Reversing auxiliary lighting device and control method

Abstract

The invention relates to the technical field of automobile parts, in particular to a reversing auxiliary lighting device and a control method. A light source, a sensor structure and a control assembly are respectively arranged on one side of the outside rear-view mirror (1); the light source and the sensor are both connected with the control assembly; the control assembly can illuminate obstacles on the two sides of a vehicle body and within a certain range behind the vehicle when the vehicle backs up in a dark environment by controlling the light source and the sensor structure, and when a driver backs up, the driver can clearly see the area illuminated by the device, so that the driving safety is improved. Therefore, the safety of the automobile without the 360-degree panoramic image during backing in the dark environment is improved; meanwhile, the light source, the sensor structure and the control assembly are all mounted on one side of the outside rear-view mirror 1; the device is compact in structure, high in practicability, low in cost and wide in application range.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and in particular to a reversing auxiliary lighting device and a control method thereof. Background Art

[0002] Currently, high-end models are equipped with 360-degree panoramic imaging function. The configuration of this new function makes driving a vehicle easier and safer, and the threshold for driving experience is much lower. However, the cost of 360-degree panoramic imaging is high, and it is rarely used in low-end models. Cars that are not equipped with 360-degree panoramic imaging function are more difficult to reverse in dim environments, because when the light is dim to a certain extent, the human eye cannot clearly see the obstacles on the side and rear of the vehicle in the exterior rearview mirror, which makes reversing very dangerous.

[0003] After searching, the applicant found that the Chinese patent document with publication number 208332134U disclosed a light guide for a car lamp on January 4, 2019, including several main bodies of different lengths and connecting parts, the cross-section of the main body is circular or elliptical, the arc-shaped main body includes a light incident surface, a light emitting surface, a reflecting surface for reflecting light to the light emitting surface and a connecting surface, the connecting part connects the main bodies of different lengths side by side into one through the connecting surface so that the light incident surfaces are on the same plane and match the shape of the car lamp, and by setting a reflecting surface for reflecting light to the light emitting surface, the connecting part connects the main bodies of different lengths side by side into one through the connecting surface so that the light incident surfaces are on the same plane; this device also cannot solve the above-mentioned technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a reversing auxiliary lighting device and a control method that can realize nighttime reversing lighting. Summary of the invention

[0005] The object of the present invention is to provide a reversing auxiliary lighting device and a control method capable of realizing nighttime reversing lighting.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reversing auxiliary lighting device, including an exterior rearview mirror; a light source, a sensor structure and a control component are respectively provided on one side of the exterior rearview mirror; the light source and the sensor are both connected to the control component.

[0007] The exterior rearview mirror is connected to an exterior rearview mirror upper shell; the exterior rearview mirror upper shell is arranged at the bottom of the exterior rearview mirror, and the exterior rearview mirror upper shell is connected to an exterior rearview mirror lower shell; the light source, the sensor structure and the control component are all arranged between the exterior rearview mirror upper shell and the exterior rearview mirror lower shell.

[0008] A fixing plate is provided in the upper shell of the exterior rearview mirror; the control component includes a driving circuit board; the driving circuit board is connected to the fixing plate; the light source and the sensor structure are both connected to the driving circuit board.

[0009] The light source includes an LED lamp; the sensor structure includes a light sensor; the LED lamp and the light sensor are both connected to the driving circuit board.

[0010] A mounting protrusion is provided on the lower shell of the exterior rearview mirror; an LED lamp mounting hole and a light sensor mounting hole are respectively provided on the mounting protrusion; the LED lamp mounting hole is arranged on one side of the light sensor mounting hole; the LED lamp is connected in the LED lamp mounting hole; and the light sensor is connected in the light sensor mounting hole.

[0011] An exterior mirror mounting rod is provided at one end of the exterior mirror upper shell; a vehicle body mounting column is provided at the other end of the exterior mirror upper shell; the exterior mirror mounting rod is connected to the exterior mirror; the vehicle body mounting column is connected to the vehicle body; an integrated power signal transmission line is provided on the vehicle body mounting column; one end of the integrated power signal transmission line is connected to the drive circuit board, and an ECU is provided at the other end of the integrated power signal transmission line.

[0012] The exterior rearview mirror is provided with an exterior rearview mirror mounting hole; the exterior rearview mirror mounting hole is arranged at the end of the exterior rearview mirror close to the exterior rearview mirror upper shell; the exterior rearview mirror mounting rod is inserted into the exterior rearview mirror mounting hole; the exterior rearview mirror includes a mirror surface; the mounting protrusion is arranged on a side of the exterior rearview mirror lower shell close to the mirror surface.

