FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
AND
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
See section 10; Rule 13)
TITLE OF THE NVENTION
"SYSTEM AND METHOD FOR GENERATING USER DEFINED PROPORTIONAL ASSISTANCE FORCE FOR BRAKING A VEHICLE"
APPLICANT(S)
TATA MOTORS LIMTED
an Indian company having its registered office at
Bombay House, 24 Homi Mody Street,
Hutatma Chowk, Mumbai 400 001,
Maharashtra, India
PREAMBLE TO THE DESCRIPTION
The following specification partcularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD OF THE INVENTION
The present subject matter is related in general to braking systems implemented in a vehicle, more particularly, but not exclusively the present subject matter relates o generating user defined proporonal asstance force for braking a vehicle.
BACKGROUND OF THE NVENTION
Conventional hydraulic braking systems comprise a brake pedal, brake booster, tandem master cylinder, hydraulic lines and brake assembly present at the wheel end. The brake assembly may be drum brakes or calliper brakes. In the hydraulic systems, the function of the brake booster is to provide an assisive force at the brake pedal so as to minimize the braking effort to be made by he user thereby creating a better drveability and control durng drving.
The conventional braking systems comprises a vacuum pump which is connected to a vacuum booster for providing he assistive force to the brake pedal. The assistance required in the braking system s completely dependent on the assembly of the vacuum pump and the vacuum booster. Therefore, there is a need for constant watch and servicing of the vacuum pump along wih the vacuum booser assembly.
Further to the dependency, the usage of the vacuum pump and the vacuum booster adds additional cost to the conventonal assisive braking systems. The aforementioned assistive braking system cannot be further changed based on the user requirements. The assistance force is generated on the capability of the vacuum generated by vacuum booster and hus he asstance orce cannot be proporonately varied and contoled.
The conventional braking system lacks the proviion of the type of assistance equired by the user or the driver. The type of assistance required varies fom user o user The absence of the proporonal contol over the assance force results in

the dicomfort of the user as they experience the unwanted assistance. There is definitely a requirement of the selection of asstance force which the driver or the user needs whie operating the brakes.
There is felt a need for a braking system which can provide proportional assstance at the brake pedal for better user ergonomics wherein he user can defne he assisance to be provided.
The information disclosed in this background of the disclosure section is only for enhancement of understanding of the general background of the inventon and hould not be taken as an acknowledgement or any form of suggestion that this nformation forms the pror art already known to a person skied in the ar
BRIEF SUMMARY OF THE NVENTION
In an embodiment the present disclosure relates to a system for generating an assistive force during braking operation of a vehicle. The system may comprie a brake pedal connected to a piston aligned within an assistance cylinder via a piston rod. The system may further comprise a tandem master cylinder connected to he piston of the assistance cylinder via a push rod. The system may furher comprise a control fluid circuit enabled to exchange fluid between a power steering fluid circuit and he assistance cylinder. The system may further comprise an input-output interface enabled to receive inputs from a user for a type of assistance out of the plurality of types of assistance required while braking the vehicle. The system may further comprise a procesing unit communicatively coupled to one or more units and circuits of the system and enabled to provide the type of assistance for braking as defined by the user by generating the asistive force wherein the assstive force is generated and varied proportionally based on the predefined parameters processed in relation to the type of assance required for braking operation.

In an embodiment, the present disclosure relates to a method of assisting a user for braking operation by generating an assistive force at the brake pedal. The method may comprise the step of determning, by a processing unit, diplacement of the brake pedal. The method may further comprise the step of receiving, by the processing unit, the type of assistance required by user for the braking the vehicle. The method may comprise the step of actuating, by a processing unit, a priority flow control valve to transfer proportional amount of fuid from a power seering circuit to a proportional pressure relief valve based on the type of assistance required by the user. The method may comprise the step of controlling, by a processing unit pressure and flow of fluid based on requirement of the type of assistive force set by the user through the proportional pressure relief valve and a proportional flow regulating valve. The method may comprise the step of transferring, by he processing unit, the proportional amount of controlled pressurized fluid flow to an assistance cylinder thereby generative the predefined assisve force at the brake pedal for braking operation of the vehicle.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by eference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWNGS^
The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together wih the descrption, erve to explain the disclosed prnciples. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number frst appears. The same numbers are used throughout the igures to reference like features and components. Some embodiments of system and/or methods in accordance with embodiments of the present subject matter are now described, by way of example only, and regarding the accompanying fgures, in which:

Figure 1 shows an exemplary schematic layout of an assistive braking system 100 enabled to provide a proportional user defined braking assistance by generating the predefined assisve force, in accordance wih an embodiment of the present subject matter
Figure 2 shows an exemplary schematic lowchart depicting a method 200 for selection of a mode of braking assistance required by the user from the assistive braking sysem 100, in accordance wih an embodiment of the present subject matter
Figure 3 shows an exemplary schematic flowchart depicting a method 300 for operation of the system 100 for providing braking assance, in accordance wih an embodiment of the present subject matter
Figure 4 shows an exemplary schematic graph of brake pedal effort required fom the user at the brake pedal with respect to the brake pedal displacement at multple modes
Figure 5 shows an exemplary schematic graph of assistance force provide by the ysem 100 wih respect to the brake pedal diplacement at multple modes.
t should be appreciated by those skilled in the art that any block diagrams herein represent conceptual views of ilustrative systems embodying the principles of the present subject matter Similarly, it will be appreciated hat any low charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes which may be substantially represented in computer readable medium and executed by a computer or processor whether such computer or procesor is explcity shown.

DETAILED DESCRIPTION OF THE NVENTION
In the present document, the word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or implementation of the present subject matter described herein as "exemplary" is not necessariy o be consued as preferred or advantageous over other embodiment
While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalent and alternative fallng wihin he spirt and the scope of the disclosure.
The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device, or method that comprises a list of components or steps does not include only those components or teps but may include other components or steps not expressly listed or inherent to such setup or device or method. In other words, one or more elements in a system or apparatus proceeded by "comprises... a" does not, without more consraints, preclude the exience of other elements or additonal elements in he sysem or method.
The terms "includes", "including", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device, or method that includes a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or device or method. In other words, one or more elements in a system or apparatus proceeded by "includes... a" does not, without more constraints, preclude he exience of other elements or additonal elements in the sysem or method.

n the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail
o enable those skilled in the art to practice the disclosure, and it is to be undertood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The olowing descripton
herefore, not to be taken in a lmng sense.
Present disclosure relates to a system and method of generating assistance forces while braking a vehicle wherein the type of assistance forces is selected by the user. The system is enabled to receive inputs from the user for the requirement of the type or the pattern of braking assistance required by the user. Based on the type of assistance received, the system s enabled to adjust the parameters of the components which are responsible for the generating the assistive force for braking. The type of assistance may comprise, but are not lmited to, constant pedal effort, ncreasing pedal effort and decreasing pedal effort. The system is further enabled to provide the asistance for braking at the pedal diplacement which the user has pre-et in the sysem via inputoutput interace.
Figure 1 shows an exemplary schematic layout of an assstive braking system 100 enabled to provide a proportional user defined braking assistance by generating the predefined assisve force, in accordance wih an embodiment of the present subject matter
The assistive braking system 100 further discloses a power steering fuid circuit 101 in connection with an assistance cylinder 102 via a control fluid circuit 103. In an embodiment, the power seering fluid circuit 101 comprises a steering oil reservoir 104, a pump 105 and a prority flow control valve 106 and power steering gear box assembly 107. The control fluid circuit 103 contains the fluid which is used for actuating the power steering gear box asembly 107. The pump 105 s enabled to

generate pressurized fluid in the power steering fluid circuit 101. The priority flow control valve 106 is enabled to distribute fluid in the power steering fluid circuit 101 and the control fuid circuit 103. In an embodiment the pump 105 may be a hydraulic pump.
In an embodiment, control fluid circuit 103 may comprie, but not limiting to, a proportional pressure relief valve 108, a proportional flow regulating valve 109 and a direction control valve 110. The proportional pressure relief valve 108 is enabled to control the pressure to be maintained further in control fluid circuit 103. The proportional flow regulating valve 109 is enabled to maintain the amount of flow to be maintained further in the control fluid circuit 103. The direction control valve 110 is enabled to direct the fow of fuid towards an assistance cylinder 102.
In an embodiment, the assistance cylinder 102 comprise two sections which are defined by a piston 111. The two sections comprise a first section 112 and a second section 113 and are enabled to selectively receive and send fluid from and to the direction control valve 110. The piston 111 is connected to the brake pedal 115 via a piston rod 115 and the pion 111 is further connected to a tandem master cylinder 116 via a push rod 117.
In an embodiment, the processing unit 118 comprises a controller 119 and a memory 120. The processing unit 118 is further connected to an input output interface 121 through which the user may provide his inputs. The controller 119 is connected to the proportional pressure relief valve 108, proportional flow egulating valve 109, direction control valve 110, and a brake pedal displacement sensor 122. The brake pedal displacement sensor 122 is enabled to detect the movement of the brake pedal 114 when presed by the user in a frst direction 123 and in a first direction 124.
Furthermore, a pilot line 125 is connected between a control fluid circuit 103 and a t connection point which s connected o he prory ow contol valve 106,

