A vehicle

Abstract

The application relates to the technical field of vehicles and discloses a vehicle, which comprises a frame assembly, a suspension assembly, a steering assembly and a front wheel, the suspension assembly comprises a lower swing arm, the lower swing arm is installed on the frame assembly; the steering assembly comprises a steering gear, a tie rod and a steering knuckle, the steering knuckle is installed on the lower swing arm, the steering knuckle has a rotation freedom degree relative to the lower swing arm, the steering gear is connected with the steering knuckle through the tie rod, and the steering gear comprises an output shaft; the front wheel is installed on the steering knuckle; wherein the vehicle comprises a straight running state and a steering state; when the vehicle is in the straight running state, the distance D between the axis of the output shaft and the axis of the front wheel in the front-rear direction of the vehicle satisfies 0mm<=D<=50mm. The output shaft of the steering gear is arranged near the axis of the front wheel, the tie rod is also arranged near the axis of the front wheel, the swing angle of the front wheel is prevented from being affected by the tie rod, the swing angle of the front wheel is increased, the turning radius of the vehicle is reduced, and the turning flexibility of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle. Background Technology

[0002] Vehicles typically consist of a chassis assembly, a suspension assembly, and a steering assembly. The steering assembly is mounted on the chassis assembly via the suspension assembly. Because the front of existing vehicles usually includes a driver's seat and a passenger seat, the space requirements in the left and right directions are relatively large. As a result, the steering angle of the steering assembly driving the front wheels is usually less than or equal to 40°, making the vehicle's steering performance not flexible enough and increasing the difficulty of parking and turning the vehicle in narrow areas. Summary of the Invention

[0003] This application provides a vehicle for increasing the vehicle's steering angle and improving the vehicle's steering flexibility.

[0004] To achieve the above objectives, the main technical solutions adopted in this application include: This application provides a vehicle including a frame assembly, a suspension assembly, a steering assembly, and front wheels. The suspension assembly includes a lower control arm mounted on the frame assembly. The steering assembly includes a steering gear, a tie rod, and a steering knuckle. The steering knuckle is mounted on the lower control arm and has a rotational degree of freedom relative to the lower control arm. The steering gear is connected to the steering knuckle via the tie rod and controls the rotation of the steering knuckle. The steering gear includes an output shaft extending in the left-right direction of the vehicle. The front wheels are mounted on the steering knuckle. The vehicle includes a straight-moving state and a steering state. When the vehicle is in a straight-moving state, the distance D between the axis of the output shaft and the axis of the front wheel in the forward-backward direction of the vehicle satisfies: 0mm ≤ D ≤ 50mm.

[0005] Furthermore, the vehicle also includes a driver's seat located in the center of the vehicle along the left-right direction.

[0006] Furthermore, the vehicle has a first plane that is perpendicular to the left and right direction of the vehicle. When the vehicle is traveling in a straight line, the distance between the first plane and the two front wheels is the same, and the first plane passes through the driver's seat.

[0007] Furthermore, the frame assembly includes two front longitudinal beams, a first force transmission beam, and a seat beam. The two front longitudinal beams and the seat beam are parallel to the front-rear direction of the vehicle, and the front longitudinal beams and the seat beam are spaced apart. Along the left-right direction of the vehicle, a first plane passes through the seat beam, and the front and rear ends of the first force transmission beam are connected to the front longitudinal beams and the seat beam, respectively.

[0008] Furthermore, the steering gear includes an input shaft, the vehicle has a first plane, the first plane is perpendicular to the left and right direction of the vehicle, when the vehicle is in a straight state, the distance between the first plane and the two front wheels is the same; when viewed along the front and rear direction of the vehicle, the distance between the input shaft and the first plane decreases from bottom to top, and the tilt angle A between the input shaft and the first plane satisfies: 5°≤A≤10°.

[0009] Furthermore, the steering assembly also includes a steering shaft, which, along its extension direction, includes a first end and a second end, the first end being connected to the input shaft; and the second end being located in the middle of the vehicle along the left-right direction.

[0010] Furthermore, the distance L between the axis of the second end and the first plane satisfies: 20mm≤L≤100mm.

[0011] Furthermore, the vehicle also includes an instrument beam, with a first mounting portion in the middle of the instrument beam along the left-right direction of the vehicle, and at least a portion of the steering shaft is mounted on the first mounting portion.

