Description:TECHNICAL FIELD

[001] The present disclosure generally relates to the field of electric vehicles and more particularly to a modular charging system for an electric vehicle.

BACKGROUND

[002] Electric vehicles, for example electric scooters or e-bikes, have gained significant popularity as a mode of transportation in urban and rural areas due to eco-friendliness. The electric vehicles are revolutionizing rural and urban mobility and have several noteworthy features including, but not limited to, sustainability, convenience, low operational and maintenance costs, versatility, low noise, and technological advancements.

[003] Despite several advantages, electric vehicles have some disadvantages related to charging time and charging infrastructure. For example, even if the charging infrastructure for electric vehicles is expanding, the availability of fast-charging stations is still limited in certain areas. This often leads to longer charging time and inconvenience for the users who need to charge their vehicles quickly. Additionally, the charging time of an electric vehicle with conventional chargers depends on the charger type. For example, level 1 chargers, which are standard household chargers, have slower charging speed compared with the level 2 chargers, which are commonly found in public charging stations. On the other hand, direct current (DC) fast chargers are designed for quick charging, the charging speed of such chargers are substantially higher than the level 2 chargers. Therefore, users need to select different chargers based on their charging time and specific requirements.

[004] One of a prior art reference discloses a portable charging device comprising a casing containing means for converting the electric current, the casing being provided with a connector to directly connect the device to the electric vehicle and to power the battery of the electric vehicle, and the charging device is adapted to be supplied with an input current from a power source, to convert by the electric current conversion means, the input current in direct current output, and to feed the battery of the electric vehicle with said direct current output. Said charging device operates in two modes, wherein in one mode, the power source is a direct current source, preferably an external battery, and in which the input current is direct current. In another mode, a power source is an alternating current source, and preferably it is the mains power supply, and in which the input current is alternating current. Hence, the reference discloses a charging device compatible with both AC and DC sources. However, the reference fails to teach or disclose a method or a system for enhancing the charging rate to reduce the charging time of an electric vehicle.

[005] Hence, there is a need for a modular charging system for electric vehicles to enhance the charging speed of the electric vehicles.

BRIEF SUMMARY

[006] This summary is provided to introduce a selection of concepts in a simple manner that is further described in the detailed description of the disclosure. This summary is not intended to identify key or essential inventive concepts of the subject matter nor is it intended for determining the scope of the disclosure.

[007] To overcome or mitigate at least one of the problems mentioned above, there exists a need for a modular charging system for electric vehicles to enhance the charging speed of the electric vehicles and hence to reduce the charging time.

[008] Thus, disclosed is a modular charging system for electric vehicles to enhance the charging speed of the electric vehicles. The modular charging system comprises, an input charging connector configured to be electrically connected to one of an alternating current (AC) power source or a direct current (DC) power source or both, a charger electrically coupled to a battery, and a plurality of charging adapters configured to be electrically and mechanically coupled between the input charging connector and the charger, wherein the plurality of charging adapters is configured for increasing a charging rate of the battery. In one embodiment, each charging adapter comprises AC lines extending from AC lines input terminals to AC lines output terminals of the charging adapter, DC lines extending from DC lines input terminals to DC lines output terminals of the charging adapter, and an AC to DC converter connected to the AC lines and the DC lines such that when the plurality of charging adapters is connected, the DC lines are fed by each of the AC to DC converters of the plurality of charging adapters for increasing the charging rate of the battery.

[009] To further clarify advantages and features of the present disclosure, a more particular description of the disclosure will be rendered by reference to specific embodiments thereof, which is illustrated in the appended figures. It is to be appreciated that these figures depict only typical embodiments of the disclosure and are therefore not to be considered limiting of its scope. The disclosure will be described and explained with additional specificity and detail with the accompanying figures.

