FORM 2
The Patent Act 1970
(39 of 1970)
&
The Patent Rules  2005

COMPLETE SPECIFICATION
(SEE MEMBER 10 AND RULE 13)

TITLE OF THE INVENTION

“MULTI-POWERED ELECTRIC VEHICLE”

APPLICANTS:

Name : Mahindra &Mahindra Ltd.

Nationality : Indian

Address : Mahindra Research Valley  Mahindra World
City Plot No. 41/1  Anjur P.O. Chengalpattu
Kancheepuram Dist  Tamilnadu.- 603204

The following specification particularly describes and ascertains the nature of this invention and the manner in which it is to be performed:-

FIELD OF INVENTION
[001] The embodiments herein relate to a vehicle  and more particularly but not exclusively to a vehicle configured to be propelled by a motor which is adapted to receive energy from a plurality of energy sources.

BACKGROUND OF INVENTION
[002] Motor vehicles have become an integral part of human life. People use motor vehicles for transportation purposes and several other purposes such as trading of goods and services from one place to another. In agricultural sectors  motor vehicles such as tractors are used to plow fields  sow seeds  harvest crops and perform various other operations. With respect to agricultural vehicles  features such as delivering of high torque at low speeds make tractors extremely versatile and well suited for use within the often harsh agricultural farm.
[003] Most of the motor vehicles are usually powered by internal combustion engines. Source of energy for the internal combustion engines are fossil fuels such as diesel and petroleum. Modern agricultural vehicles employ diesel engines to obtain necessary power output. Although  internal combustion engines provide necessary power output  the energy sources such as diesel and petroleum used for internal combustion engines are non-renewable and cause environmental pollution.
[004] With increase in population  demand for fossil fuels has also increased. Various studies have revealed that the number of oil resources have decreased substantially ever since industrial revolution. Further  as a result of decreasing oil resources  the prices of fossil fuels have also been increased enormously in the past decade. Higher oil prices have resulted in increased costs for tractor fuel  agricultural chemicals and the transport of farm inputs and outputs. Further  burning of fossil fuels in the combustion engines results in the emission of harmful gases (pollutants) such as hydrocarbons  nitrous oxides and carbon monoxide. These pollutants result in the formation of ground level ozone and acid rain  thereby causing environmental and health problems. Furthermore  maintenance of internal combustion engines is also a tedious task  as it requires the user to provide frequent coolants  oil and filter changes and so on. Further  the internal combustion engines vibrate heavily due to the rapid pressure exerted by pistons  thereby resulting in noise.
[005] At present  attempts have been made to mitigate the problems associated with internal combustion engines by some electric tractor concepts.. Electric tractors use electricity as a source of energy unlike conventional tractors which use fossil fuels that is non-renewable. Further  electric tractors utilize electric motor which is powered by a battery. However  conventional electric tractors have limited energy storage  which makes the electric vehicles not suitable for prolonged usage. . Further  electricity used by conventional electric tractors is mostly obtained by burning coal. Burning coal releases green house gases which may add up to the global warming thereby making the conventional electric vehicles partially inefficient in preventing environmental problems. Further  the battery maintenance of electric tractors requires special attention as both overcharging and undercharging of battery will decrease the life of battery. Further  in the conventional electric tractors  the motor is directly connected to the wheels which results in a single speed transmission. The single speed transmission results in an oversized electric motor to satisfy both maximum torque and speed requirements.
[006] Therefore  there is a need for providing readily usable energy from off-board energy sources  not limited by on-board energy storage capacity to the electric tractor in order to enable prolonged usage. Further  there is a need of necessary power management system in order to increase the efficiency of batteries. Further  there is a need of improved electric tractor that could offer multispeed transmission. Furthermore  there is a need for electric vehicles in general that could overcome the aforementioned drawbacks of existing technologies.

