A radar monitoring device, a collision protection system and a control method

Abstract

This invention discloses a radar monitoring device, a collision protection system, and a control method. The radar monitoring device includes a radar, a slide rail assembly, and a bracket assembly. The radar is fixed to the bracket assembly, which is configured to slide on the slide rail assembly. The bracket assembly can move the radar away from the front crossbeam during a collision to avoid damage. The collision protection system includes a radar monitoring device, a vehicle speed monitoring module, and a collision avoidance control module. The collision avoidance control module is configured to receive real-time data from the radar and the vehicle speed detection module and control the movement of the bracket assembly based on the real-time data. The control method includes a data acquisition stage, a calculation and judgment stage, and a position adjustment stage. This invention relates to the field of vehicle safety and provides a radar monitoring device, a collision protection system, and a control method. By moving the radar position through the bracket assembly and a first slide rail, the radar is moved away from the front crossbeam during a collision, preventing damage to the radar and reducing maintenance costs.

Description

Technical Field

[0001] This article relates to the field of vehicle safety technology, and in particular to a radar monitoring device, a collision protection system and a control method. Background Technology

[0002] With the advent of the era of intelligent driving, most vehicles on the market are now equipped with radar for detecting road conditions. Whether it's a millimeter-wave radar costing thousands of yuan or a lidar costing tens of thousands of yuan, this radar is generally installed between the front crossbeam and the front bumper. However, this radar is positioned so far forward that it is easily damaged by bumps or collisions during daily driving. As radar is a precision component with high sensitivity, even minor damage can have a significant impact, and its repair costs are relatively high. Summary of the Invention

[0003] This application provides a radar monitoring device, including a radar, which is disposed corresponding to the front crossbeam for detecting obstacles in front of the vehicle, and further comprising:

[0004] A slide rail assembly, the slide rail assembly including a first slide rail, one end of the first slide rail being connected to the front crossbeam and the other end extending toward the driver's cabin of the vehicle;

[0005] A bracket assembly, on which the radar is fixed, is configured to slide on a slide rail assembly to approach or move away from the front crossbeam, and is configured to move the radar away from the front crossbeam in the event of a collision to avoid damage.

[0006] In one possible design, the slide rail assembly further includes a second slide rail disposed on the front crossbeam and arranged along the length of the front crossbeam, with one end of the first slide rail communicating with the second slide rail;

[0007] The radar monitoring device includes the abnormal state of the bracket assembly sliding on the first slide rail, and the normal state of sliding on the second slide rail.

[0008] One possible design is that the end of the first slide rail away from the second slide rail is provided with a fixing seat, and the fixing seat is configured to be connected to the vehicle frame;

[0009] The slide rail assembly includes a first position where the first slide rail and the second slide rail are connected, and a second position on the first slide rail and close to the fixed base.

[0010] One possible design is that the first position is located at the center of the second slide rail, and the first slide rail is perpendicular to the second slide rail.

[0011] In one possible design, the bracket assembly includes a bracket body and a drive assembly connected together, the radar is fixed to the bracket body, and the drive assembly is configured to drive the bracket body to slide on the slide rail assembly.

[0012] This application provides a collision protection system, including the aforementioned radar monitoring device, and further comprising:

[0013] The vehicle speed detection module is configured to detect the speed of the vehicle.

[0014] The collision avoidance control module is electrically connected to the vehicle speed detection module and the radar monitoring device, respectively. The collision avoidance control module is configured to receive real-time data from the radar and the vehicle speed detection module and control the action of the bracket assembly based on the real-time data.

[0015] One possible design also includes a steering module, which includes a turn signal detection mechanism and / or a steering wheel detection mechanism, wherein the turn signal detection mechanism is configured to detect the state of the turn signal, and the steering wheel detection mechanism is configured to monitor the left and right rotation state of the steering wheel;

[0016] The steering module is electrically connected to the anti-collision control module, which is configured to control the movement of the bracket assembly based on the detection data from the turn signal detection mechanism and / or the steering wheel detection mechanism.

[0017] One possible design also includes a position detection module electrically connected to the anti-collision control module, the position detection module being configured to detect the position of the bracket assembly.

