An electronic exterior rearview mirror system for commercial vehicles

Abstract

The present invention discloses an electronic exterior rearview mirror system for commercial vehicles, comprising a host, the host being installed inside the vehicle, and comprising a controller and an image processing device; a plurality of electronic rearview mirror assemblies, the electronic rearview mirror assemblies being installed on the left and right sides of the A-pillar of the vehicle's cab, the electronic rearview mirror assemblies being connected to the host; a memory, the memory being connected to the output end of the image processing device, and being used to store image information collected for standby use; wherein the electronic rearview mirror assembly comprises a lens module, a display device connected to the lens module, and a CMS controller. The electronic exterior rearview mirror system for commercial vehicles provided by the present invention has an electronic rearview mirror assembly that is more flexible, solves the difficulty of the traditional rearview mirror having a small visual range, replaces the traditional glass rearview mirror with a lens module of a wide-angle camera, further reduces the vehicle's wind resistance, expands the field of view of the vehicle's image, and also has the function of automatically adjusting the display field of view range.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile driving assistance systems, and in particular, relates to an electronic exterior rearview mirror system for a commercial vehicle. Background Art

[0002] Early parking assistance systems usually use radar or single-lens modules, and use sound alarms or display video images from the rear lens module of the vehicle to help vehicle drivers judge the distance between the vehicle and obstacles at blind corners. However, the distance display is not intuitive when using radar alarms; and there are still problems with blind corners and inaccurate distance judgment when using rear lens modules, so panoramic parking technology has gradually emerged. The exterior rearview mirrors of existing trucks are composed of Class II and Class IV. This type of rearview mirror system has many defects, such as fixed installation position, limited observation area, blind spots, poor night vision, and high fuel consumption.

[0003] Due to the high position of the driver's seat, the long-distance vision of commercial vehicles is considered to be very ideal, but there are still many blind spots around the vehicle from the driver's perspective. The invisible areas around and behind the vehicle can only be seen through the mirrors. According to the current GB 15084-2013 "Performance and Installation Requirements for Indirect Vision Devices for Motor Vehicles" in my country, N2 vehicles weighing more than 7.5 tons and N3 vehicles need to be equipped with at least six mirrors. These mirrors include two main rearview mirrors (Class Ⅱ), two wide-angle rearview mirrors (Class Ⅳ), and a blind spot mirror (Class Ⅴ) and a front mirror (Class Ⅵ) on the passenger side. Figure 1 The mirrors (passenger side) that are mandatory for commercial vehicles are shown. The diversity of mirrors and the different fields of view make it more difficult for the driver to observe the vehicle's surroundings. The driver must monitor the road ahead and the six mandatory mirrors at the same time. In order to correctly obtain the outside view of the vehicle, the driver should know which mirror to look at and when, which will play a very important role in driving safety and the protection of people outside the vehicle. Summary of the invention

[0004] In order to overcome the defects in the prior art, the present invention provides an electronic exterior rearview mirror system for commercial vehicles, which solves the problem of blind spots in the field of vision, reduces the difficulty of the driver looking at 6 mirrors at the same time, and solves the problem of the small viewing angle of traditional mirrors, and completely replaces traditional glass rearview mirrors with electronic cameras.

[0005] The present invention discloses an electronic exterior rearview mirror system for commercial vehicles, comprising: a host, which is installed inside the vehicle; a plurality of electronic rearview mirror assemblies, which are installed on the left and right sides of the A-pillars in the cab of the vehicle, and are connected to the host; wherein the electronic rearview mirror assembly comprises a lens module, a display device connected to the lens module, and a CMS controller, wherein an image processing device is arranged in the CMS controller; and a memory, which is connected to the output end of the image processing device and is used for storing image information collected for standby use.

[0006] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, the plurality of electronic rearview mirror assemblies are electrically connected to the host via CAN respectively.

[0007] Furthermore, the above-mentioned commercial vehicle electronic exterior rearview mirror system includes a left electronic rearview mirror assembly arranged on the left A-pillar of the cab, a right electronic rearview mirror assembly arranged on the right A-pillar of the cab, and a right blind spot electronic rearview mirror assembly arranged above the right electronic rearview mirror assembly.

