TECHNICAL FIELD
[0001] The present disclosure, in general, relates to a system and a method that increases an overall life and efficiency of a particulate filter installed in an exhaust system of a vehicle; and more particularly relates to the system and the method that helps in reducing the size of a particulate that generally stuck in the particulate filter. In addition, the proposed system and the method increases the overall life and efficiency of the particulate filter.
BACKGROUND
[0002] Exhaust manifold generally includes runners to collect exhaust gases coming from multiple engine cylinders and direct these exhaust gases through a particulate filter. The particulate filter is placed after the exhaust manifold for collection of large-sized particles, contained in the exhaust gases and released due to an incomplete combustion of fuel. In an example and not byway of limitation, the incomplete combustion of fuel may not occur all the time, but occur occasionally, say, due to unconventional driving pattern, ageing of engine components, non-maintenance/replacement of the particulate filter during periodic vehicle service, or the like.
[0003] Also, those skilled in the art can appreciate that the large-sized particles which are generated due to the incomplete combustion of fuel are generally harmful for the environment. It is therefore the particulate filter consists of a number of cells arranged in a specific manner to limit an escape of the large-sized particle in the atmosphere. Due to the collection of large-sized particles in the particulate filter over a time period, the particulate filter may choke. Because of this, the particulate filter is generally changed / cleaned after a specified time period. Sometimes, due to the

negligence of the user, the cleaning / changing of the particulate filter may not be performed after the specified time period, which may result into choking of the particulate filter. The chocking of the particulate filter impacts the effective removal of the exhaust gases through an exhaust system.
[0004] Also, by having a choked particulate filter in the vehicle, the movement of the exhaust gases occurs in a reverse direction. That is, due to the choked particulate filter, the exhaust gases may move towards the engine cylinders, which in turn effects the working of the engine and also reduces the life and efficiency of the engine.
[0005] In order to overcome the above-mentioned issues arising in the state of the art, vehicle manufacturers are constantly refining the exhaust systems of the vehicle to improve the lifespan of the particulate filter. However, the refinements to the exhaust system lead to complex structural designs, which in turn results in increase in the overall cost of the vehicle and also increase the overall weight of the vehicle.
[0006] Hence, there is requirement of a system and a method that increases the life span and efficiency of the particulate filter.
OBJECTS OF THE DISCLOSURE
[0007] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed herein below.
[0008] It is a general or primary object of the present disclosure to provide a system and a method that increase the life and efficiency of a particulate filter.

[0009] It is another object of the present disclosure to provide the system which vary the intensity of magnetic field in an exhaust emission by controlling the electromagnets depending on predefined engine parameters
[0010] It is another object of the present disclosure to provide the system and the method that controls the emission of large-sized particles in the atmosphere.
[0011] It is another object of the present disclosure to provide the system amenable to installation and maintenance in both newly manufactured vehicles as well as existing vehicles.
[0012] It is yet another object of the present disclosure to provide the system amenable to installation and use in a variety of internal combustion cycles burning a variety of different fuels.
[0013] It is further object of the present disclosure to provide the low cost and efficient system and method that helps in easy and secure assembly of the electromagnets over an exhaust manifold runner.
[0014] It is further object of the present disclosure to provide the system and the method that provides high performance and reliability.
[0015] These and other objects and advantages will become more apparent when reference is made to the following description and accompanying drawings.
SUMMARY
[0016] This summary is provided to introduce concepts related to an exhaust emission treatment system and a method that reduce the chances of choking of a particulate filter. The concepts are further described below

