Intelligent air bag device of motor vehicle and control method of intelligent air bag device

Abstract

The invention provides a motor vehicle intelligent airbag device and a control method thereof, and relates to the field of safety airbags, the motor vehicle intelligent airbag device comprises a display screen, a left rim subsystem, a right rim subsystem, a rim airbag subsystem and an I-shaped support block; the left rim subsystem and the right rim subsystem are connected through the rim airbag subsystem, in an initial state, the rim airbag subsystem is filled with gas, and the left rim subsystem, the right rim subsystem and the rim airbag subsystem form an annular steering wheel; the display screen is arranged between the left rim subsystem and the right rim subsystem. The folding of the steering wheel is realized to cope with the challenge on the mounting position and the detonation mode of the safety air bag after the display screen is arranged on the steering wheel; when front collision and side collision happen to the motor vehicle and automatic emergency steering operation is carried out, a driver is effectively protected.

Description

Technical Field

[0001] This invention relates to the field of airbags, and more particularly to intelligent airbag devices for motor vehicles and their control methods. Background Technology

[0002] Traditional steering wheels have the disadvantages of not being able to fold or extend. When the vehicle is parked or in autonomous driving mode, these disadvantages result in low utilization of interior space.

[0003] Currently, many car models integrate displays into the steering wheel and dashboard to allow drivers to access important information such as vehicle status and navigation. However, placing a display on the steering wheel presents new challenges regarding the installation location and deployment method of airbags.

[0004] When a motor vehicle is involved in a head-on collision, the asymmetrical nature of the three-point seat belt causes the driver's upper body to rotate to the left during the forward impact, which is detrimental to the protection of the driver by the seat belt and airbag.

[0005] When a motor vehicle is hit from the left side, the driver veers to the left, at which point the driver collides severely with the left door, resulting in serious injury to the driver.

[0006] To avoid an obstacle ahead, a high-speed vehicle performs an automatic emergency steering maneuver into the left lane. During the steering process, the driver violently lurches to the right, and the restraint system, including the three-point seatbelt, is unable to effectively restrain the driver's rightward lurch. Once the vehicle completes the steering, the steering wheel returns to center, and it travels straight in the target lane, the driver violently lurches to the left, resulting in a severe collision with the left-side door. Furthermore, during or after a vehicle has completed a steering maneuver and returned to center, it is prone to head-on collisions with vehicles already in the target lane. In such situations, drivers in a left- or right-leaning seating position are unlikely to receive effective protection. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a smart airbag device for motor vehicles and its control method, which enables steering wheel folding and addresses the challenges to the installation position and deployment method of airbags after the display screen is placed on the steering wheel; it effectively protects the driver when the motor vehicle is involved in a frontal collision, a side collision, or when automatic emergency steering is performed.

[0008] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0009] A motor vehicle intelligent airbag device includes a display screen, a left wheel flange subsystem, a right wheel flange subsystem, a wheel flange airbag system, and an I-shaped support block. The left and right wheel flange subsystems are connected via the wheel flange airbag system. In the initial state, the wheel flange airbag system is filled with gas, and the left, right, and wheel flange subsystems form a ring-shaped steering wheel. The display screen is positioned between the left and right wheel flange subsystems.

[0010] The left wheel flange subsystem includes a left wheel flange, a left telescopic block, a left box-shaped structure, a first elastic element, a second elastic element, and a first hook-and-loop fastener. The left wheel flange is arc-shaped. One end of the left telescopic block is fixed to the left wheel flange, and the other end extends into the left box-shaped structure. The first and second elastic elements are both located inside the left box-shaped structure. One end of the first elastic element is located inside the upper surface of the left box-shaped structure, and the other end contacts the left telescopic block. One end of the second elastic element is located inside the right surface of the left box-shaped structure, and the other end extends towards the left telescopic block. A first through groove is formed on the lower surface of the left box-shaped structure, and a damping device A is provided on the lower surface of the left telescopic block. Under external force, the first through groove and the damping device A can engage, thereby connecting the left telescopic block to the left box-shaped structure. A first hook-and-loop fastener is provided on the upper surface of the left box-shaped structure, which is used to bond the left box-shaped structure to the display screen. A first connecting block is provided on the outer right side of the left box-shaped structure.

[0011] The right wheel flange subsystem includes a right wheel flange, a right telescopic block, a right box-shaped structure, a third elastic element, a fourth elastic element, and a second hook-and-loop fastener. The right wheel flange is arc-shaped. One end of the right telescopic block is fixed to the right wheel flange, and the other end extends into the right box-shaped structure. The third and fourth elastic elements are both located inside the right box-shaped structure. One end of the third elastic element is located inside the upper surface of the right box-shaped structure, and the other end contacts the right telescopic block. One end of the fourth elastic element is located inside the left surface of the right box-shaped structure, and the other end extends towards the right telescopic block. A second through groove is formed on the lower surface of the right box-shaped structure, and a damping device B is provided on the lower surface of the right telescopic block. Under external force, the second through groove and the damping device B can engage, thereby connecting the right telescopic block to the right box-shaped structure. A second hook-and-loop fastener is provided on the upper surface of the right box-shaped structure to bond the right box-shaped structure to the display screen. A second connecting block is provided on the outer left side of the right box-shaped structure.

[0012] The upper surface of the I-shaped support block is connected to the lower surface of the display screen, and the lower surface of the I-shaped support block is fixed to the steering column. Rotating hinges A and B are provided in the grooves on both sides of the I-shaped support block. Under the action of external force, rotating hinges A and B can form rotating hinges with the first connecting block and the second connecting block.

[0013] In the above scheme, the outer wall of the steering column is fitted inside the steering sleeve, the lower end of the steering sleeve is fixedly connected to the vehicle steering gear, and a lifter is provided inside the vehicle steering gear, which enables the steering column to rise and fall along the inner wall of the steering sleeve.

[0014] In the above scheme, the wheel rim airbag subsystem includes an upper wheel rim airbag, a lower wheel rim airbag, an inflation valve A, a deflation valve A, an inflation pipe A, an inflation pipe B, a deflation pipe A, and a deflation pipe B; the left and right ends of the upper wheel rim airbag are fixedly connected to the upper ends of the left and right wheel rims, respectively; the left and right ends of the lower wheel rim airbag are fixedly connected to the lower ends of the left and right wheel rims, respectively; the inflation valve A is fixedly installed inside the left wheel rim, and the deflation valve A is fixedly installed inside the right wheel rim. Inflation valve A inflates the upper and lower wheel rim airbags through inflation pipes A and B respectively; deflation valve A releases the gas from the upper and lower wheel rim airbags through deflation pipes A and B respectively; initially, the upper and lower wheel rim airbags are inflated, and their cross-sectional shape and area are the same as the left and right wheel rims. The upper and lower wheel rim airbags, along with the left and right wheel rims, together form the rim of the steering wheel.

[0015] The above-mentioned solution also includes a four-point seat belt system, which comprises a shoulder strap, a lap belt, a strip airbag, an anchor point, a retractor, buckle tongue A, buckle tongue B, buckle A, buckle B, an inflation valve B, a deflation valve B, an inflation line C, and a deflation line C. The anchor point is fixedly installed on the floor below the left side of the seat, buckle A is fixedly installed on the right side of the rear end of the seat cushion, buckle B is fixedly installed on the middle of the right side of the backrest, and the retractor is fixedly installed inside the B-pillar. The upper end of the shoulder strap is retracted into the retractor, and the lower end of the shoulder strap passes through the upper end of buckle tongue A, thereby connecting with the right end of the lap belt. The left end of the airbag is fixedly connected to the anchor point; the left end of the strip airbag is fixedly connected to the right end of the shoulder strap, and the right end of the strip airbag is fixedly connected to the left end of the buckle tongue B; when the driver wears the four-point seat belt system, the buckle tongue A and buckle tongue B are inserted into buckle A and buckle B respectively, the inflation valve B and the deflation valve B are fixedly installed in buckle B, the inflation valve B inflates the strip airbag through the inflation line C, and the deflation valve B deflates the gas in the strip airbag through the deflation line C; in the initial state, the strip airbag is in a deflated state, flattened, and in contact with the driver's right chest and right ribs.

[0016] The above solution also includes a seat cushion airbag system, which comprises seat cushion airbag A, seat cushion airbag B, seat cushion airbag C, seat cushion airbag D, inflation valve D, deflation valve D, inflation pipe E, inflation pipe F, inflation pipe G, inflation pipe H, deflation pipe E, deflation pipe F, deflation pipe G, and deflation pipe H. In the initial state, seat cushion airbags A, B, C, and D are inflated and all are trapezoidal in shape. The inflated seat cushion airbags... Airbag A, airbag B, airbag C, airbag D, and inflation valve D and deflation valve D are fixedly installed in the seat cushion; inflation valve D inflates airbag A, airbag B, airbag C, and airbag D through inflation pipe E, inflation pipe F, inflation pipe G, and inflation pipe H respectively; deflation valve D expels the gas in airbag A, airbag B, airbag C, and airbag D through deflation pipe E, deflation pipe F, deflation pipe G, and deflation pipe H respectively.

[0017] The above solution also includes a door airbag system, which includes a door airbag, an inflation valve C, a deflation valve C, an inflation line D, and a deflation pipe D. In the initial state, the door airbag is folded and installed inside the door, and the inflation valve C and deflation valve C are fixedly installed inside the door. The inflation valve C inflates the door airbag through the inflation line D, causing the door airbag to change from a folded state to an inflated state. The deflation valve C releases the gas inside the door airbag through the deflation pipe D.

[0018] In the above scheme, the ECU is used to control the operation of the wheel rim airbag subsystem, seat airbag system, door airbag system and lifter; the ECU is used to control the operation of inflation valve A, inflation valve B, inflation valve C, inflation valve D, deflation valve A, deflation valve B, deflation valve C, deflation valve D and lifter.

[0019] In the above scheme, the first elastic element, the second elastic element, the third elastic element and the fourth elastic element are spring A and spring B, spring C and spring D, spring E and spring F, spring G and spring H, respectively.

[0020] In the above scheme, the damping device A includes damper A, damper B, and damper C. Dampers A, B, and C are quarter-cylinders made of rubber material. Dampers A, B, and C damp the rightward movement of the left telescopic block. The damping device B includes dampers D, E, and F. Dampers D, E, and F are quarter-cylinders made of rubber material. Dampers D, E, and F damp the leftward movement of the right telescopic block.

[0021] A control method for a motor vehicle intelligent airbag device: when the motor vehicle is started, the driver turns on the main switch to activate the motor vehicle intelligent airbag device. The ECU controls the inflation valve B to inflate the strip airbag, causing the strip airbag to change from a deflated state to an inflated state. The driver wears a four-point seat belt system.

