FORM-2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
SYSTEM AND METHOD FOR DETERMINING DISTANCE TO EMPTY FUEL
MAHINDRA TWO WHEELERS LIMITED
an Indian Company
of D-l block, Plot no. 18/2, Chinchwad,
Pune - 411 019, Maharashtra, India
Inventors:
l.GANESANANAND
2. KUMAR HITENDRA
3. JASTIKIRAN KUMAR
4. SUNDARAM SUDARSHAN
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF DISCLOSURE
The present disclosure relates to a system and method for determining distance to empty fuel inside a carburetor based two wheeler vehicles.
BACKGROUND
A distance to empty indicator is used to indicate the probable distance that is covered by a vehicle using the fuel remaining in the tank. Conventionally, apparatus to determine distance to empty has two units, namely a sensing unit and an indicating unit. The sensing unit usually uses a float connected to a potentiometer. With the decreasing fuel level in the tank, the float drops and slides a moving contact along a resistor, thereby increasing the resistance of resistors. Meanwhile, the indicator unit measures and displays the amount of electrical current flowing through the sensing unit. When the tank fuel level is high, maximum current flows and the needle points to "F" indicating a full tank. When the tank is empty, least current flows, the needle points to "E" indicating an empty tank. Fuel indicators of such type have low accuracy; therefore driver of the vehicle does not get exact information about the volume of fuel remaining in the fuel tank of the vehicle. However, the existing fuel indicator does not provide any information about the distance that can be covered using the fuel remaining in the fuel tank.
Therefore, there is felt a need to provide a system for determining distance to empty fuel inside a vehicle that works effectively and provides a driver with real-time information about the distance (number of kilometers) that can be covered by the vehicle using the fuel remaining in the fuel tank. There is also felt a need to provide a system for determining distance to empty fuel inside a vehicle that is reliable and cost effective.

OBJECTS
Some of the objects of the system of the present disclosure which at least one embodiment herein satisfies are as follows:
It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.
An object of the present disclosure is to provide a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that indicates a driver with real-time information about distance a vehicle can travel using fuel remaining in the fuel tank of the vehicle.
Yet another object of the present disclosure is to provide a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that can be retrofit into the existing vehicular mechanism.
An additional object of the present disclosure h to provide a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that takes its input from at least the fuel level sensing unit or odometer to provide an accurate display of the distance to empty.
Still another object of the present disclosure is to provide a cost effective system for determining distance to empty fuel inside a carburetor based two wheeler vehicle.
An object of the present disclosure is to provide a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that is accurate and reliable.

Other objects and advantages of the system of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying Figures, which are not intended to limit the scope of the present disclosure.
SUMMARY
A system for determining distance to empty fuel inside a carburetor based two wheeler vehicle in accordance with an embodiment is disclosed. The system for determining distance to empty fuel inside a carburetor based two wheeler vehicle includes at least fuel measuring unit, a processor and an indicating unit. The at least fuel measuring unit is for measuring fuel inside a fuel tank. The processor is functionally coupled to the fuel measuring unit and adapted calculate distance to empty fuel inside the vehicle based on data relating to the fuel tank. The indicating unit is functionally coupled to the processor and adapted to indicate the distance determined by the processor.
Additionally, the system for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes a distance measuring unit to measure a distance travelled by the vehicle.
In one embodiment, the system for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes a vehicle speed measuring unit functionally coupled to said processor for measuring speed of said two wheeler vehicle.
Typically, the system for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes a revolution per minute (rpm)

measuring unit functionally coupled to the processor for measuring revolutions per minute (rpm) of an engine of the two wheeler vehicle.
In one embodiment, the system for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes further includes a flowmeter functionally coupled to the processor for measuring fuel flowing outside the fuel tank.
Typically, the system for determining distance to empty fuel inside a carburetor based two wheeler vehicle further receives at least one of driving patterns of the vehicle, road conditions, life of the vehicle, emission level of the vehicle, serviceability of the vehicle.
A method for determining travel distance of a vehicle includes the steps of receiving input regarding fuel level inside a fuel tank, comparing data relating to the fuel level travelled by the vehicle, calculating distance to empty fuel inside the vehicle based on data relating to the fuel tank and indicating the determined
distance.
Typically, the method for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes a step of receiving input regarding distance travelled by the vehicle.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
The disclosure will now be explained in relation to the accompanying drawing, in which:

Figure 1 illustrates a schematic representation of a system for determining distance to empty fuel inside a carburetor based two wheeler vehicles, in accordance with the present disclosure;
Figure 2 illustrates a flowchart that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, in accordance with one embodiment of the present disclosure;
Figure 3 illustrates a flowchart that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, in accordance with another embodiment of the present disclosure;
Figure 4 illustrates a flowchart that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, in accordance with another embodiment of the present disclosure;
Figure 5 illustrates a flowchart that monitors and determines at least a distance of an odometer and thereby determine a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank; and
Figure 6 illustrates a flowchart that illustrates a processor methodology for determining a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank.
DETAILED DESCRIPTION
The disclosure will now be described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments 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. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
A method for determining distance to empty fuel inside a carburetor based two wheeler vehicle in accordance with the present disclosure provides a driver with real-time information about the distance (number of kilometers) that can be covered by the vehicle using the fuel remaining in the fuel tank. The A method for determining distance to empty fuel inside a carburetor based two wheeler vehicle of the present disclosure provides a distance to empty indicator is reliable and cost effective.
Figure 1 illustrates a schematic representation of the system 100 for determining distance to empty fuel inside a carburetor based two wheeler vehicle. The system 100 for determining distance to empty fuel inside a carburetor based two wheeler vehicle includes at least one fuel measuring unit 110, a processor/ control unit 120 and a distance indicating unit 130. The at least one fuel measuring unit 110 is for measuring fuel inside a fuel tank. Typically, the fuel measuring unit 110 measures the fuel level at sixteen segments of fuel level, eighteen segments of fuel level and thirty two segments of fuel level wherein the sixteen segments of fuel level and the eighteen segments of fuel level depicts the reserve capacity of the fuel tank and the thirty two segment fuel level depicts the entire fuel tank.

The processor/control unit 120 is functionally coupled to the fuel measuring unit 110 and is adapted to compare data relating to the fuel level and the distance travelled by the two-wheeler and calculate distance to empty fuel inside the vehicle based on data relating to the fuel tank.
The indicating unit 130 is functionally coupled to the processor and adapted to indicate the distance determined by the processor.
Typically, the system 100 further includes further comprising a distance measuring unit to measure a distance travelled by the vehicle. In one embodiment, the system 100 additionally includes vehicle speed measuring unit that is functionally coupled to the processor for measuring speed of the two wheeler vehicle. Typically, the system 100 additionally includes a revolution per minute (rpm) measuring unit functionally coupled to the processor for measuring revolutions per minute (rpm) of an engine of the two wheeler vehicle. Typically, the inputs received by the fuel measuring unit 110 are measured in at least one of a reserve mode of the vehicle, a completely filled fuel level mode of the vehicle and a partially filled fuel level mode of the vehicle. In one embodiment, the system 100 further receives at least one of driving patterns of the vehicle, road conditions, life of the vehicle, emission level of the vehicle, serviceability of the vehicle.
The system 100 further includes a flow-meter functionally coupled to the processor for measuring fuel flowing outside the fuel tank. The system 100 further receives inputs regarding at least one of driving patterns of the vehicle, road conditions, life of the vehicle, emission level of the vehicle, serviceability of the vehicle and based on previous data of the fuel average.
In accordance with one embodiment of present disclosure, Figure 2 illustrates a flowchart 200 that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, wherein Dl is the distance travelled