in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[0017] The present disclosure provides an exhaust emission treatment system comprising a plurality of electromagnets mounted uniformly on circumference of each of exhaust manifold runners and a current amplitude controller communicatively coupled with the electromagnets. The current amplitude controller is to control the amount of current supplied to the electromagnets depending on an engine speed, an engine load, a fuel quantity injected in an engine, for varying the intensity of the magnetic field generated by the electromagnets.
[0018] In an aspect, the present disclosure provides the system comprising an engine control unit (ECU) having a control logic unit and the current amplitude controller.
[0019] In an aspect, the present disclosure provides the system in which the control logic unit is to determine a current amplitude selection factor (Z) based on the engine speed and the engine load; determine a current amplitude scale factor (Zi) based on the fuel quantity injected in the engine during change in the engine load; calculate a final current amplitude (Zfinai) based on the current amplitude selection factor (Z) and the current amplitude scale factor (Zi); generate a control signal based on the calculated final current amplitude (Zfinai); and transmit the control signal to the current amplitude controller for controlling the amount of current supplied to the electromagnets.
[0020] In an aspect, the present disclosure provides the system in which the electromagnets are mounted before a particulate filter in an exhaust gas line.

[0021] In an aspect, the present disclosure provides the system in which the current amplitude controller vary the intensity of magnetic field generated by the electromagnets depending on predefined engine parameters.
[0022] The present disclosure further provides a method for operating an exhaust emission treatment system. The method comprising the steps of determining, by the control logic unit of an engine control unit (ECU), a current amplitude selection factor (Zi) based on the engine speed and the engine load; determining, by the control logic unit, a current amplitude scale factor (Z2) based on the fuel quantity injected in the engine during change in the engine load; calculating, by the control logic unit, a final current amplitude based on the current amplitude selection factor (Z1) and the current amplitude scale factor (Z2); generating, by the control logic unit, a control signal based on the calculated final current amplitude (Zfinai); and transmitting, by the control logic unit, the control signal to a current amplitude controller of the ECU for controlling the amount of current supplied to electromagnets mounted uniformly on circumference of each of exhaust manifold runners.
[0023] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by

way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
[0025] FIG.1 illustrates a block diagram of an exhaust emission treatment system showing the interconnection between an engine control unit (ECU) and a plurality of electromagnets mounted on the circumference of each of a runner of an exhaust manifold, in accordance with an embodiment of the present disclosure;
[0026] FIG.2 illustrates a schematic view of the electromagnets mounted uniformly on the circumference of each runners of an exhaust manifold of the exhaust emission treatment system, in accordance with the embodiment of the present disclosure;
[0027] FIG. 3 illustrates the working of the electromagnets mounted on the circumference of the runners of the exhaust manifold , in accordance with the embodiment of the present disclosure;
[0028] FIG. 4 illustrates a method for operating an exhaust emission treatment system, in accordance with the embodiment of the present disclosure; and
[0029] FIG.5 represents a an exemplary chart showing a reference data.
DETAILED DESCRIPTION
[0030] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications,

equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0031] FIG.1 illustrates a block diagram of an exhaust emission treatment system 100 showing the interconnection between an engine control unit (ECU) 102 and a plurality of electromagnets 104 mounted on a circumference of each of runners 106 of an exhaust manifold 202.
[0032] Generally, the ECU 102 is an electronic device implemented in a vehicle's body that is responsible for monitoring and controlling specific functions.
[0033] Here, the ECU 102 mainly consists of a control logic unit 102A and a current amplitude controller 102B. The control logic unit 102A sends a control signal to the current amplitude controller 102B which in turns control the amount of current supplied to the electromagnets 104 mounted on the circumference of each of runners 106 of the exhaust manifold 202. In addition, the variation in the amount of current supplied to the electromagnets 104 differ the intensity of the magnetic fields generated by the electromagnets 104.
[0034] Moreover, for generating the control signal, the control logic unit 102A considers various operating parameters of a vehicle including, but not limited to, an engine speed 108, an engine load 110, and a fuel quantity 112 injected inside an engine during the changing of the engine load 110.
[0035] FIG.2 illustrates a schematic view of the electromagnets 104 mounted uniformly on the circumference of each runners 106 of an exhaust manifold 202 of the exhaust emission treatment system 100.
[0036] The exhaust manifold 202 is an important part of the exhaust emission treatment system 100. The exhaust manifold 202 includes a plurality of runners 106 that are used to connect all of the engine cylinders

