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WO2023232041A1 - Method for occupant protection and occupant protection system - Google Patents

Method for occupant protection and occupant protection system Download PDF

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Publication number
WO2023232041A1
WO2023232041A1 PCT/CN2023/097187 CN2023097187W WO2023232041A1 WO 2023232041 A1 WO2023232041 A1 WO 2023232041A1 CN 2023097187 W CN2023097187 W CN 2023097187W WO 2023232041 A1 WO2023232041 A1 WO 2023232041A1
Authority
WO
WIPO (PCT)
Prior art keywords
occupant
occupant protection
seat
body characteristic
protection system
Prior art date
Application number
PCT/CN2023/097187
Other languages
French (fr)
Inventor
Mingjun Yang
Tao Ding
Original Assignee
Mercedes-Benz Group AG
Mercedes-Benz Group China Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mercedes-Benz Group AG, Mercedes-Benz Group China Ltd. filed Critical Mercedes-Benz Group AG
Publication of WO2023232041A1 publication Critical patent/WO2023232041A1/en

Links

Classifications

    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01538—Passenger detection systems using field detection presence sensors for image processing, e.g. cameras or sensor arrays
    • 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
    • B60R21/015—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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01554—Seat position sensors
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection

Definitions

  • the present disclosure relates to a method for occupant protection, an occupant protection system, and a motor vehicle with such an occupant protection system.
  • the existing side airbag restraint systems are developed for specific sitting positions and postures, the size and mounting position of airbags are fixed, which cannot adapt to the increasingly diversified sitting postures arising with the development of intelligent vehicles.
  • the current side curtain airbags cannot cover the area below the lower edge of the car window, and as a result, after the occupant adjusts the inclination of the seat by a large angle, the protective effect of curtain airbags will be greatly reduced or the curtain airbags cannot provide any effective protection; in addition, when the occupant lies down, the change of his/her sitting position will cause the protection of seat-side airbags to displace away from the critical body parts of the occupant that are vulnerable to injuries.
  • the half-lying posture is more common in the co-driver’s seat but is less common in the driver’s seat, since the driver needs to drive and operate.
  • the hands and feet of drivers will be gradually freed, so a restraint system that is applicable to both traditional and future sitting postures becomes necessary. Therefore, a new challenge is posed for occupant protection to adapt to different sitting postures.
  • a method for occupant protection of a motor vehicle comprising the following steps:
  • S1 acquiring body characteristic information of an occupant and seat position information
  • This provides the advantage that an optimal airbag position for occupant protection can be obtained via adjustments made based on the body type characteristics of the occupant and the current position and state of the vehicle seat, such as an upright sitting posture, a lying-down or half-lying position of the co-driver’s seat, or a lying-down or half-lying position of the driver’s seat during automated driving.
  • the method further comprises:
  • the body characteristic information includes height, weight, body size, gender and/or age of the occupant.
  • the seat position information includes the position, the height of a cushion and/or the inclination of a backrest of a vehicle seat.
  • the method further comprises:
  • an occupant protection system for a motor vehicle for implementing the method according to the first aspect of the disclosure, wherein the occupant protection system at least comprises:
  • the sensor system is configured to be suitable for detecting the body characteristic information of an occupant and/or the seat position information
  • the actuator is configured to be suitable for moving the position of each of the airbags
  • analysis and control unit configured to be suitable for calculating the optimal protective position for each of the airbags based on the body characteristic information and/or the seat position information, such that the actuator is controlled to adjust the position of each of the airbags to the optimal protective position.
  • the airbag is a side airbag.
  • the component of the motor vehicle is a vehicle seat.
  • the sensor system comprises:
  • the body characteristic sensor is configured to be suitable for detecting height, body size, gender, age, position and/or posture of the occupant
  • the seat position sensor is particularly arranged in a vehicle seat, wherein the seat position sensor is configured to be suitable for detecting the position, the height of the cushion and/or the inclination of the backrest of the vehicle seat;
  • the seat pressure sensors are arranged at various parts of the vehicle seat, and wherein the seat pressure sensors are configured to be suitable for detecting pressures on each part of the vehicle seat.
  • the body characteristic sensor is configured to be suitable for running face recognition on the occupant.
  • the analysis and control unit is able to determine a sitting posture of the occupant according to the detected position, the height of the cushion, the inclination of the backrest and/or the pressure of the vehicle seat.
  • the actuator comprises a sliding rail and a slider arranged on the sliding rail, wherein the airbag is fixedly connected to the slider, and wherein the airbag is able to be driven to move along the sliding rail via the slider.
  • the occupant protection system comprises an input device, wherein the body characteristic information can be manually input into the analysis and control unit through the input device.
  • the occupant protection system comprises an indication device, wherein the indication device is configured to be suitable for indicating the current position of each of the airbags in a visual, auditory and/or tactile manner, wherein the indication device particularly comprises a vehicle dashboard, a loudspeaker and/or a vibration feedback device.
  • a motor vehicle comprising the occupant protection system according to the second aspect of the disclosure for implementing the method for occupant protection of a motor vehicle according to the first aspect of the disclosure.
  • the position of the side airbag restraint system can be dynamically adjusted according to different body sizes of the occupants and the positions of the seats, thereby achieving an optimal occupant protection strategy.
  • FIG. 1 schematically shows a schematic view of an interior of a motor vehicle 100 according to the disclosure, wherein airbags 11, 12, 13 are shown in a triggered state.
  • FIG. 2 schematically shows a system block diagram of an occupant protection system 1 for a motor vehicle 100 according to the disclosure.
  • FIG. 3 schematically shows a vehicle seat 10 in a motor vehicle 100 according to the disclosure, wherein an occupant P is seated in the vehicle seat 10.
  • FIG. 4 schematically shows a detailed view of an actuator 30.
  • FIG. 5 schematically shows a flow chart of a method for occupant protection of a motor vehicle 100 according to the disclosure.
  • FIG. 1 schematically shows a schematic view of an interior of a motor vehicle 100 according to the disclosure, wherein airbags 11, 12, 13 are shown in a triggered state.
  • airbags 11, 12, 13, particularly side airbags such as a head airbag 11 and lumbar airbags 12 and 13, are arranged in respective vehicle seats 10.
  • the airbags it is also conceivable for the airbags to be arranged in other components of the motor vehicle 100, for example, in the body, the roof, the doors, or the like of the vehicle.
  • FIG. 2 schematically shows a system block diagram of an occupant protection system 1 for a motor vehicle 100 according to the disclosure.
  • the occupant protection system 1 comprises a sensor system 20, wherein the sensor system 20 is configured to be suitable for detecting the body characteristic information of an occupant P and/or the seat position information.
  • the body characteristic information of the occupant P includes height, weight, body size, gender, age, position and/or posture of the occupant P.
  • the seat position information includes, for example, the position, the height of a cushion and/or the inclination of a backrest of the vehicle seat 10.
  • the occupant protection system 1 comprises an actuator 30, wherein the actuator 30 is configured to be suitable for moving the position of each of the airbags 11, 12, 13.
  • the occupant protection system 1 further comprises an analysis and control unit 40, wherein the analysis and control unit 40 is configured to be suitable for calculating an optimal protective position for each of the airbags 11, 12, 13 based on the body characteristic information of the occupant P and/or the seat position information, so that the actuator 30 is controlled to adjust the position of each of the airbags 11, 12, 13 to the optimal protective position.
  • the occupant protection system 1 further comprises an input device 50, wherein the body characteristic information can be manually input into the analysis and control unit 40 through the input device 50.
  • the occupant protection system 1 further comprises an indication device 60, such as a vehicle dashboard, which is used for displaying the current position of each of the airbags 11, 12, 13.
  • FIG. 3 schematically shows a vehicle seat 10 in a motor vehicle 100 according to the disclosure, wherein an occupant P is seated in the vehicle seat 10.
  • the sensor system 20 comprises a body characteristic sensor 21, wherein the body characteristic sensor 21 is configured to be suitable for detecting height, body size, gender, age, position and/or posture of the occupant P.
  • the body characteristic sensor 21 is configured to be suitable for running face recognition on the occupant P.
  • the body characteristic sensor 21 is a scanning camera.
  • the sensor system 20 further comprises a seat position sensor 22 arranged in the vehicle seat 10.
  • the seat position sensor 22 is configured to be suitable for detecting the position, the height of a cushion and/or the inclination of a backrest of the vehicle seat 10.
  • the sensor system 20 further comprises a seat pressure sensor 23, such as a headrest pressure sensor arranged in a seat headrest and/or a cushion pressure sensor arranged in a cushion.
  • the seat pressure sensors 23 are configured to be suitable for detecting pressures on each part of the vehicle seat.
  • the analysis and control unit 40 is able to determine a sitting posture of the occupant P according to the detected position, the height of the cushion, the inclination of the backrest and/or the pressure of the vehicle seat 10.
  • FIG. 4 schematically shows a detailed view of an actuator 30.
  • the actuator comprises a sliding rail 31 and a slider 32 arranged on the sliding rail 31, each of the airbags 11, 12, 13 is fixedly connected to the slider 32.
  • each of the airbags 11, 12, 13 is able to be driven to move along the sliding rail 31 via the slider 32.
  • FIG. 5 schematically shows a flow chart of a method for occupant protection of a motor vehicle 100 according to the disclosure. The method comprises the following steps:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Air Bags (AREA)

Abstract

The present disclosure relates to a method for occupant protection of a motor vehicle (100), wherein the method comprises the following steps: S1: acquiring body characteristic information of an occupant (P) and seat position information; S2: calculating an optimal protective position for each of airbags (11, 12, 13) according to the body characteristic information and the seat position information; S3: adjusting the position of each of the airbags (11, 12, 13) to the optimal protective position. The disclosure further relates to an occupant protection system (1) for a motor vehicle (100) and a motor vehicle (100). Through some embodiments of the invention, the position of the side airbag restraint system can be dynamically adjusted according to different body sizes of the occupants and the positions of the seats, thereby achieving an optimal occupant protection strategy.

Description

METHOD FOR OCCUPANT PROTECTION AND OCCUPANT PROTECTION SYSTEM TECHNICAL FIELD
The present disclosure relates to a method for occupant protection, an occupant protection system, and a motor vehicle with such an occupant protection system.
BACKGROUND ART
In current motor vehicles, as the existing side airbag restraint systems are developed for specific sitting positions and postures, the size and mounting position of airbags are fixed, which cannot adapt to the increasingly diversified sitting postures arising with the development of intelligent vehicles. For example, the current side curtain airbags cannot cover the area below the lower edge of the car window, and as a result, after the occupant adjusts the inclination of the seat by a large angle, the protective effect of curtain airbags will be greatly reduced or the curtain airbags cannot provide any effective protection; in addition, when the occupant lies down, the change of his/her sitting position will cause the protection of seat-side airbags to displace away from the critical body parts of the occupant that are vulnerable to injuries.
At present, the half-lying posture is more common in the co-driver’s seat but is less common in the driver’s seat, since the driver needs to drive and operate. However, with the gradual popularization of automated driving and the development of advanced technology, the hands and feet of drivers will be gradually freed, so a restraint system that is applicable to both traditional and future sitting postures becomes necessary. Therefore, a new challenge is posed for occupant protection to adapt to different sitting postures.
SUMMARY OF THE INVENTION
It is an object of the disclosure to provide an improved method for occupant protection, an improved occupant protection system and a motor vehicle with such an improved occupant protection system in order to solve at least part of the problems present in the prior art.
According to a first aspect of the disclosure, a method for occupant protection of a motor vehicle is provided, wherein the method comprises the following steps:
S1: acquiring body characteristic information of an occupant and seat position information;
S2: calculating an optimal protective position for each of airbags according to the body characteristic information and the seat position information;
S3: adjusting the position of each of the airbags to the optimal protective position.
This provides the advantage that an optimal airbag position for occupant protection can be obtained via adjustments made based on the body type characteristics of the occupant and the current position and state of the vehicle seat, such as an upright sitting posture, a lying-down or half-lying position of the co-driver’s seat, or a lying-down or half-lying position of the driver’s seat during automated driving.
According to an alternative embodiment of the disclosure, the method further comprises:
S0: running face recognition on the occupant,
- reading the entered body characteristic information, if the body characteristic information of the identified occupant has already been entered,
- manually inputting and/or detecting the body characteristic information of the occupant and storing the body characteristic information, if the body characteristic information of the identified occupant has not been entered.
According to an alternative embodiment of the disclosure, the body characteristic information includes height, weight, body size, gender and/or age of the occupant.
According to an alternative embodiment of the disclosure, the seat position information includes the position, the height of a cushion and/or the inclination of a backrest of a vehicle seat.
According to an alternative embodiment of the disclosure, the method further comprises:
S4: indicating the current position of each of the airbags in a visual, auditory and/or tactile manner.
According to a second aspect of the disclosure, an occupant protection system for a motor vehicle for implementing the method according to the first aspect of the disclosure is provided, wherein the occupant protection system at least comprises:
- at least one airbag, wherein the airbags are arranged in a component of the motor vehicle;
- a sensor system, wherein the sensor system is configured to be suitable for detecting the body characteristic information of an occupant and/or the seat position information;
- an actuator, wherein the actuator is configured to be suitable for moving the position of each of the airbags; and
- an analysis and control unit, wherein the analysis and control unit is configured to be suitable for calculating the optimal protective position for each of the airbags based on the body characteristic information and/or the seat position information, such that the actuator is controlled to adjust the position of each of the airbags to the optimal protective position.
According to an alternative embodiment of the disclosure, the airbag is a side airbag.
According to an alternative embodiment of the disclosure, the component of the motor vehicle is a vehicle seat.
According to an alternative embodiment of the disclosure, the sensor system comprises:
- a body characteristic sensor, wherein the body characteristic sensor is configured to be suitable for detecting height, body size, gender, age, position and/or posture of the occupant;
- a seat position sensor, wherein the seat position sensor is particularly arranged in a vehicle seat, wherein the seat position sensor is configured to be suitable for detecting the position, the height of the cushion and/or the inclination of the backrest of the vehicle seat; and
- at least one seat pressure sensor, wherein the seat pressure sensors are arranged at various parts of the vehicle seat, and wherein the seat pressure sensors are configured to be suitable for detecting pressures on each part of the vehicle seat.
According to an alternative embodiment of the disclosure, the body characteristic sensor is configured to be suitable for running face recognition on the occupant.
According to an alternative embodiment of the disclosure, the analysis and control unit is able to determine a sitting posture of the occupant according to the detected position, the height of the cushion, the inclination of the backrest and/or the pressure of the vehicle seat.
According to an alternative embodiment of the disclosure, the actuator comprises a sliding rail and a slider arranged on the sliding rail, wherein the airbag is fixedly connected to the slider, and wherein the airbag is able to be driven to move along the sliding rail via the slider.
According to an alternative embodiment of the disclosure, the occupant protection system comprises an input device, wherein the body characteristic information can be manually input into the analysis and control unit through the input device.
According to an alternative embodiment of the disclosure, the occupant protection system comprises an indication device, wherein the indication device is configured to be suitable for indicating the current position of each of the airbags in a visual, auditory and/or tactile manner, wherein the indication device particularly comprises a vehicle dashboard, a loudspeaker and/or a vibration feedback device.
According to a third aspect of the disclosure, a motor vehicle is provided, wherein the motor vehicle comprises the occupant protection system according to the second aspect of the  disclosure for implementing the method for occupant protection of a motor vehicle according to the first aspect of the disclosure.
Through some embodiments of the invention, the position of the side airbag restraint system can be dynamically adjusted according to different body sizes of the occupants and the positions of the seats, thereby achieving an optimal occupant protection strategy.
BRIEF DESCRIPTION OF THE DRAWINGS
The principles, characteristics and advantages of the disclosure can be better understood by describing the disclosure in greater detail with reference to the accompany drawings, in which:
FIG. 1 schematically shows a schematic view of an interior of a motor vehicle 100 according to the disclosure, wherein airbags 11, 12, 13 are shown in a triggered state.
FIG. 2 schematically shows a system block diagram of an occupant protection system 1 for a motor vehicle 100 according to the disclosure.
FIG. 3 schematically shows a vehicle seat 10 in a motor vehicle 100 according to the disclosure, wherein an occupant P is seated in the vehicle seat 10.
FIG. 4 schematically shows a detailed view of an actuator 30.
FIG. 5 schematically shows a flow chart of a method for occupant protection of a motor vehicle 100 according to the disclosure.
DETAILED DESCRIPTION OF EMBODIMENTS
For a clearer understanding of the technical problems to be solved, technical solutions and advantageous technical effects of the present disclosure, the disclosure will be further elaborated below in conjunction with the drawings and a number of exemplary embodiments. It is to be understood that the specific embodiments described here are simply for explaining the disclosure, rather than limiting the scope of protection of the disclosure.
FIG. 1 schematically shows a schematic view of an interior of a motor vehicle 100 according to the disclosure, wherein airbags 11, 12, 13 are shown in a triggered state. As shown in FIG. 1, airbags 11, 12, 13, particularly side airbags such as a head airbag 11 and lumbar airbags 12 and 13, are arranged in respective vehicle seats 10. However, it is also conceivable for the airbags to be arranged in other components of the motor vehicle 100, for example, in the body,  the roof, the doors, or the like of the vehicle.
FIG. 2 schematically shows a system block diagram of an occupant protection system 1 for a motor vehicle 100 according to the disclosure. As shown in FIG. 2, the occupant protection system 1 comprises a sensor system 20, wherein the sensor system 20 is configured to be suitable for detecting the body characteristic information of an occupant P and/or the seat position information. Here, the body characteristic information of the occupant P includes height, weight, body size, gender, age, position and/or posture of the occupant P. Here, the seat position information includes, for example, the position, the height of a cushion and/or the inclination of a backrest of the vehicle seat 10. Furthermore, the occupant protection system 1 comprises an actuator 30, wherein the actuator 30 is configured to be suitable for moving the position of each of the airbags 11, 12, 13. The occupant protection system 1 further comprises an analysis and control unit 40, wherein the analysis and control unit 40 is configured to be suitable for calculating an optimal protective position for each of the airbags 11, 12, 13 based on the body characteristic information of the occupant P and/or the seat position information, so that the actuator 30 is controlled to adjust the position of each of the airbags 11, 12, 13 to the optimal protective position. Additionally, the occupant protection system 1 further comprises an input device 50, wherein the body characteristic information can be manually input into the analysis and control unit 40 through the input device 50. Additionally, the occupant protection system 1 further comprises an indication device 60, such as a vehicle dashboard, which is used for displaying the current position of each of the airbags 11, 12, 13.
FIG. 3 schematically shows a vehicle seat 10 in a motor vehicle 100 according to the disclosure, wherein an occupant P is seated in the vehicle seat 10. As shown in FIG. 3, the sensor system 20 comprises a body characteristic sensor 21, wherein the body characteristic sensor 21 is configured to be suitable for detecting height, body size, gender, age, position and/or posture of the occupant P. Particularly, the body characteristic sensor 21 is configured to be suitable for running face recognition on the occupant P. Optionally, the body characteristic sensor 21 is a scanning camera. In addition, the sensor system 20 further comprises a seat position sensor 22 arranged in the vehicle seat 10. Here, the seat position sensor 22 is configured to be suitable for detecting the position, the height of a cushion and/or the inclination of a backrest of the vehicle seat 10. In addition, the sensor system 20 further comprises a seat pressure sensor 23, such as a headrest pressure sensor arranged in a seat headrest and/or a cushion pressure sensor arranged in a cushion. Here, the seat pressure sensors 23 are configured to be suitable for detecting pressures on each part of the vehicle seat. Optionally, the analysis and control unit 40 is able to determine a sitting posture of the occupant P according to the detected position, the height of the cushion, the inclination of the  backrest and/or the pressure of the vehicle seat 10.
FIG. 4 schematically shows a detailed view of an actuator 30. As shown in FIG. 4, the actuator comprises a sliding rail 31 and a slider 32 arranged on the sliding rail 31, each of the airbags 11, 12, 13 is fixedly connected to the slider 32. Here, each of the airbags 11, 12, 13 is able to be driven to move along the sliding rail 31 via the slider 32.
FIG. 5 schematically shows a flow chart of a method for occupant protection of a motor vehicle 100 according to the disclosure. The method comprises the following steps:
S0: running face recognition on an occupant P,
- reading the entered body characteristic information, if the body characteristic information of the identified occupant P has already been entered,
- manually inputting and/or detecting the body characteristic information of the occupant P and storing the body characteristic information, if the body characteristic information of the identified occupant P has not been entered;
S1: acquiring the body characteristic information of the occupant P and the seat position information;
S2: calculating an optimal protective position for each of airbags 11, 12, 13 according to the body characteristic information and the seat position information;
S3: adjusting the position of each of the airbags 11, 12, 13 to the optimal protective position;
S4:indicating the current position of each of the airbags 11, 12, 13 in a visual, auditory and/or tactile manner.
In the drawings, the size of each of the components, the thickness of layers or the areas are sometimes exaggerated for the sake of clarity. Therefore, the shape and size of each of the components in the drawings do not reflect the actual proportions.
In addition, when describing representative embodiments, the description may have presented a method and/or process as a specific sequence of steps. However, to the extent that the method or process is independent of the specific sequence of steps described herein, the method or process should not be limited to the specific sequence of steps described. Other sequences of steps are also possible, as will be understood by those of ordinary skill in the art. Therefore, the specific sequence of steps set forth in the description should not be construed as limitations on the claims. In addition, claims for the method and/or process should not be limited to performing the respective steps in the written sequence. Those skilled in the art can readily understand that these sequences may vary, which still remain within the spirit and scope of the embodiments of the present disclosure.
While specific embodiments of the disclosure have been described in detail here, they have been presented for the purpose of interpretation only and should not be considered as limitations on the scope of the disclosure. Various substitutions, changes and modifications can be devised without deviating from the spirit and scope of the disclosure.

Claims (15)

  1. A method for occupant protection of a motor vehicle (100) , wherein the method comprises the following steps:
    S1: acquiring body characteristic information of an occupant (P) and seat position information;
    S2: calculating an optimal protective position for each of airbags (11, 12, 13) according to the body characteristic information and the seat position information;
    S3: adjusting the position of each of the airbags (11, 12, 13) to the optimal protective position.
  2. The method according to claim 1, wherein the method further comprises:
    S0: running face recognition on the occupant (P) ,
    - reading the entered body characteristic information, if the body characteristic information of the identified occupant (P) has already been entered,
    - manually inputting and/or detecting the body characteristic information of the occupant (P) and storing the body characteristic information, if the body characteristic information of the identified occupant (P) has not been entered.
  3. The method according to claim 1 or 2, wherein
    the body characteristic information includes height, weight, body size, gender and/or age of the occupant (P) .
  4. The method according to any one of claims 1 to 3, wherein
    the seat position information includes the position, the height of a cushion, and/or the inclination of a backrest of a vehicle seat (10) .
  5. The method according to any one of claims 1 to 4, wherein the method further comprises:
    S4: indicating the current position of each of the airbags (11, 12, 13) in a visual, auditory and/or tactile manner.
  6. An occupant protection system (1) for a motor vehicle (100) for implementing the method according to any one of claims 1 to 5, wherein the occupant protection system (1) at least comprises:
    - at least one airbag (11, 12, 13) , wherein the airbags (11, 12, 13) are arranged in a component of the motor vehicle (100) ;
    - a sensor system (20) , wherein the sensor system (20) is configured to be suitable for detecting the body characteristic information of an occupant (P) and/or the seat position  information;
    - an actuator (30) , wherein the actuator (30) is configured to be suitable for moving the position of each of the airbags (11, 12, 13) ; and
    - an analysis and control unit (40) , wherein the analysis and control unit (40) is configured to be suitable for calculating the optimal protective position for each of the airbags (11, 12, 13) based on the body characteristic information and/or the seat position information, such that the actuator (30) is controlled to adjust the position of each of the airbags (11, 12, 13) to the optimal protective position.
  7. The occupant protection system (1) according to claim 6, wherein
    the airbag (11, 12, 13) is a side airbag (11, 12, 13) .
  8. The occupant protection system (1) according to claim 6 or 7, wherein
    the component of the motor vehicle (100) is a vehicle seat (10) .
  9. The occupant protection system (1) according to any one of claims 6 to 8, wherein the sensor system (20) comprises:
    - a body characteristic sensor (21) , wherein the body characteristic sensor (21) is configured to be suitable for detecting height, body size, gender, age, position and/or posture of the occupant (P) ;
    - a seat position sensor (22) , wherein the seat position sensor (22) is particularly arranged in the vehicle seat (10) , wherein the seat position sensor (22) is configured to be suitable for detecting the position, the height of the cushion and/or the inclination of the backrest of the vehicle seat (10) ; and
    - at least one seat pressure sensor (23) , wherein the seat pressure sensors (23) are arranged at various parts of the vehicle seat (10) , wherein the seat pressure sensors (23) are configured to be suitable for detecting pressures on each part of the vehicle seat (10) .
  10. The occupant protection system (1) according to claim 9, wherein
    the body characteristic sensor (21) is configured to be suitable for running face recognition on the occupant (P) .
  11. The occupant protection system (1) according to claim 9 or 10, wherein
    the analysis and control unit (40) is able to determine the sitting posture of the occupant (P) according to the detected position, the height of the cushion, the inclination of the backrest and/or the pressure of the vehicle seat (10) .
  12. The occupant protection system (1) according to any one of claims 6 to 11, wherein
    the actuator (30) comprises a sliding rail (31) and a slider (32) arranged on the sliding rail (31) , wherein the airbag (11, 12, 13) is fixedly connected to the slider (32) , wherein the airbag (11, 12, 13) is be able to be driven to move along the sliding rail (31) via the slider (32) .
  13. The occupant protection system (1) according to any one of claims 6 to 12, wherein the occupant protection system (1) comprises:
    an input device (50) , wherein the body characteristic information can be manually input into the analysis and control unit (40) through the input device (50) .
  14. The occupant protection system (1) according to any one of claims 6 to 13, wherein the occupant protection system (1) comprises:
    an indication device (60) , wherein the indication device (60) is configured to be suitable for indicating the current position of each of the airbags (11, 12, 13) in a visual, auditory and/or tactile manner, wherein the indication device (60) particularly comprises a vehicle dashboard, a loudspeaker and/or a vibration feedback device.
  15. A motor vehicle (100) , wherein the motor vehicle (100) comprises an occupant protection system (1) according to any one of claims 6 to 14 for implementing a method for occupant protection of a motor vehicle (100) according to any one of claims 1 to 5.
PCT/CN2023/097187 2022-06-02 2023-05-30 Method for occupant protection and occupant protection system WO2023232041A1 (en)

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