Bus target object for automobile auxiliary driving test

Abstract

The utility model discloses a bus target object for an automobile auxiliary driving test, and relates to the technical field of automobile intelligent auxiliary driving system evaluation, and the target object comprises a head buffer modeling plate, a support plate, a first automobile body gas model section, a second automobile body gas model section, a third automobile body gas model section, a tail buffer modeling plate and an automobile coat. The vehicle body gas model first section, the vehicle body gas model second section and the vehicle body gas model third section are arranged and connected in the direction from the vehicle head to the vehicle tail, the vehicle coat is arranged outside all the vehicle body gas models in a sleeving mode, the supporting plate is installed between the vehicle body gas model first section and the vehicle head buffering modeling plate, and the vehicle tail buffering modeling plate is arranged at the rear end of the vehicle body gas model third section; according to the technical scheme, structural strength and durability are both considered in the structural design of the bus body, the bus body has good buffering capacity and is not prone to being damaged, the surface layer is covered with the aluminum foil coating cloth and the metal pyramid reflecting material, the radar reflection attribute same as that of a real bus is achieved, and the bus body can be applied to construction of relevant test scenes of an automobile intelligent driving system.

Description

Technical Field

[0001] This utility model relates to the field of automotive intelligent assisted driving system evaluation technology, and more specifically, to a bus target object for automotive assisted driving testing. Background Technology

[0002] With the rapid development of Advanced Driver Assistance Systems (ADAS), vehicle systems need to more intelligently identify and respond to various obstacles on the road, including those encountered by buses in urban road scenarios. Buses are very common in urban streets and other similar scenarios, and their driving behavior often involves changing lanes and stopping at bus stops, making them one of the targets that ADAS systems need to pay special attention to.

[0003] In real life, rear-end collisions and side collisions between vehicles and buses account for a significant proportion of traffic accidents. "Ghost pedestrian" accidents caused by temporarily parked buses obstructing the view of pedestrians and drivers also pose a significant challenge to intelligent vehicle driving systems. To ensure the safety of vehicles and pedestrians in these situations, advanced driver assistance systems (ADAS) need to be able to accurately identify and avoid buses. Therefore, developing a target object that can simulate a bus is crucial for verifying and optimizing the perception, decision-making, and execution capabilities of ADAS. Using this target object, relevant scenarios can be simulated in laboratories or test tracks, providing vital support for the R&D of intelligent ADAS by major automakers.

[0004] In the process of vehicle testing and evaluation, to ensure the safety of the test vehicle and passengers, it is impossible to use a real bus for testing. Currently, there is a lack of such test target products both domestically and internationally. Therefore, there is an urgent need for a bus target to meet the needs of automakers and related testing and evaluation institutions in evaluating intelligent assisted driving functions. Utility Model Content

[0005] The purpose of this invention is to provide a bus target object for testing assisted driving of automobiles, which solves the problem of the scarcity of existing similar target objects, increases the coverage of target objects in real road scenarios, and increases the accuracy of the evaluation data obtained from the test.

[0006] The technical solution of this utility model is: to provide a bus target object for automobile assisted driving test, the bus target object includes: a front buffer shaping plate, a support plate, a first section of the body air mold, a second section of the body air mold, a third section of the body air mold, and an outer cover;

[0007] The first, second, and third sections of the inflatable car body are arranged sequentially from the front to the rear of the car. The rear end of the first section is connected to the front end of the second section, and the rear end of the second section is connected to the front end of the third section. The car cover is placed over the entire structure formed by connecting the first, second, and third sections. One side of the support plate is connected to the front end of the first section, and the other side is connected to the front bumper plate.

[0008] Furthermore, the first section of the vehicle body inflatable model includes a left upright plate, a right upright plate, and air columns. The left and right upright plates are symmetrically arranged on the left and right sides of the first section of the vehicle body inflatable model. There are nine air columns in total, arranged in three rows and three columns between the left and right upright plates.

[0009] The upper end of the left upright plate of the inflatable model section is provided with a left upright plate air conditioner-shaped protrusion, and the upper end of the right upright plate of the inflatable model section is provided with a right upright plate air conditioner-shaped protrusion. The left upright plate air conditioner-shaped protrusion and the right upright plate air conditioner-shaped protrusion are used to simulate the shape of the air conditioner on the top of a bus.

[0010] Furthermore, the first section of the inflatable car body has symmetrically arranged front wheel cone pre-drilled holes on both the left and right sides. The front wheel cone pre-drilled holes are located on the lower half of the first section of the inflatable car body near the front edge. The front wheel cone pre-drilled holes are used to install the metal reflective cone wrapped with external foam.

