This invention relates to system and method of recharging a stranded two-wheeled electric vehicle through an Electric Two-Wheeler Mobile Charger (TMC) using a Systematic Processes enabled charging framework.
[FIELD OF INVENTION]
The present invention relates to electric vehicles and more specifically to the system and method of recharging a stranded two-wheeled electric vehicle through an Electric Two-Wheeler Mobile Charger (TMC) using a Systematic Processes enabled charging framework. The present invention relates to the field of roadside assistance, impulse charging, and related field.
[BACKGROUND AND PRIOR ART]
Earth's environment over the last decade suffered massive changes on account of growing population as well as growing energy needs. Most of this energy requirement until now has been fulfilled by exploiting our natural reserves of fossil fuels, but it is to be said that these reserves are not only scarce but also are non-renewable. This provoked engineers and scientists to search for alternative sources of energy.
Mobility has been one of the vital requirements of human existence. Since last decade humans have understood the need for alternative energy sources of vehicles and by far, electric motor-based technology has been the preferred choice of auto makers. In order to move shoulder to shoulder in this global quest Indian government from time to time, launched several initiatives and framed many policies to encourage technology developers to work towards e-mobility. Some of these policies are as follows:
a) Alternate fuel for Surface Transportation program (2010-2012)
b) National electric mobility mission plan 2020 (NEMMP)
c) FAME-I Scheme
d) FAME-II Scheme

Although electric mobility will solve major issues with urban transportation like pollution, cost effectiveness and heavy dependence on fossil fuels, the major issue which now creeps in with this new upcoming mode of transportation is that of scarcity of charging stations, network of which definitely will take a very long time to develop in a large country like India. Furthermore, the existing batteries of the electric vehicles especially when electric two-wheelers are concerned provide limited range of upto 100km to 150 km. Therefore, in events of battery drain, the driver will get stranded in middle of nowhere with no charging station available.
The operative part of the Electric Vehicle is the electric motor coupled with the drive train. The electric motor gets its power through the battery inside the electric vehicle, which has sufficient electricity to power the motor only for a few kilometres. But, if an electric vehicle drains out of the electricity, then it is nearly impossible to move them further. This issue can be solved if by any means we are able to give the stranded vehicle an impulse charge sufficient enough to get its motor moving upto the desired distance.
To solve this issue, many skilled persons came forward and proposed solutions.
One major solution to the problem is to introduce swappable batteries. In this the electric vehicle is introduced with the capability of replaceable battery wherein the driver could easily swap the drained battery with the charged one.
Another solution to this problem is to keep additional battery pack loaded over the vehicle which could be used in situations of battery drain and can provide the installed battery with extra juice to keep the motor of the vehicle running.
Attempts to overcome these problems have been published in several published
patent applications. Different technologies have been used across the globe. For
example, Prior art US20210061113A1 discloses ELECTRIC VEHICLE
CHARGING APPARATUS, SYSTEM AND METHODS whereby An electric
vehicle charging system includes an interleaved DC - DC control system configured
to facilitate providing electric charge to an electric vehicle battery and includes a
controller communicatively coupled to the interleaved DC - DC control system. TI,/, :-.+™-i,™»,,^ T~\/^ T~\/^ ^^^.+^^1 „»,„+«™ :-.„1,, J,™ „-. :„«,ni, „,,™,™+ i:™:+:-.,» „:-„,,:+

