WO2023246318A1 - Method and apparatus for reducing injury to passenger caused by side pole impact of full vehicle - Google Patents

Method and apparatus for reducing injury to passenger caused by side pole impact of full vehicle 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
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WO
WIPO (PCT)
Prior art keywords
seat
universal joint
base
coordinate
ecu
Prior art date
Application number
PCT/CN2023/091964
Other languages
French (fr)
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
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Filing date
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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/en

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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.

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  • 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

A method and apparatus for reducing injury to a passenger caused by a side pole impact of a full vehicle. The method comprises the following steps: I. when an accident occurs, a B-pillar acceleration sensor and a vehicle door pressure sensor on a vehicle body impact side sensing an impact signal, and transmitting the impact signal to a vehicle electronic controller unit, i.e. an ECU; II. the ECU determining whether the impact signal meets an air bag ignition threshold value; III. if the impact signal meets the air bag ignition threshold value, the ECU controlling a single-chip microcomputer at a lower part of a seat platform to work; and IV. the single-chip microcomputer reading the signal transmitted from the ECU, and controlling six servo motors (2031) at the lower part of the seat platform to coordinatively move, so as to adjust the pose of a seat, such that the seat drives a passenger to move backwards and away from an impact side direction, and therefore injury to the passenger is reduced.

Description

一种降低整车侧面柱碰乘员伤害的方法及装置A method and device for reducing injuries to vehicle occupants when side pillars collide with them 技术领域Technical field
本发明属于汽车技术领域，具体的说是一种降低整车侧面柱碰乘员伤害的方法及装置。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.
背景技术Background technique
在各种车辆碰撞事故模式中，侧面柱碰事故占据很大一部分。2015年CIDAS数据显示汽车侧面柱碰事故死亡率高达30.8％，在侧面柱碰工况中，由于柱壁障刚度大、与车辆接触面积小，发生碰撞时对车辆侧面局部侵入量非常大，极易对车内乘员各部位尤其是瞎弄不造成非常严重的伤害。Among various vehicle collision accident modes, side pillar collisions account for a large proportion. CIDAS data in 2015 shows that the fatality rate in car side pillar collision accidents is as high as 30.8%. In side pillar collision conditions, due to the high stiffness of the pillar barrier and the small contact area with the vehicle, the local intrusion into the side of the vehicle during a collision is very large, which is extremely serious. It is easy to cause serious damage to various parts of the vehicle occupants, especially if they are messed with.