[0011] Furthermore, the second section of the vehicle body inflatable model includes a left upright plate, a right upright plate, and air columns. The left and right upright plates are symmetrically arranged on the left and right sides of the first section of the vehicle body inflatable model. There are nine air columns in total, arranged in three rows and three columns between the left and right upright plates.

[0012] Furthermore, the second section of the inflatable car body has symmetrically arranged rear wheel cone pre-drilled holes on both the left and right sides. The rear wheel cone pre-drilled holes are located on the lower half of the second section of the inflatable car body near the front edge. The rear wheel cone pre-drilled holes are used to install the metal reflective cone wrapped with external foam.

[0013] Furthermore, the third section of the inflatable car body includes a front upright plate, a rear upright plate, and air columns. The front and rear upright plates are symmetrically arranged on the front and rear sides of the third section. There are six air columns in total, arranged in two rows and three columns between the front and rear upright plates.

[0014] Furthermore, the vehicle cover includes a front cover, a middle cover, and a rear cover. The rear edge of the front cover is connected to the front edge of the middle cover, and the rear edge of the middle cover is connected to the front edge of the rear cover. The front cover is used to wrap the first section of the vehicle body inflatable, the middle cover is used to wrap the second section of the vehicle body inflatable, and the rear cover is used to wrap the third section of the vehicle body inflatable.

[0015] Furthermore, the support plate includes an upper support plate and a lower support plate. The upper support plate is located in the upper half of the front end of the first section of the inflatable car body, and the left and right ends of the upper support plate are respectively connected to the upper half of the left upright plate and the right upright plate of the first section of the inflatable car body. The lower support plate is located in the lower half of the front end of the first section of the inflatable car body, and the left and right ends of the lower support plate are respectively connected to the lower half of the left upright plate and the right upright plate of the first section of the inflatable car body.

[0016] The front bumper plate includes an upper front bumper plate and a lower front bumper plate. The upper front bumper plate is fixed to the upper support plate, and the lower front bumper plate is fixed to the lower support plate.

[0017] Furthermore, the bus target also includes a reflective material component made of aluminum foil composite fabric, which is disposed around the lower half of the bus target and located inside the vehicle's outer cover.

[0018] Furthermore, the target objects for buses also include rearview mirror styling components and rear bumper styling panels;

[0019] The rearview mirror styling assembly includes a left rearview mirror and a right rearview mirror, which are symmetrically arranged on the left and right sides of the front bumper styling upper plate via elastic ropes.

[0020] The rear buffer molding plate is fixed to the lower half of the third section of the vehicle body inflatable model and is used to simulate the shape of the rear of a bus.

[0021] The beneficial effects of this utility model are:

[0022] First, the technical solution of this utility model provides a bus target object for testing assisted driving of automobiles. The bus target object's body structure is composed of three sections of inflatable molds, which reduces the weight of a single transport, facilitates assembly and transfer, and the three-section inflatable mold structure can cushion the impact through collapse and bending, making it less prone to collision damage. It can be reused, reducing the waste of manufacturing materials. A rubber base is set under the inflatable mold structure to protect the inflatable mold itself and prevent air leakage due to surface wear. Compared with other target objects composed of multiple plate structures, the three-section inflatable mold structure of this utility model has good cushioning ability, is not easily damaged, and reduces the complexity of assembly. The three sections of the inflatable mold can be inflated and deflated simultaneously, improving assembly efficiency.

[0023] Secondly, in the technical solution of this utility model, a front buffer shaping plate 1 and a rearview mirror shaping component 2 are set at the front end of the bus target object, and a rear buffer shaping plate 7 is set at the rear end. An air conditioner shaped protrusion is set above the first section 4 of the vehicle body inflatable model. A pattern corresponding to the appearance of a real bus is drawn on the outer surface of the vehicle outer cover 9, so that the overall appearance and size of the bus target object are similar to those of a real bus, and the same visual characteristics as a real bus can be achieved, which is conducive to improving the accuracy of subsequent tests.

[0024] Third, in the technical solution of this utility model, the surface of the bus target is covered with aluminum foil coated fabric and a metal pyramid reflective material is set, so that the bus target has the same radar reflection properties as a real bus and can be recognized by the test vehicle's autonomous driving vision system. The technical solution of this utility model is applicable to the construction of test scenarios related to automotive intelligent driving systems, and can achieve the same recognition effect as a real bus, which is conducive to further improving the accuracy of subsequent tests.