[0018] This application provides a control method for a collision protection system, applied to the aforementioned collision protection system, comprising:

[0019] The radar collects the distance between the vehicle and the obstacle, and the vehicle speed detection module collects the vehicle speed;

[0020] Under the collected vehicle speed conditions, the collision avoidance control module compares the distance between the vehicle and the obstacle with a preset safe distance;

[0021] Based on a distance greater than or less than a preset safety distance, the anti-collision control module outputs an action command to the bracket assembly, which then enters a position adjustment phase. During the position adjustment phase, the module controls the bracket assembly to move away from the front crossbeam.

[0022] One possible design, controlling the bracket assembly to move away from the front crossbeam, includes:

[0023] The position detection module collects the position of the radar and feeds it back to the collision avoidance control module;

[0024] The collision avoidance control module determines that the radar monitoring device is in normal state based on the radar's position, and then determines whether the preset position conditions are met. The preset position conditions are set to the radar being in a first position.

[0025] Based on satisfying preset position conditions, the bracket assembly is controlled to move from the first position to the second position;

[0026] If the preset position conditions are not met, the bracket assembly is controlled to move to the first position first, and then move from the first position to the second position.

[0027] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0029] Figure 1 This is a schematic diagram of a radar monitoring device according to an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of an abnormal state of a radar monitoring device according to an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the left-turning state of a radar monitoring device according to an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of a collision protection system according to an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of a collision protection system according to another embodiment of this application;

[0034] Figure 6 This is a schematic diagram of a control method for a collision protection system according to an embodiment of this application.

[0035] Explanation of icon numbers:

[0036] 100-Radar monitoring device, 101-Radar, 102-Slide rail assembly, 103-Bracket assembly, 104-First slide rail, 105-First slide rail, 106-First position, 107-Second position, 108-Third position, 109-Fourth position, 200-Vehicle speed detection module, 300-Collision avoidance control module, 400-Steering wheel detection mechanism, 500-Turn signal detection mechanism, 600-Front crossbeam, 700-Fixed seat.

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] Currently, the radar in relevant vehicles is usually located at the front, fixed between the front crossbeam and the bumper. If the front of the car is bumped, the radar is easily damaged. Since the radar is a precision component with high sensitivity, even a small damage can have a huge impact. Replacing the radar will also result in high repair costs.

[0040] Please refer to Figures 1 to 3 The radar monitoring device of this invention, used in a vehicle, can acquire road condition information and protect the radar from damage in the event of a collision. Figure 1 As shown, the radar monitoring device includes a radar 101, a slide rail assembly 102, and a bracket assembly 103. The radar 101 is mounted on the front crossbeam 600 and can detect obstacles (such as buildings, motor vehicles, and pedestrian lights) in front of the vehicle and obtain the distance to the obstacles. The slide rail assembly 102 includes a first slide rail 104, one end of which is connected to the front crossbeam 600, and the other end extends into the vehicle's driver's cabin. The radar 101 is mounted on the bracket assembly 103, and the bracket assembly 103 can slide on the slide rail assembly 102, allowing the radar 101 to move closer to or further away from the front crossbeam 600. Thus, the bracket assembly 103 can move the radar 101 away from the front crossbeam 600 during a collision to avoid damage. Therefore, the radar monitoring device can move the position of the radar 101 through the bracket assembly 103 and the first slide rail 104, so that when the front crossbeam 600 is collided, the radar 101 is moved away from the front crossbeam 600, thus preventing the radar 101 from being damaged by the collision, protecting the radar 101 and reducing maintenance costs.

[0041] like Figure 1 and Figure 2As shown, the slide rail assembly 102 has two slide rails. In addition to the first slide rail 104 mentioned above, it also has a second slide rail 105. The first slide rail 104 and the second slide rail 105 are connected. Specifically, the second slide rail 105 is arranged along the transverse direction of the vehicle, that is, along the length direction of the front crossbeam 600, that is, along the second direction. The front crossbeam 600 has a mounting position for the second slide rail 105. The second slide rail 105 is fixed in the mounting position. When the bracket assembly 103 is on the second slide rail 105, the radar 101 can monitor road condition information, and the front crossbeam 600 will not interfere with the monitoring of the radar 101.