在道路交通中，机动车与大树、电线杆灯圆柱形障碍物产生撞击的事故一般可归纳为侧面柱碰事故。侧面柱碰工况中，由于柱壁障刚度较大，且与车辆侧面接触面积较小，乘员与车门间的缓冲空间较小，因此在发生碰撞时壁障对车辆的侵入量较大，极易对车内乘员造成伤害。目前，C-NCAP(2021版)已将32km/h 75°侧面柱碰试验及评价写入法规，这表明了侧面柱碰事故已越来越引起人们的重视。与侧面碰撞试验相比，侧柱碰试验中假人各部位尤其是胸部伤害显著提高，造成严重失分，这说明侧柱碰试验对车体结构及约束系统等方面的要求更为苛刻。 In road traffic, accidents in which motor vehicles collide with large trees, telephone poles, or cylindrical obstacles can generally be classified as side pole collision accidents. In the side pillar collision condition, due to the large stiffness of the pillar barrier and the small contact area with the side of the vehicle, the buffer space between the occupants and the door is small. Therefore, the intrusion of the barrier into the vehicle is large when a collision occurs, which is extremely serious. It is easy to cause harm to the vehicle occupants. At present, C-NCAP (2021 version) has written the 32km/h 75° side pillar impact test and evaluation into regulations, which shows that side pillar impact accidents have attracted more and more attention. Compared with the side impact test, the damage to various parts of the dummy, especially the chest, increased significantly in the side pillar impact test, resulting in a serious loss of points. This shows that the side pillar impact test has more stringent requirements for the car body structure and restraint system.
发明内容Contents of the invention
本发明提供了一种降低整车侧面柱碰乘员伤害的方法及装置，能够安装在不同车型上，适应性强，应用范围广，并且在侧面柱碰撞过程中，能够对ECU发出的控制信号快速响应，迅速调节座椅姿态，从而减少事故对乘员造成的伤害。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.
本发明技术方案结合附图说明如下：The technical solution of the present invention is described as follows with reference to the accompanying drawings:
根据本发明实施例的第一方面，提供一种降低整车侧面柱碰撞乘员伤害的方法，包括以下步骤：According to a first aspect of an embodiment of the present invention, a method for reducing injuries to occupants in collisions with side pillars of a vehicle is provided, including the following steps:
步骤一、发生事故时，车体碰撞侧B柱加速度传感器及车门压力传感器感知碰撞信号，并传递给汽车电子控制器单元即ECU；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;
步骤二、汽车电子控制器单元即ECU判断碰撞信号是否满足气囊点火阈值；Step 2: The automotive electronic controller unit (ECU) determines whether the collision signal meets the airbag ignition threshold;
步骤三、若碰撞信号满足气囊点火阈值，汽车电子控制器单元即ECU控制座椅平台下部的单片机工作；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;
步骤四、单片机读取汽车电子控制器单元即ECU传来的信号，控制座椅平台下部的6个伺服电机协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动，降低乘员伤害。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.
进一步的，还包括：Furthermore, it also includes:
步骤五、事故发生后，通过单片机系统控制6个电动缸的运动，将座椅回复到正常使用状态。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.
进一步的，所述步骤二的具体方法如下：当发生侧面碰撞事故时，位于车门的门腔内的压力传感器及加速度传感器会测量压力及加速度值，ECU通过感知压力及加速度的大小，并根据安全气囊点火逻辑算法，判断 两种碰撞信号是否满足气囊点火阈值，若满足点爆要求，ECU发出气囊点爆需求。Further, the specific method of step two is as follows: 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.
进一步的，所述步骤三的具体方法如下：当碰撞信号满足气囊点火阈值并发出点火信号后，ECU同时向座椅平台下部的单片机发出控制信号，通过单片机控制6个电动缸工作，从而调节座椅姿态，降低乘员伤害。Further, the specific method of step three is as follows: 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.
进一步的，所述步骤四的具体方法如下：Further, the specific method of step four is as follows:
单片机读取汽车电子控制器单元即ECU传来的信号，并通过CPU计算，控制座椅平台下部的6个伺服电机按照指定命令协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动一定距离，其中，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,
为实现座椅沿固定方向运动伸长相应距距离，电动缸推杆伸长量通过建立上下12个万向节所在空间坐标系求得；In order to achieve the corresponding distance when the seat moves in a fixed direction, the elongation of the electric cylinder push rod is obtained by establishing the spatial coordinate system of the 12 upper and lower universal joints;
上下基座各个万向节在坐标系中的坐标分别为：











