CN112606786B - Safety protection method, device and system for electric safety belt - Google Patents

Safety protection method, device and system for electric safety belt Download PDF

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Publication number
CN112606786B
CN112606786B CN202011484062.6A CN202011484062A CN112606786B CN 112606786 B CN112606786 B CN 112606786B CN 202011484062 A CN202011484062 A CN 202011484062A CN 112606786 B CN112606786 B CN 112606786B
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vehicle
preset
working condition
information
force
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CN112606786A (en
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向保才
王星磊
黄强
周俊
张超
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01252—Devices other than bags
    • B60R2021/01265—Seat belts

Abstract

The invention relates to the technical field of automobile electronic control, in particular to a safety protection method, a device and a system of an electric safety belt, wherein the method comprises the following steps: various items of information of the vehicle are collected, including: the method comprises the following steps that (1) electric signals of a buckle end of an electric safety belt, speed, angular speed and acceleration information of a vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, sensor information of the electric safety belt and the seat, lane deviation information, front collision early warning information and steering information of the vehicle are obtained; analyzing various information of the vehicle to obtain the working condition of the vehicle; the electric safety belt is controlled based on the working condition of the vehicle, and then the contraction state of the electric safety belt can be adjusted according to any working condition of the non-standby state of the vehicle, so that the contraction state of the electric safety belt in various working conditions of the vehicle is ensured, and the safety of drivers and passengers and the use convenience of the safety belt are ensured.

Description

Safety protection method, device and system for electric safety belt
Technical Field
The invention relates to the technical field of automobile electronic control, in particular to a safety protection method, a device and a system of an electric safety belt.
Background
An electric safety belt system is generally adopted on middle and high-end vehicle types, and the principle of the electric safety belt system is to electrically recover a mesh belt. This electronic safety belt system mainly includes: electric seat belt, ECU control unit. Wherein, this electronic safety belt includes safety meshbelt, motor, coiler, and the motor passes through gear engagement with the coiler, and the safety meshbelt roll-up is on the coiler to realize electronic roll-up.
The electric safety belt system can greatly facilitate the operation of a user, and simultaneously can simply acquire the state parameters of the vehicle to realize simple control on the electric safety belt.
However, the electric seat belt system is developed only for the electric seat belt, and the safety performance of the electric seat belt system is not good in the safety protection of the vehicle, and cannot meet the requirement of the user for the safety protection.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a motorized seatbelt safety shield method, apparatus, and system that overcome or at least partially address the above-discussed problems.
In a first aspect, the present invention provides an electric seatbelt safety protection method applied to a vehicle having an electric seatbelt system, including:
various items of information of the vehicle are collected, including: an electric signal of a buckle end of an electric safety belt, speed, angular speed, acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and a seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle;
analyzing various pieces of information of the vehicle to obtain the working condition of the vehicle;
and controlling the electric safety belt based on the working condition of the vehicle.
Further, after the controlling the electric seat belt based on the operating condition of the vehicle, the method further includes:
and controlling the vehicle to recover to a standby state so as to continuously acquire various information of the vehicle.
Further, the analyzing various items of information of the vehicle to obtain the working condition of the vehicle includes:
analyzing various items of information of the vehicle, and when the electric signal at the buckle end displays that a lock tongue is inserted:
on the premise that the forward speed of the vehicle reaches a first preset speed and the deviation angle of a seat and a longitudinal center line of the vehicle meets a first preset angle range, when the variation of a brake pedal reaches a first preset variation or the forward acceleration of the vehicle reaches a first preset acceleration, obtaining a first working condition that the vehicle is in emergency horizontal braking and the seat faces a non-complete backward direction;
on the premise that the forward speed of the vehicle reaches a second preset speed and the offset angle of the seat and the longitudinal center line of the vehicle meets a second preset angle range, when the variation of the accelerator pedal reaches a second preset variation or the forward acceleration of the vehicle reaches a second preset acceleration, obtaining a second working condition that the vehicle is rapidly accelerated at an emergency level and the seat faces the incomplete forward direction;
when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular speed of the vehicle rotating around the X axis is smaller than the first preset angular speed, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range, obtaining a third working condition that the vehicle is in transverse rapid movement and the direction of the seat is not completely forward to the movement direction;
when the acceleration of the vehicle along the Z axis reaches a fourth preset acceleration, obtaining a fourth working condition that the vehicle is in rapid descending;
the locking tongue of the electric safety belt is just inserted into a buckle, and a fifth working condition that the vehicle is just inserted into the buckle is obtained;
when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed, the second preset angular speed is larger than the first preset angular speed, and a sixth working condition that the vehicle is about to turn on one side is obtained;
when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed, acquiring a seventh working condition that the vehicle is about to turn over front and back;
when the vehicle is in a lane offset state, acquiring an eighth working condition that the vehicle has lane offset;
when the speed of the vehicle reaches a third preset speed and is less than a fourth preset speed, and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle meets a corresponding threshold interval, acquiring a ninth working condition that the vehicle is in rapid turning;
when the vehicle speed of the vehicle reaches the fourth preset speed and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle is greater than or equal to the upper limit value of the corresponding threshold interval, obtaining a tenth working condition that the vehicle is in extremely fast turning;
when a sensor on the electric safety belt detects that the distance between a shoulder belt or a waist belt and the seat does not meet the corresponding preset distance, acquiring an eleventh working condition that the vehicle is not worn correctly by the electric safety belt;
obtaining a twelfth working condition that the vehicle is about to collide when the vehicle is about to collide;
analyzing various information of the vehicle, and when the electric signal of the buckle end shows that the lock tongue leaves the buckle end:
and obtaining that the vehicle is in a thirteenth working condition that the electric safety belt is just unbuckled when the lock tongue of the electric safety belt is just unbuckled.
Further, the controlling the electric seat belt based on the working condition of the vehicle comprises:
controlling the electric safety belt to tighten the safety webbing in the form of a first preset force under any one of the following working conditions:
the vehicle is in the third operating condition, the vehicle is in the sixth operating condition, the vehicle is in the seventh operating condition, and the vehicle is in the twelfth operating condition;
the first preset force is in the form of: the opening time range of the first preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, and the interval time range is 0s-1 s;
controlling the electric safety belt to tighten the safety belt in the form of second preset force under any one of the following working conditions:
the vehicle is in the tenth operating condition;
the second preset force is in the form of: the opening time range of the second preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, the interval time range is 0s-1s, and the force of the second preset force is smaller than that of the first preset force.
Controlling the electric safety belt to tighten the safety belt webbing in the form of a third preset force when the vehicle is in any one of the following working conditions:
the vehicle is in the first working condition, the vehicle is in the second working condition, the vehicle is in the fourth working condition, and the vehicle is in the ninth working condition;
the third predetermined force is in the form of: the opening time range of the third preset force is 0s-0.5s, the duration time range is 1s-7s, the repetition times are 0-5 times, the interval time range is 0s-1s, and the force of the third preset force is smaller than that of the second preset force;
when the vehicle is in the following working condition, controlling the electric safety belt to tighten the safety belt webbing in a fourth preset force mode, or controlling a vibrator on the electric safety belt to vibrate:
the vehicle is in the eighth working condition;
the fourth predetermined force is in the form of: the fourth preset force is intermittent vibration prompting force, the opening time range of the fourth preset force is 0s-0.5s, the duration time range of the fourth preset force is 0.2s-1s, the repetition times are 1-12 times, the interval time range is 0s-1.5s, and the force of the fourth preset force is smaller than that of the third preset force.
