WO2022219651A1 - Conception de châssis commune pour variantes de deux-roues - Google Patents

Conception de châssis commune pour variantes de deux-roues Download PDF

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Publication number
WO2022219651A1
WO2022219651A1 PCT/IN2022/050361 IN2022050361W WO2022219651A1 WO 2022219651 A1 WO2022219651 A1 WO 2022219651A1 IN 2022050361 W IN2022050361 W IN 2022050361W WO 2022219651 A1 WO2022219651 A1 WO 2022219651A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheeler
downtube
common chassis
variants
chassis
Prior art date
Application number
PCT/IN2022/050361
Other languages
English (en)
Inventor
Vilas Tank
Original Assignee
Aventose Energy Private Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aventose Energy Private Limited filed Critical Aventose Energy Private Limited
Publication of WO2022219651A1 publication Critical patent/WO2022219651A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02—Frames
    • B62K11/04—Frames characterised by the engine being between front and rear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J43/00—Arrangements of batteries
    • B62J43/10—Arrangements of batteries for propulsion
    • B62J43/16—Arrangements of batteries for propulsion on motorcycles or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J43/00—Arrangements of batteries
    • B62J43/20—Arrangements of batteries characterised by the mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K13/00—Cycles convertible to, or transformable into, other types of cycles or land vehicle
    • B62K13/08—Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/18—Joints between frame members
    • B62K19/28—Means for strengthening joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
    • B62M7/04—Motorcycles characterised by position of motor or engine with engine between front and rear wheels below the frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2202/00—Motorised scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2204/00—Adaptations for driving cycles by electric motor