to an exhaust line having a particulate filter (not shown in figures). The exhaust manifold 202 collects exhaust gases from the engine cylinders and deliver them to the particulate filter. The particulate filter collects the particulates from the exhaust gases and then transmit the filtered exhaust gases into the atmosphere.
[0037] To overcome the issue related with choking of the particulate filter, the present disclosure proposes the exhaust emission treatment system 100 in which the electromagnets 104 are mounted on each of the runners 106 of the exhaust manifold 202, so as to break the large-sized particles present in the exhaust gases into the small-size particles.
[0038] Fig. 3 illustrates the working of the electromagnets 104 mounted on the circumference of the runners 106 of the exhaust manifold 202. Herein, the current amplitude controller 102B receives signal from the control logic unit 102Aand then supply current to the electromagnets 104. These electromagnets 104 establish the magnetic field, which will interact with the charged ions present in the exhaust gases flowing inside the exhaust manifold 202 and create turbulence.
[0039] The turbulence generated inside the exhaust manifold 202 or runners 106 will lead to collision of the bigger and heavy charged particles shown by the dark grey colour and reference numeral 302, thereby ultimately reducing their size and convert them to smaller and lighter particles shown by the light grey colour and reference numeral 304. These small particulates can easily pass through the cells of the particulate filter without choking the cells of the particulate filter. Moreover, these small particulates are generally not hazardous to the environment as compared to the heavier one.

[0040] In an aspect, the intensity of the magnetic field generated by the electromagnets 104 may be varied based on the amount or amplitude of current supplied by the current amplitude controller 102B.
[0041] In another aspect, the system 100 proposed in the present disclosure has a provision for activating or deactivating the electromagnets 104 depending upon the requirements to deal with excessive or more emissions during predefined engine conditions.
[0042] FIG.4 illustrates a method 400 that helps in calculating a final current amplitude (Zfinai) that need to be supplied to the electromagnets 104. The order in which the method 400 is described is not intended to be construed as a limitation, and any number of the described method blocks may be combined in any order to implement the method 400, or an alternative method. Furthermore, method 400 may be implemented by the ECU 102, processing device(s) or computing device(s) through any suitable hardware.
[0043] At block 402, the control logic unit 102A determine the current amplitude selection factor (Zi) based on the engine speed (RPM, revolutions per minute) (X) and the engine load (Y).
[0044] At block 404, the control logic unit 102A calculates the current amplitude scale factor (Z2) based on the fuel quantity injected in the engine during change in the engine load.
[0045] At block 406, the control logic unit 102A further calculates the final current amplitude required for electromagnet 104 during the change of the engine load on the basis of the below-mentioned formulae
Zi * Z2= Zfinai

[0046] At block 408, the control logic unit 102A transmits the final current amplitude requirement data (Zfinai) in the form of a control signal to the current amplitude controller 102B of the ECU 102 for controlling the amount of current supplied to electromagnets 104 mounted uniformly on the circumference of each of exhaust manifold runners 106 of the exhaust manifold 202.
[0047] At block 410, as per the instructions received by the current amplitude controller 102B of the ECU 102, the current amplitude controller 102B controls the amount of current supplied to the electromagnets.
[0048] At block 412, the electromagnets 104 establish the magnetic field which will interact with the charged ions present in the exhaust gases flowing inside the exhaust manifold 202 and create turbulence that results in the breaking of the large-sized particles in to small-sized particles that can easily pass through the particulate filter.
[0049] FIG. 5 represents an exemplary chart showing a reference data for the purpose of reference and better understanding that how the different factors can be cacluated. The left side chart shows the current amplitude selection parameter (Zi) based on the engine speed/RPM (X) and the engine load (Y). For example, when the engine RPM is 1000 and the engine load (%) is 0.1 than the current amplitude section factor (Zi) will be 1. In addition, when the engine RPM is 1000 and the engine load (0.2%), than the current amplitude selection factor Zi) will be 2.The right side chart shows the current amplitude scale factor (Z2) based on the fuel quantity injected in the engine during change in the engine load. For example, when the fuel quantity is 1 mg and the change in engine load (% per sec) is 1, than the current amplitude scale factor (Z2) will be 1. In addition, when the when the fuel quantity is 1 mg and the change in engine load (% per sec) is 2, than the current amplitude scale factor (Z2) will be 2.