[0013] The LED lamp is a high-power LED lamp; a reflector is provided on the LED lamp.

[0014] A control method for the reverse auxiliary lighting device, the control method comprising the following steps:

[0015] 1) The vehicle is engaged in reverse gear, and the ECU sends a control signal to the driver circuit board; the driver circuit board sends a control signal to the light sensor, and the light sensor is turned on;

[0016] 2) The light sensor detects the ambient light intensity; the driver circuit board sends a control signal to the ECU; the ECU determines the light intensity and sends a control signal to the driver circuit board; the driver circuit board sends a control signal to the LED light, and the LED light turns on;

[0017] 3) When the vehicle leaves the reverse gear, the ECU sends a control signal to the driving circuit board; the driving circuit board sends control signals to the light sensor and the LED light respectively; the light sensor and the LED light are turned off.

[0018] The step 2) comprises:

[0019] 21) When the light sensor detects that the ambient light value is less than 10 l ux, the ECU determines that the light intensity is insufficient and sends a control signal to the driver circuit board; the driver circuit board sends a control signal to the LED light, and the LED light turns on;

[0020] The horizontal illumination angle of the LED lamp is 14°; the illumination length of the LED lamp is 10m; and the illumination width of the LED lamp is 2.5m.

[0021] The beneficial effects of this application are:

[0022] 1. This application is applicable to cars that are not equipped with 360° panoramic images; when the vehicle is reversing in a dim environment, the LED lights can illuminate obstacles on both sides of the vehicle body and within a certain range behind the vehicle. When the driver is reversing, he can clearly see the area illuminated by the device, thereby improving the safety of cars that are not equipped with 360° panoramic images when reversing in a dim environment.

[0023] 2. The device has a simple structure. A light sensor, a high-power LED light source, a driving circuit board and an integrated power supply signal transmission line are installed in each of the exterior rearview mirrors on both sides of the vehicle. The device is designed together with the exterior rearview mirror cavity, has a compact structure, strong practicality, low cost and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of the reverse auxiliary lighting device.

[0026] Figure 2 This is a schematic diagram of the internal structure of the upper shell of the exterior rearview mirror of the reversing auxiliary lighting device.

[0027] Figure 3 The figure is a side view of the illumination range of the auxiliary reversing lighting device.

[0028] Figure 4 The figure is a top view of the illumination range of the reversing auxiliary lighting device.

[0029] The marks in the above figure are:

[0030] The markings in the figure are:

[0031] 1. Exterior rearview mirror, 101. Rearview mirror mounting hole, 102. Mirror surface,

[0032] 2. Exterior rearview mirror upper housing,

[0033] 3. Exterior rearview mirror lower housing,

[0034] 4. Fixed plate, 401, driving circuit board,

[0035] 5. LED light, 501, light sensor,

[0036] 6. Mounting bump, 601. LED light mounting hole, 602. Light sensor mounting hole,

[0037] 7. Exterior rearview mirror mounting rod,

[0038] 8. Body mounting column,

[0039] 9. Power signal integrated transmission line. DETAILED DESCRIPTION

[0040] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0041] Figure 1 The auxiliary reversing lighting device shown comprises an exterior rearview mirror 1; a light source, a sensor structure and a control component are respectively provided on one side of the exterior rearview mirror 1; the light source and the sensor are both connected to the control component.

[0042] The control component controls the light source and the sensor structure to illuminate obstacles on both sides of the vehicle and within a certain range behind the vehicle when the vehicle is reversing in a dim environment. When the driver is reversing, he can clearly see the area illuminated by the device, thereby improving the safety of cars that are not equipped with 360° panoramic images when reversing in a dim environment; at the same time, the light source, the sensor structure and the control component are all installed on one side of the exterior rearview mirror 1; this makes the device compact in structure, highly practical, low in cost and widely applicable.

[0043] The exterior rearview mirror 1 is connected to the exterior rearview mirror upper shell 2; the exterior rearview mirror upper shell 2 is arranged at the bottom of the exterior rearview mirror 1, and the exterior rearview mirror upper shell 2 is connected to the exterior rearview mirror lower shell 3; the light source, sensor structure and control components are all arranged between the exterior rearview mirror upper shell 2 and the exterior rearview mirror lower shell 3.

[0044] The exterior rearview mirror 1 is movably connected to the exterior rearview mirror upper shell 2; the exterior rearview mirror upper shell 2 can provide an installation position for the exterior rearview mirror 1 and can provide stable support for the exterior rearview mirror 1; the exterior rearview mirror 1 can flexibly rotate on the exterior rearview mirror upper shell 2; the exterior rearview mirror upper shell 2 and the exterior rearview mirror lower shell 3 are fixedly connected; a cavity is provided between the rearview mirror upper shell 2 and the exterior rearview mirror lower shell 3; the light source, sensor structure and control components are all arranged in the cavity.

