Physical safety brake power-off system and working method

Abstract

The invention relates to the technical field of vehicle safety, in particular to a physical safety brake power-off system and a working method. The system comprises a power-off system and a braking system. The power-off system comprises a connecting plug, a high-voltage connecting terminal and a safety catch, a sliding cavity is formed in the connecting plug, the high-voltage connecting terminal is used for being connected with a battery, the high-voltage connecting terminal is installed in the sliding cavity in a sliding mode and tends to move towards the interior of the connecting plug, and the safety catch penetrates through the sliding cavity in an inserted mode and can prevent the high-voltage connecting terminal from moving towards the interior; the brake system comprises a pull wire, a caliper arm and calipers, the pull wire is connected with the safety catch and connected to the upper end of the caliper arm, the calipers are installed at the lower end of the caliper arm, and the calipers are clamped on the two sides of the brake disc. The problem that emergency measures cannot be taken in time when a traditional intelligent vehicle breaks down can be effectively avoided, and the safety of a driver and passengers is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of vehicle safety technology, and in particular to a physical safety brake power-off system and a working method. Background Art

[0002] At present, new energy electric smart cars generally use software intelligent control to handle vehicle power-off and braking in emergency situations. The electronic control system sends a brake signal, which is transmitted to the brake caliper through a low-voltage line to enable it to perform the braking action. These systems rely on the normal operation of the vehicle's electronic control system and achieve braking through electronic signal transmission and execution. However, this software-dependent control method cannot guarantee the safe power-off and braking of the vehicle when the system fails.

[0003] The problems existing in the prior art mainly include:

[0004] 1. When the software architecture crashes or operates incorrectly, the vehicle's safe power-off and braking cannot be guaranteed.

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

[0006] 3. The existing security control logic is completely dependent on the normal operation of the software framework and does not take into account emergency measures when the software architecture fails. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the embodiments of the present invention is to provide a physical safety brake power-off system, especially a physical safety brake power-off system for new energy electric smart cars when the intelligent control fails. In the intelligent state of the vehicle, when the vehicle intelligent system is disordered, such as software architecture downtime or erroneous operation, how to achieve emergency control of the vehicle through human intervention, including cutting off the high-voltage power supply and implementing emergency braking, to ensure the safety of the driver and passengers.

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

[0009] A physical safety brake power-off system, comprising: a power-off system and a brake system; the power-off system comprises a plug connector, a high-voltage connection terminal and a safety pin, the plug connector has a sliding cavity, the high-voltage connection terminal is used to connect to a battery, the high-voltage connection terminal is slidably installed in the sliding cavity and has a tendency to move toward the inside of the plug connector, the safety pin is inserted through the sliding cavity and can hinder the high-voltage connection terminal from moving inward; the brake system comprises a pull wire, a caliper arm and a caliper, the pull wire is connected to the safety pin, and the pull wire is connected to the upper end of the caliper arm, the caliper is installed at the lower end of the caliper arm, and the caliper is clamped on both sides of the brake disc.

[0010] Optionally, the plug connector has a base inside, a positioning plug for positioning and plugging with the battery is arranged in the middle of the base, and the sliding cavity is arranged inside the positioning plug.

[0011] Optionally, a mounting seat is provided in the positioning plug, the high-voltage connection terminal is mounted on the outer end surface of the mounting seat, an inner limit track is provided on the inner side surface of the positioning plug, and the mounting seat is slidably mounted on the inner limit track.

[0012] Optionally, a spring is installed in the sliding cavity, one end of the spring is connected to the inner end surface of the mounting seat, and the other end of the spring is connected to the inner side wall of the plug connector.

[0013] Optionally, a high-voltage wire is also installed in the sliding cavity, the high-voltage wire is connected to the high-voltage connection terminal, the high-voltage wire has a bending area, and the outside of the high-voltage wire has an insulating sleeve.

[0014] Optionally, a positioning pin is installed on the positioning plug, and a limiting groove is provided on the mounting seat, the limiting groove is triangular, and the positioning pin can be inserted into the limiting groove to limit the mounting seat from moving outward.

[0015] Optionally, the pulling wire is a steel wire, which passes through a tightening tube, and a tightening hole is provided at the lower end of the tightening tube. After the steel wire passes through the tightening hole, it is divided into two and connected to the upper end of the caliper arm.