three parallel boost converters that are each configured to operate in a discrete phase, and unidirectional current circuitry. The controller includes electronic control circuitry configured to control the interleaved DC - DC control system and vehicle communication circuitry configured to establish charging protocols between the interleaved DC - DC control system and the electric vehicle battery. US Patent Application Publication No. US2010071979 (Agassi et al.), describes method of exchanging a battery pack of an exhausted electric vehicle at a battery exchange station. British Patent Application Publication No. GB2460500 (Mayer et al.), discloses a system of accumulating energy in service stations in special high¬speed capacitors which are then used to recharge the electric vehicles. French Patent Application Publication No. FR2872470A1 (Joel Enault) discloses an automatic self-service station for charging of the electric vehicle. Another Patent Application No. GB2502831A (Thomas Mcgeachie) discloses a roadside electric vehicle recharging setup whereby the recharging point is coupled to the existing power and telephony networks. Charging may be by way of an inductive, wireless means or by way of cables. Another US Patent application No. US2010283426 (William Gibbens Redmann) discloses Method and apparatus for charging an electric vehicle from a streetlight whereby An electric vehicle charging system and method allows the power supply previously dedicated to the streetlight to be used for electric vehicle recharging whenever the streetlight is not lit.
While these examples may be suitable for the particular purpose to which they address, they would not be as suitable for the purposes of the present invention as hereafter described.
a) Existing inventions overburden the driver with heavy costs of rescuing the vehicles at the time of battery drain.
b) Existing inventions rely on complex mechanism for swapping drained out battery with that of the charged battery which require stocks of partially or fully charged batteries and Sophisticated systems for removing the at least partially depleted battery (or batteries) and replacing it/them with at least one at least partially charged battery. In fact, in present times it is not feasible to replace/swap batteries of the electric vehicles since in most of

the vehicles the batteries are factory fitted and are seated deep inside the chasis of the vehicle thereby, accessing them would require lot of time. Furthermore, each of the vehicle has a different battery specification thereby, keeping stock of each battery will just be an added burden over the service provider as well as vehicle owner.
c) Existing inventions rely over keeping extra power storage modules such as large power banks along with the vehicle for emergency recharges. This solution is not feasible for electric two wheelers since majority of the power storage devices for electric vehicles are very large in size and eats up majority of the storage area in the vehicle thereby further making mobility inconvenient.
d) Existing inventions rely on the electric vehicle being able to reach the service station at a fixed location or having a battery replacement service.
e) Existing inventions rely on conventional methods of point of contacts between the customer care, customer/user/driver of stranded vehicle and the technician.
f) The existing inventions owing to complex constructions fail to implement multiple solutions into one ecosystem.
g) The existing inventions fail to implement water, dust and shock resistance which are one of the essential safety measures.
h) The existing inventions fail to calibrate the amperage of the charging framework as per the needs of different vehicles.
[OBJECT OF THE INVENTION AND STATEMENT OF INVENTION]
The main object of the invention is to provide compact portable charging mechanism mounted over an Electric Two-Wheeler Mobile Charger (TMC) for drained out electric two-wheelers.
Another objective of the invention is to provide alternative methods of charging electric two - wheelers as against the fixed-point charging ports. Another objective is to provide cost effective method of charging electric two-wheeler thereby encouraging more people for greener mobility.

Another object of the invention is to provide improved and fast service and recharge
mechanism for the stranded electric vehicles.
The special features of the invention that ensure the above objectives are as follows:
a. Existing inventions rely on the electric vehicle being able to reach the service
station at a fixed location. The present invention provides service at the point
of stranding itself.
b. Existing inventions rely on complex methods for replacing batteries, which
require stocks of partially or fully charged batteries and sophisticated systems
for removing the at least partially depleted battery (or batteries) and replacing
it/them with at least one at least partially charged battery. This is practically
not a feasible method as replacing the batteries in a number of electric vehicles
is not only a tedious job but is also a time consuming one. The batteries in most
of the electric vehicles are installed under the vehicle cabinet which are factory
fitted, and replacing the batteries means dismantling the complete cabinet
which needs mechanical assistance. Furthermore, each electric vehicle is
different in model, make and requirements. Therefore replacing entire battery
would require keeping a large stock of different types of batteries thereby
making it nearly impossible to serve to the masses.
c. The existing inventions fail to implement water and dust resistance which are
one of the essential safety measures. The present invention incorporates IP 67
water resistance for the battery chamber and IP54 dust resistance for the
charger cabinet which are one of the best safety standards across industry. This
ensures smooth running of the system in all types of Indian seasons and
weather conditions.
d. Existing inventions do not take heat generation into account during the
charging and discharging process. During operations, the batteries and the
charger tend to generate extreme heat which can result in accidents. This has
been taken care of by implementing fluid based cooling technology in the
charging framework thus avoiding conditions of thermal breakdown.
e. Present inventions do not take safety of the charging equipment into account.
Besides the above stated safety precautions, the batteries selected use gel-based
technology thereby avoiding any chances of spillage. Furthermore, the base of

