Adaptive steering control method and system for automotive lens module

Abstract

The application discloses a kind of self-adapting steering control method and system of automobile lens module, method includes: the first light path is generated based on the advancing action of vehicle body, first light path forms main illumination area;The intended steering direction of vehicle body is obtained;Response steering direction to generate second light path, second light path is fused with first light path, to generate sub-illumination area in the same side of main illumination area corresponding steering direction;By forming second light path in the steering process of vehicle body, second light path forms sub-illumination area in the same direction with steering, effectively expand the illumination area, can well help user to drive safely.

Description

Technical Field

[0001] This invention relates to the field of vehicle lighting control, and more particularly to an adaptive steering control method and system for an automotive lens module. Background Technology

[0002] Vehicle lights are a very important component of automobiles, affecting not only driving safety at night or in inclement weather, but also the vehicle's aesthetics and branding. Existing technology, such as the Chinese utility model patent application number CN202122445964.5, discloses a vehicle light LED light source module, including a reflector cup, an illumination cylinder, and an illumination lens. A heat sink is also provided at the bottom of the reflector cup, and a light source support is provided on the side of the heat sink near the reflector cup. The light source support penetrates the bottom surface of the reflector cup, and an illumination light source is also provided on the light source support. All illumination light sources are located inside the reflector cup. In the aforementioned prior art, the high beam and low beam illumination can be easily adjusted using the high / low beam adjustment component. Furthermore, by placing the illumination source on a light source support located on the side of the heat sink, installation of the illumination source is more convenient. Simultaneously, the heat generated by the illumination source during operation is transferred to the light source support and the heat sink, and then dissipated through the heat sink, improving the heat dissipation effect of the lamp and preventing aging of the illumination source due to excessive temperature, thus extending the lifespan of the light source module. However, in actual use, it has been found that users have different needs for the illumination area in the turning and non-turning directions when turning the vehicle. However, in existing headlights, the headlights cannot follow the vehicle's movement to adjust the illumination area accordingly. Therefore, a more reasonable solution is urgently needed to address the aforementioned technical problems. Summary of the Invention

[0003] To address the problem that existing vehicle lighting control methods are relatively simple and cannot expand the lighting area during vehicle steering, this invention provides a solution.

[0004] To achieve the above objectives, the present invention provides an adaptive steering control method for an automotive lens module, comprising:

[0005] A first light path is generated based on the forward motion of the vehicle body, and the first light path forms the main illumination area;

[0006] Obtain the expected steering direction of the vehicle body;

[0007] In response to the turning direction, a second optical path is generated, which is merged with the first optical path to generate a sub-illumination area on the same side of the main illumination area corresponding to the turning direction.

[0008] As an improvement of the present invention, the step of obtaining the steering direction is as follows:

[0009] The first angle value between the optical axis direction of the first optical path as the standard direction and the moving direction of the vehicle body as the real-time direction;

[0010] The turning direction is calculated based on the first angle value.

[0011] As an improvement of the present invention, the sub-lighting area has the same brightness as the main lighting area.

[0012] As an improvement of the present invention, a second angle value is formed between the first optical path and the second optical path, and the second angle value is a multiple of the second angle value.

[0013] As an improvement of the present invention, when the vehicle body turning time is longer than a preset time, the illumination formed in the sub-illumination area is increased.

[0014] As an improvement of the present invention, a system is used to perform any of the methods described above; the system includes a first lighting module, a second lighting module, and a processing module;

[0015] The processing module generates a first light path based on the forward movement of the vehicle body, and the first light path forms the main lighting area.

[0016] The processing module obtains the expected steering direction of the vehicle body;

[0017] The processing module responds to the turning direction so that the first lighting module generates a second optical path, which is merged with the first optical path to generate a sub-lighting area on the same side of the main lighting area corresponding to the turning direction.

[0018] As an improvement of the present invention, the step of obtaining the steering direction is as follows:

[0019] The processing module uses the optical axis direction of the first optical path as the standard direction and the moving direction of the vehicle body as the real-time direction. It then calculates the turning direction based on the first angle value between the moving direction and the standard direction.

[0020] As an improvement of the present invention, the sub-lighting area has the same brightness as the main lighting area.

[0021] As an improvement of the present invention, a second angle value is formed between the first optical path and the second optical path, and the second angle value is a multiple of the second angle value.