[0012] Furthermore, the vehicle includes a front bulkhead and two spaced-apart wheel arches, the two wheel arches being symmetrical about a first plane; along the left-right direction of the vehicle, the two ends of the instrument beam are respectively mounted on the wheel arches; along the front-rear direction of the vehicle, the front bulkhead is mounted on the front end of the two wheel arches, and an instrument mounting space is formed between the front bulkhead and the instrument beam.

[0013] Furthermore, the steering assembly also includes a steering lever and a drive rod. Along the extension direction of the steering lever, one end of the steering lever is rotatably mounted on the lower control arm, and the other end of the steering lever is connected to the steering knuckle via the drive rod; the end of the tie rod facing the steering knuckle is connected to the middle of the steering lever.

[0014] By placing the steering gear output shaft near the axis of the front wheels, the tie rod is also placed near the axis of the front wheels, preventing the tie rod from affecting the sway angle of the front wheels. This increases the sway angle of the front wheels, reduces the turning radius of the vehicle, and improves the vehicle's turning agility. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of the vehicle provided in this application.

[0017] Figure 2 yes Figure 1 The diagram shows the positional relationship between the output shaft of the steering system and the axis of the front wheel of the vehicle.

[0018] Figure 3 yes Figure 1 The diagram shows the assembly of the suspension and steering systems of the vehicle.

[0019] Figure 4 yes Figure 3 A magnified view of part B of the vehicle shown.

[0020] Figure 5 yes Figure 3 A partial structural schematic diagram of the steering assembly is shown.

[0021] Figure 6 yes Figure 5 A partial cross-sectional view of the connection between the steering lever and the lower control arm of the steering assembly shown.

[0022] Figure 7 yes Figure 1 The diagram shows the structure of the vehicle with the front wheels hidden.

[0023] Figure 8 yes Figure 7 The vehicle shown is viewed from below.

[0024] Explanation of reference numerals in the attached drawings: Frame assembly 1, front longitudinal beam 101, first force transmission beam 102, seat beam 103, frame beam 104, second force transmission beam 105, subframe 106, suspension assembly 2, lower control arm 201, mounting hole 2011, first hole section 20111, second hole section 20112, mounting shoulder 20113, shock absorber 202, steering assembly 3, steering gear 301, input shaft 3011, output shaft 3012, steering shaft 302 First end 3021, second end 3022, mechanical shaft 3023, intermediate shaft 3024, steering knuckle 303, steering lever 304, transmission rod 305, bearing 306, inner ring 3061, outer ring 3062, ball bearing 3063, first shaft 307, tie rod 308, front wheel 4, first plane 5, instrument beam 6, first mounting part 601, instrument crossbeam 602, instrument longitudinal beam 603, front bulkhead 7, wheel cover 8, driver's seat 9. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, as one implementation, this application provides a vehicle including a frame assembly 1, a suspension assembly 2, a steering assembly 3, and front wheels 4. The frame assembly 1 is the load-bearing base of the vehicle and is used to mount the suspension assembly 2, engine assembly, etc. The suspension assembly 2 is used to buffer the vehicle sway caused by uneven ground during vehicle driving. The steering assembly 3 is used to drive the front wheels 4 of the vehicle to rotate, thereby realizing the vehicle turning.

[0027] Specifically, the suspension assembly 2 includes a lower control arm 201, which is mounted on the frame assembly 1 and can swing relative to the frame assembly 1 to reduce vibration during vehicle operation.

[0028] The steering assembly 3 includes a steering gear 301, a tie rod 308, and a steering knuckle 303. The steering knuckle 303 is mounted on the lower control arm 201 and has a rotational degree of freedom to rotate relative to the lower control arm 201. By rotating the steering knuckle 303 relative to the lower control arm 201, the front wheels 4 swing relative to each other, thereby enabling the vehicle to turn.

[0029] The front wheel 4 is mounted on the steering knuckle 303, and the front wheel 4 swings as the steering knuckle 303 rotates, so as to change the direction of the vehicle.

[0030] The steering gear 301 is connected to the steering knuckle 303 via the tie rod 308. When the vehicle's steering wheel is turned, the steering gear 301 is activated. The steering gear 301 then controls the tie rod 308 to move in the left and right directions of the vehicle. The movement of the tie rod 308 in the left and right directions of the vehicle causes the steering knuckle 303 to rotate, thereby causing the front wheels 4 to swing and thus steer the vehicle.

