Anti-rollover structure, vehicle, control method, electronic equipment and storage medium

Abstract

The invention discloses an anti-rollover structure, a vehicle, a control method, electronic equipment and a storage medium, and belongs to the technical field of vehicle engineering.The anti-rollover structure comprises a connecting base body arranged in a vehicle body of the vehicle; the supporting component is provided with a supporting surface used for being in contact with the ground; the telescopic component is used for connecting the connecting base body and the supporting component and can stretch out and draw back in the horizontal direction of the vehicle; and the control unit comprises a driving module and a controller, the driving module is used for driving the telescopic component to act, and the controller is in communication connection with the driving module and used for controlling the driving unit to drive the telescopic component to act in response to the rollover starting and stopping signal. Effective lateral support can be provided at the critical point of rollover of the vehicle in a physical intervention mode, and the rollover resistance and passenger safety of the vehicle under the limiting working conditions of high speed, curves and the like are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle engineering, and particularly relates to a rollover prevention structure, a vehicle, a control method, an electronic device and a storage medium. BACKGROUND

[0002] Vehicle rollover is a serious and highly fatal accident form in road traffic. According to traffic accident statistics, although rollover accidents account for a small proportion of the total number of accidents, the serious injuries and death rates caused by rollover accidents are much higher than those of other types of accidents. In particular, in SUVs, MPVs and other vehicles with high centers of gravity, and in high-speed trucks, the risk of rollover is particularly prominent.

[0003] Traditional passive safety systems, such as seat belts and airbags, mainly play a role in protecting passengers after a collision accident occurs, and belong to post-remedial measures. For rollover, which is a highly dynamic out-of-control working condition, the industry urgently needs a safety technology that can actively intervene at the critical point of the accident to prevent the vehicle from completely entering an irreversible rollover process from an out-of-control state, thereby realizing the leap from "passive protection" to "active prevention".

[0004] Currently, the industry mainly relies on electronic stability program (ESC) as the main active safety technology to prevent vehicle loss of control (including rollover). However, the ESC system has its physical limits. In extreme driving conditions, such as high-speed emergency lane changing (moose test), excessive speed on a curve, or sudden tire pressure loss, relying solely on brake force and engine torque control of the wheels may not be enough to resist the strong physical centrifugal force, and the vehicle may still exceed the grip limit and roll over.

[0005] Therefore, it is of great practical significance and application value to develop a new safety device that can provide additional physical support after the ESC system's effectiveness is critical and before the vehicle rolls over. SUMMARY

[0006] In view of the problems of the prior art, the present application provides a rollover prevention structure, a vehicle, a control method, an electronic device and a storage medium, which can provide effective lateral support at the critical point of vehicle rollover through physical intervention, significantly improving the vehicle's rollover resistance and passenger safety in extreme conditions such as high speed and curves.

[0007] The present application is implemented as follows: a rollover prevention structure, comprising: a connecting base provided in a vehicle body of a vehicle; a support member provided with a support surface for contacting the ground; a telescopic member for connecting the connecting base and the support member and being telescopic in the horizontal direction of the vehicle; and a control unit, the control unit comprising a driving module for driving the telescopic member to act and a controller in communication connection with the driving module for controlling the driving module to drive the telescopic member to act in response to the rollover start-stop signal; In a normal state of the vehicle, the telescopic member is retracted and the support member is retracted to a retracted position inside the vehicle body; in a rollover state of the vehicle, the telescopic member is extended and the support member is moved to an extended position outside the vehicle body along a horizontal direction of the vehicle, in which the support member forms a support angle with the ground.

[0008] Further, the telescopic member comprises an execution element and at least one telescopic arm arranged on a piston rod of the execution element.

[0009] Further, the execution element is a gas cylinder, and a gas storage tank in communication with the gas cylinder is arranged inside the vehicle body.

[0010] Further, the execution element is a hydraulic cylinder, and the hydraulic cylinder is in communication with a hydraulic system inside the vehicle body.

[0011] Further, the retracted position is located at a central position of the vehicle body.

[0012] In another aspect, a vehicle is provided, comprising the anti-rollover structure as described in any one of the above.

[0013] In yet another aspect, a control method is provided for controlling the anti-rollover structure as described in any one of the above, the method comprising: Real-time data acquisition and preprocessing, the control unit continuously reads raw data from each sensor, filters the raw data; synchronizes all sensor data on the time stamp to obtain a rollover risk index; Rollover risk judgment, comparing the real-time calculated risk index with a preset threshold, and triggering logic using multi-condition combination judgment; Execution mechanism action and support establishment, issuing a pulse signal to the execution mechanism on the target side, and the driving unit drives the telescopic member to act, so that the support member moves to an extended position outside the vehicle body, forming a support angle with the ground.