Controlling the electric safety belt to tighten the safety belt webbing in a fifth preset force mode when the vehicle is in the following working condition:
the vehicle is in the fifth operating condition;
the fifth preset force is in the form of: the opening time range of the fifth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1 time to 3 times, the interval time range is 0s-5s, and the force of the fifth preset force is smaller than that of the fourth preset force;
when the vehicle is in the following working condition, controlling the electric safety belt to vibrate with a sixth preset force, or controlling a vibrator on the electric safety belt to vibrate:
the vehicle is in the eleventh operating condition;
the starting time range of the vibration prompt in the sixth preset force mode is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1-12 times, the interval time range is 0s-5s, and the force of the sixth preset force is the same as that of the fourth preset force.
Controlling the electric safety belt to tighten the safety belt webbing in a seventh preset force mode when the vehicle is in the following working condition:
the vehicle is in the thirteenth operating condition;
the seventh preset force is in the form of: the opening time range of the seventh preset force is 0s-2s, the duration time range is 0.5s-3s, the repetition times are 1-3 times, the interval time range is 0s-5s, and the force of the seventh preset force is smaller than that of the fifth preset force.
Further, still include:
and when a signal for furling the safety mesh belt is received, if a signal for stopping furling the safety mesh belt is received at the same time, controlling to stop furling the safety mesh belt.
In a second aspect, the present invention provides an electric seat belt safety guard comprising:
the collection module is used for collecting various items of information of the vehicle, and comprises: an electric signal of a buckle end of an electric safety belt, speed, angular speed, acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and a seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle;
the working condition obtaining module is used for analyzing various information of the vehicle to obtain the working condition of the vehicle;
and the control module is used for controlling the electric safety belt based on the working condition of the vehicle.
In a third aspect, the present invention provides an electric seat belt safety protection system, comprising:
an ECU control device, an electric seatbelt;
the ECU control device is used for collecting various pieces of information of the vehicle, and comprises: an electric signal of a buckle end of an electric safety belt, speed, angular speed, acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and a seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle; analyzing various pieces of information of the vehicle to obtain the working condition of the vehicle; and controlling the electric safety belt based on the working condition of the vehicle.
Further, the motorized seatbelt includes:
the safety seat comprises a safety mesh belt, a motor, a retractor, a main sensor positioned on the seat, a corresponding sensing device on the safety mesh belt and a belt buckle on the seat, wherein a lock tongue is arranged on the safety mesh belt and is matched with the belt buckle;
the motor is meshed with the retractor through a gear, and the safety braid is wound on the retractor;
a force sensor is arranged in the retractor and used for sensing the retraction force of the safety braid;
the safety webbing comprises a shoulder belt and a waist belt, and the sensing device on the safety webbing is matched with the main sensor to sense the positions of the shoulder belt and the waist belt.
In a fourth aspect, the present invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the above-mentioned method steps when executing the program.
In a fifth aspect, a computer-readable storage medium, on which a computer program is stored, is characterized in that the program realizes the above-mentioned method steps when executed by a processor.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a safety protection method of an electric safety belt, which is applied to a vehicle with an electric safety belt system and comprises the steps of collecting various information of the vehicle, wherein the information comprises an electric signal of a buckle end of the electric safety belt, speed, angular speed and acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane deviation information, front collision early warning information and steering information of the vehicle, the direction of the X axis is parallel to the front and back direction of the vehicle, the direction of the Y axis is parallel to the left and right direction of the vehicle, and the direction of the Z axis is parallel to the up and down direction of the vehicle; then, analyzing various information of the vehicle to obtain the working condition of the vehicle; based on the working condition of the vehicle, the electric safety belt is controlled, and then the contraction state of the electric safety belt can be adjusted according to any working condition of the non-standby state of the vehicle, so that the contraction state of the electric safety belt in various working conditions of the vehicle is ensured, and the safety of drivers and passengers and the use convenience of the safety belt are ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart illustrating steps of a safety protection method for an electric seat belt according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a seat with a main sensor and a corresponding sensing device on a safety belt according to a second embodiment of the present invention;
fig. 3 is a schematic structural view showing an electric seatbelt safety device according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electric seatbelt safety protection system according to a fourth embodiment of the present invention;
fig. 5 shows a schematic structural diagram of an electronic device implementing a safety protection method for an electric seat belt in the fifth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example one
An embodiment of the present invention provides an electric seatbelt safety protection method, which is applied to a vehicle having an electric seatbelt system, as shown in fig. 1, and includes:
s101, collecting various pieces of information of the vehicle, including: the vehicle safety system comprises electric signals of a buckle end of an electric safety belt, speed, angular speed, acceleration information, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane deviation information, front collision early warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle.
And S102, analyzing various pieces of information of the vehicle to obtain the working condition of the vehicle.
And S103, controlling the electric safety belt based on the working condition of the vehicle.
In a particular embodiment, the motorized seatbelt system includes: ECU control device, electric seat belt. The vehicle can be specifically an automatic driving vehicle, wherein a seat of the automatic driving vehicle has a 360-degree horizontal rotatable function, and a user can adjust the angle of the seat at any time in the driving process.
When the vehicle is powered on, the vehicle automatically enters a standby mode, i.e., a mode in which no operation is performed on the motorized seatbelt.
Then, S101 is executed to collect various pieces of information of the vehicle. The method comprises the following specific steps:
the corresponding angle sensor is arranged on the seat, and the angle information of the seat can be collected.
The vehicle is also provided with an IMU inertia measurement unit which is used for collecting angular velocity information on an X axis and a Y axis of the vehicle, and evaluating whether the vehicle is about to have rollover, front rollover, rear rollover and other information and vehicle steering information.
Various types of sensors are arranged on the vehicle around a driver and a passenger, and as shown in fig. 2, the sensors comprise distance sensing devices of a shoulder belt and a waist belt of a safety webbing and corresponding sensing devices on a seat back and a seat cushion, and are used for acquiring whether the safety webbing of the driver and the passenger is worn correctly, whether the wearing tightness is proper and the like.
Of course, the device also comprises various sensing devices corresponding to a brake pedal and an accelerator pedal, and comprises: the brake pedal is provided with a brake oil pressure and pedal stroke sensor, the accelerator pedal is provided with an accelerator pedal stroke sensor and the like, and the sensors are used for sensing the change of the pedal stroke.
The vehicle further includes a lane offset monitoring system for monitoring lane offset information of the vehicle, which may also be obtained by other devices, which are not limited herein.
The vehicle also includes a collision warning system for monitoring whether the vehicle is likely to have a collision.
Based on all kinds of devices that set up on above-mentioned vehicle, be connected all kinds of devices with this ECU controlling means through CAN signal line or hardwire, the signal of gathering is transmitted through this CAN signal line or hardwire for this ECU controlling means carries out S101, gathers each item information of vehicle, wherein, includes: the vehicle safety system comprises an electric signal of a buckle end of an electric safety belt, speed, angular speed and acceleration information of a vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane offset information, front collision early warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle.
A coordinate system is established by taking the vehicle as an origin, the direction of an X axis is parallel to the front-back direction of the vehicle, the positive direction of the X axis is the direction along the tail of the vehicle, the direction of a Y axis is parallel to the left-right direction of the vehicle, the positive direction of the Y axis is the direction on the right side of the vehicle, the direction of a Z axis is parallel to the up-down direction of the vehicle, and the positive direction of the Z axis is the direction above the vehicle.
