A physical safety braking power-off system and its working method

Abstract

This invention relates to the field of vehicle safety technology, and more particularly to a physical safety braking power-off system and its operating method. The system includes a power-off system and a braking system. The power-off system includes a connector, a high-voltage connection terminal, and a fuse. The connector has a sliding cavity. The high-voltage connection terminal is used to connect to a battery and is slidably mounted within the sliding cavity, tending to move inwards towards the connector. The fuse is inserted through the sliding cavity and prevents the high-voltage connection terminal from moving inwards. The braking system includes a cable, a caliper arm, and a caliper. The cable is connected to the fuse and is also connected to the upper end of the caliper arm. The caliper is mounted on the lower end of the caliper arm, and the caliper clamps both sides of the brake disc. This invention effectively avoids the problem of traditional intelligent vehicles being unable to take timely emergency measures when a malfunction occurs, ensuring the safety of the driver and passengers.

Description

Technical Field

[0001] This invention relates to the field of vehicle safety technology, and in particular to a physical safety brake power-off system and its operating method. Background Technology

[0002] Currently, new energy electric intelligent vehicles generally employ software-based intelligent control to handle vehicle power-off and braking in emergency situations. The electronic control system sends a braking signal, which is transmitted to the brake calipers via low-voltage lines, causing them to execute the braking action. These systems rely on the normal operation of the vehicle's overall electronic control system, achieving braking through electronic signal transmission and execution. However, this software-dependent control method cannot guarantee safe power-off and braking when the system malfunctions.

[0003] The main problems with existing technologies include:

[0004] 1. When the software architecture crashes or malfunctions, it cannot guarantee the safe power-off and braking of the vehicle.

[0005] 2. There is a lack of mechanisms to intervene in vehicle control through purely physical means in the event of system failure.

[0006] 3. The existing security control logic relies entirely on the normal operation of the software framework and does not take into account contingency measures in case of software architecture failure. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a physical safety braking power-off system, particularly for new energy electric intelligent vehicles in the event of intelligent control failure. In the intelligent state of the vehicle, when the vehicle's intelligent system malfunctions, such as software architecture crashes or erroneous operations, how can human intervention be used to achieve emergency control of the vehicle, including cutting off high-voltage power and implementing emergency braking, to ensure the safety of the driver and passengers?

[0008] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0009] A physical safety braking power-off system includes: a power-off system and a braking system; the power-off system includes a connector, a high-voltage connection terminal, and a safety bolt; the connector has a sliding cavity; the high-voltage connection terminal is used to connect to a battery, is slidably installed in the sliding cavity and has a tendency to move inwards from the connector; the safety bolt is inserted through the sliding cavity and can prevent the high-voltage connection terminal from moving inwards; the braking system includes a cable, a caliper arm, and a caliper; the cable is connected to the safety bolt and is connected to the upper end of the caliper arm; the caliper is installed at the lower end of the caliper arm and clamps both sides of the brake disc.

[0010] Optionally, the connector has a base, and a positioning plug for positioning and inserting into the center of the base is provided, and the positioning plug has the sliding cavity inside.

[0011] Optionally, the positioning plug is provided with a mounting base, the high-voltage connection terminal is mounted on the outer end face of the mounting base, and an inner limit rail is provided on the inner side of the positioning plug, and the mounting base is slidably mounted on the inner limit rail.

[0012] Optionally, a spring is installed inside the sliding cavity, with one end of the spring connected to the inner end face of the mounting base and the other end of the spring connected to the inner side wall of the connector.

[0013] Optionally, a high-voltage wire is also installed inside the sliding cavity. The high-voltage wire is connected to a high-voltage connection terminal, and the high-voltage wire has a bending area and an insulating sleeve on its outer side.

[0014] Optionally, the positioning plug is equipped with a positioning pin, and the mounting base is provided with a limiting groove. The limiting groove is triangular, and the positioning pin can be inserted into the limiting groove to restrict the mounting base from moving outward.

[0015] Optionally, the pull cable is a steel wire, which is inserted into a tightening tube. The lower end of the tightening tube has a tightening hole. After the steel wire passes through the tightening hole, it splits into two and is connected to the upper end of the caliper arm.

[0016] Optionally, the caliper arm includes a left tightening arm and a right tightening arm, the middle parts of which are rotatably connected by a movable shaft, which is mounted on a fixed bracket.

