Projection pedal automobile tail door opening and closing sensor and automobile

Abstract

The embodiment of the utility model discloses a projection pedal automobile tail door opening and closing sensor and a vehicle, the projection pedal automobile tail door opening and closing sensor comprises a projection module, a laser module, a sensing module and a control module, the projection module is used for projecting light spots, the laser module is used for projecting laser spots, and the sensing module is used for sensing the light spots; the sensing module is used for sensing a trigger signal in a projection area of the projection module or the laser module. According to the embodiment, the laser module is additionally arranged on the automobile tail door opening and closing sensor, the automobile tail door opening and closing sensor can work under strong ambient light, a laser spot is projected on the ground to serve as indication of the pedal position, when the ambient light is dark, light spots of an original projection module are obvious, the laser module can stop working, and projection of the projection module indicates the pedal position. According to the embodiment of the invention, the problem that the projection light spot of the original automobile tail door opening and closing sensor is not clear or invisible under strong light is solved by adopting lower cost, so that a user can accurately find the pedal position under the strong light.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a projection foot-operated automobile tailgate opening and closing sensor and a vehicle. Background Art

[0002] With the application of automotive intelligent technology and the development of industrial intelligence, the intelligence, comfort and convenience of automobiles are becoming higher and higher. For example, the traditional opening and closing methods of the tailgate of a car include key button opening, tailgate outer button opening and other press-type opening and closing methods. These methods may be inconvenient in certain specific scenarios, such as when your hands are full of things and you cannot touch the tailgate switch. However, the problem can be solved by stepping on the tailgate opening and closing sensor, which allows users to open the trunk without using their hands.

[0003] The foot-operated car tailgate opening and closing sensor is an intelligent tailgate trunk sensing switch product. It has multiple sensing methods, such as ultrasonic sensors, infrared sensors, capacitive sensors, millimeter-wave radar sensors and lidar sensors.

[0004] Taking capacitive sensors as an example, current capacitive sensors have low power consumption. When installed in a vehicle, they are connected to normal power and are always in working state. Especially for aftermarket products, even after the car is locked, the capacitive kick sensor is still in working state. When a kick signal is detected, the relevant controller (such as the tailgate controller, the body controller, the PEPS controller, etc.) will be notified. The relevant controller (usually the PEPS controller) will detect whether the car key is around the vehicle. If the key is detected, the tailgate will be opened. If the car key is not detected, the kick signal will be ignored. Because the capacitive sensor has no target indication, the user does not know the position of the kick, resulting in low usage. At present, by adding a projection device, a light spot is projected on the ground as an indication to prompt the user to kick or step on the position, which can greatly enhance the experience. In particular, the sensor based on LiDAR can improve the accuracy of opening the door with foot and reduce the false trigger rate (there is no foot action but the sensor detects a change in the distance and thinks there is a foot action) due to its precise ranging performance. With the projection light spot, a better experience can be achieved.

[0005] After the current kick or step sensor (hereinafter collectively referred to as kick sensors) is added with a projection device (hereinafter collectively referred to as light-sensing kick sensors), it is necessary to consider that the projection spot can also be seen under strong sunlight. At this time, the luminous flux requirements for the light source (usually LED) are relatively high, and the illumination on the ground needs to be above 20klux to be vaguely visible. If a higher-power LED or laser is selected as the light source, the cost is higher and the heat generation is large, which is a challenge for the heat resistance of the lens and the heat dissipation of the whole machine, which will increase the cost. Utility Model Content

[0006] To solve one of the above technical deficiencies, an embodiment of the present disclosure provides a projection foot-operated vehicle tailgate opening and closing sensor and a vehicle.

[0007] According to the first aspect of the present application, a projection foot-operated vehicle tailgate opening and closing sensor is provided, including:

[0008] A projection module for projecting a light spot;

[0009] A laser module for projecting a laser light spot;

[0010] A sensing module for sensing a trigger signal within the projection area of the projection module or the laser module;

[0011] A control module electrically connected to the projection module, the laser module, and the sensing module respectively.

[0012] Optionally, at least part of the sensing area of the sensing module is located within the projection area of the projection module;

[0013] The sensing area of the sensing module covers the projection area of the laser module.