Definitions

  • the present invention relates to a common chassis design, and more particularly, to a common chassis design for variants of electric two - wheelers which can be adapted to fit different segments of electric two-wheelers.
  • a chassis is the main support structure of the vehicle which is also known as 'Frame'.
  • the chassis bears all stresses on the vehicle in both static and dynamic conditions. In a vehicle, it is analogous to the skeleton in living organisms.
  • the chassis holds different parts and components of the vehicle, such as the engine, suspension, wheels, fuel tank, handlebars, seat, motor, and the like, in a manner similar to the skeleton holding different organs in a living organism.
  • the chassis or frame is crucial for the construction of the vehicle and the protection of integrated parts in the vehicle. One of the most important factors in the handling of the vehicle is the strength and rigidity of the chassis or frame.
  • the chassis of a two-wheeler vehicle is a structural component of the two- wheeler vehicle linking various components of the two-wheeler vehicle systems and providing the vehicle rigidity and strength while the vehicle runs in various road conditions.
  • a two-wheeler vehicle’s chassis provides a balance between stiffness and controlled flex, to provide the optimum ride and handling.
  • the chassis facilitates the placement of the motor or engine in a way that allows adhering to the basic principles of mass centralization. According to the basic principles of mass centralization, the two- wheeler vehicle’s mass is placed as centrally as possible between the front and the rear wheels and is also placed as low as possible, without compromising ground clearance. Further, the chassis facilitates the mounting of suspension components in a way that allows the components to work in an efficient manner.
  • chassis types being used by two-wheeler motor vehicles.
  • Some of the popular types of chassis in use for two-wheeler motor vehicles are single or twin downtube cradle-type chassis, steel tube perimeter chassis, aluminium twin-spar chassis, steel tube trellis chassis, hybrid chassis (steel tube trellis section combined with aluminium side plates) and aluminium or carbon fibre monocoque chassis.
  • An effective mechanical design of the chassis of the electric two-wheeler motor vehicle needs to be economical and safe to withstand all the loads and impacts while the electric two-wheeler motor vehicle is running on the road.
  • US application US20090194957 discloses multifunctional transport frame for the convertible assembly of various child transport devices or vehicles wherein the disclosed frame permits the production and operation of the series of vehicles used by children of the western world: pram, pushchair, walking learning aid, three-wheeler, go-kart and additional corresponding trailer or hand carts as a modular system.
  • Essential components of said transport frame are of multiple or universal application.
  • the chassis for a child vehicle having wheels and being convertible into various embodiments, wherein the chassis has a modular basic construction and comprises: a chassis telescopic extension, a spring bracket fastened to the chassis telescopic extension, two rear wheels, and a multifunction bracket that may be fixed in various positions, the multifunction bracket being adjustable by pivoting and in length on the chassis telescopic extension.
  • WO1998046471A1 discloses a vehicle chassis and body construction comprising of chassis (5) and body panel (7) structural systems for a wide variety of vehicles, including automotive, water vessels, aircraft and human powered vehicles, principally comprising a node (9) and interlocking spaceframe system that can be hand assembled in the field.
  • the invention also comprises a key (6) and lock system (2) for wedgingly interlocking body panels (7) to the spaceframe. Together these systems comprise novel Frame Integration Technology (FIT) of the invention.
  • FIT Frame Integration Technology
  • Examples of vehicles includes autos, utility vehicles (trucks), public transport vehicles, light boats, human powered vehicles such as bicycles, pedicabs and the like, and light aircraft.
  • W02003091089A1 discloses a motorized two wheeler where the disposition of frame members, platform shape, fuel tank, engine gear box and the engine cylinder head are optimised to achieve a combination of large wheels and large, flat, wide storage platform between the rider and the front suspension.
  • the invention relates to motorized two wheelers with large wheels and a wide storage platform between the front suspension and the rider's seat, comprising of longitudinally spaced large sized front and rear wheels; a frame body supported by said wheels including a front support; at least one tubular frame member downwardly and rearwardly disposed from said front suspension; said tubular frame member adapted to support thereon a substantially flat wide open storage platform along its entire length; wherein an engine, gear box ,fuel tank , and operating components with or without other accessories arranged and secured with respect to atleast one of said frame body.
  • chassis and frames of two-wheelers have their limitations as their designs are restricted to one particular segment of the vehicle, and they are not versatile.
  • the systems disclosed in prior art relate to multi-functional frames of the two and three- wheelers, the frames and chassis of the prior art only disclose the assembling of various parts of the chassis which are joined together to result in the desired two-wheeler variant, and they are further unlocked and reassembled to form another design of a two-wheeler variant. They do not propose a single design which has versatile functionalities of converting into different segments of the two-wheeler without reassembling of the chassis.
