DESC:COMPACT CONTINUOUS VARIABLE TRANSMISSION SYSTEM FOR ELECTRIC VEHICLE
CROSS REFERENCE TO RELATED APPLICTIONS
The present application claims priority from Indian Provisional Patent Application No. 202321012245 filed on 23-02-2023, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD
The present disclosure generally relates to transmission arrangements for electric vehicles. Particularly, the present disclosure relates to a transmission arrangement incorporating a cylindrical housing and a gearbox for providing multiple rotational outputs.
BACKGROUND
The development of electric vehicles has been influenced by advances in transmission arrangements. These systems are crucial for translating electrical energy into mechanical energy in an efficient manner. Traditional transmission arrangements have faced several challenges in terms of efficiency, adaptability, and scalability, especially when applied to electric vehicles that demand versatile performance under varying conditions.
One common approach involves the use of fixed-gear ratios. These systems are simple but do not offer the flexibility required for optimal performance across different driving scenarios. Another approach involves continuously variable transmissions (CVT) that offer variable gear ratios but suffer from efficiency losses and durability concerns.
Further, transmission arrangements incorporating multiple gears and complex shifting mechanisms have been developed. However, these systems tend to be bulky, complicated, and expensive to manufacture. Moreover, they may not provide the desired level of efficiency or adaptability needed for electric vehicles, which require precise control over power and speed.
Furthermore, electric vehicles benefit significantly from transmission arrangements that can provide multiple output speeds and torques without sacrificing efficiency or performance. The need for systems that can seamlessly adapt to different driving conditions while maintaining a compact and efficient design is evident. Traditional systems often fail to meet these requirements due to their inherent limitations in design and operation.
In light of the above discussion, there exists an urgent need for solutions that overcome the problems associated with conventional systems and techniques for providing efficient, adaptable, and scalable transmission in electric vehicles.
SUMMARY
An object of the present disclosure is to provide a transmission arrangement for an electric vehicle with improved efficiency and adaptability to different driving conditions.
In accordance with the first aspect of the present disclosure, there is provided a transmission arrangement for an electric vehicle. The transmission arrangement comprises a cylindrical housing with multiple gear teeth circumferentially disposed on an inner surface and a gearbox received within the housing. The gearbox includes a central gear rotationally located at the centre to receive rotational input, a carriage disposed coaxially with the central gear and multiple orbit gears disposed on the carriage. Each orbit gear simultaneously engages with the central gear and the gear teeth of the cylindrical housing. Additionally, a shifter selectively engages the central gear to provide a first rotational output and the carriage to provide a second rotational output. Such a configuration enables varied power delivery options and improves adaptability to various driving conditions for the vehicle.
The disclosed transmission arrangement for electric vehicles provides increased efficiency and adaptability. The arrangement enables precise control over output rotation, enhancing vehicle performance across different speeds and terrains. Furthermore, the transmission arrangement is advantageous due to its compact design and efficient power transmission, contributing to the overall performance and efficiency of electric vehicles. Moreover, the selective engagement of the shifter with either the central gear or the carriage optimizes power delivery, improving acceleration and driving dynamics. Additionally, the integration of the gearbox with the shifter ensures a versatile and continuous power transmission, reducing mechanical losses and enhancing the driving experience.
Additional aspects, advantages, features and objects of the present disclosure would be made apparent from the drawings and the detailed description of the illustrative embodiments constructed in conjunction with the appended claims that follow.
It will be appreciated that features of the present disclosure are susceptible to being combined in various combinations without departing from the scope of the present disclosure as defined by the appended claims.
BRIEF DESCRIPTION OF DRAWINGS
The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.
Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:
FIG. 1 illustrates a schematic view of a transmission arrangement, in accordance with an embodiment of the present disclosure.
FIG. 2 illustrates another schematic view of the transmission arrangement, in accordance with an embodiment of the present disclosure.
In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the non-underlined number to the item. When a number is non-underlined and accompanied by an associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.