[0022] Includes the following modes:

[0023] Frontal Collision Mode: When a frontal collision occurs, the driver is thrown forward by the impact inertia. First, the ECU controls the deflation valve D to release gas from seat airbags C and D, causing the driver's buttocks to sink, thus cushioning the forward impact energy. Simultaneously, seat airbags A and B remain inflated to inhibit further forward movement of the driver's buttocks, preventing the driver from lurching forward. Second, the four-point safety system inhibits the driver's forward movement, while the strip airbag contacts the driver's right chest and right ribs to further restrain the driver. As the driver rotates to the left, the ECU controls the deflation valve B to release gas from the strip airbag, thus using gas damping to cushion the driver's forward momentum. Finally, when the driver's head and chest impact the upper and lower wheel rim airbags respectively, the ECU controls the deflation valve A to release gas from the upper and lower wheel rim airbags, thus preventing the head and chest from impacting hard objects and using gas damping to cushion the driver's forward momentum. Ultimately, the coordinated protection of the seat cushion airbag system, strip airbag, upper wheel rim airbag, and lower wheel rim airbag minimizes or avoids driver injury.

[0024] Left-side collision mode: When a vehicle is subjected to a side collision from the left, under the influence of the collision inertia, the driver is thrown to the left. On one hand, the ECU controls the deflation valve D to release the gas inside the seat cushion airbags B and D, causing the driver's right lower limb and torso to sink, thereby reducing the energy of the driver's leftward movement. At the same time, the seat cushion airbags A and C remain inflated to support the driver's left lower limb and torso, thereby inhibiting the driver's leftward movement. On the other hand, the ECU controls the inflation valve C to inflate the door airbags, causing them to expand from a folded state and burst out of the inner surface of the door to prevent the driver from colliding with the hard door. When the driver impacts the inflated door airbags, the deflation valve C is controlled to release the gas inside the door airbags, thereby cushioning the energy of the driver's leftward movement. Ultimately, the combined protection of the seat cushion airbag system and the door airbag system minimizes or avoids driver injury.

[0025] Obstacle Avoidance Mode:

[0026] To avoid an obstacle ahead, a high-speed vehicle initiates an automatic emergency steering maneuver into the left lane. During the steering process, the airbag-type folding steering wheel system rotates 90 degrees counterclockwise to the left, while the driver simultaneously moves sharply to the right. In this process, on one hand, the ECU controls the deflation valve D to release gas from seat airbags A and C, causing the driver's left lower limb and torso to sink, thus cushioning the energy of the driver's rightward movement. Simultaneously, seat airbags B and D remain inflated to support the driver's right lower limb and torso, thus inhibiting the driver's rightward movement. On the other hand, the strip airbag contacts the driver's right ribcage to further inhibit the driver's rightward movement. The ECU also controls the deflation valve B to release gas from the strip airbag, utilizing gas damping to cushion the energy of the driver's rightward movement. Ultimately, this maximizes the suppression of the driver's rightward movement. To prevent the driver from colliding with objects on the right side, if a head-on collision occurs during a turn, the driver, leaning to the right, will be thrown forward due to the impact's inertial force. Firstly, the ECU controls the deflation valve D to release gas from the seat cushion airbag D, causing the driver's buttocks to sink, thus cushioning the forward momentum. Simultaneously, the seat cushion airbag B remains inflated to inhibit further forward movement of the driver's buttocks, preventing the driver from lurching forward. Secondly, the four-point safety system inhibits the driver's forward movement. Thirdly, when the driver's head impacts the lower wheel rim airbag, the ECU controls the deflation valve A to release gas from the lower wheel rim airbag, preventing the head from hitting a hard object, while also using gas damping to cushion the driver's forward momentum. Ultimately, the combined protection of the seat cushion airbag system, the four-point seatbelt system, and the lower wheel rim airbag minimizes or prevents driver injury.

[0027] When a vehicle completes a steering maneuver without a head-on collision and enters the target lane, the airbag-type folding steering wheel system returns to center. The driver then violently moves to the left. During this process, on one hand, the ECU controls the inflation valve D to inflate seat cushion airbags A and C, changing them from a deflated state to an inflated state to support the driver's left lower limb and torso. Simultaneously, it controls the deflation valve D to expel air from seat cushion airbags B and D, causing the driver's right lower limb and torso to sink, thereby inhibiting the driver's leftward movement. On the other hand, the ECU controls the inflation valve C to inflate the door airbags, changing them from a folded state to an inflated state, and expelling them from the inner surface of the door. The door airbag then contacts the driver, further inhibiting the driver's leftward movement. Ultimately, this maximizes the inhibition of the driver's leftward movement, allowing the driver to maintain a normal seating position as much as possible. If the vehicle enters... In a head-on collision behind the target lane, the driver is thrown forward by the impact inertia. On one hand, the ECU controls the deflation valve D to release gas from the seat cushion airbag C, causing the driver's buttocks to sink, thus cushioning the driver's forward momentum. At the same time, the seat cushion airbag A remains inflated to inhibit the forward movement of the driver's buttocks, thus preventing the driver from falling forward. On the other hand, the four-point safety system inhibits the driver's forward movement. Furthermore, when the driver's head and chest impact the upper and lower wheel rim airbags respectively, the ECU controls the deflation valve A to release gas from the upper and lower wheel rim airbags, thus preventing the head and chest from impacting hard objects. At the same time, gas damping is used to cushion the driver's forward momentum. Ultimately, the synergistic protection of the seat cushion airbag system, the four-point seat belt system, and the upper and lower wheel rim airbags minimizes or avoids driver injury.

[0028] Normal mode to collapsed mode:

[0029] When the airbag-type folding steering wheel system changes from normal mode to folding mode A, firstly, the ECU controls the deflation valve A to release the gas inside the upper and lower airbag rims, changing them from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim. Under the action of this thrust, the left telescopic block overcomes the pressure of springs A and B, while damper C disengages from slot A. The left telescopic block moves to the right along the axis of the left box-shaped structure until its right end contacts the left end of springs C and D. Simultaneously, dampers A, B, and C are embedded in slots A, B, and C respectively, achieving a fixed connection between the left box-shaped structure and the left telescopic block. The driver then applies a leftward thrust to the right rim. Under the action of this thrust, the right telescopic block overcomes the pressure of springs E and F, while damper F disengages from slot A. In slot D, the right telescopic block moves to the left along the axis of the right box-shaped structure until the left end of the right telescopic block contacts the right ends of springs G and H. At the same time, dampers D, E, and F are respectively embedded in through slots D, E, and F to achieve a fixed connection between the right box-shaped structure and the right telescopic block. Next, the driver rotates the left and right wheel rims upward by 90 degrees. Under the action of rotational force, the left telescopic block and the left box-shaped structure rotate upward by 90 degrees around the rotational hinge A, and the right telescopic block and the right box-shaped structure rotate upward by 90 degrees around the rotational hinge B. Under the pressure drive of the upper surfaces of the left and right box-shaped structures, the display screen is folded into a left screen, a middle screen, and a right screen. Finally, the ECU controls the lifter to make the steering column descend along the inner wall of the steering sleeve, thereby allowing the airbag-type foldable steering wheel system to be retracted into the instrument panel.

[0030] When the airbag-type folding steering wheel system changes from normal mode to folding mode B, firstly, the ECU controls the deflation valve A to release the gas in the upper and lower airbag rims, changing them from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim. Under the action of the thrust, the left telescopic block overcomes the pressure of springs A and B, while the damper C disengages from slot A. The left telescopic block moves to the right along the axis of the left box-shaped structure until the right end of the left telescopic block contacts the left end of spring C and spring D28. At the same time, dampers A, B (232), and C are respectively embedded in slots A, B, and C to achieve a fixed connection between the left box-shaped structure and the left telescopic block. The driver applies a leftward thrust to the right rim. Under the action of the thrust, the right telescopic block overcomes the pressure of springs E and F, while the damper F disengages from slot D. The right telescopic block moves to the right along the axis of the left box-shaped structure until the right end of the left telescopic block contacts the left end of spring C and spring D28. At the same time, dampers A, B (232), and C are embedded in slots A, B, and C respectively to achieve a fixed connection between the left box-shaped structure and the left telescopic block. The right box-shaped structure moves axially to the left until the left end of the right telescopic block contacts the right ends of springs G and H. Simultaneously, dampers D, E, and F are embedded in through slots D, E, and F respectively, achieving a fixed connection between the right box-shaped structure and the right telescopic block. Next, the driver separates the hook-and-loop fasteners A and B, and C and D. Then, the driver rotates the left and right wheel rims downwards. Under the force of rotation, the left telescopic block and the left box-shaped structure rotate downwards around hinge A, and the right telescopic block and the right box-shaped structure rotate downwards around hinge B, making the left telescopic block, the left box-shaped structure, the right telescopic block, and the right box-shaped structure perpendicular to the display screen. Finally, the ECU controls the lifter to raise the steering column along the inner wall of the steering sleeve, thus facilitating viewing of entertainment information on the display screen for the driver in a reclining position when the vehicle is in autonomous driving mode.

[0031] Springs C, D, G, and H respectively buffer the leftward movement of the left telescopic block and the rightward movement of the right telescopic block; dampers A, B, and C provide greater damping for the rightward movement of the left telescopic block, while dampers D, E, and F provide greater damping for the leftward movement of the right telescopic block. The purpose is to prevent the left and right telescopic blocks from being accidentally moved to the right or left when the driver turns the airbag-type folding steering wheel system in its normal state.

[0032] Folded mode to normal mode:

[0033] When the airbag-type folding steering wheel system changes from folding mode A to normal mode, firstly, the ECU controls the lifter to raise the steering column along the inner wall of the steering sleeve, thus extending the airbag-type folding steering wheel system from the dashboard; secondly, the driver rotates the left and right wheel rims downwards by 90 degrees. Under the action of rotation, the left telescopic block and the left box-shaped structure rotate downwards by 90 degrees around the rotation hinge A, and the right telescopic block (32) and the right box-shaped structure rotate downwards by 90 degrees around the rotation hinge B. At this time, the left and right wheel rims, left telescopic block, left box-shaped structure, right telescopic block, and right box-shaped structure return to their initial positions. Under the action of adhesive force, the left and right screens rotate downwards, thus the left and right screens and the middle screen re-form a plane; thirdly, the driver applies a leftward pulling force to the left wheel rim. Under the action of the pulling force, the left telescopic block overcomes springs A and B ( At pressure 26, dampers A, B, and C disengage from slots A, B, and C respectively. The left telescopic block moves to the left along the axis of the left box-shaped structure until damper C is embedded in slot A, thus achieving a fixed connection between the left box-shaped structure and the left telescopic block. The driver applies a rightward pulling force to the right wheel rim. Under the action of the pulling force, the right telescopic block overcomes the pressure of springs E and F. At the same time, dampers D, E, and F disengage from slots D, E, and F respectively. The right telescopic block moves to the right along the axis of the right box-shaped structure until damper F is embedded in slot D, thus achieving a fixed connection between the right box-shaped structure and the right telescopic block. Finally, the ECU controls the inflation valve A to inflate the upper and lower airbag wheel rims, changing them from a deflated state to an inflated state. At this time, the upper wheel rim airbag, lower wheel rim airbag, left wheel rim, and right wheel rim together form the wheel rim of the steering wheel.