[0042] like Figure 1 and Figure 2 As shown, the first slide rail 104 is arranged along the longitudinal direction of the vehicle, i.e., along the first direction, which is perpendicular to the second direction. One end of the first slide rail 104 is provided with a fixing seat 700, which is connected to a structure in the vehicle frame. The other end of the first slide rail 104 is connected to the second slide rail 105, so that the bracket assembly 103 can slide smoothly on the first slide rail 104 and the second slide rail 105, and can also switch between the first slide rail 104 and the second slide rail 105. The bracket assembly 103 can switch slide rails at the contact position of the first slide rail 104 and the second slide rail 105. For example, the bracket assembly 103 can move from one position on the first slide rail 104 to the contact position between the two, which is the first position 106, and then move to another position on the second slide rail 105. The second slide rail 105 is centrally located on the front crossbeam 600 and is symmetrical from left to right. The first slide rail 104 is connected to the center of the second slide rail 105 and is perpendicular to the second slide rail 105. Thus, the first position 106 is located at the connection between the first slide rail 104 and the second slide rail 105, and the second position 107 is located on the first slide rail 104 and close to the fixed seat 700. At the same time, the radar monitoring device includes the bracket assembly 103 in the abnormal state of sliding on the first slide rail 104 and the normal state of sliding on the second slide rail 105.

[0043] In some exemplary embodiments, such as Figure 1 and Figure 3 As shown, the radar monitoring device, under normal conditions, is further divided into a centering state, a left-turning state, and a right-turning state, as follows: Figure 1 As shown, the radar monitoring device is in its centered position under normal conditions, with the bracket assembly 103 in the first position 106. The second slide rail 105 has a third position 108 and a fourth position 109; the third position 108 is to the left of the first position 106, and the fourth position 109 is to the right of the first position 106. Figure 3As shown, when the bracket assembly 103 is in the third position 108, the radar monitoring device is in the left-turn state in the normal state. When it is in the fourth position 109, the radar monitoring device is in the right-turn state in the normal state.

[0044] In some exemplary embodiments, the first slide rail 104 is not connected to the center of the second slide rail 105, but is offset to the left or right, so that the first position 106 is not located at the center of the front crossbeam 600.

[0045] In some exemplary embodiments, the first slide rail 104 is not perpendicular to the second slide rail 105, so that the first slide rail 104 avoids some components in the forward nacelle.

[0046] In some exemplary embodiments, the bracket assembly 103 includes a bracket body and a drive assembly connected together. The radar 101 is fixed on the bracket body, and the drive assembly may be a motor that can drive the bracket body to slide on the slide rail assembly 102.

[0047] In some exemplary embodiments, such as Figure 4 As shown, a collision protection system includes a radar monitoring device 100, a vehicle speed detection module 200, and a collision avoidance control module 300. The vehicle speed detection module 200 detects the vehicle speed. The collision avoidance control module 300 is electrically connected to both the vehicle speed detection module 200 and the radar monitoring device 100. Furthermore, the collision avoidance control module 300 is electrically connected to both a radar 101 and a bracket assembly 103. Real-time data from the radar 101 and the vehicle speed detection module 200 can be fed back to the collision avoidance control module 300. The collision avoidance control module 300 can receive real-time data collected by the radar 101 and the vehicle speed detection module 200. Simultaneously, the collision avoidance control module 300 can control the movement of the bracket assembly 103, specifically its sliding motion.

[0048] In some exemplary embodiments, such as Figure 5 As shown, the collision protection system also includes a steering module, which comprises a turn signal detection mechanism 500 and a steering wheel detection mechanism 400. The turn signal detection mechanism 500 detects the status of the turn signals, i.e., whether the left or right turn signal is illuminated. The steering wheel detection mechanism 400 monitors the left and right rotation of the steering wheel; for example, it can detect the direction and angle of rotation when the steering wheel is turned to the left by a certain angle. In some embodiments, the steering module includes only one of the turn signal detection mechanism 500 and the steering wheel detection mechanism 400.

