Suspension system capable of adjusting height along with steering
By designing the left and right suspensions and sliders to slide in opposite directions in the suspension system, the suspension height can be adjusted synchronously, solving the problem of body roll when the vehicle is turning and improving the stability and safety of the vehicle when cornering.
Patent Information
- Application Number
- CN202511103716.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2025-10-28
AI Technical Summary
Existing suspension systems are unable to effectively reduce body roll when a vehicle is turning, causing the vehicle to skid while cornering, which affects driving safety and stability.
A suspension system with adjustable height based on steering was designed. By sliding the left and right suspensions and sliders in opposite directions, and by using the steering tie rod to link the trapezoidal slider and the linkage rod, the height of the left and right suspensions can be adjusted synchronously to resist body roll.
It effectively reduces body roll, improves vehicle grip and driving stability when cornering, reduces understeer or oversteer, and enhances steering precision and safety.
Smart Images
Figure CN120840324A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an automotive suspension system, and more particularly to a suspension system with height adjustable according to steering. Background Technology
[0002] Vehicles are prone to sideslip when cornering at high speeds. Common reasons include: ① Centrifugal force: When a car turns, the friction between the tires and the ground provides centripetal force, allowing the vehicle to travel along the curve. If the speed is too high or the turning radius is too small, the required centripetal force exceeds the friction limit, and the vehicle will slide outwards. This is a direct manifestation of physical principles, and improvements beyond tire material are difficult. ② Vehicle design factors, such as the suspension system. For example, double wishbone suspension is a common automotive suspension system. Double wishbone suspension consists of two parallel V-shaped or A-shaped control arms and strut-type hydraulic shock absorbers. Double wishbone can effectively control camber and body roll. However, traditional double wishbone suspension consists of two parallel arms of equal length. Its advantage is that when the tire moves vertically, it moves in a straight line, and the camber angle remains unchanged. However, its disadvantage is that when the vehicle turns, body roll will change the camber angle. For example, when making a right turn, the vehicle leans to the left. At this time, the outer tires will have a slight positive camber angle, while the inner tires will have a negative camber angle. This situation causes the outer tires to bear most of the load, while the inner tires bear less load. In severe cases of vehicle tilt, the inner wheel may even lift off the ground and lose traction, leading to the vehicle sliding outwards. Therefore, developing a suspension system that reduces body roll during cornering would significantly reduce the likelihood of skidding. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a suspension system with adjustable height that can reduce body roll when a vehicle is cornering.
[0004] The technical solution adopted in this invention is as follows: A suspension system with adjustable height according to steering includes a left suspension and a right suspension; the left suspension includes a first upper control arm, a first lower control arm, and a first shock absorber, with one end of the first upper control arm and one end of the first lower control arm connected to the left front wheel, and the other ends of the first upper control arm and the first lower control arm connected to the vehicle frame; the right suspension includes a second upper control arm, a second lower control arm, and a second shock absorber, with one end of the second upper control arm and one end of the second lower control arm connected to the right front wheel, and the other ends of the second upper control arm and the second lower control arm connected to the vehicle frame; a left slider and a right slider are respectively provided on the left and right sides of the vehicle frame, and the left slider and the right slider can slide up and down in the vertical direction of the vehicle frame; the lower end of the first shock absorber is connected to the first upper control arm, the second lower control arm, and the third shock absorber. The first shock absorber is hinged to the lower control arm, and the upper end of the first shock absorber is hinged to the left slider. The lower end of the second shock absorber is hinged to the second lower control arm, and the upper end of the second shock absorber is hinged to the right slider. The frame is also equipped with a left height adjustment structure and a right height adjustment structure. The input ends of the left height adjustment structure and the right height adjustment structure are both connected to the steering tie rod of the steering mechanism. The output end of the left height adjustment structure is connected to the left slider, and the output end of the right height adjustment structure is connected to the right slider. When the steering mechanism drives the steering tie rod to move laterally, the left height adjustment structure and the right height adjustment structure adjust the height of the left slider and the right slider, respectively. During adjustment, the sliding direction of the left slider is always opposite to the sliding direction of the right slider.
