A suspension assembly for a vehicle

Abstract

The present disclosure discloses a suspension assembly (1000) for a vehicle is disclosed. The suspension assembly (1000) includes a leaf spring (100) connectable to a frame (2000) of the vehicle. The suspension assembly includes a pair of knuckles (200, 300) connectable to the leaf spring (100). Each knuckle includes a first arm (204, 304) extending normally and a second arm (205, 305) extending diagonally. The suspension assembly includes a plurality of links (1001 to 1004) each connectable to a portion of the pair of knuckles (200, 300) on one end and connectable to the frame (2000) on another end. With such configuration, the suspension assembly (1000) may provide better control and drivability of the vehicle while reducing number of links.

Description

“A SUSPENSION ASSEMBLY FOR A VEHICLE” TECHNICAL FIELD

[0001] Present disclosure, in general, relates to the field of automobiles. Particularly, but not exclusively, the present disclosure relates to a suspension assembly for a vehicle.BACKGROUND OF THE DISCLOSURE

[0002] Vehicles, including passenger vehicles and commercial vehicles, are equipped with a suspension system to facilitate connection and regulate relative motion between wheels and vehicle body. Accordingly, the suspension system is configured to perform functions such as, but not limited to, support weight of the vehicle, maintain ground clearance of the vehicle, ensuring that tyres coupled to wheels remain in contact with ground, and among others. The suspension system may generally include components such as, but not limited to, springs or hydraulic members that support weight of and on the vehicle. The suspension system may include damping members that are configured to offer resistance to spring movement and dissipate spring energy, and shock absorbers that are configured to reduce effect of shock forces.

[0003] Conventionally, the suspension systems are classified as dependent suspension systems, independent suspension systems and semi-independent suspension systems, based on connectivity between the vehicle body and the wheels of the vehicle. For instance, in a dependent suspension system, at least two wheels across same axle are connected, where a bump or jerk at one wheel affects the other wheel. In an independent suspension system, each wheel is independently coupled to the vehicle, where a bump or jerk at one wheel does not affect the other wheel. On the other hand, a semi -independent suspension system includes a cross beam coupled to a pair of trailing arms, each trailing arm being individually coupled to a wheel. The cross beam provides additional rolling stiffness compared to the independent suspension systems.

[0004] Conventionally, compared to other systems, independent suspension systems provide comparatively better control and drivability for the vehicle. However, independent suspension systems are expensive and involve multiple linkages with complex construction and additional components such as, but not limited to, torsion beam which occupies more space and reduces boot space of the vehicle. Furthermore, the independent suspension systems require provision of a crank in frame of the vehicle to accommodate compression and decompression of coil springs in the suspension, which further reduces boot space in vehicles having independent suspension systems and leads to packaging issues in vehicles.

[0005] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the conventional mechanisms.

[0006] The drawbacks / difficulties / disadvantages / limitations of the conventional techniques explained in the background section are just for exemplary purpose and the disclosure would never limit its scope only such limitations. A person skilled in the art would understand that this disclosure and below mentioned description may also solve other problems or overcome the other drawbacks / disadvantages of the conventional arts which are not explicitly captured above.SUMMARY OF THE DISCLOSURE

[0007] One or more shortcomings of the prior art are overcome by a suspension assembly as claimed and additional advantages are provided through the suspension assembly as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.

[0008] In one non-limiting embodiment of the present disclosure, a suspension assembly for a vehicle is disclosed. The suspension assembly includes a leaf spring connectable to a frame of the vehicle. The suspension assembly includes a pair of knuckles connectable to each end of the leaf spring. Each knuckle of the pair ofknuckles includes a base defining an outer portion and an inner portion. The outer portion is configured to receive a portion of a wheel hub of the vehicle. The base is defined with a first end and a second end opposite to the first end. Each knuckle of the pair of knuckles includes a first arm extending normally away from the base on the inner portion. The first arm is defined at the first end of the base. Each knuckle of the pair of knuckles includes a second arm extending diagonally away from the second end of the base. The second arm is defined with a first provision. Each knuckle of the pair of knuckles includes an intermediate arm extending normally from the base between the first end. The leaf spring is pivotally connectable between the first arm and the intermediate arm and at least a portion of the intermediate arm extends in a direction normal to the first arm. The suspension assembly includes a plurality of links each connectable to a portion of the pair of knuckles on one end and connectable to the frame on another end.