The coordinates of each universal joint of the upper and lower bases in the coordinate system are:











式中，A1为上基座(201)上的第一万向节的坐标；In the formula, A 1 is the coordinate of the first universal joint on the upper base (201);
A2为上基座(201)上的第二万向节的坐标；A 2 is the coordinate of the second universal joint on the upper base (201);
A3为上基座(201)上的第三万向节的坐标；A 3 is the coordinate of the third universal joint on the upper base (201);
A4为上基座(201)上的第四万向节的坐标；A 4 is the coordinate of the fourth universal joint on the upper base (201);
A5为上基座(201)上的第五万向节的坐标；A 5 is the coordinate of the fifth universal joint on the upper base (201);
A6为上基座(201)上的第六万向节的坐标；A 6 is the coordinate of the sixth universal joint on the upper base (201);
B1为下基座(205)上的第一万向节的坐标；B 1 is the coordinate of the first universal joint on the lower base (205);
B2为下基座(205)上的第二万向节的坐标；B 2 is the coordinate of the second universal joint on the lower base (205);
B3为下基座(205)上的第三万向节的坐标；、B 3 is the coordinates of the third universal joint on the lower base (205);
B4为下基座(205)上的第四万向节的坐标；B 4 is the coordinate of the fourth universal joint on the lower base (205);
B5为下基座(205)上的第五万向节的坐标；B 5 is the coordinate of the fifth universal joint on the lower base (205);
B6为下基座(205)上的第六万向节的坐标；B 6 is the coordinate of the sixth universal joint on the lower base (205);
ra为上基座上电动缸的杆长；r a is the rod length of the electric cylinder on the upper base;
rb为下基座上电动缸的杆长；r b is the rod length of the electric cylinder on the lower base;
θa为上基座上两个万向节间的夹角θ a is the angle between the two universal joints on the upper base
θb为下基座上两个万向节间的夹角。θ b is the angle between the two universal joints on the lower base.
座椅基座(2)的旋转角度：X轴ɑ，Y轴β，Z轴γ，且坐标转换 矩阵：
Rotation angle of the seat base (2): X-axis ɑ, Y-axis β, Z-axis γ, and coordinate conversion matrix:
根据本发明实施例的第二方面，提供一种降低整车侧面柱碰撞乘员伤害的装置，用于实现一种降低整车侧面柱碰撞乘员伤害的方法，包括座椅主体1、座椅基座2、加速度传感器、车门压力传感器感、汽车电子控制器、单片机、和电动缸203；所述加速度传感器和车门压力传感器感与汽车电子控制器连接；所述汽车电子控制器与单片机连接；所述单片机与电动缸203连接；所述电动缸203与座椅基座2连接；所述座椅主体1固定在座椅基座2上。According to a second aspect of the embodiment of the present invention, 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. 2. 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.
进一步的，所述座椅主体1通过螺栓与座椅基座2固定连接。Further, the seat body 1 is fixedly connected to the seat base 2 through bolts.
进一步的，所述座椅基座2包括上基座201和下基座205；所述下基座205与座椅滑轨连接；所述电动缸203上部通过上万向节204与上基座201连接；所述电动缸203下部通过下万向节202与下基座205连接；所述电动缸203的上、下端均能绕着上万向节204和下万向节202转动；所述座椅主体1固定在上基座201上。Further, 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 .
进一步的，所述电动缸203有六个。Further, there are six electric cylinders 203 .
进一步的，所述电动缸203包括伺服电机2031、传动系统2032、滚柱丝杠副2033、推杆2034和电动缸缸体2035；当发生碰撞时，汽车电子控制器感知到加速度传感器传来的碰撞信号，控制伺服电机2031工作，伺服电机2031带动传动系统2032工作，位于电动缸缸体2035内的滚珠丝杠副2033将来自传动系统2032的动力传递给推杆2034，从而推动上基座201的运动，最终带动座椅主体1运动。 Further, 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.
本发明的有益效果为：The beneficial effects of the present invention are:
本发明结构可靠，能够较好地安装在不同车型上，当发生侧面柱碰时，ECU感知B柱传感器传递的碰撞信号后，控制座椅基座带动座椅向远离碰撞侧方向倾斜，增大车内乘员缓冲空间，当碰撞能量一定的情况下，增大车内乘员缓冲空间可降低乘员碰撞时所受的外力，并且座椅的倾斜可以提高碰撞侧乘员，降低胸部伤害；同时，控制座椅基座带动座椅向后倾斜，使乘员躯干更靠近B柱位置，车体B柱强度大，在碰撞过程中变形较小，因此乘员躯干所受挤压变形更小。本发明具有适应性强，应用范围广的特点。在侧面柱碰撞过程中，能够对ECU发出的控制信号快速响应，迅速调节座椅姿态，从而减少事故对乘员造成的伤害。The structure of the invention is reliable and can be better installed on different car models. When a side pillar collision occurs, 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. When the collision energy is certain, 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.
附图说明Description of the drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.
图1为本发明所述一种降低整车侧面柱碰撞乘员伤害的方法的流程图；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;
图2为上基座上的万向节坐标示意图；Figure 2 is a schematic diagram of the universal joint coordinates on the upper base;
图3为下基座上的万向节坐标示意图；Figure 3 is a schematic diagram of the coordinates of the universal joint on the lower base;