[0005] Furthermore, the left height adjustment structure includes a left trapezoidal slider, and the right height adjustment structure includes a right trapezoidal slider. A trapezoidal slider connecting rod is provided between the left and right trapezoidal sliders. The left and right trapezoidal sliders are respectively connected to the two ends of the trapezoidal slider connecting rod. The trapezoidal slider connecting rod is parallel to the steering tie rod, and a connecting rod is provided between the trapezoidal slider connecting rod and the steering tie rod. The two ends of the connecting rod are respectively hinged to the trapezoidal slider connecting rod and the steering tie rod. The left and right sides of the frame are respectively provided with a left vertical slide groove and a right vertical slide groove. The left slider is disposed in the left vertical slide groove, and the right slider is disposed in the right vertical slide groove. The inner side of the frame is provided with a connecting rod that is connected to the left vertical slide groove and the right vertical slide groove. The left trapezoidal slider and the right trapezoidal slider are connected by a right vertical slide groove. The tip of the height-adjusting left trapezoidal slider enters the left vertical slide groove through the left trapezoidal slider through the left trapezoidal slider through the left through the left through the left through the left through the left through the right ...
[0006] Furthermore, the frame has a left vertical slide groove and a right vertical slide groove on its left and right sides, respectively. The left slider is disposed in the left vertical slide groove, and the right slider is disposed in the right vertical slide groove. A horizontal connecting rod is provided between the left height adjustment structure and the right height adjustment structure. The left height adjustment structure includes a left swing rod and a left adjusting rod. One end of the left swing rod is hinged to the frame, and one end of the left adjusting rod is hinged to the left slider. The other ends of the left swing rod and the left adjusting rod are both hinged to one end of the horizontal connecting rod. The right height adjustment structure includes a right swing rod and a right adjusting rod. One end of the right swing rod is hinged to the frame, and one end of the right adjusting rod is hinged to the right slider. The other ends of the right swing rod and the right adjusting rod are both hinged to the other end of the horizontal connecting rod. The horizontal connecting rod is arranged parallel to the steering tie rod, and a connecting rod is provided between the horizontal connecting rod and the steering tie rod. The two ends of the connecting rod are respectively hinged to the horizontal connecting rod and the steering tie rod.
[0007] Furthermore, the steering mechanism includes a steering control mechanism, a steering gear, and a steering transmission mechanism. The steering control mechanism transmits the steering force exerted by the driver turning the steering wheel to the steering gear. The steering gear converts the rotation of the steering wheel into the swing of the steering rocker arm or the linear reciprocating motion of the rack shaft. The steering transmission mechanism transmits the force and motion output by the steering gear to the wheels. The steering transmission mechanism includes a steering tie rod, with steering knuckle arms connected to both ends of the steering tie rod. The steering knuckle arms are connected to the wheels. Attached Figure Description
[0008] Figure 1 This is a top view of the suspension system; Figure 2 It is a 3D diagram of the suspension system; Figure 3 This is a schematic diagram of the overall structure of the suspension system from another perspective; Figure 4 This is a schematic diagram of a vehicle structure using the suspension system of the present invention; Figure 5 This is a schematic diagram of the vehicle structure from another perspective using the suspension system of the present invention; Figure 6 This is a schematic diagram of another embodiment of the left height adjustment structure and the right height adjustment structure. Detailed Implementation
[0009] Example 1 like Figures 1 to 5As shown, in this embodiment, the present invention includes a left suspension a and a right suspension b; the left suspension a includes a first upper control arm a1, a first lower control arm a2, and a first shock absorber a3, one end of the first upper control arm a1 and one end of the first lower control arm a2 are both connected to the left front wheel 1, and the other end of the first upper control arm a1 and the other end of the first lower control arm a2 are both connected to the vehicle frame 2; the right suspension b includes a second upper control arm b1, a second lower control arm b2, and a second shock absorber b3, one end of the second upper control arm b1 and one end of the second lower control arm b2 are both connected to the right front wheel 3, and the other end of the second upper control arm b1 and the other end of the second lower control arm b2 are both connected to the vehicle frame 2; a left slider 4 and a right slider 5 are respectively provided on the left and right sides of the vehicle frame 2, and the left slider 4 and the right slider 5 can slide up and down in the vertical direction of the vehicle frame 2; the lower end of the first shock absorber a3 is connected to the first upper control arm a1, a first lower control arm a2, and a first shock absorber b3. The lower control arm a2 is hinged to the first shock absorber a3, and the upper end of the first shock absorber a3 is hinged to the left slider 4. The lower end of the second shock absorber b3 is hinged to the second lower control arm b2, and the upper end of the second shock absorber b3 is hinged to the right slider 5. The frame 2 is also provided with a left height adjustment structure 6 and a right height adjustment structure 7. The input ends of the left height adjustment structure 6 and the right height adjustment structure 7 are both connected to the steering tie rod 8 of the steering mechanism. The output end of the left height adjustment structure 6 is connected to the left slider 4, and the output end of the right height adjustment structure 7 is connected to the right slider 5. When the steering mechanism drives the steering tie rod 8 to move laterally, the left height adjustment structure 6 and the right height adjustment structure 7 adjust the height of the left slider 4 and the right slider 5, respectively. During adjustment, the sliding direction of the left slider 4 is always opposite to the sliding direction of the right slider 5.
