehicle parts. The grid assembly comprises a grid body, a cooling module, an engine hood and an airflow control piece, wherein an air inlet is formed in the grid body, the cooling module is arranged on the rear side of the grid body, the cooling module is communicated with the air inlet to form a first airflow channel, the engine hood is arranged above the grid body, a second airflow channel communicated with the first airflow channel is formed between the engine hood and the grid body, an air outlet communicated with the second airflow channel is formed in the engine hood, and the airflow control piece is movably arranged in the first airflow channel and is suitable for controlling on-off of the second airflow channel. According to the grid assembly, air flow can be distributed according to the working condition of the vehicle, the cabin resistance is reduced, the pneumatic resistance of the whole vehicle is reduced while the cooling requirement is met, the energy consumption is further reduced, and the comprehensive performance of the vehicle is improved.

Inventors

  • HUANG LING
  • LI XIAOJIAN
  • ZHANG JUNJIAN
  • WANG YUXIN

Assignees

  • 奇瑞智能汽车科技(合肥)有限公司

Dates

Publication Date
20260505
Application Date
20260331

Claims (10)

  1. 1. A grille assembly for a vehicle, comprising: A grill body (11), the grill body (11) being formed with an air inlet (111); a cooling module (12), wherein the cooling module (12) is arranged at the rear side of the grid body (11), and the cooling module (12) is communicated with the air inlet (111) to form a first air flow channel (151); A hood (13), wherein the hood (13) is arranged above the grille body (11), a second airflow channel (152) communicated with the first airflow channel (151) is formed between the hood (13) and the grille body (11), and an air outlet (131) communicated with the second airflow channel (152) is formed on the hood (13); An airflow control member (14), wherein the airflow control member (14) is movably arranged on the first airflow channel (151) and is suitable for controlling the on-off of the second airflow channel (152); Wherein when the air flow control member (14) closes the second air flow passage (152), the air flow entering from the air inlet (111) flows through the first air flow passage (151) to the cooling module (12) entirely, and when the air flow control member (14) opens the second air flow passage (152), the air flow entering from the air inlet (111) flows out from the air outlet (131) of the engine cover (13) at least partially through the second air flow passage (152).
  2. 2. The grille assembly of claim 1, wherein the second airflow channel (152) has an inlet (1521) communicating to the first airflow channel (151), the airflow control member (14) being rotatably arranged on one side of the inlet (1521) and being adapted to switch between a first rotational position and a second rotational position; Wherein the airflow control member (14) closes the inlet (1521) and opens the first airflow passage (151) when rotated to the first rotational position, and closes the first airflow passage (151) and opens the inlet (1521) when rotated to the second rotational position.
  3. 3. The grille assembly of claim 2, wherein the airflow control member (14) comprises: a rotation shaft (141), wherein the rotation shaft (141) is rotatably arranged at one side of the inlet (1521); a first baffle (142), the first baffle (142) being connected to the rotating shaft (141) and extending radially outwards; The second baffle plate (143), the second baffle plate (143) connect in pivot (141) and radially outwards extend, second baffle plate (143) with first baffle plate (142) are in circumference of pivot (141) interval setting, second baffle plate (143) with one side of first baffle plate (142) forms jointly and is used for sealing entry (1521) or the sealing surface of first air current passageway (151), second baffle plate (143) with the opposite side of first baffle plate (142) forms jointly and is used for guiding the water conservancy diversion face that the air current flows.
  4. 4. The grille assembly of claim 2, wherein the cross-sectional area of the inlet (1521) is smaller than the smallest cross-sectional area of the first air flow channel (151).
  5. 5. The grille assembly according to claim 1, wherein said second air flow passage (152) extends from said first air flow passage (151) in an arc shape toward said hood (13) and is curved toward the rear of the vehicle.
  6. 6. A vehicle comprising a grille assembly according to any one of claims 1 to 5.
  7. 7. A control method of a vehicle, characterized in that the control method is for a vehicle as claimed in claim 6, the cooling module (12) being provided with a cooling liquid for cooling heat generating components; The control method comprises the following steps: acquiring the speed of the vehicle and/or the temperature of the cooling liquid; -controlling the activity of the airflow control member (14) according to the vehicle speed and/or the temperature of the cooling liquid, so that the airflow entering from the air inlet (111) selectively flows entirely towards the cooling module (12) or at least partially out from the air outlet (131) of the engine cover (13).
  8. 8. The control method according to claim 7, characterized in that when the temperature of the cooling liquid is greater than or equal to a preset temperature threshold, the air flow control member (14) is controlled to be active so that the air flow entering from the air inlet (111) is entirely directed to the cooling module (12); When the temperature of the cooling liquid is smaller than the preset temperature threshold value and the vehicle speed is larger than the preset vehicle speed threshold value, the air flow control member (14) is controlled to be active so that air flow entering from the air inlet (111) flows out of an air outlet (131) of the engine cover (13) at least partially.
  9. 9. The control method according to claim 7, characterized by controlling the airflow control member (14) to be active when the vehicle speed is greater than a preset vehicle speed threshold value so that the airflow entering from the air inlet (111) flows at least partially out from the air outlet (131) of the hood (13); and when the vehicle speed is less than or equal to the preset vehicle speed threshold value, controlling the air flow control member (14) to be active so that the air flow entering from the air inlet (111) fully flows to the cooling module (12).
  10. 10. A vehicle comprising a control module for performing the control method of any one of claims 7-9.

