FIELD OF THE INVENTION
The present disclosure relates to magnetically detecting tilt of an object and in particular, relates to a tilt detection device for a vehicle.
BACKGROUND
Tilt detection devices are used in various applications to detect the angular orientation of an object with respect to a reference, usually supplied by gravity. The tilt detection devices are used on vehicles, such as two-wheeler vehicles, three-wheeler vehicles, or four-wheeler vehicles to detect when the vehicle, or some movable component thereon, has reached a threshold tilt angle.
Figure la illustrates a conventional tilt detection device which includes a magnet holder for accommodating a single magnet. The single magnet is positioned on a bottom half of the magnet holder. Further, the South-Pole (S-pole) of the single magnet is facing towards a Hall IC for detecting a tilt angle.
Figure lb illustrates another conventional tilt detection device which includes a magnet made of Plasto-ferrite material. As shown in Figure lb, the magnet has three sections. The center section indicates a North-Pole (N-Pole) of the magnet, and the other two sections indicate South-Poles (S-poles) of the magnet. When an object on which the tilt detection device is employed tilts about a reference, the sections indicative of the S-poles may move towards a Hall IC. Owing to the movement of the sections indicative of the S-pole, the Hall IC may detect a tilt angle of the object.
Figure lc illustrates yet another conventional tilt detection device which includes a magnet made of Plasto-ferrite material. Similar to the magnet of the conventional tilt detection device of Figure lb, the magnet has three sections. The center section indicates a South-Pole (S-Pole) of the magnet, and the other two sections indicate North-Poles (N-poles) of the magnet. Further, the magnet includes a weight positioned in a lower portion to maintain stability during oscillation condition or vibrations.

However, the above mentioned conventional tilt detection devices leads to following disadvantages:
1. The magnetic flux lines form an open loop magnetic circuit, and such magnetic circuits are not accurate for tilt angle measurement.
2. The tilt angle is not having repeatability due to open magnetic circuit.
3. The manufacturing of die is complicated and costly, as it requires magnetization during plastic injection moulding process.
4. This magnetic circuit has high reluctance path hence less efficiency (loss of magnetic flux).
5. The magnet holder of Figure la & the magnet of Figure lb fail to provide resistance to oscillations caused by vibration and mechanical shock, thereby leading to malfunctioning of the sensor.
Therefore, there is a need for an improved tilt detection device to detect a tilting of an object.
SUMMARY
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.
In an embodiment, a tilt detection device for a vehicle is disclosed. The tilt detection device includes a housing member having a first pocket and a second pocket positioned at a predefined angle with respect to each other. The tilt detection device includes a first magnetic core and a second magnetic core disposed in the first pocket and the second pocket, respectively. The tilt detection device includes a first permanent magnet and a second permanent magnet disposed in the first pocket and the second pocket, respectively. The first permanent magnet abuts the first magnetic core in the first pocket to form a first closed-loop magnetic circuit. The second permanent magnet abuts the second magnetic core in the second pocket to form a second closed-loop magnetic circuit. The tilt detection unit is adapted to detect magnetic flux associated

with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit.
In another embodiment, a vehicle is disclosed. The vehicle includes an engine and a controlling unit in communication with the engine. The controlling unit is configured to operate the engine. Further, the vehicle includes a tilt detection device in communication with the controlling unit. The tilt detection device includes a housing member having a pair of pockets. The pair of pockets includes a first pocket and a second pocket positioned at a predefined angle with respect to each other. Further, the tilt detection device includes a pair of magnetic cores adapted to be disposed in the pair of pockets. The pair of magnetic cores includes a first magnetic core disposed in the first pocket and a second magnetic core disposed in the second pocket. The tilt detection device also includes a pair of permanent magnets adapted to be disposed in the pair of pockets. The pair of permanent magnets includes a first permanent magnet and a second permanent magnet disposed in the first pocket and the second pocket, respectively. The first permanent magnet abuts the first magnetic core in the first pocket to form a first closed-loop magnetic circuit and the second permanent magnet abuts the second magnetic core in the second pocket to form a second closed-loop magnetic circuit. Further, the tilt detection device includes a tilt detection unit in communication with the controlling unit and adapted to detect magnetic flux associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit. The controlling unit receives information indicative of a value of magnetic flux density associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit from the tilt detection unit. The controlling unit operates the engine based on the received information from the tilt detection unit.
To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
Figure 2 illustrates a perspective view of a tilt detection device, according to an embodiment of the present disclosure;
Figure 3 illustrates an exploded view of a magnet holder of the tilt detection device, according to an embodiment of the present disclosure;
Figure 4 illustrates a sectional view of the magnet holder taken along an axis X-X' of Figure 2, according to an embodiment of the present disclosure;
Figure 5 illustrates an operation of the tilt detection device, according to an embodiment of the present disclosure;
Figure 6 illustrates an implementation the tilt detection device in a vehicle, according to an embodiment of the present disclosure;
Figure 7a illustrates a graph depicting a variation in a tilt angle of the vehicle with respect to a sample size associated with a conventional magnet holder having an open loop magnetic circuit, according to an embodiment of the present disclosure; and
Figure 7b illustrates a graph depicting a variation in a tilt angle of the vehicle with respect to a sample size associated with the magnet holder having a closed-loop magnetic circuit, according to an embodiment of the present disclosure.
Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have been necessarily been drawn to scale. For example, the flow charts illustrate the method in terms of the most prominent steps involved to help to improve understanding of aspects of the present invention. Furthermore, in terms of the construction of