DETAILED DESCRIPTION
The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognise that other embodiments for carrying out or practising the present disclosure are also possible.
The description set forth below in connection with the appended drawings is intended as a description of certain embodiments of a transmission arrangement for an electric vehicle and is not intended to represent the only forms that may be developed or utilised. The description sets forth the various structures and/or functions in connection with the illustrated embodiments; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimised to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, 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 alternatives falling within the scope of the disclosure.
The terms “comprise”, “comprises”, “comprising”, “include(s)”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, system that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or system. In other words, one or more elements in a system or apparatus preceded by “comprises... a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings and which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
The present disclosure will be described herein below with reference to the accompanying drawings. In the following description, well known functions or constructions are not described in detail since they would obscure the description with unnecessary detail.
As used herein, the term “electric vehicle” refers to a mode of transportation powered primarily by electrical energy stored in rechargeable batteries or other energy storage devices. Generally, conventional vehicles rely on petroleum or diesel. However, electric vehicles operate on electric motors, offering a cleaner alternative as such vehicles emit no tailpipe pollutants. The term “electric vehicles” encompasses a wide range of vehicles including, but not limited to, passenger cars, scooters, buses, and trucks, each selected with different capacities and purposes to suit various consumer needs.
As used herein, the term “transmission arrangement” refers to a configuration or setup within an electric vehicle selected to transfer mechanical power from the motor to the wheels, enabling the vehicle to move forward or backward. This arrangement is crucial in determining the efficiency, speed, and torque of the vehicle, as it dictates how power is distributed and utilized during operation. The transmission arrangement includes various components such as housings, gears, bearings and shifting mechanisms. Each component plays an important role in the smooth transition of power. Furthermore, the design and implementation of the transmission arrangement affects the overall performance and fuel efficiency of the electric vehicle. Therefore, an optimized transmission arrangement is important for enhancing the driving experience and operational capabilities of electric vehicles.
As used herein, the term “cylindrical housing” denotes a tubular structure or enclosure within a transmission arrangement that serves to protect and house various mechanical components, such as gears and bearings. This housing is typically made from durable materials capable of withstanding high pressures and temperatures, ensuring the safety and longevity of the contained parts. The internal surface of the cylindrical housing plays an important role in the proper engagement and functioning of the transmission arrangement. Additionally, the design and material selection for the cylindrical housing are critical for minimizing noise, vibration, and harshness (NVH) levels, thereby contributing to a smoother and quieter operation of the electric vehicle.
As used herein, the term “gear teeth” refers to the individual protrusions along the edge or surface of a gear within a transmission arrangement. These teeth are precisely shaped and spaced to ensure seamless engagement with adjacent gears, transferring force and motion in a highly efficient and effective manner. The design and configuration of gear teeth are essential in determining the performance and the gear teeth influence factors such as torque transmission, gear ratios and operational smoothness. Furthermore, the wear resistance and strength of the gear teeth are important for the durability and reliability of the transmission arrangement as such factors impact the maintenance requirements and lifespan of the vehicle.
As used herein, the term “gearbox” denotes a component within the transmission arrangement that houses the gears and enables the transmission of power from the motor to the drive wheels. The gearbox enables to adjust the torque and speed of the vehicle through the selection of different gear ratios, thereby allowing the vehicle to operate efficiently across a range of speeds and conditions. The construction of the gearbox ensures that it can withstand the forces exerted during operation, while also being compact enough to fit within the design constraints of the vehicle. Additionally, gearboxes incorporate advanced materials and technologies to reduce weight, increase efficiency and improve the overall performance of the electric vehicle.
As used herein, the term “central gear” refers to a main gear within the gearbox that is located centrally and receives the initial rotational input from the motor. The central gear is responsible for transmitting the rotational force to other gears within the transmission arrangement, thereby providing the output speed and torque. The size, shape and tooth configuration of the central gear are selected to ensure optimal interaction with other gears, contributing to the overall efficiency and responsiveness of the transmission arrangement. The durability and precision of the central gear are also vital for maintaining the performance and reliability of the transmission arrangement over usage cycles.