[0008] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, the lens module includes a light sensor and a wide-angle camera electrically connected to the light sensor, the wide-angle camera is arranged between the front cover and the middle cover, and the light sensor is arranged between the middle cover and the rear cover.

[0009] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, the angle of the wide-angle camera corresponding to the left electronic rearview mirror assembly and the right electronic rearview mirror assembly is 140°.

[0010] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, the angle of the wide-angle camera corresponding to the right blind spot electronic rearview mirror assembly is 190°.

[0011] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, a heater is provided on the wide-angle camera.

[0012] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, a temperature sensing device and a heating power line are provided in the lens module, and the temperature sensing device is electrically connected to the CMS controller.

[0013] Furthermore, in the above-mentioned commercial vehicle electronic exterior rearview mirror system, the host is connected to the vehicle computer via a CAN BUS.

[0014] Furthermore, the above-mentioned commercial vehicle electronic exterior rearview mirror system also includes an alarm device, and the alarm device is electrically connected to the motor.

[0015] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0016] 1. The electronic exterior rearview mirror system for commercial vehicles of the present invention has a wide-angle camera of multiple electronic rearview mirror assemblies, which increases the field of view of the image, making it easier for the driver to identify, thereby increasing the safety during driving;

[0017] 2. The commercial vehicle electronic exterior rearview mirror system of the present invention is combined with the vehicle's own radar to identify people entering the blind spot, prevent system misjudgment, and provide a secondary guarantee for the safety of the system.

[0018] 3. The commercial vehicle electronic exterior rearview mirror system of the present invention can place the wide-angle lens and the optical sensor within the protection range of different spaces, thereby increasing the stability of the commercial vehicle electronic exterior rearview mirror system during use;

[0019] 4. The commercial vehicle electronic exterior rearview mirror system of the present invention can still clearly obtain night images when the illumination is very low at night, thereby ensuring clarity when working at night;

[0020] 5. The commercial vehicle electronic exterior rearview mirror system of the present invention can remove ice or fog in the electronic rearview mirror, so that the commercial vehicle electronic exterior rearview mirror system can work in a relatively low temperature environment such as rainy and snowy days, thereby increasing the adaptability of the commercial vehicle electronic exterior rearview mirror system to rainy and snowy days;

[0021] 6. The commercial vehicle electronic exterior rearview mirror system of the present invention is equipped with an alarm device, which can suppress accidents in the bud and reduce the possibility of accidents.

[0022] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a structural schematic diagram of a lens module in an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the connection relationship of the electronic exterior rearview mirror system for a commercial vehicle in an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the connection relationship of the electronic rearview mirror assembly in an embodiment of the present invention.

[0027] The figure markings of the above drawings are: 1-host; 2-electronic rearview mirror assembly; 21-lens module; 211-light sensor; 212-wide-angle camera; 213-front cover; 214-middle cover; 215-rear cover; 216-gasket; 217-heating power cord; 218-cable; 22-display device; 23-CMS controller; 24-left electronic rearview mirror assembly; 25-right electronic rearview mirror assembly; 26-right blind electronic rearview mirror assembly; 3-memory. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1-3 As shown, this embodiment provides a commercial vehicle electronic exterior rearview mirror system, including:

[0032] A host 1, which is installed inside the vehicle;

[0033] A plurality of electronic rearview mirror assemblies 2, the number of which can be 3, the electronic rearview mirror assemblies 2 are installed on the left and right sides of the A-pillar of the vehicle's cab, so that the three electronic rearview mirror assemblies 2 respectively acquire images on both sides of the vehicle, thereby expanding the image acquisition range of the electronic rearview mirror assemblies 2, and the electronic rearview mirror assemblies 2 are connected to the host 1; wherein the electronic rearview mirror assembly 2 comprises a lens module 21, a display device 22 connected to the lens module 21, and a CMS controller 23, wherein the CMS controller 23 is provided with an image processing device (not shown in the figure); the lens module 21 is electrically connected to the display switch 22 via LVDS, and the lens The module 21 is responsible for collecting images and then transmitting the images to the CMS controller 23. The sensor code stream signal is transmitted to the host 1 through the TX signal. The host performs decoding operations through the RX signal and transmits the image to the display device through the TX of the host SOC for display. The electronic rearview mirror component 2 can change the camera parameters and adjust the aperture. It can also rely on the image processing device to process the image, process the collected image into a digital signal and transmit it to the CMS controller 23. Relying on high dynamic range imaging technology, it actively adjusts the brightness, and obtains a clear field of view under insufficient external light conditions, so that the display device 22 can present a suitable picture.

