CN111361400A

CN111361400A - Intelligent control method and device for panoramic sunroof

Info

Publication number: CN111361400A
Application number: CN202010194724.XA
Authority: CN
Inventors: 喻哲; 张培柳
Original assignee: Chongqing Jinkang Sailisi New Energy Automobile Design Institute Co Ltd
Current assignee: Chongqing Jinkang Sailisi New Energy Automobile Design Institute Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-07-03

Abstract

The application relates to an intelligent control method and device for a panoramic sunroof, wherein the method comprises the following steps: acquiring the current vehicle speed and the current opening degree of a skylight; inquiring a comfortable opening corresponding to the current vehicle speed in a preset opening data table; judging whether a wind vibration problem exists according to the current opening; and if the wind vibration problem exists, sending a corresponding control signal to enable the skylight to move to a corresponding comfortable opening degree. The scheme of the application judges whether the wind vibration problem exists or not by detecting the vehicle speed in real time, and automatically opens the skylight to a proper position, so that the wind vibration problem is eliminated; the scheme of this application can guarantee that the skylight can open the use in going, and automatic control skylight opening size is eliminated in order to remove the wind problem of shaking, promotes driver and crew's comfort level.

Description

Intelligent control method and device for panoramic sunroof

Technical Field

The application relates to the technical field of design of an openable skylight of an automobile, in particular to an intelligent control method and device of a panoramic skylight.

Background

At present, the existing skylight system only has the functions of opening or closing and stopping the skylight through key/sound control, but with the improvement of the automobile speed, when the amplitude of the sound pressure level is greater than 100dB, the front end of the opened skylight glass can generate wind vibration, and drivers and passengers can feel uncomfortable. The sound pressure level amplitude is greater than 100dB, and the wind vibration problem exists; the essence of the wind vibration problem is that the sound pressure level amplitude is larger than 100dB, and the wind vibration problem is just a phenomenon that drivers and passengers cause discomfort. The sound pressure level can only be determined according to CAE analysis or speed working conditions in a laboratory, and the sound pressure level cannot be directly determined on a real vehicle.

In the related art, the existing skylight can only be closed manually or a stop position can only be defined by user; the opening size of the skylight cannot be adjusted quickly, accurately and automatically, and the problem of wind vibration cannot be eliminated automatically; the wind vibration problem can not be eliminated by manually adjusting the stop position, but can be eliminated only by calculating and calibrating the position point.

Disclosure of Invention

In order to overcome the problems in the related art at least to a certain extent, the application provides an intelligent control method and device for a panoramic sunroof.

According to a first aspect of an embodiment of the present application, there is provided an intelligent control method for a panoramic sunroof, including:

acquiring the current vehicle speed and the current opening degree of a skylight;

inquiring a comfortable opening corresponding to the current vehicle speed in a preset opening data table;

judging whether a wind vibration problem exists according to the current opening;

and if the wind vibration problem exists, sending a corresponding control signal to enable the skylight to move to a corresponding comfortable opening degree.

Further, the judging whether there is a wind vibration problem according to the current opening degree includes:

judging whether the current opening degree is consistent with the comfortable opening degree corresponding to the current vehicle speed;

if the two are consistent, the problem of wind vibration does not exist; if not, there is a wind vibration problem.

Further, the method further comprises:

if there is no wind vibration problem, no operation is performed.

Further, the method further comprises:

and under the conventional control mode, after receiving an instruction for starting intelligent control, entering an intelligent control mode.

Further, the method further comprises:

in the intelligent control mode, if an active operation instruction for controlling the skylight is received, a conventional control mode is entered.

According to a second aspect of the embodiments of the present application, there is provided an intelligent control device for a panoramic sunroof, including:

the acquisition module is used for acquiring the current vehicle speed and the current opening degree of the skylight;

the inquiry module is used for inquiring the comfortable opening corresponding to the current vehicle speed in a preset opening data table;

the judging module is used for judging whether the wind vibration problem exists according to the current opening degree;

and the execution module is used for sending out a corresponding control signal if the wind vibration problem exists so as to enable the skylight to move to a corresponding comfortable opening degree.

