Steering system and vehicle

Abstract

The utility model relates to a steering system and a vehicle, the steering system comprises a steering device and a crumple device, the steering device comprises a steering column and a steering pipe sleeve, the steering column is arranged in the steering pipe sleeve in a penetrating mode, one end of the steering column is used for being connected with a steering wheel, and the other end of the steering column is used for being connected with a crumple device. The crumple device comprises a trigger assembly and a transmission assembly, the trigger assembly is connected with the steering column through the transmission assembly, the trigger assembly can be triggered under the action of collision force, and the trigger assembly can drive the transmission assembly to act after being triggered. The steering column is driven to move in the direction from the end, close to the steering wheel, of the steering column to the end, away from the steering wheel, of the steering column. According to the steering system, under the condition that a vehicle is collided, the crumple reliability of the steering column can be improved, and the risk of passengers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a steering system and a vehicle. Background Art

[0002] With the rapid development of my country's automobile industry, there are more and more vehicles on the road, and traffic accidents are also increasing. Therefore, driving safety has received more and more attention and importance from people. When a vehicle has a head-on collision, the body of the vehicle is impacted and decelerates to move forward, and the occupants continue to move forward due to inertia. At the calibrated moment, the seat belt and driver's airbag generator ignite, the bag inflates and expands, and the occupant's hips and chest are first restrained by the seat belt, and then the occupant continues to move forward, the head and chest contact the driver's airbag, the driver's airbag, steering wheel and steering column are impacted, and the steering column begins to collapse.

[0003] However, the collapse of the steering column is very sensitive to the impact angle, and the collision angle cannot be guaranteed in an actual collision. For example, when a collision occurs and the angle of the steering column is large, the steering column and steering wheel should not collapse, thereby increasing the risk of occupant injury. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the utility model provides a steering system, which helps to improve the reliability of steering column collapse in the event of a vehicle collision, thereby helping to reduce the risk to passengers.

[0006] An embodiment of the utility model further provides a vehicle.

[0007] The steering system of an embodiment of the utility model includes: a steering device, the steering device includes a steering column and a steering sleeve, the steering column is inserted into the steering sleeve, and one end of the steering column is used to connect with the steering wheel; a collapse device, the collapse device includes a trigger assembly and a transmission assembly, the trigger assembly is connected to the steering column through the transmission assembly, the trigger assembly can be triggered under the action of a collision force, and the trigger assembly can drive the transmission assembly to move after being triggered, so as to drive the steering column to move in a direction from one end of the steering column adjacent to the steering wheel to one end of the steering column away from the steering wheel.

[0008] According to the steering system of the embodiment of the utility model, after the trigger assembly is triggered under the action of the collision force, the steering column can be driven by the transmission assembly to move from the end of the steering column adjacent to the steering wheel to the end of the steering column away from the steering wheel. Therefore, when the vehicle is hit, the trigger assembly can actively drive the transmission assembly to retract the steering column into the steering sleeve, and then move the steering wheel in the direction away from the occupant, so as to reduce the risk of injury to the occupant due to the collision with the steering wheel. In addition, since the collapse of the steering column is not affected by the collision angle, the reliability of the collapse of the steering column can be improved.

[0009] Therefore, the steering system of the embodiment of the present invention helps to improve the reliability of steering column collapse in the event of a vehicle collision, which helps to reduce the risk to passengers.

[0010] In some embodiments, the transmission assembly includes a cylinder body, a crusher and a rod body, one end of the rod body is connected to the steering column, and the other end of the rod body is passed through the cylinder body. The trigger assembly can drive the rod body to move in a direction from one end of the steering column adjacent to the steering wheel to one end of the steering column away from the steering wheel. The crusher can be compressed and deformed under a preset external force value. The crusher is arranged in the cylinder body, and the crusher is opposite to the crusher on the movement path of the rod body.

[0011] In some embodiments, the transmission assembly also includes a piston, which is disposed in the cylinder body and divides the cavity of the cylinder body into a first chamber and a second chamber, the second chamber being disposed on a side of the first chamber away from the steering wheel along the axial direction of the rod body, the other end of the rod body passing through the first chamber and connected to the piston, the collapse member being disposed in the second chamber, and the cross-sectional area of ​​the piston being larger than the cross-sectional area of ​​the rod body in the axial direction orthogonal to the rod body.