[0017] Optionally, the steel wire is connected to the upper ends of the left and right tensioning arms respectively, the lower end of the left tensioning arm is equipped with a left caliper, the lower end of the right tensioning arm is equipped with a right caliper, and the left and right calipers are respectively clamped on both sides of the brake disc.

[0018] This invention also provides a method for operating the physical safety braking power-off system as described above, comprising: pulling the cable to move the safety bolt upward, the high-voltage connection terminal sliding along the sliding cavity into the inside of the connector, disconnecting the connection between the high-voltage connection terminal and the battery, thereby achieving power off; pulling the cable to pull the upper end of the caliper arm, the lower end of the caliper arm tightening, the caliper clamping on the brake disc, thereby achieving braking.

[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0020] The physical safety braking power-off system of this invention comprises two main systems: a power-off system and a braking system. The connector has a sliding cavity to accommodate a high-voltage connection terminal. The high-voltage connection terminal is connected to the battery and tends to slide inwards from the connector. A safety bolt passes through the sliding cavity and prevents the high-voltage connection terminal from sliding inwards. When the driver pulls the cable, the safety bolt is pulled up, thereby activating the high-voltage connection terminal to move and cut off the power supply, achieving a physical disconnection of the high-voltage power. The cable is also connected to the upper end of the caliper arm, pushing the caliper arm downwards to tighten, causing the caliper to clamp the brake disc. By clamping the brake disc, the vehicle's drive shaft is effectively braked, ensuring the vehicle stops safely. By combining the high-voltage power-off function and the physical braking function, a solution is provided that allows for manual intervention to ensure safe stopping when the vehicle's intelligent system malfunctions or loses control. This solution effectively avoids the problem of traditional intelligent vehicles being unable to take timely emergency measures when malfunctions occur, ensuring the safety of the driver and passengers.

[0021] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the spacing or dimensions between components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0023] Figure 1 This is a side view of the power outage system provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal workings of the power-off system provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the braking system provided in an embodiment of the present invention;

[0026] In the diagram: 1. Safety bolt; 2. High-voltage connection terminal; 3. Base; 4. Positioning plug; 5. Mounting base; 6. Connector; 7. Inner limit rail; 8. Bending area; 9. Spring; 10. Insulating sleeve; 11. Tightening hole; 12. Tensioning end; 13. Force end; 14. Caliper arm; 15. Left tightening arm; 16. Left caliper; 17. Connection hole; 18. Movable shaft; 19. Brake disc and drive shaft connection point; 20. Original vehicle brake caliper; 21. Right tightening arm; 22. Right caliper; 23. Fixed bracket; 24. Limit pin; Detailed Implementation

[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Example 1

[0029] To address the technical problems mentioned in the background section, this embodiment proposes a physical safety braking power-off system. When the intelligent system of a new energy electric intelligent vehicle malfunctions, by adding a physical cut-off switch and a physical braking control system, the system can achieve high-voltage power-off and vehicle braking to a stop through purely physical intervention without interference from the vehicle system. This improves the vehicle's safety performance and protects the lives of the driver and passengers.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the physical safety brake power-off system includes a power-off system and a braking system. The power-off system includes a connector 6, a high-voltage connection terminal 2, and a safety bolt 1. The connector 6 has a sliding cavity. The high-voltage connection terminal 2 is used to connect to the battery. The high-voltage connection terminal 2 is slidably installed in the sliding cavity and has a tendency to move into the connector 6. The safety bolt 1 is inserted through the sliding cavity and can prevent the high-voltage connection terminal 2 from moving inward. The braking system includes a cable, a caliper arm 14, and a caliper. The cable is connected to the safety bolt 1 and is connected to the upper end of the caliper arm 14. The caliper is installed at the lower end of the caliper arm 14 and clamps both sides of the brake disc.

[0031] The physical safety braking power-off system of this invention comprises two main systems: a power-off system and a braking system. The power-off system mainly includes a connector 6, a high-voltage connection terminal 2, and a safety bolt 1. The connector 6 has a sliding cavity to accommodate the high-voltage connection terminal 2. The high-voltage connection terminal 2 is connected to the battery and tends to slide inwards from the connector 6. The safety bolt 1 passes through the sliding cavity and prevents the high-voltage connection terminal 2 from sliding inwards. The braking system mainly includes a cable, a caliper arm 14, and a caliper. When the driver pulls the cable, the safety bolt 1 is pulled up, thereby activating the high-voltage connection terminal 2 to move and cut off the power supply, achieving a physical disconnection of the high-voltage power. The cable is also connected to the upper end of the caliper arm 14, pushing the caliper arm 14 downwards to tighten it, causing the caliper to clamp the brake disc. By clamping the brake disc with the caliper, the vehicle's drive shaft is effectively braked, ensuring the vehicle stops safely.