As used herein, the term “rotational input” describes the turning force or movement provided to the transmission arrangement that originates from the motor. This input is the primary source of power for the transmission arrangement as the movement initiates the process of power conversion and distribution within the transmission arrangement. The quality and consistency of the rotational input directly affect the smoothness and efficiency of the power transfer. Further, effective handling of the rotational input ensures that the electric vehicle can achieve optimal performance with smooth acceleration and deceleration under varying driving conditions.
As used herein, the term “carriage” denotes a component of the gearbox that supports and aligns other components, such as orbit gears, ensuring their correct positioning and function within the transmission arrangement. The carriage is important for maintaining the structural integrity and operational accuracy of the gearbox as it holds the orbit gears in place and allows them to engage properly with the central gear and cylindrical housing. The design and material of the carriage are selected to withstand the mechanical stresses and strains encountered during vehicle operation, contributing to the durability and reliability of the transmission arrangement. Additionally, the carriage enables the efficient transfer of rotational forces, enhancing the handling and performance of the vehicle.
As used herein, the term “orbit gears” refers to a set of gears within the transmission arrangement that rotate around the central gear, thereby receiving and transmitting rotational input to achieve desired changes in speed and torque. These gears are selected to mesh seamlessly with the central gear and the gear teeth of the cylindrical housing, enabling a wide range of gear ratios and output speeds. The precise alignment and smooth operation of the orbit gears are essential for the effective functioning of the transmission arrangement to ensure that the electric vehicle can easily adapt to different driving conditions. The orbit gears are manufactured to minimize wear and noise, thereby extending the lifespan of the transmission arrangement and improving the driving experience.
As used herein, the term “shifter” denotes a mechanism within the transmission arrangement that allows for the selective engagement and disengagement of gears, thereby altering the transmission ratio and the rotational output delivered to the wheels. The shifter is an essential component that provides the driver with control of the speed and acceleration of the vehicle, enabling manual or automatic selection of the appropriate gear based on driving conditions. The operation of the shifter is critical for ensuring smooth and responsive gear changes, contributing to the safety and comfort of the driving experience. Additionally, the shifter is selected to be compact, efficient and user-friendly, further enhancing the performance of the electric vehicle and driving experience for the driver.
As used herein, the term “rotational output” refers to the torque and speed resulting from the operation of the transmission arrangement as modified by the engaged gears and transmitted to the drive mechanism of the electric vehicle. The rotational output is an important factor that determines the performance of the vehicle, affecting its acceleration, top speed and ability to climb inclines. The transmission arrangement is selected to optimize this output, ensuring that the electric vehicle operates efficiently under various conditions. The ability to adjust the rotational output is fundamental to meeting the needs and preferences of the driver while also maximizing the energy efficiency and extending the range of operation of the vehicle.
Figure 1, in accordance with an embodiment describes a schematic view of a transmission arrangement 100. The transmission arrangement 100 is enables to enhance efficiency and reliability in power transmission within drivetrain systems of electric vehicles. The transmission arrangement 100 comprises a cylindrical housing 102. The cylindrical housing 102 is integral to structural integrity and functional efficacy of the transmission arrangement 100. The cylindrical housing 102 comprises multiple gear teeth 104 that are circumferentially disposed on an inner surface thereof. The arrangement of the gear teeth 104 allows for effective engagement with corresponding gears, thereby facilitating smooth transmission of rotational motion. The cylindrical housing 102 ensures proper alignment and support for internal components, thus contributing to the overall robustness and durability of the transmission arrangement. Additionally, the circumferential disposition of the gear teeth 104 enables uniform distribution of load and reduces wear and tear, thereby enhancing longevity of the transmission arrangement 100. In an example, the cylindrical housing 102 is fabricated high-strength materials such as steel or aluminium alloys to withstand operational stresses and thermal expansion. In an embodiment, the inner surface of the cylindrical housing 102 is treated or coated to reduce friction and wear.