[0031] It should be noted that in this implementation, the swaying of the front wheel 4 refers to the swaying of the front wheel 4 relative to the front and rear directions of the vehicle, which is used to achieve vehicle turning.

[0032] The steering gear 301 includes an output shaft 3012 extending in the left-right direction of the vehicle. The output shaft 3012 is used to connect to the tie rod 308 to drive the steering knuckle 303 to rotate.

[0033] During vehicle operation, the vehicle can be in a straight-ahead state or a turning state.

[0034] When the vehicle is traveling straight, the output shaft 3012 axis is positioned close to the front wheel 4 axis along the vehicle's longitudinal direction.

[0035] By setting the axis of the output shaft 3012 near the axis of the front wheel 4, the tie rod 308 is also close to the axis of the front wheel 4, preventing the tie rod 308 from affecting the swing angle of the front wheel 4, thereby increasing the swing angle of the front wheel 4, reducing the turning radius of the vehicle, and improving the turning flexibility of the vehicle.

[0036] When the vehicle is traveling straight, the distance between the axis of the output shaft 3012 and the axis of the front wheel 4 along the longitudinal direction of the vehicle is D, satisfying: 0mm ≤ D ≤ 50mm. Further, the distance between the axis of the output shaft 3012 and the axis of the front wheel 4 is D, satisfying: 0mm ≤ D ≤ 25mm. Even further, the axis of the output shaft 3012 coincides with the axis of the front wheel 4.

[0037] Optionally, the distance between the axis of the output shaft 3012 and the axis of the front wheel 4 can be any value between 0mm and 50mm, such as: 0mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm. This setting avoids excessive distance between the axis of the output shaft 3012 and the axis of the front wheel 4, preventing the tie rod 308 from affecting the swing angle of the front wheel 4, increasing the swing angle of the front wheel 4, thereby reducing the vehicle's turning radius and improving its turning agility.

[0038] It should be noted that, viewed along the height of the vehicle, the axis of the output shaft 3012 can be located at the front end of the front wheel 4 axis, while in some other implementations, the axis of the steering gear 301 output shaft can be located at the rear end of the front wheel 4 axis.

[0039] To more clearly illustrate the technical solution of this application, the following definitions are provided: Figure 1 The directions shown are front, back, left, right, up, and down. The front-to-back direction of the vehicle is... Figure 1 The front-to-back direction is shown. The left-to-right direction of the vehicle is... Figure 1 The left and right directions are shown. The up and down directions of the vehicle are... Figure 1 The up and down directions are shown.

[0040] like Figure 3 As shown, in one implementation, the steering gear 301 includes an input shaft 3011. When the steering wheel of the vehicle is turned, the input shaft 3011 rotates simultaneously with the steering wheel to convert the rotation of the steering wheel into the movement of the tie rod 308, thereby driving the steering knuckle 303 to rotate.

[0041] The vehicle has a first plane 5, which is perpendicular to the left and right direction of the vehicle. When the vehicle is traveling straight, the distance between the first plane 5 and the two front wheels 4 is the same. When viewed along the front-rear direction of the vehicle, the distance between the input shaft 3011 and the first plane 5 decreases from bottom to top. That is, the input shaft 3011 is inclined towards the middle of the vehicle from bottom to top, which increases the distance between the input shaft 3011 and the sides of the vehicle. This prevents the front wheels 4 from interfering with the input shaft 3011 during the swinging process, so as to improve the swing angle of the front wheels 4, thereby reducing the turning radius of the vehicle and improving the turning flexibility of the vehicle.

[0042] As one implementation, when viewed along the vehicle's longitudinal direction, the tilt angle A between the input shaft 3011 and the first plane 5 satisfies: 5° ≤ A ≤ 10°. Further, when viewed along the vehicle's longitudinal direction, the tilt angle A between the input shaft 3011 and the first plane 5 satisfies: 6.5° ≤ A ≤ 8.5°. Even further, when viewed along the vehicle's longitudinal direction, the tilt angle A between the input shaft 3011 and the first plane 5 is 7.5°.

[0043] Optionally, the tilt angle between the input shaft 3011 and the first plane 5 can be any value between 5° and 10°, such as 5°, 6°, 7°, 8°, 9°, and 10°.