Further, the judging module judges whether the wind vibration problem exists according to the current opening degree, and specifically comprises:

Further, the execution module is further configured to:

if there is no wind vibration problem, no operation is performed.

Further, the apparatus further comprises:

and the mode selection module is used for entering the intelligent control mode after receiving the instruction for starting the intelligent control in the conventional control mode.

Further, the mode selection module is further configured to:

The technical scheme provided by the embodiment of the application has the following beneficial effects:

the scheme of the application judges whether the wind vibration problem exists or not by detecting the vehicle speed in real time, and automatically opens the skylight to a proper position, so that the wind vibration problem is eliminated; the scheme of this application can guarantee that the skylight can open the use in going, and automatic control skylight opening size is eliminated in order to remove the wind problem of shaking, promotes driver and crew's comfort level.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a flowchart illustrating an intelligent control method of a panoramic sunroof according to an exemplary embodiment.

FIG. 2 is a block circuit diagram illustrating an electronic control system for a sunroof in an automobile according to an exemplary embodiment.

FIG. 3 is a schematic diagram illustrating a fully open state of a vehicle model according to an exemplary embodiment.

FIG. 4 is a schematic diagram illustrating a half-open state of a vehicle model according to an exemplary embodiment.

FIG. 5 is a fully closed state diagram of a vehicle model according to an exemplary embodiment.

Fig. 6 is a graph showing a correspondence between a vehicle speed and a comfort opening degree of a certain vehicle type according to an exemplary embodiment.

FIG. 7 is a logic flow diagram illustrating a method of intelligent control in accordance with an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of methods and apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

Fig. 1 is a flowchart illustrating an intelligent control method of a panoramic sunroof according to an exemplary embodiment. The method can intelligently control the opening size of the skylight according to the change of the vehicle speed, and specifically comprises the following steps:

step S1: acquiring the current vehicle speed and the current opening degree of a skylight;

step S2: inquiring a comfortable opening corresponding to the current vehicle speed in a preset opening data table;

step S3: judging whether a wind vibration problem exists according to the current opening;

step S4: and if the wind vibration problem exists, sending a corresponding control signal to enable the skylight to move to a corresponding comfortable opening degree.

In order to further detail the technical scheme of the application, firstly, an electronic control system of the automobile skylight, which can apply the control method of the application, is specifically introduced.

As shown in fig. 2, the electronic control system for an automobile sunroof includes:

SRM: sunroof module (sunroof controller) that monitors a switch or receives a LIN signal to operate opening and closing of the sunroof and the sunshade;

BCM: the Body Control Module receives skylight signal feedback and controls the opening and closing of a skylight and a sun-shading curtain;

GTW: gateway controller, network management, data forwarding;

ESC: an Electric Stability Control (electronic Stability program Control) provides a vehicle speed signal.

The ESC, the GTW and the BCM are connected through a CAN bus; the BCM and the SRM are connected through a LIN bus; the skylight switch and the sunshade screen switch are connected with the SRM through hard wires, and the SRM controls the motor to rotate forwards and backwards through the hard wires to realize the opening and closing of the skylight and the sunshade screen.

Fig. 3, 4 and 5 are schematic diagrams respectively showing a panoramic sunroof of a certain type of vehicle in different opening states.

In some embodiments, the determining whether there is a wind vibration problem according to the current opening degree includes:

It should be noted that the opening data table can only be tested through a previous experiment, and the corresponding relationship between the vehicle speed and the comfortable opening of the sunroof is arranged according to the test result.

As shown in fig. 6, the fitting curve obtained from the experimental data is shown according to the actual measurement result of a certain vehicle type. In the figure, the abscissa represents the driving speed of the automobile, the ordinate represents the opening degree of the skylight, and the full opening of the skylight is 515 mm. The enclosed part of the curve in the graph is the skylight opening and the automobile running speed corresponding to the problem of wind vibration, and the rest part of the curve does not cause the problem of wind vibration.