[0012] In some embodiments, the trigger assembly includes a gas generator, which is disposed outside the cylinder body and communicated with the first chamber; or, the gas generator is disposed in the first chamber.

[0013] In some embodiments, the trigger assembly includes a gas generator and a gas storage bottle, the gas storage bottle is arranged outside the cylinder body and communicated with the first chamber, and the gas generator is arranged inside the gas storage bottle.

[0014] In some embodiments, the gas cylinder extends axially along the steering column, the trigger assembly also includes a connecting pipe, the gas cylinder is connected to the first chamber through the connecting pipe along one end of the steering column, and the gas generator is arranged adjacent to the gas cylinder along the other end of the steering column.

[0015] In some embodiments, the steering system also includes a controller and a sensor, the sensor and the gas generator are electrically connected to the controller, the sensor is used to identify the body shape of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the gas generator according to the trigger signal.

[0016] In some embodiments, the transmission assembly also includes a connecting piece, one end of which is connected to one end of the rod body, the side wall of the steering sleeve is provided with a guide groove, the guide groove extends along the axial direction of the steering column, the other end of the connecting piece passes through the guide groove and is connected to the steering column, and the connecting piece slides with the guide groove along the axial direction of the steering column.

[0017] A vehicle according to another embodiment of the present utility model comprises a steering system as described in any one of the embodiments of the present utility model.

[0018] According to the vehicle of the embodiment of the utility model, after the trigger assembly is triggered under the action of the collision force, the steering column can be driven by the transmission assembly to move along the direction from the end of the steering column adjacent to the steering wheel to the end of the steering column away from the steering wheel. Therefore, when the vehicle is hit, the trigger assembly can actively drive the transmission assembly to move, so that the steering column is retracted into the steering sleeve, and then the steering wheel is moved in the direction away from the occupant, so as to reduce the risk of the occupant being injured by the collision with the steering wheel, and because the collapse of the steering column is not affected by the collision angle, the reliability of the collapse of the steering column can be improved. Therefore, in the case of a vehicle collision, the embodiment of the utility model helps to improve the reliability of the collapse of the steering column and is conducive to reducing the risk of the occupant.

[0019] In some embodiments, the vehicle also includes a seat, and the steering system also includes a controller and a sensor, the sensor and the trigger component are electrically connected to the controller, the sensor is arranged on the seat and is used to identify the body shape of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the trigger component according to the trigger signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the steering system (before collapse) of an embodiment of the present utility model.

[0021] Figure 2 It is a schematic diagram of the steering system (after collapse) of an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1. Steering device; 11. Steering column; 12. Steering sleeve;

[0024] 2. Collapse device; 21. Trigger assembly; 211. Gas generator; 212. Gas cylinder; 213. Connecting pipe; 22. Transmission assembly; 221. Cylinder body; 2211. First chamber; 2212. Second chamber; 222. Collapse member; 223. Rod body; 224. Piston; 225. Connecting member. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0026] Please refer to the following Figure 1 and Figure 2 A steering system and a vehicle according to embodiments of the present invention are described.

[0027] like Figure 1 As shown, the steering system according to the embodiment of the utility model comprises: a steering device 1 and a collapsing device 2, wherein the steering device 1 comprises a steering column 11 and a steering sleeve 12, and the collapsing device 2 comprises a trigger assembly 21 and a transmission assembly 22. The steering column 11 is inserted into the steering sleeve 12, and one end of the steering column 11 is used to be connected to a steering wheel (not shown), and the trigger assembly 21 is connected to the steering column 11 through the transmission assembly 22, and the trigger assembly 21 can drive the transmission assembly 22 to move, so as to drive the steering column 11 to move in a direction from one end of the steering column 11 adjacent to the steering wheel to one end of the steering column 11 away from the steering wheel.