BRIEF DESCRIPTION OF THE FIGURES

[0010] The disclosed method and system will be described and explained with additional specificity and detail with the accompanying figures in which:

[0011] Figure 1 illustrates an electric automotive ecosystem comprising an electric vehicle and a charging infrastructure connected to the electric vehicle;

[0012] Figure 2 illustrates a block diagram of a modular charging system for an electric vehicle in accordance with an embodiment of the present disclosure;

[0013] Figure 3 illustrates a detailed electrical block diagram of the modular charging system in accordance with an embodiment of the present disclosure;

[0014] Figure 4 illustrates an exemplary modular charging system with five charging adapters in accordance with an embodiment of the present disclosure;

[0015] Figure 5A illustrates a side view of an exemplary charging adapter in accordance with an embodiment of the present disclosure;

[0016] Figure 5B illustrates a three-dimensional view of the exemplary charging adapter in accordance with an embodiment of the present disclosure; and

[0017] Figure 6 illustrates three charging adapters connected sequentially in accordance with an embodiment of the present disclosure.
[0018] Further, persons skilled in the art to which this disclosure belongs will appreciate that elements in the figures are illustrated for simplicity and may not have been necessarily drawn to scale. Furthermore, in terms of the construction of the joining ring and one or more components of the bearing assembly may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the figures with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION

[0019] For the purpose of promoting an understanding of the principles of the present disclosure, reference will now be made to the various embodiments and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the present disclosure is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the present disclosure as illustrated therein being contemplated as would normally occur to one skilled in the art to which the present disclosure relates.

[0020] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the present disclosure and are not intended to be restrictive thereof.

[0021] Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more…” or “one or more elements is required.”

[0022] Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

[0023] Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternative embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

[0024] Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

[0025] The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or sub-systems or elements or structures or components proceeded by “comprises... a” does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or other components or additional devices or additional sub-systems or additional elements or additional structures or additional components.

[0026] Embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.

[0027] For the sake of clarity, the first digit of a reference numeral of each component of the present disclosure is indicative of the Figure number, in which the corresponding component is shown. For example, reference numerals starting with digit “1” are shown at least in Figure 1. Similarly, reference numerals starting with digit “2” are shown at least in Figure 2.

[0028] Embodiments of the present disclosure disclose a modular charging system for electric vehicles. The electric vehicle as described herein may include but not limited to Battery Electric Vehicle (BEV), Hybrid Electric Vehicle (HEV) and Range Extended Electric Vehicle and may have one or more wheels. Furthermore, the electric vehicle may have at least one wheel which is electrically powered to drive such a vehicle. The term ‘wheel’ may refer to any ground-engaging member which allows traversal of the electric vehicle over a path.

[0029] Figure 1 illustrates an electric automotive ecosystem comprising an electric vehicle and a charging infrastructure connected to the electric vehicle. In construction, the electric vehicle (EV) 100 typically comprises a battery or battery pack 105 enclosed within a battery casing and includes a Battery Management System (BMS), an on-board charger 110, a Motor Controller Unit (MCU), an electric motor 115 and an electric transmission system 120. The primary functions of the above-mentioned elements are detailed in the following paragraphs: The battery of an EV 100 (also known as Electric Vehicle Battery (EVB) or traction battery) is re-chargeable in nature and is the primary source of energy required for the operation of the EV, wherein the battery 105 is typically charged using the electric power from the grid through a charging infrastructure 125. The battery may be charged using Alternating Current (AC) or Direct Current (DC), wherein, in case of AC input, the on-board charger 110 converts the AC power to DC power after which the DC power is transmitted to the battery through the BMS. However, in case of DC charging, the on-board charger 110 may be bypassed, and the current transmitted directly to the battery through the BMS. Additionally, the EV 100 may also be equipped with wired or wireless or wired and wireless infrastructure such as, but not limited to Bluetooth, Wi-Fi, controller area network (CAN), Ethernet, Universal Serial Bus (USB), universal asynchronous receiver / transmitter (UART), Local Area network (LIN), Inter-Integrated Circuit (I2C), serial peripheral interface (SPI), Synchronous Serial Interface (SSI) and so on to facilitate wireless communication with the charging infrastructure 125, other EVs or the cloud.