[0044] The above settings prevent the tilt angle between the input shaft 3011 and the first plane 5 from being too large or too small, ensuring that the vehicle's steering shaft 302 can be connected to the input shaft 3011 via a universal joint.

[0045] like Figure 3 , Figure 4 and Figure 5 As shown, in one implementation, the steering assembly 3 also includes a steering lever 304 and a transmission rod 305. Along the extension direction of the steering lever 304, one end of the steering lever 304 is rotatably mounted on the lower control arm 201, and the other end of the steering lever 304 is connected to the steering knuckle 303 through the transmission rod 305. The end of the tie rod 308 facing the steering knuckle 303 is connected to the middle of the steering lever 304.

[0046] The steering gear 301 is connected to the middle of the steering lever 304 via the tie rod 308. The steering lever 304 drives the steering knuckle 303 to rotate, which increases the rotation angle of the steering knuckle 303, thereby increasing the swing angle of the front wheel 4 and reducing the turning radius of the vehicle.

[0047] like Figure 6 As shown, in one implementation, the steering lever 304 is mounted on the lower control arm 201 via the bearing 306. The bearing 306 connects the steering lever 304 and the lower control arm 201, which makes the rotational accuracy of the steering lever 304 higher, improves the rotational accuracy of the steering knuckle 303, and thus improves the steering accuracy of the front wheel 4.

[0048] As one implementation, the bearing 306 includes an inner ring 3061, an outer ring 3062, and balls 3063. The inner ring 3061 and the outer ring 3062 are arranged coaxially, and the balls 3063 are located between the inner ring 3061 and the outer ring 3062. The outer ring 3062 is mounted on the lower control arm 201, and the inner ring 3061 is connected to the steering lever 304 through the first shaft 307.

[0049] Along the axial direction of bearing 306, the size of the inner ring 3061 is larger than the size of the outer ring 3062.

[0050] Furthermore, the end face of the inner ring 3061 facing the steering lever 304 and the end face of the outer ring 3062 facing the steering lever 304 are on the same plane, such that the end face of the inner ring 3061 away from the steering lever 304 is lower than the end face of the outer ring 3062 away from the steering lever 304. This allows at least a portion of the inner ring 3061 to be connected to the mounting hole 2011 of the lower control arm 201 through a clearance fit or a transition fit, thereby reducing the yaw angle of the inner ring 3061, improving the stability of the steering lever 304's swing, and improving the steering accuracy of the steering mechanism.

[0051] From one side of the steering lever 304 to the side opposite to the steering lever 304, the mounting hole 2011 includes a first hole segment 20111 and a second hole segment 20112 connected in sequence. The inner diameter of the first hole segment 20111 is larger than the inner diameter of the second hole segment 20112, so that a mounting shoulder 20113 is formed between the first hole segment 20111 and the second hole segment 20112. The end face of the outer ring 3062 opposite to the steering lever 304 abuts against the mounting shoulder 20113, and the bearing 306 is positioned and installed through the mounting shoulder 20113.

[0052] At least a portion of the inner ring 3061 extends into the second hole section 20112, and the inner ring 3061 and the second hole section 20112 are connected by a transition fit or a clearance fit, so as to limit the yaw angle of the inner ring 3061 by the second hole section 20112, further improve the stability of the swing of the steering lever 304, and improve the steering accuracy of the steering mechanism.

[0053] As one implementation, the inner ring 3061 is connected to the first axis 307 via a spline.

[0054] In one implementation, nuts are installed at both ends of the first shaft 307, thereby mounting the lower control arm 201 and the steering lever 304 onto the first shaft 307.

[0055] In one implementation, the tie rod 308 is connected to the steering lever 304 via a ball joint, and the two ends of the transmission rod 305 are connected to the steering knuckle 303 and the steering lever 304 via ball joints, respectively.

[0056] like Figure 3 As shown, as one implementation, the steering assembly 3 also includes a steering shaft 302, which is used to connect the vehicle's steering wheel and steering gear 301.

[0057] Along the extension direction of the steering shaft 302, the steering shaft 302 includes a first end 3021 and a second end 3022. The first end 3021 is connected to the input shaft 3011, and the second end 3022 is connected to the vehicle's steering wheel. The steering shaft 302 is rotated by the steering wheel, thereby driving the steering gear 301 to work.