[0034] When the airbag-type folding steering wheel system changes from folding mode B to normal mode, firstly, the ECU controls the lifter to lower the steering column along the inner wall of the steering sleeve, thus returning the display screen to its initial position. Secondly, the driver rotates the left and right wheel rims upwards by 90 degrees. Under the force of rotation, the left telescopic block and the left box-shaped structure rotate upwards by 90 degrees around hinge A, and the right telescopic block and the right box-shaped structure rotate upwards by 90 degrees around hinge B. At this time, the left and right wheel rims, the left telescopic block, the left box-shaped structure, the right telescopic block, and the right box-shaped structure return to their initial positions, and the hook and loop fasteners A and B, and C and D are re-adhesive. Thirdly, the driver applies a leftward pulling force to the left wheel rim. Under the action of the ECU, the left telescopic block overcomes the pressure of springs A and B and moves to the left along the axis of the left box-shaped structure until the damper C is embedded in the through groove A, so as to achieve a fixed connection between the left box-shaped structure and the left telescopic block; the driver applies a rightward pulling force to the right wheel rim, and under the action of the pulling force, the right telescopic block overcomes the pressure of springs E and F and moves to the right along the axis of the right box-shaped structure until the damper F is embedded in the through groove D, so as to achieve a fixed connection between the right box-shaped structure and the right telescopic block; finally, the ECU controls the inflation valve A to inflate the upper airbag wheel rim and the lower airbag wheel rim, so that they change from a deflated state to an inflated state. At this time, the upper wheel rim airbag, the lower wheel rim airbag, the left wheel rim, and the right wheel rim together constitute the wheel rim of the steering wheel;

[0035] When the left wheel rim, right wheel rim, left telescopic block, left box-shaped structure, right telescopic block, and right box-shaped structure return to their initial positions, the upper surfaces of the left telescopic block, left box-shaped structure, right telescopic block, and right box-shaped structure are parallel to the folded display screen.

[0036] When the vehicle has finished driving, the driver turns off the main switch to deactivate the vehicle's intelligent airbag system. At this time, the airbag-type foldable steering wheel system, four-point seat belt system, seat cushion airbag system, and door airbag system return to their initial state.

[0037] Beneficial effects:

[0038] (1) When a motor vehicle is involved in a frontal collision, the present invention utilizes the synergistic protection of the seat cushion airbag system, strip airbag and upper and lower wheel flange airbags to minimize or avoid driver injury.

[0039] (2) When a motor vehicle is subjected to a side collision from the left, the present invention utilizes the synergistic protection of the seat airbag system and the door airbag system to minimize or avoid driver injury.

[0040] (3) During an emergency turn of the vehicle, the airbag-type foldable steering wheel system rotates 90 degrees counterclockwise to the left, while the driver moves violently to the right. During this process, the present invention utilizes the synergistic protection of the seat cushion airbag system and the strip airbag to minimize the driver's rightward movement and prevent the driver from colliding with objects on the right. If a frontal collision occurs during the emergency turn of the vehicle, the present invention utilizes the synergistic protection of the seat cushion airbag system, the four-point seat belt system, and the lower wheel rim airbag to minimize or avoid driver injury.

[0041] (4) When the vehicle completes the steering operation and no frontal collision occurs, after entering the target lane, the airbag-type foldable steering wheel system returns to center, and the driver moves violently to the left. During this process, the present invention utilizes the synergistic protection of the seat cushion airbag system and the door airbag system to suppress the driver's rightward movement to the maximum extent, so that the driver is in a normal sitting posture as much as possible. If a frontal collision occurs after the vehicle enters the target lane, the present invention utilizes the synergistic protection of the seat cushion airbag system, the four-point seat belt system, and the upper and lower wheel flange airbags to minimize or avoid driver injury to the maximum extent.

[0042] (5) When the airbag foldable steering wheel system changes from normal mode to folding mode A, the present invention can incorporate the airbag foldable steering wheel system into the dashboard.

[0043] (6) When the airbag-type foldable steering wheel system changes from normal mode to folding mode B, the present invention enables the driver in a reclining position to view the entertainment information on the display screen when the motor vehicle is in autonomous driving mode. Attached Figure Description

[0044] Figure 1 This is a front view of the airbag-type foldable steering wheel system when the upper and lower wheel rim airbags are inflated and the left and right wheel rims are not retracted.

[0045] Figure 2 This is a front structural diagram of an airbag-type folding steering wheel system when the upper and lower wheel rim airbags are deflated and the left and right wheel rims are retracted.

[0046] Figure 3 A schematic diagram of the front structure of the left wheel flange, left telescopic block, left box-shaped structure, hook and loop fastener A, right wheel flange, right telescopic block, right box-shaped structure, and hook and loop fastener C;

[0047] Figure 4 This is a schematic diagram of the rear structure of the display screen, I-shaped support block, rotating hinge A, rotating hinge B, steering column, left telescopic block, left box-shaped structure, right telescopic block, and right box-shaped structure.

[0048] Figure 5 A front structural diagram of the I-shaped support block, rotating hinge A, and rotating hinge B;

[0049] Figure 6 This is a schematic diagram of the back structure of the left box-shaped structure, the right box-shaped structure, the first through slot, the second through slot, the first connecting block, and the second connecting block;

[0050] Figure 7 This is a structural diagram of the left telescopic block, damping device A, right telescopic block, and damping device B.

[0051] Figure 8 This is a structural diagram of the display screen, I-shaped support block, left wheel flange, upper wheel flange airbag, lower wheel flange airbag, steering column, steering sleeve, and lifter.

[0052] Figure 9 This is a structural diagram of the display screen, hook and loop fastener B, and hook and loop fastener D.

[0053] Figure 10 This is a schematic diagram of the left box-shaped structure, the right box-shaped structure, hook and loop fastener A, and hook and loop fastener C.

[0054] Figure 11 This is a schematic diagram of the left box-shaped structure, spring A, spring B, spring C, and spring D.

[0055] Figure 12 The diagram shows the structure of the right-hand box-shaped structure, spring E, spring F, spring G, and spring H.

[0056] Figure 13 A schematic diagram of the structure of shoulder straps, waist belt, strip airbag, anchor point, retractor, buckle tongue A, buckle tongue B, buckle A, and buckle B;

[0057] Figure 14 This is a schematic diagram of the structure of seat cushion airbag A, seat cushion airbag B, seat cushion airbag C, and seat cushion airbag D.

[0058] Figure 15 This is a control diagram of the ECU.

[0059] Figure label:

[0060] 1-Display screen; 2-Left wheel flange subsystem; 3-Right wheel flange subsystem; 4-Wheel flange airbag subsystem; 5-I-shaped support block; 6-Rotating hinge A; 7-Rotating hinge B; 8-Steering column; 9-Steering sleeve; 10-Lifter; 11-Master switch; 12-ECU; 21-Left wheel flange; 22-Left telescopic block; 23-Damping device A; 24-Left box structure; 25-Spring A; 26-Spring B; 27-Spring C; 28-Spring D; 29-Hook and loop fastener A; 210-Hook and loop fastener B ; 231-Damper A; 232-Damper B; 233-Damper C; 31-Right wheel flange; 32-Right telescopic block; 33-Damper device B; 34-Right box-shaped structure; 35-Spring E; 36-Spring F; 37-Spring G; 38-Spring H; 39-Hook and loop fastener C; 310-Hook and loop fastener D; 331-Damper D; 332-Damper E; 333-Damper F; 41-Upper wheel flange airbag; 42-Lower wheel flange airbag; 43-Inflation valve A; 44-Deflator valve A; 45-Inflation pipe A ; 46-Inflation tube B; 47-Deflator tube A; 48-Deflator tube B; 51-Shoulder strap; 52-Waist belt; 53-Strip airbag; 54-Anchor point; 55-Retractor; 56-Lock tongue A; 57-Lock tongue B; 58-Lock A; 59-Lock B; 510-Inflation valve B; 511-Deflator valve B; 512-Inflation line C; 513-Deflator tube C; 61-Seat airbag A; 62-Seat airbag B; 63-Seat airbag C; 64-Seat airbag D; 65-Inflation Air valve D; 66-Deflator D; 67-Inflation pipe E; 68-Inflation pipe F; 69-Inflation pipe G; 610-Inflation pipe H; 611-Deflator E; 612-Deflator F; 613-Deflator G; 614-Deflator H; 71-Door airbag; 72-Inflation valve C; 73-Deflator C; 74-Inflation line D; 75-Deflator D; 242-First through groove; 342-Second through groove; 241-First connecting block; 341-Second connecting block. Detailed Implementation

[0061] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0062] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] The intelligent airbag system for motor vehicles includes an airbag-type foldable steering wheel system, a four-point seat belt system, a seat cushion airbag system, a door airbag system, a master switch 11, and an ECU 12;

[0065] The airbag-type folding steering wheel system includes a display screen 1, a left wheel rim subsystem 2, a right wheel rim subsystem 3, a wheel rim airbag subsystem 4, an I-shaped support block 5, a rotating hinge A 6, a rotating hinge B 7, a steering column 8, a steering sleeve 9, and a lifter 10. The display screen 1 is located at the top, with the left wheel rim subsystem 2, right wheel rim subsystem 3, wheel rim airbag system 4, I-shaped support block 5, rotating hinge A 6, rotating hinge B 7, steering column 8, steering sleeve 9, and lifter 10 located below the display screen 1. Initially, the airbag-type folding steering wheel system is in normal mode.

[0066] The left wheel flange subsystem 2 includes a left wheel flange 21, a left telescopic block 22, a damping device A23, a left box-shaped structure 24, a spring A25, a spring B26, a spring C27, a spring D28, a hook and loop fastener A29, and a hook and loop fastener B210.