proportional pressure relief valve 108, proportional flow regulating valve 109. In an embodiment, any pressure or flow surge may aid to transfer fluid from the priory flow control valve 106, proportional pressure relief valve 108, proportional low regulating valve 109 to the control fluid circuit 103 through the pilot lne 125. In another embodiment, a second connection 126 is present between a control fluid circuit 103 and a second connection point 127. The second connection point 127 may be between a second section 126 and the direction contol valve 110.
In one exemplary embodiment, the fluid flow from the proportional flow regulating valve 109 may be controlled by the processing unit 118 based on the rate of pedal displacement signals received fom the brake pedal displacement sensor 122. The processing unit 118 is enabled to determine the rate of displacement of the brake pedal 114 by sgnals receiving fom he brake pedal diplacement sensor 122.
Figure 2 shows an exemplary schematic lowchart depicting a method 200 for selection of a mode of braking assistance required by the user from the assistive braking sysem 100, in accordance wih an embodiment of the present subject matter
In an embodiment, at block 201, the system 100 is enabled to receive the assistance parameters from the input output interface 121. In an embodiment, the input output interface 121 may be in the form of a visual touch based interface, an intelligent voice assistant interface, a switch/button operated digital input interface and the
ike. The user may enter value of pedal diplacement at which the assistance force
s required.
In an embodiment at block 202-A, the user is enabled to select a mode of increasing pedal effort with respect to pedal displacement. In an embodiment, the mode of increasing pedal effort is enabled to provide braking assistance in which the pedal effort increases lnearly or non-linearly. The increasing pedal effort mode is enabled o provide assisve force at the brake pedal 114 on detection of the operation of the

brake pedal 114 at the predefined pedal displacement value. The asistive force is
maximum at the predefined pedal displacement value and decreases linearly or non-
neary on further displacement of the brake pedal 114 in the second diection 124.
In an embodiment at block 202-B, the user is enabled to select a mode of constant pedal effort with respect to pedal displacement In an embodiment, the mode of constant pedal effort is enabled to provide constant increase in braking assistance with respect to pedal displacement. The constant pedal effort mode is enabled to provide assistive force at the brake pedal 114 on detection of the operation of the brake pedal 114 at the predefined pedal displacement value. The assistive force is minimum at the predefined pedal displacement value and increases lineary on urher diplacement of the brake pedal 114 in the second diection 124.
In an embodiment at block 202-C, the user is enabled to select a mode of decreasing pedal effort with respect to pedal displacement. In an embodiment, the mode of decreasing pedal effort is enabled to provide braking assstance in which the pedal effort decreases linearly or non-linearly. The decreasing pedal effort mode is enabled to provide assistive force at the brake pedal 114 on detection of the operation of the brake pedal 114 at the predefined pedal displacement value. The assistive force is minimum at the predefined pedal displacement value and increases linearly or non-lineary on furher diplacement of the brake pedal 114 in the second direction 124.
In an embodiment, the user is enabled to select any one of the modes as described above at block 202-A for increasing pedal efor 202-B or consant pedal efort and 202-C or decreasng pedal efor
At block 203, the controller 119 from the processing unit 118 is enabled to drive
he system 100 as per the mode selected by the user. The controller 119 linked with
the memory 120 of the processing unit 118 s enabled to operate the proportional
pressure relief valve 108, proportonal fow egulating valve 109, direction contol