[0032] The connector 6 has a base 3 inside, and a positioning plug 4 for positioning and plugging into the battery is provided in the middle of the base 3. The positioning plug 4 has the sliding cavity inside.

[0033] The design of the positioning plug 4 ensures the accuracy and stability of the connection between the high-voltage connection terminal 2 and the battery, preventing power connection failure due to improper insertion. Through the sliding cavity within the positioning plug 4, the high-voltage connection terminal 2 can move along the sliding cavity when power is off, disconnecting from the battery and achieving the purpose of power disconnection. The structure of the positioning plug 4 also helps guide the high-voltage connection terminal 2 to maintain the correct movement trajectory during sliding, ensuring the reliability and safety of the system. The technical effect of this design is to precisely position and move the high-voltage connection terminal 2 by adding the positioning plug 4, thereby improving the stability of the system during power disconnection.

[0034] The positioning plug 4 has a mounting base 5 inside, and the high-voltage connection terminal 2 is mounted on the outer end face of the mounting base 5. An inner limiting rail 7 is provided on the inner side of the positioning plug 4, and the mounting base 5 is slidably mounted on the inner limiting rail 7. The design of the mounting base 5 ensures that the high-voltage connection terminal 2 slides precisely and stably into the plug 6 during power-off, while the inner limiting rail 7 ensures that the high-voltage connection terminal 2 does not disengage from the rail or shift during operation. Through this design, the high-voltage connection terminal 2 can stably disconnect from the battery when the user triggers a power-off operation, thereby ensuring a complete disconnection of the high-voltage power supply and preventing risks such as electrical short circuits in the system.

[0035] A spring 9 is installed inside the sliding cavity. One end of the spring 9 is connected to the inner end face of the mounting base 5, and the other end is connected to the inner side wall of the connector 6. The function of the spring 9 is to pull the mounting base 5 and its high-voltage connection terminal 2 along the sliding cavity through elastic force. Through the action of the spring 9, the high-voltage connection terminal 2 can quickly disconnect from the battery, reducing the delay in the power-off process.

[0036] A high-voltage wire is also installed within the sliding cavity. This high-voltage wire is connected to the high-voltage connection terminal 2. The high-voltage wire has a bending area 8 and an insulating sleeve 10 on its outer side. The bending area 8 protects the wire, preventing short circuits or breakage due to excessive bending. The insulating sleeve 10 further enhances electrical safety, preventing current leakage or electric shock risks during power outages. This design strengthens the electrical safety of the entire power-off system, ensuring the high-voltage wire remains insulated during power outages, preventing electrical faults caused by wire damage, and further improving vehicle safety in emergency situations.

[0037] A positioning pin is installed on the positioning plug 4, and a limiting groove is provided on the mounting base 5. The limiting groove is triangular, and the positioning pin can be inserted into the limiting groove. Figure 2 As shown, the triangular limiting groove does not restrict the mounting base 5 from sliding inward, but only restricts the mounting base 5 from moving outward, preventing the high-voltage connection terminal 2 from contacting the battery connector when it elastically rebounds after power failure, thus ensuring that the connection between the battery and the high-voltage connection terminal 2 can be stably and reliably disconnected.

[0038] like Figure 3 As shown, the pull cable is a steel wire that passes through a tightening tube. The lower end of the tightening tube has a tightening hole 11. After exiting the tightening hole 11, the steel wire splits into two and connects to the upper end of the caliper arm 14. The use of a steel wire allows it to withstand significant tensile force, thus ensuring effective control of the caliper arm 14 during pulling. The design of the tightening tube and tightening hole 11 provides a precise adjustment mechanism during cable pulling, making the movement of the caliper arm 14 more precise and controllable. The tension of the steel wire directly controls the movement of the caliper arm 14, thereby achieving the purpose of the caliper clamping the brake disc. This design enables the physical braking system to achieve effective braking control through mechanical means when the intelligent system fails.