[0014] Optionally, the sensing end of the sensing module, the emitting end of the laser module, and the projection end of the projection module are oriented in the same direction.

[0015] Optionally, the sensing module is selected from any one of a capacitive sensor, a millimeter-wave radar sensor, a lidar sensor, and an ultrasonic radar sensor.

[0016] Optionally, the sensing module is a lidar sensor, and the control module is electrically connected to the lidar sensor for controlling the laser module or the projection module to turn on according to the background light intensity information sensed by the lidar sensor.

[0017] Optionally, the projection foot-operated vehicle tailgate opening and closing sensor includes an ambient light sensor electrically connected to the control module.

[0018] Optionally, the projection module, the laser module, the sensing module, and the control module are arranged on the same carrier;

[0019] The ambient light sensor is arranged on the carrier, or the ambient light sensor is an in-vehicle ambient light sensor.

[0020] Optionally, the laser module is a semiconductor dot laser.

[0021] According to the second aspect of the present application, a vehicle is provided, including:

[0022] A vehicle body;

[0023] The above-mentioned projection foot-operated vehicle tailgate opening and closing sensor is arranged on the vehicle body.

[0024] Optionally, the projection foot-operated vehicle tailgate opening and closing sensor has a connector, and the connector is electrically connected to the control module;

[0025] The connector is connected to the circuit on the vehicle body.

[0026] By adopting the above technical solutions, the present application has the following beneficial effects:

[0027] In the embodiment of the present application, by adding a laser module to the vehicle tailgate opening and closing sensor, it can work under strong ambient light, project a laser light spot on the ground as an indication of the foot-operated position. When the ambient light is dim, the original projection module spot is obvious, and the laser module can stop working, and the projection module projects to indicate the foot-operated position. The embodiment of the present application solves the problem that the projection spot of the original vehicle tailgate opening and closing sensor is unclear or invisible under strong light at a low cost, so that the user can accurately find the foot-operated position even under strong light.

[0028] Next, through the drawings and embodiments, the technical solutions of the present disclosure will be further described in detail. Description of the Drawings

[0029] The drawings forming a part of the specification depict embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0030] Referring to the drawings, according to the following detailed description, the present disclosure can be more clearly understood, wherein:

[0031] Figure 1 Shows the schematic diagram of the projection foot-operated vehicle tailgate opening and closing sensor provided by the embodiment of the present application;

[0032] Figure 2 Shows the exploded view of a projection foot-operated vehicle tailgate opening and closing sensor provided by the embodiment of the present application;

[0033] Figure 3 Shows the internal structure schematic diagram of a projection foot-operated vehicle tailgate opening and closing sensor provided by the embodiment of the present application.

[0034] In the figure, 1. Projection module; 2. Laser module; 3. Sensing module; 4. Control module; 5. Carrier.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0037] Refer to Figures 1 to 3 As shown, an embodiment of the present application provides a projection foot-operated vehicle tailgate opening and closing sensor, including: a projection module 1, a laser module 2, a sensing module 3, and a control module 4. The projection module 1 is used to project a light spot, and the laser module 2 is used to project a laser. The laser projects on the ground to form a light point or a small light circle, and the diameter of the light point or the small light circle is smaller than the diameter of the light spot projected by the projection module 1. The sensing module 3 is used to sense a trigger signal within the projection area of the projection module 1 or the laser module 2, and the control module 4 is electrically connected to the projection module 1, the laser module 2, and the sensing module 3 respectively.

[0038] The control module 4 is used to control the working states of the projection module 1, the sensing module 3, and the laser module 2, receive the data of the sensing module 3, and determine whether there is a kicking or stepping action. If a kicking or stepping action is detected, an opening request signal is sent to the whole vehicle through a connector and a wiring harness.

[0039] By adding a laser module 2 to the vehicle tailgate opening and closing sensor in the embodiment of the present application, it can work under strong ambient light, project a laser light point on the ground as an indication of the stepping position. When the ambient light is relatively dim, the light spot of the original projection module 1 is more obvious, and the control module 4 can control the laser module 2 to stop working, and only the projection module 1 projects to indicate the stepping position. The embodiment of the present application does not need to set a high-power projection module 1, and can solve the problem that the projection light spot of the original vehicle tailgate opening and closing sensor is unclear or invisible under strong light at a relatively low cost, so that the user can also find the accurate stepping position under strong light.