图4为本发明所述一种降低整车侧面柱碰撞乘员伤害的装置的结构示意图；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;
图5为本发明所述一种降低整车侧面柱碰撞乘员伤害的装置中的座椅基座的结构示意图； 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;
图6为本发明所述一种降低整车侧面柱碰撞乘员伤害的装置中的电动缸的结构示意图。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.
图中：
1、座椅主体；
2、座椅基座；
201、上基座；
202、下万向节；
203、电动缸；
204、上万向节；
205、下基座；
2031、伺服电机；
2032、传动系统；
2033、滚柱丝杠副；
2034、推杆；
2035、电动缸缸体。In the picture:
1. Seat body;
2. Seat base;
201. Upper base;
202. Lower universal joint;
203. Electric cylinder;
204. Upper universal joint;
205. Lower base;
2031. Servo motor;
2032. Transmission system;
2033. Roller screw pair;
2034, push rod;
2035. Electric cylinder block.
具体实施方式Detailed ways
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部结构。The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for convenience of description, only some but not all structures related to the present invention are shown in the drawings.
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在 第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise expressly provided and limited, 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. Moreover, 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.
在本实施例的描述中，术语“上”、“下”、“左”、“右”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。In the description of this embodiment, the terms "upper", "lower", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified operation. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore is not to be construed as a limitation of the invention. In addition, the terms "first" and "second" are only used for descriptive purposes and have no special meaning.
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.
实施例一Embodiment 1
参阅图1-图3，本发明实施例提供了一种降低整车侧面柱碰撞乘员伤害的方法，包括以下步骤：Referring to Figures 1-3, 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:
步骤一、发生事故时，车体碰撞侧B柱加速度传感器及车门压力传感器感知碰撞信号，以提高对碰撞信号的识别精度，并传递给汽车电子控制器单元即ECU；Step 1. When an accident occurs, the B-pillar acceleration sensor and the door pressure sensor on the collision side of the car body sense the collision signal to improve the recognition accuracy of the collision signal and pass it to the automotive electronic controller unit, or ECU;
步骤二、汽车电子控制器单元即ECU判断碰撞信号是否满足气囊点火 阈值；Step 2. The automobile electronic controller unit (ECU) determines whether the collision signal meets the requirements for airbag ignition. threshold;
当发生侧面碰撞事故时，位于车门的门腔内的压力传感器及加速度传感器会测量压力及加速度值，ECU通过感知压力及加速度的大小，并根据安全气囊点火逻辑算法，判断两种碰撞信号是否满足气囊点火阈值，若满足点爆要求，ECU发出气囊点爆需求。When a side collision occurs, 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.
步骤三、若碰撞信号满足气囊点火阈值，汽车电子控制器单元即ECU控制座椅平台下部的单片机工作；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;
当碰撞信号满足气囊点火阈值并发出点火信号后，ECU同时向座椅平台下部的单片机发出控制信号，通过单片机控制6个电动缸工作，从而调节座椅姿态，降低乘员伤害。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.
步骤四、单片机读取汽车电子控制器单元即ECU传来的信号，控制座椅平台下部的6个伺服电机协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动，降低乘员伤害；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 injuries;
进一步的，单片机读取汽车电子控制器单元即ECU传来的信号，并通过CPU计算，控制座椅平台下部的6个伺服电机按照指定命令协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动一定距离，其中，Further, the microcontroller 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 their movements according to the specified command to adjust the seat posture, so that the seat drives the occupants toward the seat. moves a certain distance backward and away from the collision side, where,
为实现座椅沿固定方向运动伸长相应距距离，电动缸推杆伸长量通过建立上下12个万向节所在空间坐标系求得；In order to achieve the corresponding distance when the seat moves in a fixed direction, the elongation of the electric cylinder push rod is obtained by establishing the spatial coordinate system of the 12 upper and lower universal joints;
上下基座各个万向节在坐标系中的坐标分别为：