[0034] The display device 22 may include an LED display screen. The LED display screen is used to display the image captured by the lens module. Since the LED display screen has the advantage of high luminous intensity, the display device 22 can still maintain a high definition of the image under strong light. In addition, since the LED display screen has the advantages of long service life and energy saving, the durability of the display device can also be increased.

[0035] The memory 3 is connected to the output end of the image processing device and is used to store the collected image information for backup; the memory 3 can be eMMS or SD, and the three electronic rearview mirror assemblies 2 can perform image recording function and store the images on eMMS or SD. When a traffic accident occurs, it can be used as evidence reference to determine the responsibility.

[0036] By means of the above structure, the three electronic rearview mirror components 2 are independently connected to the host 1 respectively, the lens module 21 is responsible for collecting images, and then transmitting the images to the CMS controller 23, and the images are displayed on the display device 22 after being processed. The images in the current electronic rearview mirror component 2 can be stored for backup through the memory, and can be read from the memory when image recording is needed later, thereby realizing an electronic exterior rearview mirror system for commercial vehicles. The electronic rearview mirror component is more flexible, which solves the difficulty of the small vision of traditional rearview mirrors. The lens module of the wide-angle camera replaces the traditional glass rearview mirror, further reduces the vehicle wind resistance, expands the field of view of the vehicle image, and also has the function of automatically adjusting the display field of view, automatically widening the field of view when turning, high speed, and reversing; ice or fog in the electronic rearview mirror can be removed, so that the vehicle electronic rearview system can work in low temperature environments such as rainy and snowy days, thereby increasing the adaptability of the vehicle electronic rearview system to rainy and snowy days.

[0037] Specifically, in this embodiment, the plurality of electronic rearview mirror assemblies are electrically connected to the host via CAN, and the CMS controllers corresponding to the plurality of electronic rearview mirror assemblies 2 are electrically connected to the host 1 via CAN, and the three electronic rearview mirror assemblies 2 work independently, with high reliability.

[0038] Specifically, in this embodiment, it includes a left electronic rearview mirror assembly arranged on the left A-pillar of the cab, a right electronic rearview mirror assembly arranged on the right A-pillar of the cab, and a right blind electronic rearview mirror assembly arranged above the right electronic rearview mirror assembly. The left electronic rearview mirror assembly and the right electronic rearview mirror assembly can be two 15-inch A-pillar electronic rearview mirror display screens, and the right blind electronic rearview mirror assembly can be a 10.1-inch blind electronic rearview mirror display screen, a hyperbolic controller (integrated in the electronic rearview mirror display screen), three digital high-definition, wide viewing angle, anti-glare, wide dynamic, low illumination, high light suppression, multi-layer coating cameras and related mounting bracket accessories. The left electronic rearview mirror assembly and the right electronic rearview mirror assembly can replace the traditional exterior rearview mirrors of type II / IV, and the right blind electronic rearview mirror assembly can replace the traditional exterior rearview mirrors of type V / VI; among them, type II / IV is divided into ordinary pictures and telephoto pictures through a lens module through a dedicated algorithm, so that the effect of viewing two mirrors on one screen can be achieved. The display pictures of type II / IV are respectively captured from the pictures of the above-mentioned cameras. The type II mirror will use 75% of the photosensitive area of ​​the upper half of the Sensors to display the main picture, and the type IV mirror will use 90% of the photosensitive area of ​​the lower half of the Sensors to display the wide-angle part. In this way, the regulatory requirements of type II are mainly used to observe the situation on both sides of the vehicle, and type IV can have a wider viewing angle, which is mainly used to make up for the lack of viewing angle of the main rearview mirror. The area of ​​the electronic rearview mirror assembly 2 is reduced by 2 / 3 compared with the original 4 ear-shaped traditional rearview mirrors. The rearview lens is replaced by three lens modules, which further reduces the wind resistance of the vehicle and optimizes the aerodynamics better, which has positive significance for fuel consumption and wind noise.

