Search

CN-121989874-A - Emergency braking system and vehicle

CN121989874ACN 121989874 ACN121989874 ACN 121989874ACN-121989874-A

Abstract

The invention relates to the technical field of vehicle safety, in particular to an emergency braking system and a vehicle, which comprise a driving mechanism and a wear-resistant pressure-bearing component, wherein the driving mechanism is arranged on a carrier, the wear-resistant pressure-bearing component is connected to the output end of the driving mechanism and is provided with a contact surface for abutting against the ground, the driving mechanism is used for driving the wear-resistant pressure-bearing component to switch between a working position and a storage position, when the wear-resistant pressure-bearing component is in the working position, the contact surface abuts against the ground and generates braking force on the carrier through friction, and the emergency braking system provided by the invention can be used for effectively and rapidly braking a vehicle after the vehicle is in braking failure, so that the safety is improved.

Inventors

  • Chai Nian
  • Chai Zhaokun

Assignees

  • 柴年

Dates

Publication Date
20260508
Application Date
20260212

Claims (10)

  1. 1. An emergency braking system, comprising: the driving mechanism (1) is arranged on the carrier (3); The wear-resistant pressure-bearing assembly (2) is connected to the output end of the driving mechanism (1), and the wear-resistant pressure-bearing assembly (2) is provided with a contact surface (21) for abutting against the ground; wherein the driving mechanism (1) is used for driving the wear-resistant pressure-bearing assembly (2) to switch between a working position and a storage position; when the wear-resistant pressure-bearing assembly (2) is in the working position, the contact surface (21) is abutted against the ground, and a braking force is generated on the carrier (3) through friction force.
  2. 2. Emergency braking system according to claim 1, characterized in that the driving mechanism (1) is configured to control the wear resistant pressure bearing assembly (2) to complete the switching process from the stowed position to the working position in stages.
  3. 3. Emergency braking system according to claim 2, characterized in that the switching of the wear resistant pressure package (2) from the stowed position to the active position comprises: The first stage, the wear-resistant pressure-bearing component (2) is lowered from a storage position to be in contact with the ground; a second stage, wherein the wear-resistant pressure-bearing component (2) is continuously lowered to the working position from the contact with the ground; wherein the first stage has a greater drop rate than the second stage.
  4. 4. Emergency braking system according to claim 1, characterized in that the output force of the drive mechanism (1) is adjustable, and that the wear-resistant pressure-bearing assembly (2) in the active position is able to lift the carrier (3) when the output force of the drive mechanism (1) is greater than the weight of the carrier (3), causing at least part of the wheels of the carrier (3) to be detached from the ground.
  5. 5. Emergency braking system according to claim 1, characterized in that the driving mechanisms (1) are arranged in rows at intervals along the width direction of the bottom of the carrier (3), and the output end of each driving mechanism (1) is connected with the wear-resistant bearing assembly (2) respectively.
  6. 6. The emergency braking system of claim 5, further comprising: The inclination angle detection component (4) is used for detecting the transverse inclination angle and/or the inclination angle speed of the carrier (3) in real time; the controller (5) is electrically connected with the inclination angle detection assembly (4) and the driving mechanism (1); When the wear-resistant pressure-bearing assembly (2) is in a working position and the transverse inclination angle exceeds a preset safety threshold or the inclination angle speed exceeds a critical value, the controller (5) determines the overturning direction of the carrier (3) and controls the driving mechanisms (1) to adjust pressure distribution so that the contact pressure between the wear-resistant pressure-bearing assembly (2) positioned on one side of the overturning direction and the ground is larger than the contact pressure between the wear-resistant pressure-bearing assembly (2) positioned on the opposite side of the overturning direction and the ground.
  7. 7. The emergency braking system of claim 6, further comprising: A pressure sensor (6) for detecting the contact pressure between the wear-resistant pressure-bearing component (2) and the ground, the pressure sensor (6) being electrically connected with the controller (5); the controller (5) controls the pressure distribution of the plurality of driving mechanisms (1) according to the contact pressure between the plurality of wear-resistant bearing assemblies (2) and the ground.
  8. 8. Emergency braking system according to claim 6, characterized in that the drive mechanism (1) is arranged with a plurality of rows at intervals along the length of the bottom of the carrier (3), further comprising: a speed sensor (7) for detecting a running speed of the carrier (3), the speed sensor (7) being electrically connected to the controller (5); The controller (5) controls the driving mechanisms (1) of different rows to output different contact pressures according to feedback signals of the speed sensor (7), and when the speed of the carrier (3) is higher than a preset value, the contact pressure between the wear-resistant bearing assembly (2) of the front row and the ground is smaller than that between the wear-resistant bearing assembly (2) of the rear row and the ground.
  9. 9. The emergency braking system of any of claims 1-8, further comprising: the triggering mechanism (8) is electrically connected with the driving mechanism (1) and is used for triggering the driving mechanism (1) to drive the wear-resistant pressure-bearing assembly (2) to switch from a storage position to a working position; The triggering mechanism (8) is a manual triggering device, and/or the triggering mechanism (8) is electrically connected with the state detection unit of the carrier (3), and when the state detection unit outputs a triggering signal for representing the braking failure working condition of the carrier (3), the triggering mechanism (8) triggers the driving mechanism (1).
  10. 10. Traffic system the tool is used for the treatment of the surface of the body, characterized by comprising the following steps: A carrier (3); an emergency braking system according to any one of claims 1 to 9.