[0040] In some possible implementation solutions, at least part of the sensing area of the sensing module 3 is located within the projection area of the projection module 1. The projection area of the projection module 1 can be understood as the area through which the light emitted by the projection module 1 passes. The sensing area of the sensing module 3 can be almost entirely located within the projection area, or can have an overlapping area and a non-overlapping area with the projection area. When there is a stepping / kicking action within the projection area, it will be sensed by the sensing module 3 in time, and a signal will be sent to the controller, and the controller will send an opening signal to the vehicle.

[0041] The sensing area of the sensing module 3 covers the projection area of the laser module 2. The projection area of the laser module 2 can be understood as the area through which the laser emitted by the laser module 2 passes. The diameter of the projection area of the laser module 2 is small, and the sensing area of the sensing module 3 can be larger than and include the projection area of the laser module 2. When the projection area of the laser module 2 is blocked, the sensing module 3 can sense it in time and send a signal to the controller, and the controller sends an opening signal to the vehicle.

[0042] In some possible implementation manners, the sensing end of the sensing module 3, the emitting end of the laser module 2, and the projection end of the projection module 1 are oriented in the same direction, that is, the laser emission direction of the laser module 2, the projection direction of the projection module 1, and the sensing direction of the sensing module 3 are parallel. The sensing module can sense the trigger signal (i.e., the foot stepping or kicking action) in the projection area of the projection module 1 and the projection area of the laser module 2 in a timely and effective manner.

[0043] The projection module 1 can be composed of an LED, its driving circuit board, and a projection lens, and can project a patterned light spot on the ground to indicate the foot stepping position. The laser module 2 can be placed side by side and parallel to the projection module 1, or can also project a bright laser light spot on the ground as the indication light spot for foot stepping. The sensing module 3 is used to sense the foot kicking or stepping action.

[0044] The sensing module 3 can be a module with various different sensing principles, and the sensing module 3 can be selected from any one of a capacitive sensor, a millimeter-wave radar sensor, a lidar sensor, and an ultrasonic radar sensor.

[0045] When the sensing module 3 is a lidar sensor, the control module 4 is electrically connected to the lidar sensor and is used to control the laser module 2 or the projection module 1 to turn on according to the background light intensity information sensed by the lidar sensor. When the sensing module 3 adopts a lidar sensor, the orientation of its transceiver lens is parallel to the projection direction of the projection module 1 and the laser beam of the laser module 2. The emission light spot of the lidar sensor can be located within the light spot of the projection module 1, and the projection light spot of the laser module 2 can be located within the emission light spot of the lidar sensor, so that when the user steps on the projection light spot or the laser light spot, the emission light spot of the lidar is also stepped on, so that the lidar sensor can recognize the distance change of the foot stepping. At the same time, by adopting a lidar sensor for the sensing module 3 of the present application, an additional ambient light sensor does not need to be provided, and the background light intensity information output by the lidar sensor can be used as an indication signal of the ambient light intensity and used as a trigger signal for the control module 4 to control the opening and closing of the laser module 2.

[0046] For example, when the projection foot-operated vehicle tailgate opening and closing sensor operates under strong ambient light and the background light intensity information output by the lidar sensor is higher than the set value, the control module 4 controls the laser module 2 to project a bright laser spot on the ground as an indication of the foot position. When the ambient light is dim, the background light intensity information output by the lidar sensor is lower than the set value, and the projection spot of the projection module 1 is more obvious. The control module 4 can control the laser module 2 to stop working and control the projection module 1 to start working. The foot position is indicated by the projection spot of the projection module 1. At this time, the user can see a larger spot, which has a sense of ceremony.

[0047] When the sensing module 3 does not adopt a lidar sensor, for example, when the sensing module 3 adopts a millimeter-wave radar, an ultrasonic radar or a capacitive sensor, the projection foot-operated vehicle tailgate opening and closing sensor may further include an ambient light sensor, and the ambient light sensor is electrically connected to the control module. The ambient light sensor can obtain ambient light intensity information and be used as a trigger signal for turning on the laser module 2.