[0028] According to the steering system of the embodiment of the utility model, after the trigger assembly 21 is triggered under the action of the collision force, the steering column 11 can be driven by the transmission assembly 22 to move from the end of the steering column 11 adjacent to the steering wheel to the end of the steering column 11 away from the steering wheel. Therefore, when the vehicle is hit, the trigger assembly 21 can actively drive the transmission assembly 22 to operate, so that the steering column 11 is retracted into the steering tube sleeve 12, and then the steering wheel is moved in the direction away from the occupant, so as to reduce the risk of the occupant being injured by the collision with the steering wheel. In addition, since the collapse of the steering column 11 is not affected by the collision angle, the reliability of the collapse of the steering column 11 can be improved.

[0029] Therefore, the steering system of the embodiment of the present utility model helps to improve the reliability of the collapse of the steering column 11 in the event of a vehicle collision, which is beneficial to reducing the risk to the passengers.

[0030] It should be noted that, compared with the solution that the steering column 11 collapses due to the impact of the occupant on the steering wheel (passive collapse), the collapse solution of the steering system of the present application is not affected by the vehicle collision angle and the arrangement angle of the steering column 11, and after the steering system as a whole is subjected to the impact force in the direction of the occupant, the trigger component 21 can still actively trigger the transmission component 22 to move the "steering column 11 + steering wheel" in the direction away from the occupant, thereby improving the reliability of the steering system collapse in the event of a vehicle collision. In other words, the present application makes up for the problem that the steering column 11 does not collapse in a high-speed collision environment, and avoids the occupant from being injured due to the steering column not collapsing.

[0031] The trigger assembly 21 can be triggered under the action of the collision force to drive the transmission assembly 22 to move. It can be understood that the trigger assembly drives the transmission assembly 22 to move (translate) to drive the steering column 11 to move synchronously; it can also be understood that the trigger assembly 21 drives the transmission assembly 22 to rotate to drive the steering column 11 to move synchronously.

[0032] In one example, the transmission assembly 22 can be a gear transmission structure, and the steering column 11 is provided with a rack (not shown) along its length direction, and the gear (not shown) is meshed with the rack. When the trigger assembly 21 is triggered, the gear can be driven to rotate, thereby driving the steering column 11 to move.

[0033] In another example, if Figure 1 and Figure 2 As shown, the transmission assembly 22 includes a cylinder 221, a crushing member 222 and a rod 223, one end of the rod 223 is connected to the steering column 11, and the other end of the rod 223 is arranged in the cylinder 221. The trigger assembly 21 can drive the rod 223 to move along the direction from the end of the steering column 11 adjacent to the steering wheel to the end of the steering column 11 away from the steering wheel. The crushing member 222 can be compressed and deformed under a preset external force value. The crushing member 222 is arranged in the cylinder 221, and the crushing member 222 is opposite to the crushing member 222 on the movement path of the rod 223. It can be understood that the steering system of the present application can take into account the passive collapse function of the steering column 11 by setting the crushing member 222, that is, the collapse of the steering column 11 can be achieved by applying a certain external force without a trigger signal.

[0034] In addition, the trigger assembly 21 can drive the rod body 223 to move in a direction away from the steering wheel to shrink the steering column 11. Since the crushing member 222 is opposite to the crushing member 222 on the movement path of the rod body 223, the energy of the occupant impacting the steering column 11 can be absorbed by the deformation of the crushing member 222, so as to further reduce the probability of injury to the occupant. And since the setting of the crushing member 222 can make the entire collapse process of the steering column 11 last for a certain period of time, this duration will provide better support and energy absorption for the occupant, avoiding the problem of occupant injury caused by excessive collapse.

[0035] For example, the crushing member 222 may be a hollow carbon fiber, a metal mesh structure, or other materials that can be crushed to absorb energy. The present application does not limit the specific structure of the crushing member 222.