[0030] The battery 105 is made up of a plurality of cells which are grouped into a plurality of modules. The terms “battery”, and “battery pack” may be used interchangeably and may refer to any of a variety of different rechargeable cell compositions and configurations including, but not limited to, lithium-ion (e.g., lithium iron phosphate, lithium cobalt oxide, other lithium metal oxides, etc.), lithium-ion polymer, nickel metal hydride, nickel cadmium, nickel hydrogen, nickel-zinc, silver zinc, or other battery types or configurations. The term “battery pack” as used herein may refer to multiple individual batteries enclosed within a single structure or multi-piece structure. The individual batteries may be electrically interconnected to achieve a desired voltage and current capacity for a desired application. The Battery Management System (BMS) is an electronic system, the primary function of which is to ensure that the battery 105 is operating safely and efficiently. The BMS continuously monitors different parameters of the battery such as temperature, voltage, current and so on, and communicates these parameters to the Electronic Control Unit (ECU) and the Motor Controller Unit (MCU) in the EV using one or more protocols including but not limited to, Controller Area Network (CAN) bus protocol which facilitates the communication between the ECU and MCU and other peripheral elements of the EV 100 without the requirement of a host computer.

[0031] The MCU primarily controls or regulates the operation of the electric motor based on the power transmitted from the vehicle’s battery, wherein the primary functions of the MCU include starting the electric motor 115, stopping the electric motor 115, controlling the speed of the electric motor 115, enabling the vehicle to move in the reverse direction and protect the electric motor 115 from premature wear and tear. The primary function of the electric motor 115 is to convert electrical energy into mechanical energy, wherein the converted mechanical energy is subsequently transferred to the transmission system of the EV to facilitate movement of the EV. Additionally, the electric motor 115 also acts as a generator during regenerative braking (that is, kinetic energy of the EV in motion is converted into electrical energy and stored in the battery of the EV). The types of motors generally employed in EVs include, but are not limited to DC series motor, Brushless DC motor (also known as BLDC motors), Permanent Magnet Synchronous Motor (PMSM), Three Phase AC Induction Motors and Switched Reluctance Motor (SRM).

[0032] The transmission system 120 of the EV 100 facilitates the transfer of the generated mechanical energy by the electric motor 115 to the wheels (130a, 130b) of the EV. Generally, the transmission systems 120 used in EVs include single speed transmission system and multi-speed (i.e., two-speed) transmission system, wherein the single speed transmission system comprises a single gear pair whereby the EV runs at a constant speed ratio between the motor rotational speed and the wheel rotational speed. However, the multi-speed/two-speed transmission system comprises different gear ratios which facilitates higher torque and vehicle speed depending on the selected gear ratio.

[0033] In one embodiment, all data pertaining to the EV 100 or charging infrastructure 125 or both, are collected and processed using a remote server (known as cloud) 135, wherein the processed data is indicated to the rider of the EV 100 through a display unit present in the dashboard 140 of the EV 100. In an embodiment, the display unit may be an interactive or touch sensitive display unit. In another embodiment, the display unit may be a non-interactive display unit. It is noteworthy that the electric vehicle, as described with reference to Figure 1, provides a context in which various embodiments of the present disclosure may be described and observed. Subsequently, the embodiments of the present disclosure are described by referring to the essential elements and the structure of an electric vehicle.

[0034] As described, embodiments of the present disclosure disclose a modular charging system for electric vehicles, for example the electric vehicle 100. Figure 2 illustrates a block diagram of a modular charging system for an electric vehicle in accordance with an embodiment of the present disclosure. As shown, the modular charging system 200 comprises an input charging connector 205, an input cable 210, a plurality charging adapters 215-1 to 215-N, a vehicle charging connector 220 and a charger 225, wherein the plurality of charging adapters 215-1 to 215-N is electrically and mechanically coupled between the input charging connector 205 and the charger 225.

