阅读说明：本技术 一种可自动调节的汽车散热系统结构及控制方法 (Automatically-adjustable automobile heat dissipation system structure and control method ) 是由 宋瀚 周松涛 蔡静 吴文佳 杨玄龙 于 2021-09-08 设计创作，主要内容包括：本发明涉及汽车散热装置技术领域,具体涉及一种可自动调节的汽车散热系统结构及控制方法。通过自动调节散热器的翻转倾斜角度和格栅的开闭状态,针对车辆不同的行驶模式,最大化的提高散热器的散热能力,同时尽可能的减小风阻并保证美观性；在车辆前悬尺寸边界有限的情况下,能够优化机舱的布置空间,且能够适应多种不同尺寸的车型,通用性好；在车辆停止及正常行驶时,通过散热器和下格栅相配合,在保证散热能力的同时尽量关闭上格栅,提高车辆前部的造型美观性；在车辆爬坡或越野发热功率增强时,通过开启上格栅和下格栅,提升进气量,保证散热能力；在车辆涉水时,通过关闭下格栅、翻转倾斜散热器,提高车辆的涉水能力。(The invention relates to the technical field of automobile heat dissipation devices, in particular to an automatically adjustable automobile heat dissipation system structure and a control method. The heat dissipation capacity of the radiator is improved to the maximum extent by automatically adjusting the overturning inclination angle of the radiator and the opening and closing state of the grille according to different driving modes of the vehicle, and meanwhile, the wind resistance is reduced as much as possible and the attractiveness is ensured; under the condition that the boundary of the front overhang size of the vehicle is limited, the arrangement space of the engine room can be optimized, the engine room can adapt to various vehicle types with different sizes, and the universality is good; when the vehicle stops and normally runs, the radiator is matched with the lower grating, the upper grating is closed as much as possible while the heat dissipation capacity is ensured, and the appearance attractiveness of the front part of the vehicle is improved; when the heating power of the vehicle climbing or cross-country is enhanced, the air input is improved and the heat dissipation capability is ensured by opening the upper grid and the lower grid; when the vehicle wades, the lower grille is closed, and the inclined radiator is turned over, so that the wading capacity of the vehicle is improved.)

1. The automobile heat dissipation system structure capable of being automatically adjusted comprises an upper grid (1) and a lower grid (2) which are arranged on a front bumper and a radiator (9) which is arranged in a cabin, and is characterized in that a radiator transmission mechanism (6) is arranged at the upper part of the side of the radiator (9), a radiator pipeline (7) is connected to the middle part of the side of the radiator, a slide rail (8) is arranged at the bottom of the radiator transmission mechanism, and the radiator transmission mechanism (6) is driven by a motor III (5) and drives the radiator (9) to turn over along the slide rail (8);

the middle part of the upper grating (1) is provided with a motor I (3) and an upper grating transmission mechanism, and the motor I (3) is used for driving the upper grating transmission mechanism to further drive the blades of the upper grating (1) to open and close;

the middle part of the lower grating (2) is provided with a motor II (4) and a lower grating transmission mechanism, and the motor II (4) is used for driving the lower grating transmission mechanism to further drive the blades of the lower grating (2) to open and close;

and the motor I (3), the motor II (4) and the motor III (5) are electrically connected with the heat dissipation controller and are controlled by the heat dissipation controller according to a preset control strategy.

2. The self-adjustable automotive cooling system structure of claim 1, characterized in that the radiator pipe (7) is a flexible telescopic pipe.

3. The automatically adjustable vehicle cooling system structure according to claim 1, characterized in that the motor iii (5) drives the radiator transmission mechanism (6), in particular in a chain gear transmission.

4. The structure of claim 1, wherein the motor i (3) drives the upper grid transmission mechanism in a coupling direct transmission mode, and the motor ii (4) drives the lower grid transmission mechanism in a coupling direct transmission mode.

5. The structure of claim 1, wherein the sliding rails (8) are arc-shaped and have 2 sets, and the 2 sets of sliding rails (8) are symmetrically arranged on two sides of the bottom of the heat sink (9).