And correspondingly acquiring various pieces of information of the vehicle under the established coordinate system, so that the vehicle enters other corresponding modes from the standby mode. Therefore, S102 is executed to analyze various pieces of information of the vehicle and obtain the operating condition, i.e., the mode, of the vehicle.
In a specific embodiment, there are thirteen operating conditions.
Firstly, through analyzing each item of information of the vehicle of above-mentioned collection, when the signal of telecommunication at buckle end shows that there is the spring bolt to insert, including following several operating modes:
under the premise that the forward speed of the vehicle reaches a first preset speed and the offset angle of the seat and the longitudinal center line of the vehicle meets a first preset angle range, when the variable quantity of a brake pedal reaches a first preset variable quantity or the forward acceleration of the vehicle reaches a first preset acceleration, a first working condition that the vehicle is in emergency horizontal braking and the seat faces the incomplete backward direction is obtained.
The first preset angle range is 0-120 degrees rotating along the negative direction of the X axis, and specifically, the seat rotates 0-120 degrees leftwards and rightwards respectively from the negative direction of the X axis. By braking the emergency level (i.e., rapid deceleration of the emergency level) while taking into account the angle of the seat, it is possible to fully take into account the situation in which the seat on which the occupant sits is different from the normal mode in the autonomous vehicle.
When the variation of the accelerator pedal reaches the second preset variation, or the vehicle forward acceleration reaches the second preset acceleration, the second working condition that the vehicle is in emergency level and is accelerated rapidly and the seat faces the incomplete forward direction is obtained.
The second preset angle range is 0-120 degrees rotating along the positive direction of the X axis, and specifically, the seat rotates 0-120 degrees leftwards and rightwards respectively along the positive direction of the X axis. By rapidly accelerating the level of urgency while taking into account the angle of the seat, it is possible to sufficiently take into account the case where the seat on which the occupant sits is different from the normal mode in the autonomous vehicle.
After various pieces of information of the vehicle are analyzed, the fact that the vehicle is in a working condition that the emergency level is accelerated rapidly and passengers on the seats tend to get out of the seats is judged. Similarly, the case where the angle of the seat of the autonomous vehicle changes is also considered here.
And when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular speed of the vehicle rotating around the X axis is smaller than the first preset angular speed, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range, obtaining a third working condition that the vehicle is in transverse rapid movement and the direction of the seat facing the movement direction is not completely forward.
When the main body direction of the vehicle moving along the Y axis is the positive direction of the Y axis, the third preset angle range is that the seat rotates leftwards and rightwards by 0-120 degrees respectively from the negative direction of the Y axis; when the main body direction of the vehicle moving along the Y axis is the Y axis negative direction, the third preset angle range is that the seat rotates 0-120 degrees leftwards and rightwards respectively from the direction along the Y axis positive direction.
Since the vehicle has a lateral acceleration and reaches a third predetermined acceleration, and the angular velocity of the vehicle rotating around the X-axis is smaller than the first predetermined angular velocity, it can be seen that the vehicle may be in a third operating condition with a lateral rapid movement caused by a side impact, and the seat facing a direction not completely in the same direction as the movement direction. Likewise, a case where the seat angle changes in the autonomous vehicle is also considered here.
And when the acceleration of the vehicle along the Z axis (specifically the negative direction of the Z axis) reaches a fourth preset acceleration, acquiring a fourth working condition that the vehicle is in rapid descending.
This condition is for a future flyable vehicle when it is descending rapidly in the air.
And when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed which is greater than the first preset angular speed, obtaining a sixth working condition that the vehicle is about to turn on one side.
In the third working condition, the vehicle body moves transversely and rapidly without turning on the side, and the first preset angular velocity of the corresponding vehicle rotating around the X axis is not greater than the second preset angular velocity, so that in the sixth working condition, the angular velocity of the vehicle rotating around the X axis reaches the second preset angular velocity which is generally set to be greater than the first preset angular velocity, and at the moment, the vehicle is in the working condition of the state of being about to turn on the side.
And when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed, acquiring a seventh working condition that the vehicle is about to turn back and forth.
The Y-axis is parallel to the left-right direction of the vehicle, and therefore, when the angular velocity of the vehicle rotating around the Y-axis is too large, the vehicle tends to turn over right and left.
And when the vehicle is in a lane offset state, acquiring an eighth working condition that the vehicle has lane offset.
Specifically, whether the vehicle has lane deviation is monitored through a lane deviation monitoring system, and if yes, the vehicle is determined to be in an eighth working condition of lane deviation.
And when the vehicle speed of the vehicle reaches a third preset speed and is less than a fourth preset speed and any one of the three parameters of the steering angle, the steering angle speed and the yaw angle speed of the vehicle meets a corresponding threshold interval, acquiring a ninth working condition that the vehicle is in ordinary rapid turning.
The steering angle, the steering angular velocity and the yaw angular velocity of the vehicle can be measured by an IMU inertia measurement unit. And when any one of the three parameters meets the corresponding threshold interval and the vehicle speed is greater than or equal to the third preset speed and less than the fourth preset speed, determining that the vehicle is in a ninth working condition of ordinary rapid turning.
In another case, if the vehicle speed of the vehicle reaches the fourth preset speed and any one of the three parameters of the steering angle, the steering angular velocity and the yaw angular velocity of the vehicle is greater than or equal to the upper limit value of the corresponding threshold interval, a tenth operating condition that the vehicle is in extremely fast turning is obtained.
The tenth operating condition is more dangerous than the ninth operating condition.
And when the sensor on the electric safety belt detects that the distance between the shoulder belt or the waist belt and the seat does not meet the respective corresponding preset distance, acquiring that the vehicle is in an eleventh working condition that the electric safety belt is not worn correctly.
When the driver and the passenger correctly wear the safety woven belt, the distance between the shoulder belt and the seat is kept at a certain distance, so that if the driver and the passenger do not correctly wear the safety woven belt, the distance between the shoulder belt or the waist belt and the seat does not meet the corresponding preset distance, and the eleventh working condition is the unsafe driving condition of the driver and the passenger.
An imminent collision twelfth operating condition is achieved when the vehicle is in an imminent collision state.
Specifically, a front collision early warning system is used for monitoring and judging whether collision is about to occur or not, and if the collision is about to occur, it is determined that the vehicle is in a twelfth working condition of collision about to occur.
The electric signal at the buckle end displays twelve working conditions when the lock tongue is inserted into the buckle end, and the electric signal at the buckle end displays the working conditions when the lock tongue leaves the buckle end by analyzing various pieces of information of the vehicle.
And when the lock tongue of the electric safety belt is just unbuckled, the thirteenth working condition that the vehicle is just unbuckled by the electric safety belt is obtained.
The thirteenth operating condition may be a state in which the driver or passenger is about to get off the vehicle.
The working condition of the vehicle is obtained by analyzing various pieces of information of the vehicle.
After any of the above-described operating conditions is obtained, S103 is executed, and the electric seat belt is controlled based on the operating condition of the vehicle.
Specifically, a corresponding adjustment strategy is obtained based on the working condition of the vehicle; the motorized seat belt is then controlled based on the corresponding adjustment strategy.
The adjustment strategy here mainly consists of a zoom adjustment and a reminder control of the security webbing in the form of different forces.