[0009] In an embodiment, the plurality of links includes a first pair of links each connectable to a portion of the first arm of each of the pair of knuckles on one end and pivotally connectable to the frame on another end.

[0010] In an embodiment, the suspension assembly includes a second pair of links each pivotally connectable to the first provision of the second arm of each of the pair of knuckles on one end and pivotally connectable to the frame on another end.

[0011] In an embodiment, the leaf spring is a single leaf spring.

[0012] In an embodiment, the second pair of links is configured to extend normally to corresponding link of the first pair of links.

[0013] In an embodiment, the intermediate arm is defined with a second provision to receive a portion of a damping member of the suspension assembly.

[0014] In an embodiment, the suspension assembly includes at least one elastic member mounted on a central portion of the leaf spring on either sides.

[0015] In an embodiment, the suspension assembly includes a bracket mounted on the at least one elastic member to connect the leaf spring to the frame of the vehicle.

[0016] In an embodiment, the suspension assembly includes a plurality of bushes configured to pivotally couple the leaf spring, the second pair of links and the damping member.

[0017] In an embodiment, the base is defined with a flange at the first end perpendicular to the first arm to rigidly couple corresponding link of the first pair of links.

[0018] In an embodiment, the base is defined with a cavity between the first arm and the intermediate arm to receive the wheel hub.

[0019] In an embodiment, suspension assembly includes a third pair of links pivotally connectable to at least one side of the first arm on one end and pivotally connectable to the frame and extending parallel to the second pair of links.

[0020] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

[0021] The novel features and characteristic of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures where like reference numerals represent like elements and in which:

[0022] Figure la is a top perspective view of a frame of a vehicle depicting a suspension assembly, in accordance with an embodiment of the present disclosure.

[0023] Figure lb is a bottom perspective view of the frame of the vehicle depicting the suspension assembly, in accordance with an embodiment of the present disclosure.

[0024] Figure 2a is an exploded view of the suspension assembly, in accordance with an embodiment of the present disclosure.

[0025] Figure 2b is a perspective view of the suspension assembly, in accordance with an embodiment of the present disclosure.

[0026] Figure 2c is another perspective view of the suspension assembly, in accordance with an embodiment of the present disclosure.

[0027] Figure 3a is an exploded view of the suspension assembly depicting a third pair of links, in accordance with an embodiment of the present disclosure.

[0028] Figure 3b is an perspective view of the suspension assembly depicting the third pair of links, in accordance with an embodiment of the present disclosure.

[0029] Figure 3c is another perspective view of the suspension assembly depicting the third pair of links, in accordance with an embodiment of the present disclosure.

[0030] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the system and method illustrated herein may be employed without departing from the principles of the disclosure described herein.DETAILED DESCRIPTION

[0031] While the embodiments in the disclosure are subject to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the figures and will be described below. It should beunderstood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

[0032] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a suspension assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more elements in a system proceeded by “comprises... a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or method.

[0033] Embodiments of the present disclosure disclose a suspension assembly for a vehicle. The suspension assembly includes a leaf spring connectable to a frame of the vehicle. The suspension assembly includes a pair of knuckles connectable to each end of the leaf spring. Each knuckle of the pair of knuckles includes a base defining an outer portion and an inner portion. The outer portion is configured to receive a portion of a wheel hub of the vehicle,. The base is defined with a first end and a second end opposite to the first end. Each knuckle of the pair of knuckles includes a first arm extending normally away from the base on the inner portion. The first arm being defined at the first end of the base. Each knuckle of the pair of knuckles includes a second arm extending diagonally away from the second end of the base. The second arm is defined with a first provision. Each knuckle of the pair of knuckles includes an intermediate arm extending normally from the base between the first end. The leaf spring is pivotally connectable between the first arm and the intermediate arm and at least a portion of the intermediate arm extends in a direction normal to the first arm. The suspension assembly includes a plurality of links each connectable to a portion of the pair of knuckles on one end and connectable to the frame on another end. With such configuration, the suspension assembly may provide better control and drivability of the vehicle while reducing number of links as an independent suspension assembly. Further, suchconfiguration of the suspension assembly is less expensive and may reduce space required for rear suspension thereby increasing boot space and / or cargo space in vehicle.