the cabinet of charging framework incorporates spring-based shock absorbents thus ensuring safe transportation of the system, f The present invention allows to calibrate the amperage of the charging framework as per the needs of different vehicles using smart switching module (SSM).
[SUMMARY OF THE INVENTION]
The present invention is aimed at providing solution for the battery drain issue associated with the Electric two-wheelers during operation and motivate their mass adoption. If an electric two-wheeler suffers battery drain then the only option left with the driver of that vehicle is to tow it to the nearest charging station which in certain cases could be miles apart. The present invention solves this issue by providing a portable charging framework coupled with a high power donor battery and an inverter mounted over a two - wheeler to provide for emergency battery boost at the point of stranding.
[BRIEF DESCRIPTION OF THE DRAWINGS]
The invention will now be described with reference to the accompanying drawings
in which:
Fig 1 illustrates and describes an exemplary modules diagram representation of
power flow of charging framework of TMC
Fig 2 illustrates an exemplary modules diagram representation of current limiter
Circuit (CLC)
Fig 3 illustrates an exemplary modules diagram representing the smart LED
display.
[DETAILED DESCRIPTION OF THE DRAWINGS AND BEST MODE FOR CARRYING OUT THE INVENTION]
This invention described herein relates to a system and method of recharging stranded electric Two - Wheeler through TMC comprising of systematic processes (SP) enabled charging framework. The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the

accompanying drawings. According to the embodiment described herein the charging framework of the TMC may provide an output current to the charger (1.6) of the electric Two - wheeler (1.7). The output current of charging framework of the ETMAV may be boosted using AC-DC conversion by upto nine times using a smart switching module (SSM). It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided here in is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling with in the spirit and scope of the present disclosure as defined by the appended claims. It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof. The Invention consists of several independent yet interconnected units: Fig 1 illustrates a power flow block diagram of charging framework of TMC and its interaction with charging unit of Electric Two-Wheeler (1.7). The charging framework of TMC includes at least a 25.6 Volt Li-ion Donor battery (1.1) to store charge connected through high voltage load lines to AC-DC inverter (1.2) and a switch board (1.3) consisting of Output Socket E-bike charging (1.3.2) and Input socket donor battery charging (1.3.1) modules and Smart Switching Module (SSM) (1.9) consisting of Controller (1.9.1) and Booster (1.9.2) and Current Limiter Circuit (CLC) (1.8). SSM (1.9) regulates the current output voltages. On one end the charging framework may be coupled with donor battery charger (1.4) wherein donor battery charger (1.4) is connected to high power grid (1.5) and on the other end, the charging framework may be coupled with charging network of the electric Two - wheeler (1.7) through the Charger (1.6) and Current Limiter Circuit (1.8) Fig 2 illustrates a block diagram of Current Limiter Circuit (CLC) comprising of an Overload detection sensor (2.1), two Keys (2.2 & 2.5) in open and closed positions respectively and a key rotator (2.4). Advantageously current limiter circuit (CLC) may provide longer life expectancy and safer operation for all power