The coordinates of each universal joint of the upper and lower bases in the coordinate system are:











式中，A1为上基座(201)上的第一万向节的坐标；In the formula, A 1 is the coordinate of the first universal joint on the upper base (201);
A2为上基座(201)上的第二万向节的坐标；A 2 is the coordinate of the second universal joint on the upper base (201);
A3为上基座(201)上的第三万向节的坐标；A 3 is the coordinate of the third universal joint on the upper base (201);
A4为上基座(201)上的第四万向节的坐标；A 4 is the coordinate of the fourth universal joint on the upper base (201);
A5为上基座(201)上的第五万向节的坐标；A 5 is the coordinate of the fifth universal joint on the upper base (201);
A6为上基座(201)上的第六万向节的坐标；A 6 is the coordinate of the sixth universal joint on the upper base (201);
B1为下基座(205)上的第一万向节的坐标；B 1 is the coordinate of the first universal joint on the lower base (205);
B2为下基座(205)上的第二万向节的坐标； B 2 is the coordinate of the second universal joint on the lower base (205);
B3为下基座(205)上的第三万向节的坐标；、B 3 is the coordinates of the third universal joint on the lower base (205);
B4为下基座(205)上的第四万向节的坐标；B 4 is the coordinate of the fourth universal joint on the lower base (205);
B5为下基座(205)上的第五万向节的坐标；B 5 is the coordinate of the fifth universal joint on the lower base (205);
B6为下基座(205)上的第六万向节的坐标；B 6 is the coordinate of the sixth universal joint on the lower base (205);
ra为上基座上电动缸的杆长；r a is the rod length of the electric cylinder on the upper base;
rb为下基座上电动缸的杆长；r b is the rod length of the electric cylinder on the lower base;
θa为上基座上两个万向节间的夹角θ a is the angle between the two universal joints on the upper base
θb为下基座上两个万向节间的夹角。θ b is the angle between the two universal joints on the lower base.
座椅基座(2)的旋转角度：X轴ɑ，Y轴β，Z轴γ，且坐标转换矩阵：
The rotation angle of the seat base (2): X-axis ɑ, Y-axis β, Z-axis γ, and the coordinate conversion matrix:
综上，上述公式计算出两万向节间最大及最小距离，即得到推杆工作时的最大伸长量。To sum up, 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.
步骤五、事故发生后，通过单片机系统控制6个电动缸的运动，将座椅回复到正常使用状态。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.
实施例二Embodiment 2
参阅图4-图6，本发明实施例提供了一种降低整车侧面柱碰撞乘员伤害的装置，用于实现一种降低整车侧面柱碰撞乘员伤害的方法，包括座椅主体1、座椅基座2、加速度传感器、车门压力传感器感、汽车电子控制器、单片机、和电动缸203。Referring to Figures 4 to 6, 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.
所述加速度传感器设置在车体B柱上。 The acceleration sensor is installed on the B-pillar of the vehicle body.
所述车门压力传感器设置在车门上。The door pressure sensor is installed on the door.
所述加速度传感器和车门压力传感器感与汽车电子控制器连接；所述汽车电子控制器与单片机连接；所述单片机与电动缸203连接；所述电动缸203与座椅基座2连接；所述座椅主体1固定在座椅基座2上。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 .
所述座椅基座2包括上基座201和下基座205；所述下基座205与座椅滑轨连接；所述电动缸203上部通过上万向节204与上基座201连接；所述电动缸203下部通过下万向节202与下基座205连接；所述电动缸203的上、下端均能绕着上万向节204和下万向节202转动；所述座椅主体1固定在上基座201上。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.
所述电动缸203有六个。There are six electric cylinders 203.
所述电动缸203包括伺服电机2031、传动系统2032、滚柱丝杠副2033、推杆2034和电动缸缸体2035；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;
本发明的工作原理为，当发生碰撞时，汽车电子控制器感知到加速度传感器传来的碰撞信号，控制伺服电机2031工作，伺服电机2031带动传动系统2032工作，位于电动缸缸体2035内的滚珠丝杠副2033将来自传动系统2032的动力传递给推杆2034，从而推动上基座201的运动，最终带动座椅主体1运动，实现乘员伤害的降低，提升车辆安全性。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.
以上结合附图详细描述了本发明的优选实施方式，但是，本发明的保护范围并不局限于上述实施方式中的具体细节，在本发明的技术构思范围内，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，这些简单变型均属于本发明的保护范围。The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the protection scope of the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, any person familiar with the technical field Within the technical scope disclosed in the present invention, equivalent substitutions or changes can be made based on the technical solutions and inventive concepts of the present invention, and these simple modifications all belong to the protection scope of the present invention.
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特 征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。In addition, it should be noted that each specific technical feature described in the above specific embodiments Symptoms can be combined in any suitable manner as long as there is no contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。 In addition, 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.