[0025] Fourth, the technical solution of this utility model takes into account both structural strength and durability. A support plate is set between the first section of the vehicle body air mold and the front buffer shaping plate. The support plate supports the front buffer shaping plate, which enhances the strength of the entire front part of the bus target. The technical solution of this utility model sets the front buffer shaping plate and the support plate as an upper and lower two-piece structure. This structure can effectively disperse the impact force when the bus target is subjected to a frontal impact, so that the bus target is not easily damaged by impact during the assisted driving test. At the same time, this structure can also reduce the size of the front buffer shaping plate and the support plate, reduce the difficulty of transportation and the degree of deformation during use. Attached Figure Description

[0026] The advantages of the above and / or additional aspects of this utility model will become apparent and readily understood in the description of the embodiments taken in conjunction with the following drawings, wherein:

[0027] Figure 1This is a schematic diagram of the overall structure of a bus target for testing assisted driving of a vehicle according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the first section of a vehicle body inflatable model according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the second section of a vehicle body inflatable model according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the third section of a vehicle body inflatable model according to an embodiment of the present invention;

[0031] Figure 5 This is a structural schematic diagram of a front bumper styling plate, a rearview mirror styling component, and a support plate according to an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure of a car cover according to an embodiment of the present invention.

[0033] Among them, 1-front bumper styling plate, 11-upper front bumper styling plate, 12-lower front bumper styling plate, 2-rearview mirror styling component, 21-left rearview mirror, 22-right rearview mirror, 3-support plate, 31-upper support plate, 32-lower support plate, 4-first section of inflatable body, 41-left vertical plate of inflatable body section, 411-air conditioner protrusion on left vertical plate, 42-right vertical plate of inflatable body section, 421-air conditioner protrusion on right vertical plate, 43-air column of inflatable body section. 44-Pre-drilled hole for front wheel cone, 5-Second section of inflatable body, 51-Left upright plate of second section of inflatable body, 52-Right upright plate of second section of inflatable body, 53-Air column of second section of inflatable body, 54-Pre-drilled hole for rear wheel cone, 6-Third section of inflatable body, 61-Front upright plate of third section of inflatable body, 62-Rear upright plate of third section of inflatable body, 63-Air column of third section of inflatable body, 7-Rear buffer shaping plate, 8-Reflective material component, 9-Car cover, 91-Head cover, 92-Middle cover, 93-Rear cover. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0035] In the following description, many specific details are set forth in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1 As shown, this embodiment provides a bus target for testing assisted driving of a vehicle. The bus target includes: a front bumper shaping plate 1, a support plate 3, a first section of the vehicle body inflatable model 4, a second section of the vehicle body inflatable model 5, a third section of the vehicle body inflatable model 6, and an outer cover 9.

[0037] The first section 4, the second section 5, and the third section 6 of the inflatable car body are arranged sequentially from the front to the rear of the car. The rear end of the first section 4 is connected to the front end of the second section 5 via Velcro, and the rear end of the second section 5 is connected to the front end of the third section 6 via Velcro. The car cover 9 is placed on the outside of the overall structure formed by connecting the first section 4, the second section 5, and the third section 6. One side of the support plate 3 is connected to the front end of the first section 4, and the other side of the support plate 3 is connected to the front bumper plate 1.

[0038] In this embodiment, when describing the various components of the bus target, the end closest to the front of the bus target is designated as the front side or front end, the end closest to the rear of the bus target is designated as the rear side or rear end, and the front direction of the bus target is used as a reference, the side corresponding to the right of the bus target is designated as the right side, and the side corresponding to the left of the bus target is designated as the left side.

[0039] Section 4 of the inflatable car body model is an inflatable model, and its structure after being fully inflated is as follows: Figure 2 As shown, the first section 4 of the inflatable car body includes a left upright plate 41, a right upright plate 42, and air columns 43. The left upright plate 41 and the right upright plate 42 are both inflatable upright plates, and the air columns 43 are circular inflatable columns. The left upright plate 41 and the right upright plate 42 are symmetrically arranged on the left and right sides of the first section 4 of the inflatable car body. There are nine air columns 43 in total, which are arranged in three rows and three columns between the left upright plate 41 and the right upright plate 42.

[0040] A pressure valve is installed on the first section of the air column 43 of the air model. This pressure valve is used to release the pressure and air when the air pressure inside the first section 4 of the air model reaches a preset value, so as to avoid damage to it.

[0041] In this embodiment, when the first section 4 of the inflatable car body is impacted, the left upright plate 41 or the right upright plate 42 of the inflatable section deforms to disperse the impact force and bends inward, transmitting the impact force to the air column 43 of the inflatable section. The air column 43 of the inflatable section collapses and bends after being compressed to buffer the impact. During this process, when the impact force on the first section 4 of the inflatable car body is too large, due to the overall contraction of the first section 4 of the inflatable car body, its internal air pressure will reach a preset value. The pressure valve installed on the air column 43 of the inflatable car body will open in time to release air under the action of air pressure, preventing damage to the first section 4 of the inflatable car body. The pressure valve can be an existing spring-loaded pressure valve, diaphragm pressure valve, etc.