[0058] Along the left and right direction of the vehicle, the second end 3022 is located in the middle of the vehicle, so that the steering wheel of the vehicle is located in the middle of the vehicle, so that the driver's seat can be placed in the middle of the vehicle. On the one hand, it increases the comfort of the driver's seat (with enough space on both sides of the vehicle), and on the other hand, it allows the frame assembly 1 to give way enough space to increase the swing angle of the wheel 4, thereby improving the vehicle's agility.

[0059] In one implementation, the steering shaft 302 includes a mechanical shaft 3023 and an intermediate shaft 3024. The mechanical shaft 3023 is connected to the intermediate shaft 3024 via a universal joint, and the intermediate shaft 3024 is connected to the input shaft 3011 via a universal joint.

[0060] It should be noted that the end of the intermediate shaft 3024 facing the input shaft 3011 is the first end 3021, and the end of the mechanical shaft 3023 away from the intermediate shaft 3024 is the second end 3022.

[0061] The axis of the mechanical shaft 3023 is parallel to the first plane 5. Along the left and right direction of the vehicle, the mechanical shaft 3023 is located in the middle of the vehicle. By setting the mechanical shaft 3023 in the middle of the vehicle, the driver's seat can be located in the middle of the vehicle, so that the frame assembly 1 can make room for increasing the swing angle of the wheel 4.

[0062] In this implementation, the mechanical shaft 3023 is located between the first plane 5 and the steering gear 301 to prevent the distance between the mechanical shaft 3023 and the steering gear 301 from being too large, thus ensuring the rotational stability of the mechanical shaft 3023 and the input shaft 3011.

[0063] In some other embodiments, the mechanical shaft 3023 and the steering gear 301 may be located on opposite sides of the first plane 5.

[0064] It should be noted that this application describes the mechanical shaft 3023 as being located between the first plane 5 and the steering gear 301.

[0065] In one implementation, the distance L between the axis of the mechanical shaft 3023 (i.e., the axis of the second end 3022) and the first plane 5 satisfies: 20mm ≤ L ≤ 100mm. Further, the distance L between the axis of the mechanical shaft 3023 and the first plane 5 satisfies: 40mm ≤ L ≤ 80mm. Even further, the distance L between the axis of the mechanical shaft 3023 and the first plane 5 is 60mm.

[0066] Optionally, the distance between the axis of the mechanical shaft 3023 and the first plane 5 can be any value between 20mm and 100mm. For example: 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm.

[0067] The above settings prevent the distance between the axis of the mechanical shaft 3023 and the first plane 5 from being too large, ensuring that the driver's seat of the vehicle is close to the center in the left-right direction of the vehicle, improving the comfort of the driver's seat, and at the same time ensuring that the frame assembly 1 can make room for increasing the swing angle of the wheel 4.

[0068] The above settings prevent the distance between the axis of the mechanical shaft 3023 and the first plane 5 from being too small, thus ensuring the rotational stability of the mechanical shaft 3023 and the input shaft 3011.

[0069] like Figure 1 As shown, in one implementation, the vehicle also includes an instrument beam 6, which has a first mounting portion 601 in the middle along the left-right direction of the vehicle, and at least a portion of the mechanical shaft 3023 is mounted on the first mounting portion 601.

[0070] like Figure 1 As shown, in one implementation, the vehicle also includes two spaced wheel covers 8, which are symmetrical about the first plane 5 and are respectively fixed on the frame assembly 1. The left and right ends of the instrument beam 6 are respectively connected to the two wheel covers 8.

[0071] Specifically, the instrument beam 6 includes an instrument crossbeam 602, which extends along the left and right direction of the vehicle, and both ends of the instrument crossbeam 602 are connected to the wheel cover 8 respectively. The first mounting part 601 is located in the middle of the instrument crossbeam 602 so as to install the mechanical shaft 3023 in the middle of the vehicle.

[0072] Furthermore, by placing the mechanical pivot 3023 in the middle of the vehicle, the distance between the mechanical pivot 3023 and the wheel arch 8 is increased, thereby improving the comfort of the driver's seat.

[0073] like Figure 1As shown, as one implementation, the vehicle also includes a front bulkhead 7, which is installed at the front end of the two wheel arches 8 along the front-rear direction of the vehicle. By installing the front bulkhead 7 at the front end of the two wheel arches 8, the space of the vehicle's passenger compartment is increased, and the comfort of the vehicle is improved.

[0074] The front bulkhead 7 and the instrument beam 602 form an instrument mounting space.