6. The structure of an automatically adjustable automobile heat dissipation system according to claim 1, characterized in that the upper grille (1) is a honeycomb grille, and the lower grille (2) is a mesh grille.

7. The automatically adjustable automobile heat dissipation system structure of claim 1, wherein the heat dissipation controller is electrically connected with a main control ECU of the automobile.

8. A control method of an automatically adjustable automobile heat dissipation system is characterized by comprising the following steps:

s1, judging whether the vehicle is in a running state, if so, executing a step S2, otherwise, executing a step S8;

and S2, judging the vehicle running mode, and executing the following strategies according to the vehicle running mode:

when the vehicle is running at a high speed, step S3 is executed;

when the vehicle is running at a medium speed, step S4 is executed;

when the vehicle is running at a low speed, step S5 is executed;

when the vehicle is wading, step S6 is executed;

when the vehicle is climbing a hill or running off the road, step S7 is executed;

the high speed, the medium speed and the low speed are preset speed intervals from high to low;

s3, the radiator (9) is turned and inclined by 30-60 degrees, the blades of the upper grid (1) are closed, and the blades of the lower grid (2) are opened;

s4, the radiator (9) is turned and inclined by 15-30 degrees, the blades of the upper grid (1) are closed, and the blades of the lower grid (2) are opened;

s5, the radiator (9) is in a vertical state, the blades of the upper grille (1) are closed, and the blades of the lower grille (2) are opened;

s6, the radiator (9) is turned and inclined by 30-60 degrees, the blades of the upper grid (1) are opened, and the blades of the lower grid (2) are closed;

s7, the radiator (9) is in a vertical state, and the blades of the upper grille (1) and the lower grille (2) are both opened;

s8, the radiator (9) is in a vertical state, and the blades of the upper grille (1) and the lower grille (2) are closed.

9. The method as claimed in claim 8, wherein the vehicle speed per hour at high speed is greater than 80km/h, the vehicle speed per hour at medium speed is greater than or equal to 30km/h and less than or equal to 80km/h, and the vehicle speed per hour at low speed is less than 30km/h and greater than 0 km/h.

10. An automobile, characterized by comprising an automatically adjustable automobile heat dissipation system structure as claimed in any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of automobile heat dissipation devices, in particular to an automatically adjustable automobile heat dissipation system structure and a control method.

Background

During the running of the automobile, heat generated by the engine is exhausted through the radiator and is radiated to the outside through the automobile grille positioned at the front of the automobile. At present, no matter traditional fuel vehicles, pure electric vehicles or hybrid electric vehicles, the arrangement of an automobile heat dissipation system is always the key difficulty of cabin arrangement, and the arrangement of the heat dissipation system is closely related to the size of the air intake of the vehicles, the shape of a grille, a front bumper, the front overhang size and the like, and can indirectly influence the temperature of the cabin.

The existing automobile heat dissipation system usually adopts a structure with an adjustable grid and a fixed radiator, the angle of the grid is adjusted according to the heat dissipation condition of an automobile, but the grid is related to the air inlet volume and the air resistance of the automobile, if the grid is opened to be small, the air inlet volume is very small, if the grid is opened to be large, the air resistance of the whole automobile can be increased, the oil consumption is increased, and the air inlet volume and the air resistance can not be considered according to the working condition of the automobile.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the structure and the control method of the automobile heat dissipation system capable of being automatically adjusted are provided, the air inlet amount and the air resistance can be comprehensively considered under different automobile conditions, the heat dissipation area is utilized to the maximum extent, the universality is good, and the structure and the control method can adapt to various automobile types.

In order to solve the technical problems, the invention adopts the technical scheme that: an automatically-adjustable automobile heat dissipation system structure comprises an upper grid 1 and a lower grid 2 which are arranged on a front bumper and a radiator 9 which is arranged in a cabin, wherein a radiator transmission mechanism 6 is arranged at the upper part of the side of the radiator 9, a radiator pipeline 7 is connected to the middle part of the side of the radiator, a slide rail 8 is arranged at the bottom of the radiator, and the radiator transmission mechanism 6 is driven by a motor III 5 and can drive the radiator 9 to turn over along the slide rail 8;

the middle part of the upper grid 1 is provided with a motor I3 and an upper grid transmission mechanism, and the motor I3 can drive the upper grid transmission mechanism to further drive the blades of the upper grid 1 to open and close;

the middle part of the lower grid 2 is provided with a motor II 4 and a lower grid transmission mechanism, and the motor II 4 can drive the lower grid transmission mechanism to further drive the blades of the lower grid 2 to open and close;

and the motor I3, the motor II 4 and the motor III 5 are electrically connected with the heat dissipation controller and are controlled by the heat dissipation controller according to a preset control strategy.