[0036] Alternatively, if Figure 1 and Figure 2 As shown, the transmission assembly 22 also includes a piston 224, which is disposed in the cylinder body 221 and separates the first chamber 2211 and the second chamber 2212 of the cylinder body 221. The other end of the rod body 223 is penetrated in the first chamber 2211 and connected to the piston 224. The collapse member 222 is disposed in the second chamber 2212. In the axial direction orthogonal to the rod body 223, the cross-sectional area of ​​the piston 224 is greater than the cross-sectional area of ​​the rod body 223. In other words, the cross-sectional area of ​​the piston 224 in the axial direction orthogonal to the rod body 223 is greater than the cross-sectional area of ​​the rod body 223 in the axial direction orthogonal to the rod body 223. It can be understood that the rod body 223 drives the piston 224 to move, and the piston 224 can push the collapse member 222 to deform. Since the cross-sectional area of ​​the piston 224 is larger than the cross-sectional area of ​​the rod body 223 , the force-bearing area of ​​the piston 224 and the collapse member 222 can be increased, so that the collapse member 222 collapses more fully and has a better energy absorption effect.

[0037] In some embodiments, the trigger assembly 21 includes a gas generator 211, which is disposed outside the cylinder 221 and communicates with the first chamber 2211. It is understood that Figure 2 As shown, the gas generator 211 can output the generated gas into the first chamber 2211 to push the piston 224 to move toward the direction of the collapse member 222, and then the energy of the passenger impacting the steering column 11 can be absorbed by the deformation of the collapse member 222, so as to further reduce the probability of injury to the passenger. In addition, since the gas generator 211 is arranged outside the cylinder body 221, it is convenient to disassemble and maintain the trigger assembly 21.

[0038] It should be noted that the amount of compressed gas released by the gas generator 211 and the stiffness of the collapse member 222 can be adjusted according to the actual collision energy to control the duration of the collapse of the steering column 11. The movement stroke of the rod body 223 in the cylinder body 221 can also be adjusted to control the collapse stroke of the steering column 11, thereby determining various parameters according to the collision energy to achieve the best occupant protection effect.

[0039] In another example, the gas generator 211 is disposed in the first chamber 2211 , thereby reducing the space occupied by the trigger assembly 21 and making the trigger assembly 21 more compact.

[0040] Of course, in other examples, the trigger assembly 21 may also be a motor-driven structure, that is, the motor drives the rod body 223 to contract, so that the steering column 11 is retracted into the steering sleeve 12, and then the steering wheel is moved away from the occupant to reduce the risk of injury to the occupant by colliding with the steering wheel.

[0041] In a specific example, if Figure 1 and Figure 2 As shown, the trigger assembly 21 includes a gas generator 211 and a gas cylinder 212. The gas cylinder 212 is arranged outside the cylinder 221 and communicated with the first chamber 2211. The gas generator 211 is arranged in the gas cylinder 212. When the gas generator 211 receives a trigger signal, the gas generator 211 can release compressed gas into the gas cylinder 212. Since the gas cylinder 212 is arranged outside the cylinder 221 and communicated with the first chamber 2211, compressed gas can be introduced into the first chamber 2211 through the gas cylinder 212 to drive the piston 224 to move toward the direction of the collapse member 222. The steering system of the embodiment of the utility model can reduce the probability of failure of the gas generator 211 due to external collision by arranging the gas generator 211 in the gas cylinder 212, on the one hand, and ensure the stability of the airflow introduced into the first chamber 2211 by the trigger assembly 21, and the use effect is good.

[0042] Alternatively, if Figure 1 and Figure 2As shown, the gas cylinder 212 extends along the axial direction of the steering column 11, and the trigger assembly 21 also includes a connecting pipe 213. The gas cylinder 212 is connected to the first chamber 2211 through the connecting pipe 213 at one end of the steering column 11, and the gas generator 211 is arranged adjacent to the gas cylinder 212 along the other end of the steering column 11. It can be understood that the gas cylinder 212 is in a long strip shape and extends along the axial direction of the steering column 11, which can reduce the space occupied by the entire collapse device 2, so as to facilitate the arrangement of parts around the steering system. In addition, since the gas generator 211 is arranged adjacent to the gas cylinder 212 along the other end of the steering column 11, sufficient space can be reserved for the gas release of the gas generator 211, so that the gas flow from the gas cylinder 212 to the first chamber 2211 is more stable.