Claims (10)

  1. 一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，包括以下步骤：A method for reducing injuries to occupants in collisions with side pillars of a vehicle, characterized by including the following steps:
    步骤一、发生事故时，车体碰撞侧B柱加速度传感器及车门压力传感器感知碰撞信号，并传递给汽车电子控制器单元即ECU；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;
    步骤二、汽车电子控制器单元即ECU判断碰撞信号是否满足气囊点火阈值；Step 2: The automotive electronic controller unit (ECU) determines whether the collision signal meets the airbag ignition threshold;
    步骤三、若碰撞信号满足气囊点火阈值，汽车电子控制器单元即ECU控制座椅平台下部的单片机工作；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;
    步骤四、单片机读取汽车电子控制器单元即ECU传来的信号，控制座椅平台下部的6个伺服电机协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动，降低乘员伤害。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.
  2. 根据权利要求1所述的一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，还包括：A method for reducing injuries to occupants in collisions with side pillars of a vehicle according to claim 1, further comprising:
    步骤五、事故发生后，通过单片机系统控制6个电动缸的运动，将座椅回复到正常使用状态。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.
  3. 根据权利要求1所述的一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，所述步骤二的具体方法如下：A method for reducing injuries to occupants when a vehicle's side pillars collide according to claim 1, characterized in that the specific method of step two is as follows:
    当发生侧面碰撞事故时，位于车门的门腔内的压力传感器及加速度传感器会测量压力及加速度值，ECU通过感知压力及加速度的大小，并根据安全气囊点火逻辑算法，判断两种碰撞信号是否满足气囊点火阈值，若满足点爆要求，ECU发出气囊点爆需求。When a side collision occurs, 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.
  4. 根据权利要求1所述的一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，所述步骤三的具体方法如下：当碰撞信号满足气囊点火阈值 并发出点火信号后，ECU同时向座椅平台下部的单片机发出控制信号，通过单片机控制6个电动缸工作，从而调节座椅姿态，降低乘员伤害。A method for reducing injuries to occupants in vehicle side pillar collisions according to claim 1, characterized in that the specific method of step three is as follows: when the collision signal meets the airbag ignition threshold After sending the ignition signal, the ECU simultaneously sends a control signal to the microcontroller at the lower part 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.
  5. 根据权利要求1所述的一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，所述步骤四的具体方法如下：A method for reducing injuries to occupants in collisions with side pillars of a vehicle according to claim 1, characterized in that the specific method of step four is as follows:
    单片机读取汽车电子控制器单元即ECU传来的信号，并通过CPU计算，控制座椅平台下部的6个伺服电机按照指定命令协调运动以调节座椅姿态，使座椅带动乘员向后和向远离碰撞侧方向运动一定距离，其中，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,
    为实现座椅沿固定方向运动伸长相应距距离，电动缸推杆伸长量通过建立上下12个万向节所在空间坐标系求得；In order to achieve the corresponding distance when the seat moves in a fixed direction, the elongation of the electric cylinder push rod is obtained by establishing the spatial coordinate system of the 12 upper and lower universal joints;
    上下基座各个万向节在坐标系中的坐标分别为：











    The coordinates of each universal joint of the upper and lower bases in the coordinate system are:











    式中，A1为上基座(201)上的第一万向节的坐标；In the formula, A 1 is the coordinate of the first universal joint on the upper base (201);
    A2为上基座(201)上的第二万向节的坐标；A 2 is the coordinate of the second universal joint on the upper base (201);
    A3为上基座(201)上的第三万向节的坐标；A 3 is the coordinate of the third universal joint on the upper base (201);
    A4为上基座(201)上的第四万向节的坐标；A 4 is the coordinate of the fourth universal joint on the upper base (201);
    A5为上基座(201)上的第五万向节的坐标；A 5 is the coordinate of the fifth universal joint on the upper base (201);
    A6为上基座(201)上的第六万向节的坐标；A 6 is the coordinate of the sixth universal joint on the upper base (201);
    B1为下基座(205)上的第一万向节的坐标；B 1 is the coordinate of the first universal joint on the lower base (205);
    B2为下基座(205)上的第二万向节的坐标；B 2 is the coordinate of the second universal joint on the lower base (205);
    B3为下基座(205)上的第三万向节的坐标；B 3 is the coordinate of the third universal joint on the lower base (205);
    B4为下基座(205)上的第四万向节的坐标；B 4 is the coordinate of the fourth universal joint on the lower base (205);
    B5为下基座(205)上的第五万向节的坐标；B 5 is the coordinate of the fifth universal joint on the lower base (205);
    B6为下基座(205)上的第六万向节的坐标；B 6 is the coordinate of the sixth universal joint on the lower base (205);
    ra为上基座上电动缸的杆长；r a is the rod length of the electric cylinder on the upper base;
    rb为下基座上电动缸的杆长；r b is the rod length of the electric cylinder on the lower base;
    θa为上基座上两个万向节间的夹角θ a is the angle between the two universal joints on the upper base
    θb为下基座上两个万向节间的夹角。θ b is the angle between the two universal joints on the lower base.
    座椅基座(2)的旋转角度：X轴ɑ，Y轴β，Z轴γ，且坐标转换矩阵：
    The rotation angle of the seat base (2): X-axis ɑ, Y-axis β, Z-axis γ, and the coordinate conversion matrix:
  6. 一种降低整车侧面柱碰撞乘员伤害的装置，用于实现一种降低整车侧面柱碰撞乘员伤害的方法，其特征在于，包括座椅主体(1)、座椅基座(2)、加速度传感器、车门压力传感器感、汽车电子控制器、单片机、和电动缸(203)；所述加速度传感器和车门压力传感器感与汽车电子控制器连接；所述汽车电子控制器与单片机连接；所述单片机与电动缸(203)连接；所述电动缸(203)与座椅基座(2)连接；所述座椅主体(1)固定在座椅基座(2)上。A device for reducing injuries to occupants when a vehicle's side pillars collide. It is used to implement a method for reducing injuries to occupants when a vehicle's side pillars collide. It is characterized in that it includes a seat body (1), a seat base (2), an 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 single chip microcomputer It is connected with the electric cylinder (203); the electric cylinder (203) is connected with the seat base (2); the seat body (1) is fixed on the seat base (2).
  7. 根据权利要求6所述的一种降低整车侧面柱碰撞乘员伤害的装置，所述座椅主体(1)通过螺栓与座椅基座(2)固定连接。A device for reducing injuries to occupants caused by collisions with side pillars of a vehicle according to claim 6, wherein the seat body (1) is fixedly connected to the seat base (2) through bolts.
  8. 根据权利要求6所述的一种降低整车侧面柱碰撞乘员伤害的装置，其特征在于，所述座椅基座(2)包括上基座(201)和下基座(205)；所述下基座(205)与座椅滑轨连接；所述电动缸(203)上部通过上万向节(204)与上基座(201)连接；所述电动缸(203)下部通过下万向节(202)与下基座(205)连接；所述电动缸(203)的上、下端均能绕着上万向节(204)和下万向节(202)转动；所述座椅主体(1)固定在上基座(201)上。The device according to claim 6, wherein the seat base (2) includes an upper base (201) and a lower base (205); The lower base (205) is connected with the seat slide rail; the upper part of the electric cylinder (203) is connected with the upper base (201) through the upper universal joint (204); the lower part of the electric cylinder (203) is connected with the lower universal joint The joint (202) is connected to the lower base (205); 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) Fixed on the upper base (201).
  9. 根据权利要求6所述的一种降低整车侧面柱碰撞乘员伤害的装置，其特征在于，所述电动缸(203)有六个。The device according to claim 6, characterized in that there are six electric cylinders (203).
  10. 根据权利要求6所述的一种降低整车侧面柱碰撞乘员伤害的装置，其特征在于，所述电动缸(203)包括伺服电机(2031)、传动系统(2032)、滚柱丝杠副(2033)、推杆(2034)和电动缸缸体(2035)；当发生碰撞时， 汽车电子控制器感知到加速度传感器传来的碰撞信号，控制伺服电机(2031)工作，伺服电机(2031)带动传动系统(2032)工作，位于电动缸缸体(2035)内的滚珠丝杠副(2033)将来自传动系统(2032)的动力传递给推杆(2034)，从而推动上基座(201)的运动，最终带动座椅主体(1)运动。 The device of claim 6, wherein the electric cylinder (203) includes a servo motor (2031), a transmission system (2032), and a roller screw pair (2032). 2033), push rod (2034) and electric cylinder block (2035); 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 screw pair (located in the electric cylinder block (2035) 2033) transmits the power from the transmission system (2032) to the push rod (2034), thereby promoting the movement of the upper base (201), and finally driving the movement of the seat body (1).
PCT/CN2023/091964 2022-06-21 2023-05-04 Method and apparatus for reducing injury to passenger caused by side pole impact of full vehicle WO2023246318A1 (en)

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