Specifically, the control strategies corresponding to the thirteen working conditions are shown in an example form of a table:
Figure BDA0002838490550000111
Figure BDA0002838490550000121
Figure BDA0002838490550000131
Figure BDA0002838490550000141
the form of the control of the electric seat belt can show different effects in different forms of force, wherein the different forms of force can be composed of opening time, opening size, duration, repetition times, interval time and the like of the force. The starting time can be the interval time from the system evaluation to the system starting to act in a certain working condition mode; the opening size can be the size of the force transmitted by the electric safety belt output current to the motor to the safety woven belt passing through the guide ring, and the force can be fixed or can be linear force changing along with time and other forms; the duration refers to the duration of the system output current; the repetition times can be the repetition times of each small section of independent current control mode; the interval time can be the interval time of two adjacent small independent current control modes.
The items of opening time, opening size, duration, repetition times, interval time and the like can form different force forms by setting different parameters.
The electric safety belt is controlled according to different force forms.
Wherein, when following arbitrary one operating mode, this electronic safety belt of control tightens up the safety meshbelt with the form of first predetermined power: the vehicle is in the third working condition, the vehicle is in the sixth working condition, the vehicle is in the seventh working condition, and the vehicle is in the twelfth working condition.
Here, the form of the first preset force includes: the opening time range of the first preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, and the interval time range is 0s-1 s. The strength of the first preset force is strong force.
For example, when a certain actual vehicle encounters one or more of the third operating condition, the sixth operating condition, the seventh operating condition, and the twelfth operating condition, the opening time is 0s, the duration is 5s, repetition is not performed, and the force of the first preset force is 35N.
When the third operating mode is that the spring bolt of electronic safety belt inserts the buckle, the vehicle is in horizontal quick travel, and the seat orientation and the incomplete cisoid operating mode of moving direction, and the vehicle is in the operating mode of being strikeed by side promptly, at this moment, tightens up the safety meshbelt with the form of first predetermined power through controlling the safety meshbelt to guarantee the security of driver and crew when the vehicle transversely moves fast, wherein, the dynamics of first predetermined power is the brute force in the form of this first predetermined power.
And the sixth working condition is that when the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in the working condition of being about to turn on one's side, and at the moment, the safety woven belt is tightened up in a first preset force mode by controlling the safety woven belt so as to ensure the safety of the driver and passengers when the vehicle is about to turn on one's side.
The seventh operating mode is when the spring bolt of electronic safety belt inserts the buckle, and the vehicle is in the operating mode of being about to overturn from beginning to end, and at this moment, through controlling safety meshbelt and tightening up safety meshbelt with the form of first predetermined power to guarantee the security of driver and crew when the vehicle is about to overturn from beginning to end.
The twelfth working condition is the working condition when the lock tongue of the electric safety belt is inserted into the belt buckle, the front collision early warning system predicts the working condition when the vehicle is about to collide, and at the moment, the safety mesh belt is tightened in a first preset force mode by controlling the safety mesh belt so as to ensure the safety of drivers and passengers when the vehicle collides.
In the system, the danger and the emergency degree of the vehicle under the third working condition, the sixth working condition, the seventh working condition and the twelfth working condition are higher than those under other working conditions, so that the system is strongest in the form of controlling the tightening force of the safety mesh belt.
And controlling the electric safety belt to tighten the safety woven belt in a second preset force mode under the following working conditions:
the vehicle is in a tenth operating condition.
The second preset force has the form of: the opening time range of the second preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, the interval time range is 0s-1s, and the force of the second preset force is smaller than that of the first preset force.
For example, when a certain actual vehicle encounters the tenth operating condition, the opening time of the second preset force is controlled to be 0s, the opening is controlled to be a linear force continuously increased from 20N to 35N, the duration is 5s, and the operation is not repeated.
The tenth operating mode is when the spring bolt of electronic safety belt inserts the buckle, and the vehicle is in the operating mode of extremely fast turning, and at this moment, through controlling the safety meshbelt and tighten up the safety meshbelt with the form of second preset power to guarantee driver and crew's security when the vehicle is in extremely fast turning, this second preset power form is the power that lasts to rise.
The danger and the emergency degree of the tenth working condition are the same as those of the third, sixth, seventh and twelfth working conditions, but in order to avoid that the driver and passengers are frightened by sudden strong actions of the safety webbing when the vehicle turns extremely fast, and the wrong operation is caused, the second preset force has the same peak value but smaller average value compared with the first preset force, and is a linear force which continuously rises.
Controlling the electric safety belt to tighten the safety webbing in the form of third preset force under any one of the following working conditions:
the vehicle is in the first working condition, the vehicle is in the second working condition, the vehicle is in the fourth working condition, and the vehicle is in the ninth working condition.
The third predetermined force is in the form of: the opening time range of the third preset force is 0s-0.5s, the duration time range is 1s-7s, the repetition times are 0-5 times, the interval time range is 0s-1s, the force of the third preset force is smaller than that of the second preset force, and the force of the third preset force is larger.
When the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in emergency horizontal braking, and the seat faces the working condition of incomplete backward direction, at the moment, the safety belt is tightened up in a third preset force mode through controlling the safety belt, so that the safety of drivers and passengers is ensured.
When the second working condition is that the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in the emergency level and is accelerated rapidly, and the seat faces the non-complete forward working condition, at the moment, the safety belt is tightened up in a third preset force mode through controlling the safety belt, so that the safety of drivers and passengers is guaranteed.
And the fourth working condition is that when the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in the working condition of rapid descending, and at the moment, the safety woven belt is tightened in a third preset force mode by controlling the safety woven belt so as to ensure the safety of the driver and passengers when the vehicle descends rapidly. When the vehicle descends rapidly, drivers and passengers can lose weight, and the safety woven belts are tightened by adopting larger force, so that the feeling of weight loss can be avoided.
And the ninth working condition is that when the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in a quick turning working condition, and at the moment, the safety belt is controlled to tighten the safety woven belt in a third preset force mode so as to ensure the safety of the driver and passengers in quick turning.
The danger and the emergency degree of the vehicle under the first, second, fourth and ninth working conditions are not as same as the third, sixth, seventh, tenth and twelfth working conditions, the peak value and the average value of the third preset force are smaller than those of the second preset force, and the corresponding force is larger.
When the vehicle is in the following working condition, controlling the electric safety belt to tighten the safety belt webbing in the form of fourth preset force, or controlling a vibrator on the electric safety belt to vibrate:
the vehicle is in the eighth operating condition.
The fourth predetermined force is in the form of: the fourth preset force is intermittent vibration prompting force, the opening time range of the fourth preset force is 0s-0.5s, the duration time range of the fourth preset force is 0.2s-1s, the repetition times are 1-12 times, the interval time range is 0s-1.5s, the force of the fourth preset force is smaller than that of the third preset force, and the force of the fourth preset force is medium.
Besides, a vibrator can be arranged on the electric safety belt, and when the vehicle is in an eighth working condition, the vibrator is started to prompt vibration at a preset frequency.
The eighth working condition is that when the lock tongue of the electric safety belt is inserted into the belt buckle, the vehicle is in the working condition of lane departure, and at the moment, the safety belt is controlled to repeatedly tighten the safety woven belt in the form of fourth preset force, so that intermittent vibration prompt is provided, and the safety of drivers and passengers when the vehicle deviates from the lane is ensured.
The vehicle is in the eighth operating condition with less danger and urgency than the first, second, fourth and ninth operating conditions, and the peak value of the corresponding force in the form of force is a medium force.
Controlling the electric safety belt to tighten the safety belt webbing in the form of a fifth preset force when the vehicle is in the following working condition:
the vehicle is in the fifth operating condition.