[0075] It should be noted that, along the front-rear direction of the vehicle, there is a certain distance between the front bulkhead 7 and the instrument beam 602 of the instrument beam 6. The front bulkhead 7, the two wheel covers 8 and the instrument beam 602 together form an instrument mounting space, which is used to install the vehicle's instruments.

[0076] Furthermore, the instrument beam 6 includes an instrument longitudinal beam 603, the front and rear ends of which are connected to the front bulkhead 7 and the instrument crossbeam 602, respectively, so as to facilitate the installation of the vehicle's instruments on the instrument longitudinal beam 603.

[0077] like Figure 3 and Figure 8 As shown, as one implementation, the suspension assembly 2 also includes two shock absorbers 202. The lower ends of the two shock absorbers 202 are respectively connected to two steering knuckles 303, and the upper ends of the two shock absorbers 202 are respectively mounted on two wheel arches 8.

[0078] like Figure 1 As shown, as one implementation method, the vehicle also includes a driver's seat 9. Along the left and right direction of the vehicle, the driver's seat 9 is located in the middle of the vehicle. By installing the driver's seat 9 in the middle of the left and right direction of the vehicle, a certain gap is formed between the driver's seat 9 and the left and right sides of the vehicle, so that the driver in the driver's seat 9 can directly enter the rear passenger compartment space.

[0079] Specifically, the first plane 5 passes through the driver's seat 9.

[0080] It should be noted that in this implementation, the front row of the vehicle includes only one driver's seat 9, which creates a certain gap between the driver's seat 9 and the left and right sides of the vehicle.

[0081] like Figure 7 and Figure 8 As shown, in one implementation, the frame assembly 1 includes two front longitudinal beams 101, a first force transmission beam 102, and a seat beam 103. The two front longitudinal beams 101 and the seat beam 103 are parallel to the front-rear direction of the vehicle, and the two front longitudinal beams 101 are spaced apart from the seat beam 103.

[0082] Along the left-right direction of the vehicle, the first plane 5 passes through the seat beam 103.

[0083] Specifically, the two front longitudinal beams 101 are symmetrical about the first plane 5, and the first plane 5 bisects the seat beam 103. That is, the seat beam 103 is located in the middle of the vehicle in the left-right direction, and the driver's seat 9 is mounted on the seat beam 103.

[0084] By placing the seat beam 103 in the middle of the vehicle, the two front longitudinal beams 101 can be recessed toward the middle of the vehicle, thereby increasing the distance between the front longitudinal beams 101 and the front wheels 4, so as to increase the swing angle of the front wheels 4.

[0085] The front and rear ends of the first force transmission beam 102 are connected to the front longitudinal beam 101 and the seat beam 103, respectively. The front longitudinal beam 101 and the seat beam 103 are connected through the first force transmission beam 102 so as to transmit the force acting on the front longitudinal beam 101 to the seat beam 103 and improve the safety of the vehicle during a collision.

[0086] As one implementation, the frame assembly 1 also includes a frame beam 104 and a second force transmission beam 105. The frame beam 104 is located on the left and right sides of the frame assembly 1 and is spaced apart from the seat beam 103. The front and rear ends of the second force transmission beam 105 are connected to the front longitudinal beam 101 and the frame beam 104, respectively. The front longitudinal beam 101 and the frame beam 104 are connected by the first force transmission beam 102 so that the force acting on the front longitudinal beam 101 can be transmitted to the frame beam 104, thereby improving the safety of the vehicle during a collision.

[0087] The end of the second force transmission beam 105 facing the front longitudinal beam 101 is connected to the connection between the first force transmission beam 102 and the front longitudinal beam 101, so as to transmit the force on the front longitudinal beam 101 to the first force transmission beam 102 and the second force transmission beam 105 respectively.

[0088] As one implementation, the chassis assembly 1 also includes a subframe 106, with both ends of the subframe 106 fixed to two front longitudinal beams 101 along the left-right direction of the vehicle.

[0089] The left and right lower control arms 201 of the suspension assembly 2 are respectively mounted on the subframe 106.

[0090] Specifically, the lower control arm 201 is rotatably mounted on the subframe 106 at the end facing the subframe 106, and the lower control arm 201 is rotatably mounted on the steering knuckle 303 at the end facing the steering knuckle 303. Furthermore, the dimension of the lower control arm 201 in the vehicle longitudinal direction increases from the side closer to the steering knuckle 303 to the side closer to the subframe 106, thereby increasing the rotation angle of the steering knuckle 303 and thus increasing the swing angle of the front wheel 4.