  • the prior art mainly relate to increasing the space between the rider and the front suspension thereby enabling wide storage platform and further rearranging chassis or frame of the vehicles to increase the load bearing capacity of the vehicle.
  • chassis must be redesigned for each segment of two - wheeler vehicle, such as motor bike, scooter, cargo, moped, and the like. This significantly increases the cost of fabrication and setting up of assembly lines with respect to each chassis design. Further, there exists scope of bringing some modularity in the design of the chassis of the electric two-wheeler motor vehicle so that the chassis becomes adaptable for different segments of the electric two-wheeler vehicle.
  • the present invention provides an efficient common chassis design suitable for various variants of an electric two-wheeler motor vehicle.
  • the common chassis design for two-wheeler variants comprises a pair of downpipes/ downtubes positioned parallelly.
  • An inner pipe is disposed between the first downtube and the second downtube to provide strength to the common chassis frame.
  • the common chassis design includes a seat support section in rear portion, which is formed by combining the rear ends of the first downtube and the second downtube.
  • the common chassis design also includes battery mounting section configured to house a battery.
  • the common chassis design further includes a motor mounting section configured to mount a motor behind the battery mounting section.
  • the main object of the present invention is to provide a common chassis design that is adaptable to be fitted in different variants of electric motor vehicle, such as two-wheeler cargo, scooter, motorcycle, and alike.
  • the primary object of the present invention is to provide a common chassis structure to enable mounting of one or more panels of different shapes and dimensions to obtain different variants of electric two-wheeler motor vehicles.
  • a common chassis design suitable for various variants of an electric two-wheeler motor vehicle is disclosed.
  • the common chassis design for two- wheeler variants includes a pair of downpipes/ downtubes positioned parallelly, with an inner downpipe positioned between the two main downpipes.
  • the front portions of the first downtube and the second downtube are coupled to a neck stem.
  • the first downtube, the second downtube of common chassis design are mechanically coupled via a plurality of horizontally placed bars for strength.
  • the first downtube and the second downtube are also provided with stiffener plates along the radius of the curve of the downtubes.
  • the common chassis design includes a seat support section in rear portion, which is formed by combining the rear ends of the first downtube and the second downtube.
  • the common chassis design also includes battery mounting section configured to house a battery.
  • the common chassis design further includes a motor mounting section configured to mount a motor behind the battery mounting section.
  • the common chassis design is also configured to mount one or more panels suitable to give shape to one of a motor bike, scooter, and two-wheeler cargo.
  • Fig.l illustrates a side view of an exemplary common chassis design, in accordance with the present invention.
  • Fig. 2 illustrates a perspective view of an exemplary common chassis design in accordance with the present invention.
  • Fig. 3 illustrates the common chassis design mounting panels in a two - wheeler motorbike in accordance with the present invention.
  • Fig. 4 illustrates the common chassis design mounting panels in a two - wheeler cargo in accordance with the present invention.
  • Fig. 5 illustrates the common chassis design mounting panels in a two - wheeler scooter in accordance with the present invention.
  • Fig. 6 illustrates the front view of the common chassis design in a two - wheeler vehicle in accordance with the present invention.
  • Fig. 7 illustrates the bottom view of the common chassis design in a two - wheeler vehicle in accordance with the present invention.
  • Fig. 8 illustrates the top view of the common chassis design in a two - wheeler vehicle in accordance with the present invention.
  • Fig. 9 illustrates the rear view of the common chassis design in a two - wheeler vehicle in accordance with the present invention.
  • the present invention as embodied by "A common chassis design for two-wheeler variants" succinctly fulfils the above-mentioned need(s) in the art.
  • the present invention has objective(s) arising as a result of the above-mentioned need(s), said objective(s) being enumerated below.
  • the objective(s) of the present invention are enumerated, it will be obvious to a person skilled in the art that, the enumerated objective(s) are not exhaustive of the present invention in its entirety, and are enclosed solely for the purpose of illustration.
  • the present invention encloses within its scope and purview, any structural alternative(s) and/or any functional equivalent(s) even though, such structural alternative(s) and/or any functional equivalent(s) are not mentioned explicitly herein or elsewhere, in the present disclosure.
  • the present invention therefore encompasses also, any improvisation(s)/ modification(s) applied to the structural alternative(s)/functional alternative(s) within its scope and purview.
  • the present invention may be embodied in other specific form(s) without departing from the spirit or essential attributes thereof.
  • Embodiments of the present disclosure provide a common chassis design.
  • a common chassis design is provided for electric two-wheeler motor vehicles.