The fifth predetermined force is in the form of: the opening time range of the fifth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1-3 times, the interval time range is 0s-5s, and the force of the fifth preset force is smaller than that of the fourth preset force.
The fifth working condition is that the lock tongue of the electric safety belt is just inserted into the belt buckle, the vehicle is potentially about to be started to run at the moment, when the belt buckle is just inserted, the safety belt is still in a loose state on the wrapping performance of the human body, the system can automatically tighten the safety woven belt and reduce the gap between the woven belt and the human body, and when the subjective hand is dragged to prevent the woven belt from being recovered, or the body leans forward to cause the actions of preventing the woven belt from being recovered and the like to prevent the woven belt from being recovered, the system can automatically stop the recovery at the moment. The reason for repeating this recycling action is to eliminate misjudgment by other factors or prevention of recycling information with no subjective intention.
The fifth predetermined force has a form in which the peak value of the force is generally smaller than that of the fourth predetermined force.
When the vehicle is in the following working condition, controlling the electric safety belt to vibrate with a sixth preset force, or controlling a vibrator on the electric safety belt to vibrate:
the vehicle is in the eleventh operating condition.
The vibration prompt of the sixth preset force has the opening time range of 0s-1s, the duration time range of 0.5s-3s, the repetition times of 1 to 12 times, the interval time range of 0s-5s, and the force of the sixth preset force is the same as that of the fourth preset force.
The eleventh operating mode is the operating mode that the safety meshbelt of electronic safety belt was not worn by the accuracy, driving safety when the safety meshbelt was not worn by the accuracy can greatly reduced, through the form vibration suggestion of control electronic safety belt with the sixth predetermined power under this kind of operating mode, specifically through contracting the safety meshbelt, perhaps the vibrator on the control safety meshbelt vibrates to this safety meshbelt is worn to suggestion driver and crew safety, makes the safety meshbelt carry out effective protection to driver and crew. Wherein, the dynamics of this sixth predetermined force equals with the dynamics of this fourth predetermined force.
Controlling the electric safety belt to tighten the safety belt webbing in the form of a seventh preset force when the vehicle is in the following working condition:
the vehicle is in the thirteenth operating condition.
The seventh predetermined force is in the form of: the opening time range of the seventh preset force is 0s-2s, the duration time range is 0.5s-3s, the repetition times are 1-3 times, the interval time range is 0s-5s, and the force of the seventh preset force is smaller than that of the fifth preset force.
The thirteenth working condition is the working condition that the lock tongue of the electric safety belt is just unbuckled, and the vehicle is potentially parked and stopped driving under the working condition, and the safety woven belt is recovered by controlling the electric safety belt with sixth preset force under the working condition, so that the safety woven belt is automatically recovered, and the safety belt is favorably sorted.
The seventh preset force is of a form which is relatively smaller than that of the fifth preset force and can be arbitrarily set within the required range.
The above-mentioned working conditions may exist individually, or may exist in two or more working conditions at the same time, and when two or more working conditions exist at the same time, priority control is performed according to a preset priority order. The priority of each working condition is formulated according to the emergency and danger degree of the working conditions, the priority treatment of the corresponding working conditions is obtained according to the sequence of the working condition priorities preset by the system, for example, a certain priority is preset to be twelfth working condition > third working condition > sixth working condition > seventh working condition > tenth working condition > first working condition > second working condition > fourth working condition > ninth working condition > eighth working condition > fifth working condition > eleventh working condition > thirteenth working condition, and the system automatically returns to the normal working condition after the priority working condition treatment. For example, when the tenth operating condition and the first operating condition coexist, the control strategy corresponding to the tenth operating condition is directly executed.
In an optional embodiment, when receiving the signal for retracting the safety webbing, if receiving the signal for preventing retracting the safety webbing at the same time, the control stops retracting the safety webbing, and at this time, it is considered that the occupant does not want to retract the safety webbing.
In an optional implementation manner, after S103, the method further includes: and controlling the vehicle to return to a standby state so as to continuously acquire various information of the vehicle.
When the vehicle returns to the standby state, all information of the vehicle is collected all the time, and then the next working condition mode can be entered.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a safety protection method of an electric safety belt, which is applied to a vehicle with an electric safety belt system and comprises the steps of collecting various information of the vehicle, wherein the information comprises electric signals of a buckle end of the electric safety belt, speed, angular speed and acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane deviation information, front collision early warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the forward direction of the vehicle, the direction of the Y axis is parallel to the left and right direction of the vehicle, and the direction of the Z axis is parallel to the up and down direction of the vehicle; then, analyzing various information of the vehicle to obtain the working condition of the vehicle; the electric safety belt is controlled based on the working condition of the vehicle, and then the contraction state of the electric safety belt can be adjusted according to any working condition of the non-standby state of the vehicle, so that the safety of a driver and passengers and the use convenience of the safety belt are ensured by the contraction state of the electric safety belt in various working conditions of the vehicle.
Example two
Based on the same inventive concept, a second embodiment of the present invention provides an electric safety belt safety protection device, as shown in fig. 3, including:
the collection module 301 is configured to collect various pieces of information of a vehicle, including: the vehicle safety system comprises an electric signal at a buckle end of an electric safety belt, speed, angular speed and acceleration information of a vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane offset information, front collision early warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the forward direction of the vehicle, the direction of the Y axis is parallel to the left and right direction of the vehicle, and the direction of the Z axis is parallel to the up and down direction of the vehicle;
a working condition obtaining module 302, configured to analyze various pieces of information of the vehicle to obtain a working condition of the vehicle;
and the control module 303 is configured to control the electric seat belt based on a working condition of the vehicle.
In an optional embodiment, the method further comprises: and the recovery module is used for controlling the vehicle to recover to a standby state so as to continuously acquire various pieces of information of the vehicle.
In an alternative embodiment, the operating condition obtaining module 302 includes:
the first working condition obtaining module is used for analyzing various items of information of the vehicle, and when the electric signal at the buckle end displays that the lock tongue is inserted: on the premise that the forward speed of the vehicle reaches a first preset speed and the deviation angle of a seat and a longitudinal center line of the vehicle meets a first preset angle range, when the variation of a brake pedal reaches a first preset variation or the forward acceleration of the vehicle reaches a first preset acceleration, obtaining a first working condition that the vehicle is in emergency horizontal braking and the seat faces a non-complete backward direction;
the second working condition obtaining module is used for obtaining a second working condition that the vehicle is in an emergency level and rapidly accelerated and the seat faces the incomplete forward direction when the variation of the accelerator pedal reaches a second preset variation or the forward acceleration of the vehicle reaches a second preset acceleration on the premise that the forward speed of the vehicle reaches a second preset speed and the offset angle of the seat and the longitudinal center line of the vehicle meets a second preset angle range;
the third working condition obtaining module is used for obtaining a third working condition that the vehicle is in transverse rapid movement and the seat faces to a direction which is not completely forward to the movement direction when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular velocity of the vehicle rotating around the X axis is smaller than the first preset angular velocity, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range;
the fourth working condition obtaining module is used for obtaining a fourth working condition that the vehicle is in rapid descending when the acceleration of the vehicle along the Z-axis negative direction reaches a fourth preset acceleration;
the fifth working condition obtaining module is used for obtaining a fifth working condition that the vehicle is just inserted into a buckle of the electric safety belt when a lock tongue of the electric safety belt is just inserted into the buckle;
the sixth working condition obtaining module is used for obtaining a sixth working condition that the vehicle is about to turn on one side when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed, and the second preset angular speed is larger than the first preset angular speed;
the seventh working condition obtaining module is used for obtaining a seventh working condition that the vehicle is about to turn back and forth when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed;
the eighth working condition obtaining module is used for obtaining an eighth working condition that the vehicle has lane deviation when the vehicle is in a lane deviation state;
a ninth working condition obtaining module, configured to obtain a ninth working condition that the vehicle is in a normal quick turn when the vehicle speed of the vehicle reaches a third preset speed and is less than a fourth preset speed, and any one of three parameters, namely a steering angle, a steering angular velocity, and a yaw angular velocity of the vehicle meets a respective corresponding threshold interval;
a tenth working condition obtaining module, configured to obtain a tenth working condition that the vehicle is in an extremely fast turning when the vehicle speed of the vehicle reaches the fourth preset speed and any one of three parameters, namely a steering angle, a steering angular velocity, and a yaw angular velocity of the vehicle is greater than or equal to an upper limit value of a respective corresponding threshold interval;
an eleventh working condition obtaining module, configured to obtain an eleventh working condition that the vehicle is not correctly worn on the electric seatbelt when the sensor on the electric seatbelt detects that the distance between the shoulder belt or the lap belt and the seat does not meet the respective corresponding preset distance;
and the twelfth working condition obtaining module is used for obtaining the twelfth working condition that the vehicle is about to collide when the vehicle is about to collide.
