Vehicle active grille shutter assembly and vehicle

Abstract

The application discloses a kind of vehicle active air intake grille assembly and vehicle, including being arranged in the upper active grille of radiator side, the lower active grille of intercooler side is arranged, and the active grille control unit of driving upper active grille and lower active grille, upper active grille drive mechanism and lower active grille drive mechanism are connected with active grille control unit respectively, active grille control unit is connected with EMS control unit;EMS control unit stores relevant target parameters of vehicle engine, while EMS control unit acquires relevant vehicle operating parameters, after processing the parameters collected, output signal is given to upper active grille drive mechanism and lower active grille drive mechanism, by upper active grille drive mechanism drives upper active grille blade, lower active grille drive mechanism drives lower active grille blade, so that upper active grille reaches target opening, lower active grille opening reaches target opening.The application can realize the reasonable adjustment control of active grille opening.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle active grille, and particularly relates to a vehicle active air intake grille assembly and a vehicle. BACKGROUND

[0002] With the vigorous promotion of energy saving and emission reduction by the country, the application of active grille on vehicles is becoming more and more widespread. The control principle is mainly to reasonably control the opening of grille blades based on parameters such as vehicle speed and water temperature. With the increasing application of engine supercharging technology in vehicles in recent years, an intercooler is also one of the essential components of a vehicle. However, the cooling demand of the intercooler of the vehicle is inconsistent with the demand of the grille blade opening for cooling liquid heat dissipation. The original active grille control logic fails to fully consider the intercooler heat dissipation demand, which affects the energy saving effect of the active grille.

[0003] Therefore, it is necessary to develop a new vehicle active air intake grille assembly and a vehicle. SUMMARY

[0004] The application aims to provide a vehicle active air intake grille assembly and a vehicle, which can realize reasonable adjustment and control of the opening of the active grille.

[0005] In a first aspect, the vehicle active air intake grille assembly comprises an upper active grille arranged on one side of a radiator, a lower active grille arranged on one side of an intercooler, an active grille control unit for driving the upper active grille and the lower active grille, and a wind deflector arranged at the connection between the upper active grille and the lower active grille, which separates the action area of the upper active grille from the action area of the lower active grille.

[0006] The upper active grille comprises upper active grille blades and an upper active grille driving mechanism connected with the upper active grille blades. A sensor for detecting the opening angle of the upper active grille blades is installed in the upper active grille driving mechanism.

[0007] The lower active grille comprises lower active grille blades and a lower active grille driving mechanism connected with the lower active grille blades. A sensor for detecting the opening angle of the lower active grille blades is installed in the lower active grille driving mechanism.

[0008] The upper active grille driving mechanism and the lower active grille driving mechanism are respectively connected with the active grille control unit.

[0009] The active grille control unit is connected with an EMS control unit.

[0010] The EMS control unit stores vehicle engine related target parameters, collects relevant vehicle operating parameters, processes the collected parameters in the EMS control unit, or directly transmits the collected parameters to the active grille control unit for processing, and then outputs signals to the upper active grille driving mechanism and the lower active grille driving mechanism. The upper active grille driving mechanism drives the upper active grille blades, and the lower active grille driving mechanism drives the lower active grille blades, so that the upper active grille reaches the target opening degree and the lower active grille reaches the target opening degree. During the adjustment process, the actual opening degree of the upper active grille blades and the lower active grille blades is detected by the sensor, and the adjustment process is ended when the actual opening degree reaches the target opening degree.

[0011] Optionally, the active grille control unit stores an upper active grille opening degree and radiator cooling capacity relationship table; the active grille control unit reads the ambient temperature, vehicle speed, current coolant temperature and target coolant temperature output by the EMS control unit, calculates the difference between the current coolant temperature and the target coolant temperature, obtains the radiator heat dissipation requirement by combining the difference with the radiator water storage capacity, and obtains the upper active grille target opening degree by looking up the upper active grille opening degree and radiator cooling capacity relationship table according to the radiator heat dissipation requirement, the vehicle speed and the ambient temperature. The rotation direction and rotation angle of the upper active grille driving mechanism are controlled according to the upper active grille target opening degree and the current opening degree of the upper active grille. When the current opening degree of the upper active grille is consistent with the target opening degree of the upper active grille, the upper active grille driving mechanism stops running, and the control process is ended.