[0039] The caliper arm 14 includes a left tightening arm 15 and a right tightening arm 21, which are rotatably connected at their midpoints by a movable shaft 18 mounted on a fixed bracket 23. The movable shaft 18 provides the caliper arm 14 with rotatability, allowing the caliper to evenly clamp the brake disc when the cable is pulled. This design provides a balancing mechanism, ensuring that the calipers on both sides move synchronously when the cable is pulled, avoiding over- or under-braking on one side, thus ensuring the uniformity and effectiveness of the braking system. The movable shaft 18, mounted on the fixed bracket 23, ensures that the movement of the caliper arm 14 is constrained by the designed trajectory, preventing caliper malfunction due to improper movement.

[0040] The steel wires are connected to the upper ends of the left tightening arm 15 and the right tightening arm 21 respectively. The lower end of the left tightening arm 15 is equipped with a left caliper 16, and the lower end of the right tightening arm 21 is equipped with a right caliper 22. The left caliper 16 and the right caliper 22 are respectively clamped on both sides of the brake disc.

[0041] When the cable pulls caliper arm 14, the caliper clamps the brake disc, locking the vehicle's drive shaft and bringing the vehicle to a stop. This design ensures strong braking force from the caliper arm 14 and the caliper, allowing the entire braking process to be completed quickly and stably. To prevent the vehicle from overturning during emergency braking, the emergency stop sequence is as follows: after pulling the emergency stop switch, the high-voltage power supply to the vehicle is first cut off via the switch-controlled drive-by, allowing the vehicle to coast in a powerless state. The drive-by-wire then transmits the signal to the braking system, braking the brake discs to bring the vehicle to a smooth stop. The driver can repeatedly pull the emergency stop switch to simulate ABS braking control until the vehicle comes to a smooth stop.

[0042] In summary, by pulling the emergency pull ring inside the vehicle, the power line connection to the high-voltage battery is cut off simultaneously. At the same time, by pulling the cable, the vehicle's brake discs are applied, bringing the vehicle to a stop. In the event of a power system malfunction in a new energy vehicle, and without interference from the overall vehicle system, this purely physical intervention method achieves high-voltage power cutoff and vehicle braking to a stop.

[0043] Example 2

[0044] This embodiment provides a method for operating a physical safety braking power-off system as described in Embodiment 1, including:

[0045] Pulling the cable moves the safety bolt 1 upwards, causing the high-voltage connection terminal 2 to slide along the sliding cavity into the connector 6, disconnecting the high-voltage connection terminal 2 from the battery and achieving power cut-off. Then, pulling the cable pulls the upper end of the caliper arm 14, causing the lower end of the caliper arm 14 to tighten, and the caliper clamps onto the brake disc, achieving braking. This method enables comprehensive control of the vehicle's electrical and braking systems through physical intervention. In the event of a power system failure or intelligent braking system malfunction, this method provides a reliable alternative to ensure the vehicle can stop safely. This emergency control method combines power cut-off and braking operations, providing enhanced safety and reliability.

[0046] Specifically:

[0047] When a new energy intelligent vehicle experiences sudden acceleration and loss of control, the original brake caliper 20 will lose its proper braking signal transmission and execution capability due to a failure in the vehicle's electronic control system, resulting in a failure to brake. In this situation, the user can use the emergency pull ring connected to the steel cable inside the vehicle to perform self-rescue. By manually pulling up the emergency pull ring, high pressure can be applied to the entire vehicle, and braking effect can be achieved.

[0048] The operating method is as follows: the emergency pull ring is connected by a steel wire. After pulling it up, the safety bolt 1 is pulled up simultaneously. Under the tension of the spring 9, the mounting base 5 and the high-voltage connection terminal 2 inside the mounting base 5 are driven to move backward along the inner limit rail 7. Figure 2 The right side of the middle section moves, and simultaneously, the bending area 8, under the tension of the spring 9, opens and bends backward. Under the action of the insulating sleeve 10, the bent high-voltage wire is prevented from short-circuiting. At this time, the high-voltage connection terminal 2 is disconnected from the vehicle's high-voltage battery, thus achieving the purpose of cutting off the vehicle's high-voltage power supply. At the same time, the limit pin 24 is inserted into the limit groove to restrict the mounting base 5 to the position where the spring 9 collapses, preventing the high-voltage connection terminal 2 from contacting the battery connector.