[0022] As an improvement of the present invention, when the processing module detects that the vehicle body turning time is higher than a preset time, the illumination formed in the sub-lighting area is increased.

[0023] The beneficial effects of this invention are as follows: Compared with the prior art, this invention provides an adaptive steering control method and system for an automotive lens module. The method includes: generating a first optical path based on the forward movement of the vehicle body, the first optical path forming a main illumination area; obtaining the expected steering direction of the vehicle body; responding to the steering direction to generate a second optical path, the second optical path being merged with the first optical path to generate a sub-illumination area on the same side of the main illumination area corresponding to the steering direction; by forming the second optical path during the vehicle body's steering process, and the second optical path forming a sub-illumination area in the same direction as the steering, the illumination area is effectively expanded, which can greatly help users drive safely. Attached Figure Description

[0024] Figure 1 This is a process flow diagram of the present invention;

[0025] Figure 2 This is a perspective view of the lens module of the present invention;

[0026] Figure 3 This is an exploded view of the lens module of the present invention;

[0027] Figure 4 This is a perspective view of the light guide component of the lens module of the present invention;

[0028] Figure 5 This is a schematic diagram of the heat sink and reflector bowl of the lens module of the present invention;

[0029] Figure 6 This is a schematic diagram of the heat dissipation component and reflector bowl of the lens module of the present invention from another angle.

[0030] Figure 7 This is a schematic diagram of the second optical path of the present invention;

[0031] Figure 8 This is a schematic diagram of the lighting area of ​​the present invention.

[0032] The symbols for the main components are explained below:

[0033] 1. Mounting bracket; 11. First light-emitting module; 12. Second light-emitting module; 13. Reflector bowl;

[0034] 14. First heat dissipation slope; 2. Lens; 21. Notch; 3. Light guide; 31. Toothed section;

[0035] 32. Light-emitting surface; 33. Concentrating part; 4. Heat sink; 5. Connecting cylinder; 6. Heat sink component;

[0036] 62. Second heat dissipation slope. Detailed Implementation

[0037] To more clearly illustrate the present invention, the invention will be further described below with reference to the accompanying drawings.

[0038] In the following description, specific examples are given to provide a more in-depth understanding of the invention. It is obvious that the described embodiments are merely some, not all, of the embodiments of the invention. It should be understood that the specific embodiments described are for illustrative purposes only and are not intended to limit the scope of the invention.

[0039] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0040] To address the aforementioned technical problems, this application provides an adaptive steering control method for automotive lens modules. Please refer to the appendix. Figure 1 The method includes: generating a first optical path based on the forward movement of the vehicle body, the first optical path forming a main illumination area; obtaining the expected turning direction of the vehicle body; generating a second optical path in response to the turning direction, the second optical path being merged with the first optical path to generate a sub-illumination area on the same side of the main illumination area corresponding to the turning direction;

[0041] To better illustrate the solution of this application, it is explained in conjunction with a practical application scenario: During nighttime driving, the vehicle's headlight system activates to obtain a first light path. The main lighting area formed by the first light path helps the user navigate at night, providing safety assurance. When a right turn is required, the headlight system activates to obtain a second light path. The second light path forms a sub-lighting area to the right of the main lighting area. The sub-lighting area effectively expands the overall lighting area, providing a clearer understanding of road conditions when turning right. When the vehicle completes the turn, the second light path is correspondingly turned off, making the overall lighting control method more flexible. It is evident that by forming a second light path during vehicle turning, and with the second light path forming a sub-lighting area in the same direction as the turn, the lighting area is effectively expanded, greatly assisting the user in safe driving.

[0042] In the specific plan, the steps for obtaining the steering direction are as follows:

[0043] Using the optical axis direction of the first optical path as the standard direction and the vehicle's movement direction as the real-time direction, a first angle value is calculated between the movement direction and the standard direction. The turning direction is then deduced based on this first angle value. Specifically, reference values ​​are assigned to both sides of the standard direction formed by the optical axis of the first optical path. When the vehicle turns right, the angle value between the movement direction and the standard direction is positive; conversely, when the vehicle turns right, the angle value between the movement direction and the standard direction is negative. It can be seen that the vehicle's rotation direction can be quickly determined using the above method, and the formation of the second optical path can then be controlled based on this rotation direction. In a specific implementation scheme, the above calculation can be achieved by using a main control chip equipped with a gyroscope, a multi-axis accelerometer, or a magnetic sensor.

