阅读说明：本技术 车辆的控制方法、控制装置、发动机管理系统和车辆 (Vehicle control method, control device, engine management system and vehicle ) 是由 饶小康 刘欣 程瑞涛 王桂波 马相明 薛莹 于 2020-07-02 设计创作，主要内容包括：本发明公开了一种车辆的控制方法、控制装置、发动机管理系统和车辆,所述控制方法包括：车辆进入加速踏板自学习模式后,检测加速踏板的开度；当检测到加速踏板固定在一开度且持续时间超过设定时间后,将该开度设置为加速踏板的初始零位；对加速踏板的开度进行线性学习,并在学习成功后控制车辆正常工作。本发明实施例的控制方法,通过触发加速踏板自学习功能,能够使不同驾驶员匹配不同的加速踏板初始零位,并对加速踏板的开度进行线性学习,从而满足不同驾驶员的驾驶舒适性要求,提高了驾驶员的驾驶体验。(The invention discloses a control method and a control device of a vehicle, an engine management system and the vehicle, wherein the control method comprises the following steps: after the vehicle enters an accelerator pedal self-learning mode, detecting the opening degree of an accelerator pedal; when the accelerator pedal is detected to be fixed at an opening and the duration time exceeds the set time, setting the opening as an initial zero position of the accelerator pedal; and linearly learning the opening degree of the accelerator pedal, and controlling the vehicle to normally work after the learning is successful. According to the control method provided by the embodiment of the invention, different drivers can be matched with different initial zero positions of the accelerator pedal by triggering the accelerator pedal self-learning function, and the opening of the accelerator pedal is linearly learned, so that the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.)

1. A control method of a vehicle, characterized by comprising:

after the vehicle enters an accelerator pedal self-learning mode, detecting the opening degree of an accelerator pedal;

when the accelerator pedal is detected to be fixed at an opening degree and the duration time exceeds the set time, setting the opening degree as an initial zero position of the accelerator pedal;

and linearly learning the opening degree of the accelerator pedal, and controlling the vehicle to normally work after the learning is successful.

2. The control method according to claim 1, characterized by further comprising:

after the vehicle ignition switch is switched on, detecting whether an engine is started and whether an accelerator pedal self-learning function is triggered;

and if the engine is not started and the accelerator pedal self-learning function is triggered, controlling the vehicle to enter the accelerator pedal self-learning mode.

3. The control method according to claim 2, characterized by further comprising:

and if the engine is not started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work.

4. The control method according to claim 2, characterized by further comprising:

and if the engine is started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work.

5. The control method according to claim 2, characterized by further comprising:

if the engine is started and the accelerator pedal self-learning function is triggered, sending out prompt information of engine flameout, and detecting whether the engine is flameout;

and if the engine is flamed out, controlling the vehicle to enter the accelerator pedal self-learning mode.

6. The control method according to claim 5, characterized by further comprising:

and if the engine is not shut down, controlling the vehicle to normally work.

7. A control apparatus of a vehicle, characterized by comprising:

the detection module is used for detecting the opening degree of an accelerator pedal after a vehicle enters an accelerator pedal self-learning mode;

the setting module is used for setting the opening degree as an initial zero position of the accelerator pedal after the accelerator pedal is detected to be fixed at the opening degree and the duration time exceeds the set time;

the learning module is used for performing linear learning on the opening of the accelerator pedal;

and the control module is used for controlling the vehicle to normally work after the learning is successful.

8. The control device of claim 7, wherein the control module is further configured to:

after the vehicle ignition switch is switched on, detecting whether an engine is started and whether an accelerator pedal self-learning function is triggered;

controlling the vehicle to enter the accelerator pedal self-learning mode if the engine is not started and the accelerator pedal self-learning function is triggered;

if the engine is not started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work;

if the engine is started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work;

if the engine is started and the accelerator pedal self-learning function is triggered, sending out prompt information of engine flameout, and detecting whether the engine is flameout; if the engine is flamed out, controlling the vehicle to enter the accelerator pedal self-learning mode; and if the engine is not shut down, controlling the vehicle to normally work.

9. An engine management system, comprising: the control device of the vehicle according to claim 7 or 8.

10. A vehicle, characterized by comprising: the engine management system of claim 9.

Technical Field

The present invention relates to the field of vehicle technologies, and in particular, to a vehicle control method, a vehicle control device, an engine management system, and a vehicle.