[0049] In some exemplary embodiments, the collision protection system further includes a position detection module electrically connected to the aforementioned anti-collision control module 300. The position detection module can detect the position of the bracket assembly 103 and feed the position information back to the anti-collision control module 300.

[0050] In some exemplary embodiments, such as Figure 6 As shown, a control method for a collision protection system, applied to the aforementioned collision protection system, includes three stages: a data acquisition stage, a calculation and judgment stage, and a position adjustment stage. In the data acquisition stage, the radar 101 acquires the distance between the vehicle and the obstacle, while the vehicle speed detection module acquires the vehicle speed. Both send the data to the collision avoidance control module 300. In the calculation and judgment stage, based on the acquired vehicle speed, the collision avoidance control module 300 determines a preset safe distance. Subsequently, the collision avoidance control module 300 compares the measured distance between the vehicle and the obstacle with the preset safe distance. If the preset distance is not met, the control proceeds to the next stage, at which point the collision avoidance control module 300 outputs an action command to the bracket assembly 103. During the position adjustment phase, the bracket assembly 103 is controlled by the anti-collision control module 300, moving the bracket assembly 103 away from the front crossbeam 600. During this process, the position detection module first acquires the position of the radar 101 and feeds it back to the anti-collision control module 300. Then, based on the position of the radar 101, the anti-collision control module 300 determines that the radar monitoring device is in a normal state and then checks whether the preset position conditions are met. These preset position conditions are set to the radar 101 being in a first position. If the preset position conditions are met, the anti-collision control module 300 controls the bracket assembly 103 to move from the first position 106 to the second position 107. If the preset position conditions are not met, i.e., the radar 101 is on the second slide rail 105 and not in the first position 106, the anti-collision control module 300 controls the bracket assembly 103 to first move to the first position 106 and then from the first position 106 to the second position 107.

[0051] In some exemplary embodiments, the second slide rail 105 has a third position 108 and a fourth position 109, with the third position 108 located to the left of the first position 106 and the fourth position 109 located to the right of the first position 106. When the radar monitoring device is in its normal state, the position of the bracket assembly 103 can be switched between the first position 106, the third position 108, and the fourth position 109.

[0052] In some exemplary embodiments, a control method for a collision protection system includes three stages: a steering data acquisition stage, a position determination stage, and a position adjustment stage. The anti-collision control module 300 can control the movement of the support assembly 103 based on data from the steering module. Specifically, in the steering data acquisition stage, the steering module acquires detection data and transmits steering signals to the anti-collision control module 300. For example, if the turn signal mechanism 500 detects the left turn signal illuminating, it transmits a left turn signal to the anti-collision control module 300; or if the steering wheel detection mechanism 400 detects the steering wheel turning to the left, it transmits a left turn signal to the anti-collision control module 300. The anti-collision control module 300 determines the target position of the support assembly 103 based on the steering signals. Simultaneously, the position detection module detects the position of the support assembly 103 and determines whether the current position of the support assembly 103 meets the target position. If it does not meet the target position, the position adjustment stage begins; if it meets the target position, the position is maintained. In the position adjustment stage, the anti-collision control module controls the support assembly 103 to move from its current position to the target position. For example, when the turn signal mechanism 500 detects that the left turn signal is illuminated, it transmits the left turn signal to the collision avoidance control module 300. The collision avoidance control module 300 determines that the target position of the bracket assembly 103 is the third position 108. At the same time, the position detection module detects that the bracket assembly 103 is currently in the first position. Finally, the bracket assembly 103 is controlled to move to the left to the third position 108. Thus, this collision protection system can adjust the position of the radar 101 according to the steering direction, making the radar 101 biased towards the vehicle's steering direction, expanding the radar 101's monitoring range, avoiding blind spots, and greatly improving vehicle safety.