OBJECT OF INVENTION
[007] The principal object of this invention is to provide an electric vehicle such as an electric tractor that could be powered by multiple energy sources in order to enable prolonged usage.
[008] Another object of the invention is to provide a renewable source of energy to power the electric vehicle.
[009] A further object of the invention is to provide a power management system for an electric vehicle such as an electric tractor that could increase the efficiency of batteries thereby increasing the overall efficiency of the electric vehicle.
[0010] A further object of the invention is to provide a power management system for an electric vehicle that could utilize the excess power generated by the energy source effectively.
[0011] A further object of the invention is to provide an electric vehicle such as an electric tractor that could enable multi speed transmissions.
[0012] Yet another object of the invention is to provide an electric vehicle that could overcome the aforementioned drawbacks of the conventional electric vehicles.

BRIEF DESCRIPTION OF FIGURES
[0013] This invention is illustrated in the accompanying drawings  throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings  in which:;
[0014] Fig. 1 is a block diagram depicting architecture of the electric vehicle according to an embodiment of the present invention;
[0015] Fig. 2 is a block diagram depicting architecture of the electric vehicle that enables multi speed transmission according to an embodiment of the present invention;
[0016] Fig. 3 is a layout depicting the electric vehicle that includes clutch assembly and gear box assembly according to an embodiment of the present invention;
[0017] Fig. 4 depicts side view of the electric vehicle according to an embodiment of the present invention;
[0018] Fig. 5 is a flowchart depicting the method for providing an electric vehicle such as electric tractor that could be propelled by plurality of energy sources according to an embodiment of the present invention;
[0019] Fig. 6 is a bock diagram depicting the intelligent power handler according to an embodiment of the present invention; and
[0020] Fig. 7 depicts top view of the electric vehicle according to an embodiment of the present invention.