[0043] Optionally, the gas cylinder 212 is detachably connected to one of the cylinder body 221 and the steering sleeve 12, and the cylinder body 221 is detachably connected to the steering sleeve 12. For example, the gas cylinder 212 is detachably connected to the cylinder body 221, and the cylinder body 221 is detachably connected to the steering sleeve 12. Since the steering system can be easily disassembled, assembled and maintained, the later maintenance cost is low.

[0044] In some embodiments, the steering system further includes a controller and a sensor, the sensor and the gas generator 211 are electrically connected to the controller, the sensor is used to identify the body shape of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the gas generator 211 according to the trigger signal. It can be understood that the controller can identify the body shape or weight of the occupant to control the advance or delay of the collapse time of the steering column 11 by controlling the trigger time of the gas generator 211.

[0045] For example, when the occupant is of larger size or weight, the trigger assembly 21 can be used to delay the collapse of the steering column 11 (i.e., extend the trigger time of the gas generator 211), so that the steering column 11 can be in brief contact with the occupant to provide certain support to the occupant, thereby absorbing the expansion energy of the occupant hitting the bottom and reducing the injury to the occupant. For another example, when the occupant is of smaller size or weight, the trigger assembly 21 can be used to delay the collapse of the steering column 11 (i.e., shorten the trigger time of the gas generator 211), so that the problem of the steering column 11 being difficult to collapse and absorb energy during a collision can be avoided. Therefore, the steering system of the embodiment of the utility model can meet the use needs of occupants of different body shapes by setting the above-mentioned sensor, and has better safety.

[0046] Alternatively, if Figure 1 and Figure 2As shown, the transmission assembly 22 further includes a connecting member 225, one end of which is connected to one end of the rod body 223, a guide groove (not shown) is provided on the side wall of the steering sleeve 12, the guide groove extends along the axial direction of the steering column 11, the other end of the connecting member 225 passes through the guide groove and is connected to the steering column 11, and the connecting member 225 slides with the guide groove along the axial direction of the steering column 11. Due to the provision of the guide groove, the problem of interference between the connecting member 225 and the steering sleeve 12 when the rod body 223 moves can be avoided, and the guide groove can guide the movement of the cylinder body 221 to improve the stability of the movement of the rod body 223.

[0047] A vehicle according to another embodiment of the present invention includes the steering system of the present invention.

[0048] According to the vehicle of the embodiment of the utility model, since the trigger assembly 21 can drive the steering column 11 to move from one end of the steering column 11 adjacent to the steering wheel to the end of the steering column 11 away from the steering wheel through the transmission assembly 22, when the vehicle is hit, the trigger assembly 21 can actively drive the transmission assembly 22 to move, so that the steering column 11 is retracted into the steering sleeve 12, and then the steering wheel is moved in the direction away from the occupant, so as to reduce the risk of the occupant being injured by the collision with the steering wheel, and since the collapse of the steering column 11 is not affected by the collision angle, the reliability of the collapse of the steering column 11 can be improved. Therefore, in the case of a collision of the vehicle, the embodiment of the utility model helps to improve the reliability of the collapse of the steering column 11, which is conducive to reducing the risk of the occupant.

[0049] In some embodiments, the vehicle further includes a seat, the steering system further includes a controller and a sensor, the sensor and the trigger assembly 21 are electrically connected to the controller, the sensor is arranged on the seat and is used to identify the body shape of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the trigger assembly 21 according to the trigger signal. There can be multiple sensors, and the multiple sensors are arranged at intervals at the seat cushion position of the seat, and the sensor can be a pressure sensor.

[0050] When the body size or weight of the occupant is large, the trigger assembly 21 can be used to delay the collapse of the steering column 11 (i.e., extend the trigger time of the gas generator 211), so that the steering column 11 can be in short contact with the occupant to provide certain support to the occupant, thereby absorbing the expansion energy of the occupant hitting the bottom and reducing the injury to the occupant. For another example, when the body size or weight of the occupant is small, the trigger assembly 21 can be used to delay the collapse of the steering column 11 (i.e., shorten the trigger time of the gas generator 211), thereby avoiding the problem that the steering column 11 is difficult to collapse and absorb energy during the collision of the occupant. Therefore, the steering system of the vehicle of the embodiment of the utility model can adjust the collapse time of the steering column 11 according to the occupants of different body shapes, and the safety is higher.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A steering system, characterized in that: include: A steering device (1), the steering device (1) comprising a steering column (11) and a steering sleeve (12), the steering column (11) being inserted into the steering sleeve (12), and one end of the steering column (11) being used for connecting to a steering wheel; A collapsing device (2), the collapsing device (2) comprising a trigger assembly (21) and a transmission assembly (22), the trigger assembly (21) being connected to the steering column (11) via the transmission assembly (22), the trigger assembly (21) being triggerable under the action of a collision force, and the trigger assembly (21) being able to drive the transmission assembly (22) to move, so as to drive the steering column (11) to move in a direction from one end of the steering column (11) adjacent to the steering wheel to one end of the steering column (11) away from the steering wheel.