The cylindrical housing 102 houses a gearbox 106. This gearbox 106 comprises a central gear 108 that is rotationally located at a centre of the gearbox 106 and enables the transmission of rotational input from a power source of the electric vehicle (such as a motor). The rotational positioning of the central gear 108 allows direct and efficient transfer of power to various components of the gearbox 106. The incorporation of the gearbox 106 within the cylindrical housing 102 enables enhanced transmission efficiency, reduced mechanical losses, and improved responsiveness of the vehicle. In an example, the gearbox 106 comprises modular components for ease of maintenance and replacement. In an embodiment, the gearbox 106 incorporates advanced materials or coatings to minimize noise and vibration during operation.
The central gear 108 receives the rotational input that is subsequently distributed to other parts of the transmission arrangement 100. The central gear 108 enables the conversion of electrical energy into mechanical energy, allowing the electric vehicle to move. The central gear 108 provides a reliable and consistent transfer of power, thereby ensuring the smooth operation of the vehicle. In an example, the central gear 108 is fabricated with a specific tooth profile to optimize engagement and minimize power loss. In an embodiment, the central gear 108 is fabricated from composite materials to reduce weight and improve efficiency.
The transmission arrangement 100 comprises a carriage 110 disposed coaxially with the central gear 108 and multiple orbit gears 112 rotationally disposed on the carriage 110. Further, each orbit gear 112 engages simultaneously with the central gear 108 and the gear teeth 104 of the cylindrical housing 102. Such a setup allows for the distribution of rotational input to different outputs, enabling adaptation to various driving conditions and requirements. The configuration of the carriage 110 and orbit gears provide the ability to alter transmission ratios based on driving conditions, leading to improved vehicle acceleration, fuel efficiency and overall performance. In an example, the carriage 110 is designed to enable easy mounting and dismounting of the orbit gears 112 for maintenance or replacement. In an embodiment, the orbit gears 112 incorporate a locking mechanism to secure a position of each orbit gear 112 on the carriage 110 during operation.
Figure 2, in accordance with an embodiment describes another schematic view of the transmission arrangement 100. The transmission arrangement 100 comprises the shifter 114 that selectively engages the central gear 108 to provide a first rotational output and the carriage 110 to provide a second rotational output. This selective engagement allows for the modification of output speeds and torques according to the needs of the electric vehicle under different operational scenarios. As shown, the shifter 112 has been moved to engage the carriage 110 instead of the central gear 108. The shifter 114 enables the driver to control the speed and torque output of the vehicle more precisely, thereby enhancing driving experience and safety. In an example, the shifter 114 is electronically controlled for smoother and more precise shifting. In an embodiment, the shifter 114 is linked to a vehicle control unit (VCU) of the vehicle to automate gear shifting based on real-time driving conditions and vehicle performance data.
In an embodiment, the multiple gear teeth 104 are disposed along a fixed length on the inner surface of the cylindrical housing 102. This specific arrangement of the gear teeth 104 enables precise and stable engagement with corresponding gears, thereby enhancing the transmission of rotational motion. Further, by limiting the gear teeth 104 to the fixed length, the design contributes to a more controlled and uniform load distribution across the engagement surface. Such a configuration reduces uneven wear and extends the service life of the transmission arrangement 100. In an example, the fixed length along which the gear teeth 104 are disposed is selected to match the operational requirements of the electric vehicle, optimizing performance and durability. In an embodiment, the specific section of the cylindrical housing 102 comprising the gear teeth 104 is reinforced to withstand higher operational stresses and enhance reliability.