DETAILED DESCRIPTION OF INVENTION
[0021] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. For example  it should be noted that while some embodiments are explained with respect to electric tractors for the ease of describing  other vehicles apart from electric tractors may also incorporate the subject matter of the invention with little or no modifications. Accordingly  the examples should not be construed as limiting the scope of the embodiments herein.
[0022] The embodiments herein provide an electric vehicle such as an electric tractor that could be propelled by plurality of energy sources. Further  the embodiments herein provide an electric tractor that could enable multi speed transmissions. Furthermore  the embodiments herein provide a power management system for an electric vehicle such as electric tractor that could increase the efficiency of batteries of the electric vehicle. Referring now to the drawings  and more particularly to FIGS. 1 through 7  where similar reference characters denote corresponding features consistently throughout the figures  there are shown embodiments.
[0023] Fig. 1 is a block diagram depicting architecture 100 of the electric vehicle according to an embodiment of the present invention. In an embodiment  electric vehicle is the electric tractor. However  it is also within the scope of invention that the electric vehicle could be any other hybrid vehicle or vehicle propelled by motor and uses electricity as the source of energy  as can be deduced from this description. The electric vehicle according to an embodiment of the present invention includes a power source from at least one of power supply 102  a renewable resource 104 and a productivity enhancer 106. The electric vehicle further includes battery 108  a motor 110  a controller 112  an inverter 114 and an intelligent power handler 116.
[0024] In one embodiment of the present invention  AC power supply 102 is configured to charge the battery 108 of the electric vehicle. Further  the AC power supply 102 is a three phase system  as three phase systems are economical. However  it is also within the scope of invention that the AC power supply 102 could be selected from any other type of systems such as single phase system and double phase system without otherwise deterring the intended function of the AC power supply 102 as can be deduced from this description. Further  the AC power supply 102 is configured to charge the battery 108 and the intelligent power handler 116 via plurality of cables 502 (as shown in fig. 7) wound on a cable drum 504 (as shown in fig. 7). In an embodiment  the intelligent power handler 116 is configured to provide necessary energy conversion to convert the energy obtained from the AC power supply 102 to the type of energy that could be stored in the battery 108. The battery 108 is selected from a group of traction batteries that could be used in the electric vehicle. The traction batteries include but are not limited to lead acid batteries  nickel metal hydride batteries  zebra batteries and lithium ion batteries. Further  the electric vehicle according to the present invention can include plurality of batteries based on the requirements. In an embodiment  the electric vehicle includes three sets of battery including one set of battery 108a that is provided under the front hood of the vehicle and the other two sets 108b provided in the rear fenders of the vehicle. However  it is also within the scope of invention  that the electric vehicle could include any number of batteries at any desired location without otherwise deterring the indented function of the battery as can be deduced from the description. The battery 108 is configured to store the energy obtained from the AC power supply 102. Further  the controller 112 is configured to control and regulate functioning of other electro mechanical components of the electric vehicle.
[0025] In an embodiment  the controller 112 is configured to regulate functioning of the motor 110  such that the motor 110 receives required energy from the battery 108. In an embodiment  the required energy is determined based on the pressure applied on an accelerator pedal 310 (as shown in fig. 4). Further  the inverter 114 is configured to provide necessary energy conversion to convert the energy obtained from the battery 108 to the type of energy required by the motor 110. In an embodiment  the motor 110 is a three phase AC motor. However  it is also within the scope of invention that the motor 110 could include any other type of motor without otherwise deterring the intended function of the motor 110 as can be deduced from this description. In an embodiment  the controller 112 includes an input peripheral  an output peripheral and a programmable interface. The input peripheral is provided in communication with the accelerator pedal 310 and motor 110. The output peripheral is provided in communication with inverter 114 and battery 108. Further  the programmable interface is configured to receive information regarding pressure applied on the accelerator pedal 310 by a user and type of energy required by the motor 110. Furthermore  the programmable interface is configured to regulate functioning of the inverter 114 and battery 108 based on the information received from the motor 110 and accelerator pedal 310 in order to supply required amount and type of energy to the motor 110.
[0026] In an embodiment  the intelligent power handler 116 is configured to manage the power supplied to the battery 108 and the power utilized from the battery 108. The intelligent power handler 116 acts as a power controller and is provided in communication with an energy sensor (not shown) and an alarm device (not shown). The energy sensor is configured to determine the state of energy in the battery 108. Further  the intelligent power handler 116 receives information regarding the state of energy from the energy sensor and regulates the functioning of at least one of the battery 108 and the alarm device accordingly. In an embodiment  if energy available in the battery 108 is below the optimum energy level that is required for the efficient usage of at least one of the battery and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to connect the battery 108 with the power supply 102. Further  if energy available in the battery 108 is above the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to disconnect the battery 108 from the power supply 102. In another embodiment  the intelligent power handler 106 is configured to connect and disconnect the battery 108 from the power supply 102 automatically based on the information regarding the state of energy. In one embodiment  the intelligent power handler 116 is provided in communication with a power outlet 120 via an onboard inverter 118. Further  the intelligent power handler 116 is configured to channelize at least one of the excess power supplied to the battery and the excess power available in the battery to the power outlet 120 via an on-board inverter 118. In one embodiment  the power outlet 120 is an AC power outlet. Further  the intelligent power handler 116 could be configured to regulate the functioning of the on-board inverter 118 to convert the energy received from battery 108 into the energy required by the power outlet 120. Further  the energy supplied to the power outlet could be stored and utilized for several other purposes such as powering infotainment systems  powering other electro mechanical systems.