[0044] In this embodiment, the brightness of the sub-lighting area is the same as that of the main lighting area. It is easy to understand that by controlling the power of the light-emitting unit in the vehicle lighting system, the sub-lighting area and the main lighting area can be kept the same. Under this design, there will be no obvious division between light and dark in the sub-lighting area and the main lighting area, forming a more integrated lighting area, which can provide more stable supplementary lighting for the driving environment.

[0045] In this embodiment, a second angle value is formed between the first and second optical paths, and the second angle value is a multiple of the first angle value. It is easy to understand that the second angle value formed by the first and second optical paths can more directly affect the lighting effect of the lighting area. If the ratio between the first and second angle values ​​is the same, the main lighting area and the sub-lighting area are prone to excessive folding during vehicle turning, resulting in the sub-lighting area formed by the second optical path being too small and difficult to achieve an effective supplementary lighting effect. For example, during vehicle turning, the value of the first angle value is generally maintained within the turning range of 1-30°. If the second angle value follows the first angle value, the aforementioned situation of the sub-lighting area formed by the second optical path being too small will occur. Therefore, the second angle value is a multiple of the first angle value, and selecting a multiple between 1.2 and 1.4 can enable the sub-lighting area to have a better lighting area.

[0046] In a better solution, when the vehicle maintains its steering action for a longer period than a preset time, the illumination area formed by the sub-lighting area is increased. It is easy to understand that when the vehicle needs to maintain a continuous steering action, the situation is that the vehicle is making a large turn, so the requirements for the illumination area are greater. Therefore, by increasing the illumination area of ​​the sub-lighting area, it is possible to better meet the user's usage scenario.

[0047] The present invention also provides an adaptive steering control system for an automotive lens module. The system includes a first lighting module, a second lighting module, and a processing module. The processing module generates a first optical path based on the forward movement of the vehicle body, and the first optical path forms a main lighting area. The processing module obtains the expected steering direction of the vehicle body. The processing module responds to the steering direction to generate a second optical path, and the second optical path is merged with the first optical path to generate a sub-lighting area on the same side of the main lighting area corresponding to the steering direction.

[0048] In a specific embodiment, the step of obtaining the steering direction is as follows: the processing module takes the optical axis direction of the first optical path as the standard direction, the movement direction of the vehicle body as the real-time direction, and the first angle value between the movement direction and the standard direction, and then calculates the steering direction based on the first angle value; the brightness of the sub-illumination area is the same as that of the main illumination area; a second angle value is formed between the first optical path and the second optical path, and the second angle value is a multiple of the second angle value; when the processing module detects that the vehicle body turning time is higher than a preset time, the illumination formed in the sub-illumination area is increased; this system is for executing or implementing the method of the aforementioned embodiment, and therefore has the same function and beneficial effect as the aforementioned embodiment, so it will not be described in detail.

[0049] In terms of specific physical structure, this invention also provides an automotive lens module that supports intelligent follow-up; please refer to the appendix. Figure 2-8 The system includes a mounting frame 1, a sensing module, a lens 2, and a light guide 3. The mounting frame 1 is equipped with a first light-emitting module and a second light-emitting module. The sensing module is located inside the mounting frame 1 and is electrically connected to the first and second light-emitting modules. The sensing module is used to collect vehicle steering information to control the opening and closing of the second light-emitting module. The lens 2 is mounted on the first surface of the mounting frame 1. The light emitted by the first light-emitting module passes through the lens 2 to generate a first light path, which forms a main illumination area. The edge of the lens 2 is provided with a notch 21 for accommodating the light guide 3. The light emitted by the second light-emitting module passes through the light guide 3 to generate a second light path, which forms a sub-illumination area on the same side of the vehicle steering direction in the main illumination area.

[0050] In practical use, the first light-emitting module and lens 2 are used to arrange the first light path, forming the main lighting area and providing the function of high beam or low beam lighting in the vehicle lighting system, providing a basic lighting solution. A further solution also includes a sensor module, which can determine the vehicle's turning motion during movement. The determination result is left turn or right turn. When a turning motion occurs, the second light-emitting module and light guide 3 form a second light path, thereby forming a sub-lighting area on the same side of the main lighting area corresponding to the turning direction, thus expanding the lighting area. It can be seen that by collecting data on the vehicle's movement state through the sensor module, a second light path is formed when the vehicle is turning, and the second light path forms a sub-lighting area in the same direction as the turning motion, effectively expanding the lighting area and greatly assisting users in safe driving.

