CN114407825B

CN114407825B - Vehicle safety belt control system

Info

Publication number: CN114407825B
Application number: CN202111342149.4A
Authority: CN
Inventors: 朱洪
Original assignee: Hozon New Energy Automobile Co Ltd
Current assignee: Hozon New Energy Automobile Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2023-07-21
Anticipated expiration: 2041-11-12
Also published as: CN114407825A

Abstract

The invention provides a vehicle seat belt control system, comprising: a seat belt webbing; the retractor is connected with the first end of the safety belt webbing and is used for winding and retracting the safety belt webbing; the guide plate penetrates through the safety belt webbing and is arranged at the side of the upper part of the vehicle seat; the controller receives vehicle running state data and/or driver state data and judges the vehicle running state data and/or the driver state data to send out a control signal; and the control motor is connected with the second end of the safety belt webbing and is used for stretching and playing back the safety belt webbing based on the control signal.

Description

Vehicle safety belt control system

Technical Field

The invention mainly relates to the field of automobile manufacturing and use, in particular to a vehicle safety belt control system.

Background

In the current automobile market, the problem of the use safety of automobiles is still an extremely important aspect of automobile research and development. Automobile safety belts are also called as 'life belts', and are used as passive protection devices in the market at present, and passengers are fixed on an automobile after collision. The safety belt in this way only plays a passive protection role.

Disclosure of Invention

The invention aims to solve the technical problem of providing a vehicle safety belt control system which plays an active early warning and protecting role for vehicle drivers and passengers.

In order to solve the above technical problems, the present invention provides a vehicle seat belt control system, including: a seat belt webbing; the retractor is connected with the first end of the safety belt webbing and is used for winding and retracting the safety belt webbing; the guide plate penetrates through the safety belt webbing and is arranged at the side of the upper part of the vehicle seat; the controller receives vehicle running state data and/or driver state data and judges the vehicle running state data and/or the driver state data to send out a control signal; and the control motor is connected with the second end of the safety belt webbing and is used for stretching and playing back the safety belt webbing based on the control signal.

In an embodiment of the present invention, the vehicle driving status data includes vehicle track data, vehicle speed data, vehicle body stress sensing data and/or vehicle driving road condition data.

In an embodiment of the invention, the driver status data comprises driving duration information and/or face detection data.

In one embodiment of the present invention, determining the vehicle driving state data and/or driver state data to issue a control signal includes:

and when the deviation value of the center line of the vehicle track and the center line of the vehicle travelling lane exceeds a first threshold value, a first type of control signal is sent out.

and when the current speed of the vehicle exceeds a second threshold value, a first type of control signal is sent out.

and when the driving duration exceeds a third threshold value, a first type of control signal is sent out.

and when the blink and/or the drop head action frequency of the driver in the fifth time period exceeds a sixth threshold value according to the face detection data, a first type control signal is sent.

In one embodiment of the invention, the second type of control signal is issued when the body of the vehicle is subjected to a collision force greater than a seventh threshold value.

In one embodiment of the invention, the second type of control signal causes the control motor to perform a tension operation on the webbing and to lock the webbing.

In one embodiment of the present invention, the vehicle seat belt control system further includes: the buckle passes through the safety belt webbing and is matched with the plugboard, and the plugboard is arranged on the first side of the lower part of the vehicle seat.

In one embodiment of the invention, the control motor is mounted to a vehicle floor or seat bottom member.

Compared with the prior art, the invention has the following advantages: according to the technical scheme, the safety belt webbing is correspondingly stretched and played back through judgment, processing and control of the motor by the controller, so that the safety reminding function and the active early warning function for a vehicle driver are realized, and the safety of the vehicle driving process is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the accompanying drawings:

fig. 1 is a schematic composition diagram of a vehicle seat belt control system according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a controller according to an embodiment of the present application receiving vehicle travel state data and/or driver state data.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is obvious to those skilled in the art that the present application may be applied to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present application be understood, not simply by the actual terms used but by the meaning of each term lying within.

It will be understood that when an element is referred to as being "on," "connected to," "coupled to," or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to," or "directly contacting" another element, there are no intervening elements present. Likewise, when a first element is referred to as being "electrically contacted" or "electrically coupled" to a second element, there are electrical paths between the first element and the second element that allow current to flow. The electrical path may include a capacitor, a coupled inductor, and/or other components that allow current to flow even without direct contact between conductive components.

Embodiments of the present application describe a vehicle seat belt control system.