[0034] The disclosure is described in the following paragraphs with reference to Figures la to 3c. In the figures, the same element or elements which have same functions are indicated by the same reference signs. One skilled in the art would appreciate that the suspension assembly as disclosed in the present disclosure may be used in any vehicle including but not liming to commercial vehicles, and passenger vehicles, and the like. The suspension assembly of the present disclosure may also be implemented in vehicles having a frame and a plurality of wheels, for suitably maneuvering the vehicle without deviating from the principles of the present disclosure.

[0035] It is to be noted that a person skilled in the art would be motivated from the present disclosure and modify construction of a suspension assembly for a vehicle and a vehicle including the suspension assembly, and the construction of the suspension assembly and the vehicle may vary depending on the field of application. However, such modifications should be construed within the scope of the present disclosure. Accordingly, the drawings show only those specific details that are pertinent to understand the embodiments of the present disclosure, so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein. In the drawings neither the complete vehicle nor the power transmission unit of the vehicle has been shown for the purpose of simplicity.

[0036] The following detailed description is merely exemplary in nature and is not intended to limit application and uses. Furthermore, there is no intention to be bound by any theory presented in the preceding background or summary or the following detailed description. It is to be understood that the disclosure may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices orcomponents illustrated in the attached drawings and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions or other physical characteristics relating to the embodiments that may be disclosed are not to be considered as limiting, unless the claims expressly state otherwise. Hereinafter, preferred embodiments of the present disclosure will be described referring to the accompanying drawings. While some specific terms directed to a specific direction will be used, the purpose of usage of these terms or words is merely to facilitate understanding of the present invention referring to the drawings. Accordingly, it should be noted that the meaning of these terms or words should not improperly limit the technical scope of the present invention.

[0037] Also, it is to be understood that the phraseology and terminology used herein is for description and should not be regarded as limiting. Unless specified or limited otherwise, the terms “accommodated,” “mounted,” “connected,” “supported,” and “coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, “connected” and “coupled” are not restricted to physical or mechanical connections or couplings. It is to be understood that this disclosure is not limited to the specific devices, methods, applications, conditions, or parameters described and / or shown herein and that the terminology used herein is to describe embodiments by way of example and is not intended to be limiting of the claimed invention. Hereinafter in the following description, various embodiments will be described. For purposes of explanation, specific configurations and details are outlined to provide a thorough understanding of the embodiments. However, it will also be apparent to one skilled in the art that the embodiments may be practiced without the specific details. Furthermore, well-known features may be omitted or simplified in order not to obscure the embodiment being described. Henceforth, the system is elucidated in detail referring to Figs. la to 3c.

[0038] In accordance with the present disclosure, a suspension assembly for a vehicle (not shown) is disclosed. The vehicle may be defined as any vehicle, forexample - passenger vehicles, commercial vehicles, heavy duty vehicles and likewise. Further, the vehicle may include vehicles powered by different sources of energy, for example - internal combustion engine (IC engine) powered vehicles, electric vehicles, hybrid vehicles, hydrogen fuel powered vehicles and likewise. In some examples, the vehicle disclosed in the present disclosure is for a passenger segment of the vehicle, for example - autonomous, semi-autonomous or manual driven passenger vehicles.

[0039] The vehicle may comprise a frame or chassis or body-in-white configured to support components of the vehicle including - power generating units, air conditioning units, exhaust units (for IC engine powered vehicles) and likewise. For example, the vehicle may comprise a front portion, an intermediate portion, and a rear portion, such that the power generating unit and other related components may be mounted on one of the front portion, rear portion and the intermediate portion of the vehicle. The vehicle further includes at least four wheels, such that two wheels are rotatably mounted on the front portion of the vehicle and defined as front wheels of the vehicle. The other two wheels are rotatably mounted on the rear portion of the vehicle and defined as rear wheels of the vehicle. In some examples the rear portion of the vehicle may be defined with boot space, and / or a cargo space and the like.