[0014] Further, the raw data collected by each sensor includes: a gyroscope / attitude sensor obtaining a roll angle and a roll angular velocity of the vehicle around the X-axis; an acceleration sensor obtaining a lateral acceleration; and a vehicle speed sensor obtaining a current vehicle speed.

[0015] In yet another aspect, an electronic device is provided, comprising: at least one processor; a memory in communication connection with the at least one processor; The memory stores a computer program executable by the at least one processor, and the at least one processor implements the control method when executing the computer program.

[0016] In still another aspect, a non-volatile readable storage medium is provided, which stores a computer program, and the computer program implements the control method when executed.

[0017] The application has the advantages and technical effects that: due to the above technical solution, effective lateral support is provided at the critical point of vehicle rollover by means of active, rapid and physical intervention, the deficiency of the existing electronic stability system under physical limit is fundamentally made up, the lag of the passive safety device in post-protection is formed, a complete safety closed loop of "early warning, intervention in the middle, and protection after the event" is formed, and the anti-rollover ability and passenger safety of the vehicle under extreme conditions such as high speed and curve are significantly improved.

[0018] Based on the decision algorithm of multi-sensor (gyroscope, accelerometer) fusion, the rollover trend can be accurately predicted. Combined with high-pressure gas / hydraulic drive technology, the whole system can be completed in a short time from judgment to complete unfolding and locking of the support, and the intervention is completed before the vehicle center of gravity crosses the stability critical point, which wins valuable time for the driver to correct the posture and avoid accidents.

[0019] The hidden design is adopted, the support is completely stored in the bottom of the vehicle body in the non-working state, and the vehicle appearance, aerodynamics and passability are not affected. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram provided by an embodiment of the application.

[0021] Figure 2 is a control method flowchart provided by an embodiment of the application.

[0022] In the figure: 1, vehicle body; 2, connecting base; 3, telescopic member; 4, support member. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the application more clear, the application will be further described in detail below with examples. It should be understood that the specific examples described herein are only used to explain the application, and are not used to limit the application.

[0024] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] As shown in Figure 1 and Figure 2 , the present application provides a rollover prevention structure, comprising: a connecting base 2 arranged in a vehicle body 1 of a vehicle; a support member 4 arranged for a support surface in contact with the ground; a telescopic member 3 for connecting the connecting base 2 and the support member 4, and being telescopic in the horizontal direction of the vehicle; and a control unit, the control unit comprising a driving module for driving the telescopic member 3 to act, and a controller in communication connection with the driving module, for controlling the driving unit to drive the telescopic member 3 to act in response to a rollover start-stop signal; In a normal state of the vehicle, the telescopic member 3 is retracted and the support member 4 is retracted to a retracted position inside the vehicle body 1; in a rollover state of the vehicle, the telescopic member 3 is extended and the support member 4 is moved in the horizontal direction of the vehicle to an extended position outside the vehicle body 1, and the support member 4 forms a support angle with the ground in the extended position.

[0026] Further, the telescopic member 3 comprises an execution element and at least one telescopic arm, the telescopic arm being arranged on the piston rod of the execution element. In an embodiment, the telescopic arm is arranged in a multi-stage structure, a plurality of rod-shaped structures with diameters decreasing in turn and being successively sleeved, and the piston rod is connected with the rod-shaped structure with the smallest diameter to realize the action of the multi-stage telescopic arm.

[0027] In an embodiment, the execution element is a gas cylinder, and a gas storage tank in communication with the gas cylinder is arranged in the vehicle body 1.

[0028] In an embodiment, the execution element is a hydraulic cylinder, and the hydraulic cylinder is in communication with a hydraulic system in the vehicle body 1.

[0029] Further, the retracted position is located at the center of the vehicle body 1.

[0030] Another aspect provides a vehicle comprising the rollover prevention structure as described above.

[0031] Still another aspect provides a control method for controlling the rollover prevention structure as described above, the method comprising: Data real-time acquisition and preprocessing, the control unit continuously reads the original data from each sensor, filters the original data, eliminates signal noise and short-term interference, and improves the signal-to-noise ratio; synchronize all sensor data on the timestamp, obtain the rollover risk index, and ensure the consistency of the calculation; Side roll risk judgment, compare the risk index calculated in real time with the preset threshold, and trigger the logic to use multi-condition combination judgment; Actuator action and support establishment, send a pulse signal to the actuator of the target side (trigger the left side for left rollover, and trigger the right side for right rollover), drive the extension member 3 to move, and the support member 4 moves to the extended position outside the vehicle body 1, and forms a support angle with the ground.