A thirteenth working condition obtaining module, configured to analyze various pieces of information of the vehicle, and when the electric signal at the buckle end indicates that the lock tongue leaves the buckle end:
a thirteenth working condition obtaining module, configured to analyze various pieces of information of the vehicle, where the electric signal at the buckle end indicates that the lock tongue is unlocked: when the bolt of the electric safety belt is just unbuckled, the thirteenth working condition that the vehicle is just unbuckled of the electric safety belt is obtained
In an alternative embodiment, the control module 303 includes:
the first strategy control unit is used for controlling the electric safety belt to tighten the safety belt webbing in the form of first preset force under any one of the following working conditions: the vehicle is in the third operating condition, the vehicle is in the sixth operating condition, the vehicle is in the seventh operating condition, and the vehicle is in the twelfth operating condition; the first preset force is in the form of: the opening time range of the first preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, and the interval time range is 0s-1 s;
the second strategy control unit is used for controlling the electric safety belt to tighten the safety belt webbing in the form of second preset force under any one of the following working conditions: the vehicle is in the tenth operating condition; the second preset force is in the form of: the opening time range of the second preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, the interval time range is 0s-1s, and the force of the second preset force is smaller than that of the first preset force;
a third strategy control unit, configured to control the electric seat belt to tighten the safety webbing with a third preset force in any one of the following operating conditions: the vehicle is in the first working condition, the vehicle is in the second working condition, the vehicle is in the fourth working condition, and the vehicle is in the ninth working condition; the third predetermined force is in the form of: the opening time range of the third preset force is 0s-0.5s, the duration time range is 1s-7s, the repetition times are 0-5 times, the interval time range is 0s-1s, and the force of the third preset force is smaller than that of the second preset force;
the fourth strategy control unit is used for controlling the electric safety belt to tighten the safety belt webbing in a fourth preset force mode or controlling a vibrator on the electric safety belt to vibrate under any one of the following working conditions: the vehicle is in an eighth working condition; the fourth predetermined force is in the form of: the fourth preset force is intermittent vibration prompting force, the opening time range of the fourth preset force is 0s-0.5s, the duration time range of the fourth preset force is 0.2s-1s, the repetition times are 1-12 times, the interval time range is 0s-1.5s, and the force of the fourth preset force is smaller than that of the third preset force;
a fifth strategy control unit, configured to control the electric seat belt to tighten the safety webbing with a fifth preset force in any one of the following operating conditions: the vehicle is in a fifth working condition; the fifth preset force is in the form of: the opening time range of the fifth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1 time to 3 times, the interval time range is 0s-5s, and the force of the fifth preset force is smaller than that of the fourth preset force;
the sixth strategy control unit is used for controlling the electric safety belt to vibrate with a sixth preset force or controlling a vibrator on the electric safety belt to vibrate under any one of the following working conditions: the vehicle is in an eleventh operating condition; the starting time range of the vibration prompt in the form of the sixth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1-12 times, the interval time range is 0s-5s, and the force of the sixth preset force is the same as that of the fourth preset force;
a seventh policy control unit, configured to control the electric seat belt to tighten the safety webbing with a seventh preset force in any one of the following operating conditions: the vehicle is in a thirteenth working condition; the form of the seventh preset force comprises that the opening time range of the seventh preset force is 0s-2s, the duration time range is 0.5s-3s, the repetition frequency is 1 time-3 times, the interval time range is 0s-5s, and the force of the seventh preset force is smaller than that of the fifth preset force.
EXAMPLE III
Based on the same inventive concept, the present invention also provides an electric safety belt safety protection system, as shown in fig. 4, including:
an ECU control device 401, an electric seatbelt 402;
the ECU control device 401 is configured to collect various pieces of information of a vehicle, and includes: electric signals of a buckle end of an electric safety belt, speed, angular speed and acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane offset information, front collision early warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the forward direction of the vehicle, the direction of the Y axis is parallel to the left and right direction of the vehicle, and the vertical direction of the Z axis is parallel; analyzing various pieces of information of the vehicle to obtain the working condition of the vehicle; the motorized seat belt 402 is controlled based on the operating conditions of the vehicle.
In an alternative embodiment, the motorized seatbelt includes: the safety seat comprises a safety mesh belt, a motor, a coiler, a sensor and a prompting device which are positioned on the safety mesh belt and a seat, and a belt buckle on the seat, wherein a lock tongue is arranged on the safety mesh belt and is matched with the belt buckle; the motor is meshed with the coiler through a gear, and the safety braid is wound on the coiler; a force sensing device is arranged in the retractor and is used for sensing the retracting force of the safety braid; the safety webbing includes a shoulder belt and a lap belt, and a sensor on the safety webbing is used to sense the position of the shoulder belt and the lap belt.
Example four
Based on the same inventive concept, a fourth embodiment of the present invention provides an electronic device, as shown in fig. 5, which includes a memory 504, a processor 502, and a computer program stored on the memory 504 and executable on the processor 502, where the processor 502 implements the steps of the electric seatbelt safety protection method when executing the program.
Where in fig. 5 a bus architecture (represented by bus 500) is shown, bus 500 may include any number of interconnected buses and bridges, and bus 500 links together various circuits including one or more processors, represented by processor 502, and memory, represented by memory 504. The bus 500 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 506 provides an interface between the bus 500 and the receiver 501 and transmitter 503. The receiver 501 and the transmitter 503 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 502 is responsible for managing the bus 500 and general processing, and the memory 504 may be used for storing data used by the processor 502 in performing operations.