[0067] The left wheel rim 21 is arc-shaped. The left end of the left telescopic block 22 is fixedly connected to the left wheel rim 21, and a damping device A23 is installed on the lower surface of the left telescopic block 22. The damping device A23 includes dampers A231, B232, and C233, which are quarter-cylinders made of rubber. The horizontal planes of dampers A231, B232, and C233 face the center of the display screen, and are arranged from left to right. Dampers A231, B232, and C233 provide significant damping for the rightward movement of the left telescopic block 21.

[0068] The left box-shaped structure 24 is hollow. The outer side of the upper surface of the left box-shaped structure 24 is bonded to the lower surface of the display screen 1 using hook and loop fasteners A29 and B210. One side of each hook and loop fastener A29 and B210 is fixedly connected to the outer side of the upper surface of the left box-shaped structure 24 and the lower surface of the display screen 1, respectively, while the other sides are bonded to each other. The left telescopic block 22 is fitted into the left box-shaped structure 24. The left telescopic block 22 can move left and right along the axial direction of the left box-shaped structure 24. The upper ends of springs A25 and B26 are fixedly installed on the inner side of the upper surface of the left box-shaped structure 24, and the lower ends of springs A25 and B26 contact the upper surface of the left telescopic block 22, exerting pressure on the left telescopic block 22. The right ends of springs C27 and D28 are fixed to the inner side of the right surface of the left box-shaped structure 24. The lower surface of the left box-shaped structure 24 has three through slots from left to right, namely through slot A, through slot B, and through slot C.

[0069] The right wheel flange subsystem includes a right wheel flange 31, a right telescopic block 32, a damping device B33, a right box-shaped structure 34, a spring E35, a spring F36, a spring G37, a spring H38, a hook and loop fastener C39, and a hook and loop fastener D310.

[0070] The right rim 31 is arc-shaped. The left end of the right telescopic block 32 is fixedly connected to the left rim 31, and a damping device B33 is installed on the lower surface of the right telescopic block 34. The damping device B33 includes dampers D331, E332, and F333, which are quarter-cylinders made of rubber. The horizontal planes of dampers D331, E332, and F333 face the center of the display screen, and are arranged from right to left. Dampers D331, E332, and F333 provide significant damping for the leftward movement of the right telescopic block 32.

[0071] The right box-shaped structure 34 is hollow. The outer surface of the upper surface of the right box-shaped structure 34 is bonded to the lower surface of the display screen 1 using hook and loop fasteners C39 and D310. One side of each hook and loop fastener C39 and D310 is fixedly connected to the outer surface of the upper surface of the right box-shaped structure 34 and the lower surface of the display screen 1, respectively, while the other sides are bonded to each other. The right telescopic block 32 is fitted into the right box-shaped structure 34. The right telescopic block 32 can move left and right along the axial direction of the right box-shaped structure 34. The upper ends of springs E35 and F36 are fixedly installed on the inner side of the upper surface of the right box-shaped structure 34, and the lower ends of springs E35 and F36 contact the upper surface of the right telescopic block 32, exerting pressure on the right telescopic block 32. The left ends of springs G37 and H38 are fixed to the inner side of the left surface of the right box-shaped structure 34. The lower surface of the right box-shaped structure 34 has three through slots from right to left: through slot D, through slot E, and through slot F.

[0072] The rim airbag subsystem includes an upper rim airbag 41, a lower rim airbag 42, an inflation valve A43, a deflation valve A44, an inflation pipe A45, an inflation pipe B46, a deflation pipe A47, and a deflation pipe B48. The left and right ends of the upper rim airbag 41 are fixedly connected to the upper ends of the left rim 21 and the right rim 31, respectively; the left and right ends of the lower rim airbag 42 are fixedly connected to the lower ends of the left rim 21 and the right rim 31, respectively. The inflation valve A43, inflation pipe A45, and inflation pipe B46 are fixedly installed inside the left rim 21, and the deflation valve A44, deflation pipe A47, and deflation pipe B48 are fixedly installed inside the right rim 31. The inflation valve A43 inflates the upper rim airbag 41 and the lower rim airbag 42 through the inflation pipes A45 and B46, respectively. The bleed valve A44 releases gas from the upper wheel rim airbag 41 and the lower wheel rim airbag 42 through bleed pipes A47 and B48 respectively. In the initial state, the upper wheel rim airbag 41 and the lower wheel rim airbag 42 are inflated, and the cross-sectional shape and area of ​​the upper wheel rim airbag 41 and the lower wheel rim airbag 42 are the same as those of the left wheel rim 21 and the right wheel rim 31. At this time, the upper wheel rim airbag 41, the lower wheel rim airbag 42, the left wheel rim 21, and the right wheel rim 31 together form the rim of the steering wheel.

[0073] The upper surface of the I-shaped support block 5 is fixedly connected to the lower surface of the display screen 1, and the lower surface of the I-shaped support block 5 is fixedly connected to the steering column 8. Rotating hinges A6 and B7 are fixedly connected to the inner surfaces of the left and right grooves of the I-shaped support block 5, respectively. Connecting blocks A and B are fixedly installed at the right end of the left box-shaped structure 24, forming a rotating hinge with rotating hinge A6; connecting blocks C and D are fixedly installed at the left end of the right box-shaped structure 34, forming a rotating hinge with rotating hinge B7; thus, the left box-shaped structure 24 and the right box-shaped structure 34 can rotate around the left and right grooves of the I-shaped support block 5, respectively. Initially, the outer surface of the right side of the left box-shaped structure 24 is on the same plane as the outer surface of the left groove of the I-shaped support block 5; the outer surface of the left side of the right box-shaped structure 34 is on the same plane as the outer surface of the right groove of the I-shaped support block 5.

[0074] The steering column 8 is fitted inside the steering sleeve 9, and the lower end of the steering sleeve 9 is fixedly connected to the vehicle steering gear. The lifter 10 is installed in the vehicle steering gear and can realize the lifting and lowering of the steering column 8 along the inner wall of the steering sleeve 9.

[0075] The four-point seatbelt system includes a shoulder strap 51, a lap belt 52, a strip airbag 53, an anchor point 54, a retractor 55, a buckle tongue A56, a buckle tongue B57, a buckle A58, a buckle B59, an inflation valve B510, a deflation valve B511, an inflation line C512, and a deflation line C513. The anchor point 54 is fixedly installed on the floor below the left side of the seat. Buckle A58 is fixedly installed on the right side of the rear end of the seat cushion. Buckle B59 is fixedly installed on the middle right side of the backrest. The retractor 55 is fixedly installed inside the B-pillar. The shoulder strap 51 and lap belt 52 are made of fabric. The upper end of the shoulder strap 51 is retracted into the retractor 55, and the lower end of the shoulder strap 51 passes through the upper end of the buckle tongue A56, thus connecting to the right end of the lap belt 52. The left end of the lap belt 52 is fixedly connected to the anchor point 54. The left end of the strip-shaped airbag 53 is fixedly connected to the right end of the shoulder strap 51, and the right end of the strip-shaped airbag 53 is fixedly connected to the left end of the buckle tongue B57. When the driver wears a four-point seat belt system, the buckle tongues A56 and B57 are inserted into the buckles A58 and B59 respectively. The inflation valve B510 and deflation valve B511 are fixedly installed in the buckle B59, and the inflation line C512 and deflation line C513 are fixedly installed in the buckles B59 and buckle tongue B57. The inflation valve B510 inflates the strip-shaped airbag through the inflation line C512, and the deflation valve B511 deflates the gas in the strip-shaped airbag 53 through the deflation line C513. In the initial state, the strip-shaped airbag 53 is in a deflated state, flattened, and in contact with the driver's right chest and right ribs.

[0076] The seat cushion airbag system includes seat cushion airbag A61, seat cushion airbag B62, seat cushion airbag C63, seat cushion airbag D64, inflation valve D65, deflation valve D66, inflation pipe E67, inflation pipe F68, inflation pipe G69, inflation pipe H610, deflation pipe E611, deflation pipe F612, deflation pipe G613, and deflation pipe H614. In the initial state, seat cushion airbags A61, B62, C63, and D64 are inflated and all are trapezoidal in shape. The seat cushion airbags A61, B62, C63, and D64, which are in an inflated state, along with the inflation valve D65, deflation valve D66, inflation pipe E67, inflation pipe F68, inflation pipe G69, inflation pipe H610, deflation pipe E611, deflation pipe F612, deflation pipe G613, and deflation pipe H614, are fixedly installed in the seat cushion. With the vehicle's direction of travel as a reference, the front and rear surfaces of seat cushion airbags A61, B62, C63, and D64 are parallel to each other and perpendicular to the floor. The vertical planes of seat cushion airbags A61, B62, C63, and D64 are parallel to the floor. Seat cushion airbags A61 and B62 are located in front of seat cushion airbags C63 and D64, respectively. The rear surfaces of seat cushion airbags A61 and B62 are parallel to the floor. The front surfaces of airbags A61 and C63 are in contact with each other, located to the left of airbags B62 and D64 respectively. The right surfaces of airbags A61 and C63 are in contact with the left surfaces of airbags B62 and D64. The area of ​​the rear surface of airbags A61 and B62 is equal to the area of ​​the front surface of airbags C63 and D64, and the area of ​​the right surface of airbags A61 and C63 is equal to the area of ​​the left surface of airbags B62 and D64. Airbags A61, B62, C63, and D64 are combined into a single unit. The inclined surfaces of seat airbags A61, B62, C63, and D64 form a plane that supports the driver's body; the front surfaces of seat airbags A61 and B62 form a plane; the left surfaces of seat airbags A61 and C63 form a plane; the right surfaces of seat airbags B62 and D64 form a plane; and the vertical surfaces of seat airbags A61, B62, C63, and D64 form a plane. Inflation valve D65 inflates seat airbags A61, B62, C63, and D64 through inflation pipes E67, F68, G69, and H610, respectively.The vent valve D66 releases gas from seat cushion airbags A61, B62, C63, and D64 through vent pipes E611, F612, G613, and H614, respectively. Initially, seat cushion airbags A61, B62, C63, and D64 are inflated.

[0077] The door airbag system includes a door airbag 71, an inflation valve C72, a deflation valve C73, an inflation line D74, and a deflation pipe D75. In its initial state, the door airbag 71 is folded and installed inside the door. The inflation valve C72, deflation valve C73, inflation line D74, and deflation pipe D75 are fixedly installed inside the door. The inflation valve C72 inflates the door airbag 71 through the inflation line D74, causing it to expand from its folded state. The deflation valve C73 releases the gas from the door airbag 71 through the deflation pipe D75.

[0078] ECU12 is the core of the entire device and can be integrated into the central processing unit of the vehicle. ECU12 controls the inflation valves A43, B510, C72, D65, A44, B511, C73, D66, and the lifter 10. ECU12 is connected to the inflation valves A43, B510, C72, D65, A44, B511, C73, D66, and the lifter 10.