  • the common chassis design is adaptable to be fitted in different variants of electric motor vehicle, such as two-wheeler cargo, scooter, motorcycle, and alike.
  • the common chassis design structure is configured to mount wheels of a predefined size which may suit all the different variants of the electric two-wheeler motor vehicle.
  • the common chassis design structure includes a battery mounting section having a predefined space suitable for mounting of a plurality of dimensions of batteries as required for different variants of the electric two-wheeler motor vehicle.
  • the common chassis design structure also comprises a motor mounting section having a predefined space to mount a plurality of dimensions of motors, as required for different variants of the electric two-wheeler motor vehicle. Further, the common chassis design structure is also configured to enable mounting of one or more panels of one or more shapes and one or more dimensions to obtain variants of electric two- wheeler motor vehicle, such as two-wheeler cargo, scooter, motor bike, and alike.
  • the common chassis design includes a pair of downpipes positioned parallelly along with an inner downtube that is attached to the first half of the chassis.
  • the front portions of the first downtube, the second downtube are coupled to a neck stem.
  • the first downtube, the second downtube and the inner downtube of the common chassis design are horizontally mechanically coupled via a plurality of bars for strength.
  • the first downtube and the second downtube are provided with stiffener plates.
  • the common chassis design includes a seat support section in rear portion, wherein the downtubes are welded at corners below the seat.
  • the common chassis design also includes battery mounting section configured to house a battery.
  • the common chassis design further includes a motor mounting section configured to mount a motor behind the battery mounting section.
  • a common chassis design (100) for electric motor vehicles is disclosed.
  • the common chassis design (100) includes a first downtube (102a) and a second downtube (102b) positioned parallel to each other, and an inner downtube (102c) is further provided between the first and second downtubes (102a, 102b).
  • the inner downtube (102c) is attached to the front half of the chassis.
  • the front portions of the first downtube (102a), and the second downtube (102b) are coupled to a neck stem (104).
  • the neck stem (104) is configured to mount a pair of parallel connecting rods (124).
  • the pair of parallel connecting rods (124) are configured to mount a front wheel (106a) at a bottom end and a handle (122) at a top end.
  • the first downtube (102a) and the second downtube (102b) of common chassis design (100) are mechanically coupled via a plurality of bars (116) horizontally placed for strength.
  • the first downtube (102a) and the second downtube (102b) are also provided with stiffeners plates (126) along the curved radius.
  • the common chassis design (100) includes a seat support section (106) in its rear portion, which is formed by welding the rear ends of the first downtube (102a) and the second downtube (102b) to the seat support section (106) .
  • the seat support section (106) comprises a pair of pivots (120) to mount a pair of suspensions (108) to the common chassis design (100) at a proximal end of the suspension (108).
  • a rear wheel (106b) is mounted with the pair of suspensions (108) at a pair of distal ends of the suspension (108).
  • front wheel (106a) and the rear wheel (106b) are alloy wheels of one or more diameters.
  • the seat support section (106) is semi-circular in shape.
  • the common chassis design (100) also includes battery mounting section (114) configured to house a battery (110).
  • the battery mounting section (114) configured to house and provide mounting support to one or more sizes of battery (110).
  • the common chassis design (100) further includes a motor mounting section (118) configured to mount a motor (112) behind the battery mounting section (114).
  • the motor mounting section (118) is configured to mount one or more sizes of the motor (112).
  • inner downtube (102c) is attached to the front half of the chassis to further improve the structural strength of the chassis and evenly balance and distribute the weight on the vehicle.
  • the common chassis design is configured to mount one or more panels (200) suitable to give shape to a motor bike, as shown in fig. 3.
  • the motor bike further includes bigger motor and high-power battery.
  • the common chassis design facilitates a large storage space in front of the motor bike and an ample seat space behind the biker for ergonomic sitting conditions for person riding on the motor bike.
  • the common chassis design is configured to mount one or more panels (300) suitable to give shape to a two-wheeler cargo, as shown in fig. 4.
  • the common chassis design facilitates a large flat loading bed behind the driver seat and an extended leg space in front of the driver seat to load packages and weights.
  • the common chassis design is configured to mount one or more panels (400) suitable to give shape to a scooter as shown in fig.5.
  • the common chassis design of the scooter facilitates a large leg space at a front of the scooter and an ample seat space at a low elevation behind the scooter-rider for a rider sitting behind the scooter-rider.
  • the above-mentioned common chassis design builds a plurality of two-wheeler variants, such as two-wheeler cargo, scooter, motorcycle, from common mechanical and electrical components of different dimensions.
  • the common chassis design reduces overall production cost for a plurality of variants of electric two-wheeler motor vehicle and provides flexibility in supply chain for the key components, such as battery and motor.