Description

Emergency braking system and vehicle Technical Field The invention relates to the technical field of vehicle safety, in particular to an emergency braking system and a vehicle. Background With the development of the transportation industry, the running speed and the carrying capacity of the vehicle are continuously improved, and higher requirements are put on the reliability of a braking system. The braking system is a central component of vehicle safety and once disabled will directly threaten the life safety of the occupants. The existing vehicles mainly adopt a hydraulic braking system, a pneumatic braking system or an electronic braking system as a conventional braking device. These braking systems are capable of providing a stable and reliable braking force under normal conditions, but in some cases present a risk of failure. For example, hydraulic braking systems may fail to build brake pressure due to leakage of brake fluid, cracking of brake lines, pneumatic braking systems may fail to provide adequate brake air pressure due to air path failure, and electronic braking systems may lose control due to circuit or sensor failure. When the conventional braking system of the vehicle fails, an effective backup braking means is lacking. Some vehicles are equipped with parking brake systems designed mainly for stationary parking, which have small braking forces and which are difficult to provide sufficient emergency braking capability when the vehicle is traveling, especially at high speeds. There are also proposals to provide extendable braking devices on the side or rear of the vehicle to generate friction by contact with the ground. However, such devices usually form a point contact or a line contact with the ground, and the contact area is small, which results in that the contact pressure is too concentrated to quickly wear the brake component, and on the other hand, the total contact area is limited, so that sufficient friction braking force cannot be provided, and the braking effect is poor. Disclosure of Invention The invention provides an emergency braking system and a vehicle, wherein the emergency braking system can be used for effectively and rapidly braking a vehicle after the braking of the vehicle fails, so that the safety is improved. The invention provides an emergency braking system which comprises a driving mechanism arranged on a carrier, a wear-resistant pressure-bearing assembly connected to the output end of the driving mechanism, wherein the wear-resistant pressure-bearing assembly is provided with a contact surface for abutting against the ground, the driving mechanism is used for driving the wear-resistant pressure-bearing assembly to switch between a working position and a storage position, and when the wear-resistant pressure-bearing assembly is in the working position, the contact surface abuts against the ground and generates braking force on the carrier through friction force. In one possible implementation, the drive mechanism is configured to control the wear resistant pressure bearing assembly to complete the switching process from the stowed position to the working position in stages. In one possible implementation, the process of switching the wear resistant pressure bearing assembly from the storage position to the working position comprises a first stage, wherein the wear resistant pressure bearing assembly is lowered from the storage position to be in contact with the ground, and a second stage, wherein the lowering speed of the first stage is higher than that of the second stage. In one possible implementation, the output force of the drive mechanism is adjustable, and when the output force of the drive mechanism is greater than the weight of the carrier, the wear resistant pressure bearing assembly in the operative position is capable of lifting the carrier to disengage at least a portion of the wheels of the carrier from the ground. In one possible implementation, a plurality of driving mechanisms are arranged at intervals along the width direction of the bottom of the carrier, and the output end of each driving mechanism is respectively connected with a wear-resistant pressure-bearing assembly. In one possible implementation, the anti-overturning device further comprises an inclination angle detection component used for detecting the transverse inclination angle and/or the inclination angle speed of the carrier in real time, and a controller electrically connected with the inclination angle detection component and the driving mechanism, wherein when the wear-resistant pressure-bearing component is in an operating position and the transverse inclination angle exceeds a preset safety threshold or the inclination angle speed exceeds a critical value, the controller determines the overturning direction of the carrier and controls the driving mechanisms to adjust pressure distribution so that the contact pressure between the wear-resistant pressure-bearing component posit