Background

In the existing automobile products, once an accelerator pedal is cured in development, the structure and the performance of the accelerator pedal are fixed, but the same accelerator pedal can only be suitable for part of customers from a man-machine perspective due to different requirements of different customers on the feedback force of the accelerator pedal (the supporting force of the accelerator pedal on the sole).

And when some customers drive for a long time, the driving comfort requirement cannot be met due to too large or too small supporting force of the accelerator pedal, so that the fatigue feeling of acceleration driving is felt. However, fatigue driving is not favorable for safe driving, fuel consumption is increased due to repeated change of the position of the accelerator pedal caused by fatigue, energy conservation and environmental protection are not favorable, and meanwhile, the support force of the accelerator pedal influences judgment on the dynamic performance of the whole vehicle.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above.

Therefore, a first objective of the present invention is to provide a control method for a vehicle, which can enable different drivers to match different initial zero positions of an accelerator pedal by triggering an accelerator pedal self-learning function, and perform linear learning on the opening degree of the accelerator pedal, so as to meet driving comfort requirements of different drivers and improve driving experience of the drivers.

A second object of the present invention is to provide a control device for a vehicle.

A third object of the invention is to propose an engine management system.

A fourth object of the invention is to propose a vehicle.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a control method for a vehicle, including: after the vehicle enters an accelerator pedal self-learning mode, detecting the opening degree of an accelerator pedal; when the accelerator pedal is detected to be fixed at an opening degree and the duration time exceeds the set time, setting the opening degree as an initial zero position of the accelerator pedal; and linearly learning the opening degree of the accelerator pedal, and controlling the vehicle to normally work after the learning is successful.

According to the control method of the vehicle, after the vehicle enters an accelerator pedal self-learning mode, the opening degree of the accelerator pedal is detected firstly, when the fact that the accelerator pedal is fixed at the opening degree and the duration time exceeds the set time is detected, the opening degree is set to be the initial zero position of the accelerator pedal, linear learning is conducted on the opening degree of the accelerator pedal, and the vehicle is controlled to work normally after the learning is successful. Therefore, different drivers can be matched with different initial zero positions of the accelerator pedal by triggering the accelerator pedal self-learning function, linear learning is carried out on the opening degree of the accelerator pedal, the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

In addition, the control method of the vehicle according to the above embodiment of the present invention may further have the following additional technical features:

in one embodiment of the present invention, the control method of a vehicle described above further includes: after the vehicle ignition switch is switched on, detecting whether an engine is started and whether an accelerator pedal self-learning function is triggered; and if the engine is not started and the accelerator pedal self-learning function is triggered, controlling the vehicle to enter the accelerator pedal self-learning mode.

In one embodiment of the present invention, the control method of a vehicle described above further includes: and if the engine is not started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work.

In one embodiment of the present invention, the control method of a vehicle described above further includes: and if the engine is started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work.

In one embodiment of the present invention, the control method of a vehicle described above further includes: if the engine is started and the accelerator pedal self-learning function is triggered, sending out prompt information of engine flameout, and detecting whether the engine is flameout; and if the engine is flamed out, controlling the vehicle to enter the accelerator pedal self-learning mode.

In one embodiment of the present invention, the control method of a vehicle described above further includes: and if the engine is not shut down, controlling the vehicle to normally work.

In order to achieve the above object, an embodiment of a second aspect of the present invention provides a control apparatus for a vehicle, including: the detection module is used for detecting the opening degree of an accelerator pedal after a vehicle enters an accelerator pedal self-learning mode; the setting module is used for setting the opening degree as an initial zero position of the accelerator pedal after the accelerator pedal is detected to be fixed at the opening degree and the duration time exceeds the set time; the learning module is used for performing linear learning on the opening of the accelerator pedal; and the control module is used for controlling the vehicle to normally work after the learning is successful.