  • the common chassis design facilitates mounting of same components in a plurality of variants of electric two-wheeler motor vehicle resulting in less component types to be maintained.
  • the mounting of same components across variants increases component volumes and reduces overall cost and inventory requirements. Further, the mounting of same components reduces requirement of testing time in product development process. Therefore, time to manufacture different variants of the electric two-wheeler motor vehicle, number of suppliers for the supply of components in production process and overall supply chain cost also reduces significantly.
  • the common chassis design (100) of the present invention comprises a seat support section (106) in its rear portion, which is formed by combining the rear ends of the first downtube (102a) and the second downtube (102b).
  • An inner downtube (102c) is further provided between the first and second downtubes (102a, 102b).
  • the seat support section (106) comprises a pair of pivots (120) to mount a pair of suspensions (108) to the common chassis design (100) at a proximal end of the suspension (120).
  • a rear wheel (106b) is mounted with the pair of suspensions (108) at a pair of distal ends of the suspension (108).
  • the front wheel (106a) and the rear wheel (106b) in a preferred embodiment are alloy wheels of one or more diameters.
  • the common chassis design (100) is also provided with a battery mounting section (114) configured to house a battery (110).
  • the battery mounting section (114) configured to house and provide mounting support to one or more sizes of battery (110).
  • the common chassis design (100) further includes a motor mounting section (118) configured to mount a motor (112) behind the battery mounting section (118).
  • the motor mounting section (118) is configured to mount one or more sizes of the motor (112).
  • the common chassis design configured to mount one or more panels (200) suitable to give shape to a motor bike.
  • the common chassis design configured to mount one or more panels (300) suitable to give shape to a two-wheeler cargo.
  • the common chassis design is configured to mount one or more panels (400) suitable to give shape to a scooter.
  • the common chassis design is adaptable to be fitted in different variants of electric motor vehicle, such as two-wheeler cargo, scooter, motorcycle, and alike.
  • the strength of the chassis is improved by providing multiple downtubes along the length of the chassis structure.
  • Battery mounting section (114) comprises of a single curved pipe for the ease of manufacturing, wherein the height of the pipe is reduced when compared to the seat support section (106), to lower the seat height that ensures comfortable seating for the user.
  • the common chassis design facilitates a large storage space at the front of the motor bike and an ample seat space behind the biker.
  • the common chassis design facilitates a large flat loading bed behind the driver seat and an extended leg space in front of the driver seat to load packages and weights.
  • the common chassis design reduces overall production cost for a plurality of variants of electric two-wheeler motor vehicle and provides flexibility in supply chain for the key components, such as battery and motor.
  • the common chassis design facilitates mounting of same components in a plurality of variants of electric two-wheeler motor vehicle thus resulting in less component types to be maintained.
  • FCEV hydrogen fuel cell-powered electric vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne une conception de châssis commune (100) pour véhicules à moteur électriques. La conception de châssis commune comprend un premier tube diagonal (102a) et un deuxième tube diagonal (102b) positionnés parallèles l'un à l'autre. Un tube diagonal interne (102c) est positionné entre les premier et deuxième tubes diagonaux (102a, 102b). Les parties avant du premier tube diagonal (102a) et du deuxième tube diagonal (102b) sont couplées à une tige de collet (104). Le premier tube diagonal (102a) et le deuxième tube diagonal (102b) sont couplés horizontalement par l'intermédiaire d'une pluralité de barres (116) et de raidisseurs plaques parallèles (126). La conception de châssis commune (100) comprend en outre une partie de support de siège (106) dans la partie arrière, une partie de montage de batterie (114) et une partie de montage de moteur (118). La présente invention facilite le montage des mêmes composants dans une pluralité de variantes de deux-roues électriques, ce qui permet d'avoir à entretenir moins de types de composants. Le montage des mêmes composants sur des variantes permet d'augmenter les volumes de composants et de réduire ainsi le coût global et les exigences en matière d'inventaire.
PCT/IN2022/050361 2021-04-16 2022-04-15 Conception de châssis commune pour variantes de deux-roues WO2022219651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202141017815 2021-04-16
IN202141017815 2021-04-16

Publications (1)

Publication Number Publication Date
WO2022219651A1 true WO2022219651A1 (fr) 2022-10-20

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206278202U (zh) * 2016-12-06 2017-06-27 台州市佑吉车业科技有限公司 电动车车架
CN210212632U (zh) * 2019-06-13 2020-03-31 天津摩岩创意科技有限公司 一种高避震性能的电动车车架
IN202141005004A (fr) * 2021-02-05 2021-02-12 Oben Electric Vehicles Private Limited

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206278202U (zh) * 2016-12-06 2017-06-27 台州市佑吉车业科技有限公司 电动车车架
CN210212632U (zh) * 2019-06-13 2020-03-31 天津摩岩创意科技有限公司 一种高避震性能的电动车车架
IN202141005004A (fr) * 2021-02-05 2021-02-12 Oben Electric Vehicles Private Limited

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