[0048] In some possible implementation manners, the projection module 1, the laser module 2, the sensing module 3 and the control module 4 are arranged on the same carrier 5, and the ambient light sensor is arranged on the carrier 5, that is, the projection foot-operated vehicle tailgate opening and closing sensor may include an independent ambient light sensor. To save costs, the ambient light sensor may also be an ambient light sensor owned by the vehicle, that is, the projection foot-operated vehicle tailgate opening and closing sensor is electrically connected to the ambient light sensor owned by the vehicle.

[0049] In some possible implementation manners, the laser module 2 is a semiconductor dot laser. The semiconductor dot laser has the characteristics of small volume, light weight, good reliability, long service life and low power consumption. In addition, the semiconductor dot laser adopts a low-voltage constant-current power supply method, with low power supply failure rate, safe use and low maintenance cost.

[0050] The embodiment of the present application also provides a vehicle, including: a vehicle body and the above-mentioned projection foot-operated vehicle tailgate opening and closing sensor, and the projection foot-operated vehicle tailgate opening and closing sensor is arranged on the vehicle body. Specifically, the vehicle body has a rear bumper, and the projection foot-operated vehicle tailgate opening and closing sensor can be installed on the rear bumper and connected to the whole vehicle through a wire harness to obtain power and communicate with the vehicle body.

[0051] In some possible implementation manners, the projection foot-operated vehicle tailgate opening and closing sensor has a connector, the connector is electrically connected to the control module 4, and the connector is connected to the circuit on the vehicle body.

[0052] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0053] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0054] The above description has been given for purposes of illustration and description. Additionally, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub - combinations thereof.

Claims

1. A projection foot-operated car tailgate opening and closing sensor, characterized in that: include: A projection module, wherein the projection module is used to project a light spot; A laser module, wherein the laser module is used to project laser light; A sensor module, the sensor module is used to sense a trigger signal of a projection area of ​​the projection module or the laser module; A control module is electrically connected to the projection module, the laser module and the sensor module respectively.

2. The projection pedal car tailgate opening and closing sensor according to claim 1 is characterized in that: The sensing area of ​​the sensor module is at least partially located within the projection area of ​​the projection module; The sensing area of ​​the sensor module covers the projection area of ​​the laser module.

3. The projection pedal car tailgate opening and closing sensor according to claim 1 is characterized in that: The sensing end of the sensor module, the emitting end of the laser module and the projection end of the projection module are in the same direction.

4. The projection pedal car tailgate opening and closing sensor according to claim 1, characterized in that: The sensing module is selected from at least one of a capacitive sensor, a millimeter wave radar sensor, a laser radar sensor and an ultrasonic radar sensor.

5. The projection pedal car tailgate opening and closing sensor according to claim 1, characterized in that: The sensing module is a laser radar sensor, The control module is electrically connected to the laser radar sensor, and controls the laser module or the projection module to turn on according to the background light intensity information sensed by the laser radar sensor.

6. The projection pedal car tailgate opening and closing sensor according to claim 1, characterized in that: An ambient light sensor is included, and the ambient light sensor is electrically connected to the control module.

7. The projection pedal car tailgate opening and closing sensor according to claim 6, characterized in that: The projection module, the laser module, the sensor module and the control module are arranged on the same carrier; The ambient light sensor is arranged on the carrier, or the ambient light sensor is an ambient light sensor arranged on a vehicle.

8. The projection pedal car tailgate opening and closing sensor according to any one of claims 1 to 7, characterized in that: The laser module is a semiconductor point laser.

9. A vehicle, characterized in that: include: Vehicle body; The projection pedal automobile tailgate opening and closing sensor as described in any one of claims 1-8, wherein the projection pedal automobile tailgate opening and closing sensor is arranged on the vehicle body.

10. The vehicle according to claim 9, characterized in that The projection pedal automobile tailgate opening and closing sensor has a connector, and the connector is electrically connected to the control module; The connector is connected to a circuit on the vehicle body.

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