According to the control device of the vehicle, after the vehicle enters the accelerator pedal self-learning mode, the opening degree of the accelerator pedal is detected through the detection module, when the fact that the accelerator pedal is fixed at the opening degree and the duration time exceeds the set time is detected, the opening degree is set to be the initial zero position of the accelerator pedal through the setting module, linear learning is conducted on the opening degree of the accelerator pedal through the learning module, and the control module controls the vehicle to normally work after the learning is successful. Therefore, different drivers can be matched with different initial zero positions of the accelerator pedal by triggering the accelerator pedal self-learning function, linear learning is carried out on the opening degree of the accelerator pedal, the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

In addition, the control device for a vehicle according to the above embodiment of the present invention may further have the following additional features:

in one embodiment of the present invention, the control module is further configured to: after the vehicle ignition switch is switched on, detecting whether an engine is started and whether an accelerator pedal self-learning function is triggered; controlling the vehicle to enter the accelerator pedal self-learning mode if the engine is not started and the accelerator pedal self-learning function is triggered; if the engine is not started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work; if the engine is started and the accelerator pedal self-learning function is not triggered, controlling the vehicle to normally work; if the engine is started and the accelerator pedal self-learning function is triggered, sending out prompt information of engine flameout, and detecting whether the engine is flameout; if the engine is flamed out, controlling the vehicle to enter the accelerator pedal self-learning mode; and if the engine is not shut down, controlling the vehicle to normally work.

In order to achieve the above object, an engine management system according to a third aspect of the present invention includes a control device for a vehicle according to the second aspect of the present invention.

According to the engine management system, different drivers can be matched with different initial zero positions of the accelerator pedal through the control device of the vehicle, and the opening degree of the accelerator pedal is linearly learned, so that the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

To achieve the above object, a fourth aspect of the present invention provides a vehicle including the engine management system according to the third aspect of the present invention.

According to the vehicle provided by the embodiment of the invention, different drivers can be matched with different initial zero positions of the accelerator pedal through the engine management system, and the opening degree of the accelerator pedal is linearly learned, so that the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flowchart of a control method of a vehicle according to one embodiment of the invention;

FIG. 2 is a logic diagram of a control method of a vehicle according to a specific embodiment of the invention; and

fig. 3 is a block schematic diagram of a control apparatus of a vehicle according to one embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A control method of a vehicle, a control apparatus of a vehicle, an engine management system, and a vehicle according to an embodiment of the invention will be described below with reference to the drawings.

The embodiment of the application provides a control method of a vehicle aiming at the problems that in the related art, part of drivers cannot meet driving comfort requirements and fatigue feeling of accelerated driving due to too large or too small supporting force of an accelerator pedal when driving for a long time.

According to the control method of the vehicle, after the vehicle enters the accelerator pedal self-learning mode, the opening degree of the accelerator pedal is detected, when the fact that the accelerator pedal is fixed at the opening degree and the duration time exceeds the set time is detected, the opening degree is set to be the initial zero position of the accelerator pedal, linear learning is conducted on the opening degree of the accelerator pedal, the vehicle is controlled to normally work after the learning is successful, the problems in the related technologies are solved, and meanwhile the driving experience of a driver is improved.

Fig. 1 is a flowchart of a control method of a vehicle according to one embodiment of the invention. In an embodiment of the present invention, the vehicle may include a fuel vehicle, a new energy vehicle (i.e., an electric vehicle), a hybrid vehicle, and the like.

As shown in fig. 1, a control method of a vehicle according to an embodiment of the present invention may include the steps of:

and S1, detecting the opening degree of the accelerator pedal after the vehicle enters the accelerator pedal self-learning mode.

In the embodiment of the invention, a physical button for triggering the accelerator pedal self-learning mode can be added on the multifunctional steering wheel or the multimedia air-conditioning platform of the vehicle, or a virtual button for triggering the accelerator pedal self-learning mode can be added on the multimedia display screen of the vehicle, which is not limited herein. Therefore, the application of the invention only needs to add a physical key or a virtual key on the vehicle, and the cost is low.

Specifically, after entering the vehicle, the driver can judge whether to perform self-learning of the accelerator pedal according to the self requirement, and when the requirement is needed, the vehicle can enter the accelerator pedal self-learning mode by triggering the key of the accelerator pedal self-learning mode.

In one embodiment of the present invention, the control method of the vehicle may further include detecting whether the engine is started and the accelerator self-learning function is triggered after the ignition switch of the vehicle is turned on, and controlling the vehicle to enter the accelerator self-learning mode if the engine is not started and the accelerator self-learning function is triggered.

It should be noted that the accelerator pedal self-learning function described in the above embodiment may be implemented by an Electronic Control Unit (ECU) software of an engine through secondary programming, where the ECU software of the engine ECU has a programmable function, and zero setting of the accelerator pedal may be implemented through software development, so as to implement an accelerator pedal characteristic function for different drivers, and meet requirements of different drivers on the accelerator pedal supporting force.