[0079] Specifically, the left wheel flange subsystem 1 and rotating hinge A6 are symmetrical with the right wheel flange subsystem 2 and rotating hinge B7; springs A25 and E35, B26 and F36, 27 and G37, D28 and H38, hook and loop fasteners A29 and C39, and B210 and D310 are also symmetrical with the left and right.

[0080] To achieve the desired effect of this invention, the following control method is employed:

[0081] After the vehicle is started, the driver turns on the main switch 11 to activate the vehicle's intelligent airbag system. The ECU 12 controls the inflation valve B510 to inflate the strip airbag 53, causing it to inflate from a deflated state. The inflated strip airbag 53 then contacts the driver's right chest and right ribs. The driver then inserts the buckle tongues A56 and B57 into the buckles A58 and B59 respectively to wear the four-point seatbelt system.

[0082] When a vehicle is involved in a head-on collision, the driver is thrown forward due to the impact's inertial force. First, the ECU12 controls the deflation valve D66 to release gas from the seat cushion airbags C63 and D64, causing the driver's buttocks to sink and thus cushioning the forward momentum. Simultaneously, the seat cushion airbags A61 and B62 remain inflated to inhibit further forward movement of the driver's buttocks, preventing the driver from lurching forward. Second, the four-point safety system inhibits the driver's forward movement; furthermore, the strip airbag 53 contacts the driver's right chest and right ribs to inhibit leftward rotation. At the same time, the ECU12 controls the deflation valve B511 to release gas from the strip airbag 53, thus using gas damping to cushion the driver's forward momentum. Finally, when the driver's head and chest impact the upper wheel rim airbag 41 and lower wheel rim airbag 42 respectively, the ECU12 controls the deflation valve A44 to release the gas from the upper wheel rim airbag 41 and lower wheel rim airbag 42. This prevents the head and chest from impacting hard objects and uses gas damping to cushion the driver's forward momentum. Ultimately, the coordinated protection of the seat cushion airbag system, strip airbag 53, upper wheel rim airbag 41, and lower wheel rim airbag 42 minimizes or avoids driver injury.

[0083] When a vehicle is subjected to a side collision from the left, the driver is thrown to the left by the impact's inertial force. On one hand, the ECU12 controls the deflation valve D66 to release gas from seat airbags B62 and D64, causing the driver's right lower limb and torso to sink, thus reducing the energy of the driver's leftward movement. Simultaneously, seat airbags A61 and C63 remain inflated to support the driver's left lower limb and torso, further inhibiting leftward movement. On the other hand, the ECU12 controls the inflation valve C72 to inflate the door airbag 71, causing it to expand from a folded state and protrude from the inner surface of the door, preventing the driver from colliding with the solid door. When the driver impacts the inflated door airbag 71, the deflation valve C73 releases gas from it, further cushioning the driver's leftward movement. Ultimately, the combined protection of the seat airbag and door airbag systems minimizes or prevents driver injury.

[0084] To avoid an obstacle ahead, a high-speed vehicle performs an automatic emergency steering maneuver into the left lane.

[0085] During a vehicle turn, the airbag-type folding steering wheel system rotates 90 degrees counterclockwise to the left, while the driver simultaneously moves violently to the right. During this process, on one hand, the ECU12 controls the deflation valve D66 to release gas from seat cushion airbags A61 and C63, causing the driver's left lower limb and torso to sink, thus cushioning the energy of the driver's rightward movement. Simultaneously, seat cushion airbags B62 and D64 remain inflated to support the driver's right lower limb and torso, thus inhibiting the driver's rightward movement. On the other hand, the strip airbag 53 contacts the driver's right ribcage to further inhibit the driver's rightward movement. At the same time, the ECU12 controls the deflation valve B511 to release gas from the strip airbag 53, thereby using gas damping to cushion the energy of the driver's rightward movement. Ultimately, this maximizes the suppression of the driver's rightward movement, preventing a collision with objects on the right side. If a head-on collision occurs during a vehicle's turn, the driver, leaning to the right, will be thrown forward due to the impact's inertial force. Firstly, the ECU12 controls the deflation valve D66 to release gas from the seat cushion airbag D64, causing the driver's buttocks to sink and cushion the forward momentum. Simultaneously, the seat cushion airbag B62 remains inflated to inhibit further forward movement of the driver's buttocks, preventing the driver from lurching forward. Secondly, the four-point safety system inhibits the driver's forward movement. Thirdly, when the driver's head impacts the lower wheel rim airbag 42, the ECU12 controls the deflation valve A44 to release gas from the lower wheel rim airbag 42, preventing the head from hitting a hard object and using gas damping to cushion the driver's forward momentum. Ultimately, the combined protection of the seat cushion airbag system, the four-point seatbelt system, and the lower wheel rim airbag 42 minimizes or prevents driver injury.

[0086] When the vehicle completes the steering maneuver without a head-on collision and enters the target lane, the airbag-type folding steering wheel system returns to center, causing the driver to move sharply to the left. During this process, on one hand, ECU12 controls the inflation valve D65 to inflate the seat cushion airbags A61 and C63, changing them from a deflated state to an inflated state to support the driver's left lower limb and torso. Simultaneously, it controls the deflation valve D66 to expel the gas from the seat cushion airbags B62 and D64, causing the driver's right lower limb and torso to sink, thereby inhibiting the driver's leftward movement. On the other hand, ECU12 controls the inflation valve C72 to inflate the door airbag 71, changing it from a folded state to an inflated state and pushing it out of the inner surface of the door. The door airbag 71 then contacts the driver, further inhibiting the driver's leftward movement. Ultimately, this maximally inhibits the driver's rightward movement, keeping the driver in a normal seating position as much as possible. If a vehicle enters the target lane and a head-on collision occurs, the driver will be thrown forward due to the impact's inertial force. Firstly, the ECU12 controls the deflation valve D66 to release gas from the seat cushion airbag C63, causing the driver's buttocks to sink, thus cushioning the driver's forward momentum. Simultaneously, the seat cushion airbag A61 remains inflated to inhibit further forward movement of the driver's buttocks, preventing the driver from lurching forward. Secondly, the four-point safety system inhibits the driver's forward movement. Thirdly, when the driver's head and chest impact the upper wheel rim airbag 41 and lower wheel rim airbag 42 respectively, the ECU12 controls the deflation valve A44 to release gas from these airbags, preventing the head and chest from impacting hard objects. Gas damping further cushions the driver's forward momentum. Ultimately, the coordinated protection of the seat cushion airbag system, the four-point seatbelt system, and the upper and lower wheel rim airbags minimizes or prevents driver injury.

[0087] When the airbag-type folding steering wheel system changes from normal mode to folding mode A, firstly, ECU12 controls the deflation valve A44 to release the gas in the upper airbag rim 41 and lower airbag rim 42, causing them to change from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim 21. Under the action of the thrust, the left telescopic block 22 overcomes the pressure of springs A25 and B26, while the damper C233 disengages from the through groove A. The left telescopic block 22 moves to the right along the axis of the left box-shaped structure 24 until the right end of the left telescopic block 22 contacts the left end of springs C27 and D28. At the same time, dampers A231, B232, and C233 are respectively embedded in through grooves A, B, and C to achieve a fixed connection between the left box-shaped structure 24 and the left telescopic block 22. Then, the driver applies a leftward thrust to the right wheel flange 31. Under the action of the thrust, the right telescopic block 32 overcomes the pressure of springs E35 and F36 on it. At the same time, the damper F333 disengages from the through groove D. The right telescopic block 32 moves to the left along the axis of the right box-shaped structure 34 until the left end of the right telescopic block 32 contacts the right end of springs G37 and H38. At the same time, the dampers D331, E332, and F333 are respectively embedded in the through grooves D, E, and F to achieve a fixed connection between the right box-shaped structure 34 and the right telescopic block 32. Next, the driver rotates the left wheel rim 21 and right wheel rim 31 upwards by 90 degrees. Under the action of rotation, the left telescopic block 22 and the left box-shaped structure 24 rotate upwards by 90 degrees around the rotation hinge A6, and the right telescopic block 32 and the right box-shaped structure 34 rotate upwards by 90 degrees around the rotation hinge B7. Driven by the pressure on the upper surfaces of the left box-shaped structure 24 and the right box-shaped structure 34, the display screen 1 is folded into a left side screen, a middle screen, and a right side screen. Finally, the ECU 12 controls the lifter 10 to lower the steering column 8 along the inner wall of the steering sleeve 9, thereby retracting the airbag-type foldable steering wheel system into the instrument panel.

[0088] When the airbag-type folding steering wheel system changes from normal mode to folding mode B, firstly, ECU12 controls the deflation valve A44 to release the gas in the upper airbag rim 41 and lower airbag rim 42, changing them from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim 21. Under the action of the thrust, the left telescopic block 22 overcomes the pressure of springs A25 and B26, while the damper C233 disengages from the through groove A. The left telescopic block 22 moves to the right along the axis of the left box-shaped structure 24 until the right end of the left telescopic block 22 contacts the left end of springs C27 and D28. At the same time, dampers A231, B232, and C233 are respectively embedded in through grooves A, B, and C to achieve a fixed connection between the left box-shaped structure 24 and the left telescopic block 22. Next, the driver applies a leftward thrust to the right wheel flange 31. Under the action of the thrust, the right telescopic block 32 overcomes the pressure of springs E35 and F36, while the damper F333 disengages from the through groove D. The right telescopic block 32 moves to the left along the axial direction of the right box-shaped structure 34 until the left end of the right telescopic block 32 contacts the right ends of springs G37 and H38. At the same time, dampers D331, E332, and F333 are respectively embedded in through grooves D, E, and F to achieve a fixed connection between the right box-shaped structure 34 and the right telescopic block 32. Then, the driver separates the hook and loop fasteners A29 and B210, and C39 and D310. Then, the driver rotates the left wheel rim 21 and right wheel rim 31 downwards. Under the action of rotation, the left telescopic block 22 and the left box-shaped structure 24 rotate downwards around the rotation hinge A6, and the right telescopic block 32 and the right box-shaped structure 34 rotate downwards around the rotation hinge B7, so that the left telescopic block 22, the left box-shaped structure 24, the right telescopic block 32, and the right box-shaped structure 34 are perpendicular to the display screen 1. Finally, the ECU 12 controls the lifter 10 to make the steering column 8 rise along the inner wall of the steering sleeve 9, so that when the vehicle is in automatic driving mode, it is convenient for the driver, who is in a reclining sitting position, to view the entertainment information on the display screen.