[0051] Regarding the specific arrangement and implementation structure of the second light path, firstly, the second light-emitting module 12 is correspondingly set as the first LED module and the second LED module. When the vehicle turns to the right, the first LED module is activated and the second LED module is deactivated, thereby forming a sub-lighting area on the right side of the main lighting area; when the vehicle turns to the left, the first LED module is deactivated and the second LED module is activated, thus forming a sub-lighting area on the right side of the main lighting area; alternatively, a steering motor can be set, which also causes the lens 2 to deflect, so that the light sources of the first light-emitting module 11 and the second light-emitting module 12 enter the lens 2 to form the main lighting area and the sub-lighting area.

[0052] As an important embodiment, the second light-emitting module includes at least two light-emitting units, and the number of light guides 3 is the same as the number of light-emitting units. Multiple sets of light guides 3 are equally distributed around the optical axis of the first optical path, and the two light guides 3 arbitrarily distributed on both sides of the optical axis are provided with light-emitting slopes on opposite sides. It is easy to understand that the first light-emitting module consists of a control board and light-emitting units on the control board. To better illustrate this embodiment, two light-emitting units are set, namely the first light-emitting unit and the second light-emitting unit. The first light-emitting unit and the second light-emitting unit are distributed left and right around the optical axis of the first optical path. Correspondingly, the light-emitting slopes of the two light guides 3 are also arranged opposite to each other. When the vehicle turns right, the first light-emitting unit cooperates with the right-side light guide 3 and forms a second optical path through the light-emitting slope, ultimately forming a sub-illumination area. The light-emitting slope achieves good light path guidance to obtain the sub-illumination area.

[0053] In another implementation, the second light-emitting module includes at least two light-emitting units, and the number of light guides 3 is the same as the number of light-emitting units. Multiple sets of light guides 3 are equally distributed around the optical axis of the first optical path. The end of any light guide 3 away from the light-emitting unit forms a toothed portion 31, and the relative tooth surfaces of two toothed portions 31 arbitrarily distributed on both sides of the optical axis are light-emitting surfaces 32. Similar to the aforementioned embodiment, by forming light-emitting surfaces 32 on the relative single side of the two toothed portions 31, the formation of the second optical path is guided. Multiple small light-emitting surfaces 32 are used to form output light with more stable light intensity and more stable light uniformity. On the other hand, this implementation is simpler to process, and the second optical path can be drawn out by controlling the matching angle of multiple light-emitting surfaces 32 without worrying that the second optical path will block the lens 2.

[0054] In this embodiment, the mounting bracket 1 also includes a reflector bowl 13, the wrist of which covers the first light-emitting module. During operation, the light source emitted by the first light-emitting module is focused and refracted by the reflector bowl 13 and then emitted from the lens 2 to form a first light path. The reflector bowl 13 can focus the light source of the first light-emitting module to obtain a brighter lighting effect.

[0055] In this embodiment, a heat sink 4 is provided on the side of the mounting column bracket away from the lens 2. The heat sink 4 is provided with a first clearance part for exposing the reflector bowl 13. The first module specifically includes a main control board and multiple light-emitting units on the main control board. When the multiple light-emitting units are working, the main control board and the light-emitting units mounted on it will generate heat. Therefore, by using the heat sink 4 to dissipate heat from the first light-emitting module, the working stability of the first light-emitting module can be effectively enhanced.

[0056] In the specific design, the mounting bracket 1 and the lens 2 are connected by a connecting cylinder 5, and the second clearance portion of the cylindrical surface of the connecting cylinder 5 also includes a heat sink 6. One end of the heat sink 6 is connected to the mounting bracket 1, and the other end is connected to the connecting cylinder 5 and located within the second clearance portion. The end of the heat sink 6 near the lens 2 is connected to the second light-emitting module 12. Similar to the function of the heat sink 4, the connecting cylinder 5 provides a suitable assembly space for the heat sink 6 to be installed, and the heat sink 6 is used to effectively dissipate heat from the second light-emitting module.