[0053] As described above, the radar monitoring device can move the position of the radar 101 via the bracket assembly 103 and the first slide rail 104. In the event of a collision with the front crossbeam 600, the radar 101 is moved away from the crossbeam 600, preventing damage to the radar 101 and reducing maintenance costs. Furthermore, this collision protection system can adjust the position of the radar 101 according to the vehicle's steering direction, making the radar 101 more oriented towards the vehicle's steering direction, expanding its monitoring range, avoiding blind spots, and significantly improving vehicle safety.

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A radar monitoring device, comprising a radar, wherein the radar is disposed corresponding to a front crossbeam for detecting obstacles in front of a vehicle, characterized in that, Also includes: A slide rail assembly, the slide rail assembly including a first slide rail, one end of the first slide rail being connected to the front crossbeam and the other end extending toward the driver's cabin of the vehicle; A bracket assembly, on which the radar is fixed, the bracket assembly is configured to slide on a slide rail assembly to approach or move away from the front crossbeam, and the bracket assembly is configured to move the radar away from the front crossbeam in the event of a collision to avoid damage; The slide rail assembly further includes a second slide rail, which is disposed on the front crossbeam and arranged along the length of the front crossbeam, and one end of the first slide rail is connected to the second slide rail. The radar monitoring device includes the abnormal state of the bracket assembly sliding on the first slide rail, and the normal state of sliding on the second slide rail.

2. The radar monitoring device according to claim 1, characterized in that, The first slide rail has a fixed seat at the end away from the second slide rail, and the fixed seat is configured to be connected to the vehicle frame; The slide rail assembly includes a first position located at the connection between the first slide rail and the second slide rail, and a second position located on the first slide rail and close to the fixed base.

3. The radar monitoring device according to claim 2, characterized in that, The first position is set at the center of the second slide rail, and the first slide rail is perpendicular to the second slide rail.

4. The radar monitoring device according to claim 2, characterized in that, The bracket assembly includes a bracket body and a drive assembly connected to each other. The radar is fixed on the bracket body, and the drive assembly is configured to drive the bracket body to slide on the slide rail assembly.

5. A collision protection system, comprising the radar monitoring device as described in claim 2, characterized in that, Also includes: A vehicle speed detection module, configured to detect the vehicle speed; The collision avoidance control module is electrically connected to the vehicle speed detection module and the radar monitoring device, respectively. The collision avoidance control module is configured to receive real-time data from the radar and the vehicle speed detection module and control the action of the bracket assembly based on the real-time data.

6. The collision protection system according to claim 5, characterized in that, It also includes a steering module, which includes a turn signal detection mechanism and / or a steering wheel detection mechanism. The turn signal detection mechanism is configured to detect the status of the turn signal, and the steering wheel detection mechanism is configured to monitor the left and right rotation status of the steering wheel. The steering module is electrically connected to the anti-collision control module, which is configured to control the movement of the bracket assembly based on the detection data from the turn signal detection mechanism and / or the steering wheel detection mechanism.

7. The collision protection system according to claim 5, characterized in that, It also includes a position detection module, which is electrically connected to the anti-collision control module, and the position detection module is configured to detect the position of the bracket assembly.

8. A control method for a collision protection system, characterized in that, Applied to the collision protection system of claim 7, comprising: The radar collects the distance between the vehicle and the obstacle, and the vehicle speed detection module collects the vehicle speed; Under the collected vehicle speed conditions, the collision avoidance control module compares the distance between the vehicle and the obstacle with a preset safe distance; Based on a distance greater than or less than a preset safety distance, the anti-collision control module outputs an action command to the bracket assembly, which then enters a position adjustment phase. During the position adjustment phase, the module controls the bracket assembly to move away from the front crossbeam.

9. The control method for the collision protection system according to claim 8, characterized in that, Controlling the bracket assembly to move away from the front crossbeam includes: The position detection module collects the position of the radar and feeds it back to the collision avoidance control module; The collision avoidance control module determines that the radar monitoring device is in normal state based on the radar's position, and then determines whether the preset position conditions are met. The preset position conditions are set to the radar being in a first position. Based on satisfying preset position conditions, the bracket assembly is controlled to move from the first position to the second position; If the preset position conditions are not met, the bracket assembly is controlled to move to the first position first, and then move from the first position to the second position.

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