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

[0017] Optionally, the steel wire is respectively connected to the upper ends of the left tightening arm and the right tightening arm, the left caliper is installed at the lower end of the left tightening arm, and the right caliper is installed at the lower end of the right tightening arm, and the left caliper and the right caliper are respectively clamped on both sides of the brake disc.

[0018] An embodiment of the present invention also provides a working method of the physical safety brake power-off system as described above, including: pulling the safety pin upward with a pull wire, and the high-voltage connection terminal slides along the sliding cavity toward the inside of the plug connector, disconnecting the high-voltage connection terminal from the battery to achieve power off; pulling the upper end of the caliper arm with a pull wire, and the lower end of the caliper arm is tightened, and the caliper is clamped on the brake disc to achieve 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 brake power-off system of the present invention includes two main systems: a power-off system and a brake system. The plug connector has a sliding cavity for accommodating a high-voltage connection terminal. The high-voltage connection terminal is connected to the battery and has a tendency to slide into the plug connector. The safety pin runs through the sliding cavity and prevents the high-voltage connection terminal from sliding inward. When the driver pulls the pull wire, the safety pin will be pulled up, thereby activating the high-voltage connection terminal to move and cut off the power supply, thereby physically disconnecting the high-voltage power supply. The pull wire is also connected to the upper end of the caliper arm, pushing the caliper arm downward to tighten, driving the caliper to clamp the brake disc. By clamping the brake disc with the caliper, the drive shaft of the vehicle is effectively braked to ensure the safe parking of the vehicle. By combining the power-off and physical braking functions of the high-voltage power supply, a solution is provided that can ensure safe parking through manual intervention when the vehicle intelligent system fails or loses control. This solution can effectively avoid the problem that traditional intelligent vehicles cannot take emergency measures in time when a failure occurs, thereby ensuring the safety of drivers and passengers.

[0021] Advantages of additional aspects of the present invention will be given in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, the spacing or size between the components is exaggerated to show the positions of the components, and the schematic diagram is only used for illustration.

[0023] Figure 1 is a side view of a power-off system provided by an embodiment of the present invention;

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

[0025] Figure 3 is a schematic diagram of a brake system provided by an embodiment of the present invention;

[0026] In the figure: 1. Safety bolt; 2. High-voltage connection terminal; 3. Base; 4. Positioning plug; 5. Mounting seat; 6. Plug connector; 7. Inner limit track; 8. Bending area; 9. Spring; 10. Insulating sleeve; 11. Tightening hole; 12. Tightening end; 13. Force end; 14. Caliper arm; 15. Left tightening arm; 16. Left caliper; 17. Connecting hole; 18. Movable shaft; 19. Connection point between brake disc and drive shaft; 20. Original car brake caliper; 21. Right tightening arm; 22. Right caliper; 23. Fixed bracket; 24. Limit pin; DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Example 1

[0029] In order to solve the technical problems mentioned in the background technology, this embodiment proposes a physical safety brake power-off system. When the intelligent system of the new energy electric smart car is disordered, by adding a physical cut-off switch and a physical brake control system, the out-of-control vehicle can be powered off at high voltage and the whole vehicle can be braked to stop through pure physical intervention without being interfered by the whole vehicle system, thereby improving the safety performance of the vehicle and ensuring the life safety 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 brake system; the power-off system includes a plug connector 6, a high-voltage connection terminal 2 and a safety pin 1, the plug 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 toward the inside of the plug connector 6, the safety pin 1 is inserted through the sliding cavity and can hinder the high-voltage connection terminal 2 from moving inward; the brake system includes a pull wire, a caliper arm 14 and a caliper, the pull wire is connected to the safety pin 1, and the pull wire 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 the caliper is clamped on both sides of the brake disc.