[0042] A rubber pad is installed at the bottom edge of the first section 4 of the inflatable car body where it contacts the ground. This rubber pad is used to protect the first section 4 of the inflatable car body and prevent air leakage due to skin wear. Specifically, rubber pads are installed at the lower edge of the left vertical plate 41 and the lower edge of the right vertical plate 42 of the inflatable car body section.

[0043] The upper end of the left vertical plate 41 of the inflatable model is provided with a left vertical plate air conditioner protrusion 411, and the upper end of the right vertical plate 42 of the inflatable model is provided with a right vertical plate air conditioner protrusion 421. The left vertical plate air conditioner protrusion 411 and the right vertical plate air conditioner protrusion 421 are used to simulate the shape of the air conditioner installed on the top of a real bus.

[0044] In this embodiment, the height of the air conditioner protrusion 411 on the left vertical panel and the air conditioner protrusion 421 on the right vertical panel is 200mm.

[0045] The first section 4 of the inflatable vehicle body has symmetrically arranged front wheel cone pre-drilled holes 44 on both the left and right sides. The front wheel cone pre-drilled holes 44 are located on the lower half of the first section 4 of the inflatable vehicle body near the front edge. Specifically, the lower half of the left upright plate 41 of the inflatable vehicle body section and the lower half of the right upright plate 42 of the inflatable vehicle body section are both provided near the front edge. The front wheel cone pre-drilled holes 44 are used to install the metal reflective cone wrapped with foam. The metal reflective cone wrapped with foam is used to simulate the high reflectivity of the hub metal material of a real bus wheel.

[0046] In this embodiment, the metal reflective cones with external foam coverings installed in the front wheel cone pre-drilled holes 44 and 54 can be identified by an autonomous driving vision system (such as a millimeter-wave radar system) during assisted driving tests. The metal reflective cones with external foam coverings can be used to simulate the hub metal material of a real bus wheel. The metal reflective cones with external foam coverings are fixed in the front wheel cone pre-drilled holes 44 and 54 with adhesive.

[0047] Section 2.5 of the inflatable car body model is also an inflatable model, and its structure after being fully inflated is as follows: Figure 3As shown, the second section 5 of the inflatable car body includes a left upright plate 51, a right upright plate 52, and air columns 53. The left upright plate 51 and the right upright plate 52 are both inflatable upright plates, and the air columns 53 are circular inflatable columns. The left upright plate 51 and the right upright plate 52 are symmetrically arranged on the left and right sides of the first section 4 of the inflatable car body. There are nine air columns 53 in total, and the nine air columns 53 are arranged in three rows and three columns between the left upright plate 51 and the right upright plate 52.

[0048] A pressure valve is installed on the second air column 53 of the inflatable model. This pressure valve is used to release air pressure inside the second section 5 of the inflatable model when the internal air pressure reaches a preset value, thus preventing damage. The deformation process of the second section 5 of the inflatable model when subjected to impact is the same as that of the first section 4 of the inflatable model, and will not be described again here.

[0049] A rubber pad is installed at the bottom edge of the second section 5 of the inflatable car body where it contacts the ground. This rubber pad is used to protect the second section 5 of the inflatable car body and prevent air leakage due to skin wear. Specifically, rubber pads are installed at the lower edge of the left vertical plate 51 and the lower edge of the right vertical plate 52 of the second section of the inflatable car body.

[0050] The second section 5 of the inflatable car body has symmetrically arranged rear wheel cone pre-drilled holes 54 on both sides. The rear wheel cone pre-drilled holes 54 are located on the lower half of the second section 5 of the inflatable car body near the front edge. Specifically, the lower half of the left upright plate 51 of the second section of the inflatable car body near the front edge and the lower half of the right upright plate 52 of the second section of the inflatable car body near the front edge are both provided with rear wheel cone pre-drilled holes 54. The rear wheel cone pre-drilled holes 54 are used to install the metal reflective cone wrapped with external foam.

[0051] Section 6 of the inflatable car body model is also an inflatable model, and its structure after being fully inflated is as follows: Figure 4 As shown, the third section 6 of the inflatable car body includes a front upright plate 61, a rear upright plate 62, and air columns 63. The front upright plate 61 and the rear upright plate 62 are both inflatable upright plates, and the air columns 63 are circular inflatable columns. The front upright plate 61 and the rear upright plate 62 are symmetrically arranged on the front and rear sides of the third section 6 of the inflatable car body. There are a total of six air columns 63, which are arranged in two rows and three columns between the front upright plate 61 and the rear upright plate 62.

[0052] A pressure valve is installed on the three-section air column 63 of the inflatable model. This pressure valve is used to release air pressure inside the third section 6 of the inflatable model when the internal air pressure reaches a preset value, thus preventing damage. The deformation process of the third section 6 of the inflatable model when subjected to an impact is the same as that of the first section 4 of the inflatable model, and will not be described again here.