by vehicle in and fuel consumption, typically, of 100ml, XI is a temporary variable of an Odometer value before fuel consumption, typically, of 100ml , X2 is a temporary variable of an Odometer value after fuel consumption, typically, of 100ml, and Fl is a temporary variable of fuel value.
In accordance with another embodiment of present disclosure, Figure 3 illustrates a flowchart 300 that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, wherein Dl is the distance travelled by vehicle in and fuel consumption, typically, of 100ml, ROW DTE is the runtime calculated DTE.
In accordance with yet another embodiment of present disclosure, Figure 4 illustrates a flowchart 400 that determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank,
In accordance with one embodiment of the present disclosure, Figure 5 illustrates a flowchart 500 that monitors and determines at least a distance of an odometer and thereby determines a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank.
In accordance with one embodiment of present disclosure, Figure 6 illustrates a flowchart 600 that; illustrates a processor methodology for determining a distance that can be covered by the vehicle with respect to fuel remaining in the fuel tank, wherein sample counter counts the total number of sample within damping time interval.
A method for determining travel distance of a vehicle includes the steps of receiving input regarding fuel level inside a fuel tank, receiving input regarding

distance travelled by the vehicle, comparing data relating to the fuel level and the distance travelled by the vehicle; calculating distance to empty fuel inside the vehicle based on data relating to the fuel tank and displaying the determined distance.
Typically, the method for determining distance to empty fuel inside a carburetor based two wheeler vehicle further includes a step of receiving input regarding distance travelled by the vehicle.
TECHNICAL ADVANCEMENTS AND ECONOMIC SIGNIFICANCE
A method for determining distance to empty fuel inside a carburetor based two wheeler vehicle in accordance with the present disclosure has several technical advantages including but not limited to the realization of:
• providing a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that indicates a driver with realtime information about distance a vehicle can travel using fuel remaining in the fuel tank of the vehicle;
• providing a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that can be retrofit into the existing vehicular mechanism;
• providing a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle that takes its input from at least the fuel level sensing unit or odometer to provide an accurate display of the distance to empty;
• providing a cost effective a system for determining distance to empty fuel inside a carburetor based two wheeler vehicle; and
• providing a system for determining distance to empty fueJ inside a carburetor based two wheeler vehicle that is accurate and reliable.

The numerical values given of various physical parameters, dimensions and quantities are only approximate values and it is envisaged that the values higher or lower than the numerical value assigned to the physical parameters, dimensions and quantities fall within the scope of the disclosure and the claims unless there is a statement in the specification to the contrary.
Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression "at least" or "at least one" suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.

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.

We Claim:
1) A system for determining distance to empty fuel inside a carburetor based
two wheeler vehicle, said system comprising:
• at least one fuel measuring unit for measuring fuel inside a fuel tank;
• a processor functionally coupled to said fuel measuring unit and adapted to calculate distance to empty fuel inside said vehicle based on data relating to said fuel tank; and
• an indicating unit functionally coupled to said processor and adapted to indicate said distance determined by said processor.

2) The system for determining distance to empty fuel as claimed in inside a carburetor based two wheeler vehicle claim 1, further comprising a distance measuring unit to measure a distance travelled by said vehicle.
3) The system for determining distance to empty fuel as claimed in inside a carburetor based two wheeler vehicle claim 1, further comprising a vehicle speed measuring unit functionally coupled to said processor for measuring speed of said two wheeler vehicle.
4) The system for determining distance to empty fuel inside a carburetor based two wheeler vehicle as claimed in claim 1, further comprising a revolution per minute (rpm) measuring unit functionally coupled to said processor for measuring revolutions per minute (rpm) of an engine of said two wheeler vehicle.
5) The system for determining distance to empty fuel inside a carburetor based two wheeler vehicle as claimed in claim 1, further comprising a

flow-meter functionally coupled to said processor for measuring fuel flowing outside said fuel tank.
6) The system for determining distance to empty fuel inside a carburetor based two wheeler vehicle as claimed in claim 1, wherein said system further receives inputs regarding at least one of driving patterns of said vehicle, road conditions, life of said vehicle, emission level of said vehicle, serviceability of said vehicle.
7) A method for determining distance to empty fuel inside a carburetor based two wheeler vehicle, said method comprising the steps of:

• receiving input regarding fuel level inside a fuel tank;
• comparing data relating to said fuel level travelled by said vehicle;
• calculating distance to empty fuel inside said vehicle based on data relating to said fuel tank; and
• indicating said determined distance.
8) A method for determining distance to empty fuel inside a carburetor
based two wheeler vehicle as claimed in claim 7, further includes a step
of receiving input regarding distance travelled by said vehicle.