[0045] A fixing plate 4 is disposed in the exterior rearview mirror upper housing 2 ; the control assembly includes a driving circuit board 401 ; the driving circuit board 401 is connected to the fixing plate 4 ; and the light source and the sensor structure are both connected to the driving circuit board 401 .

[0046] The fixing plate 4 is arranged inside the exterior rearview mirror upper shell 2, and the fixing plate 4 and the exterior rearview mirror upper shell 2 are an integral structure; the driving circuit board 401 is fixedly connected to the fixing plate 4 and is arranged on the top of the fixing plate 4; the light source and the sensor structure are both circuit-connected to the driving circuit board 401; the driving circuit board 401 can receive environmental information detected by the sensor structure; the driving circuit board 401 can control the turning on and off of the light source.

[0047] The light source includes an LED lamp 5 ; the sensor structure includes a light sensor 501 ; the LED lamp 5 and the light sensor 501 are both connected to the driving circuit board 401 .

[0048] The light sensor 501 can be an infrared light sensor or a visible light sensor, etc.; the light sensor 501 can detect the light intensity in the environment; the light sensor 501 includes a photodiode; when light shines on the photodiode, a certain current will be generated, and the magnitude of this current depends on the intensity of the irradiated light; the amplifier amplifies the current generated by the photodiode, thereby obtaining a controllable voltage output, thereby being able to detect the light intensity in the environment; the driving circuit board 401 can receive the light intensity information detected by the light sensor 501; the driving circuit board 401 can control the switch of the LED light 5.

[0049] A mounting protrusion 6 is provided on the lower shell 3 of the exterior rearview mirror; an LED lamp mounting hole 601 and a light sensor mounting hole 602 are respectively provided on the mounting protrusion 6; the LED lamp mounting hole 601 is arranged on one side of the light sensor mounting hole 602; the LED lamp 5 is connected to the LED lamp mounting hole 601; and the light sensor 501 is connected to the light sensor mounting hole 602.

[0050] The mounting protrusion 6 is an integral structure with the lower shell 3 of the exterior rearview mirror; the LED lamp mounting hole 601 and the light sensor mounting hole 602 are both circular through holes; the LED lamp 5 and the light sensor 501 are both fixedly connected to the driving circuit board 401; the lamp head of the LED lamp 5 extends from the LED lamp mounting hole 601; the detection probe of the light sensor 501 extends from the light sensor mounting hole 602.

[0051] An exterior mirror mounting rod 7 is provided at one end of the exterior mirror upper shell 2; a vehicle body mounting column 8 is provided at the other end of the exterior mirror upper shell 2; the exterior mirror mounting rod 7 is connected to the exterior mirror 1; the vehicle body mounting column 8 is connected to the vehicle body; an integrated power signal transmission line 9 is provided on the vehicle body mounting column 8; one end of the integrated power signal transmission line 9 is connected to the driving circuit board 401, and an ECU is provided at the other end of the integrated power signal transmission line 9.

[0052] ECU (Electronic Control Unit), including microcontroller (MCU), memory (ROM, RAM), input / output interface (I / O), analog-to-digital converter (A / D) and large-scale integrated circuits such as shaping and driving; ECU calculates the driving condition of the vehicle through various sensors, so as to control multiple parameters such as engine ignition, air-fuel ratio, idling speed, exhaust gas recirculation, etc.; ECU can receive the vehicle's shift signal; ECU can receive and process the ambient light information sent by the driver circuit board 401, and at the same time, ECU can send control signals to the driver circuit board 401 through the integrated power signal transmission line 9, and can supply power to the driver circuit board 401.

[0053] An exterior rearview mirror mounting hole 101 is provided on the exterior rearview mirror 1; the exterior rearview mirror mounting hole 101 is provided at the end of the exterior rearview mirror 1 close to the exterior rearview mirror upper shell 2; the exterior rearview mirror mounting rod 7 is inserted into the exterior rearview mirror mounting hole 101; the exterior rearview mirror 1 includes a mirror surface 102; the mounting protrusion 6 is provided on one side of the exterior rearview mirror lower shell 3 close to the mirror surface 102.