In another embodiment, the carriage 110 comprises multiple hubs. Further, an orbit gear 112 of the multiple orbit gears 112 is individually disposed rotationally on a hub of the multiple hubs. This configuration allows each orbit gear 112 to rotate independently, providing flexibility and adaptability in a response of the the transmission arrangement 100 to varying operational conditions. The presence of the multiple hubs enables the distribution of load and reduces the risk of mechanical failure, thereby improving the overall efficiency and longevity of the transmission arrangement 100. In an example, the multiple hubs are designed to accommodate varying sizes and types of orbit gears 112, allowing for customizable transmission setups based on specific vehicle requirements. In an embodiment, the carriage 110 and the multiple hubs are constructed from advanced materials to reduce weight without compromising strength or durability.
In an embodiment, each hub of the multiple hubs comprises a bearing mechanism. The incorporation of the bearing mechanism to each hub enhances the rotational efficiency and stability of each orbit gear 112 mounted on the hubs. The bearing mechanisms reduce friction and wear, facilitating smoother and more reliable operation of the orbit gears 112. The bearing mechanisms provides improved transmission performance and reduced maintenance requirements. In an example, each bearing mechanism is selected based on the operational demands faced by the orbit gears 112, ensuring optimal performance under a wide range of conditions. In an embodiment, the bearing mechanisms are designed for easy replacement and maintenance to ensure long-term functionality and efficiency of the transmission arrangement 100.
In another embodiment, the shifter 114 is connected to a vehicle control unit (VCU) associated with the electric vehicle. Such an integration allows for automated control and synchronization between the shifter 114 and the VCU, enhancing the responsiveness and efficiency of gear changes. The connection to the VCU further enables real-time adjustments to the transmission based on various driving conditions and requirements, improving the performance of the vehicle and driver experience. In an example, the VCU can automatically adjust the transmission settings for optimal efficiency based on factors such as speed, load and terrain. In an embodiment, the shifter 114 can also receive manual inputs from the driver, allowing for a combination of automatic and manual control over the transmission arrangement 100.
In an embodiment, the transmission arrangement 100 comprises a torque converter. The inclusion of the torque converter allows for smoother transition between gears and provides a buffer between the engine and the transmission arrangement 100, reducing mechanical stress and enhancing operational smoothness of the vehicle. The torque converter aids in amplifying the torque, providing better acceleration and improved vehicle control. In an example, the torque converter is designed to match power characteristics of the vehicle, optimizing the transfer of power and improving fuel efficiency. In an embodiment, the torque converter comprises lock-up mechanisms to reduce energy loss at higher speeds, further enhancing the efficiency and performance of the electric vehicle.
In another embodiment, the shifter 114 comprises a mechanical linkage that enables the selective engagement of the central gear 108 and the carriage 110. The mechanical linkage provides a direct and tactile connection between the driver and the transmission arrangement 100, allowing precise control over the selection of gears. The presence of the mechanical linkage contributes to a more engaging driving experience and allows for quicker response times in gear selection. In an example, the mechanical linkage is selected for ergonomic ease and durability, ensuring consistent and reliable operation. In an embodiment, the mechanical linkage is adjustable to suit the preferences and requirements of different drivers, enhancing the versatility and user-friendliness of the transmission arrangement.
In an embodiment, the transmission arrangement 100 comprises a lubrication mechanism designed to distribute lubricant along critical engagement points. These points comprise the engagement of the central gear 108 with the multiple orbit gears 112 and the engagement of each orbit gear 112 with the multiple gear teeth 104 of the cylindrical housing 102. The lubrication mechanism ensures consistent and efficient lubrication, reducing friction and wear at the aforesaid interaction points, resulting in smoother operation, reduced heat generation and extended lifespan of the transmission components. In an example, the lubrication mechanism is equipped with sensors to monitor lubricant levels and distribution, ensuring optimal performance at all times. In an embodiment, the lubrication system is designed for easy maintenance and refill, enhancing user-friendliness of the transmission arrangement 100.