Further, the radiator pipeline 7 is a flexible telescopic pipeline.

Further, the mode of driving the radiator transmission mechanism 6 by the motor III 5 is specifically chain gear transmission.

Further, the mode that grid drive mechanism was specifically for shaft coupling direct drive on the I3 drive of motor, the mode that grid drive mechanism was specifically for shaft coupling direct drive under the II 4 drive of motor.

Further, the slide rail 8 is arc-shaped and is provided with 2 groups, and the 2 groups of slide rails 8 are symmetrically arranged on two sides of the bottom of the radiator 9.

Further, the upper grid 1 is a honeycomb grid, and the lower grid 2 is a mesh grid.

Further, the heat dissipation controller is electrically connected with a vehicle main control ECU.

A control method of an automatically adjustable automobile heat dissipation system comprises the following steps:

s1, judging whether the vehicle is in a running state, if so, executing a step S2, otherwise, executing a step S8;

and S2, judging the vehicle running mode, and executing the following strategies according to the vehicle running mode:

when the vehicle is running at a high speed, step S3 is executed;

when the vehicle is running at a medium speed, step S4 is executed;

when the vehicle is running at a low speed, step S5 is executed;

when the vehicle is wading, step S6 is executed;

when the vehicle is climbing a hill or running off the road, step S7 is executed;

s3, the radiator 9 is turned over and inclined by 30-60 degrees, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s4, the radiator 9 is turned and inclined by 15-30 degrees, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s5, the radiator 9 is in a vertical state, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s6, the radiator 9 is turned over and inclined by 30-60 degrees, the blades of the upper grid 1 are opened, and the blades of the lower grid 2 are closed;

s7, the radiator 9 is in a vertical state, and the blades of the upper grid 1 and the lower grid 2 are both opened;

and S8, the radiator 9 is in a vertical state, and the blades of the upper grid 1 and the lower grid 2 are closed.

Further, the speed per hour when the vehicle runs at a high speed is more than 80km/h, the speed per hour when the vehicle runs at a medium speed is more than or equal to 30km/h and less than or equal to 80km/h, and the speed per hour when the vehicle runs at a low speed is less than 30km/h and more than 0 km/h.

An automobile comprises the automatic adjustable automobile heat dissipation system structure.

Compared with the prior art, the invention has the following main advantages:

1. through the upset inclination of automatically regulated radiator and the open and close state of grid, to the mode of going of vehicle difference, the radiating capacity of the improvement radiator of maximize reduces the windage and guarantees the aesthetic property simultaneously as far as.

2. Because the overturning inclination angle of the radiator can be set at will, under the condition that the size boundary of the front overhang of the vehicle is limited, the arrangement space of the engine room can be optimized, the structure of the radiating system can adapt to various vehicle models with different sizes, and the universality is good.

3. When the vehicle stops and normally runs, the radiator is matched with the lower grating, the upper grating is closed as much as possible while the heat dissipation capacity is ensured, and the appearance attractiveness of the front part of the vehicle can be improved; when the heating power of the vehicle climbing or cross-country is enhanced, the air input can be improved by opening the upper grid and the lower grid, and the heat dissipation capacity of the radiator is ensured; when the vehicle wades, through opening the upper grid, closing the lower grid, upset slope radiator, can guarantee the wading ability of very big improvement vehicle under the condition of air input.