[0040] In an embodiment, the power generating unit may be an Internal Combustion (IC) engine configured to generate power by burning hydrocarbons as a fuel, for example - gasoline, petrol, diesel and the like, and other fuels including hydrogen and combinations thereof. In another embodiment, the power generating unit may be a traction motor powered by a High Voltage Battery / Battery Module which supplies electric current to the traction motor of the vehicle. The traction motor is operatively coupled to the front wheels, the rear wheels, or all wheels of the vehicle, in order to drive the vehicle. The vehicles which are driven by the traction motor are defined as electric vehicles.ioPCT2754

[0041] The body frame of the vehicle may further comprise side sill structures extending across the sides of a floor panel of the vehicle. In an embodiment, the body frame may comprise a left-side sill structure and a right side sill structure. The left side sill structure may extend along a left side of the floor panel. The right-side sill structure may extend across a right side of the floor panel. Each of the left-side sill structure and the right-side sill structure of the body frame may comprise an energy absorption composite structure formed therein.

[0042] Figures la illustrates a top perspective view of a frame (2000) of a vehicle [not shown in figures] depicting a suspension assembly (1000) and Figure lb illustrates a bottom perspective view of the frame (2000) depicting the suspension assembly (1000). In one implementation, the frame (2000) includes an underbody of the vehicle, mounted on a chassis [not shown explicitly in figures] of the vehicle. In another implementation, the frame (2000) includes a Body-in-white for vehicles having monocoque chassis. In The frame (2000) is defined with at least one curved portion to receive plurality of wheels (2001) on lateral sides of the frame (2000) as can be seen in Figure la. For the sake of illustration, the frame (2000) is depicted to receive a pair of rear wheels (2001) of the vehicle. The frame (2000) is defined by a first portion (2002a) and a second portion (2002b) extending from the first portion (2002a). The first portion (2002a) is structured to accommodate at least a portion of the suspension assembly (1000) at the bottom and accommodate an upper back [not shown explicitly in Figures] of the vehicle to define a boot space to accommodate cargo and the like. The second portion (2002b) is configured to extend away from the first portion (2002a) to receive a portion of the suspension assembly (1000). In an embodiment, the second portion (2002b) is defined by a plate structure extending from the first portion (2002a) in a stepped configuration, where the second portion (2002b) is lower relative to the first portion (2002a). In one implementation, the second portion (2002b) is integrally defined extending from the first portion (2002a). In another implementation, the second portion (2002b) is detachably mounted by a plurality of fasteners and the like. The stepped configuration of the first portion (2002a) and the second portion (2002b) are definedbased on diameter of the plurality of wheels (2001) and configuration of the suspension assembly (1000) and the same shall not be construed as a limitation.

[0043] Figure 2a illustrates an exploded view of the suspension assembly (1000). The suspension assembly (1000) includes a leaf spring (100) connectable to the frame (2000) of the vehicle at a central portion and is connectable to the plurality of wheels (2001) at either ends as can be seen in Figure lb. Referring back to Figure 2a, the suspension assembly (1000) includes at least one elastic member (1006) mounted on a central portion of the leaf spring (100) on either sides (i.e. on both sides). The at least one elastic member (1006) is configured to dampen at least a portion of vibrations of the leaf spring (100) at the central portion transmitted from the plurality of wheels (2001) on either ends. The at least one elastic member (1006) is made of elastomer material including, but not limited to, polyacrylic rubber and silicone rubber and the like. In an embodiment, the at least one elastic member (1006) may be made of any rubber material alone or in combination with the elastomer material. In the illustrative embodiment, the leaf spring (100) is a single leaf spring (100) connected to the second portion (2002b) at the central portion of the leaf spring (100). Such configuration of the leaf spring (100) reduces or eliminates transmission of vibrations / impact at one wheel to affect movement of another wheel connected on the other end of the leaf spring (100). Such configuration of the leaf spring (100) aids in function of the suspension assembly (1000) as an independent suspension assembly (1000) with less weight of the suspension assembly (1000). Additionally, the configuration of the leaf spring (100) aids to achieve or meet the performance requirement of an independent suspension assembly, while maintaining lower weight characteristics i.e., achieving the better performance with weight similar to a rear twist beam suspension system. The suspension assembly (1000) includes a bracket (1007) mounted on the at least one elastic member (1006) to connect the leaf spring (100) to the frame (2000) of the vehicle. For sake of explanation, the bracket (1007) is depicted as a pair of plates mounted on top and bottom of the at least one elastic member (1006) thereby mounting the at least one elastic member (1006) on the leaf spring (100) in asandwich configuration as can be clearly seen in Figure 2a. Such configuration of the bracket (1007) and the at least one elastic member (1006) dampen vibrations of the leaf spring (100) in both upward and downward directions.