[0091] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0092] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A vehicle, characterized in that, include: Chassis assembly (1); The suspension assembly (2) includes a lower control arm (201) which is mounted on the frame assembly (1). The steering assembly (3) includes a steering gear (301), a tie rod (308), and a steering knuckle (303). The steering knuckle (303) is mounted on the lower control arm (201) and has a rotational degree of freedom to rotate relative to the lower control arm (201). The steering gear (301) is connected to the steering knuckle (303) via the tie rod (308) and controls the rotation of the steering knuckle (303) via the steering gear (301). The steering gear (301) includes an output shaft (3012) extending in the left-right direction of the vehicle. Front wheel (4), the front wheel (4) is mounted on the steering knuckle (303); The vehicle includes both a straight-going state and a turning state; When the vehicle is traveling in a straight line, the distance D between the axis of the output shaft (3012) and the axis of the front wheel (4) along the front-rear direction of the vehicle satisfies: 0mm≤D≤50mm.

2. The vehicle according to claim 1, characterized in that, The vehicle also includes a driver's seat (9) located in the middle of the vehicle along the left-right direction.

3. A vehicle according to claim 2, characterized in that, The vehicle has a first plane (5) that is perpendicular to the left and right direction of the vehicle. When the vehicle is in a straight-line state, the distance between the first plane (5) and the two front wheels (4) is the same. The first plane (5) passes through the driver's seat (9).

4. A vehicle according to claim 3, characterized in that, The frame assembly (1) includes two front longitudinal beams (101), a first force transmission beam (102) and a seat beam (103). The two front longitudinal beams (101) and the seat beam (103) are parallel to the front-rear direction of the vehicle, and the front longitudinal beams (101) and the seat beam (103) are spaced apart. Along the left-right direction of the vehicle, the first plane (5) passes through the seat beam (103), and the front and rear ends of the first force transmission beam (102) are connected to the front longitudinal beam (101) and the seat beam (103) respectively.

5. A vehicle according to claim 1, characterized in that, The steering gear (301) includes an input shaft (3011), the vehicle has a first plane (5) that is perpendicular to the left and right direction of the vehicle, and when the vehicle is in a straight-line state, the distance between the first plane (5) and the two front wheels (4) is the same. When viewed along the front-rear direction of the vehicle, the distance between the input shaft (3011) and the first plane (5) decreases from bottom to top, and the tilt angle A between the input shaft (3011) and the first plane (5) satisfies: 5°≤A≤10°.

6. A vehicle according to claim 5, characterized in that, The steering assembly (3) further includes a steering shaft (302), and along the extending direction of the steering shaft (302), the steering shaft (302) includes a first end (3021) and a second end (3022), the first end (3021) being connected to the input shaft (3011); Along the left-right direction of the vehicle, the second end (3022) is located in the middle of the vehicle.

7. A vehicle according to claim 6, characterized in that, The distance L between the axis of the second end (3022) and the first plane (5) satisfies: 20mm≤L≤100mm.

8. A vehicle according to claim 6, characterized in that, The vehicle also includes an instrument beam (6), which has a first mounting portion (601) at its center along the left-right direction of the vehicle, and at least a portion of the steering shaft (302) is mounted on the first mounting portion (601).

9. A vehicle according to claim 8, characterized in that, The vehicle includes a front bulkhead (7) and two spaced wheel arches (8), the two wheel arches (8) being symmetrical about the first plane (5); Along the left-right direction of the vehicle, the two ends of the instrument beam (6) are respectively mounted on the wheel cover (8); Along the front-rear direction of the vehicle, the front bulkhead (7) is installed at the front end of the two wheel arches (8), and an instrument mounting space is formed between the front bulkhead (7) and the instrument beam (6).

10. A vehicle according to claim 1, characterized in that, The steering assembly (3) further includes a steering lever (304) and a transmission rod (305). Along the extension direction of the steering lever (304), one end of the steering lever (304) is rotatably mounted on the lower control arm (201), and the other end of the steering lever (304) is connected to the steering knuckle (303) through the transmission rod (305). The end of the tie rod (308) facing the steering knuckle (303) is connected to the middle of the steering lever (304).

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