valve 110 to deliver the braking assistance at the brake pedal 114 for braking of the vehicle. The controler 119 is enabled to monitor the brake pedal 114 operation for all the period when the vehicle is under operating conditon.
Figure 3 shows an exemplary schematic flowchart depicting a method 300 for operation of the system 100 for providing braking asstance, in accordance wih an embodiment of the present subject matter
At block 3 01, the user is enabled to select the mode for the requirement of assistance for braking the vehicle. The input output interface 121 is enabled to receive any one of the modes comprsing ncreasing pedal efor constant pedal efort and decreasing pedal effor
At block 302, when braking is required for stopping or lowering the speed of the vehicle, the user may apply the brake. The user may apply the brake by diplacing he brake pedal 114 in the first direction 123.
At block 303, the brake pedal displacement sensor 122 is enabled to continuously monitor and detect the displacement of the brake pedal 114.
At block 304, the brake pedal displacement sensor 122 is enabled to send the sgnals relating to the displacement of the brake pedal 114. The signals may comprise the amount of displacement and the rate of displacement to the contoller 119 provided within the procesng unit 118.
At block 305, the controller 119 on receipt of the signals from he brake pedal diplacement sensor 122 may process the sgnal at block 306.
At block 307-A and block 307-B, the controller 119 is enabled to control the
pressure and flow of fluid from the power steering fluid circuit 101 to the contol
uid circuit 103. At block 307-A, the contoler 119 s enabled o egulate he

pressure of the fluid by operation of the proportional pressure relief valve 108. At block 307-B, the controller 119 is enabled to regulate the flow of the pressurized luid by operation of the proportonal flow regulating valve 109. In an embodiment, the controller 119 is enabled to regulate the pressure and flow of fluid based on the mode selected by the user and the diplacement of the brake pedal 114.
At block 308, the pressurized and controlled flow of fluid enters the fst section 112 of the direction control valve 110 thereby exerting a force on the piston 111 of
he assistance cylinder 102 wherein the force exerted by the fuid on the pion 111
esults in braking assistance at the brake pedal 114.
Figure 4 and Figure 5, which shows an exemplary schematic graph of brake pedal effort required from he user at the brake pedal with respect to the brake pedal displacement at multiple modes and an exemplary schematic graph of assistance force provide by he system 100 wih espect to he brake pedal diplacement at multple modes
In an embodiment, with the aid of system 100 disclosed in Figure 1 and the method 300 disclosed Figure 3, the user may receive the braking assistance at the brake pedal 114 beyond pedal displacement value as defined by the user through the input output interface 121 which may be stored in the memory 120. There will be no any assisance force at the assistance cylinder 102 from he neutral brake pedal 114 positon tl the brake pedal is displaced at the pre-defined value.
The effort to be made by the user at the brake pedal 114 while during the period of braking assistance may be constant, increasing (linear or non-linear) or decreasing (linear or non-linear - not shown in figures) which depends on he mode selected by the user as disclosed in method 200.
In an embodiment, as the brake pedal 114 diplacement increases, the effort made by user is constant durng constant pedal efort mode. Furhermore, as the brake

pedal 114 displacement increases, the assance force for braking ncreases at the assisance cylinder 102.
In another embodiment, as the brake pedal 114 displacement increases, the effort made by user is constant during increasing pedal effort mode. Furthermore, as the brake pedal 114 displacement increases, the assistance force for braking decreases nearly or non-neary at the asstance cylinder 102.
In yet another embodiment, as the brake pedal 114 displacement increases, the effort made by user is consant during decreasing pedal efort mode. Furthermore, as the brake pedal 114 displacement increases, the assistance orce or braking ncreases lnearly or non-nearly at the assisance cylinder 102.
The described operations may be implemented as a method, system or article of manufacture using standard programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof. The described operations may be implemented as code maintained in a "non-transitory computer readable medium", where a processor may read and execute the code from the computer readable medium. The processor is at least one of a microprocessor and a processor capable of processing and executing the queries. A non-transitory computer readable medium may include media such as magnetic sorage medium (e.g., hard disk drives, floppy disks, tape, etc.), optical storage (CD-ROMs, DVDs, optical disks, etc.), volatie and non-volatile memory devices (e.g., EEPROMs, ROMs, PROMs, RAMs, DRAMs, SRAMs, Flash Memory, firmware, programmable logic, etc.), etc. Further, non-transitory computer-readable media may include all computer-readable media except for a transitory. The code mplementing the described operations may further be implemented n hardware logic (e.g., an integrated circuit chip, Programmable Gate Aray PGA) Application Specifc Integrated Cicuit (ASIC), etc.).