the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.
DETAILED DESCRIPTION OF FIGURES
For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the invention and are not intended to be restrictive thereof.
Reference throughout this specification to "an aspect", "another aspect" or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.
The terms "comprises", "comprising", or any other variations thereof, are intended to cover a nonexclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or subsystems or elements or structures or components proceeded by "comprises... a" does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or other

components or additional devices or additional sub-systems or additional elements or additional structures or additional components.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
In an embodiment of the present disclosure, a magnet holder of a tilt detection device is disclosed. The magnet holder is adapted to hold a magnetic circuit and a balancing weight. The magnet holder is provided with a pair of pockets formed opposite to each other. The pair of pockets may be formed at an angle 9 with respect to each other, to accommodate two disc shaped magnets. Each of the pockets may accommodate a disc magnet and a C-core. The C-core is positioned below the disc magnet to form a closed magnetic circuit. The C-core and the disc magnet are positioned in the each of the pocket in such a manner that no air gap exists between the C-core and the disc magnet. Owing to arrangement of the C-core and the disc magnet, magnetic flux lines flow in closed circuit due to the low reluctance path developed around the magnet.
Figure 2 illustrates a perspective view of a tilt detection device 200, according to an embodiment of the present disclosure. Figure 3 illustrates an exploded view of the tilt detection device 200, according to an embodiment of the present disclosure. Figure 4 illustrates a sectional view of the magnet holder 200 taken along an axis X-X' of Figure 2, according to an embodiment of the present disclosure. In an embodiment, the tilt detection device 200 may be employed in a vehicle to detect a tilt angle of the vehicle. In another embodiment, the tilt detection device 200 may be employed in various applications to detect angular orientation of an object with respect to a reference, usually supplied by gravity.
Referring to Figure 2, Figure 3, and Figure 4, the tilt detection device 200 may include, but is not limited to, a housing member 202 adapted to accommodate a plurality of magnets and a

tilt detection unit 204. The housing member 202 may interchangeably be referred to as the magnet holder 202, without departing from the scope of the present disclosure. Further, the tilt detection unit 204 may interchangeably be referred to as the flux measurement unit 204, without departing from the scope of the present disclosure. Operational and construction details of the flux measurement unit 204 are explained in later sections of the present disclosure.
In an embodiment, the magnet holder 202 may be provided with a pair of pockets 206 for accommodating the plurality of magnets. In an example, the magnet holder 202 may include plurality of pockets for holding the magnets. The magnet holder 202 may be adapted to be pivotally mountable on the vehicle. The magnet holder 202 may be adapted to be pivotally moved when the vehicle is tilted with respect to a central axis A-A' (shown in Figure 6) of the vehicle. In the illustrated embodiment, referring to Figure 3, the pair of pockets 206 may include a first pocket 206-1 and a second pocket 206-2 positioned at a predefined angle 9, interchangeably referred as the angle 9, with respect to each other. In particular, each of the first pocket 206-1 and the second pocket 206-2 may be formed at the angle 9 with respect to each other.
The angle 9 may be defined based on a tilt angle of the vehicle at which the flux measurement unit 204 detects magnetic flux from the plurality of magnets. In an embodiment, the tilt angle may vary in a range of approximately 40 degree to 70 degree, and accordingly the angle 9 may vary with respect to the tilt angle. The angle 9 may interchangeably be referred to as magnetic circuit angle, without departing from the scope of the present disclosure. In an embodiment, the angle 9 can be varied to achieve a desired tilt angle output. Further, the design of the magnet holder 202 provides a flexibility to change the angle 9 as per requirement of a user. In an embodiment, the magnet holder 202 may be made of a plastic material or any other material polymer material known in the art, without departing from the scope of the present disclosure.
Further, referring to Figure 2 and Figure 3, the magnet holder 202 may include a cavity positioned at a bottom portion of the magnet holder 202. The cavity may be adapted to accommodate a balancing weight 214 at the bottom portion of the magnet holder 202. The balancing weight 214 may be adapted to provide resistance to oscillations of the magnet holder 202 generated by vibrations and mechanical shocks. In an embodiment, the balancing weight