[0089] When the airbag-type folding steering wheel system changes from folding mode A to normal mode, firstly, ECU12 controls the lifter 10 to raise the steering column 8 along the inner wall of the steering sleeve 9, thereby extending the airbag-type folding steering wheel system from the dashboard. Secondly, the driver rotates the left wheel rim 21 and right wheel rim 31 downwards by 90 degrees. Under the action of rotation, the left telescopic block 22 and the left box-shaped structure 24 rotate downwards by 90 degrees around the rotation hinge A6, and the right telescopic block 32 and the right box-shaped structure 34 rotate downwards by 90 degrees around the rotation hinge B7. At this time, the left wheel rim 21, right wheel rim 31, left telescopic block 22, left box-shaped structure 24, right telescopic block 32, and right box-shaped structure 34 return to their initial positions. Under the action of adhesive force, the left and right screens rotate downwards, thereby forming a plane with the middle screen again. Next, the driver applies a leftward pulling force to the left wheel rim 21. Under the action of the pulling force, the left telescopic block 22 overcomes the pressure of springs A25 and B26. At the same time, dampers A231, B232, and C233 disengage from through slots A, B, and C respectively. The left telescopic block 22 moves to the left along the axial direction of the left box-shaped structure 24 until damper C233 is embedded in through slot A, thereby achieving a fixed connection between the left box-shaped structure 24 and the left telescopic block 22. Next, the driver applies a rightward pulling force to the right wheel rim 31. Under the action of the pulling force, the right telescopic block 32 overcomes the pressure of springs E35 and F36. At the same time, dampers D331, E332, and F333 disengage from through slots D, E, and F, respectively. The right telescopic block 32 moves to the right along the axial direction of the right box-shaped structure 34 until damper F333 is embedded in through slot D, thus achieving a fixed connection between the right box-shaped structure 34 and the right telescopic block 32. Finally, the ECU12 controls the inflation valve A43 to inflate the upper airbag rim 41 and the lower airbag rim 42, changing them from a deflated state to an inflated state. At this time, the upper wheel rim airbag 41, the lower wheel rim airbag 42, the left wheel rim 21, and the right wheel rim 31 together form the rim of the steering wheel.

[0090] When the airbag-type folding steering wheel system changes from folding mode B to normal mode, firstly, ECU12 controls the lifter 10 to lower the steering column 8 along the inner wall of the steering sleeve 9, thereby returning the display screen 1 to its initial position. Secondly, the driver rotates the left wheel rim 21 and right wheel rim 31 upwards by 90 degrees. Under the action of rotation, the left telescopic block 22 and the left box-shaped structure 24 rotate upwards by 90 degrees around the rotation hinge A6, and the right telescopic block 32 and the right box-shaped structure 34 rotate upwards by 90 degrees around the rotation hinge B7. At this time, the left wheel rim 21, right wheel rim 31, left telescopic block 22, left box-shaped structure 24, right telescopic block 32, and right box-shaped structure 34 return to their initial positions, and the hook and loop fasteners A29 and B210, and C39 and D310 are re-attached. Next, the driver applies a leftward pulling force to the left wheel rim 21. Under the action of this pulling force, the left telescopic block 22 overcomes the pressure of springs A25 and B26 and moves to the left along the axis of the left box-shaped structure 24 until the damper C233 is embedded in the through groove A, thus achieving a fixed connection between the left box-shaped structure 24 and the left telescopic block 22. The driver then applies a rightward pulling force to the right wheel rim 31. Under the action of this pulling force, the right telescopic block 32 overcomes the pressure of springs E35 and F36 and moves to the right along the axis of the right box-shaped structure 34 until the damper F333 is embedded in the through groove D, thus achieving a fixed connection between the right box-shaped structure 34 and the right telescopic block 32. Finally, the ECU12 controls the inflation valve A43 to inflate the upper airbag rim 41 and the lower airbag rim 42, changing them from a deflated state to an inflated state. At this time, the upper wheel rim airbag 41, the lower wheel rim airbag 42, the left wheel rim 21, and the right wheel rim together constitute the wheel rim of the steering wheel.

[0091] When the vehicle has finished driving, the driver turns off the main switch to deactivate the vehicle's intelligent airbag system. At this time, the airbag-type foldable steering wheel system, four-point seat belt system, seat cushion airbag system, and door airbag system return to their initial state.

[0092] Specifically, springs C27 and D28, and springs G37 and H38 respectively buffer the rightward movement of the left telescopic block 22 and the leftward movement of the right telescopic block 32. Dampers A231, B232, and C233 provide significant damping for the rightward movement of the left telescopic block 22, while dampers D331, E332, and F333 provide significant damping for the leftward movement of the right telescopic block 32. The purpose is to prevent accidental rightward or leftward movement of the left telescopic block 22 and right telescopic block 32 when the driver turns the airbag-type folding steering wheel system in its normal operating state.

[0093] Specifically, when the left wheel rim 21, right wheel rim 31, left telescopic block 22, left box-shaped structure 24, right telescopic block 32, and right box-shaped structure 34 return to their initial positions, the upper surfaces of the left telescopic block 22, left box-shaped structure 24, right telescopic block 32, and right box-shaped structure 34 are parallel to the folded display screen.

[0094] It should be noted that:

[0095] The first through groove 242 is a longitudinal through groove, including through groove A, through groove B and through groove C; the first connecting block 241 includes connecting block A and connecting block B; the second connecting block 341 includes connecting block C and connecting block D.

[0096] The second through groove 342 is a longitudinal through groove, including through groove D, through groove E and through groove F.

[0097] The first elastic element, the second elastic element, and the first hook and loop fastener are all springs. The first elastic element includes spring A25 and spring B26; the second elastic element includes spring C27 and spring D28; and the first hook and loop fastener includes hook and loop fastener A29 and hook and loop fastener B210.

[0098] The third elastic element, the fourth elastic element, and the second hook and loop fastener; wherein the third elastic element and the fourth elastic element are both springs, the third elastic element includes spring E35 and spring F36; the second elastic element includes spring G37 and spring H38; the first hook and loop fastener includes hook and loop fastener C39 and hook and loop fastener D310.

[0099] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0100] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A motor vehicle intelligent airbag device, characterized in that, The system includes a display screen (1), a left wheel flange subsystem (2), a right wheel flange subsystem (3), a wheel flange airbag subsystem (4), and an I-shaped support block (5). The left wheel flange subsystem (2) and the right wheel flange subsystem (3) are connected by the wheel flange airbag subsystem (4). In the initial state, the wheel flange airbag subsystem (4) is filled with gas, and the left wheel flange subsystem (2), the right wheel flange subsystem (3), and the wheel flange airbag subsystem (4) form a ring-shaped steering wheel. The display screen (1) is located between the left wheel flange subsystem (2) and the right wheel flange subsystem (3). The left wheel flange subsystem (2) includes a left wheel flange (21), a left telescopic block (22), a left box-shaped structure (24), a first elastic element, a second elastic element, and a first hook and loop fastener. The left wheel flange (21) is arc-shaped. One end of the left telescopic block (22) is fixed to the left wheel flange (21), and the other end extends into the left box-shaped structure (24). The first elastic element and the second elastic element are both located inside the left box-shaped structure (24). One end of the first elastic element is located inside the upper surface of the left box-shaped structure (24), and the other end is in contact with the left telescopic block (22). One end of the second elastic element is located inside the right surface of the left box-shaped structure (24). The other end extends to the left telescopic block (22). A first through groove (242) is provided on the lower surface of the left box-shaped structure (24). A damping device A (23) is provided on the lower surface of the left telescopic block (22). Under the action of external force, the first through groove (242) and the damping device A (23) can be engaged, thereby connecting the left telescopic block (22) and the left box-shaped structure (24). A first hook and loop fastener is provided on the upper surface of the left box-shaped structure (24). The first hook and loop fastener is used to bond the left box-shaped structure (24) to the display screen (1). A first connecting block (241) is provided on the outer right side of the left box-shaped structure (24). The right wheel flange subsystem (3) includes a right wheel flange (31), a right telescopic block (32), a right box-shaped structure (34), a third elastic element, a fourth elastic element, and a second hook and loop fastener. The right wheel flange (31) is arc-shaped. One end of the right telescopic block (32) is fixed to the right wheel flange (31), and the other end extends into the right box-shaped structure (34). The third elastic element and the fourth elastic element are both located inside the right box-shaped structure (34). One end of the third elastic element is located inside the upper surface of the right box-shaped structure (34), and the other end is in contact with the right telescopic block (32). One end of the fourth elastic element is located inside the left surface of the right box-shaped structure (34). The other end extends to the right telescopic block (32). A second through groove (342) is provided on the lower surface of the right box-shaped structure (34). A damping device B (33) is provided on the lower surface of the right telescopic block (32). Under the action of external force, the second through groove (342) and the damping device B (33) can be engaged, thereby connecting the right telescopic block (32) and the right box-shaped structure (34). A second hook and loop fastener is provided on the upper surface of the right box-shaped structure (34). The second hook and loop fastener is used to bond the right box-shaped structure (34) to the display screen (1). A second connecting block (341) is provided on the left outer side of the right box-shaped structure (34). The upper surface of the I-shaped support block (5) is connected to the lower surface of the display screen (1), and the lower surface of the I-shaped support block (5) is fixed to the steering column (8). Rotating hinges A (6) and B (7) are provided in the grooves on both sides of the I-shaped support block (5). Under the action of external force, the rotating hinges A (6) and B (7) can form a rotating hinge with the first connecting block (241) and the second connecting block (341).

2. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, The outer wall of the rotating column (8) is fitted inside the steering sleeve (9). The lower end of the steering sleeve (9) is fixedly connected to the vehicle steering gear. The vehicle steering gear is provided with a lifter (10), which enables the steering column (8) to rise and fall along the inner wall of the steering sleeve (9).

3. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, The rim airbag subsystem (4) includes an upper rim airbag (41), a lower rim airbag (42), an inflation valve A (43), a deflation valve A (44), an inflation pipe A (45), an inflation pipe B (46), a deflation pipe A (47), and a deflation pipe B (48); the left and right ends of the upper rim airbag (41) are fixedly connected to the upper ends of the left rim (21) and the right rim (31), respectively; the left and right ends of the lower rim airbag (42) are fixedly connected to the lower ends of the left rim (21) and the right rim (31), respectively; the inflation valve A (43) is fixedly installed inside the left rim (21), and the deflation valve A (44) is fixedly installed inside the right rim (31), and the inflation valve A (45) is fixedly installed inside the right rim (31). 43) Inflate the upper wheel flange airbag (41) and lower wheel flange airbag (42) through inflation pipe A (45) and inflation pipe B (46) respectively; deflate the gas in the upper wheel flange airbag (41) and lower wheel flange airbag (42) through deflate pipe A (47) and deflate pipe B (48) respectively; in the initial state, the upper wheel flange airbag (41) and lower wheel flange airbag (42) are in an inflated state, and the cross-sectional shape and area of ​​the upper wheel flange airbag (41) and lower wheel flange airbag (42) are consistent with the left wheel flange (21) and right wheel flange (31). The upper wheel flange airbag (41), lower wheel flange airbag (42), left wheel flange (21) and right wheel flange (31) together constitute the wheel flange of the steering wheel.

4. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, It also includes a four-point seat belt system, which includes a shoulder strap (51), a lap belt (52), a strip airbag (53), an anchor point (54), a retractor (55), a buckle tongue A (56), a buckle tongue B (57), a buckle A (58), a buckle B (59), an inflation valve B (510), a deflation valve B (511), an inflation line C (512), and a deflation line C (513); the anchor point (54) is fixedly installed on the floor below the left side of the seat, the buckle A (58) is fixedly installed on the right side of the rear end of the seat cushion, the buckle B (59) is fixedly installed on the middle of the right side of the backrest, and the retractor (55) is fixedly installed inside the B-pillar; the upper end of the shoulder strap (51) is wound in the retractor (55), and the lower end of the shoulder strap (51) passes through the upper end of the buckle tongue A (56), thereby connecting with the right end of the lap belt (52), the lap belt (53) is fixedly installed in the retractor (55), and the lap belt (54) is fixedly installed in the B-pillar. 2) The left end of the airbag (53) is fixedly connected to the anchor point (54); the left end of the strip airbag (53) is fixedly connected to the right end of the shoulder strap (51), and the right end of the strip airbag (53) is fixedly connected to the left end of the buckle tongue B (57); when the driver wears the four-point seat belt system, the buckle tongue A (56) and buckle tongue B (57) are inserted into buckle A (58) and buckle B (59) respectively, and the inflation valve B (510) and deflation valve B (511) It is fixedly installed in the buckle B (59). The inflation valve B (510) inflates the strip airbag (53) through the inflation pipe C (512). The deflation valve B (511) deflates the gas in the strip airbag (53) through the deflation pipe C (513). In the initial state, the strip airbag (53) is in a deflated state and is flat. The strip airbag (53) is in contact with the driver's right chest and right ribs.

5. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, It also includes a seat cushion airbag system, which includes seat cushion airbag A (61), seat cushion airbag B (62), seat cushion airbag C (63), seat cushion airbag D (64), inflation valve D (65), deflation valve D (66), inflation pipe E (67), inflation pipe F (68), inflation pipe G (69), inflation pipe H (610), deflation pipe E (611), deflation pipe F (612), deflation pipe G (613), and deflation pipe H (614); in the initial state, seat cushion airbag A (61), seat cushion airbag B (62), seat cushion airbag C (63), and seat cushion airbag D (64) are inflated and are all trapezoidal; seat cushion airbag A (61), seat cushion airbag B (62), and seat cushion airbag D (64) in the inflated state are all trapezoidal. The seat cushion airbags C (63), D (64), D (65), D (66), and D (66) are fixedly installed in the seat cushion. The D (65) inflates the seat cushion airbags A (61), B (62), C (63), and D (64) through the inflation pipes E (67), F (68), G (69), and H (610), respectively. The D (66) inflates the seat cushion airbags A (61), B (62), C (63), and D (64) through the deflation pipes E (611), F (612), G (613), and H (614), respectively.

6. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, It also includes a door airbag system, which includes a door airbag (71), an inflation valve C (72), a deflation valve C (73), an inflation line D (74), and a deflation pipe D (75). In the initial state, the door airbag (71) is folded and installed inside the door. The inflation valve C (72) and the deflation valve C (73) are fixedly installed inside the door. The inflation valve C (72) inflates the door airbag (71) through the inflation line D (74), so that the door airbag changes from a folded state to an inflated state. The deflation valve C (73) releases the gas inside the door airbag (71) through the deflation pipe D (75).

7. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, ECU (12) is used to control the operation of the wheel rim airbag subsystem (4), seat airbag system, door airbag system and lifter (10); ECU (12) is used to control the operation of inflation valve A (43), inflation valve B (510), inflation valve C (72), inflation valve D (65), deflation valve A (44), deflation valve B (511), deflation valve C (73), deflation valve D (66) and lifter (10).

8. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, The first elastic element, the second elastic element, the third elastic element and the fourth elastic element are spring A (25) and spring B (26), spring C (27) and spring D (28), spring E (35) and spring F (36), spring G (37) and spring H (38), respectively.

9. The intelligent airbag device for motor vehicles according to claim 1, characterized in that, The damping device A (23) includes damper A (231), damper B (232) and damper C (233). The dampers A (231), B (232) and C (233) are quarter cylinders made of rubber material. The dampers A (231), B (232) and C (233) damp the rightward movement of the left telescopic block (22). The damping device B (33) includes damper D (331), E (332) and F (333). The dampers D (331), E (332) and F (333) are quarter cylinders made of rubber material. The dampers D (331), E (332) and F (333) damp the leftward movement of the right telescopic block (32).