An "article of manufacture" includes non-transitory computer readable medium, and /or hardware logic, in which code may be implemented. A device in which the code implementing the described embodiments of operations is encoded may nclude a computer readable medium or hardware logic. Of course, those skilled in the art will recognize that many modifications may be made to this configuration without departing from the scope of the invention, and that the article of manufacture may include suitable information bearng medium known in the ar
The terms "an embodiment", "embodiment", "embodiments", "the embodiment", "the embodiments", "one or more embodiments", "some embodiments", and "one embodiment" mean "one or more (but not all) embodiments of the nvention(" unless expressly specifed otherwie.
The terms "including", "comprising", "having" and variations thereof mean "including but not lmed to", unless expressly specifed otherwise.
The enumerated listing of items does not imply that any or all of the ems are mutually exclusve, unless expressly specified otherwise.
The terms "a", "an" and "the" mean "one or more", unless expressly specifed otherwie.
A description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary a variety of optional components are descrbed o usate he wide variety of possible embodiments of the invention.
When a single device or article is described herein, it will be readily apparent that more than one device/article (whether or not they cooperate) may be used in place of a single device/article. Similarly, where more than one device or article is described herein whether or not they cooperate), it wil be readily apparent that a

single device/article may be used in place of the more than one device or article, or a different number of devices/articles may be used instead of the shown number of devices or programs The functionality and/or the features of a device may be alternatively embodied by one or more other devices which are not explicitly described as having such functionality/features Thus other embodiments of the nventon need not include the device iself
In alternative embodiments, certain operations may be performed in a different order, modied, or removed. Moreover, steps may be added to the above-described logic and still conform to the descrbed embodiments. Further, operations described herein may occur sequentially or certain operations may be processed in parallel. Yet further, operations may be perormed by a sngle processing unit 118 or by dibuted procesng unit 118s
Finally, the language used in the specification has been principally selected for readability and insructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter It is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. Accordingly, the disclosure of the embodiments of the invention is intended to be illustrative, but not lming, of the scope of the inventon, which is set forh in the folowing claims.
While various aspects and embodiments have been disclosed herein, other aspects
and embodiments will be apparent to those skilled in the art. The various aspects and
embodiments disclosed herein are for purposes of illustration and are not intended
o be lming, with the tue scope and spirt being indicated by the following claim

Referral numerals:

Reference Number Descripton
100 Assisve braking sysem
101 Power steering fuid circuit
102 asstance cylinder
103 contol fuid circuit
104 eering oil reservoir
105 Pump
106 Prory fow control valve
107 power steering gear box assembly
108 proporonal presure relief valve
109 proportonal fow egulating valve
110 direction control valve
111 pion
112 t section
113 second section
114 brake pedal
115 piston rod
116 andem maser cylinder
117 push rod
118 procesng unit
119 contoler
120 memory
121 nput output interace
122 brake pedal diplacement sensor

123 rst direction
124 econd direction
125 pilot lne
126 econd connection
127 econd connection point
200 Method for selecion of mode braking asstance
300 Method for operation of sytem 100 for providing braking asstance

We Claim:
1. A system 100 for generating an assistive force during braking operation of a
vehicle, the system 100 comprising:
a brake pedal 114 connected to a piston 111 aligned wihin an asstance cylinder 102 via a piston rod 115;
a tandem master cylinder 116 connected o he piston 111 of the asstance cylinder 102 via a push rod 117;
a control fluid circuit 103 enabled to exchange fluid between a power eering fluid circuit and the assistance cylinder 102; and
an nput-output interface enabled to receive inputs from a user for a type of assistance out of the plurality of types of assisance required while braking the vehicle;
a processing unit 118 communicatively coupled to one or more units
and circuits of the system 100 and enabled to provide the type of assistance
or braking as defined by the user by generating the assistive force wherein
the assistive force is generated and varied proportionally based on he
predefined parameters procesed in relation to the type of assance required
or braking operation.
2. The system 100 of claim 1, the assistive force for braking is provided on detecting he displacement of the brake pedal 114 in a first direction 123 hereby discharging a controlled and proportional amount of pressurized fluid from the steering fluid circuit to a ft section 112 of the assisance cylinder 102.
3. The system 100 of claim 1, the assistive force for releasing the brakes is provided by detecting the displacement of the brake pedal 114 in a second direction 124 thereby discharging a controlled and proportional amount of pressurized fluid from the steering fuid circuit to a second section 113 of the asstance cylinder 102.