[0035] The input charging connector 205, often referred to as a plug, allows the electric vehicle 100 to connect to an external power source for the purpose of charging the battery 105. In one embodiment of the present disclosure, the input charging connector 205 is configured to be electrically connected to one of an AC power source or a DC power source or both. Hence, the input charging connector 205 facilitates the transfer of electrical energy from the charging station or power source to the vehicle's battery 105 through the charger 225 of the electric vehicle 100. In one embodiment of the present disclosure, a type 2 charging connector, for example IEC/3Pin charging connector is used for connecting the charging system 100 with the external power source. However, different types of the charging connectors, such as Type 1, Type 2, Type 2 charger with DC fast-charging pins, etc., may be used based on regional standards, vehicle manufacturers, and charging infrastructure. In one embodiment of the present disclosure, the input charging connector 205 comprises an In-Cable Control Box (ICCB) 230 for protecting the vehicle and the modular charging system 200. The ICCB 230 may include but not limited to, temperature sensors, short-circuit protection means, power regulators, etc. The ICCB 230 may have control functions related to the charging process, such as regulating the power flow, managing charging protocols, and initiating or stopping charging sessions.

[0036] In one embodiment of the present disclosure, the input cable 210 connects the charging connector 250 and the plurality of charging adapters 215-1 to 215-N and facilitates transfer of electrical energy from a charging station to the plurality of charging adapters 215-1 to 215-N. Alternatively, a charging adapter 215-1 may be directly connected to the charging connector 250.

[0037] In one embodiment of the present disclosure, each of the plurality of charging adapters 215-1 to 215-N comprises alternating current (AC) lines, direct current (DC) lines, and an AC to DC converter connected to the AC lines and the DC lines. In one embodiment, the AC to DC converter receives alternating current from the AC lines, converts to direct current which is fed to the DC lines for charging the battery 105 of the electric vehicle 100. The AC to DC converter of the charging adapter may include diodes to convert AC to pulsating DC and capacitors to filter the DC and smooth out the voltage. Additionally, the AC to DC converter may include voltage regulator to maintain a constant DC output voltage. Further, each charging adapter 215 comprises an input connector and an output connector.

[0038] The charger 225 is electrically coupled to the battery 105 of the electric vehicle 100 and configured to convert the alternating current from the charging station into direct current to charge the battery 105 of the electric vehicle 100. Hence, the charger 225 comprises AC to DC converter with diodes, capacitors, voltage regulator, etc. It is important to note that the charger 225 may be either an onboard charger or an offboard charger (external charger). Offboard chargers are typically installed in charging stations and are responsible for converting AC power from the grid to DC power for charging the EV battery. However, for the purpose of explaining the functionalities of the disclosed modular charging system 200, an onboard charger is considered. The charger 225 is integrated with the Battery Management System (BMS), of the electric vehicle 100 to ensure proper charging and to monitor the battery's health. In one implementation, the charger 225 is electrically connected to the AC lines output terminal of a charging adapter among a plurality of charging adapters 215-1 to 215-N through the vehicle charging connector 220. Further, the charger 225 is electrically connected to the DC lines output terminals 335 of the charging adapter through the vehicle charging connector 220.

[0039] As described, the modular charging system 200 comprises the input charging connector 205 configured to be electrically connected to one of the AC power source or the DC power source or both, the charger 225 electrically coupled to the battery 105, and the plurality of charging adapters 215-1 to 215-N configured to be electrically and mechanically coupled between the input charging connector 205 and the charger 225, wherein the plurality of charging adapters 215-1 to 215-N is configured for increasing a charging rate of the battery 105.