component of the TMC as well as electric two - wheeler by preventing accidental overloads and power surge.
Fig 3 illustrates a block diagram of smart LED display (1.10) comprising of Micro Computing Chip (MCC) (3.1) and Matrix LED Board (3.2). Advantageously smart LED display (1.10) may provide various health parameters of the Li-ion donor battery (1.1) but these may not only be limited to charge remaining, charge dissipated, cost calculations.
According to one embodiment, the Li-ion donor battery (1.1) is connected to an inverter (1.2) through DC output. Inverter (1.2) is used to convert the DC input received from Li-ion donor battery to AC Output of 230 Volt. The output of the inverter (1.2) is fed into Switch Board (1.3). Switch board (1.3) comprises of Output Socket E-bike charging (1.3.2) and Input socket donor battery charging (1.3.1) modules. The switch board (1.3) provides for dual connection wherein one connection connects to Input socket donor battery charging (1.3.1) on one end and the other end is used to interact with the Donor battery charger (1.4). During the state of non-operation, the Donor battery charger (1.4) is activated by connecting through high power grid (1.5), which then feeds the AC current to input socket donor battery charging module (1.3.1). This current then flows to the inverter (1.2) which inverts AC current into DC current thereby feeding it into Li-ion donor battery (1.1) and then charging it up. In another embodiment, the output socket E-bike charging module (1.3.2) is fed into Smart switching module (SSM) (1.9) comprising of a booster (1.9.2) and a controller (1.9.1) which is further fed into current limiter circuit (CLC) (1.8) connected to the charger (1.6) ranging between 48 volts to 51.2 volt of the Electric two-wheeler. During operation charger starts to demand current from switch board (1.3) which in turn intimates the Inverter (1.2) of the request. The Smart Switching module (SSM) is selectively coupled with the inverter (1.2) and adjusts the output voltage using booster (1.9.2) as per the needs of the Electric Two - wheeler getting charged. The inverter (1.2) then draws DC current from the Li-ion donor battery (1.1) which is then converted into AC output ranging upto 230 Volt and fed into output socket e-bike charging module (1.3.2) which is then given into charger (1.6) and then finally charges E-bike two-wheeler (1.7).

The charging framework also includes at least one Smart LED display indicator coupled with the terminals of Li-ion Battery (1.1) and comprising of micro computing chip (MCC) (3.1) and a Matrix LED board (3.2). The MCC uses Kalman filtering algorithm to measure state of charge of the battery and then creates SOC as a function of potential difference across the terminals. MCC then predicts the amount of charge flowing out or flowing in the battery using this function of voltage and displays the same on the Matrix LED board (3.2) indicator along with the present battery health and capacity. The information on the smart LED display will show the remaining percentage of capacity in the Li-ion donor battery (1.1) along with the charge dissipated to the Electric Two-wheeler (1.6). The Smart LED display may incorporate matrix LED board (3.2) such as used on digital displays. Remainder of information such as battery health and time to operate may also be displayed on the said Matrix LED board (3.2).
In another embodiment the matrix LED board (3.2) may be substituted with LCD display unit.
The whole module is enclosed in an IP67 rating casing thereby preventing environment conditions from affecting the system.
During operations there may be chances of accidental Power surges which could be contributed to several unprecedented conditions. To overcome this Current Limiter Circuit (CLC) comprises of a key in open or closed position (2.2 & 2.5), overload detection sensor (2.1) and a key rotator (2.4). The overload detection sensor (2.1) comprises of a high resistance conductor thereby not allowing current of normal voltage to pass through it and the key (2.2) remains in closed position. If there is an overload, the high voltage current permeates through the resistance barrier of the overload detection sensor (2.1) and passes to Key rotator (2.4) thereby rotating the key (2.5) in an open position. This results in breaking of the circuit thus preventing circuit overload and any possible damage to the equipment.
The charging framework is equipped with high power exhaust fans (not shown) to provide ventilation to the whole system and to dissipate the excess heat generated during operations. In another embodiment, the Li-ion batteries (1.1) may be equipped with cooling gel pads to provide for heat dissipation.

In another embodiment, the whole setup is placed over the floor of the TMC thereby granting mobility functions.
During transportation of the TMC there are chances of jerks over potholes and bumps which will result in shocks to the Li-ion battery (1.1). To combat this the Li-ion Batteries (1.1) are equipped with rubber claddings (not shown) and shockers (not shown) thereby reducing the jerks.
The whole charging framework described above may be installed on a two wheeler thereby providing mobility.