4. The system 100 of claim 2 and 3, wherein the pressure and flow of the fluid is proporonally contoled based on he type of assistance required by he user
5. The system 100 of claim 1, wherein the control fluid circuit 103 comprises a priority flow control valve 106, a proportional pressure relief valve 108, a proporonal fow egulating valve 109, and direction contol valve 110.
6. The system 100 of claim 1, wherein the discharge of proportional amount of pressurized fluid in first section 112 displaces the piston 111 with the push rod 117 towards the tandem master cylinder 116 thereby actuating the braking operation.
7. The system 100 of claim 1, wherein the discharge of proportional amount of pressurized fluid in second section 113 displaces the piston 111 with the push rod 117 away from he tandem maser cylinder 116 thereby de-actuating the braking operation.
8. The system 100 of claim 3 and 5, wherein the priorty flow control valve 106
s connected to the power steering fluid circuit and is enabled to tanser fuid om eering fluid circuit to the contol fluid circuit 103.
9. The system 100 of claim 1, wherein a brake pedal displacement sensor 122 pivotally attached to the brake pedal 114 is enabled to determine the movement of the brake pedal 114 n he first direction 123 and he second direction 124.
10. The system 100 of claim 3 and 5, wherein the requirement of assisve force
s proportionally controlled by the pre-defined pressure limit and flow limit set by the processing unit 118 on the proportional pressure relief valve 108 and the proporonal flow egulating valve 109.

11. The system 100 of claim 3 and 5, wherein the direction control valve 110 is
enabled to transfer proportional amount of pressurized fluid to the frst section
112 on detecting the diplacement of the brake pedal 114 in the firt direction
123.
12. The system 100 of claim 3 and 5, wherein the direction control valve 110 is
enabled to transfer proportional amount of pressurized fluid to second section
113 on detecting he diplacement of the brake pedal 114 n he second
direction 124.
13. The system 100 of claim 5, wherein the fluid received from the assistance cylinder 102 is tanserred by the direction contol valve 110 to a control fluid circuit 103.
14. The system 100 of claim 5, wherein the fluid flow from the proportional flow regulating valve 109 is controlled by the processing unit 118 based on the rate of pedal displacement signals received om he brake pedal displacement
ensor 122.
15. A method of assisting a user for braking operation by generating an assistve
orce at the brake pedal 114, the method comprising the steps of:
determining, by a processing unit 118, displacement of the brake pedal 114;
receiving, by the processing unit 118, the type of asstance required by user for the braking the vehicle,
actuating, by a processing unit 118, a priority flow control valve 106 to transfer fluid from a power steering circuit to a proportional presure relief valve 108 based on the type of assistance required by the user;
controlling, by a processing unit 118, pressure and flow of fluid based on requirement of the type of assistive force set by the user through the proportional pressure elief valve 108 and a proporonal fow egulating valve 109;

ransferring, by he processing unit 118, the proportional amount of controlled pressurized fluid flow o an assistance cylinder 102 thereby generative the predefined asstive orce at the brake pedal 114 or braking operation of the vehicle.
16. The method of claim 14, wherein the processing unit 118 is enabled to
generating assistive force for braking by transferring proportional amount of
fluid to a first section 112 of an assistance cylinder 102 on determining the
displacement of brake pedal 114 in the first direction 123 thereby generating
assistive force which displaces a piston 111 connected to a push rod towards
he tandem maser cylinder 116 for actuating the braking operation.
17. The method of claim 14, wherein the processing unit 118 is enabled to
generating assistive force for braking by transferring proportional amount of
fluid to a second section 113 of an asstance cylinder 102 on determining the
displacement of brake pedal 114 in the second direction 124 thereby
generating assistive force which displaces the piston 111 with the push od
117 away from the andem maser cylinder 116 hereby de-actuating he
braking operation.