As shown in fig. 1, the vehicle seat belt control system 100 includes a seat belt webbing 101, a retractor 102, a guide plate 103, a control motor 105, and a controller. The controller is not shown in the figures. The controller may be connected to the control motor 105 through an electrical connection network.

In some embodiments, a retractor 102 is coupled to the first end of the seat belt webbing for winding and retracting the seat belt webbing 101. The retractor 102 is mounted at a position such as an a-pillar or a B-pillar of a vehicle.

In some embodiments, a guide plate is passed through the webbing and is disposed laterally of the upper portion of the vehicle seat 112, and is fixed to the vehicle body inside region laterally of the upper portion of the vehicle seat, specifically, for example, by a bolt 131.

In some embodiments, the controller is configured to receive vehicle travel state data and/or driver state data and determine the vehicle travel state data and/or driver state data to issue a control signal.

A control motor 105 is connected to a second end of the webbing 101 for performing a stretching and playback operation of the webbing based on the control signal.

In some embodiments, the vehicle seat belt control system 100 further includes a buckle and insert plate assembly. The stab and insert plate assembly includes, for example, a stab 108 and an insert plate 109.

The buckle 108 passes through the webbing 101 and cooperates with a plug-in plate 109, which plug-in plate 109 is arranged on a lower first side of the vehicle seat 112. The insert plate 109 is fixed to a side lower member of the vehicle seat by, for example, bolts or rivets 132.

In some embodiments, the retractor 102 includes a mechanical structure that locks the seat belt webbing when the seat belt webbing is stretched (or pulled) with great force.

In some embodiments, the vehicle travel state data includes vehicle trajectory data, vehicle speed data, body stress awareness data, and vehicle travel road condition data.

In some embodiments, the driver status data includes driving duration information and face detection data. The face detection data is acquired after being photographed and analyzed by an imaging device installed in a vehicle, for example, and may also be referred to as face state detection data.

In some embodiments, determining the vehicle travel state data and/or driver state data to issue a control signal includes: and when the deviation value of the center line of the vehicle track and the center line of the vehicle travelling lane exceeds a first threshold value, a first type of control signal is sent out. Wherein the vehicle traveling road condition data includes position data of a center line of a vehicle traveling lane.

After the control motor 105 receives the first type of control signal, the stretching and playback operation is performed on the seat belt webbing based on the first type of control signal, the amplitude and the strength of the stretching and playback operation can be set according to the requirement, and the stretching and playback operation enables the seat belt webbing not to reach a locking state, so that the seat belt webbing can be repeatedly stretched and played back and forth, and the seat belt webbing slides back and forth to play a role and an effect of reminding a driver of attention.

In some embodiments, determining the vehicle travel state data and/or driver state data to issue a control signal includes: and when the current speed of the vehicle exceeds a second threshold value, a first type of control signal is sent out. After receiving the first type of control signal, the control motor 105 performs a stretching and playback operation on the webbing based on the first type of control signal.

In some embodiments, determining the vehicle travel state data and/or driver state data to issue a control signal includes: and when the driving duration exceeds a third threshold value, a first type of control signal is sent out. The driving time period may be set according to the actual situation, for example, 1 hour, 2 hours, …,3 hours, or 3.5 hours.

In some embodiments, determining the vehicle travel state data and/or driver state data to issue a control signal includes: and when the frequency of blinking and/or head hanging action (or head lowering action) of the driver in the fifth time period exceeds a sixth threshold value according to the face detection data, a first control signal is sent out. The value of the fifth time period may be set according to the counting requirement, for example 2 minutes (min), 3 minutes, 5 minutes or 8 minutes.

According to the vehicle safety belt control system, the corresponding stretching and playback operation is carried out on the safety belt webbing through the judgment and the processing of the controller and the operation of the control motor, so that the situation that a vehicle driver is reminded of potential safety hazards such as lane departure, overspeed driving and fatigue driving is achieved, and the active early warning function of the vehicle safety belt control system in the using process of a vehicle is achieved.

In some embodiments, the second type of control signal is issued when the body of the vehicle is subjected to a collision force greater than a seventh threshold value. The vehicle body stress sensing data comprise data of collision force applied to the vehicle body.

The second type of control signal for example causes the control motor 105 to perform a stretching operation of the webbing 101 and to lock the webbing. The motor is controlled to stretch the safety belt webbing with great force and fast, and the stretching force exceeds the eighth threshold value to lock the safety belt webbing via the retractor.