[0010] In this embodiment, when the steering mechanism drives the steering tie rod to move laterally, the left and right height adjustment structures adjust the heights of the left and right sliders respectively, and the left and right sliders slide in opposite directions. This design allows the vehicle body to tilt appropriately according to the steering direction during vehicle steering, increasing the vertical load on the outer wheels, thereby improving the grip of the outer wheels. This enables the vehicle to respond to steering commands more quickly and accurately, reducing understeer or oversteer and improving steering precision and stability.
[0011] When a vehicle turns, the body will tilt due to centrifugal force. Adjusting the left and right sliders in opposite directions can effectively counteract this tilt. For example, when turning left, the right slider slides upward, compressing the right shock absorber, while the left slider slides downward, extending the left shock absorber. This opposing motion balances the forces on both sides of the vehicle, reducing the tilt angle and allowing the vehicle to maintain a more stable posture while turning, thus improving driving safety.
[0012] In this embodiment, the left height adjustment structure 6 includes a left trapezoidal slider 9, and the right height adjustment structure 7 includes a right trapezoidal slider 10. A trapezoidal slider connecting rod 11 is provided between the left and right trapezoidal sliders 9 and 10, respectively. The left and right trapezoidal sliders 9 and 10 are connected to the two ends of the connecting rod 11. The connecting rod 11 is parallel to the steering tie rod 8, and a connecting rod 12 is provided between the connecting rod 11 and the tie rod 8. The two ends of the connecting rod 12 are respectively hinged to the connecting rod 11 and the tie rod 8. The left and right sides of the frame 2 are respectively provided with a left vertical slide groove 13 and a right vertical slide groove 14. The left slider 4 is disposed in the left vertical slide groove 13, and the right slider 5 is disposed in the right vertical slide groove 14. The inner side of the frame 2 is provided with a connecting rod to the left vertical slide groove 13 and the right vertical slide groove 14. The right vertical slide groove 14 is connected to the left trapezoidal slider through hole 15 and the right trapezoidal slider through hole 16; the tip of the height-adjusting left trapezoidal slider 9 enters the left vertical slide groove 13 through the left trapezoidal slider through hole 15, and the left slider 4 abuts against the inclined surface of the height-adjusting left trapezoidal slider 9 under the thrust of the first shock absorber a3; the tip of the height-adjusting right trapezoidal slider 10 enters the right vertical slide groove 14 through the right trapezoidal slider through hole 16, and the right slider 5... Under the thrust of the second shock absorber b3, the slider abuts against the inclined surface of the height-adjusting right trapezoidal slider 10; during operation, under the action of the linkage rod 12, when the height-adjusting left trapezoidal slider 9 enters the left trapezoidal slider through hole 15, the height-adjusting right trapezoidal slider 10 is pulled out from the right trapezoidal slider through hole 16; when the height-adjusting left trapezoidal slider 9 is pulled out from the left trapezoidal slider through hole 15, the height-adjusting right trapezoidal slider 10 enters the right trapezoidal slider through hole 16.
[0013] In this embodiment, the left and right trapezoidal height-adjusting sliders are connected by a trapezoidal slider linkage, and a connecting rod enables the trapezoidal slider linkage to be linked with the steering tie rod. During operation, when the left trapezoidal height-adjusting slider enters its through-hole, the right trapezoidal height-adjusting slider exits its through-hole, and vice versa. This design ensures the synchronicity of height adjustment on both sides, avoiding problems such as vehicle tilting and instability caused by asynchronous height adjustment, thus improving vehicle stability and safety during driving.
[0014] By using a linkage mechanism to achieve coordinated adjustment of left and right height, there is no need to set up separate and complex height adjustment drive devices for the left and right sides. This reduces the number of parts, simplifies the overall structure, lowers manufacturing costs and assembly difficulty, and also improves the reliability of the system, reducing the risk of overall functional failure due to the failure of multiple independent components.