[0032] Further, the original data collected by each sensor includes: the gyroscope / attitude sensor obtains the roll angle and roll angular velocity of the vehicle around the X axis; the acceleration sensor obtains the lateral acceleration; and the vehicle speed sensor obtains the current vehicle speed.

[0033] In another aspect, an electronic device is provided, comprising: At least one processor; A memory in communication connection with the at least one processor; The memory has a computer program which can be executed by the at least one processor, and the at least one processor executes the computer program to realize the control method.

[0034] In another aspect, a non-volatile readable storage medium is provided, which stores a computer program, and the computer program is executed to realize the control method.

[0035] Due to the above technical scheme, by means of active, rapid and physical intervention, effective lateral support is provided at the critical point of vehicle rollover, which fundamentally makes up for the deficiency of the existing electronic stability system under physical limit, and forms a complete safety closed loop of "early warning, intervention during the event, and protection after the event" with the lagging nature of passive safety devices, which significantly improves the anti-rollover ability and passenger safety of the vehicle under extreme conditions such as high speed and curve.

[0036] Based on the decision algorithm of multi-sensor (gyroscope, accelerometer) fusion, the rollover trend can be accurately predicted. Combined with high-pressure gas / hydraulic drive technology, the entire system can be completed in a short time from judgment to support fully deployed and locked, which wins valuable time for the driver to correct the posture and avoid accidents before the vehicle center of gravity crosses the stability critical point.

[0037] The hidden design is adopted, the support is completely stored in the bottom of the vehicle body in the non-working state, which does not affect the appearance, aerodynamics and passability of the vehicle.

[0038] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A roll-over prevention arrangement, characterised in that, The application relates to a vehicle rollover prevention structure, comprising: a connecting base arranged in a vehicle body; a support member arranged to contact with the ground; a telescopic member arranged to connect the connecting base and the support member and capable of telescoping in a horizontal direction of the vehicle; and a control unit comprising a driving module arranged to drive the telescopic member to act and a controller in communication connection with the driving module and arranged to control the driving module to drive the telescopic member to act in response to a rollover start-stop signal; in a normal state of the vehicle, the telescopic member is retracted and the support member is retracted to a retracted position in the vehicle body; in a rollover state of the vehicle, the telescopic member is extended and the support member is moved to an extended position outside the vehicle body in the horizontal direction of the vehicle, and the support member forms a support angle with the ground in the extended position.

2. The roll-over protection structure according to claim 1, characterized in that The telescopic member comprises an actuating element and at least one telescopic arm arranged on a piston rod of the actuating element.

3. The roll-over protection structure of claim 1, wherein The actuating element is a cylinder, and a gas storage tank in communication with the cylinder is arranged in the vehicle body.

4. The roll-over protection structure of claim 1, wherein The actuating element is a hydraulic cylinder, and the hydraulic cylinder is in communication with a hydraulic system in the vehicle body.

5. The roll-over protection structure of claim 1, wherein The retracted position is located at a central position of the vehicle body.

6. A vehicle characterized by comprising: The application further relates to a rollover prevention structure as claimed in any one of claims 1-5.

7. A control method characterized by, The application further relates to a method for controlling a rollover prevention structure as claimed in any one of claims 1-5, comprising: real-time data acquisition and preprocessing, the control unit continuously reading original data from each sensor, filtering the original data, synchronizing all sensor data on a time stamp, and obtaining a rollover risk index; rollover risk judgment, comparing the real-time calculated risk index with a preset threshold, and triggering a logic using a multi-condition combination judgment; actuating element action and support establishment, sending a pulse signal to the actuating element on the target side, driving the telescopic member to act by the driving unit, and moving the support member to the extended position outside the vehicle body to form a support angle with the ground.

8. The control method according to claim 1, characterized by, The original data collected by each sensor comprises: a gyroscope / attitude sensor acquiring a roll angle and a roll angular velocity of the vehicle around an X axis; an acceleration sensor acquiring a lateral acceleration; and a vehicle speed sensor acquiring a current vehicle speed.

9. An electronic device, comprising: The application relates to a vehicle rollover prevention structure, comprising: at least one processor; a memory in communication connection with the at least one processor; the memory stores a computer program executable by the at least one processor, and the at least one processor executes the computer program to realize the control method of claim 7 or 8.

10. A non-transitory readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed to realize the control method of claim 7 or 8.

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