[0053] A rubber pad is installed at the bottom edge of the third section 6 of the inflatable car body where it contacts the ground. This rubber pad is used to protect the third section 6 of the inflatable car body and prevent air leakage due to skin wear. Specifically, rubber pads are installed at the lower edge of the front upright plate 61 and the lower edge of the rear upright plate 62 of the inflatable car body.

[0054] In this embodiment, the bus body is composed of three sections of inflatable molds, which reduces the weight of a single transport and facilitates transfer and transportation. Moreover, the three sections of inflatable molds can be inflated and deflated simultaneously. Compared with other structures and installation methods (such as structures composed of multiple vertical and horizontal plates, and installation methods that require sequential installation of each plate), directly inflating and deflating the inflatable molds can reduce the complexity of assembly and improve assembly efficiency.

[0055] In this embodiment, the uprights of the first section 4 and the second section 5 of the vehicle body inflatable model are located on the left and right sides of the bus target, and the air columns therein are all facing the left and right directions of the bus target. The first section 4 and the second section 5 of the vehicle body inflatable model can cope with the side impact; the uprights of the third section 6 of the vehicle body inflatable model are located on the front and rear sides of the bus target, and the air columns therein are facing the front and rear directions of the bus target. The third section 6 of the vehicle body inflatable model can cope with the rear impact of the bus target.

[0056] The car cover 9 includes a front cover 91, a middle cover 92, and a rear cover 93. The rear edge of the front cover 91 is connected to the front edge of the middle cover 92 via Velcro (i.e., the overlapping part of the two is glued with Velcro). The rear edge of the middle cover 92 is connected to the front edge of the rear cover 93 via Velcro. After the front cover 91, the middle cover 92, and the rear cover 93 are connected, they can cover the overall structure formed by the first section 4 of the car body inflatable model, the second section 5 of the car body inflatable model, and the third section 6 of the car body inflatable model.

[0057] In this embodiment, in order to enable the front car cover 91, the middle car cover 92 and the rear car cover 93 to overlap each other and be glued together as a whole by Velcro, the rear edge of the front car cover 91 can be extended by 150mm, and Velcro can be provided at the overlapping position of the front car cover 91 and the middle car cover 92 for bonding. Similarly, the rear edge of the middle car cover 92 can be extended by 150mm, and Velcro can be provided at the overlapping position of the middle car cover 92 and the rear car cover 93 for bonding.

[0058] The head cover 91 is used to wrap the first section 4 of the inflatable car body. Strips of Velcro are provided along the lower edges of the left and right upright panels 41 and 42 of the first inflatable section to adhere to the Velcro along the lower edges of the head cover 91, thus securing the head cover 91. The middle cover 92 is used to wrap the second section 5 of the inflatable car body. Strips of Velcro are provided along the lower edges of the left and right upright panels 51 and 52 of the second inflatable section to adhere to the Velcro along the lower edges of the middle cover 92, thus securing the middle cover 92. The rear cover 93 is used to wrap the third section 6 of the inflatable car body. Long strips of Velcro are provided along the lower edges of the front and rear upright panels 61 and 62 of the third inflatable section to adhere to the Velcro along the lower edges of the rear cover 93, thus securing the rear cover 93.

[0059] In this embodiment, the vehicle cover 9 is a fabric cover made by cutting and sewing processes to protect the internal vehicle body inflatable. The exterior of the vehicle cover 9 can be decorated with corresponding patterns based on the actual shape of the bus by means of spraying, printing, surface coating, etc., so that the target bus is similar to a common bus, so as to better simulate the real bus. For example, air conditioner patterns are drawn on the head cover 91 at the positions corresponding to the air conditioner protrusions 411 on the left side panel and 421 on the right side panel.

[0060] In this embodiment, the strip Velcro at the lower edge of the car body air mold helps to flatten the surface of the car cover 9, so that the pattern drawn on the car cover 9 can be better displayed, while preventing the car cover 9 from shifting or peeling off the car body due to wind or external forces.

[0061] In this embodiment, to more conveniently wrap the vehicle cover 9 around the various components of the bus target, the vehicle cover 9 is divided into three parts. After the first section 4, the second section 5, and the third section 6 of the vehicle body inflator are inflated, these three parts of the vehicle cover are respectively placed on the outside of the first section 4, the second section 5, and the third section 6 of the vehicle body inflator.

[0062] The support plate 3 is located at the front end of the first section 4 of the inflatable car body. The support plate 3 includes an upper support plate 31 and a lower support plate 32. The upper support plate 31 is located in the upper half of the front end of the first section 4 of the inflatable car body, and the left and right ends of the upper support plate 31 are fixedly connected to the upper half of the left upright plate 41 and the right upright plate 42 of the first section of the inflatable car body, respectively. The lower support plate 32 is located in the lower half of the front end of the first section 4 of the inflatable car body, and the left and right ends of the lower support plate 32 are fixedly connected to the lower half of the left upright plate 41 and the right upright plate 42 of the first section of the inflatable car body, respectively. The lower edge of the upper support plate 31 is close to the upper edge of the lower support plate 32.

