Safety brake assist device in human-machine interaction of power system of autonomous vehicle

Abstract

The utility model belongs to the automatic driving safety braking auxiliary technical field, concretely relates to safety braking auxiliary device among automatic driving car power system man -machine interaction, including brake caliper shell, the side surface of brake caliper shell is installed with piston, and the output of piston and the inner wall of brake caliper shell is connected with brake block respectively, the both ends of two brake blocks are equipped with scraper respectively, the surface of scraper is equipped with two first perforation, and the inner wall of two first perforation is respectively penetrated and has a inserting rod, and two inserting rods are connected with brake block through dismouting subassembly, and the end of two inserting rods is connected with connecting plate, and the side surface of connecting plate is connected with spring strip of setting up in the surface of inserting rod. The utility model, when braking, piston drives brake block to move to the direction close to the brake disc, and brake block can drive scraper transverse motion when operating, and when scraper moves to the surface of brake disc, it is customized motion, and when brake block continues transverse motion, it is extruded spring strip through inserting rod and connecting plate, and when spring strip is extruded, it can press scraper on the surface of brake disc, so in the process of braking, the hard particles adhered on the surface of brake disc can be scraped down through scraper, so the scratch on the surface of brake disc due to the hard particles adhered in the process of braking clamp can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of autonomous driving safety braking assistance technology, specifically relating to a safety braking assistance device in the human-machine interaction of autonomous vehicle power systems. Background Technology

[0002] The human-machine interaction of autonomous vehicle powertrain systems aims to achieve efficient, safe, and comfortable information transmission and collaborative control between humans and autonomous driving systems. Safety braking assist devices, as a key component, can assist drivers or autonomous driving systems in braking operations under specific scenarios, improving driving safety.

[0003] In autonomous driving mode, the safety brake assist device works in conjunction with the autonomous driving system. When the autonomous driving system malfunctions or encounters complex situations, the safety brake assist device can intervene promptly to ensure vehicle safety. When braking is required, the driver depresses the brake pedal, which transmits brake fluid pressure to the wheel cylinders via the master cylinder. The pistons in the wheel cylinders move outward under hydraulic pressure, pushing the brake shoes to rotate around their support pins, causing the friction pads to press firmly against the inner surface of the rotating brake drum. The friction reduces the rotational speed of the brake drum, thus braking the wheels. When the brake pedal is released, the return spring pulls the brake shoes back to their original position, separating the friction pads from the brake drum, and the brakes are released.

[0004] Existing safety braking assist devices primarily rely on clamping the brake disc to achieve braking effects during vehicle operation. However, the environment in which the brake disc operates during actual driving is complex and variable. Various hard particles from the road surface adhere to the brake disc surface as the wheels rotate and airflow occurs. During braking, these hard particles generate intense friction and scratches against the brake disc surface as the braking device clamps the disc, easily leaving scratches of varying depths. Over time, these scratches cause the brake disc surface to become rough and uneven, damaging the overall structure and consequently affecting the normal performance and braking effect of the braking system. Utility Model Content

[0005] The purpose of this invention is to provide a safety braking assistance device for the human-machine interaction of the power system of autonomous vehicles. It aims to solve the problem that in the prior art, hard particles adhere to the surface of the brake disc as the wheel rotates and the air flows. When braking, these hard particles will cause severe friction and scratches on the surface of the brake disc during the braking operation, which can easily leave scratches of varying depths on the surface of the brake disc. The surface of the brake disc will become rough and uneven due to these scratches, and the overall structure will also be damaged, thus affecting the normal performance and braking effect of the braking device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety braking assistance device in the human-machine interaction of an autonomous vehicle power system, comprising a brake caliper housing, a piston mounted on the side surface of the brake caliper housing, and brake blocks connected to the output end of the piston and the inner wall of the brake caliper housing, respectively.

[0007] Each of the two brake blocks has a scraper on its side surface at both ends. The scraper has two first through holes on its surface. A rod passes through the inner wall of each of the two first through holes. The two rods are connected to the brake blocks through a disassembly assembly. A connecting plate is connected to the ends of the two rods. A spring strip is sleeved on the surface of the rod on the side surface of the connecting plate.

[0008] As a preferred safety braking assist device in the human-machine interaction of the autonomous vehicle power system of this utility model, the scraper is positioned on one side near the center of the two brake blocks, which extends beyond the innermost position of the connected scraper.

[0009] As a preferred safety braking assistance device in the human-machine interaction of the autonomous vehicle power system of this utility model, the first through hole corresponds one-to-one with the position of the insertion rod, and the diameter of the first through hole matches that of the insertion rod.