[0027] In another embodiment  renewable resource 104 is configured to provide power supply to the battery 108 of the electric vehicle. Further  the renewable resource 104 is selected from at least one of wind power  hydro power  solar energy  bio mass  bio fuel and geothermal energy. However  it is also within the scope of the invention that the renewable resource 104 could be selected from any other type of energy sources that are naturally replenished. In an embodiment  the energy resource 104 is selected from a wind power. Further  the energy from energy resource 104 is supplied to charge the battery 108 via the intelligent power handler 116. The intelligent power handler 116 is configured to provide necessary energy conversion to convert the energy obtained from the energy resource 104 to the type of energy that could be stored in battery 108. The battery 108 is configured to store the energy obtained from the energy resource 104. The controller 112 is configured to regulate functioning of other electro mechanical components of the electric vehicle.
[0028] In an embodiment  the controller 112 is configured to regulate functioning of the motor 110  such that motor 110 receives required energy from the battery 108. In an embodiment  the required energy is determined based on the pressure applied on an accelerator pedal 310. Further  the inverter 114 is configured to provide necessary energy conversion to convert the energy obtained from the battery 108 to the type of energy required by motor 108. In an embodiment  the controller 112 includes an input peripheral  an output peripheral and a programmable interface. The input peripheral is provided in communication with the accelerator pedal 310 and motor 110. The output peripheral is provided in communication with inverter 114 and battery 108. Further  the programmable interface is configured to receive information regarding pressure applied on the accelerator pedal 310 by a user and type of energy required by the motor 110. Furthermore  the programmable interface is configured to regulate functioning of the inverter 114 and battery 108 based on the information received from the motor 110 and accelerator pedal 310 in order to supply required amount and type of energy to the motor 110.
[0029] In an embodiment  the intelligent power handler 116 is configured to manage the power supplied to battery 108 and the power utilized from the battery 108. The intelligent power handler 116 acts as a power controller and is provided in communication with an energy sensor and an alarm device (not shown). The energy sensor is configured to determine the state of energy in the battery 108. Further  the intelligent power handler 116 receives information regarding the state of energy from the energy sensor and regulates the functioning of at least one of battery 108 and the alarm device accordingly. In an embodiment  if energy available in the battery 108 is below the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to connect the battery 108 to the energy resource 104. Further  if energy available in the battery 108 is above the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to disconnect the battery 108 from the energy resource 104. In another embodiment  the intelligent power handler 116 is configured to connect and disconnect the battery 108 from the renewable resource 104 automatically based on the information regarding the state of energy. In one embodiment  the intelligent power handler 116 is provided in communication with a power outlet 120 via an onboard inverter 118. Further  the intelligent power handler 116 is configured to channelize at least one of the excess power supplied to the battery and the excess power available in the battery to the power outlet 120 via an on-board inverter 118. Further  the intelligent power handler 116 could be configured to regulate the functioning of the on-board inverter 118 to convert the energy received from battery 108 into the energy required by the power outlet 120. Further  the energy supplied to the power outlet could be stored and utilized for several other purposes such as powering infotainment systems  powering other electro mechanical systems.
[0030] In another embodiment  productivity enhancer 106 is configured to provide power supply to the battery 108 of the electric vehicle. The productivity enhancer 106 is selected from a generator powered by an engine that is capable of generating optimum voltage required for running the motor 110. However  it is also within the scope of invention that the productivity enhancer 106 could be selected from any other type of devices that could generate electricity during power starved scenarios  without otherwise deterring the intended function of the productivity enhancer 106 as can be deduced from this description. Further  the energy from energy resource 104 is supplied to charge the battery 108 via the intelligent power handler 116. The intelligent power handler 116 is configured to provide necessary energy conversion to convert the energy obtained from productivity enhancer 106 to the type of energy that could be stored in battery 108. The battery 108 is configured to store the energy obtained from the energy resource 104. The controller 112 is configured to regulate functioning of other electro mechanical components of the electric vehicle.