[0015] The left and right trapezoidal sliders for height adjustment enter the left and right vertical slide grooves respectively through the left and right trapezoidal slider through-holes. Under the thrust of the shock absorber, the left and right sliders rest against the inclined surfaces of the trapezoidal sliders. This design makes the height adjustment process smoother and more precise. The inclined surfaces of the trapezoidal sliders provide stable support and guidance, ensuring that the sliders move along a predetermined trajectory within the slide grooves, thereby achieving precise adjustment of the vehicle height.
[0016] The first and second shock absorbers provide thrust to the left and right sliders, respectively, ensuring they remain in contact with the inclined surface of the trapezoidal slider. These shock absorbers not only absorb and cushion vibrations and impacts generated during vehicle operation, reducing damage to the height adjustment structure, but also guarantee close contact between the slider and the trapezoidal slider, further improving the stability and reliability of height adjustment.
[0017] By arranging the trapezoidal slider link parallel to the steering tie rod and connecting them via a linkage, the limited interior space of the vehicle is fully utilized, making the entire height adjustment structure more compact. This layout does not interfere with other components of the vehicle, ensuring the rationality and coordination of the overall vehicle structure.
[0018] In this embodiment, the steering mechanism includes a steering control mechanism 22, a steering gear 23, and a steering transmission mechanism 24. The steering control mechanism 22 transmits the steering force of the driver turning the steering wheel to the steering gear 23. The steering gear 23 converts the rotation of the steering wheel into the swing of the steering rocker arm or the linear reciprocating motion of the rack shaft. The steering transmission mechanism 24 transmits the force and motion output by the steering gear 23 to the wheels. The steering transmission mechanism 24 includes a steering tie rod 8, with steering knuckle arms 25 connected to both ends of the steering tie rod 8. The steering knuckle arms 25 are connected to the wheels.
[0019] The core component of the height adjustment system based on the double wishbone suspension of this invention is the upper pivot of the shock absorber. This pivot can slide up and down along the slide rail, and is pushed up and down by a laterally moving trapezoidal slider. When the vehicle turns right, the steering tie rod pushes the left trapezoidal slider to the left, compressing the upper support point of the shock absorber and causing it to slide downwards. The roll force generated by the turn causes the left front wheel suspension spring to compress, lowering the vehicle height. As the trapezoidal slider moves to the left, it compresses and pushes the upper support point of the left suspension downwards, raising the vehicle height and offsetting the roll and drop in vehicle height caused by the turn. At the same time, when turning right, the pressure on the upper support point of the right front wheel shock absorber decreases, causing the vehicle body to rise. The steering tie rod pulls the right trapezoidal slider to the left, causing it to move outwards and the upper support point of the shock absorber to slide upwards. The roll force generated by the turn causes the right front wheel suspension spring to extend, raising the vehicle height. As the trapezoidal slider moves to the left, it pulls the upper support point of the right suspension upwards. Due to the adjustment of the suspension height, the left and right suspensions maintain a good balance when cornering, increasing the vehicle's stability and handling.
[0020] Example 2 The difference between this embodiment and Embodiment 1 is that the specific structural design of the left height adjustment structure 6 and the right height adjustment structure 7 is different from that in Embodiment 1.
[0021] like Figure 6 As shown, in this embodiment, the left and right sides of the frame 2 are respectively provided with a left vertical slide groove 13 and a right vertical slide groove 14. The left slider 4 is disposed in the left vertical slide groove 13, and the right slider 5 is disposed in the right vertical slide groove 14. A horizontal connecting rod 17 is provided between the left height adjustment structure 6 and the right height adjustment structure 7. The left height adjustment structure 6 includes a left swing rod 18 and a left adjusting rod 19. One end of the left swing rod 18 is hinged to the frame 2, and one end of the left adjusting rod 19 is hinged to the left slider 4. The other ends of the left swing rod 18 and the left adjusting rod 19 are both connected to the water... One end of the horizontal connecting rod 17 is hinged; the right height adjustment structure 7 includes a right swing rod 20 and a right adjusting rod 21. One end of the right swing rod 20 is hinged to the frame 2, and one end of the right adjusting rod 21 is hinged to the right slider 5. The other ends of the right swing rod 20 and the right adjusting rod 21 are both hinged to the other end of the horizontal connecting rod 17; the horizontal connecting rod 17 is arranged parallel to the steering tie rod 8, and a connecting rod 12 is provided between the horizontal connecting rod 17 and the steering tie rod 8. The two ends of the connecting rod 12 are respectively hinged to the horizontal connecting rod 17 and the steering tie rod 8.