[0039] Specifically, in this embodiment, the lens module 21 includes a light sensor 211 and a wide-angle camera 212 electrically connected to the light sensor 211. The wide-angle camera 212 is arranged between the front cover 213 and the middle cover 214, and the light sensor 211 is arranged between the middle cover 214 and the rear cover 215. The light sensor 211 can adopt Sony's low-light light sensor, so that when the light illumination is very low at night, the commercial vehicle electronic exterior rearview system can still clearly obtain night images, thereby ensuring clarity when working at night. Compared with optical lenses, the wide-angle camera 212 can obtain images, which can make the volume of the entire electronic rearview mirror assembly smaller, thereby reducing the wind resistance of the vehicle. Due to its large viewing angle, the wide-angle camera 212 can obtain a larger field of view.

[0040] The wide-angle camera 212 may be arranged between the front cover 213 and the middle cover 214. The front cover 213 may be provided with a through opening, and the wide-angle camera 212 may be arranged corresponding to the opening, so that the wide-angle camera 212 may obtain an image outside the front cover 213. A waterproof gasket 216 may be arranged between the wide-angle camera 212 and the front cover 213 to reinforce and stabilize the wide-angle camera 212. The optical sensor 211 may be arranged between the middle cover 214 and the rear cover 215, so that the wide-angle camera 212 and the optical sensor 211 are separated by the middle cover 214, which can prevent the wide-angle camera 212 and the optical sensor 211 from interfering during use or assembly. Therefore, the wide-angle camera 212 and the optical sensor 211 can be placed in the protection range of different spaces, which increases the stability of the commercial vehicle electronic exterior rearview mirror system during use. The middle cover 214 may be provided with a through hole for connecting the wide-angle camera 212 and the optical sensor 211, so that the wide-angle camera 212 and the optical sensor 211 can be connected to each other. Waterproof gaskets 216 may be provided between the front cover 213 and the middle cover 214 and between the middle cover 214 and the back cover 215, respectively, to stabilize and reinforce the front cover 213 and the middle cover 214, and between the middle cover 214 and the back cover 215. The waterproof gaskets 216 ensure that the lens module 21 can work normally in a harsh environment. The lens module 21 also includes a cable 218 connected to the display device 22.

[0041] Specifically, in this embodiment, after repeated tests by the inventor, the angle of the wide-angle camera corresponding to the left electronic rearview mirror assembly and the right electronic rearview mirror assembly is 140°, and the angle of the wide-angle camera corresponding to the right blind electronic rearview mirror assembly is 190°, so that the wide-angle camera can obtain a larger field of view, so that the image obtained by the electronic rearview mirror assembly has a smaller field of view blind area, increasing the field of view obtained by the entire commercial vehicle electronic rearview mirror system. The driver can obtain more information outside the vehicle during driving, thereby increasing the safety of the vehicle during driving.

[0042] Specifically, in this embodiment, a heater (not shown in the figure) is provided on the wide-angle camera.

[0043] Specifically, in this embodiment, a temperature sensing device and a heating power line 217 are provided in the lens module, and the temperature sensing device is electrically connected to the CMS controller. The temperature sensing device can be used to sense the temperature of the electronic rearview mirror assembly 2, so that the temperature signal sensed by the electronic rearview mirror assembly 2 can be transmitted to the heater, and the temperature of the heater can be controlled. When the temperature sensing device senses that the temperature of the electronic rearview mirror assembly 2 is low, the electronic rearview mirror assembly 2 may freeze or fog, affecting image collection. The temperature sensing device controls the heater to heat up, and enables the heater to heat the entire electronic rearview mirror assembly 2, so that the ice or fog in the electronic rearview mirror assembly 2 can be removed, so that the commercial vehicle electronic exterior rearview mirror system can work in a low temperature environment such as rainy and snowy days, increasing the adaptability of the commercial vehicle electronic exterior rearview mirror system to rainy and snowy days. The heater can be an electric heater. Of course, in other optional embodiments, the material of the heater can be adjusted according to actual needs.