Drawings

FIG. 1 is a schematic view of an overall structure of an automotive heat dissipation system according to the present invention;

FIG. 2 is a schematic view of a heat sink driving mechanism according to the present invention;

FIG. 3 is a schematic view of a slide rail of the heat sink of the present invention;

FIG. 4 is a schematic view of the vertical arrangement of the heat sink of the present invention;

FIG. 5 is a schematic view of the oblique arrangement of the heat sink according to the present invention;

FIG. 6 is a flowchart illustrating a method for controlling a heat dissipation system of an automobile according to the present invention.

In the figure: 1. an upper grid; 2. a lower grid; 3. a motor I; 4. a motor II; 5. a motor III; 6. a radiator transmission mechanism; 7. a radiator line; 8. a slide rail; 9. a heat sink.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.

First embodiment, an automatically adjustable car radiator structure according to the present invention, as shown in fig. 1 to 3, includes an upper grill 1 and a lower grill 2 provided on a front bumper, and a radiator 9 provided in a cabin.

The upper part of the side of the radiator 9 is provided with a radiator transmission mechanism 6, the middle part of the side of the radiator is connected with a radiator pipeline 7, and the bottom of the radiator is provided with a slide rail 8; the radiator pipeline 7 adopts a flexible telescopic pipeline; the slide rail 8 is arc-shaped and is provided with 2 groups, and the 2 groups of slide rails 8 are symmetrically arranged on two sides of the bottom of the radiator 9.

The upper grating 1 is a honeycomb grating, and the lower grating 2 is a mesh grating.

Further, the radiator transmission mechanism 6 is driven by a motor III 5 and can drive the radiator 9 to turn over along the slide rail 8, and the specific turning inclination angle range is 0-60 degrees; the mode that motor III 5 driven radiator drive mechanism 6 is specifically chain gear drive.

The middle part of the upper grid 1 is provided with a motor I3 and an upper grid transmission mechanism, and the motor I3 can drive the upper grid transmission mechanism to further drive the blades of the upper grid 1 to open and close; the mode that I3 of motor drive goes up grid drive mechanism specifically is shaft coupling direct drive.

The middle part of the lower grid 2 is provided with a motor II 4 and a lower grid transmission mechanism, and the motor II 4 can drive the lower grid transmission mechanism to further drive the blades of the lower grid 2 to open and close; the mode that motor II 4 drove grid drive mechanism is specifically shaft coupling direct drive down.

Furthermore, the motor I3, the motor II 4 and the motor III 5 are all electrically connected with a heat dissipation controller, the heat dissipation controller is controlled according to a preset control strategy, and the heat dissipation controller is electrically connected with a vehicle main control ECU.

The vehicle main control ECU monitors the engine working condition, the vehicle speed and the external environment information of the vehicle in real time, judges the running state and the running mode of the vehicle according to the engine working condition, the vehicle speed and the external environment information, and sends the judgment result to the heat dissipation controller; the heat dissipation controller controls the motor I3, the motor II 4 and the motor III 5 to work according to the received ECU instruction, and further controls the upper grid 1, the lower grid 2 and the radiator 9 to execute corresponding actions.

In the running process of the vehicle, the air inlet volume of the heat dissipation system can be increased by opening the upper grid 1 and the lower grid 2, but the wind resistance of the vehicle can be improved, and the oil consumption is increased; the appearance of the front part of the vehicle can be improved by closing the upper grille 1, the wading capacity of the vehicle can be improved by closing the lower grille 2, but the air inlet volume of a heat dissipation system can be reduced, and the heat dissipation capacity is influenced.

Furthermore, under the condition of the same air inlet quantity, the heat dissipation area can be increased by adjusting the overturning and inclining angle of the heat radiator; meanwhile, after the radiator is turned and inclined, the bottom of the radiator can be lifted, and the wading capacity of a vehicle can be further improved.

The heat dissipation capacity of the vehicle is tested, and the air density is 1.086kg/m³The frontal area is 2.616m²Under the following conditions:

as shown in fig. 4, when the radiator 9 is in the vertical position and the blades of the upper grill 1 and the lower grill 2 are both open, the heat dissipation parameters of the radiator at different vehicle speeds are as follows:

as shown in fig. 5, when the radiator 9 is tilted 30 ° upside down, the blades of the upper grill 1 are closed, and the blades of the lower grill 2 are opened, the heat dissipation parameters of the radiator at different vehicle speeds are as follows:

it can thus be demonstrated that the faster the vehicle speed, the stronger the heat dissipation capacity of the radiator when at least one grille blade is open; closing a grille can affect the heat dissipation capability of the heat sink; the radiator can be turned and inclined at a certain angle to obviously improve the heat dissipation capacity, and the faster the vehicle speed is, the more obvious the heat dissipation capacity is improved.