[0010] As a preferred safety braking assistance device in the human-machine interaction of the autonomous vehicle power system of this utility model, the disassembly and assembly component includes a slot, a fixing hole, a threaded hole and a screw. The surface of the brake block is provided with a slot that matches the diameter of the insert rod, and the surface of the insert rod is provided with a fixing hole.

[0011] As a preferred safety braking auxiliary device in the human-machine interaction of the autonomous vehicle power system of this utility model, the brake block has a threaded hole with two slots through the end inside, and a screw of matching size is inserted into the threaded hole.

[0012] As a preferred safety braking assist device in the human-machine interaction of the autonomous vehicle power system of this utility model, after the connecting plate drives the two plug rods to insert into the deepest part of the two slots, the center line of the fixing hole on the surface of the two plug rods coincides with the center line of the threaded hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, during braking, the piston drives the brake block to move closer to the brake disc. As the brake block moves, it can drive the scraper to move laterally. When the scraper moves to the surface of the brake disc, it moves in a controlled motion. As the brake block continues to move laterally, it squeezes the spring strip through the insert rod and connecting plate. When the spring strip is squeezed, it can press the scraper onto the surface of the brake disc. In this way, during braking, the scraper can scrape off the hard particles adhering to the surface of the brake disc, thereby avoiding scratches on the surface of the brake disc caused by the hard particles adhering to it during the braking clamping process, and avoiding damage to the brake disc that affects the braking effect.

[0015] In this invention, when the scraper is worn, the screw can be rotated. When the screw rotates inside the threaded hole, it can move outward. When the screw moves to the outside of the threaded hole, the connecting plate can be used to pull the insert rod out of the slot, thus making it easy to remove the scraper from the surface of the insert rod and replace it. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a front view of the connection structure between the brake block and the scraper of this utility model;

[0020] Figure 4 This is a rear view of the connection structure between the brake block and the scraper of this utility model;

[0021] Figure 5 This is a partial sectional view of the connection structure between the brake block and the scraper of this utility model;

[0022] Figure 6 This is an exploded view of the connection structure between the brake block and the scraper of this utility model.

[0023] In the diagram: 1. Brake caliper housing; 2. Piston; 3. Brake block; 4. Scraper; 5. First through hole; 6. Insert rod; 7. Connecting plate; 8. Spring bar; 9. Assembly / disassembly assembly; 901. Slot; 902. Fixing hole; 903. Threaded hole; 904. Screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 The present invention provides the following technical solution: a safety braking auxiliary device in the human-machine interaction of the power system of an autonomous vehicle, including a brake caliper housing 1, a piston 2 installed on the side surface of the brake caliper housing 1, and a brake block 3 connected to the output end of the piston 2 and the inner wall of the brake caliper housing 1 respectively.

[0026] Two brake blocks 3 are provided with scrapers 4 on their respective side surfaces at both ends. Two first through holes 5 are opened on the surface of the scraper 4. A rod 6 passes through the inner wall of each of the two first through holes 5. The two rods 6 are connected to the brake blocks 3 through the disassembly and assembly assembly 9. A connecting plate 7 is connected to the end of the two rods 6. A spring strip 8 is sleeved on the surface of the rod 6 and connected to the side surface of the connecting plate 7.

[0027] The brake fluid pressure is transmitted to the brake wheel cylinder through the master cylinder. The piston 2 in the brake wheel cylinder moves laterally under the action of hydraulic pressure. When the piston 2 moves laterally, it pushes the brake block 3 to move laterally, so that the brake block 3 presses against the inner surface of the rotating brake drum. The friction reduces the speed of the brake drum, thereby achieving wheel braking.

[0028] Preferably, the scraper 4 is positioned on one side near the center of the two brake blocks 3, extending beyond the innermost position of the connected scraper 4.

[0029] In actual use, when the piston 2 is running, it pushes the brake block 3 to move laterally. At this time, the brake block 3 can drive the scraper 4 to move laterally. The scraper 4 can first move to the surface of the brake pad.

[0030] Preferably, the positions of the first perforation 5 and the insertion rod 6 correspond one-to-one, and the diameter of the first perforation 5 matches that of the insertion rod 6.

[0031] In practical use, when the scraper 4 is subjected to force, it can slide on the surface of the insert rod 6 through the first through hole 5, so that the scraper 4 can move axially on the surface of the insert rod 6 when it is squeezed.