[0057] In a further embodiment, the light guide 3 is provided with a light-focusing part 33 arranged in a truncated trapezoidal shape at one end near the mounting frame 1. Each light-focusing part 33 is adapted to cover the corresponding light-emitting unit. The truncated trapezoidal design of the light-focusing part 33 can achieve a better light-focusing effect, which can make the formation of the second light path more stable and efficient.

[0058] In this embodiment, the assembly height of the heat sink 6 is lower than the assembly height of the reflector bowl 13, and a heat dissipation gap is formed between the reflector bowl 13 and the heat sink 6. The heat dissipation gap makes the overall heat dissipation effect of the second light-emitting module better, and prevents its heat from being transferred to the reflector bowl 13 on a large scale, thus avoiding increasing the heat dissipation load of the heating seat. In the specific solution, a first heat dissipation inclined surface 14 is formed at the end of the reflector bowl 13 near the lens 2, and a second heat dissipation inclined surface 62 is provided on the heat sink 6. A heat dissipation gap is formed between the first heat dissipation inclined surface 14 and the second heat dissipation inclined surface 62.

[0059] In this embodiment, the sensing module is one of a gyroscope, an accelerometer, or a magnetic sensor; it only needs to be able to realize the measurement interface for moving and turning the vehicle body. In a specific implementation, for example, a gyroscope can be mounted on the main control board of the first light-emitting module, which can provide a more suitable operating environment through the heat sink 4 and prevent temperature overload.

[0060] The advantages of this invention are:

[0061] 1. By forming a second light path during vehicle turning, and the second light path forming a sub-lighting area in the same direction as the turning, the lighting area is effectively expanded, which can greatly help users drive safely;

[0062] 2. By controlling the power of the light-emitting units in the vehicle lighting system, the sub-lighting area and the main lighting area can be kept the same. Under this design, there will be no obvious division between light and dark in the sub-lighting area and the main lighting area, forming a more integrated lighting area, which can provide more stable supplementary lighting for the driving environment.

[0063] The above-disclosed embodiments are merely a few specific examples of the present invention, but the present invention is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An adaptive steering control method for an automotive lens module, characterized in that, include: A first light path is generated based on the forward motion of the vehicle body, and the first light path forms the main illumination area; Obtain the expected steering direction of the vehicle body; In response to the turning direction, a second optical path is generated, which is merged with the first optical path to generate a sub-illumination area on the same side of the main illumination area corresponding to the turning direction; Wherein, the optical axis direction of the first optical path is taken as the standard direction, the moving direction of the vehicle body is taken as the real-time direction, and the first angle value between the moving direction and the standard direction is defined; The turning direction is calculated based on the first angle value; The first optical path and the second optical path form a second angle value, which is a multiple of the first angle value.

2. The adaptive steering control method for an automotive lens module according to claim 1, characterized in that, The sub-lighting area has the same brightness as the main lighting area.

3. The adaptive steering control method for an automotive lens module according to claim 1, characterized in that, When the vehicle body turns for a longer time than a preset time, the illumination formed in the sub-lighting area is increased.

4. An adaptive steering control system for an automotive lens module, characterized in that, The system is used to perform the method according to any one of claims 1-3; the system includes a first lighting module, a second lighting module, and a processing module; The processing module generates a first light path based on the forward movement of the vehicle body, and the first light path forms the main lighting area. The processing module obtains the expected steering direction of the vehicle body; The processing module responds to the turning direction so that the second lighting module generates a second optical path, which is merged with the first optical path to generate a sub-lighting area on the same side of the main lighting area corresponding to the turning direction. The step of obtaining the steering direction is as follows: The processing module takes the optical axis direction of the first optical path as the standard direction, the moving direction of the vehicle body as the real-time direction, and the first angle value between the moving direction and the standard direction, and then calculates the turning direction based on the first angle value. The first optical path and the second optical path form a second angle value, which is a multiple of the first angle value.

5. The adaptive steering control system for the automotive lens module according to claim 4, characterized in that, The sub-lighting area has the same brightness as the main lighting area.

6. The adaptive steering control system for the automotive lens module according to claim 4, characterized in that, When the processing module detects that the vehicle body turning time is higher than a preset time, the illumination formed in the sub-lighting area is increased.

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