10. A control method for a motor vehicle intelligent airbag device, wherein when the motor vehicle is started, the driver turns on the main switch (11) to activate the motor vehicle intelligent airbag device, the ECU (12) controls the inflation valve B (510) to inflate the strip airbag (53), so that the strip airbag (53) changes from a deflated state to an inflated state, and the driver wears a four-point seat belt system; characterized in that, Includes the following modes: Frontal Collision Mode: When a motor vehicle is involved in a frontal collision, the driver is thrown forward under the influence of the collision inertial force. First, the ECU (12) controls the vent valve D (66) to release the gas in the seat cushion airbags C (63) and D (64), causing the driver's buttocks to sink, thereby buffering the driver's forward momentum. At the same time, the seat cushion airbags A (61) and B (62) remain inflated to suppress the driver's buttocks from moving forward, thus preventing the driver from falling forward. Second, on the one hand, the four-point safety system suppresses the driver's forward movement, and on the other hand, the strip airbag (53) contacts the driver's right chest and right ribs to suppress the driver's leftward rotation. When the ECU (12) controls the deflation valve B (511) to release the gas in the strip airbag (53), the gas damping is used to buffer the driver's forward momentum. Finally, when the driver's head and chest hit the upper wheel rim airbag (41) and lower wheel rim airbag (42) respectively, the ECU (12) controls the deflation valve A (44) to release the gas in the upper wheel rim airbag (41) and lower wheel rim airbag (42), thereby avoiding the head and chest hitting hard objects on the one hand, and buffering the driver's forward momentum by using gas damping on the other hand. Finally, by using the synergistic protection of the seat cushion airbag system, strip airbag (53), upper wheel rim airbag (41) and lower wheel rim airbag (42), the driver's injury is reduced or avoided to the greatest extent. Left-side collision mode: When a motor vehicle is subjected to a side collision from the left, under the action of the collision inertial force, the driver is thrown to the left. On the one hand, the ECU (12) controls the bleed valve D (66) to release the gas in the seat cushion airbag B (62) and seat cushion airbag D (64), causing the driver's right lower limb and torso to sink, thereby reducing the energy of the driver moving to the left; at the same time, the seat cushion airbag A (61) and seat cushion airbag C (63) remain inflated to support the driver's left lower limb and torso, thereby inhibiting the driver from moving to the left. On the other hand, the ECU (12) controls the inflation valve C (72) to inflate the door airbag (71), causing it to change from a folded state to an inflated state and burst out of the inner surface of the door to prevent the driver from colliding with the hard door; when the driver hits the inflated door airbag (71), the deflation valve C (73) is controlled to release the gas in the door airbag (71), thereby buffering the energy of the driver moving to the left; finally, the seat cushion airbag system and the door airbag system work together to minimize or avoid driver injury. Obstacle Avoidance Mode: To avoid an obstacle ahead, a high-speed motor vehicle performs an automatic emergency steering maneuver to the left lane. During the steering process, the airbag-type foldable steering wheel system rotates 90 degrees counterclockwise to the left, while the driver violently moves to the right. During this process, on the one hand, the ECU (12) controls the deflation valve D (66) to release the gas in the seat cushion airbags A (61) and C (63), causing the driver's left lower limb and torso to sink, thereby buffering the energy of the driver's movement to the right. At the same time, the seat cushion airbags B (62) and D (64) remain inflated to support the driver's right lower limb and torso, thereby inhibiting the driver's movement to the right. On the other hand, the strip airbag (53) contacts the driver's right ribs to inhibit the driver's movement to the right. At the same time, the ECU (12) controls the deflation valve B (511) to release the gas in the strip airbag (53), thereby using gas damping to buffer the energy of the driver's movement to the right. Ultimately, the driver's movement is inhibited to the maximum extent. To prevent the driver from colliding with objects on the right, if a frontal collision occurs during the turning of the vehicle, the driver leaning to the right will be thrown forward under the action of the collision inertial force. On the one hand, the ECU (12) controls the bleed valve D (66) to release the gas in the seat cushion airbag D (64), causing the driver's buttocks to sink, thereby buffering the driver's forward momentum. At the same time, the seat cushion airbag B (62) remains inflated to suppress the driver's buttocks from moving forward, thereby preventing the driver from sinking. On the other hand, the four-point safety system suppresses the driver's forward movement. Furthermore, when the driver's head hits the lower wheel rim airbag (42), the ECU (12) controls the bleed valve A (44) to release the gas in the lower wheel rim airbag (42) to prevent the head from hitting a hard object. At the same time, the gas damping is used to buffer the driver's forward momentum. Finally, the combined protection of the seat cushion airbag system, the four-point seat belt system and the lower wheel rim airbag (42) is used to minimize or avoid driver injury. When the vehicle completes the steering operation without a frontal collision and enters the target lane, the airbag-type foldable steering wheel system returns to center. The driver moves violently to the left. During this process, on the one hand, the ECU (12) controls the inflation valve D (65) to inflate the seat cushion airbags A (61) and C (63), changing them from a deflated state to an inflated state to support the driver's left lower limb and torso. At the same time, it controls the deflation valve D (66) to expel the gas in the seat cushion airbags B (62) and D (64), causing the driver's right lower limb and torso to sink, thereby inhibiting the driver's leftward movement. On the other hand, the ECU 12 controls the inflation valve C (72) to inflate the door airbag (71), changing it from a folded state to an inflated state and expelling it from the inner surface of the door. Then, the door airbag (71) contacts the driver, thereby further inhibiting the driver's leftward movement. Finally, the leftward movement of the driver is inhibited to the maximum extent, so that the driver is in a normal sitting position as much as possible. If the vehicle enters the target lane, After a head-on collision, the driver is thrown forward by the impact inertial force. On the one hand, the ECU (12) controls the deflation valve D (66) to release the gas in the seat cushion airbag C (63), causing the driver's buttocks to sink, thereby buffering the driver's forward momentum. At the same time, the seat cushion airbag A (61) remains inflated to suppress the driver's buttocks from moving forward, thus preventing the driver from sinking. On the other hand, the four-point safety system suppresses the driver's forward movement. Furthermore, when the driver's head and chest collide with the upper wheel rim airbag (41) and lower wheel rim airbag (42) respectively, the ECU (12) controls the deflation valve A (44) to release the gas in the upper wheel rim airbag (41) and lower wheel rim airbag (42), thereby preventing the head and chest from colliding with hard objects. At the same time, the gas damping is used to buffer the driver's forward momentum. Finally, the combined protection of the seat cushion airbag system, the four-point seat belt system, the upper wheel rim airbag (41), and the lower wheel rim airbag (42) minimizes or avoids driver injury. Normal mode to collapsed mode: When the airbag-type folding steering wheel system changes from normal mode to folding mode A, firstly, the ECU (12) controls the deflation valve A (44) to release the gas in the upper airbag rim (41) and lower airbag rim (42), causing it to change from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim (21). Under the action of the thrust, the left telescopic block (22) overcomes the pressure of spring A (25) and spring B (26), while the damper C (233) disengages from the through groove A, and the left telescopic block (22) moves along the left box-shaped structure (24). Move axially to the right until the right end of the left telescopic block (22) contacts the left end of spring C (27) and spring D (28), while dampers A (231), B (232), and C (233) are respectively embedded in through slots A, B, and C to achieve a fixed connection between the left box-shaped structure (24) and the left telescopic block (22); the driver applies a leftward thrust to the right wheel flange (31), and under the action of the thrust, the right telescopic block (32) overcomes the pressure of springs E (35) and F (36), while damper F (333) disengages. Through slot D, the right telescopic block (32) moves to the left along the axis of the right box-shaped structure (34) until the left end of the right telescopic block (32) contacts the right end of spring G (37) and spring H (38), and at the same time, dampers D (331), E (332), and F (333) are embedded in through slots D, E, and F respectively to achieve a fixed connection between the right box-shaped structure (34) and the right telescopic block (32); then, the driver rotates the left wheel flange (21) and the right wheel flange (31) upward by 90 degrees. Under the action of the rotation force, the left telescopic block ( 22) The left box-shaped structure (24) rotates 90 degrees upward around the rotating hinge A (6), and the right telescopic block (32) and the right box-shaped structure (34) rotate 90 degrees upward around the rotating hinge B (7). Under the pressure drive of the upper surfaces of the left box-shaped structure (24) and the right box-shaped structure (34), the display screen (1) is folded into a left screen, a middle screen and a right screen. Finally, the ECU (12) controls the lifter (10) to realize that the steering column (8) descends along the inner wall of the steering sleeve (9), thereby allowing the airbag foldable steering wheel system to be retracted into the instrument panel. When the airbag-type folding steering wheel system changes from normal mode to folding mode B, firstly, the ECU (12) controls the deflation valve A (44) to release the gas in the upper airbag rim (41) and lower airbag rim (42), causing it to change from an inflated state to a deflated state. Secondly, the driver applies a rightward thrust to the left rim (21). Under the action of the thrust, the left telescopic block (22) overcomes the pressure of spring A (25) and spring B (26), while the damper C (233) disengages from the through groove A. The left telescopic block (22) moves to the right along the axis of the left box-shaped structure (24) until the left telescopic block... The right end of block (22) contacts the left end of spring C (27) and spring D (28), while dampers A (231), B (232), and C (233) are embedded in through slots A, B, and C respectively to achieve a fixed connection between the left box-shaped structure (24) and the left telescopic block (22); the driver applies a leftward thrust to the right wheel flange (31), and under the action of the thrust, the right telescopic block (32) overcomes the pressure of springs E (35) and F (36), while damper F (333) disengages from through slot D, and the right telescopic block (32) moves along the axis of the right box-shaped structure (34). Move to the left until the left end of the right telescopic block (32) contacts the right end of spring G (37) and spring H (38), while the dampers D (331), E (332), and F (333) are respectively embedded in the through slots D, E, and F to achieve a fixed connection between the right box-shaped structure (34) and the right telescopic block (32); then, the driver separates the hook and loop fasteners A (29) from the hook and loop fasteners B (210) and C (39) from the hook and loop fasteners D (310); then, the driver rotates the left wheel rim (21) and the right wheel rim (31) downwards, and the rotation force Under the action of the left telescopic block (22) and the left box-shaped structure (24) rotate downward around the rotating hinge A (6), and the right telescopic block (32) and the right box-shaped structure (34) rotate downward around the rotating hinge B (7), so that the left telescopic block (22), the left box-shaped structure (24), the right telescopic block (32), and the right box-shaped structure (34) are perpendicular to the display screen (1); finally, the ECU (12) controls the lifter (10) to realize that the steering column (8) rises along the inner wall of the steering sleeve (9), so that when the motor vehicle is in automatic driving, it is convenient for the driver in a reclining position to watch the entertainment information on the display screen; Springs C (27), D (28), G (37), and H (38) respectively buffer the leftward movement of the left telescopic block (22) and the rightward movement of the right telescopic block (32); dampers A (231), B (232), and C (233) provide greater damping for the rightward movement of the left telescopic block (22), and dampers D (331), E (332), and F (333) provide greater damping for the leftward movement of the right telescopic block (32). The purpose is to prevent the left telescopic block (22) and right telescopic block (32) from making erroneous rightward or leftward movements when the driver turns the airbag foldable steering wheel system in its normal state. Folded mode to normal mode: When the airbag-type foldable steering wheel system changes from folding mode A to normal mode, firstly, the ECU (12) controls the lifter (10) to make the steering column (8) rise along the inner wall of the steering sleeve (9), thereby causing the airbag-type foldable steering wheel system to extend out of the instrument panel; secondly, the driver rotates the left wheel rim (21) and right wheel rim (31) downwards by 90 degrees. Under the action of the rotational force, the left telescopic block (22) and the left box-shaped structure (24) rotate downwards around the rotation hinge A (6), and the right telescopic block (32) and the right box-shaped structure (34) rotate downwards around the rotation hinge B (6). 7) Rotate downwards by 90 degrees. At this time, the left wheel rim (21), right wheel rim (31), left telescopic block (22), left box-shaped structure (24), right telescopic block (32), and right box-shaped structure (34) return to their initial positions. Under the action of adhesive force, the left and right screens rotate downwards, so that the left and right screens and the middle screen re-form a plane. Again, the driver applies a leftward pulling force to the left wheel rim (21). Under the action of the pulling force, the left telescopic block (22) overcomes the pressure of spring A (25) and spring B (26), while damping A (231) and damping B (231) also exert force. 32) Damping C (233) disengages from through slots A, B, and C respectively, and the left telescopic block (22) moves to the left along the axis of the left box-shaped structure (24) until damping C (233) is embedded in through slot A, so as to achieve a fixed connection between the left box-shaped structure (24) and the left telescopic block (22); the driver applies a rightward pulling force to the right wheel flange (31). Under the action of the pulling force, the right telescopic block (32) overcomes the pressure of springs E (35) and F (36), and at the same time, damping D (331), damping E (332), and damping F (333) disengage from through slots A, B, and C respectively. Slots D, E, and F are connected to the right. The right telescopic block (32) moves to the right along the axis of the right box-shaped structure (34) until the damping F (333) is embedded in the through slot D, so as to achieve a fixed connection between the right box-shaped structure (34) and the right telescopic block (32). Finally, the ECU (12) controls the inflation valve A (43) to inflate the upper airbag rim (41) and the lower airbag rim (42) so that they change from a deflated state to an expanded state. At this time, the upper rim airbag (41), the lower rim airbag (42), the left rim (21), and the right rim (31) together constitute the rim of the steering wheel. When the airbag-type folding steering wheel system changes from folding mode B to normal mode, firstly, the ECU (12) controls the lifter (10) to lower the steering column (8) along the inner wall of the steering sleeve (9), thereby returning the display screen (1) to its initial position; secondly, the driver rotates the left wheel rim (21) and right wheel rim (31) upwards by 90 degrees. Under the action of the rotational force, the left telescopic block (22) and the left box-shaped structure (24) rotate upwards by 90 degrees around the rotational hinge A (6), and the right telescopic block... Block (32) and the right box-shaped structure (34) rotate 90 degrees upward around the rotating hinge B (7). At this time, the left wheel rim (21), the right wheel rim (31), the left telescopic block (22), the left box-shaped structure (24), the right telescopic block (32), and the right box-shaped structure (34) return to their initial positions. Hook and loop fastener A (29) and hook and loop fastener B (210), hook and loop fastener C (39) and hook and loop fastener D (310) are bonded again. Then, the driver applies a leftward pulling force to the left wheel rim (21). Under the action of the left telescopic block (22), it overcomes the pressure of spring A (25) and spring B (26) and moves to the left along the axis of the left box-shaped structure (24) until the damper C (233) is embedded in the through groove A, so as to achieve a fixed connection between the left box-shaped structure (24) and the left telescopic block (22); the driver applies a rightward pulling force to the right wheel flange (31). Under the action of the pulling force, the right telescopic block (32) overcomes the pressure of spring E (35) and spring F (36) and moves to the left along the axis of the right ... 34) moves to the right along the axis until the damping F (333) is embedded in the through groove D to achieve a fixed connection between the right box structure (34) and the right telescopic block (32); finally, the ECU (12) controls the inflation valve A (43) to inflate the upper airbag rim (41) and the lower airbag rim (42) so that they change from a deflated state to an inflated state. At this time, the upper rim airbag (41), the lower rim airbag (42), the left rim (21), and the right rim (31) together constitute the rim of the steering wheel; When the left wheel rim (21), right wheel rim (31), left telescopic block (22), left box-shaped structure (24), right telescopic block (32), and right box-shaped structure (34) return to their initial positions, the upper surfaces of the left telescopic block (22), left box-shaped structure (24), right telescopic block (32), and right box-shaped structure (34) are parallel to the folded display screen. When the vehicle has finished driving, the driver turns off the main switch to deactivate the vehicle's intelligent airbag system. At this time, the airbag-type foldable steering wheel system, four-point seat belt system, seat cushion airbag system, and door airbag system return to their initial state.

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