[0044] Figure 2b is a perspective view of the suspension assembly (1000). Referring now to Figures 2a and 2b, the suspension assembly (1000) includes a pair of knuckles (200, 300) connectable to each end of the leaf spring (100). The pair of knuckles (200, 300) are configured to couple the plurality of wheels (2001) to the frame (2000) through the leaf spring (100). The pair of knuckles (200, 300) includes a first knuckle (200) connectable at one end of the leaf spring (100). The pair of knuckles (200, 300) includes a second knuckle (300) connectable at another end, opposite to the end connected to the first knuckle (200) as can be seen in Figure 2a and Figure 2b. Each knuckle of the pair of knuckles (200, 300) includes a base (201, 301) defining an outer portion (202, 302) and an inner portion (203, 303) defined opposite to the outer portion (202, 302). The base (201, 301) is defined by one of a square plate profile, a rectangular plate profile, a disc profile and the like. For sake of explanation, the base (201, 301) is depicted as rectangular plate to define the outer portion (202, 302) and the inner portion (203, 303) opposite to each other and to accommodate a wheel hub to achieve required toe and camber angles of corresponding wheel. The outer portion (202, 302) is configured to receive a portion of a wheel hub [not shown explicitly in figures] of the vehicle. In an embodiment, the base (201, 301) is defined with a cavity (1010) on the outer portion (202, 302) to receive a portion of the wheel hub. In the illustrative embodiment, the cavity (1010) is defined as a through hole extending from the outer portion (202, 302) toward the inner portion (203, 303) of the base (201, 301) as can be seen in Figure 2a to accommodate the wheel hub. The base (201, 301) is defined with a first end (201a, 301a) and a second end (201b, 301b) opposite to the first end (201a, 301a). In an embodiment, the first end (201a, 301a) and the second end (201b, 301b) are defined opposite to each other along lengthwise direction of the base (201, 301) as can be seen in Figure 2a.

[0045] Referring again to Figure 2a, each knuckle of the pair of knuckles (200, 300) include a first arm (204, 304) extending normally away from the base (201, 301) on the inner portion (203, 303). The first arm (204, 304) is defined at the first end (201a, 301a) of the base (201, 301). The first arm (204, 304) is either integrally formed extending from the base (201, 301) by one of casting, machining, welding and the like, or detachably connected to the first end (201a, 301a) of the base (201, 301) by a plurality of fasteners and the like. In the illustrative embodiment, the base (201, 301) is defined with the first arm (204, 304) integrally extending normally away from the base (201, 301) toward the leaf spring (100) to withstand load of the wheel hub. Further, vibrations from the plurality of wheels (2001) and loads from the body in white (BIW) are dampened or absorbed by the leaf spring (100). Furthermore, the leaf spring (100) is configured to provide roll stiffness to the suspension assembly (1000). Each knuckle of the pair of knuckles (200, 300) includes a second arm (205, 305) extending diagonally away from the second end (201b, 301b) of the base (201, 301). In an embodiment, the second arm (205, 305) is configured to extend diagonally at an angle in a range of 110 degrees to 170 degrees relative to the base (201, 301). The second arm (205, 305) is defined with a first provision (205a, 305a) at the end away from the base (201, 301). The first provision (205a, 305a) is defined by one of a U-shaped member, a V-shaped member, and the like where ends of the first provision (205a, 305a) are spaced apart from each other. In the illustrative embodiment, the second arm (205, 305) is defined to extend at an angle of 135 degrees in a stepped configuration to define the first provision (205a, 305a) at an offset from the second end (201b, 301b) as can be seen in Figure 2a.