[0040] In one embodiment of the present disclosure, one or more charging adapters 215 are electrically and mechanically coupled between the input charging connector 205 and the charger 225 for increasing the charging rate of the battery 105. That is, based on the requirement, a user may connect one or more charging adapters 215 sequentially between the input charging connector 205 and the charger 225 for increasing the charging rate of the battery 105.

[0041] Figure 3 illustrates a detailed electrical block diagram of the modular charging system in accordance with an embodiment of the present disclosure. As shown, the modular charging system 200 is connected to an AC and DC source 305 using the input charging connector 205. Further, the plurality of charging adapters 215-1 to 215-N is electrically and mechanically coupled between the input charging connector 205 and the charger 225. In one embodiment of the present disclosure, each charging adapter, for example as shown with charging adapter 215-1, comprises AC lines 310 extending from AC lines input terminals 315 to AC lines output terminals 320 of the charging adapter 215-1. Further, each charging adapter, for example as shown with charging adapter 215-1, comprises DC lines 325 extending from DC lines input terminals 330 to DC lines output terminals 335 of the charging adapter 215-1. As shown, the input charging connector 205 connects the AC source and the DC source to the AC lines input terminals 315 and the DC lines input terminals 330 respectively. Furthermore, each charging adapter, for example as shown with charging adapter 215-2, comprises the proximity pilot (PP) line 340 and control pilot (CP) line 345 to transfer control information in the charging infrastructure, for example between the charging station and the electric vehicle 100. Furthermore, each charging adapter comprises communication protocol lines 350, for example controller area network (CAN) protocol lines, which connects each charging adapter with the input charging connector 205 and the vehicle charging connector 220 for communicating information related to charging parameters.

[0042] Further, in one embodiment of the present disclosure, each charging adapter, for example as shown with charging adapter 215-1, comprises an AC to DC converter 355 connected to the AC lines 310 and the DC lines 325 such that when the plurality of charging adapters 215-1 to 215-N is connected, the DC lines 325 are fed by each of the AC to DC converters of the plurality of charging adapters 215-1 to 215-N for increasing the charging rate of the battery 105. As shown, each charging adapter, for example charging adapter 215-1, comprises the AC to DC converter 355 connected between the AC lines 310 and the DC lines 325, wherein the AC to DC converter 355 converts the AC input to DC output and the DC output fed to the DC lines 325 to charge the battery 105 of the electric vehicle 100. Hence, in one embodiment of the present disclosure, when the plurality of charging adapters 215-1 to 215-N are connected sequentially, the DC output of each of the charging adapters 215-1 to 215-N will add up to charge the battery 105 of the electric vehicle 100 and hence increases the charging rate of the battery 105. In other words, the DC sources (AC to DC converters), which are connected in parallel, collectively contribute their currents to charge the battery 105 of the electric vehicle 100.

[0043] Further, referring to Figure 3, when the plurality of charging adapters 215-1 to 215-N are connected sequentially, the AC lines 310 of each charging adapters gets connected to each other and hence electrically connects the AC power source 305 to the charger 225 of the electric vehicle 100. The charger 225 converts the AC input to DC output to charge the battery 105 of the electric vehicle 100. Hence the battery 105 is charged by the DC output from the charger 225 and the DC output from the plurality of charging adapters 215-1 to 215-N. If the source is exclusively a DC source, the DC power is transferred through the DC lines 325 of the plurality of charging adapters 215-1 to 215-N to charge the battery of the electric vehicle 100. It is to be noted that each of the plurality of charging adapters 215-1 to 215-N is assigned with a unique identifier, wherein the unique identifier may contain model number, serial number, or combination thereof, and based on the unique identifier, specifications of multiple connected charging adapters are identified. In one embodiment of the present disclosure, each charging adapter 215-1 to 215-N comprises a communication module 360 that facilitates bidirectional communication between the charging adapter and the charger 225, and between the charging adapter and the ICCB 230 to control over the charging process. In one embodiment of the present disclosure, the charger 225 is configured to receive required electric power from one or more charging adapters among the plurality of charging adapters 215-1 to 215-N based on wattage of each of the plurality of charging adapters 215-1 to 215-N and power requirement of the battery 105.