[CLAIMS] We Claim:
1. An Electric Two-Wheeler Mobile Charger (TMC), having charging
framework, wherein the said charging framework comprises of:
— An inverter (1.2) coupled to a Li-ion donor battery(l.l) of range at least 25.6 Volt/1.92 kwh;
— A smart switching module (SSM) (1.9) having a booster (1.9.2) and a controller (1.9.1) to boost and control the output current;
— A current limiter circuit (CLC) (1.8) having a overload detection sensor (2.1) and a key rotator (2.4);
— A smart LED display (1.10) having a Micro Computing Chip (MCC) (3.1) and a Matrix LED Board (3.2);
— High power exhaust fans/cooling gel pads;
— Shock absorbers and Rubber Cladding; and
— An IP67 chamber to provide resistance to harsh weather conditions.
Such that the SSM (1.9) and CLC (1.8) work in collaboration with inverter
(1.2) to feed into or draw energy from the Li-ion donor battery (1.1) and
redirect the same to the electric Two - wheeler (1.7).
2. The Electric Two-Wheeler Mobile Charger (TMC), having charging framework as claimed in claim 1, wherein the controller (1.9.1) of Smart Switching Module (SSM) (1.9) selects the operating voltage of charging framework based on the input received from the charging module of the loaded electric Two - Wheeler.
3. The Electric Two-Wheeler Mobile Charger (TMC), having charging framework as claimed in claim 1, wherein the overload detection sensor (2.1) of Current Limiter Circuit (CLC) (1.8) is coupled with a key rotator (2.4) and is characterized by two keys (2.2 & 2.5) whereby during overload the key rotator (2.4) rotates and turns the key (2.5) into open position thus breaking the circuit and protecting equipment.
4. The Electric Two-Wheeler Mobile Charger (TMC), having charging framework as claimed in claim 1, wherein Micro Computing Chip (MCC) (3.1) of Smart LED Display (1.10) calculates the state of charge (SOC) of the Li-ion donor battery (1.1) and converts it as a function of potential difference across the terminals of the Li-ion donor battery (1.1).
5. A method of recharging a stranded two-wheeled electric vehicle through an Electric Two-Wheeler Mobile Charger (TMC), said method comprising of:

— Determining the charge in the Li-ion donor battery (1.1);
— Determining the power requirement of the battery of the electric Two - wheeler battery;
— Switching the functionality of the inverter (1.2) based on the input from SSM( 1.9);
— Determining the total time of operation of the charging framework;

— Breaking the circuit during overload using current limiter circuit (CLC)(1.8).
— Displaying the charge dissipated, Li-ion Donor battery (1.1) health and final cost over the Smart LED Display (1.10).
6. The method as claimed in claim 5, wherein the charging framework:
— Feeds charge back to the Li-ion donor battery (1.1) using Input socket donor battery charging (1.3.1) coupled with inverter (1.2); and
— Draws current from Li-ion donor battery (1.1) using output socket e-bike charging (1.3.2) coupled with inverter (1.2);

7. The method as claimed in claim 5, wherein the charging framework acts by determining waveform and converting AC current into DC current using AC-DC converting module and DC current into AC current using DC-AC converting module.
8. The method as claimed in claim 5, wherein the SSM (1.9):

— Boosts the output voltage of the inverter to match the circuit of the electric Two-wheeler to be charged; and
— Controls the current flow through the inverter and charge from the Li-ion donor battery (1.1) using controller (1.9.1).
— turns the inverter (1.2) on or off depending on the power requirement.
9. The method as claimed in claim 5, wherein the (CLC) (1.8):
— Detects events of high voltage using overload detection sensor (2.1) and engaging key rotator (2.4);
— Lifts the key ( 2.5) to open position thereby breaking the circuit when overload detection sensor detects an overload.
— Lifts the key ( 2.2) to closed position thereby completing the circuit during normal charging.
10. The method as claimed in claim 5, wherein the MCC (3.1) computes the
battery health and charge remaining by converting the State of Charge
(SOC) of the Li-ion donor battery (1.1) as a function of potential difference
across the terminals of battery using Kalman filtering and displays the
results on the Matrix LED Board (3.2).