[0063] The front bumper shaping plate 1 is set on the side of the support plate 3 that is not connected to the first section 4 of the vehicle body inflatable model. The front bumper shaping plate 1 includes an upper front bumper shaping plate 11 and a lower front bumper shaping plate 12. The upper front bumper shaping plate 11 is fixed to the upper support plate 31 by Velcro, and the lower front bumper shaping plate 12 is fixed to the lower support plate 32 by Velcro. The lower edge of the upper front bumper shaping plate 11 is close to the upper edge of the lower front bumper shaping plate 12.

[0064] In this embodiment, the front bumper panel 1 is made of high-density pearl cotton or foam and its shape is set with reference to the shape of a common bus front. The support plate 3 is made of two layers of leather wrapped around EVA foam, giving it high rigidity. It is positioned between the front bumper plate 1 and the first section 4 of the vehicle body inflatable model. Due to its high rigidity, after the first section 4 is inflated, the support plate 3 forms a flat surface, which adheres to and is fixed to the front bumper plate 1, providing better support and enhancing the overall strength of the front of the bus. Furthermore, both the front bumper plate 1 and the support plate 3 employ a two-piece structure with upper and lower sections. When the bus is subjected to a frontal impact, this structure effectively disperses the impact force, preventing damage during assisted driving testing. Simultaneously, the two-piece structure allows the large front bumper plate 1 and support plate 3 to be divided into upper and lower sections, reducing transportation difficulty and minimizing deformation during transport and use.

[0065] The bus target used for assisted driving testing also includes a rear buffer panel 7, which is fixed to the lower half of the third section 6 of the vehicle body inflatable model by Velcro. It is a protruding structure at the rear of the bus target and is used to work with the rear cover 93 to simulate the shape of the rear of a real bus.

[0066] The bus target used for assisted driving testing also includes a reflective material component 8, which is made of aluminum foil composite fabric and is placed around the lower half of the bus target. The reflective material component 8 is located inside the vehicle cover 9. Specifically, when fixing the reflective material component 8, it can be cut to a suitable size and placed around the bus target, and then pasted on the sides of each vehicle body inflatable model, the front buffer panel, and the rear buffer panel.

[0067] In this embodiment, the aluminum foil composite fabric is a material composed of aluminum foil and fabric (usually synthetic fiber fabrics such as polyester or polyamide). Its basic structure typically involves bonding the aluminum foil to the fabric through hot pressing, bonding, or other composite processes, forming a composite material that possesses both the properties of aluminum foil and the flexibility of fabric. In this embodiment, the reflective properties of the aluminum foil are used to simulate the actual metal material of a bus body. This allows the autonomous driving system (such as a millimeter-wave radar system) of the test vehicle to more accurately identify the bus target during assisted driving tests, ensuring that the radar reflection properties of the bus target are consistent with those of a real bus, achieving the same recognition effect as a real bus.

[0068] The target object for the bus used for the test of assisted driving of automobiles also includes a rearview mirror styling component 2, which includes a left rearview mirror 21 and a right rearview mirror 22. The left rearview mirror 21 and the right rearview mirror 22 are respectively symmetrically set on the left and right sides of the front buffer styling plate 11 by elastic ropes.

[0069] In this embodiment, the rearview mirror styling component 2 is tightened to the front bumper styling plate 11 by elastic ropes, facilitating assembly. The use of elastic ropes provides a flexible connection, allowing for some movement and preventing damage from impacts during testing. The rearview mirror styling component 2 has a realistic shape, designed with reference to the shape of common bus rearview mirrors.

[0070] In this embodiment, the front bumper panel 1, the rearview mirror assembly 2, and the rear bumper panel 7 are made of high-density pearl cotton or foam. The materials used are low-cost, easy to manufacture, and lightweight, making them easy to transport.

[0071] In this embodiment, the appearance and size of the bus target are set with reference to common bus models. The overall length of the assembled bus target is about 10.5 meters. The appearance of the bus's wheels, automatic doors, windows, front and rear structures, as well as some of the bus's logos, stripe decorations, and body color, are all set on the external surface of the overall structure of the bus target in accordance with domestic industry standards and regional standards. This is done by drawing corresponding patterns to reflect the characteristics of a real bus and ensure that the bus target can be recognized by the test vehicle's autonomous driving vision system.