[0044] As described, the modular charging system 200 disclosed in the present disclosure enables the users to connect one or more charging adapters 215 to increase the charging rate of the battery 105 of the electric vehicle. Figure 4 illustrates an exemplary modular charging system with five charging adapters in accordance with an embodiment of the present disclosure. As shown, five charging adapters 215-1 to 215-5 are connected sequentially between an AC power source 405 and the charger 225 through the input charging connector 205 and the vehicle charging connector 220. Each charging adapter bypasses the AC to the charger 225 through the AC lines 310 and the charger 225 converts the AC input to DC output to charge the battery 105 of the electric vehicle. Further, each charging adapter converts the AC input to DC output and the DC output of all the five charging adapters 215-1 to 215-5 will add up to charge the battery 105 of the electric vehicle. Considering each charging adapter of 250W and maximum power output of the AC source of 6A, a user may connect maximum of five charging adapters to the modular charging system to increase the charging rate of the battery 105 and hence to reduce the charging time. Even if the user connects a sixth charging adapter, the charger 225 utilizes five charging adapters to derive the required power to charge the battery 105 of the electric vehicle 100. In one embodiment of the present disclosure, the ICCB 230 is configured to accept required power based on the maximum power output of the power source. For example, considering maximum current output of an AC source of 6A, the ICCB 230 is configured to accept maximum power of 6A when connected to the power source. Hence, ICCB of different current ratings are used based on the output of the power source.

[0045] As described, the modular charging system 200 disclosed in the present disclosure enables the users to connect one or more charging adapters 215 to increase the charging rate of the battery 105 of the electric vehicle 100. Considering a battery charger of 3kW and an electric vehicle with a battery of 6kW, it takes approximately two hours to fully charge the battery with the conventional chargers. However, with the modular charging system disclosed in the present disclosure, the user may connect three additional charging adapters of 1kW each to fully charge the battery in one hour, hence reducing the charging time.

[0046] In one embodiment of the present disclosure, the AC lines 310, the DC lines 325, the AC to DC converter 355, the PP line 340, the CP line 345 and the protocol lines 350 are assembled in a housing. Figure 5A illustrates a side view of an exemplary charging adapter in accordance with an embodiment of the present disclosure. Figure 5B illustrates a three-dimensional view of the exemplary charging adapter. Referring Figure 5A and 5B, the AC lines 310, the DC lines 325, the AC to DC converter 355, the PP line 340, the CP line 345 and the protocol lines 350 are assembled in a housing 505. Further, the charging adapter 215 comprises an input connector 510 (for example a female connector) and an output connector 515 (for example a male connector) which enables to connect the multiple charging connector sequentially and to connect to the input charging connector 205 and the vehicle charging connector 220. Figure 6 illustrates three charging adapters connected sequentially. As shown, the input connector of the charging adapter 215-1 may be connected to the input connector 205 for receiving the power from the power source. The output connector of the charging adapter 215-1 and the output connector of the charging adapter 215-2 are coupled to the input connector of the charging adapter 215-2 and the input connector of the charging adapter 215-3 respectively. Further, the output connector of the charging adapter 215-3 may be connected to the vehicle charging connector 220 for delivering the AC power to the charger 225 and the DC power to charge the battery 105 of the electric vehicle 100.

[0047] As described, the modular charging system 200 disclosed in the present disclosure enables the users to connect multiple charging adapters 215 to increase the charging rate of the battery of the electric vehicle and hence to reduce the charging time in comparison with the conventional chargers. Even though the working principle of the modular charging system 200 is described considering an electric vehicle, the modular charging system 200 may be used for any battery.

[0048] While specific language has been used to describe the disclosure, any limitations arising on account of the same are not intended. As would be apparent to a person skilled in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.