[0012] Optionally, the active grille control unit stores a lower active grille opening degree and intercooler cooling capacity relationship table; the active grille control unit reads the ambient temperature, vehicle speed, current intake temperature and target intake temperature output by the EMS control unit, calculates the difference between the current intake temperature and the target intake temperature, obtains the intake temperature heat dissipation requirement by combining the difference with the intake pressure and the fixed volume of the intercooler, and obtains the lower active grille target opening degree by looking up the lower active grille opening degree and intercooler cooling capacity relationship table according to the intake temperature heat dissipation requirement, the vehicle speed and the ambient temperature. The rotation direction and rotation angle of the lower active grille driving mechanism are controlled according to the lower active grille target opening degree and the current opening degree of the lower active grille. When the current opening degree of the lower active grille is consistent with the target opening degree of the lower active grille, the lower active grille driving mechanism stops running, and the control process is ended.

[0013] Optionally, the upper edge of the upper active grille is provided with an upper mounting bracket, and the upper mounting bracket is an upper mounting fulcrum of the upper active grille and the radiator.

[0014] Optionally, a front anti-collision beam is arranged at the connection of the upper active grille and the lower active grille; the front anti-collision beam is a lower mounting fulcrum of the upper active grille and is also an upper mounting fulcrum of the lower active grille.

[0015] Optionally, a lower mounting bracket is arranged at the lower edge of the lower active grille; the lower mounting bracket is a mounting fulcrum of the lower active grille and is also a lower mounting fulcrum of the intercooler.

[0016] In the second aspect, the vehicle adopts the vehicle active grille assembly.

[0017] The present application has the following advantages: the present application can realize reasonable adjustment and control of the opening degree of the active grille by controlling the upper active grille and the lower active grille to adjust the coolant temperature and the intake temperature of the vehicle, respectively; the present application has the characteristics of simple calibration, realizes decoupling of the coolant temperature and the intake temperature of the vehicle, and is beneficial to popularization of the active grille technology; and the present application improves the use effect of the active grille and reduces the difficulty of calibration and matching of the active grille. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a side view of the arrangement structure of the active grille in the embodiment.

[0019] Figure 2 is a front view of the arrangement structure of the active grille in the embodiment.

[0020] Figure 3 is a block diagram of the realization of the blade opening degree control of the upper active grille and the lower active grille through the acquisition of relevant signals by the control unit and the coordination after certain control logic in the embodiment.

[0021] Figure 4 is a block diagram of the relevant work content of the control logic of the EMS control unit in the embodiment.

[0022] Figure 5 is a block diagram of the relevant work content of the control logic of the active grille control unit in the embodiment. DETAILED DESCRIPTION

[0023] The present application will be described in detail below with reference to the accompanying drawings.

[0024] As Figures 1 to 5As shown in the embodiment, the vehicle active grille assembly includes an upper active grille 20 arranged on one side of the radiator 60, a lower active grille 40 arranged on one side of the intercooler 70, an active grille control unit 82 for driving the upper active grille 20 and the lower active grille 40, and a deflector 90 arranged at the connection between the upper active grille 20 and the lower active grille 40, which separates the action area of the upper active grille 20 from the action area of the lower active grille 40. The upper active grille 20 includes upper active grille blades and an upper active grille driving mechanism 201 connected to the upper active grille blades. The upper active grille driving mechanism 201 is provided with a sensor for detecting the opening angle of the upper active grille blades. The lower active grille 40 includes lower active grille blades and a lower active grille driving mechanism 401 connected to the lower active grille blades; the lower active grille driving mechanism 401 is provided with a sensor for detecting the opening angle of the lower active grille blades. The upper active grille driving mechanism 201 and the lower active grille driving mechanism 401 are connected to the active grille control unit 82 respectively. The active grille control unit 82 is connected to the EMS control unit 81.

[0025] As shown in the embodiment, Figure 1 The upper edge of the upper active grille 20 is provided with an upper mounting bracket 10, which serves as the upper mounting fulcrum of the upper active grille 20 and the radiator 60. The connection between the upper active grille 20 and the lower active grille 40 is provided with a front anti-collision cross beam 30, which serves as the lower mounting fulcrum of the upper active grille and also as the upper mounting fulcrum of the lower active grille 40. The lower edge of the lower active grille 40 is provided with a lower mounting bracket 50, which serves as the mounting fulcrum of the lower active grille 40 and also as the lower mounting fulcrum of the intercooler. The radiator and the intercooler serve as mounting support points for each other. The deflector 90 separates the action area of the upper active grille 20 from the action area of the lower active grille 40, which can avoid the mutual influence of the upper and lower heat dissipation systems, thereby improving the temperature control effect.