[0031] The physical safety brake power-off system of the present invention includes two main systems: a power-off system and a brake system. The power-off system mainly includes a plug connector 6, a high-voltage connection terminal 2 and a safety pin 1, wherein the plug connector 6 has a sliding cavity for accommodating the high-voltage connection terminal 2. The high-voltage connection terminal 2 is connected to the battery and has a tendency to slide into the inside of the plug connector 6. The safety pin 1 runs through the sliding cavity and prevents the high-voltage connection terminal 2 from sliding inward. The brake system mainly includes a pull wire, a caliper arm 14 and a caliper. When the driver pulls the pull wire, the safety pin 1 will be pulled up, thereby activating the high-voltage connection terminal 2 to move and cut off the power supply, thereby physically disconnecting the high-voltage power supply. The pull wire is also connected to the upper end of the caliper arm 14, pushing the caliper arm 14 downward to tighten, driving the caliper to clamp the brake disc. By clamping the brake disc with the caliper, the drive shaft of the vehicle is effectively braked to ensure the safe parking of the vehicle.

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

[0033] The design of the positioning plug 4 can ensure the accuracy and stability of the connection between the high-voltage connection terminal 2 and the battery, and avoid power connection failure due to improper plugging. Through the sliding cavity in the positioning plug 4, the high-voltage connection terminal 2 can move along the sliding cavity when the power is off, disconnect from the battery, and achieve the purpose of power off. The structure of the positioning plug 4 also helps to guide the high-voltage connection terminal 2 to maintain the correct motion trajectory during the sliding process, ensuring the reliability and safety of the system. The technical effect of this design is to accurately locate the position and movement direction of the high-voltage connection terminal 2 by adding the positioning plug 4, thereby improving the stability of the system during power off.

[0034] A mounting seat 5 is provided inside the positioning plug 4, and the high-voltage connection terminal 2 is installed on the outer end surface of the mounting seat 5. An inner limit track 7 is provided on the inner side surface of the positioning plug 4, and the mounting seat 5 is slidably installed on the inner limit track 7. The design of the mounting seat 5 can ensure that the high-voltage connection terminal 2 slides accurately and stably into the plug connector 6 during the power-off process, while the inner limit track 7 ensures that the high-voltage connection terminal 2 does not deviate from the track or shift during the operation. Through this design, the high-voltage connection terminal 2 can be stably disconnected from the battery when the user triggers the power-off operation, thereby ensuring the 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 in the sliding cavity, one end of the spring 9 is connected to the inner end surface of the mounting seat 5, and the other end of the spring 9 is connected to the inner side wall of the plug connector 6. The function of the spring 9 is to pull the mounting seat 5 and the high-voltage connection terminal 2 thereon to move along the sliding cavity through elastic force. Through the action of the spring 9, the high-voltage connection terminal 2 can quickly complete the disconnection from the battery, reducing the delay in the power-off process.

[0036] A high-voltage wire is also installed in the sliding cavity, and the high-voltage wire is connected to the high-voltage connection terminal 2. The high-voltage wire has a bending area 8, and the outside of the high-voltage wire has an insulating sleeve 10. The bending area 8 protects the wire and prevents the high-voltage wire from short-circuiting or breaking due to excessive bending. The insulating sleeve 10 further provides electrical safety to avoid the risk of current leakage or electric shock during the power-off process. This design enhances the electrical safety of the entire power-off system, ensures that the high-voltage wire always remains insulated during the power-off process, avoids electrical failures caused by wire damage, and further improves the safety of the vehicle in emergency situations.

[0037] The positioning plug 4 is provided with a positioning pin, and the mounting seat 5 is provided with a limiting groove, the limiting groove is triangular, and the positioning pin can be inserted into the limiting groove. Figure 2 As shown, the triangular limit groove will not limit the mounting base 5 from sliding inward, but can only limit the mounting base 5 from moving outward, thereby preventing the high-voltage connecting terminal 2 from contacting the battery connector during elastic rebound after power failure, thereby ensuring that the connection between the battery and the high-voltage connecting terminal 2 can be disconnected stably and reliably.