[0022] In this embodiment, the horizontal connecting rod and the steering tie rod are arranged parallel to each other and hinged together by a linkage rod to achieve synchronous force transmission. When the steering tie rod pushes the wheel to turn, the horizontal connecting rod can synchronously transmit torque to ensure that the height adjustment structures on both sides move in unison, avoiding steering interference or uneven tire wear caused by height differences.
[0023] In this embodiment, the left and right height adjustment structures are hinged to the slider via a swing rod and an adjustment rod, forming a multi-link linkage mechanism. This design can distribute the vertical load during steering (such as road impact) to the frame through the hinge points, reducing the stress concentration on a single component and extending component life. Simultaneously, the connecting rod is hinged at both ends to the horizontal connecting rod and the steering tie rod, providing a certain amount of elastic buffer space during steering. When the wheels encounter bumps or the steering angle is too large, the connecting rod can absorb the impact force through slight deformation, avoiding component breakage or steering jamming caused by rigid connections.
[0024] In this embodiment, the left and right height adjustment structures are linked by a horizontal connecting rod, enabling synchronous adjustment of the height on both sides of the vehicle frame. For example, when adjusting the vehicle's ground clearance, the left and right sliders rise and fall synchronously, resulting in high efficiency and ensuring the vehicle frame remains level. This prevents unilateral height changes from affecting steering geometry parameters (such as caster angle and toe angle), thus maintaining the stability of steering performance. Although height adjustment is linked to steering, the flexible connection through the hinge point and linkage ensures that their actions do not interfere with each other. During height adjustment, the steering tie rod can be finely adjusted via the linkage to drive the horizontal connecting rod, without affecting the output torque of the steering gear, ensuring the independence of steering operation.
[0025] In this embodiment, components such as the vertical slide, slider, and height adjustment structure are all independent modules that can be quickly disassembled or replaced via hinge points. For example, if the slider on one side is severely worn, it can be replaced directly without adjusting the overall structure, reducing maintenance costs. Furthermore, the slide and slider can be connected using highly wear-resistant materials (such as steel sleeves or plastic bushings) and equipped with dust covers to prevent dust intrusion, reducing wear and jamming risks after long-term use and ensuring smooth height adjustment and steering. Simultaneously, for vehicles requiring steering system upgrades (such as replacing tires with larger ones or reinforced tie rods), this design allows for quick adaptation of new components by adjusting the linkage length or slide travel, without redesigning the overall structure, thus improving vehicle modification flexibility.
[0026] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.
Claims
1. A suspension system with height adjustable with steering, comprising a left suspension (a) and a right suspension (b); the left suspension (a) comprising a first upper control arm (a1), a first lower control arm (a2), and a first shock absorber (a3), one end of the first upper control arm (a1) and one end of the first lower control arm (a2) being connected to a left front wheel (1), and the other end of the first upper control arm (a1) and the other end of the first lower control arm (a2) being connected to a vehicle frame (2); the right suspension (b) comprising a second upper control arm (b1), a second lower control arm (b2), and a second shock absorber (b3), one end of the second upper control arm (b1) and one end of the second lower control arm (b2) being connected to a right front wheel (3), and the other end of the second upper control arm (b1) and the other end of the second lower control arm (b2) being connected to a vehicle frame (2); characterized in that: The frame (2) is provided with a left slider (4) and a right slider (5) on its left and right sides respectively. The left slider (4) and the right slider (5) can slide up and down in the vertical direction of the frame (2). The lower end of the first shock absorber (a3) is hinged to the first lower control arm (a2), and the upper end of the first shock absorber (a3) is hinged to the left slider (4). The lower end of the second shock absorber (b3) is hinged to the second lower control arm (b2), and the upper end of the second shock absorber (b3) is hinged to the right slider (5). The frame (2) is also provided with a left height adjustment structure (6) and a right height adjustment structure (7). The input ends of the left height adjustment structure (6) and the right height adjustment structure (7) are both connected to the steering tie rod (8) of the steering mechanism. The output end of the left height adjustment structure (6) is connected to the left slider (4), and the output end of the right height adjustment structure (7) is connected to the right slider (5). When the steering mechanism drives the steering tie rod (8) to move laterally, the left height adjustment structure (6) and the right height adjustment structure (7) adjust the height of the left slider (4) and the right slider (5) respectively. During adjustment, the sliding direction of the left slider (4) is always opposite to the sliding direction of the right slider (5).