Therefore, the heat dissipation capability of the radiator and the heat generated by the vehicle under different conditions need to be comprehensively considered, and the actions of the upper grille, the lower grille and the radiator need to be reasonably controlled.

Based on the same inventive concept, the embodiment of the present application further provides a method for controlling an auto-adjustable automobile heat dissipation system, as shown in fig. 6, for the requirements of different working conditions of a vehicle, the air intake, the wind resistance and the aesthetic property are comprehensively considered, and the heat dissipation area is maximally ensured, specifically including the following steps:

s1, judging whether the vehicle is in a running state, if so, executing a step S2, otherwise, executing a step S8;

and S2, judging the vehicle running mode, and executing the following strategies according to the vehicle running mode:

when the vehicle is running at a high speed, step S3 is executed;

when the vehicle is running at a medium speed, step S4 is executed;

when the vehicle is running at a low speed, step S5 is executed;

when the vehicle is wading, step S6 is executed;

when the vehicle is climbing a hill or running off the road, step S7 is executed;

s3, the radiator 9 is turned over and inclined by 30-60 degrees, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s4, the radiator 9 is turned and inclined by 15-30 degrees, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s5, the radiator 9 is in a vertical state, the blades of the upper grid 1 are closed, and the blades of the lower grid 2 are opened;

s6, the radiator 9 is turned over and inclined by 30-60 degrees, the blades of the upper grid 1 are opened, and the blades of the lower grid 2 are closed;

s7, the radiator 9 is in a vertical state, and the blades of the upper grid 1 and the lower grid 2 are both opened;

and S8, the radiator 9 is in a vertical state, and the blades of the upper grid 1 and the lower grid 2 are closed.

Further, when the vehicle is not in a running state, the speed per hour is 0 km/h; the speed per hour when the vehicle runs at a high speed is more than 80km/h, the speed per hour when the vehicle runs at a medium speed is more than or equal to 30km/h and less than or equal to 80km/h, and the speed per hour when the vehicle runs at a low speed is less than 30km/h and more than 0 km/h.

Based on the same inventive concept, the embodiment of the application also provides an automobile, which comprises the automatic adjustable automobile heat dissipation system structure.

The second embodiment is basically the same as the first embodiment in principle and technical scheme, and the difference is as follows: the radiator 9 is equipped with the steamboat, be equipped with on the slide rail 8 a plurality of with the draw-in groove of steamboat looks adaptation, when the radiator 9 overturns to required angle along slide rail 8, the steamboat can block in the draw-in groove that corresponds to fix radiator 9.

By adopting the automatically-adjustable automobile heat dissipation system structure and the control method, the heat dissipation capacity of the radiator is improved to the maximum extent by automatically adjusting the overturning inclination angle of the radiator and the opening and closing state of the grille according to different driving modes of the automobile, and meanwhile, the wind resistance is reduced as much as possible and the attractiveness is ensured;

because the overturning inclination angle of the radiator can be set at will, under the condition that the boundary of the front overhang size of the vehicle is limited, the arrangement space of the engine room can be optimized, and the structure of the radiating system can adapt to various vehicle types with different sizes, and has good universality;

when the vehicle stops and normally runs, the radiator is matched with the lower grating, the upper grating is closed as much as possible while the heat dissipation capacity is ensured, and the appearance attractiveness of the front part of the vehicle can be improved;

when the heating power of the vehicle climbing or cross-country is enhanced, the air input can be improved by opening the upper grid and the lower grid, and the heat dissipation capacity of the radiator is ensured;

when the vehicle wades, through opening the upper grid, closing the lower grid, upset slope radiator, can guarantee the wading ability of very big improvement vehicle under the condition of air input.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.