[0046] Each knuckle of the pair of knuckles (200, 300) includes an intermediate arm (206, 306) extending normally from the base (201, 301) between the first end (201a, 301a) and the second end (201b, 301b) . The intermediate arm (206, 306) is defined between the first arm (204, 304) and the second arm (205, 305). In an embodiment, at least a portion of the intermediate arm (206, 306) extends in a direction substantially normal to the first arm (204, 304) (i.e., perpendicular to thefirst arm (204, 304)). The portion of the intermediate arm (206, 306) may extend substantially normal to the first arm (204, 304) in a range of 75 degrees to 105 degrees normally to the first arm (204, 304). The angle of extending of the portion of the intermediate arm (206, 306) relative to the first arm (204, 304) may be varied based on type of vehicle and design requirements of the suspension assembly (1000) and the same shall not be construed as a limitation. The intermediate arm (206, 306) is defined either proximal to the first arm (204, 304) or proximal to the second arm (205, 305) or midway between the first arm (204, 304) and the second arm (205, 305). In the illustrative embodiment, the intermediate arm (206, 306) is defined proximal to the second arm (205, 305) and defined away from the first arm (204, 304) to accommodate the ends of the leaf spring (100) between the first arm (204, 304) and the intermediate arm (206). The leaf spring (100) is pivotally connectable between the first arm (204, 304) and the intermediate arm (206, 306).

[0047] Further, the intermediate arm (206, 306) is defined with a second provision (206a, 306a) to receive a portion of a damping member (1005) of the suspension assembly (1000). The second provision (206a, 306a) is defined by one of a U-shaped member, a V-shaped member spaced apart from each other. In an embodiment, a portion of the intermediate arm (206, 306) is defined with the second provision (206a, 306a) and is configured to extend at an angle of 90 degrees relative to the first arm (204, 304) and the second arm (205, 305) as can be seen in Figure 2a. In an embodiment, profile of the first provision (205a, 305a) and the second provision (206a, 306a) and angle of extending relative to the first arm (204, 304) may be varied based on type of vehicle and design requirements of the suspension assembly (1000) and the same shall not be construed as a limitation. In an embodiment, length of the second arm (205, 305) is greater than the first arm (204, 304) and the second arm (205, 305) from the base (201, 301) as can be seen in Figure 2a to avoid interference of components being mounted thereto. In an embodiment, length of the second arm (205, 305) may be varied based on design requirements of the pair of knuckles (200, 300). The pair of knuckles (200, 300) are disposed facing each other across the ends of the leaf spring (100), where the armsof first knuckle (200) and arms of the second knuckle (300) are facing each other as best seen in Figure 2b. Such configuration of the pair of knuckles (200, 300) having the first arm (204, 304), the second arm (205, 305) and the intermediate arm (206) aids in compact configuration of the suspension assembly (1000) while accommodating the damping member (1005) and aiding in mounting the suspension assembly (1000) to the vehicle with a reduction in space required. Such configuration of the pair of knuckles (200, 300), the plurality of links (1001 to 1004) aid to increase boot space in the vehicle by a percentage in a range of 40 to 60% where the suspension assembly (1000) is mounted on a rear portion of the vehicle.

[0048] Figure 2c is another perspective view of the suspension assembly (1000). Referring now to Figures 2b and 2c, the suspension assembly (1000) includes a plurality of links (1001 to 1004) each connectable to a portion of the pair of knuckles (200, 300) on one end and connectable to the frame (2000) on another end. The plurality of links (1001 to 1004) includes a first pair of links (1001, 1002). Each link of the first pair of links (1001, 1002) is connectable to a portion of the first arm (204, 304) of each of the pair of knuckles (200, 300) on one end and pivotally connectable to the frame (2000) on another end. For instance, a link of the first pair of links (1001, 1002) is connectable to the first arm (204, 304) of the first knuckle (200), while another link of the first pair of links (1001, 1002) is connectable to the first arm (204, 304) of the second knuckle (300) as can be seen in Figure 2b. The first pair of links (1001, 1002) are defined by a vertical plate, an inclined plate, and the like. In the illustrative embodiment, the first pair of links (1001, 1002) are defined by vertical plate profile. One end of the first pair of links (1001, 1002) is pivotally coupled to the frame (2000) and the other end is rigidly fixed to the first arm (204, 304) of the pair of knuckles (200, 300). In an embodiment, the base (201, 301) is defined with a flange (1009) at the first end (201a, 301a) perpendicular to the first arm (204, 304) to rigidly couple corresponding link of the first pair of links (1001, 1002). The flange (1009) and the first pair of links (1001, 1002) extend parallel to each other as can be seen in Figure 2a. The flange (1009) and the first pair of links (1001, 1002) are coupled togetherby a plurality of fasteners. Such configuration of the first pair of links (1001, 1002) and the flange (1009) aids to suppress vibrations from the wheel towards the frame (2000) and the other wheel. The first pair of links (1001, 1002) are configured to absorb vibrations and / or loads from the corresponding wheel where the first pair of links (1001, 1002) are subjected to torsion as one end is rigidly coupled to the flange (1009) and other end is pivotally coupled to the frame (2000) as can be seen in Figure la.