Description

Grille assembly for vehicle and vehicle Technical Field The invention relates to the technical field of vehicle parts, in particular to a grille assembly for a vehicle and the vehicle. Background In the running process of the vehicle, the air resistance is one of key factors influencing the energy consumption, and particularly in a high-speed state, the ratio of the air resistance to the energy consumption of the whole vehicle is obviously increased, so that the economical efficiency of the vehicle is reduced, and the high-speed stability of the vehicle is restricted. In the related art, an air inlet grille usually adopts a fixed opening form, so as to meet the cooling requirement under extreme working conditions, and in most practical driving scenes, a large amount of air flows into an engine room, but is not used for effective cooling, turbulence and pressure difference resistance are formed, and white consumption energy is generated, so that the endurance mileage is shortened. Although intelligent Active Grille Systems (AGS) attempt to balance heat dissipation and aerodynamic performance, wind resistance is reduced to some extent by adjusting grille opening and closing. However, AGS has a relatively single control of airflow, resulting in limited wind resistance reduction in situations where cooling requirements are low, but aerodynamic performance requirements are higher, such as high speed driving. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, it is an object of the present invention to propose a grille assembly. According to the grid assembly, air flow can be distributed according to the working condition of the vehicle, the cabin resistance is reduced, the pneumatic resistance of the whole vehicle is reduced while the cooling requirement is met, the energy consumption is further reduced, and the comprehensive performance of the vehicle is improved. The invention further provides a vehicle with the grid assembly. The invention further provides a control method for the vehicle. The invention also proposes a vehicle having a control module for executing the control method described above. The grille assembly for the vehicle comprises a grille body, a cooling module, an engine hood, an air flow control member and an air flow control member, wherein the grille body is provided with an air inlet, the cooling module is arranged on the rear side of the grille body, the cooling module is communicated with the air inlet to form a first air flow channel, the engine hood is arranged above the grille body, a second air flow channel communicated with the first air flow channel is formed between the engine hood and the grille body, the engine hood is provided with an air outlet communicated with the second air flow channel, the air flow control member is movably arranged in the first air flow channel and is suitable for controlling the on-off of the second air flow channel, air entering from the air inlet flows through the first air flow channel to the cooling module when the air flow control member closes the second air flow channel, and air entering from the air inlet flows out of the air outlet of the engine hood at least partially through the second air flow channel when the air flow control member opens the second air flow channel. According to the grille assembly, the airflow control member can control the on-off of the second airflow channel according to the actual running condition of the vehicle, so that the airflow distribution is realized. When the cooling requirement is lower and the requirement on the aerodynamic performance is higher, at least part of air flows from the air outlet of the engine cover through the second air flow channel, so that turbulence and differential pressure resistance in the engine room are effectively reduced, the aerodynamic resistance of the whole vehicle is reduced, the aerodynamic performance during high-speed running is obviously optimized while the cooling requirement of the vehicle is met, the energy consumption is reduced, and the comprehensive performance of the vehicle is improved. According to some embodiments of the invention, the second airflow channel has an inlet communicating to the first airflow channel, the airflow control member is rotatably arranged at one side of the inlet and is adapted to switch between a first rotational position and a second rotational position, wherein the airflow control member closes the inlet and opens the first airflow channel when rotated to the first rotational position and closes the first airflow channel and opens the inlet when rotated to the second rotational position. According to some embodiments of the invention, the airflow control member comprises a rotating shaft rotatably arranged at one side of the inlet, a first baffle plate connected with the rotating shaft and extending outwards in the radial direction, and a second baffle