EXAMPLE five
Based on the same inventive concept, a fifth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the electric seatbelt safety protection method described above.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of the motorized safety belt safety guard, electronic device, and the like in accordance with embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (9)

1. An electric seat belt safety protection method applied to a vehicle with an electric seat belt system is characterized by comprising the following steps:
various items of information of the vehicle are collected, including: an electric signal of a buckle end of an electric safety belt, speed, angular speed and acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and the seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle;
analyzing various items of information of the vehicle to obtain the working condition of the vehicle, wherein the working condition comprises the following steps:
analyzing various items of information of the vehicle, and when the electric signal at the buckle end displays that a lock tongue is inserted:
on the premise that the forward speed of the vehicle reaches a first preset speed and the deviation angle of a seat and a longitudinal center line of the vehicle meets a first preset angle range, when the variation of a brake pedal reaches a first preset variation or the forward acceleration of the vehicle reaches a first preset acceleration, obtaining a first working condition that the vehicle is in emergency horizontal braking and the seat faces a non-complete backward direction;
on the premise that the forward speed of the vehicle reaches a second preset speed and the deviation angle of a seat and the longitudinal center line of the vehicle meets a second preset angle range, when the variation of the accelerator pedal reaches a second preset variation or the forward acceleration of the vehicle reaches a second preset acceleration, obtaining a second working condition that the vehicle is rapidly accelerated at an emergency level and the seat faces the incomplete forward direction;
when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular speed of the vehicle rotating around the X axis is smaller than the first preset angular speed, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range, obtaining a third working condition that the vehicle is in transverse rapid movement and the direction of the seat is not completely forward to the movement direction;
when the acceleration of the vehicle along the Z axis reaches a fourth preset acceleration, obtaining a fourth working condition that the vehicle is in rapid descending;
the locking tongue of the electric safety belt is just inserted into a buckle, and a fifth working condition that the vehicle is just inserted into the buckle is obtained;
when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed, the second preset angular speed is larger than the first preset angular speed, and a sixth working condition that the vehicle is about to turn on one side is obtained;
when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed, acquiring a seventh working condition that the vehicle is about to turn over front and back;
when the vehicle is in a lane offset state, acquiring an eighth working condition that the vehicle has lane offset;
when the speed of the vehicle reaches a third preset speed and is less than a fourth preset speed, and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle meets a corresponding threshold interval, acquiring a ninth working condition that the vehicle is in ordinary rapid turning;
when the vehicle speed of the vehicle reaches the fourth preset speed and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle is greater than or equal to the upper limit value of the threshold interval corresponding to the vehicle, obtaining a tenth working condition that the vehicle is in extremely fast turning;
when a sensor on the electric safety belt detects that the distance between a shoulder belt or a waist belt and the seat does not meet the corresponding preset distance, acquiring an eleventh working condition that the vehicle is not worn correctly by the electric safety belt;
obtaining a twelfth working condition that the vehicle is about to collide when the vehicle is about to collide;
analyzing various information of the vehicle, and when the electric signal of the buckle end shows that the lock tongue leaves the buckle end: obtaining that the vehicle is in a thirteenth working condition that the electric safety belt is just unbuckled when a lock tongue of the electric safety belt is just unbuckled;
and controlling the electric safety belt based on the working condition of the vehicle.
2. The method of claim 1, wherein after controlling the motorized seat belt based on the operating condition of the vehicle, further comprising:
and controlling the vehicle to recover to a standby state so as to continuously acquire various information of the vehicle.
3. The method of claim 1, wherein the electric seat belt is controlled based on a condition of the vehicle;
controlling the electric safety belt to tighten the safety webbing in the form of a first preset force under any one of the following working conditions:
the vehicle is in the third operating condition, the vehicle is in the sixth operating condition, the vehicle is in the seventh operating condition, and the vehicle is in the twelfth operating condition;
the first preset force is in the form of: the opening time range of the first preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, and the interval time range is 0s-1 s;
controlling the electric safety belt to tighten the safety belt in the form of second preset force under any one of the following working conditions:
the vehicle is in the tenth operating condition;
the second preset force is in the form of: the opening time range of the second preset force is 0s-1s, the duration time range is 2s-10s, the repetition times are 0-10 times, the interval time range is 0s-1s, and the force of the second preset force is smaller than that of the first preset force;
controlling the electric safety belt to tighten the safety webbing in the form of third preset force under any one of the following working conditions:
the vehicle is in the first working condition, the vehicle is in the second working condition, the vehicle is in the fourth working condition, and the vehicle is in the ninth working condition;
the third predetermined force is in the form of: the opening time range of the third preset force is 0s-0.5s, the duration time range is 1s-7s, the repetition times are 0-5 times, the interval time range is 0s-1s, and the force of the third preset force is smaller than that of the second preset force;
when the vehicle is in the following working condition, controlling the electric safety belt to tighten the safety belt webbing in a fourth preset force mode, or controlling a vibrator on the electric safety belt to vibrate:
the vehicle is in the eighth working condition;
the fourth predetermined force is in the form of: the fourth preset force is intermittent vibration prompting force, the opening time range of the fourth preset force is 0s-0.5s, the duration time range of the fourth preset force is 0.2s-1s, the repetition times are 1-12 times, the interval time range is 0s-1.5s, and the force of the fourth preset force is smaller than that of the third preset force;
controlling the electric safety belt to tighten the safety belt webbing in a fifth preset force mode when the vehicle is in the following working condition:
the vehicle is in the fifth operating condition;
the fifth preset force is in the form of: the opening time range of the fifth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1 time to 3 times, the interval time range is 0s-5s, and the force of the fifth preset force is smaller than that of the fourth preset force;
when the vehicle is in the following working condition, controlling the electric safety belt to perform vibration prompt in a sixth preset force mode:
the vehicle is in the eleventh operating condition;
the starting time range of the vibration prompt in the form of the sixth preset force is 0s-1s, the duration time range is 0.5s-3s, the repetition times are 1-12 times, the interval time range is 0s-5s, and the force of the sixth preset force is the same as that of the fourth preset force;
controlling the electric safety belt to tighten the safety belt webbing in a seventh preset force mode when the vehicle is in the following working condition:
the vehicle is in the thirteenth operating condition;
the seventh preset force is in the form of: the opening time range of the seventh preset force is 0s-2s, the duration time range is 0.5s-3s, the repetition times are 1 time to 3 times, the interval time range is 0s-5s, and the force of the seventh preset force is smaller than that of the fifth preset force.
4. The method of claim 1, further comprising:
and when a signal for furling the safety mesh belt is received, if a signal for stopping furling the safety mesh belt is received at the same time, controlling to stop furling the safety mesh belt.