[0072] In this embodiment, nylon pull rings are provided on the outer side of each section of the vehicle body inflatable model. The pull rings pass through the pre-drilled holes on the outer car cover 9 and are exposed on the outside of the bus target object. When adjusting the position of the bus target object, it is convenient for personnel to lift the pull rings to move or transport the vehicle body inflatable model.

[0073] In this embodiment, the bus target can be independently supported on the ground, making it suitable for constructing test scenarios related to intelligent driving systems. The aluminum foil-coated fabric covering the surface of the bus target, along with reflective materials such as metal pyramids, ensures that the bus target has the same millimeter-wave radar RCS (Radar Cross Section) and lidar reflection properties as a real bus within a 360-degree range. Simultaneously, the bus target's shape, size, color, and other physical parameters are identical to a real bus, achieving the same visual characteristics. Its main components are all non-metallic materials, and through flexible connections, it is not easily damaged by collisions during testing, possessing strong cushioning performance and effectively protecting the test vehicle and personnel.

[0074] Using the bus target in this embodiment as the test target, the vehicle's assisted driving system is tested. The specific process is as follows:

[0075] When simulating scenarios where the vehicle is located in front of the bus and on the left and right sides of the bus, the entire bus target is used as the test target. The bus target is assembled. Specifically, the inflated body inflatable section 4, body inflatable section 5, and body inflatable section 6 are arranged sequentially from front to rear and connected head to tail using Velcro. The metal reflective cones wrapped in foam are installed in the pre-drilled holes 44 and 54 of the front wheel cones using glue. The head cover 91, middle cover 92, and rear cover 93 are wrapped around the body inflatable section 4, body inflatable section 5, and body inflatable section 6 respectively and fixed with Velcro. The support plate 3 is fixed to the front end of the body inflatable section 4. The front buffer shaping plate 1 is fixed to the support plate 3 with Velcro. The rearview mirror shaping component 2 is fixed to the front buffer shaping plate 1 with elastic rope. The rear buffer shaping plate 7 is fixed to the rear end of the body inflatable section 6. Finally, the reflective material component 8 is fixed around the lower half of the bus target.

[0076] After assembly, the bus target is placed on the driving path of the test vehicle. According to the test requirements, the test vehicle is operated to drive towards the bus target from the front, left and right sides in sequence (it can be in the form of driving forward, reversing or driving parallel to the bus) to simulate the interaction scenario and verify whether the car's driver assistance system can recognize the bus target and take timely measures such as alarm or emergency braking before a collision occurs.

[0077] When simulating a scenario where the vehicle is located behind a bus, the third section 6 of the inflatable bus body at the rear of the target object is used as the test target object. The test target object is assembled. Specifically, the rear cover 93 is wrapped around the outside of the inflated third section 6 of the bus body and fixed with Velcro. The rear buffer shaping plate 7 is fixed to the rear of the third section 6 of the bus body. The reflective material component 8 is fixed on both sides and the rear of the third section 6 of the bus body. The reflective material component 8 is located outside the rear cover 93.

[0078] After assembly, the test target is placed on the driving path of the test vehicle. According to the test requirements, the test vehicle is driven from behind towards the test target to simulate an interactive scenario and verify whether the car's driver assistance system can recognize the bus target and take timely safety measures such as alarm or emergency braking before a collision occurs.

[0079] In this embodiment, when it is necessary to simulate the rear of a bus in some scenarios, only a target object composed of the third section 6 of the vehicle body inflatable model, the rear cover 93, the rear buffer shaping plate 7 and the reflective material component 8 is used for testing, such as straight-line auxiliary braking test. This can reduce the installation steps of components such as the first section 4 of the vehicle body inflatable model and the second section 5 of the vehicle body inflatable model, and improve the testing efficiency.

[0080] In this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0081] The shapes of the components in the accompanying drawings are schematic and may differ from their actual shapes. The drawings are only used to illustrate the principle of this utility model and are not intended to limit this utility model.

[0082] Although the present invention has been disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely exemplary and not intended to limit the application of the present invention. The scope of protection of the present invention is defined by the appended claims and may include various modifications, alterations, and equivalents made to the invention without departing from the scope and spirit of the present invention.

Claims

1. A target object for testing assisted driving of a bus, characterized in that, The target objects of the bus include: a front buffer shaping plate (1), a support plate (3), a first section of the body air mold (4), a second section of the body air mold (5), a third section of the body air mold (6), and an outer cover (9); The first section (4), the second section (5), and the third section (6) of the vehicle body inflatable model are arranged sequentially from the front to the rear of the vehicle. The rear end of the first section (4) is connected to the front end of the second section (5), and the rear end of the second section (5) is connected to the front end of the third section (6). The vehicle cover (9) is fitted over the outside of the overall structure formed by connecting the first section (4), the second section (5), and the third section (6). One side of the support plate (3) is connected to the front end of the first section (4), and the other side is connected to the front buffer shaping plate (1).