[0050] Thus, with the described system 100 and method 400 described in the present disclosure, various technical problems of the state of the art are resolved. Also, although a number of exemplary method options are described herein, those skilled in the art can appreciate that the proposed exhaust emission treatment system helps in improving the emission effectively without deviating from the scope of the subject matter of the present disclosure.
[0051] Further, it will be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the invention and are included within its scope.
[0052] Furthermore, all examples recited herein are principally intended expressly to be only for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor(s) to furthering the art and are to be construed as being without limitation to such specifically recited examples and conditions. Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments.
[0053] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

TECHNICAL ADVANTAGES
[0054] The present disclosure provide a system and a method that increases the life and the efficiency of the particulate filter.
[0055] The present disclosure provide the system and the method that controls the emission of large-sized particles in an atmosphere.
[0056] The present disclosure provides the system amenable to installation and maintenance in both newly manufactured vehicles as well as existing vehicles.
[0057] The present disclosure provides the system amenable to installation and use in a variety of internal combustion cycles burning a variety of different fuels.
[0058] The present disclosure provides the low cost and efficient system and method that helps in easy and secure assembly of the electromagnets over the exhaust manifold runner.
[0059] The present disclosure provides the system and the method that provides high performance and reliability.
[0060] The present disclosure provides the system which vary the intensity of magnetic field in the exhaust emission by controlling the electro magnets depending on predefined engine parameters.

WE CLAIM:

1. An exhaust emission treatment system (100) comprising:
A plurality of electromagnets (104) mounted uniformly on circumference of each of a runners (106) of an exhaust manifold (202); and
a current amplitude controller (102B), communicatively coupled with the electromagnets (104), to control the amount of current supplied to the electromagnets (104), depending on an engine speed, an engine load, a fuel quantity injected in an engine, for varying the intensity of the magnetic field generated by the electromagnets (104).
2. The system (100) as claimed in claim 1, comprising an engine control unit (ECU) (102) having a control logic unit (102A) and the current amplitude controller (102B).
3. The system (100) as claimed in claim 1, wherein the control logic unit (102A)isto:
determine a current amplitude selection factor (Zi) based on the engine speed and the engine load;
determine a current amplitude scale factor (Z2) based on the fuel quantity injected in the engine during change in the engine load;
calculate a final current amplitude (Zfinai) based on the current amplitude selection factor (Z1) and the current amplitude scale factor (Z2);

generate a control signal based on the calculated final current amplitude (Zfinai); and
transmit the control signal to the current amplitude controller (102B) for controlling the amount of current supplied to the electromagnets (104).
4. The system (100) as claimed in claim 1, wherein the electromagnets (104) are mounted before a particulate filter in an exhaust gas line.
5. The system (100) as claimed in claim 1, wherein the current amplitude controller (102B) varying the intensity of magnetic field generated by the magnetic field depending on predefined engine parameters.
6. A method for operating an exhaust emission treatment system (100), comprising:
determining, by a control logic unit (102a) of an engine control unit (ECU) (102), a current amplitude selection factor (Zi) based on the engine speed and the engine load;
determining, by the control logic unit (102A), a current amplitude scale factor (Z2) based on the fuel quantity injected in the engine during change in the engine load;
calculating, by the control logic unit (102A), a final current amplitude (Zfinai) based on the current amplitude selection factor (Z1) and the current amplitude scale factor (Z2);
generating, by the control logic unit (102A), a control signal based on the calculated final current amplitude (Zfinai); and

transmitting, by the control logic unit (102B), the control signal to a current amplitude controller (102B) of the ECU (102) for controlling the amount of current supplied to electromagnets (104) mounted uniformly on circumference of each of exhaust manifold runners (106).