[0032] Preferably, the disassembly and assembly component 9 includes a slot 901, a fixing hole 902, a threaded hole 903 and a screw 904. The surface of the brake block 3 is provided with a slot 901 that matches the diameter of the insert rod 6, and the surface of the insert rod 6 is provided with a fixing hole 902.

[0033] Preferably, the brake block 3 has a threaded hole 903 that passes through two slots 901 at the end, and a screw 904 of matching size is inserted into the threaded hole 903.

[0034] In practical use, the connecting plate 7 can drive the two plug rods 6 on its surface to be inserted into the two slots 901, which facilitates the subsequent fixed installation of the two plug rods 6.

[0035] Preferably, after the connecting plate 7 drives the two insert rods 6 to insert into the deepest part of the two slots 901, the center line of the fixing hole 902 on the surface of the two insert rods 6 coincides with the center line of the threaded hole 903.

[0036] In practical use, when the screw 904 rotates inside the threaded hole 903, it can move axially inward. When the screw 904 moves axially, it can be inserted into the fixing hole 902 of the insert rod 6, thus fixing the insert rod 6 and enabling the installation of the insert rod 6, spring strip 8 and scraper 4 connected to it.

[0037] Working principle: During braking, piston 2 drives brake block 3 to move closer to brake disc. When brake block 3 moves, it can drive scraper 4 to move laterally. When scraper 4 moves to the surface of brake disc, it moves laterally. When brake block 3 continues to move laterally, it squeezes spring strip 8 through insert rod 6 and connecting plate 7. When spring strip 8 is squeezed, it can press scraper 4 onto the surface of brake disc. In this way, during braking, hard particles adhering to the surface of brake disc can be scraped off by scraper 4.

[0038] When the scraper 4 is worn, the screw 904 can be rotated. When the screw 904 rotates inside the threaded hole 903, it can move outward. When the screw 904 moves to the outside of the threaded hole 903, the insertion rod 6 can be pulled out from the slot 901 through the connecting plate 7. At this time, the scraper 4 can be removed from the surface of the insertion rod 6 and replaced. After replacing the scraper 4, the two insertion rods 6 are inserted into the slot 901 through the connecting plate 7. Then the screw 904 can be rotated in the opposite direction. When the screw 904 rotates in the opposite direction inside the threaded hole 903, it can move axially inward. When the screw 904 moves axially, it can penetrate the inside of the fixing hole 902, thus fixing the position of the insertion rod 6.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety braking assistant device in the human-machine interaction of the power system of an autonomous vehicle, comprising a brake caliper shell (1), characterized in that: A piston (2) is installed on the side surface of the brake caliper housing (1), and a brake block (3) is connected to the output end of the piston (2) and the inner wall of the brake caliper housing (1). Each of the two brake blocks (3) has a scraper (4) on its side surface. The scraper (4) has two first through holes (5) on its surface. Each of the two first through holes (5) has a rod (6) passing through its inner wall. The two rods (6) are connected to the brake blocks (3) by a disassembly assembly (9). The ends of the two rods (6) are connected to a connecting plate (7). The side surface of the connecting plate (7) is connected to a spring strip (8) sleeved on the surface of the rod (6).

2. The safety braking assistant in human-machine interaction of automatic driving car power system according to claim 1, characterized in that: The scraper (4) is positioned on one side near the center of the two brake blocks (3) beyond the innermost position of the connected scraper (4).

3. The safety braking assistant in human-machine interaction of automatic driving car power system according to claim 1, characterized in that: The first perforation (5) corresponds to the position of the insertion rod (6) one by one, and the diameter of the first perforation (5) matches that of the insertion rod (6).

4. The safety braking assistant in human-machine interaction of automatic driving car power system according to claim 1, characterized in that: The disassembly and assembly assembly (9) includes a slot (901), a fixing hole (902), a threaded hole (903) and a screw (904). The surface of the brake block (3) is provided with a slot (901) that matches the diameter of the insert rod (6), and the surface of the insert rod (6) is provided with a fixing hole (902).

5. The safety braking assistance device in the human-machine interaction of the power system of an autonomous vehicle according to claim 4, characterized in that: The brake block (3) has a threaded hole (903) that passes through two slots (901) at the end, and a screw (904) of matching size is inserted into the threaded hole (903).

6. The safety braking assistant in human-machine interaction of automatic driving car power system according to claim 5, characterized in that: After the connecting plate (7) drives the two insert rods (6) to be inserted into the deepest part of the two slots (901), the center line of the fixing hole (902) on the surface of the two insert rods (6) coincides with the center line of the threaded hole (903).

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