And S2, when the accelerator pedal is detected to be fixed at an opening degree and the duration time exceeds the set time, setting the opening degree as the initial zero position of the accelerator pedal. The setting time can be calibrated according to actual conditions, for example, the setting time can be 10 seconds.

In the embodiment of the invention, based on the current Engine Management System (EMS) System, under the condition that the hardware of the Electronic Control Unit (ECU) of the Engine is not changed, a new time counter (clock) can be added by software, and as the ECU of the electronic control unit of the Engine is always in a constant power state, the time counter can be used for timing when the ignition switch of the vehicle is turned on or off.

And S3, performing linear learning on the opening degree of the accelerator pedal, and controlling the vehicle to normally work after the learning is successful.

Specifically, after the ignition switch of the vehicle is turned on, the engine management system EMS of the vehicle will detect (monitor) whether the engine is started and whether the accelerator self-learning function is triggered in real time, and if it is detected that the engine is not started and the accelerator self-learning function is triggered, it indicates that the driver needs to perform the accelerator self-learning, and at this time, the vehicle can be controlled to enter the accelerator self-learning mode. After the vehicle enters an accelerator pedal self-learning mode, a driver can set the initial zero position of the accelerator pedal according to the requirement of the driver. The driver only needs to fix the accelerator pedal at an opening degree (namely, the initial zero position of the accelerator pedal is required to be set), then the time counter starts to count time, when the engine management system EMS of the vehicle detects that the accelerator pedal is fixed at the opening degree and the duration time exceeds 10 seconds, the opening degree can be set to be the initial zero position of the accelerator pedal (namely, the opening degree is less than the opening degree, the opening degree is defined to be 0 by the engine management system EMS), the opening degree of the accelerator pedal is linearly learned, and the normal starting and driving stage can be started after the self-learning is successful.

In addition, in an embodiment of the present invention, the method for controlling a vehicle further includes controlling the vehicle to operate normally if the engine is not started and the accelerator pedal self-learning function is not triggered, and controlling the vehicle to operate normally if the engine is started and the accelerator pedal self-learning function is not triggered.

Specifically, after the ignition switch of the vehicle is turned on, the engine management system EMS of the vehicle will detect (monitor) whether the engine is started and the accelerator self-learning function is triggered in real time, and if it is detected that the engine is not started and the accelerator self-learning function is not triggered or the engine is started and the accelerator self-learning function is not triggered, it indicates that the driver does not need to perform the accelerator self-learning, and at this time, the vehicle can be controlled to work normally.

Further, in order to improve the fault-tolerant rate of the vehicle entering the accelerator pedal self-learning mode and further improve the driving experience of the driver, in an embodiment of the invention, the vehicle control method further includes sending an engine stall prompt message and detecting whether the engine stalls if the engine is started and the accelerator pedal self-learning function is triggered; if the engine is flamed out, controlling the vehicle to enter an accelerator pedal self-learning mode; and if the engine is not shut down, controlling the vehicle to normally work.

Specifically, after an ignition switch of the vehicle is turned on, an engine management system EMS of the vehicle detects (monitors) whether an engine is started and an accelerator pedal self-learning function is triggered in real time, if the engine is started and the accelerator pedal self-learning function is triggered, the situation that a driver needs to perform the self-learning of the accelerator pedal is shown, but the situation that the operation flow is poor is not clear, prompt information of engine flameout can be sent out at the moment (for example, please flameout the engine so that the vehicle enters a self-learning mode of the accelerator pedal), whether the engine is flameout is detected (monitored) in real time, and if the engine flameout is detected, the vehicle can be controlled to enter the accelerator pedal self-learning mode and perform subsequent self-learning operation; if the engine is not shut down, the vehicle can be controlled to work normally.

The control method of the vehicle of the invention is described in detail below with reference to fig. 2:

referring to fig. 2, after a key-on (ignition switch is turned on), the engine management system EMS determines whether the engine is in a starting state, in order to ensure safety, under the condition that the key-on (ignition switch is turned on) of the vehicle and the engine is not started, the engine management system EMS detects whether a self-study mode (accelerator pedal self-study mode) is triggered, if the flag bit is 1 (i.e., the accelerator pedal self-study mode is triggered), the accelerator pedal self-study mode can be entered, when the accelerator pedal is fixed at an opening, a counter clock starts to time, and when the clock is greater than or equal to 10 seconds, the engine management system EMS defines the opening as an initial zero position (i.e., below the opening, the engine management system EMS defines the opening as 0) and linearly learns the opening, and after the self-study is successful, the engine management system EMS can enter a normal starting and driving stage.