[0049] Referring again to Figures 2a and 2b, the plurality of links (1001 to 1004) includes a second pair of links (1003, 1004) each pivotally connectable to the first provision (205a, 305a) of the second arm (205, 305) of each of the pair of knuckles (200, 300) on one end and pivotally connectable to the frame (2000) on another end. For instance, a link of the second pair of links (1003, 1004) is connectable to the first provision (205a, 305a) of the second arm (205, 305) of the first knuckle (200), while another link of the second pair of links (1003, 1004) is connectable to the first provision (205a, 305a) of the second arm (205, 305) of the second knuckle (300) as can be seen in Figure 2b. The second pair of links (1003, 1004) are defined by one of a cylindrical profile, a cuboidal profile, vertical plate, an inclined plate, and the like. In the illustrative embodiment, the second pair of links (1003, 1004) are depicted by cylindrical profile, where both ends of the second pair of links (1003, 1004) is pivotally coupled to the frame (2000) and the first provision (205a, 305a). In an embodiment, the second pair of links (1003, 1004) is configured to extend substantially normally to corresponding link of the first pair of links (1001, 1002). The second pair of links (1003, 1004) may extend substantially normal to corresponding link of the first pair of links (1001, 1002) in a range of 75 degrees to 105 degrees normally to the first arm (204, 304). In an embodiment, angle between the second pair of links (1003, 1004) and the first pair of links (1001, 1002) may be varied based on design requirements of the vehicle and the suspension assembly (1000). Such configuration of the second pair of links (1003, 1004) aids in pivotal movement of the plurality of wheels (2001) individually and avoids transmission of vibrations from the wheel towards the frame (2000) and the other wheel. Thefirst pair of links (1001, 1002) are configured to absorb vibrations and / or loads from the corresponding wheel where the first pair of links (1001, 1002) are configured to pivot relative to the first knuckle (200) and the second knuckle (300) as both ends are pivotally coupled to the frame (2000) and the pair of knuckles (200, 300) as can be seen in Figure la. Such configuration of the first pair of links (1001, 1002) and the second pair of links (1003, 1004) aids in precise control of wheel movement and enhances stability of the vehicle. In an embodiment, the suspension assembly (1000) includes a plurality of bushes (1008) configured to pivotally couple the leaf spring (100), the second pair of links (1003, 1004) and the damping member (1005). The plurality of bushes (1008) are configured to aid in pivotal movement of the second pair of links (1003, 1004), the leaf spring (100) and one end of the first pair of link.

[0050] Figure 3a is an exploded view of the suspension assembly (1000) depicting a third pair of links (1011, 1012). Figure 3b is a perspective view of the suspension assembly (1000) depicting the third pair of links (1011, 1012). Figure 3c is another perspective view of the suspension assembly (1000) depicting the third pair of links (1011, 1012). Referring now to Figures 3a to 3c, the suspension assembly (1000) includes a third pair of links (1011, 1012) pivotally connectable to at least one side of the first arm (204, 304) on one end and pivotally connectable to the frame (2000) and extending parallel to the second pair of links (1003, 1004). The third pair of links (1011, 1012) are configured to resemble the second pair of links (1003, 1004) and are coupled to the pair of knuckles (200, 300) parallel to the second pair of links (1003, 1004). The third pair of links (1011, 1012) is mounted pivotally on either ends by a plurality of bushes (1008) to the pair of knuckles (200, 300) and the frame (2000) to aid in pivotal movement of the pair of knuckles (200, 300) relative to the frame (2000) when the plurality of wheels (2001) are displaced relative to the frame (2000). The third pair of links (1011, 1012) are defined by one of a cylindrical profile, a cuboidal profile, vertical plate, an inclined plate, and the like. In the illustrative embodiment, the third pair of links (1011, 1012) are depicted by a cylindrical profile, where both ends of the second pair of links (1003, 1004) ispivotally coupled to the frame (2000) and the first provision (205a, 305a). In an embodiment, the third pair of links (1003, 1004) is configured to extend normally to corresponding link of the first pair of links (1001, 1002). Such configuration of the third pair of links (1011, 1012) and aids in pivotal movement of the plurality of wheels (2001) individually and avoids transmission of vibrations from the wheel towards the frame (2000) and the other wheel. The third pair of links (1011, 1012) provide additional stability to the vehicle.EQUIVALENTSWith respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and / or “an” should typically beinterpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are notintended to be limiting, with the true scope and spirit being indicated by the following claims.Referral Numeral:

Claims

We claim:

1. A suspension assembly (1000) for a vehicle, comprising:a leaf spring (100) connectable to a frame (2000) of the vehicle; a pair of knuckles (200, 300) connectable to each end of the leaf spring (100), wherein each knuckle of the pair of knuckles (200, 300) comprises:a base (201, 301) defining an outer portion (202, 302) and an inner portion (203, 303), wherein the outer portion (202, 302) is configured to receive a portion of a wheel hub of the vehicle, wherein the base (201, 301) is defined with a first end (201a, 301a) and a second end (201b, 301b) opposite to the first end (201a, 301a);a first arm (204, 304) extending normally away from the base (201, 301) on the inner portion (203, 303), the first arm (204, 304) being defined at the first end (201a, 301a) of the base (201, 301); a second arm (205, 305) extending diagonally away from the second end (201b, 301b) of the base (201, 301), the second arm (205, 305) being defined with a first provision (205a, 305a); and an intermediate arm (206, 306) extending normally from the base (201, 301) between the first end (201a, 301a), wherein the leaf spring (100) is pivotally connectable between the first arm (204, 304) and the intermediate arm (206, 306) and at least a portion of the intermediate arm (206, 306) extends in a direction normal to the first arm (204, 304); anda plurality of links (1001 to 1004) each connectable to a portion of the pair of knuckles (200, 300) on one end and connectable to the frame (2000) on another end.

2. The suspension assembly (1000) as claimed in claim 1, wherein the plurality of links (1001 to 1004) comprises:a first pair of links (1001, 1002) each connectable to a portion of the first arm (204, 304) of each of the pair of knuckles (200, 300) on one end and pivotally connectable to the frame (2000) on another end; anda second pair of links (1003, 1004) each pivotally connectable to the first provision (205a, 305a) of the second arm (205, 305) of each of the pair of knuckles (200, 300) on one end and pivotally connectable to the frame (2000) on another end.

3. The suspension assembly (1000) as claimed in claim 1, wherein the leaf spring (100) is a single leaf spring (100).

4. The suspension assembly (1000) as claimed in claim 2, wherein the second pair of links (1003, 1004) being configured to extend normally to corresponding link of the first pair of links (1001, 1002).

5. The suspension assembly (1000) as claimed in claim 1, wherein the intermediate arm (206, 306) is defined with a second provision (206a, 306a) to receive a portion of a damping member (1005) of the suspension assembly (1000).

6. The suspension assembly (1000) as claimed in claim 1, comprises at least one elastic member (1006) mounted on a central portion of the leaf spring (100) on either sides.

7. The suspension assembly (1000) as claimed in claim 5, comprises a bracket (1007) mounted on the at least one elastic member (1006) to connect the leaf spring (100) to the frame (2000) of the vehicle.

8. The suspension assembly (1000) as claimed in claim 4, comprises a plurality of bushes (1008) configured to pivotally couple the leaf spring (100), the second pair of links (1003, 1004) and the damping member (1005).

9. The suspension assembly (1000) as claimed in claim 1, wherein the base (201, 301) is defined with a flange (1009) at the first end (201a, 301a) perpendicular to the first arm (204, 304) to rigidly couple corresponding link of the first pair of links (1001, 1002).

10. The suspension assembly (1000) as claimed in claim 1, wherein the base (201, 301) is defined with a cavity (1010) between the first arm (204, 304) and the intermediate arm (206, 306) to receive the wheel hub.

11. The suspension assembly (1000) as claimed in claim 2, comprises a third pair of links (1011, 1012) pivotally connectable to at least one side of the first arm (204, 304) on one end and pivotally connectable to the frame (2000) and extending parallel to the second pair of links (1003, 1004).Dated this 24thday of February 2025NIKHIL SRINIVASA REDDY OF K&S PARTNERS AGENT OF THE APPLICANT(S)IN / PA- 2127 -Digitally signed and filed through E-filing

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