[0031] In an embodiment  the controller 112 is configured to regulate functioning of the motor 110  such that motor 110 receives required energy from the battery 108. In an embodiment  the required energy is determined based on the pressure applied on an accelerator pedal 310. Further  the inverter 114 is configured to provide necessary energy conversion to convert the energy obtained from the battery 108 to the type of energy required by motor 108. In an embodiment  the controller 112 includes an input peripheral  an output peripheral and a programmable interface. The input peripheral is provided in communication with the accelerator pedal 310 and motor 110. The output peripheral is provided in communication with inverter 114 and battery 108. Further  the programmable interface is configured to receive information regarding pressure applied on the accelerator pedal 310 by a user and type of energy required by the motor 110. Furthermore  the programmable interface is configured to regulate functioning of the inverter 114 and battery 108 based on the information received from the motor 110 and accelerator pedal in order to supply required amount and type of energy to the motor 110.
[0032] In an embodiment  the intelligent power handler 116 is configured manage the power supplied to battery 108 and the power utilized from the battery 108. The intelligent power handler 116 acts as a power controller and provided in communication with an energy sensor and an alarm device (not shown). The energy sensor is configured to determine the state of energy in the battery 108. Further  the intelligent power handler 116 receives information regarding the state of energy from the energy sensor and regulates the functioning of at least one of battery 108 and the alarm device accordingly. In an embodiment  if energy available in the battery 108 is below the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to connect the battery 108 to the energy resource 104. Further  if energy available in the battery 108 is above the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to disconnect the battery 108 from the productivity enhancer 106. In another embodiment  the intelligent power handler 116 is configured to connect and disconnect the battery 108 from the productivity enhancer 106 automatically based on the information regarding state of energy. In one embodiment  the intelligent power handler 116 is provided in communication with a power outlet 120 via an onboard inverter 118. Further  the intelligent power handler 116 is configured to channelize at least one of the excess power supplied to the battery and the excess power available in the battery to the power outlet 120 via an on-board inverter 118. Further  the intelligent power handler 116 could be configured to regulate the functioning of the on-board inverter 118 to convert the energy received from battery 108 into the energy required by the power outlet 120. Further  the energy supplied to the power outlet could be stored and utilized for several other purposes such as powering infotainment systems  powering other electro mechanical systems in car and so on.
[0033] Fig. 2 is a block diagram depicting architecture 200 of the electric vehicle that enables multi speed transmission according to an embodiment of the present invention. In an embodiment  the electric vehicle further includes a clutch assembly 202 and a gear box assembly 204 that are configured to provide multi speed transmission to the electric vehicle. The clutch assembly 202 is configured to transmit the mechanical energy generated by the motor 110 to the gear box assembly 204. Further  the gear box assembly 204 is configured to provide multiple speeds to the wheels 126. In an embodiment  the gearbox assembly 204 is controlled manually using plurality of gear levers 310 (as shown in fig. 7). Fig. 3 shows a power train layout in a portion of the electric vehicle 300 that includes clutch assembly 202 and gear box assembly 204 according to an embodiment of the present invention. The clutch assembly 202 further includes clutch plate 302 provided inside a clutch housing 304  clutch release bearing 306 and a flywheel 308. Further  the gear box assembly 204 includes plurality of gear shift levers 310  gear train 312  guided input shaft 314 and plurality of differential gears 316. The electric motor 110 includes electric motor shaft 318 and a driving pulley 320. The electric vehicle 300 further includes a hydraulic pump 322 (as shown in fig. 7) having a driven pulley 324.
[0034] The electric vehicle 300 is propelled by the electric motor 110. The clutch plate 302 is configured to receive the mechanical energy generated by the motor 110. In an embodiment  the clutch plate 302 is selected from a single plate  dry friction clutch. However  it is also within the scope of invention that the clutch plate 302 could be selected from any other type of clutch plate without otherwise deterring intended function of the clutch plate as can be deduced from this description. The electric motor shaft 318 is connected to a flywheel 308 by using a lock nut and a tab lock washer 322 or suitable means. Further  the power take off for the hydraulic pump 322 is enabled by means of a belt passing over a driving pulley 320 and the driven pulley 324. In an embodiment  the belt exits the clutch housing 304 through an oblong slot provided for this purpose on the outer surface of the clutch housing 304. Further  the clutch assembly 302 drives the guided input shaft 314 provided in the gear box assembly 204. The gear train 312 is configured to provide multiple speed variation and torque multiplication. In an embodiment  the gear selection or speed variation is effected by two gear shift levers 310  by which the operating torque speed envelope of the motor is enhanced  enabling significant downsizing of the electric motor 110. The power delivered by the electric motor shaft 318 is transferred to the wheels 126 by plurality of differential gears 316.