From this graph, the opening data table for a certain vehicle type is as follows:

vehicle speed V	Comfortable opening degree
		50km/h<V≤53km/h	450mm
53km/h<V≤56km/h	380mm
		56km/h<V≤66km/h	350mm
66km/h<V≤70km/h	380mm
		70km/h<V≤73km/h	420mm
73km/h<V≤76km/h	450mm
		76km/h<V<80km/h	480mm

When there is the wind vibration problem in the day window, can open the skylight to comfortable aperture according to the upper table to eliminate the wind vibration problem.

It should be noted that the data table is only corresponding data of a certain type of vehicle, and if the vehicle type is different, the corresponding data is also different.

As shown in fig. 7, in some embodiments, the method further comprises:

if there is no wind vibration problem, no operation is performed.

In some embodiments, the method further comprises:

Referring to fig. 7, the control logic of the present solution is described in detail with reference to a specific application scenario:

1) when the vehicle starts to run, the vehicle enters a conventional control mode and needs to actively operate the opening and closing of a skylight (manual/voice);

2) the driver can select whether to start the intelligent control skylight function, and if the driver selects to start the intelligent control skylight function, the intelligent control skylight function is entered;

3) after the intelligent skylight is controlled to be started, the ESC feeds a current vehicle speed signal back to the BCM through the gateway, and the BCM forwards the vehicle speed signal to the SRM;

4) the SRM judges whether a wind vibration problem is caused or not according to the current skylight opening and the vehicle speed signal (based on early-stage calculation and calibration data);

5) if the SRM judges that the existing working condition causes the wind vibration problem, the skylight is automatically opened to a comfortable position (a calculation and calibration value);

6) if the SRM judges that the existing working condition does not cause the wind vibration problem, the skylight does not perform any action;

7) if the skylight is controlled manually or by voice, the driver exits from the intelligent driving skylight mode and enters into a conventional control skylight mode.

According to the scheme, the automatic control of the wind vibration problem of the skylight based on the vehicle speed is realized through the control method. The skylight is automatically closed/opened to an appointed optimal comfortable position point (a design calibration value) under a specific vehicle speed working condition (the design calibration value) through the ESC, the BCM and the skylight controller, the problem of wind vibration of the conventional skylight is solved, and meanwhile, the skylight can be opened during running.

The scheme of this application has following beneficial effect:

based on the early-stage calculation and the calibration of the wind vibration speed interval, the opening degree of the skylight is automatically controlled by identifying the range of the vehicle speed so as to improve the comfort degree of drivers and passengers;

based on the judgment of the opening degree of the skylight and the vehicle speed, the logical and mechanical operation of the opening degree of the skylight is automatically controlled through the skylight controller, so that the wind vibration phenomenon is automatically eliminated, and the comfort is embodied;

the intelligent control mode is set as a selectable option, so that the operation of drivers and passengers is facilitated.

The present application further provides the following embodiments:

an intelligent control device of a panoramic sunroof, comprising:

In some embodiments, the determining module determines whether there is a wind vibration problem according to the current opening degree, and specifically includes:

In some embodiments, the execution module is further to:

if there is no wind vibration problem, no operation is performed.

In some embodiments, the apparatus further comprises:

In some embodiments, the mode selection module is further configured to:

With regard to the apparatus in the above embodiment, the specific steps in which the respective modules perform operations have been described in detail in the embodiment related to the method, and are not described in detail herein.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. An intelligent control method for a panoramic sunroof is characterized by comprising the following steps:

2. The method according to claim 1, wherein the judging whether the wind vibration problem exists according to the current opening degree comprises the following steps:

3. The method of claim 1, further comprising:

if there is no wind vibration problem, no operation is performed.

4. The method according to any one of claims 1-3, further comprising:

5. The method of claim 4, further comprising:

6. An intelligent control device of a panoramic sunroof, comprising:

7. The apparatus according to claim 6, wherein the determining module determines whether there is a wind vibration problem according to the current opening degree, and specifically includes:

8. The apparatus of claim 7, wherein the execution module is further configured to:

if there is no wind vibration problem, no operation is performed.

9. The apparatus of any of claims 6-8, further comprising:

10. The apparatus of claim 9, wherein the mode selection module is further configured to: