WO2023246318A1 - Procédé et appareil pour réduire une blessure d'un passager provoquée par un impact de pôle latéral d'un véhicule complet - Google Patents

Procédé et appareil pour réduire une blessure d'un passager provoquée par un impact de pôle latéral d'un véhicule complet Download PDF

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Publication number
WO2023246318A1
WO2023246318A1 PCT/CN2023/091964 CN2023091964W WO2023246318A1 WO 2023246318 A1 WO2023246318 A1 WO 2023246318A1 CN 2023091964 W CN2023091964 W CN 2023091964W WO 2023246318 A1 WO2023246318 A1 WO 2023246318A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
universal joint
base
coordinate
ecu
Prior art date
Application number
PCT/CN2023/091964
Other languages
English (en)
Chinese (zh)
Inventor
董嘉珩
马明辉
马驰
刘维海
吴祥君
倪春鹏
关荣博
樊家宝
赵佳乐
Original Assignee
中国第一汽车股份有限公司
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 中国第一汽车股份有限公司 filed Critical 中国第一汽车股份有限公司
Publication of WO2023246318A1 publication Critical patent/WO2023246318A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat
    • 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
    • B60R21/0134—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 responsive to imminent contact with an obstacle, e.g. using radar systems
    • 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
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision

Definitions

  • the invention belongs to the field of automobile technology, and specifically is a method and device for reducing injuries to occupants caused by side pillar collisions of the entire vehicle.
  • the invention provides a method and device for reducing injuries to occupants when a side pillar of a vehicle collides with them. It can be installed on different vehicle models, has strong adaptability and a wide range of applications. During the collision of the side pillar, it can quickly respond to the control signal sent by the ECU. In response, the seat posture is quickly adjusted to reduce injuries to the occupants in accidents.
  • a method for reducing injuries to occupants in collisions with side pillars of a vehicle including the following steps:
  • Step 1 When an accident occurs, the B-pillar acceleration sensor and door pressure sensor on the collision side of the car body sense the collision signal and transmit it to the car's electronic controller unit, the ECU;
  • Step 2 The automotive electronic controller unit (ECU) determines whether the collision signal meets the airbag ignition threshold
  • Step 3 If the collision signal meets the airbag ignition threshold, the automotive electronic controller unit, or ECU, controls the operation of the microcontroller at the lower part of the seat platform;
  • Step 4 The microcontroller reads the signal from the car's electronic controller unit, or ECU, and controls the coordinated movement of the six servo motors at the bottom of the seat platform to adjust the seat posture, so that the seat drives the occupants backward and away from the collision side. , reduce crew damage.
  • Step 5 After the accident occurs, the movement of the six electric cylinders is controlled by the microcontroller system to return the seat to normal use.
  • step two when a side collision accident occurs, the pressure sensor and acceleration sensor located in the door cavity of the car door will measure the pressure and acceleration values, and the ECU senses the pressure and acceleration, and based on safety Airbag ignition logic algorithm, judgment Whether the two collision signals meet the airbag ignition threshold, if they meet the ignition requirements, the ECU sends out the airbag ignition requirements.
  • step three when the collision signal meets the airbag ignition threshold and the ignition signal is sent, the ECU simultaneously sends a control signal to the single-chip computer at the bottom of the seat platform, and controls the operation of the six electric cylinders through the single-chip computer, thereby adjusting the seat. chair posture to reduce occupant injuries.
  • step four is as follows:
  • the single-chip microcomputer reads the signal from the car's electronic controller unit, or ECU, and calculates it through the CPU to control the six servo motors at the bottom of the seat platform to coordinate movements according to specified commands to adjust the seat posture, so that the seat drives the occupants backward and forward. Move a certain distance away from the collision side, where,
  • the elongation of the electric cylinder push rod is obtained by establishing the spatial coordinate system of the 12 upper and lower universal joints;
  • a 1 is the coordinate of the first universal joint on the upper base (201);
  • a 2 is the coordinate of the second universal joint on the upper base (201);
  • a 3 is the coordinate of the third universal joint on the upper base (201);
  • a 4 is the coordinate of the fourth universal joint on the upper base (201);
  • a 5 is the coordinate of the fifth universal joint on the upper base (201);
  • a 6 is the coordinate of the sixth universal joint on the upper base (201);
  • B 1 is the coordinate of the first universal joint on the lower base (205);
  • B 2 is the coordinate of the second universal joint on the lower base (205);
  • B 3 is the coordinates of the third universal joint on the lower base (205);
  • B 4 is the coordinate of the fourth universal joint on the lower base (205);
  • B 5 is the coordinate of the fifth universal joint on the lower base (205);
  • B 6 is the coordinate of the sixth universal joint on the lower base (205);
  • r a is the rod length of the electric cylinder on the upper base
  • r b is the rod length of the electric cylinder on the lower base
  • ⁇ a is the angle between the two universal joints on the upper base
  • ⁇ b is the angle between the two universal joints on the lower base.
  • Rotation angle of the seat base (2) X-axis ⁇ , Y-axis ⁇ , Z-axis ⁇ , and coordinate conversion matrix:
  • a device for reducing injuries to occupants caused by collisions with side pillars of a vehicle is provided to implement a method for reducing injuries caused by collisions with occupants caused by side pillars of a vehicle, including a seat body 1 and a seat base.
  • Acceleration sensor, door pressure sensor, automobile electronic controller, single chip microcomputer, and electric cylinder 203; the acceleration sensor and door pressure sensor are connected to the automobile electronic controller; the automobile electronic controller is connected to the single chip microcomputer; the The single-chip microcomputer is connected to the electric cylinder 203; the electric cylinder 203 is connected to the seat base 2; and the seat body 1 is fixed on the seat base 2.
  • the seat body 1 is fixedly connected to the seat base 2 through bolts.
  • the seat base 2 includes an upper base 201 and a lower base 205; the lower base 205 is connected to the seat slide rail; the upper part of the electric cylinder 203 is connected to the upper base through an upper universal joint 204 201 connection; the lower part of the electric cylinder 203 is connected to the lower base 205 through the lower universal joint 202; both the upper and lower ends of the electric cylinder 203 can rotate around the upper universal joint 204 and the lower universal joint 202; the The seat body 1 is fixed on the upper base 201 .
  • the electric cylinder 203 includes a servo motor 2031, a transmission system 2032, a roller screw pair 2033, a push rod 2034 and an electric cylinder block 2035; when a collision occurs, the car electronic controller senses the signal from the acceleration sensor. The collision signal controls the servo motor 2031 to work. The servo motor 2031 drives the transmission system 2032 to work. The ball screw pair 2033 located in the electric cylinder block 2035 transmits the power from the transmission system 2032 to the push rod 2034, thereby pushing the upper base 201 The movement ultimately drives the seat body 1 to move.
  • the structure of the invention is reliable and can be better installed on different car models.
  • the ECU senses the collision signal transmitted by the B-pillar sensor and controls the seat base to drive the seat to tilt away from the collision side, thereby increasing The buffer space for the occupants in the car.
  • increasing the buffer space for the occupants in the car can reduce the external force experienced by the occupants during the collision, and the tilt of the seat can lift the occupant on the collision side and reduce chest injuries; at the same time, the control seat The seat base drives the seat to tilt backward, bringing the occupant's torso closer to the B-pillar.
  • the B-pillar of the car body is strong and deforms less during a collision, so the occupant's torso is squeezed and deformed less.
  • the invention has the characteristics of strong adaptability and wide application range. During a side pillar collision, it can quickly respond to the control signal sent by the ECU and quickly adjust the seat posture, thereby reducing the damage to the occupants caused by the accident.
  • Figure 1 is a flow chart of a method of reducing injuries to occupants in collisions with side pillars of a vehicle according to the present invention
  • Figure 2 is a schematic diagram of the universal joint coordinates on the upper base
  • Figure 3 is a schematic diagram of the coordinates of the universal joint on the lower base
  • Figure 4 is a schematic structural diagram of a device according to the present invention for reducing injuries to occupants caused by collisions with side pillars of a vehicle;
  • Figure 5 is a schematic structural diagram of the seat base in a device for reducing injuries to occupants when a vehicle side pillar collides with the vehicle according to the present invention
  • Figure 6 is a schematic structural diagram of an electric cylinder in a device for reducing injuries to occupants when a side pillar of a vehicle collides with the vehicle according to the present invention.
  • the term “above” or “below” a first feature of a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the first characteristic is “Above”, “above” and “above” the second features include the first feature being directly above or diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • embodiments of the present invention provide a method for reducing injuries to occupants caused by collisions with side pillars of a vehicle, including the following steps:
  • Step 2 The automobile electronic controller unit (ECU) determines whether the collision signal meets the requirements for airbag ignition. threshold;
  • the pressure sensor and acceleration sensor located in the door cavity of the car door will measure the pressure and acceleration values.
  • the ECU senses the pressure and acceleration and determines whether the two collision signals meet the requirements based on the airbag ignition logic algorithm. Airbag ignition threshold. If the ignition requirements are met, the ECU will issue an airbag ignition request.
  • Step 3 If the collision signal meets the airbag ignition threshold, the automotive electronic controller unit, or ECU, controls the operation of the microcontroller at the lower part of the seat platform;
  • the ECU When the collision signal meets the airbag ignition threshold and the ignition signal is sent, the ECU simultaneously sends a control signal to the microcontroller at the bottom of the seat platform, and controls the work of the six electric cylinders through the microcontroller to adjust the seat posture and reduce occupant injuries.
  • the elongation of the electric cylinder push rod is obtained by establishing the spatial coordinate system of the 12 upper and lower universal joints;
  • a 1 is the coordinate of the first universal joint on the upper base (201);
  • a 2 is the coordinate of the second universal joint on the upper base (201);
  • a 3 is the coordinate of the third universal joint on the upper base (201);
  • a 4 is the coordinate of the fourth universal joint on the upper base (201);
  • B 2 is the coordinate of the second universal joint on the lower base (205);
  • B 3 is the coordinates of the third universal joint on the lower base (205);
  • B 4 is the coordinate of the fourth universal joint on the lower base (205);
  • B 5 is the coordinate of the fifth universal joint on the lower base (205);
  • B 6 is the coordinate of the sixth universal joint on the lower base (205);
  • r a is the rod length of the electric cylinder on the upper base
  • r b is the rod length of the electric cylinder on the lower base
  • ⁇ a is the angle between the two universal joints on the upper base
  • ⁇ b is the angle between the two universal joints on the lower base.
  • the rotation angle of the seat base (2) X-axis ⁇ , Y-axis ⁇ , Z-axis ⁇ , and the coordinate conversion matrix:
  • the above formula calculates the maximum and minimum distance between the two universal joints, which is the maximum extension of the push rod when it is working.
  • Step 5 After the accident occurs, the movement of the six electric cylinders is controlled by the microcontroller system to return the seat to normal use.
  • an embodiment of the present invention provides a device for reducing injuries to occupants when side pillars of a vehicle collide with each other, and is used to implement a method of reducing injuries to occupants when side pillars of a vehicle collide, including a seat body 1, a seat Base 2, acceleration sensor, door pressure sensor, automotive electronic controller, microcontroller, and electric cylinder 203.
  • the acceleration sensor is installed on the B-pillar of the vehicle body.
  • the door pressure sensor is installed on the door.
  • the acceleration sensor and the door pressure sensor are connected to the automobile electronic controller; the automobile electronic controller is connected to the single-chip microcomputer; the single-chip microcomputer is connected to the electric cylinder 203; the electric cylinder 203 is connected to the seat base 2; The seat body 1 is fixed on the seat base 2 .
  • the seat base 2 includes an upper base 201 and a lower base 205; the lower base 205 is connected to the seat slide rail; the upper part of the electric cylinder 203 is connected to the upper base 201 through an upper universal joint 204; The lower part of the electric cylinder 203 is connected to the lower base 205 through the lower universal joint 202; both the upper and lower ends of the electric cylinder 203 can rotate around the upper universal joint 204 and the lower universal joint 202; the seat body 1 is fixed on the upper base 201.
  • the electric cylinder 203 includes a servo motor 2031, a transmission system 2032, a roller screw pair 2033, a push rod 2034 and an electric cylinder block 2035;
  • the working principle of the present invention is that when a collision occurs, the automobile electronic controller senses the collision signal from the acceleration sensor and controls the servo motor 2031 to work.
  • the servo motor 2031 drives the transmission system 2032 to work.
  • the ball located in the electric cylinder block 2035 The screw pair 2033 transmits the power from the transmission system 2032 to the push rod 2034, thereby promoting the movement of the upper base 201, and ultimately the movement of the seat body 1, thereby reducing injuries to the occupants and improving vehicle safety.
  • any combination of various embodiments of the present invention can also be carried out. As long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)