[0035] Fig. 4 depicts the side view of the electric vehicle 300 according to an embodiment  of the present invention. The electric vehicle 300 further includes a rear -power take off 326 and DC-DC converter 119. The rear power take off 326 is configured to deliver necessary power to the accessories attached to the electric vehicle 300. In an embodiment  the accessories include farming implements. Further  power delivered by the rear power take off 326 to the farming implements could be adjusted by plurality of levers 330. In an embodiment  sets of battery 108b are used as on-board energy storage. Further  the on-board energy storage 108bis configured to receive the excess power from the battery 108a  by intelligent power handler 116. Further  the excess power is stored in on-board energy storage 108b and transferred to the necessary applications by at least one of DC-DC converter 119 and the on-board inverter (not shown). In an embodiment  the DC-DC converter 119 is configured to transfer the energy stored in on-board energy storage 108b to the applications that require DC power. Further  the on-board inverter is configured to transfer the energy stored in on-board energy storage 108b to the applications that require AC power. The arrangement of battery pack enables the even distribution of battery mass over the vehicle structures  thereby eliminates the need of additional weight. However  it is also within the scope of invention that the any number of batteries could be used and arranged at desired location without otherwise deterring the intended function of the battery as could be deduced from this description. In an embodiment  the necessary power is determined by the pressure applied on the accelerator pedal 310. The accelerator pedal 310 is connected to an electronic throttle 332. The driver input at the accelerator pedal 310 is converted into a current demand by the controller 112.
[0036] It should be noted that the aforementioned configuration of electric vehicle 300 is provided for the ease of understanding of the embodiments of the invention. However  certain embodiments may have a different configuration of the components of the electric vehicle 300 and certain other embodiments may exclude certain components of the system 300. Therefore  such embodiments and any modification by addition or exclusion of certain components of the electric vehicle 300 without otherwise deterring the intended function of the electric vehicle 300 as is apparent from this description and drawings are also within the scope of this invention.
[0037] A method for propelling an electric vehicle such as electric tractor by a plurality of energy sources is explained herein below. Fig. 5 is a flowchart depicting the method according to an embodiment of the present invention. The method includes a providing plurality of energy sources. In an embodiment  the energy source is selected from at least one of power supply 102  renewable resource 104 and productivity enhancer 106 as a power source (step 402). The power generated by plurality of energy source is transferred to the battery 108 and by the intelligent power handler 116. The intelligent power handler 116 is configured to provide necessary energy conversion to convert the energy obtained from the power source to the type of energy that could be stored in battery 108 (step 404). Further  the intelligent power handler 116 is configured manage the power supplied to battery 108 and the power utilized from the battery 108. The intelligent power handler 116 acts as a power controller and provided in communication with an energy sensor (not shown) and an alarm device (not shown). The energy sensor determines the state of energy in the battery 108 (step 406). Further  the intelligent power handler 116 receives information regarding the state of energy from the energy sensor and regulates the functioning of at least one of battery 108 and the alarm device accordingly. In an embodiment  if energy available in the battery 108 is below the optimum energy level that is required for the efficient usage of at least one of the battery 108 and the electric vehicle  the intelligent power handler 116 regulates functioning of the alarm device to alert the user of electric vehicle to connect the battery 108 with the energy sources  thereby charging the battery 108 (step 408). Further  if energy available in the battery 108 is above the optimum energy level that is required for the efficient usage of at least one of the battery and the electric vehicle  the intelligent power handler 116 regulates the functioning of the alarm device to alert the user of electric vehicle to disconnect the battery 108 from the energy sources. In another embodiment  the intelligent power handler 106 is configured to connect and disconnect the battery 108 from the power supply 102 automatically based on the information regarding state of energy. In one embodiment  the intelligent power handler 116 is provided in communication with a power outlet 120 via an onboard inverter. Further  the intelligent power handler 116 is configured to channelize at least one of the excess power supplied to the battery and the excess power available in the battery to the on-board energy storage 108b via an on-board inverter (step 410). Fig. 6 is a bock diagram depicting the intelligent power handler according to an embodiment of the present invention. The power delivered to the on-board energy storage 108b is supplied to at least one of applications that require AC power and applications that require DC power by using on-board inverter and DC-DC converter 119 respectively.
[0038] Further  motor 110 receives desired amount of energy from battery 108 (step 412). The desired amount of energy required by the motor 110 is determined by the pressure applied on the accelerator pedal. In an embodiment  the inverter 114 is configured to provide necessary energy conversion to convert the energy obtained from the battery 108 to the type of energy required by motor 110. Further  the energy delivered to the motor 110 generates motive force. The motive force is transferred to the wheels 126 by using a clutch assembly 202 and gear box assembly 204 (step 416). The clutch assembly 202 and gear box assembly 204 enables multispeed transmission of motive force generated by the motor 110 to the wheels 126 (step 414).
[0039] It should be noted that the aforementioned steps for providing an electric vehicle such as electric tractor that could be propelled by plurality of energy sources are provided for the ease of understanding of the embodiments of the invention. However  various steps provided in the above method may be performed in the order presented  in a different order  or simultaneously. Further  in some embodiments  one or more steps listed in the above method may be omitted. Therefore  such embodiments and any modification that is apparent from this description and drawings are also within the scope of this invention.
[0040] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can  by applying current knowledge  readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept  and  therefore  such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore  while the embodiments herein have been described in terms of preferred embodiments  those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