2. The suspension system with adjustable height according to steering as described in claim 1, characterized in that: The left height adjustment structure (6) includes a left height adjustment trapezoidal slider (9), and the right height adjustment structure (7) includes a right height adjustment trapezoidal slider (10). A trapezoidal slider connecting rod (11) is provided between the left height adjustment trapezoidal slider (9) and the right height adjustment trapezoidal slider (10). The left height adjustment trapezoidal slider (9) and the right height adjustment trapezoidal slider (10) are respectively connected to the two ends of the trapezoidal slider connecting rod (11). The trapezoidal slider connecting rod (11) is arranged parallel to the steering tie rod (8), and the trapezoidal slider... A connecting rod (12) is provided between the block connecting rod (11) and the steering tie rod (8). The two ends of the connecting rod (12) are respectively hinged to the trapezoidal slider connecting rod (11) and the steering tie rod (8). The left and right sides of the frame (2) are respectively provided with a left vertical slide groove (13) and a right vertical slide groove (14). The left slider (4) is set in the left vertical slide groove (13), and the right slider (5) is set in the right vertical slide groove (14). The inner side of the frame (2) is provided with a connecting rod that is connected to the left vertical slide groove (13) and the right vertical slide groove (8). The left trapezoidal slider through hole (15) and the right trapezoidal slider through hole (16) are connected to the right vertical slide groove (14); the tip of the height-adjusting left trapezoidal slider (9) enters the left vertical slide groove (13) through the left trapezoidal slider through hole (15), and the left slider (4) is pressed against the inclined surface of the height-adjusting left trapezoidal slider (9) under the thrust of the first shock absorber (a3); the tip of the height-adjusting right trapezoidal slider (10) enters the right vertical slide groove (14) through the right trapezoidal slider through hole (16), and the right slider (5) is connected to the right vertical slide groove (14) through the right trapezoidal slider through hole (16), and the right slider (5) is connected to the right vertical slide groove (14) through the left trapezoidal slider through hole (15). Under the thrust of the second shock absorber (b3), the height-adjusting right trapezoidal slider (10) is pressed against the inclined surface; during operation, under the action of the linkage rod (12), when the height-adjusting left trapezoidal slider (9) enters the left trapezoidal slider through hole (15), the height-adjusting right trapezoidal slider (10) is pulled out from the right trapezoidal slider through hole (16); when the height-adjusting left trapezoidal slider (9) is pulled out from the left trapezoidal slider through hole (15), the height-adjusting right trapezoidal slider (10) enters the right trapezoidal slider through hole (16).
3. The suspension system with adjustable height according to steering as described in claim 1, characterized in that: The frame (2) has a left vertical slide groove (13) and a right vertical slide groove (14) on its left and right sides respectively. The left slider (4) is located in the left vertical slide groove (13), and the right slider (5) is located in the right vertical slide groove (14). A horizontal connecting rod (17) is provided between the left height adjustment structure (6) and the right height adjustment structure (7). The left height adjustment structure (6) includes a left swing rod (18) and a left adjustment rod (19). One end of the left swing rod (18) is hinged to the frame (2), and one end of the left adjustment rod (19) is hinged to the left slider (4). The other ends of the left swing rod (18) and the left adjustment rod (19) are both connected to the horizontal connecting rod (17). 17) One end is hinged; the right height adjustment structure (7) includes a right swing rod (20) and a right adjustment rod (21). One end of the right swing rod (20) is hinged to the frame (2), and one end of the right adjustment rod (21) is hinged to the right slider (5). The other end of the right swing rod (20) and the other end of the right adjustment rod (21) are both hinged to the other end of the horizontal connecting rod (17). The horizontal connecting rod (17) is arranged parallel to the steering tie rod (8), and a connecting rod (12) is provided between the horizontal connecting rod (17) and the steering tie rod (8). The two ends of the connecting rod (12) are respectively hinged to the horizontal connecting rod (17) and the steering tie rod (8).
4. The suspension system with adjustable height according to steering as described in claim 1, characterized in that: The steering mechanism includes a steering control mechanism (22), a steering gear (23), and a steering transmission mechanism (24). The steering control mechanism (22) transmits the steering force of the driver turning the steering wheel to the steering gear (23). The steering gear (23) converts the rotation of the steering wheel into the swing of the steering rocker arm or the linear reciprocating motion of the rack shaft. The steering transmission mechanism (24) transmits the force and motion output by the steering gear (23) to the wheels. The steering transmission mechanism (24) includes a steering tie rod (8), and the two ends of the steering tie rod (8) are connected to steering knuckle arms (25). The steering knuckle arms (25) are connected to the wheels.