2. The steering system according to claim 1, characterized in that: The transmission assembly (22) comprises a cylinder (221), a crushing member (222) and a rod (223); one end of the rod (223) is connected to the steering column (11); the other end of the rod (223) is arranged through the cylinder (221); the trigger assembly (21) can drive the rod (223) to move along the direction from one end of the steering column (11) adjacent to the steering wheel to one end of the steering column (11) away from the steering wheel; the crushing member (222) can be compressed and deformed under a preset external force value; the crushing member (222) is arranged in the cylinder (221), and the crushing member (222) is opposite to the crushing member (223) on the movement path of the rod (223).

3. The steering system according to claim 2, characterized in that: The transmission assembly (22) further comprises a piston (224), wherein the piston (224) is disposed in the cylinder body (221) and divides the cavity of the cylinder body (221) into a first chamber (2211) and a second chamber (2212), wherein the second chamber (2212) is disposed on a side of the first chamber (2211) away from the steering wheel along the axial direction of the rod body (223), the other end of the rod body (223) is penetrated through the first chamber (2211) and connected to the piston (224), the collapse member (222) is disposed in the second chamber (2212), and in an axial direction orthogonal to the rod body (223), the cross-sectional area of ​​the piston (224) is greater than the cross-sectional area of ​​the rod body (223).

4. The steering system according to claim 3, characterized in that: The trigger assembly (21) comprises a gas generator (211), wherein the gas generator (211) is arranged outside the cylinder (221) and is in communication with the first chamber (2211); Alternatively, the gas generator (211) is disposed in the first chamber (2211).

5. The steering system according to claim 3, characterized in that: The trigger assembly (21) comprises a gas generator (211) and a gas storage bottle (212); the gas storage bottle (212) is arranged outside the cylinder body (221) and is in communication with the first chamber (2211); and the gas generator (211) is arranged inside the gas storage bottle (212).

6. The steering system according to claim 5, characterized in that: The gas cylinder (212) extends axially along the steering column (11); the trigger assembly (21) further comprises a connecting pipe (213); the gas cylinder (212) is connected to the first chamber (2211) through the connecting pipe (213) along one end of the steering column (11); and the gas generator (211) is arranged adjacent to the gas cylinder (212) along the other end of the steering column (11).

7. The steering system according to claim 5, characterized in that: The steering system further comprises a controller and a sensor, wherein the sensor and the gas generator (211) are electrically connected to the controller, the sensor is used to identify the body posture of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the gas generator (211) according to the trigger signal.

8. The steering system according to any one of claims 2 to 7, characterized in that: The transmission assembly (22) further comprises a connecting member (225), one end of which is connected to one end of the rod body (223); a guide groove is provided on the side wall of the steering sleeve (12); the guide groove extends along the axial direction of the steering column (11); the other end of the connecting member (225) passes through the guide groove and is connected to the steering column (11); the connecting member (225) is slidably matched with the guide groove along the axial direction of the steering column (11).

9. A vehicle, characterized in that: A steering system comprising the following claim 1.

10. The vehicle according to claim 9, characterized in that The vehicle further comprises a seat, and the steering system further comprises a controller and a sensor, wherein the sensor and the trigger component (21) are electrically connected to the controller, the sensor is arranged on the seat and is used to identify the body shape of the occupant and transmit a trigger signal to the controller, and the controller is used to control the trigger time of the trigger component (21) according to the trigger signal.

Images