After the key-on (ignition switch is turned on) of the vehicle, if the engine is in a starting state and a self-study mode (an accelerator pedal self-learning mode) is in a trigger state, prompting that the engine is required to be shut down first and then self-learn, detecting whether the engine is started by an Engine Management System (EMS), and entering the self-learning mode if the engine is shut down, wherein the method is the same as the method; if the engine is started, the vehicle enters a normal working state.

After the key-on (ignition switch is turned on) of the vehicle, if the engine is in a starting state and the self-study mode is in an untriggered state, the vehicle enters a normal driving working state.

In summary, according to the control method of the vehicle of the embodiment of the invention, after the vehicle enters the accelerator pedal self-learning mode, the opening degree of the accelerator pedal is firstly detected, when the accelerator pedal is detected to be fixed at an opening degree and the duration time exceeds the set time, the opening degree is set as the initial zero position of the accelerator pedal, the linear learning is performed on the opening degree of the accelerator pedal, and the vehicle is controlled to normally work after the learning is successful. Therefore, different drivers can be matched with different initial zero positions of the accelerator pedal by triggering the accelerator pedal self-learning function, linear learning is carried out on the opening degree of the accelerator pedal, the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

Fig. 3 is a block schematic diagram of a control apparatus of a vehicle according to one embodiment of the invention.

As shown in fig. 3, the control device for a vehicle according to the embodiment of the present invention may include: a detection module 100, a setup module 200, a learning module 300, and a control module.

The detection module 100 is used for detecting the opening degree of an accelerator pedal after a vehicle enters an accelerator pedal self-learning mode.

The setting module 200 is configured to set an opening degree as an initial zero position of an accelerator pedal after detecting that the accelerator pedal is fixed at the opening degree and the duration time exceeds a set time.

The learning module 300 is used for linear learning of the opening degree of the accelerator pedal.

The control module 400 is used to control the vehicle to operate normally after the learning is successful.

In one embodiment of the invention, the control module 400 is further configured to detect whether the engine is started and whether the accelerator pedal self-learning function is triggered after the vehicle ignition switch is turned on; if the engine is not started and the accelerator pedal self-learning function is triggered, controlling the vehicle to enter an accelerator pedal self-learning mode; if the engine is not started and the self-learning function of the accelerator pedal is not triggered, controlling the vehicle to normally work; if the engine is started and the self-learning function of the accelerator pedal is not triggered, controlling the vehicle to normally work; if the engine is started and the self-learning function of the accelerator pedal is triggered, sending out the flameout prompt information of the engine and detecting whether the engine is flameout; if the engine is flamed out, controlling the vehicle to enter an accelerator pedal self-learning mode; and if the engine is not shut down, controlling the vehicle to normally work.

It should be noted that, for details that are not disclosed in the control device of the vehicle according to the embodiment of the present invention, please refer to details that are disclosed in the control method of the vehicle according to the embodiment of the present invention, and detailed description thereof is omitted here.

To sum up, according to the control device of the vehicle in the embodiment of the present invention, after the vehicle enters the accelerator pedal self-learning mode, the detecting module detects the opening degree of the accelerator pedal, and when the accelerator pedal is detected to be fixed at an opening degree and the duration time exceeds the set time, the setting module sets the opening degree as the initial zero position of the accelerator pedal, and the learning module performs linear learning on the opening degree of the accelerator pedal, and the control module controls the vehicle to normally work after the learning is successful. Therefore, different drivers can be matched with different initial zero positions of the accelerator pedal by triggering the accelerator pedal self-learning function, linear learning is carried out on the opening degree of the accelerator pedal, the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

In order to implement the above embodiment, the present invention also provides an engine management system including the control device of the vehicle.

According to the engine management system, different drivers can be matched with different initial zero positions of the accelerator pedal through the control device of the vehicle, and the opening degree of the accelerator pedal is linearly learned, so that the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

In order to implement the above embodiment, the invention also provides a vehicle including the above engine management system.

According to the vehicle provided by the embodiment of the invention, different drivers can be matched with different initial zero positions of the accelerator pedal through the engine management system, and the opening degree of the accelerator pedal is linearly learned, so that the driving comfort requirements of different drivers are met, and the driving experience of the drivers is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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