5. An electric safety belt safety guard, comprising:
the collection module is used for collecting various items of information of the vehicle, and comprises: an electric signal of a buckle end of an electric safety belt, speed, angular speed, acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and a seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle;
the working condition obtaining module is used for analyzing various information of the vehicle to obtain the working condition of the vehicle; the working condition obtaining module is used for analyzing various items of information of the vehicle, and when the electric signal at the buckle end displays that the lock tongue is inserted: on the premise that the forward speed of the vehicle reaches a first preset speed and the deviation angle of a seat and a longitudinal center line of the vehicle meets a first preset angle range, when the variation of a brake pedal reaches a first preset variation or the forward acceleration of the vehicle reaches a first preset acceleration, obtaining a first working condition that the vehicle is in emergency horizontal braking and the seat faces a non-complete backward direction; on the premise that the forward speed of the vehicle reaches a second preset speed and the deviation angle of a seat and the longitudinal center line of the vehicle meets a second preset angle range, when the variation of the accelerator pedal reaches a second preset variation or the forward acceleration of the vehicle reaches a second preset acceleration, obtaining a second working condition that the vehicle is rapidly accelerated at an emergency level and the seat faces the incomplete forward direction; when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular speed of the vehicle rotating around the X axis is smaller than the first preset angular speed, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range, obtaining a third working condition that the vehicle is in transverse rapid movement and the direction of the seat is not completely forward to the movement direction; when the acceleration of the vehicle along the Z axis reaches a fourth preset acceleration, obtaining a fourth working condition that the vehicle is in rapid descending; the locking tongue of the electric safety belt is just inserted into a buckle, and a fifth working condition that the vehicle is just inserted into the buckle is obtained; when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed, the second preset angular speed is larger than the first preset angular speed, and a sixth working condition that the vehicle is about to turn on one side is obtained; when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed, acquiring a seventh working condition that the vehicle is about to turn over front and back; when the vehicle is in a lane offset state, acquiring an eighth working condition that the vehicle has lane offset; when the speed of the vehicle reaches a third preset speed and is less than a fourth preset speed, and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle meets a corresponding threshold interval, acquiring a ninth working condition that the vehicle is in ordinary rapid turning; when the vehicle speed of the vehicle reaches the fourth preset speed and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle is greater than or equal to the upper limit value of the threshold interval corresponding to the vehicle, obtaining a tenth working condition that the vehicle is in extremely fast turning; when a sensor on the electric safety belt detects that the distance between a shoulder belt or a waist belt and the seat does not meet the corresponding preset distance, acquiring an eleventh working condition that the vehicle is not worn correctly by the electric safety belt; obtaining a twelfth working condition that the vehicle is about to collide when the vehicle is about to collide; analyzing various information of the vehicle, and when the electric signal of the buckle end shows that the lock tongue leaves the buckle end: obtaining that the vehicle is in a thirteenth working condition that the electric safety belt is just unbuckled when a lock tongue of the electric safety belt is just unbuckled;
and the control module is used for controlling the electric safety belt based on the working condition of the vehicle.
6. An electric seat belt safety protection system, comprising:
an ECU control device, an electric seatbelt;
the ECU control device is used for collecting various pieces of information of the vehicle, and comprises: an electric signal of a buckle end of an electric safety belt, speed, angular speed, acceleration information of the vehicle on an X axis, a Y axis and a Z axis, seat angle information, brake pedal information, accelerator pedal information, information of sensors on the electric safety belt and a seat, lane offset information, front collision warning information and steering information of the vehicle, wherein the direction of the X axis is parallel to the front-back direction of the vehicle, the direction of the Y axis is parallel to the left-right direction of the vehicle, and the direction of the Z axis is parallel to the up-down direction of the vehicle; analyzing various items of information of the vehicle to obtain the working condition of the vehicle, wherein the working condition comprises the following steps: analyzing various items of information of the vehicle, and when the electric signal at the buckle end displays that a lock tongue is inserted: on the premise that the forward speed of the vehicle reaches a first preset speed and the deviation angle of a seat and a longitudinal center line of the vehicle meets a first preset angle range, when the variation of a brake pedal reaches a first preset variation or the forward acceleration of the vehicle reaches a first preset acceleration, obtaining a first working condition that the vehicle is in emergency horizontal braking and the seat faces a non-complete backward direction; on the premise that the forward speed of the vehicle reaches a second preset speed and the deviation angle of a seat and the longitudinal center line of the vehicle meets a second preset angle range, when the variation of the accelerator pedal reaches a second preset variation or the forward acceleration of the vehicle reaches a second preset acceleration, obtaining a second working condition that the vehicle is rapidly accelerated at an emergency level and the seat faces the incomplete forward direction; when the transverse acceleration of the vehicle reaches a third preset acceleration, the angular speed of the vehicle rotating around the X axis is smaller than the first preset angular speed, and the deviation angle of the seat and the longitudinal center line of the vehicle meets a third preset angle range, obtaining a third working condition that the vehicle is in transverse rapid movement and the direction of the seat is not completely forward to the movement direction; when the acceleration of the vehicle along the Z axis reaches a fourth preset acceleration, obtaining a fourth working condition that the vehicle is in rapid descending; the locking tongue of the electric safety belt is just inserted into a buckle, and a fifth working condition that the vehicle is just inserted into the buckle is obtained; when the angular speed of the vehicle rotating around the X axis reaches a second preset angular speed, the second preset angular speed is larger than the first preset angular speed, and a sixth working condition that the vehicle is about to turn on one side is obtained; when the angular speed of the vehicle rotating around the Y axis reaches a third preset angular speed, acquiring a seventh working condition that the vehicle is about to turn over front and back; when the vehicle is in a lane offset state, acquiring an eighth working condition that the vehicle has lane offset; when the speed of the vehicle reaches a third preset speed and is less than a fourth preset speed, and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle meets a corresponding threshold interval, acquiring a ninth working condition that the vehicle is in ordinary rapid turning; when the vehicle speed of the vehicle reaches the fourth preset speed and any one of three parameters of a steering angle, a steering angular velocity and a yaw angular velocity of the vehicle is greater than or equal to the upper limit value of the threshold interval corresponding to the vehicle, obtaining a tenth working condition that the vehicle is in extremely fast turning; when a sensor on the electric safety belt detects that the distance between a shoulder belt or a waist belt and the seat does not meet the corresponding preset distance, acquiring an eleventh working condition that the vehicle is not worn correctly by the electric safety belt; obtaining a twelfth working condition that the vehicle is about to collide when the vehicle is about to collide; analyzing various information of the vehicle, and when the electric signal of the buckle end shows that the lock tongue leaves the buckle end: obtaining that the vehicle is in a thirteenth working condition that the electric safety belt is just unbuckled when a lock tongue of the electric safety belt is just unbuckled; and controlling the electric safety belt based on the working condition of the vehicle.
7. The system of claim 6, wherein the motorized seatbelt comprises:
the safety seat comprises a safety mesh belt, a motor, a retractor, a main sensor positioned on the seat, a corresponding sensing device on the safety mesh belt and a belt buckle on the seat, wherein a lock tongue is arranged on the safety mesh belt and is matched with the belt buckle;
the motor is meshed with the retractor through a gear, and the safety braid is wound on the retractor;
a force sensor is arranged in the retractor and used for sensing the retraction force of the safety braid;
the safety webbing comprises a shoulder belt and a waist belt, and the sensing device on the safety webbing is matched with the main sensor to sense the positions of the shoulder belt and the waist belt.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-4 when executing the program.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 4.
CN202011484062.6A 2020-12-15 2020-12-15 Safety protection method, device and system for electric safety belt Active CN112606786B (en)

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CN1970353A (en) * 2005-11-24 2007-05-30 高田株式会社 Safety belt recoiler, safety belt device, vehicle possessing safety belt device
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CN109941219A (en) * 2017-12-20 2019-06-28 现代自动车株式会社 Device and method for controlling vehicle active safety band
CN110103871A (en) * 2019-04-30 2019-08-09 浙江吉利控股集团有限公司 A kind of vehicle early warning method based on safety belt, device, equipment and terminal
DE102018103289A1 (en) * 2018-02-14 2019-08-14 Autoliv Development Ab Seatbelt assembly, vehicle seat and motor vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1970353A (en) * 2005-11-24 2007-05-30 高田株式会社 Safety belt recoiler, safety belt device, vehicle possessing safety belt device
CN203601209U (en) * 2013-10-11 2014-05-21 天津职业技术师范大学 Intelligent control type vehicle safety belt active pretightening device
CN109941219A (en) * 2017-12-20 2019-06-28 现代自动车株式会社 Device and method for controlling vehicle active safety band
CN207955628U (en) * 2017-12-28 2018-10-12 南京航空航天大学 It is a kind of to lead passively integrated multistage belt with pre-load device control system
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