[0049] The tensioning end 12 of the steel wire begins to tighten the steel wire through the tightening hole 11, driving the steel wire at the force end 13 to move through the connecting hole 17, which in turn drives the caliper arm 14. Through the transmission via the movable shaft 18, the braking force is transmitted to the left tightening arm 15 and the right tightening arm 21, pushing the left caliper 16 and the right caliper 22 to lock the brake disc. This locking method limits the driving force provided by the connection point 19 between the brake disc and the drive shaft, achieving the purpose of braking and stopping the out-of-control vehicle. The function of the fixed bracket 23 is to ensure that the braking system maintains its current state during physical braking intervention, ensuring safe and stable braking performance.

[0050] After braking is completed, the tension of the tightening wire is released. The wire is then loosened through the tightening hole 11, and the tension of the wire at the force end 13 is released. This loosens the caliper arm 14, and the left caliper 16 and right caliper 22 are released, thus releasing the brake disc from its locked state. By releasing the lock, the normal rotation of the brake disc and the drive shaft connection pad is restored, facilitating subsequent vehicle rescue and towing purposes.

[0051] By combining the addition of physical disconnect switches at high-voltage line connection points with the addition of physical braking control systems to the vehicle's brake discs, overall vehicle risk control can be achieved.

[0052] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A physical safety braking power-off system, characterized in that, include: Power outage system and braking system; The power-off system includes a connector, a high-voltage connection terminal, and a safety bolt. The connector has a sliding cavity. The high-voltage connection terminal is used to connect to the battery. The high-voltage connection terminal is slidably installed in the sliding cavity and has a tendency to move into the connector. The safety bolt is inserted through the sliding cavity and can prevent the high-voltage connection terminal from moving inward. The braking system includes a cable, a caliper arm, and a caliper. The cable is connected to the safety bolt and is also connected to the upper end of the caliper arm. The caliper is mounted on the lower end of the caliper arm and clamps both sides of the brake disc. The connector has a base, and a positioning plug for positioning and inserting into the battery is provided in the middle of the base. The positioning plug has the sliding cavity inside. The positioning plug is provided with a mounting base, and a spring is installed in the sliding cavity. One end of the spring is connected to the inner end face of the mounting base, and the other end of the spring is connected to the inner side wall of the plug.

2. The physical safety braking power-off system as described in claim 1, characterized in that, The high-voltage connection terminal is mounted on the outer end face of the mounting base, and an inner limit rail is provided on the inner side of the positioning plug. The mounting base is slidably mounted on the inner limit rail.

3. The physical safety braking power-off system as described in claim 1, characterized in that, A high-voltage wire is also installed inside the sliding cavity. The high-voltage wire is connected to a high-voltage connection terminal. The high-voltage wire has a bending area and an insulating sleeve on its outer side.

4. The physical safety braking power-off system as described in claim 1, characterized in that, The positioning plug is equipped with a positioning pin, and the mounting base is provided with a limiting groove. The limiting groove is triangular, and the positioning pin can be inserted into the limiting groove to restrict the mounting base from moving outward.

5. The physical safety braking power-off system as described in claim 1, characterized in that, The pull cable is a steel wire, which is threaded into a tightening tube. The lower end of the tightening tube has a tightening hole. After the steel wire passes through the tightening hole, it splits into two and is connected to the upper end of the caliper arm.

6. The physical safety braking power-off system as described in claim 5, characterized in that, The caliper arm includes a left tightening arm and a right tightening arm, the middle of which are rotatably connected by a movable shaft, which is mounted on a fixed bracket.

7. The physical safety braking power-off system as described in claim 6, characterized in that, The steel wires are connected to the upper ends of the left and right tensioning arms respectively. The lower end of the left tensioning arm is equipped with a left caliper, and the lower end of the right tensioning arm is equipped with a right caliper. The left and right calipers are respectively clamped on both sides of the brake disc.

8. A method for operating a physical safety braking power-off system as described in any one of claims 1-7, characterized in that, include: Pulling the cable moves the safety bolt upwards, causing the high-voltage connection terminal to slide along the sliding cavity into the connector, disconnecting the high-voltage connection terminal from the battery and thus cutting off the power. Pulling the cable pulls the upper end of the caliper arm, causing the lower end of the caliper arm to tighten, and the caliper clamps onto the brake disc, thus achieving braking.

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