In another embodiment, the shifter 114 is connected to either a hydraulic actuation mechanism or a pneumatic actuation mechanism. Such a connection allows for smoother and more precise control over the gear shifting process, providing a more responsive and efficient transmission arrangement. The use of hydraulic or pneumatic actuation reduces the physical effort required for shifting, enhancing the comfort and ease of driving. In an example, the actuation mechanism is calibrated to match the specific shifting dynamics of the electric vehicle, ensuring seamless gear transitions. In an embodiment, the actuation mechanism comprises settings for adjusting the actuation pressure or force, allowing customization according to driver preference or driving conditions.
In an embodiment, the transmission arrangement 100 comprises a cooling mechanism. The cooling mechanism enables to maintain optimal operating temperatures within the transmission arrangement 100, such as during high-load conditions or in hotter climates. Further, the cooling mechanism enables to effectively dissipate heat, thereby helping to prevent overheating, preserving the integrity of transmission components and ensuring consistent performance. In an example, the cooling mechanism comprises a combination of passive and active cooling elements, such as heat exchangers and coolant fluids. Such cooling elements are selected for the unique thermal characteristics of electric vehicle transmissions. In an embodiment, the cooling system is integrated into a thermal management system of the vehicle to optimize efficiency and reduce energy consumption.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms “disposed,” “mounted,” and “connected” are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected, either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Modifications to embodiments and combination of different embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as “including”, “comprising”, “incorporating”, “have”, “is” used to describe and claim the present disclosure are intended to be construed in a non- exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural where appropriate.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
,CLAIMS:WE CLAIM:
1. A transmission arrangement (100) for an electric vehicle, the transmission arrangement (100) comprising:
- a cylindrical housing (102), wherein the cylindrical housing (102) comprises multiple gear teeth (104) circumferentially disposed on an inner surface of the cylindrical housing (102);
- a gearbox (106) received within the cylindrical housing (102), wherein the gearbox (106) comprises:
- a central gear (108) rotationally located at a centre of the gearbox (106), wherein the central gear (108) receives rotational input;
- a carriage disposed coaxially with the central gear (108);
- multiple orbit gears (110) rotationally disposed on the carriage, wherein each orbit gear (110) simultaneously engages with:
- the central gear (108) to receive the rotational input from the orbit gear; and
- the multiple gear teeth (104) of the cylindrical housing (102); and
- a shifter (112), wherein the shifter (112) selectively engages the:
- central gear (108) to provide a first rotational output; and
- carriage to provide a second rotational output.
2. The transmission arrangement (100) as claimed in claim 1, wherein the multiple gear teeth (104) are disposed along a fixed length on the inner surface of the cylindrical housing (102).
3. The transmission arrangement (100) as claimed in claim 1, wherein the carriage comprises multiple hubs and wherein an orbit gear (110) of the multiple orbit gears (110) is individually disposed rotationally on a hub of the multiple hubs.
4. The transmission arrangement (100) as claimed in claim 3, wherein each hub of the multiple hubs comprises a bearing mechanism.
5. The transmission arrangement (100) as claimed in claim 1, wherein the shifter (112) is connected to a vehicle control unit (VCU) associated with the electric vehicle.
6. The transmission arrangement (100) as claimed in claim 1, wherein the transmission arrangement (100) comprises a torque converter.
7. The transmission arrangement (100) as claimed in claim 1, wherein the shifter (112) comprises a mechanical linkage and wherein the mechanical linkage enables the selective engagement of the central gear (108) and the carriage.
8. The transmission arrangement (100) as claimed in claim 1, wherein the transmission arrangement (100) comprises a lubrication mechanism to distribute lubricant along:
- engagement of the central gear (108) with the multiple orbit gears (110); and
- engagement of each orbit gear (110) with the multiple gear teeth (104) of the cylindrical housing (102).
9. The transmission arrangement (100) as claimed in claim 1, wherein the shifter (112) is connected to a hydraulic actuation mechanism or a pneumatic actuation mechanism.
10. The transmission arrangement (100) as claimed in claim 1, wherein the transmission arrangement (100) comprises a cooling mechanism.