Anti-collision beam for unmanned vehicle

Abstract

The utility model discloses an anti-collision beam for a driverless vehicle. The anti-collision beam comprises a safety contact edge, an anti-collision cross beam, a standard component, a spring, a pressure sensor and an outer sleeve, the anti-collision cross beam comprises an arc-shaped strip, two supporting beams are symmetrically welded to the arc-shaped strip, strip-shaped holes are formed in the tops of the supporting beams, the standard parts are screws and nut suites, the screws penetrate through the strip-shaped holes and are fixed to the tops of the supporting beams to form a base for spring installation, the tops of the supporting beams are sleeved with springs, and one ends of the springs abut against the base. A clamping ball is arranged at the lower end of the outer sleeve and can be clamped into the strip-shaped hole. When the vehicle collides, the safety contact edge and the pressure sensor transmit signals to the VCU of the whole vehicle, the VCU sends power-off control to the driving motor and issues a braking instruction, and the purpose of reducing damage to the vehicle and pedestrians is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned vehicles, and in particular relates to an anti-collision beam for unmanned vehicles. Background Art

[0002] With the rapid development of science and technology, low-speed intelligent unmanned driving technology has become increasingly mature and widely used in urban transportation, logistics, agriculture and other fields. Unmanned vehicles perceive the surrounding environment through sensors, cameras, radars and other equipment, and use advanced algorithms to make autonomous decisions and control, thus achieving automatic driving at low speeds or in parking states. The application of this technology not only improves traffic efficiency and reduces driver stress, but also effectively reduces the risk of collision between vehicles.

[0003] However, in the development of driverless vehicles, safety issues have always been the focus of attention. Especially in complex traffic environments, driverless vehicles face various potential collision risks. Therefore, as an important component to protect the safety of pedestrians and vehicles, the performance and design of vehicle anti-collision beams are particularly important.

[0004] The anti-collision beam in the prior art is usually made of metal or alloy materials and has certain anti-collision performance. However, there are still some shortcomings:

[0005] First, when existing anti-collision beams are subjected to strong impacts, it is often difficult to effectively absorb and disperse the impact energy, resulting in greater damage to pedestrians and vehicles. Although some anti-collision beams adopt an energy absorption design, their energy absorption effect is still limited and cannot meet increasingly stringent safety requirements. Secondly, the structural design of existing anti-collision beams often ignores the need for lightweighting. Although the use of high-strength materials can improve impact resistance, it also increases the weight of the anti-collision beam, which is not conducive to improving the overall performance of the vehicle. In addition, the existing anti-collision beams have defects in power-off control. When an unmanned vehicle fails or faces a potential collision risk, there is a lack of an effective power-off control mechanism to prevent power failures from exacerbating the consequences of the accident. Utility Model Content

[0006] In order to overcome the shortcomings of the anti-collision beam in the prior art, the utility model provides an anti-collision beam for an unmanned vehicle, comprising a safety touch edge 1, an anti-collision beam 2, a standard part 3, a spring 4, a pressure sensor 5 and an outer sleeve 6;

[0007] The anti-collision beam 2 includes an arc-shaped bar, on which two supporting beams are symmetrically welded, and a strip hole is opened on the top of the supporting beam. The standard part 3 is a screw and nut kit, and the screw passes through the strip hole and is fixed on the top of the supporting beam to form a base for installing the spring 4. The spring 4 is sleeved on the top of the supporting beam and one end rests on the base. A pressure sensor 5 is provided at the other end of the spring 4, and a card bead is provided at the lower end of the outer sleeve 6, which can be inserted into the strip hole.

[0008] Furthermore, the safety touch edge 1 is a rubber or plastic hose, which is sleeved on the outer circumference of the anti-collision beam 2.

[0009] Furthermore, an angle bracket is provided at the connection between the arc-shaped bar and the supporting beam, so that the connection between the arc-shaped bar and the supporting beam is more stable.

[0010] Furthermore, the anti-collision beam 2 can slide in the outer sleeve 6, and can compress the spring 4 after being hit. When the spring force of the spring 4 reaches a certain range of values, the pressure sensor 5 will be triggered to provide a signal to the controller.

[0011] The beneficial effects of the utility model are:

[0012] The anti-collision beam is made of high-strength material and has excellent anti-collision performance. At the same time, by optimizing the design of the spring energy absorption structure, it can absorb more energy during collision and reduce damage to pedestrians and vehicles.