[0044] Specifically, in this embodiment, the host is connected to the vehicle computer via CAN BUS.

[0045] Specifically, in this embodiment, an alarm device (not shown) is also included, and the alarm device is electrically connected to the motor. The alarm device can be provided with an audio output structure, and can inform the driver of the warning mark on the display device through sound, so that the driver can handle the abnormality in time, especially when starting the car, so as to suppress the accident in the bud and reduce the possibility of the accident.

[0046] Specific embodiments are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A commercial vehicle electronic exterior rearview mirror system, characterized in that: include: A host computer installed inside the vehicle; A plurality of electronic rearview mirror assemblies, wherein the electronic rearview mirror assemblies are installed on the left and right sides of the A-pillar of the cab of the vehicle, and the electronic rearview mirror assemblies are connected to the host; including a left electronic rearview mirror assembly arranged on the left A-pillar of the cab, a right electronic rearview mirror assembly arranged on the right A-pillar of the cab, and a right blind electronic rearview mirror assembly arranged above the right electronic rearview mirror assembly, wherein the left electronic rearview mirror assembly and the right electronic rearview mirror assembly are two 15-inch A-pillar electronic rearview mirror display screens, and the right blind electronic rearview mirror assembly is a 10.1-inch blind electronic rearview mirror display screen; The electronic rearview mirror assembly includes a lens module, a display device connected to the lens module and a CMS controller, the CMS controller is provided with an image processing device, the lens module includes a light sensor, a wide-angle camera electrically connected to the light sensor, the wide-angle camera is arranged between the front cover and the middle cover, the front cover is provided with a through opening, the wide-angle camera is arranged corresponding to the opening, so that the wide-angle camera can obtain an image outside the front cover; a waterproof gasket is arranged between the wide-angle camera and the front cover to reinforce and stabilize the wide-angle camera; the light sensor is arranged between the middle cover and the rear cover, so that the wide-angle camera and the light sensor are separated by the middle cover to prevent The wide-angle camera and the optical sensor interfere with each other during use or assembly, so that the wide-angle camera and the optical sensor are placed in the protection range of different spaces. The middle cover is provided with a through hole for connecting the wide-angle camera and the optical sensor, so that the wide-angle camera and the optical sensor can be connected to each other. Waterproof gaskets are respectively provided between the front cover and the middle cover and between the middle cover and the back cover to stabilize and reinforce the front cover and the middle cover as well as the middle cover and the back cover. The lens module also includes a cable connected to the display device. The angle of the wide-angle camera corresponding to the left electronic rearview mirror assembly and the right electronic rearview mirror assembly is 140°, and the angle of the wide-angle camera corresponding to the right blind electronic rearview mirror assembly is 190°. A memory is connected to the output end of the image processing device and is used to store the collected image information for later use.

2. The commercial vehicle electronic exterior rearview mirror system according to claim 1, characterized in that: The plurality of electronic rearview mirror assemblies are electrically connected to the host via CAN respectively.

3. The commercial vehicle electronic exterior rearview mirror system according to claim 1, characterized in that: The wide-angle camera is provided with a heater.

4. The commercial vehicle electronic exterior rearview mirror system according to claim 1, characterized in that: A temperature sensing device and a heating power line are provided in the lens module, and the temperature sensing device is electrically connected to the CMS controller.

5. The commercial vehicle electronic exterior rearview mirror system according to claim 1, characterized in that: The host is connected to the vehicle computer via CANBUS.

6. The commercial vehicle electronic exterior rearview mirror system according to claim 1, characterized in that: It also includes an alarm device, which is electrically connected to the motor.

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