[0026] As shown in the embodiment, Figure 3 The EMS control unit 81 stores vehicle engine related target parameters, and the EMS control unit 81 collects related vehicle operating parameters. The collected parameters are processed in the EMS control unit 81 or transmitted to the active grille control unit 82 for processing, and then output signals to the upper active grille driving mechanism 201 and the lower active grille driving mechanism 401. The upper active grille driving mechanism 201 drives the upper active grille blades, and the lower active grille driving mechanism 401 drives the lower active grille blades, so that the upper active grille reaches the target opening degree and the lower active grille reaches the target opening degree. In the adjustment process, the actual opening degree of the upper active grille blades and the lower active grille blades is detected by the sensor, and the active grille opening degree adjustment is ended after the actual opening degree reaches the target opening degree.

[0027] As Figure 4 shown, EMS control unit 81 collects ambient temperature, vehicle speed, current coolant temperature, current intake temperature and boost pressure through external sensors. Engine load and engine speed are obtained through internal calculation of EMS control unit 81. Meanwhile, target coolant temperature and target intake temperature of the engine of this vehicle model are stored in EMS control unit 81. Both of these two parameters are in the form of map table, and are mainly related to engine speed and engine load.

[0028] As Figure 5 shown, active grille control unit 82 obtains relevant data output by EMS control unit 81, then processes them to obtain upper active grille target opening degree and lower active grille target opening degree, and further controls adjustment of active grille opening degree.

[0029] In this embodiment, the specific logic of upper active grille opening degree control is as follows:

[0030] Upper active grille opening degree and radiator cooling capacity relationship table is stored in active grille control unit 82. When the program runs, active grille control unit 82 reads ambient temperature, vehicle speed, current coolant temperature and target coolant temperature output by EMS control unit 81, further calculates the difference between current coolant temperature and target coolant temperature, and then obtains the required radiator heat dissipation capacity according to the difference combined with the water storage amount of the radiator. Further, the required radiator heat dissipation capacity, vehicle speed and ambient temperature are used to look up the upper active grille opening degree and radiator cooling capacity relationship table to obtain the upper active grille target opening degree. According to the upper active grille target opening degree and the current opening degree of the upper active grille transmitted back by the upper active grille driving mechanism 201, the running direction and rotation angle of the upper active grille driving mechanism 201 are determined. When the current opening degree of the upper active grille is consistent with the upper active grille target opening degree, the upper active grille driving mechanism 201 stops running, and this control process ends.

[0031] In this embodiment, the specific logic of lower active grille opening degree control is as follows:

[0032] The active grille control unit 82 stores a table of the relationship between the lower active grille opening degree and the intercooler cooling capacity. When the program runs, the active grille control unit 82 reads the ambient temperature, the vehicle speed, the current intake air temperature and the target intake air temperature output by the EMS control unit 81, further calculates the difference between the current intake air temperature and the target intake air temperature, and obtains the intake air temperature heat dissipation requirement according to the difference, the intake air pressure and the fixed volume of the intercooler. Through the intake air temperature heat dissipation requirement, the vehicle speed and the ambient temperature, the table of the relationship between the lower active grille opening degree and the intercooler cooling capacity is looked up to obtain the target opening degree of the lower active grille. According to the target opening degree of the lower active grille and the current opening degree of the lower active grille transmitted back by the lower active grille driving mechanism 401, the operation direction and the rotation angle of the lower active grille driving mechanism 401 are determined. When the current opening degree of the lower active grille is consistent with the target opening degree of the lower active grille, the lower active grille driving mechanism 401 stops operating, and the control process ends.

[0033] In the embodiment, a vehicle adopts the vehicle active intake grille assembly as described in the embodiment.