[0038] like Figure 3 As shown, the pull wire is a steel wire, and the steel wire passes through a tightening tube. The lower end of the tightening tube has a tightening hole 11. After the steel wire passes through the tightening hole 11, it is divided into two and connected to the upper end of the caliper arm 14. The use of steel wire can withstand a large pulling force, so it can ensure the effective control of the caliper arm 14 during the pulling process. The design of the tightening tube and the tightening hole 11 can provide a precise adjustment mechanism during the wire pulling process, so that the movement of the caliper arm 14 is more precise and controllable. The tension of the steel wire directly controls the movement of the caliper arm 14, so that the caliper clamps the brake disc. This design enables the physical braking system to achieve effective brake 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, and the middle parts of the left tightening arm 15 and the right tightening arm 21 are rotatably connected through a movable shaft 18, and the movable shaft 18 is installed on a fixed bracket 23. The movable shaft 18 of the left tightening arm 15 and the right tightening arm 21 provides the rotatability of the caliper arm 14, so that when the steel wire is pulled, the caliper can evenly clamp the brake disc. This design provides a balancing mechanism to ensure that when the pull wire is pulled, the calipers on both sides can move synchronously to avoid excessive or insufficient braking on one side, thereby ensuring the uniformity and effectiveness of the braking system. The movable shaft 18 is installed on the fixed bracket 23 to ensure that the movement of the caliper arm 14 is limited to the designed trajectory to avoid caliper failure due to improper movement.

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

[0041] When the pull wire pulls the caliper arm 14, the caliper will clamp the brake disc, so that the drive shaft of the vehicle is locked and the vehicle stops moving. Through this design, the combination of the caliper arm 14 and the caliper ensures a strong braking force of the brake system, and enables the entire braking process to be completed quickly and stably. In order to avoid emergency braking and causing the vehicle to roll over. The order of out-of-control disposal is to pull the emergency switch, and then cut off the high-voltage power supply of the vehicle through the wire control method controlled by the switch, so that the vehicle can slide in a powerless state. Then the wire control is transmitted to the braking system, and the brake is applied through the brake disc to achieve a stable parking of the vehicle. The driver can simulate the ABS method of braking control of the vehicle braking system by repeatedly pulling the emergency switch until the vehicle stops smoothly.

[0042] In summary, by pulling up the emergency pull ring inside the vehicle, the power line connection of the high-voltage power battery is cut off, and at the same time, the brake disc of the vehicle is braked by pulling the wire to stop the vehicle. In the case of a power system out of control of a new energy vehicle, the high voltage power outage and the whole vehicle brake stop can be achieved through pure physical intervention without interference from the whole vehicle system.

[0043] Example 2

[0044] This embodiment provides a working method of the physical safety brake power-off system as described in Embodiment 1, including:

[0045] The wire pulls the safety pin 1 upward, and the high-voltage connection terminal 2 slides along the sliding cavity toward the inside of the plug connector 6, disconnecting the high-voltage connection terminal 2 from the battery to cut off the power. Then the wire pulls the upper end of the caliper arm 14, and the lower end of the caliper arm 14 tightens, and the caliper clamps on the brake disc to achieve braking. This method can achieve comprehensive control of the vehicle's power system and braking system through physical intervention. When the power system fails or the intelligent braking system fails, this method provides a reliable alternative to ensure that the vehicle can stop safely. This emergency control method combines power-off and braking operations to provide higher safety and reliability.

[0046] Specifically:

[0047] When a new energy smart vehicle suddenly accelerates out of control, the original vehicle brake caliper 20 will lose the proper braking signal transmission and execution capabilities due to the failure of the vehicle's electronic control system, resulting in a failure to brake. At this time, the user can use the emergency pull ring connected to the steel wire in the vehicle to save himself, and by manually pulling up the emergency pull ring, the vehicle can be put under high pressure and braked.

[0048] The operation method is that the emergency pull ring is connected with a steel wire. After it is pulled up, the safety bolt 1 is pulled up synchronously. Under the tension of the spring 9, the mounting seat 5 and the high-voltage connection terminal 2 in the mounting seat 5 are driven to move backward along the inner limit track 7 ( Figure 2 At the same time, the bending area 8 opens and bends backward under the tension of the spring 9, and under the action of the insulating sleeve 10, the bent high-voltage line is prevented from short-circuiting. At this time, the high-voltage connection terminal 2 is disconnected from the high-voltage battery of the whole vehicle, and the purpose of cutting off the high-voltage power supply of the whole vehicle is achieved. At the same time, the limit pin 24 is inserted into the limit groove to limit the mounting seat 5 to the tension collapse position of the spring 9 to prevent the high-voltage connection terminal 2 from contacting the battery connector.