[0054] The exterior rearview mirror mounting rod 7 is inserted into the exterior rearview mirror mounting hole 101, so that the exterior rearview mirror 1 can be stably connected to the exterior rearview mirror upper shell 2 and the exterior rearview mirror 1 can be flexibly rotated; the mounting protrusion 6 can guide the irradiation direction of the LED light 5 and the detection direction of the light sensor 501; the mounting protrusion 6 and the mirror surface 102 are both set in the direction of the vehicle body.

[0055] The LED lamp 5 is a high-power LED lamp; a reflector is provided on the LED lamp 5 .

[0056] The LED lamp 5 is a high-power lamp, and a reflector is installed on the LED lamp 5. The light of the LED lamp 5 can be irradiated to the sides and rear of the vehicle through the reflector, so that the brightness of the sides and rear of the vehicle reaches an illumination recognizable by the human eye, and the driver can clearly see obstacles on the sides and rear of the vehicle through the mirror 102.

[0057] A control method for a reverse auxiliary lighting device, the control method comprising the following steps:

[0058] 1) The vehicle is engaged in the reverse gear, and the ECU sends a control signal to the driver circuit board 401; the driver circuit board 401 sends a control signal to the light sensor 501, and the light sensor 501 is turned on;

[0059] 2) The light sensor 501 detects the ambient light intensity; the driver circuit board 401 sends a control signal to the ECU; the ECU determines the light intensity and sends a control signal to the driver circuit board 401; the driver circuit board 401 sends a control signal to the LED lamp 5, and the LED lamp 5 turns on;

[0060] 3) The vehicle leaves the reverse gear, and the ECU sends a control signal to the driving circuit board 401; the driving circuit board 401 sends control signals to the light sensor 501 and the LED light 5 respectively; the light sensor 501 and the LED light 5 are turned off.

[0061] The device is turned on: when the vehicle is reversing in a dim environment, the vehicle is engaged in the reverse gear, and the gear position signal is sent to the ECU; the ECU controls the driver circuit board 401 to turn on the light sensor 501; the light sensor 501 detects the ambient light intensity, and when the illuminance value is less than 10l ux, the ECU controls the driver circuit board 401 to turn on the high-power LED lamp 5 with a reflector; the light of the LED lamp 5 is irradiated to the sides and rear of the vehicle through the specially designed reflector, so that the brightness of the sides and rear of the vehicle reaches an illuminance recognizable by the human eye; the driver can clearly see the obstacles on the sides and rear of the vehicle through the mirror 102, and can achieve safe reversing.

[0062] The device is in the closed state: when the reverse is completed, the vehicle is out of the reverse gear, the gear position signal is sent to the vehicle ECU, and the vehicle ECU sends a close signal to turn off the light sensor 501 and the LED light 5 at the same time.

[0063] Step 2) includes:

[0064] 21) When the light sensor 501 detects that the ambient light value is less than 10 l ux, the ECU determines that the light intensity is insufficient and sends a control signal to the driver circuit board 401; the driver circuit board 401 sends a control signal to the LED lamp 5, and the LED lamp 5 turns on;

[0065] The horizontal irradiation angle of the LED lamp 5 is 14°; the irradiation length of the LED lamp 5 is 10 m; and the irradiation width of the LED lamp 5 is 2.5 m.

[0066] When the ambient light value is less than 10l ux, the ECU turns on the LED light 5 through the driving circuit board 401; when the ambient light value is greater than or equal to 10l ux, the LED light 5 remains off; the user can use the car remote control key to send a control signal consistent with the reverse gear signal to turn the light sensor 501 on and off, thereby controlling the LED light 5 on and off; for safety and to avoid glare that affects other road users, this device can only be used in reversing or parking conditions, and is disabled in other conditions.

[0067] When the device is turned on, the vertical illumination range of 70° can basically cover the area from the rear end of the front door to the rear of the roof, and the horizontal illumination angle is 14°, 10m away, and 2.5m wide, which can basically cover the legal visible area of ​​the exterior rearview mirror.

[0068] The specific workflow of the present invention is as follows:

[0069] 1) The vehicle is engaged in the reverse gear, and the ECU sends a control signal to the driver circuit board 401; the driver circuit board 401 sends a control signal to the light sensor 501, and the light sensor 501 is turned on;

[0070] 2) The light sensor 501 detects the ambient light intensity; the driver circuit board 401 sends a control signal to the ECU; the ECU determines the light intensity and sends a control signal to the driver circuit board 401; the driver circuit board 401 sends a control signal to the LED lamp 5, and the LED lamp 5 turns on;

[0071] 3) The vehicle leaves the reverse gear, and the ECU sends a control signal to the driving circuit board 401; the driving circuit board 401 sends control signals to the light sensor 501 and the LED light 5 respectively; the light sensor 501 and the LED light 5 are turned off.