[0049] The figures and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples. Numerous variations, whether explicitly given in the specification or not, such as differences in structure, dimension, and use of material, are possible. The scope of embodiments is at least as broad as given by the following claims.

List of reference numerals:
Components Reference numerals
Vehicle 100
Battery or Battery pack 105
On-board charger 110
Electric motor 115
Transmission system 120
Charging infrastructure 125
Wheels 130a and 130b
Remote server 135
Dashboard 140
Modular charging system 200
Input charging connector 205
Input cable 210
A plurality of charging adapters 215-1 to 215-N
Vehicle charging connector 220
Charger 225
In-Cable Control Box (ICCB) 230
AC and DC source 305
AC lines 310
AC lines input terminals 315
AC lines output terminals 320
DC lines 325
DC lines input terminals 330
DC lines output terminals 335
proximity pilot (PP) line 340
control pilot (CP) line 345
communication protocol lines 350
AC to DC converter 355
Communication module 360
AC power source 405
Housing 505
Input connector of the charging adapter 510
Output connector of the charging adapter 515 , Claims:1. A modular charging system (200) for an electric vehicle (100), the modular charging system (200) comprising:
an input charging connector (205) configured to be electrically connected to one of an alternating current (AC) power source or a direct current (DC) power source or both;
a charger (225) electrically coupled to a battery (105); and
a plurality of charging adapters (215-1 to 215-N) configured to be electrically and mechanically coupled between the input charging connector (205) and the charger (225), wherein the plurality of charging adapters (215-1 to 215-N) is configured for increasing a charging rate of the battery (105).

2. The modular charging system (200) as claimed in claim 1, wherein the input charging connector (205) comprises an in-cable control box.

3. The modular charging system (200) as claimed in claim 1, wherein each charging adapter comprises:
AC lines (310) extending from AC lines input terminals (315) to AC lines output terminals (320) of the charging adapter; and
DC lines (325) extending from DC lines input terminals (330) to DC lines output terminals (335) of the charging adapter;
an AC to DC converter (355) connected to the AC lines (310) and the DC lines (325) such that when the plurality of charging adapters (215-1 to 215-N) is connected, the DC lines (325) are fed by each of the AC to DC converters (355) of the plurality of charging adapters (215-1 to 215-N) for increasing the charging rate of the battery (105).

4. The modular charging system (200) as claimed in claim 3, wherein the AC lines (310) of the charging adapters electrically connected the AC power source to the charger (225) through the input charging connector (205), wherein the charger (225) is configured to convert AC input from the AC power source to DC output for charging the battery (105).
5. The modular charging system (200) as claimed in claim 3, the DC lines (325) of each charging adapter are connected to each other and the AC lines (310) of each charging adapters are connected each other for increasing the charging rate of the battery (105).

6. The modular charging system (200) as claimed in claim 3, wherein the AC lines (310), the DC lines (325), and the AC to DC converter (355) are assembled in a housing (505).

7. The modular charging system (200) as claimed in claim 1, wherein each of the plurality of charging adapters (215-1 to 215-N) comprises an input connector (510) and an output connector (515).

8. The modular charging system (200) as claimed in claim 1, wherein each of the plurality of charging adapters (215-1 to 215-N) comprises proximity pilot line (340), control pilot line (345) and communication protocol lines (350).

9. The modular charging system (200) as claimed in claim 1, wherein each of the plurality of charging adapters (215-1 to 215-N) comprises a communication module (360) facilitating bidirectional communication between the charging adapter and the charger (225), and between the charging adapter and the ICCB (230).

10. The modular charging system (200) as claimed in claim 1, wherein the charger (225) is configured to receive required electric power from one or more charging adapters among the plurality of charging adapters (215-1 to 215-N) based on wattage of each of the plurality of charging adapters (215-1 to 215-N) and power requirement of the battery (105).