Abstract

Procédé et appareil pour réduire une blessure d'un passager provoquée par un impact de pôle latéral d'un véhicule complet. Le procédé comprend les étapes suivantes consistant à : I. lorsqu'un accident se produit, détecter, par un capteur d'accélération de montant central et un capteur de pression de portière de véhicule sur un côté d'impact de carrosserie de véhicule, un signal d'impact, et transmettre le signal d'impact à une unité de commande électronique de véhicule, c.-à-d., une ECU ; II. déterminer, par l'ECU, si le signal d'impact satisfait à une valeur de seuil de déploiement d'airbag ; III. si le signal d'impact satisfait à la valeur de seuil de déploiement d'airbag, commander, par l'ECU, un micro-ordinateur monopuce au niveau d'une partie inférieure d'une plateforme de siège pour qu'il fonctionne ; et IV. lire, par le micro-ordinateur monopuce, le signal transmis à partir de l'ECU, et commander six servomoteurs (2031) au niveau de la partie inférieure de la plateforme de siège pour qu'ils se déplacent de manière coordonnée, de façon à régler la pose d'un siège, de telle sorte que le siège entraîne un passager à se déplacer vers l'arrière et à l'opposé d'une direction côté impact, et par conséquent une blessure du passager est réduite.
PCT/CN2023/091964 2022-06-21 2023-05-04 Procédé et appareil pour réduire une blessure d'un passager provoquée par un impact de pôle latéral d'un véhicule complet WO2023246318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210707332.8 2022-06-21
CN202210707332.8A CN115031997B (zh) 2022-06-21 2022-06-21 一种降低整车侧面柱碰乘员伤害的方法及装置

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WO2023246318A1 true WO2023246318A1 (fr) 2023-12-28

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WO (1) WO2023246318A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115031997B (zh) * 2022-06-21 2024-06-04 中国第一汽车股份有限公司 一种降低整车侧面柱碰乘员伤害的方法及装置

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Publication number Priority date Publication date Assignee Title
CN203358395U (zh) * 2013-05-22 2013-12-25 吉林大学 一种汽车防侧撞座椅
CN208130520U (zh) * 2018-03-28 2018-11-23 新字多媒体技术开发（上海）有限公司 一种飞行影院
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CN115031997A (zh) 2022-09-09

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