[0049] The steel wire tension end 12 starts to tighten the steel wire through the tightening hole 11, driving the steel wire at the force end 13, through the connecting hole 17, driving the caliper arm 14, and transmitting through the movable shaft 18, the braking force is transmitted through the left tightening arm 15 and the right tightening arm 21, pushing the left caliper 16 and the right caliper 22, locking the brake disc, and limiting the driving force provided by the connection point 19 between the brake disc and the drive shaft by locking, so as to achieve the purpose of braking and stopping the out-of-control vehicle. The function of the fixed bracket 23 is to ensure that the braking part maintains the current state when the physical intervention brake is applied, so as to ensure the safety and stability of the braking effect.

[0050] When braking is completed and the tightening wire loses its tension, the wire is loosened through the tightening hole 11, loosening the wire tension at the force end 13, loosening the caliper arm 14, and the left caliper 16 and the right caliper 22 to release the locked state of the brake disc. By releasing the lock, the normal rotation of the brake disc and the drive shaft connecting pad is restored, which is convenient for the subsequent rescue and transportation of the vehicle.

[0051] By adding a physical cut-off switch at the high-voltage line connection point and a physical brake control system to the vehicle's brake disc, the overall risk control of the vehicle can be achieved.

[0052] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it 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 on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A physical safety brake power-off system, characterized in that: include: Power-off system and brake system; The power-off system comprises a plug connector, a high-voltage connection terminal and a safety bolt, wherein the plug connector has a sliding cavity, the high-voltage connection terminal is used to connect to a battery, the high-voltage connection terminal is slidably mounted in the sliding cavity and has a tendency to move toward the inside of the plug connector, and the safety bolt is inserted through the sliding cavity and can prevent the high-voltage connection terminal from moving toward the inside; The brake 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 the caliper is clamped on both sides of the brake disc.

2. The physical safety brake power-off system according to claim 1, characterized in that: The plug connector has a base inside, a positioning plug for positioning and plugging with the battery is arranged in the middle of the base, and the sliding cavity is arranged inside the positioning plug.

3. The physical safety brake power-off system according to claim 2, characterized in that: A mounting seat is arranged inside the positioning plug, the high-voltage connection terminal is mounted on the outer end surface of the mounting seat, an inner limit track is arranged on the inner side surface of the positioning plug, and the mounting seat is slidably mounted on the inner limit track.

4. The physical safety brake power-off system according to claim 3, characterized in that: A spring is installed in the sliding cavity, one end of the spring is connected to the inner end surface of the mounting seat, and the other end of the spring is connected to the inner side wall of the plug connector.

5. The physical safety brake power-off system according to claim 4, characterized in that: A high-voltage line is also installed in the sliding cavity. The high-voltage line is connected to a high-voltage connection terminal. The high-voltage line has a bending area and an insulating sleeve is provided on the outside of the high-voltage line.

6. The physical safety brake power-off system according to claim 4, characterized in that: A positioning pin is installed on the positioning plug, and a limiting groove is arranged on the mounting seat. The limiting groove is triangular in shape, and the positioning pin can be inserted into the limiting groove to limit the mounting seat from moving outward.

7. The physical safety brake power-off system according to claim 1, characterized in that: The pull wire is a steel wire which passes through a tightening tube. The lower end of the tightening tube is provided with a tightening hole. After passing through the tightening hole, the steel wire is divided into two and connected to the upper end of the caliper arm.

8. The physical safety brake power-off system according to claim 7, characterized in that: The caliper arm comprises a left tightening arm and a right tightening arm. The middle parts of the left tightening arm and the right tightening arm are rotatably connected via a movable shaft, and the movable shaft is mounted on a fixed bracket.

9. The physical safety brake power-off system according to claim 8, characterized in that: The steel wires are respectively connected to the upper ends of the left tightening arm and the right tightening arm, the left caliper is installed at the lower end of the left tightening arm, and the right caliper is installed at the lower end of the right tightening arm. The left caliper and the right caliper are respectively clamped on both sides of the brake disc.

10. A working method of the physical safety brake power-off system according to any one of claims 1 to 9, characterized in that: include: The pull wire pulls the safety bolt upward, and the high-voltage connection terminal slides along the sliding cavity toward the inside of the plug connector, disconnecting the high-voltage connection terminal from the battery to achieve power off; The cable pulls the upper end of the caliper arm, the lower end of the caliper arm tightens, and the caliper clamps on the brake disc to achieve braking.

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