2. The bus target for assisted driving testing of a vehicle as described in claim 1, characterized in that, The first section (4) of the inflatable car body includes a left upright plate (41), a right upright plate (42), and an air column (43). The left upright plate (41) and the right upright plate (42) are symmetrically arranged on the left and right sides of the first section (4). There are nine air columns (43) in total. The nine air columns (43) are arranged in three rows and three columns between the left upright plate (41) and the right upright plate (42). The upper end of the left vertical plate (41) of the inflatable model is provided with a left vertical plate air conditioner protrusion (411), and the upper end of the right vertical plate (42) of the inflatable model is provided with a right vertical plate air conditioner protrusion (421). The left vertical plate air conditioner protrusion (411) and the right vertical plate air conditioner protrusion (421) are used to simulate the shape of the air conditioner above the bus.

3. The bus target for assisted driving testing as described in claim 1, characterized in that, The first section (4) of the inflatable car body has symmetrically arranged front wheel cone pre-drilled holes (44) on both sides. The front wheel cone pre-drilled holes (44) are located in the lower half of the first section (4) of the inflatable car body near the front edge. The front wheel cone pre-drilled holes (44) are used to install the metal reflective cone wrapped with external foam.

4. The bus target for assisted driving testing as described in claim 1, characterized in that, The second section (5) of the inflatable car body includes a left upright plate (51), a right upright plate (52), and air columns (53). The left upright plate (51) and the right upright plate (52) are symmetrically arranged on the left and right sides of the first section (4) of the inflatable car body. There are nine air columns (53) in total. The nine air columns (53) are arranged in three rows and three columns between the left upright plate (51) and the right upright plate (52).

5. The bus target for testing assisted driving of a vehicle as described in claim 1, characterized in that, The second section (5) of the inflatable car body has symmetrically arranged rear wheel cone pre-drilled holes (54) on both sides. The rear wheel cone pre-drilled holes (54) are located in the lower half of the second section (5) of the inflatable car body near the front edge. The rear wheel cone pre-drilled holes (54) are used to install the metal reflective cone wrapped with external foam.

6. The bus target for testing assisted driving of a vehicle as described in claim 1, characterized in that, The third section (6) of the inflatable car body includes a front upright plate (61), a rear upright plate (62), and air columns (63). The front upright plate (61) and the rear upright plate (62) are symmetrically arranged on the front and rear sides of the third section (6). There are six air columns (63) in total. The six air columns (43) are arranged in two rows and three columns between the front upright plate (61) and the rear upright plate (62).

7. The bus target for assisted driving testing as described in claim 1, characterized in that, The vehicle cover (9) includes a front cover (91), a middle cover (92) and a rear cover (93). The rear edge of the front cover (91) is connected to the front edge of the middle cover (92), and the rear edge of the middle cover (92) is connected to the front edge of the rear cover (93). The front cover (91) is used to wrap the first section (4) of the vehicle body inflatable, the middle cover (92) is used to wrap the second section (5) of the vehicle body inflatable, and the rear cover (93) is used to wrap the third section (6) of the vehicle body inflatable.

8. The bus target for testing assisted driving of a vehicle as described in claim 2, characterized in that, The support plate (3) includes an upper support plate (31) and a lower support plate (32). The upper support plate (31) is located in the upper half of the front end of the first section (4) of the inflatable car body, and the left and right ends of the upper support plate (31) are respectively connected to the upper half of the left upright plate (41) and the right upright plate (42) of the inflatable car body. The lower support plate (32) is located in the lower half of the front end of the first section (4) of the inflatable car body, and the left and right ends of the lower support plate (32) are respectively connected to the lower half of the left upright plate (41) and the right upright plate (42) of the inflatable car body. The front buffer shaping plate (1) includes a front buffer shaping upper plate (11) and a front buffer shaping lower plate (12). The front buffer shaping upper plate (11) is fixed on the supporting upper plate (31), and the front buffer shaping lower plate (12) is fixed on the supporting lower plate (32).

9. The bus target for testing assisted driving of a vehicle as described in claim 1, characterized in that, The bus target also includes a reflective material component (8), which is made of aluminum foil composite fabric and is disposed around the lower half of the bus target.

10. The bus target for testing assisted driving of a vehicle as described in claim 8, characterized in that, The target objects of the bus also include rearview mirror styling components (2) and rear buffer styling panels (7); The rearview mirror styling assembly (2) includes a left rearview mirror (21) and a right rearview mirror (22), which are respectively symmetrically arranged on the left and right sides of the front bumper styling plate (11) by elastic ropes; The rear buffer molding plate (7) is fixed to the lower half of the third section (6) of the vehicle body inflatable model and is used to simulate the shape of the rear of the bus.

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