[0072] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A reversing auxiliary lighting device, characterized in that: It comprises an exterior rearview mirror (1); a light source, a sensor structure and a control component are respectively provided on one side of the exterior rearview mirror (1); the light source and the sensor are both connected to the control component.

2. A reversing auxiliary lighting device according to claim 1, characterized in that: The exterior rearview mirror (1) is connected to an exterior rearview mirror upper shell (2); the exterior rearview mirror upper shell (2) is arranged at the bottom of the exterior rearview mirror (1), and the exterior rearview mirror upper shell (2) is connected to an exterior rearview mirror lower shell (3); the light source, the sensor structure and the control component are all arranged between the exterior rearview mirror upper shell (2) and the exterior rearview mirror lower shell (3).

3. A reverse auxiliary lighting device according to claim 2, characterized in that: A fixing plate (4) is provided in the upper housing (2) of the exterior rearview mirror; the control component comprises a driving circuit board (401); the driving circuit board (401) is connected to the fixing plate (4); and the light source and the sensor structure are both connected to the driving circuit board (401).

4. A reverse auxiliary lighting device according to claim 3, characterized in that: The light source comprises an LED lamp (5); the sensor structure comprises a light sensor (501); and both the LED lamp (5) and the light sensor (501) are connected to the driving circuit board (401).

5. A reverse auxiliary lighting device according to claim 4, characterized in that: The lower housing (3) of the exterior rearview mirror is provided with a mounting protrusion (6); the mounting protrusion (6) is provided with an LED lamp mounting hole (601) and a light sensor mounting hole (602) respectively; the LED lamp mounting hole (601) is arranged on one side of the light sensor mounting hole (602); the LED lamp (5) is connected to the LED lamp mounting hole (601); and the light sensor (501) is connected to the light sensor mounting hole (602).

6. A reversing auxiliary lighting device according to any one of claims 4 to 5, characterized in that: One end of the exterior rearview mirror upper shell (2) is provided with an exterior rearview mirror mounting rod (7); the other end of the exterior rearview mirror upper shell (2) is provided with a vehicle body mounting column (8); the exterior rearview mirror mounting rod (7) is connected to the exterior rearview mirror (1); the vehicle body mounting column (8) is connected to the vehicle body; an integrated power signal transmission line (9) is provided on the vehicle body mounting column (8); one end of the integrated power signal transmission line (9) is connected to the driving circuit board (401), and the other end of the integrated power signal transmission line (9) is provided with an ECU.

7. A reverse auxiliary lighting device according to claim 6, characterized in that: The exterior rearview mirror (1) is provided with an exterior rearview mirror mounting hole (101); the exterior rearview mirror mounting hole (101) is arranged at an end of the exterior rearview mirror (1) close to the exterior rearview mirror upper shell (2); the exterior rearview mirror mounting rod (7) is inserted into the exterior rearview mirror mounting hole (101); the exterior rearview mirror (1) comprises a mirror surface (102); and the mounting protrusion (6) is arranged on a side of the exterior rearview mirror lower shell (3) close to the mirror surface (102).

8. A reverse auxiliary lighting device according to claim 7, characterized in that: The LED lamp (5) is a high-power LED lamp; a reflector is provided on the LED lamp (5).

9. A method for controlling the reversing auxiliary lighting device according to any one of claims 1 to 8, characterized in that: The control method comprises the following steps: 1) The vehicle is engaged in the reverse gear position, and the ECU sends a control signal to the driving circuit board (401); the driving circuit board (401) sends a control signal to the light sensor (501), and the light sensor (501) is turned on; 2) The light sensor (501) detects the ambient light intensity; the driving circuit board (401) sends a control signal to the ECU; the ECU determines the light intensity and sends a control signal to the driving circuit board (401); the driving circuit board (401) sends a control signal to the LED lamp (5), and the LED lamp (5) is turned on; 3) When the vehicle is out of reverse gear, the ECU sends a control signal to the driving circuit board (401); the driving circuit board (401) sends control signals to the light sensor (501) and the LED light (5) respectively; the light sensor (501) and the LED light (5) are turned off.

10. The control method according to claim 9, characterized in that: The step 2) comprises: 21) When the light sensor (501) detects that the ambient light value is less than 10 lux, the ECU determines that the light intensity is insufficient and sends a control signal to the driving circuit board (401); the driving circuit board (401) sends a control signal to the LED lamp (5), and the LED lamp (5) turns on; The horizontal irradiation angle of the LED lamp (5) is 14°; the irradiation length of the LED lamp (5) is 10 m; The illumination width of the LED lamp (5) is 2.5 m.

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