[0013] The utility model also introduces a power-off control function. When the vehicle fails or faces a potential collision risk, the anti-collision beam has a power-off safety redundant structure, which can transmit signals in time, cut off the power supply of the drive motor, reduce damage to personnel and vehicles, and improve the safety of unmanned vehicles. It provides strong technical support for the development of unmanned driving technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an anti-collision beam for an unmanned vehicle of the utility model;

[0015] Figure 2 The utility model is a schematic diagram of an anti-collision beam for an unmanned vehicle being assembled on a vehicle frame.

[0016] Figure numerals: 1. safety touch edge, 2. anti-collision beam, 3. standard parts, 4. spring, 5. pressure sensor, 6. outer sleeve, 7. anti-collision beam assembly, 8. frame. DETAILED DESCRIPTION

[0017] like Figure 1 As shown, an anti-collision beam for an unmanned vehicle includes a safety touch edge 1, an anti-collision beam 2, a standard part 3, a spring 4, a pressure sensor 5 and an outer sleeve 6;

[0018] The anti-collision beam 2 includes an arc-shaped bar, on which two supporting beams are symmetrically welded, and a strip hole is opened on the top of the supporting beam. The standard part 3 is a screw and nut kit, and the screw passes through the strip hole and is fixed on the top of the supporting beam to form a base for installing the spring 4. The spring 4 is sleeved on the top of the supporting beam and one end rests on the base. A pressure sensor 5 is provided at the other end of the spring 4, and a card bead is provided at the lower end of the outer sleeve 6, which can be inserted into the strip hole; finally, the anti-collision beam assembly 7 is formed and installed on the frame 8.

[0019] Safety touch edge 1 is normally open. When the vehicle collides, the safety touch edge 1 signal is triggered and transmitted to the controller to control the drive motor to stop working.

[0020] The following are three specific usage scenarios of anti-collision beams:

[0021] The first scenario: When the safety touch edge 1 hits an obstacle, such as a pillar, a tree, a wall, etc., as long as any part of the safety touch edge 1 is deformed to a certain extent, the safety touch edge 1 will be turned on. After the vehicle VCU receives the conduction signal, it will immediately stop the vehicle drive motor and perform emergency braking to reduce the possibility of further injury to the vehicle or personnel.

[0022] The second scenario: When the obstacle that the safety touch edge 1 hits is relatively large, or its shape is similar to that of the touch edge, the collision force is relatively uniform and is not enough to cause the safety touch edge 1 to conduct. At this time, the anti-collision beam 2 will move inward along the outer sleeve 6, and the spring 4 will be compressed. At this time, part of the collision force is converted into potential energy by the spring 4, reducing the damage to the vehicle or pedestrian caused by the collision.

[0023] The third scenario: When the anti-collision beam 2 continues to move along the outer sleeve 6, the spring 4 continues to be compressed, and the pressure of the spring 4 on the pressure sensor 5 becomes greater and greater. When the pressure sensor 5 reaches a certain limit, the vehicle VCU detects this signal, which will also stop the power of the drive motor immediately and issue a braking command to stop the vehicle.

[0024] Although the embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision beam for an unmanned vehicle, characterized in that: It includes a safety touch edge (1), an anti-collision beam (2), a standard part (3), a spring (4), a pressure sensor (5) and an outer sleeve (6); The anti-collision beam (2) comprises an arc-shaped bar, two supporting beams are symmetrically welded on the arc-shaped bar, a strip-shaped hole is opened on the top of the supporting beam, the standard part (3) is a screw and nut set, the screw passes through the strip-shaped hole and is fixed on the top of the supporting beam to form a base for installing the spring (4), the spring (4) is sleeved on the top of the supporting beam and one end is against the base, the other end of the spring (4) is provided with a pressure sensor (5), and the lower end of the outer sleeve (6) is provided with a card bead that can be inserted into the strip hole.

2. The anti-collision beam for an unmanned vehicle according to claim 1, characterized in that: The safety touch edge (1) is a rubber or plastic hose and is sleeved on the outer circumference of the anti-collision beam (2).

3. The anti-collision beam for an unmanned vehicle according to claim 1, characterized in that: Angle brackets are provided at the connection points between the arc-shaped strips and the supporting beams.

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