CLAIMS
We claim:
1. A vehicle propelled by a motor  said vehicle comprising:
plurality of energy sources selected from at least one of AC power supply  renewable resources and productivity enhancer;
at least one battery configured to receive energy from said plurality of energy sources; and
an intelligent power handler configured to regulate functioning of at least one of said battery and said plurality of energy sources 
wherein
said intelligent power handler is configured to covert the type of energy generated by said plurality of energy sources into the type of energy desired for said battery.

2. The vehicle as claimed in claim 1  wherein said vehicle further comprises:
a controller that is configured to deliver a desired amount of energy to said motor; and
an inverter that is configured to convert the type of energy from said battery to the type of energy that is desired for said motor.

3. The vehicle as claimed in claim 1  wherein
said power supply is a three phase AC main supply; and
said battery is configured to receive energy generated by said power supply by means of a cable mounted on said vehicle.

4. The vehicle as claimed in claim 1  wherein said renewable resource is at least one of wind power  hydro power  solar energy  bio mass  bio fuel and geothermal energy.

5. The vehicle as claimed in claim 1  wherein said productivity enhancer is a generator that is capable for generating nominal voltage required for activating said motor.

6. An intelligent power handler provided for use in a vehicle propelled by a motor  said intelligent power handler comprising:
an energy sensor that is configured to determine state of charge of a battery;
an alarm device that is configured to alert the user of said vehicle regarding said state of charge of battery 
wherein
said intelligent power handler is configured to enable transfer of energy from said battery to at least one of said battery and other accessories attached to said vehicle  if said state of charge of battery is greater than an optimum level of energy for battery; and
said intelligent power handler is configured to enable transfer of energy from said plurality of energy sources to said battery  if said state of charge of battery is lesser than the optimum level of energy for battery  thereby ensuring minimum energy discharge for mobility of said vehicle.

7. The intelligent power handler as claimed in claim 6 further comprises of:
a power outlet; and
at least one of on-board inverter and DC-DC converter that are configured to convert the type of energy supplied to said power outlet to the type of energy that is required by said power outlet  wherein
said intelligent power handler is configured to enable transfer of energy from said battery to said power outlet  if said state of charge of the battery is greater than or equal to an optimum level of energy for battery.

8. The vehicle as claimed in claim 1  wherein said vehicle further comprises of:
a clutch plate assembly provided in communication with said motor; and
a gear box assembly provided in communication with said clutch plate assembly and wheels of said vehicle  wherein
said gear box assembly is configured to enable multispeed transmission of a motive force generated by said motor to wheels of said vehicle.

9. A method of providing plurality of energy sources for a vehicle propelled by a motor  said method comprising:
providing plurality of energy sources selected from at least one of power supply  renewable resources and productivity enhancer;
enabling energy conversion to convert the type of energy generated by said energy sources to the type of energy desired for a battery.
determining state of charge of said battery; and
enabling transfer of energy from energy sources to at least one of battery and on-board power outlet  wherein
said enabling transfer of energy from energy sources to at least one of said battery and said on-board power outlet is based on the state of charge of said battery.

10. A method as claimed in claim 9  said enabling transfer of energy from energy sources to on-board power outlet further comprises a process of energy conversion to convert the type of energy generated by said energy sources to the type of energy desired for said on-board power outlet.

11. A method as claimed in claim 9 further comprises the process of providing multispeed transmission of motive force generated by said motor to wheels of said vehicle.

Date 1st June  2012 Signature
Dr. Kalyan Chakravarthy
Patent Agent
ABSTRACT

An electric vehicle that is adapted to receive energy from a plurality of energy sources. The electric vehicle includes plurality of energy sources selected from at least one of AC power supply  renewable resources and productivity enhancer  a battery configured to receive energy from plurality of energy sources and an intelligent power handler configured to regulate functioning of at least one of battery and plurality of energy sources. Further  the intelligent power handler is configured to convert the type of energy generated by plurality of energy sources into the type of energy desired for battery.