[0034] It should be noted that the above-mentioned embodiments are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the idea and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle active grille shutter assembly, characterized in that: It includes an upper active grille (20) disposed on one side of the radiator (60), a lower active grille (40) disposed on one side of the intercooler (70), an active grille control unit (82) that drives the upper active grille (20) and the lower active grille (40), and an air guide plate (90) disposed at the connection between the upper active grille (20) and the lower active grille (40), the air guide plate (90) separating the working area of ​​the upper active grille (20) from the working area of ​​the lower active grille (40); The upper active grille (20) includes upper active grille blades and an upper active grille drive mechanism (201) connected to the upper active grille blades; the upper active grille drive mechanism (201) is equipped with a sensor for detecting the opening angle of the upper active grille blades; The lower active grille (40) includes lower active grille blades and a lower active grille drive mechanism (401) connected to the lower active grille blades; a sensor for detecting the opening angle of the lower active grille blades is installed in the lower active grille drive mechanism (401). The upper active grille drive mechanism (201) and the lower active grille drive mechanism (401) are respectively connected to the active grille control unit (82); The active grille control unit (82) is connected to the EMS control unit (81); The EMS control unit (81) stores target parameters related to the vehicle engine. At the same time, the EMS control unit (81) collects relevant vehicle operating parameters. The collected parameters are processed inside the EMS control unit (81) or transmitted to the active grille control unit (82) for processing. Then, the output signal is sent to the upper active grille drive mechanism (201) and the lower active grille drive mechanism (401). The upper active grille drive mechanism (201) drives the upper active grille blades, and the lower active grille drive mechanism (401) drives the lower active grille blades, so that the upper active grille reaches the target opening degree and the lower active grille opening degree reaches the target opening degree. During the adjustment process, the actual opening degree of the upper active grille blades and the lower active grille blades is detected by the sensor. After the actual opening degree reaches the target opening degree, the active grille opening degree adjustment ends. The active grille control unit (82) stores a table showing the relationship between the opening degree of the upper active grille and the cooling capacity of the radiator. The active grille control unit (82) reads the ambient temperature, vehicle speed, current coolant temperature and target coolant temperature output by the EMS control unit (81), calculates the difference between the current coolant temperature and the target coolant temperature, and obtains the radiator heat dissipation requirement based on the difference and the amount of water stored in the radiator. The target opening degree of the upper active grille is obtained by looking up the table showing the relationship between the opening degree of the upper active grille and the cooling capacity of the radiator based on the radiator heat dissipation requirement, vehicle speed and ambient temperature. The operating direction and rotation angle of the upper active grille drive mechanism (201) are controlled according to the target opening degree and the current opening degree of the upper active grille. When the current opening of the upper active grille matches the target opening of the upper active grille, the upper active grille drive mechanism (201) stops operating, and the control process ends; the active grille control unit (82) stores a table showing the relationship between the opening of the lower active grille and the cooling capacity of the intercooler; the active grille control unit (82) reads the ambient temperature, vehicle speed, current intake air temperature and target intake air temperature output by the EMS control unit (81), calculates the difference between the current intake air temperature and the target intake air temperature, and obtains the intake air temperature heat dissipation requirement based on the difference, combined with the intake air pressure and the fixed volume of the intercooler; by using the intake air temperature heat dissipation requirement, vehicle speed and ambient temperature, the target opening of the lower active grille is obtained by looking up the table showing the relationship between the opening of the lower active grille and the cooling capacity of the intercooler; The operating direction and rotation angle of the lower active grille drive mechanism (401) are controlled according to the target opening degree and the current opening degree of the lower active grille. When the current opening degree of the lower active grille is consistent with the target opening degree of the lower active grille, the lower active grille drive mechanism (401) stops operating, and the control process ends.

2. The vehicle active grille assembly according to claim 1, characterized in that: The upper active grille (20) is provided with an upper mounting bracket (10), which serves as the upper mounting support for the upper active grille (20) and the radiator (60).

3. The vehicle active grille assembly according to claim 2, characterized in that: A front anti-collision beam (30) is provided at the connection between the upper active grille (20) and the lower active grille (40); the front anti-collision beam (30) is the lower mounting point of the upper active grille (20) and the upper mounting point of the lower active grille (40).

4. The vehicle active grille assembly according to claim 3, characterized in that: The lower active grille (40) is provided with a lower mounting bracket (50) on its lower side. The lower mounting bracket (50) is the mounting support point of the lower active grille (40) and also the lower mounting support point of the intercooler (70).

5. A vehicle, characterized in that: The vehicle active grille assembly as described in any one of claims 1 to 4 is adopted.

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