Referring to fig. 2, a seat belt controller (or simply controller) 200 receives data transmissions from modules 202, 204, 206, and 208. In some embodiments, the module 202 is configured to obtain and store vehicle trajectory data. Module 204 is operable to acquire and store vehicle speed data. The module 206 is configured to obtain and store body stress awareness data. The module 208 is configured to obtain and store vehicle driving road condition data. The vehicle traveling road condition data includes, for example, lane line position data corresponding to a vehicle traveling lane, and road condition information around the vehicle, such as congestion state data, and the like.

In some embodiments, the control motor is mounted to a vehicle floor or seat bottom member to effect immobilization.

According to the vehicle safety belt control system, when a collision signal that a vehicle body is impacted by a large force is received, the controller sends out a corresponding control signal, so that the control motor performs a stretching operation that the force exceeds a specific threshold value, the safety belt webbing reaches a locking state in advance, the body damage caused by large force forward tilting of a driver and a passenger is prevented when the vehicle is impacted, the active protection effect on the driver and the passenger is achieved, and the safety of vehicle use is improved.

Aspects of the present application, such as the controller or the electronics in controlling the motor, may be implemented entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or may be implemented in a combination of hardware and software. The above hardware or software may be referred to as a "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital signal processing devices (DAPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may take the form of a computer product, comprising computer-readable program code, embodied in one or more computer-readable media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, tape … …), optical disk (e.g., compact disk CD, digital versatile disk DVD … …), smart card, and flash memory devices (e.g., card, stick, key drive … …).

The computer readable medium may comprise a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take on a variety of forms, including electro-magnetic, optical, etc., or any suitable combination thereof. A computer readable medium can be any computer readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer readable medium may be propagated through any suitable medium, including radio, cable, fiber optic cable, radio frequency signals, or the like, or a combination of any of the foregoing.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the above disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.

Likewise, it should be noted that in order to simplify the presentation disclosed herein and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the subject application. Indeed, less than all of the features of a single embodiment disclosed above.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.

While the present application has been described with reference to the present specific embodiments, those of ordinary skill in the art will recognize that the above embodiments are for illustrative purposes only, and that various equivalent changes or substitutions can be made without departing from the spirit of the present application, and therefore, all changes and modifications to the embodiments described above are intended to be within the scope of the claims of the present application.

Claims

1. A vehicle seat belt control system comprising:

a seat belt webbing;

the retractor is connected with the first end of the safety belt webbing and is used for winding and retracting the safety belt webbing;

the guide plate penetrates through the safety belt webbing and is arranged at the side of the upper part of the vehicle seat;

the controller receives vehicle running state data and/or driver state data and judges the vehicle running state data and/or the driver state data to send out a control signal; the vehicle running state data includes vehicle track data;

the control motor is connected with the second end of the safety belt webbing and is used for stretching and playing back the safety belt webbing based on the control signal; the control signals comprise a first type control signal and a second type control signal, when the control signals are the first type control signals, the stretching and playback operation is that the safety belt webbing does not reach a locking state, so that the stretching and playback operation can be performed repeatedly and repeatedly on the safety belt webbing;

2. The vehicle seat belt control system of claim 1, wherein the vehicle travel state data includes vehicle speed data, vehicle body stress sensing data, and/or vehicle travel road condition data.

3. The vehicle seat belt control system according to claim 1, wherein the driver status data includes driving duration information and/or face detection data.

4. The vehicle seat belt control system according to claim 2, wherein determining the vehicle running state data and/or driver state data to issue a control signal includes:

5. The vehicle seat belt control system according to claim 3, characterized in that determining the vehicle running state data and/or driver state data to issue a control signal includes:

6. The vehicle seat belt control system according to claim 3, characterized in that determining the vehicle running state data and/or driver state data to issue a control signal includes:

7. The vehicle seat belt control system of claim 2, wherein the second type of control signal is issued when a collision force experienced by a body of the vehicle is greater than a seventh threshold value.

8. The vehicle seat belt control system of claim 7, wherein the second type of control signal causes the control motor to operate the seat belt webbing in tension and to lock the seat belt webbing.

9. The vehicle seat belt control system according to claim 1, characterized by further comprising: the buckle passes through the safety belt webbing and is matched with the plugboard, and the plugboard is arranged on the first side of the lower part of the vehicle seat.

10. The vehicle seat belt control system of claim 1, wherein the control motor is mounted to a vehicle floor or seat bottom member.