214 may be made of a non-magnetic material, such as brass or any other materials known in the art, without departing from the scope of the present disclosure.
Further, the tilt detection device 100 includes the plurality of magnets, such as a pair of permanent magnets 210 and a pair of magnetic cores 212. The pair of permanent magnets 210 may interchangeably be referred to as the permanent magnets. Further, the pair of magnetic cores 212 may interchangeably be referred to as the magnetic cores 212. In the illustrated embodiment, referring to Figure 1 and Figure 2, the permanent magnets 210 may include a first permanent magnet 210-1 and a second permanent magnet 210-2 disposed in the first pocket 206-1 and the second pocket 206-2, respectively.
Each of the first permanent magnet 210-1 and the second permanent magnet 210-2 may be positioned in the first pocket 206-1 and the second pocket 206-2 at a certain angle 01 with respect to the flux measurement unit 204. Each of the first permanent magnet 210-1 and the second permanent magnet 210-2 may generate magnetic flux lines, interchangeably be referred to as the magnetic flux. Further, referring to Figure 3 and Figure 4, each of the first permanent magnet 210-1 and the second permanent magnet 210-2 may have a first surface 216-1 and a second surface 216-2 distal to the first surface 216-1.
In an embodiment, each of the first permanent magnet 210-1 and the second permanent magnet 210-2 may be embodied as neodymium magnet (NdFeB). In another embodiment, each of the first permanent magnets 210-1 and the second permanent magnet 210-2 may be embodied as other magnetic material known in the art, without departing from the scope of the present disclosure. A polarity of magnets, such as the permanent magnets 210 and the magnetic cores 212, may be defined based on the application in which the magnet holder 202 will be employed. In an embodiment, each of the first permanent magnet 210-1 and the second permanent magnet 210-2 may have a disc shape, without departing from the scope of the present disclosure.
As mentioned earlier, the permanent magnets 210 and the magnetic cores 212 may be accommodated in the pair of pockets 206, 208. The magnetic cores 212 may include a first magnetic core 212-1 and a second magnetic core 212-2 disposed in the first pocket 206-1 and the second pocket 206-2, respectively. In an embodiment, each of the first magnetic core 212-1 and the second magnetic core 212-2 may be embodied as a C-shaped core. Therefore, each of

the first magnetic core 212-1 and the second magnetic core 212-2 may interchangeably be referred to as the first C-core 212-1 and the second C-core 212-2, respectively.
Referring to Figure 3 and Figure 4, each of the first C-core 212-1 and the second C-core 212-2 may have a first surface 218-1 and a second surface 218-2 distal to the first surface 218-1. In an embodiment, the each of the first C-core 212-1 and the second C-core 212-2 may be made of a ferromagnetic material or any other material known in the art, without departing from the scope of the present disclosure. The C-cores 212-1, 212-2 are positioned below the permanent magnets 210-1, 210-2 in the pair of pocket 206,-1, 206-2.
Figure 5 illustrates an operation of the tilt detection device 200, according to an embodiment of the present disclosure. In the illustrated embodiment, referring to Figure 2, Figure 4, and Figure 5, the first permanent magnet 210-1 abuts the first C-core 212-1 in the first pocket 206-1 to form a first closed-loop magnetic circuit. The first C-core 212-1 and the first permanent magnet 210-1 may be positioned in the first pocket 206-1 such that the second surface 216-2 of the first permanent magnet 210-1 abuts the first surface 218-1 of the first C-core 212-1. The first C-core 212-1 may be positioned below the first permanent magnet 210-1 in such a manner, that no air gap exists between the first surface 218-1 of the first C-core 212-1 and the second surface 216-2 of the first permanent magnet 210-1. Owing to such an arrangement of the first C-core 212-1 and the first permanent magnet 210-1, the first closed-loop magnetic circuit is formed. In particular, the magnetic flux generated from the first permanent magnet 210-1 and the magnetic flux generated from the first C-core 212-1 form the first closed-loop magnetic circuit.
Similarly, referring to Figure 2, Figure 4, and Figure 5, the second permanent magnet 210-2 abuts the second C-core 212-2 in the second pocket 206-2 to form a second closed-loop magnetic circuit. The second C-core 212-2 and the second permanent magnet 210-2 may be positioned in the second pocket 206-2 such that the second surface 216-2 of the second permanent magnet 210-1 abuts the first surface 218-1 of the second C-core 212-2. The second C-core 212-2 may be positioned below the second permanent magnet 210-2 in such a manner, that no air gap exists between the first surface 218-1 of the second C-core 212-2 and the second surface 216-2 of the second permanent magnet 210-2.

Owing to such an arrangement of the second C-core 212-2 and the second permanent magnet 210-2, the second closed-loop magnetic circuit is formed. In particular, the magnetic flux generated from the second first permanent magnet 210-2 and the magnetic flux generated from the second C-core 212-2 form the second closed-loop magnetic circuit. In an embodiment, the first closed-loop magnetic circuit and the second closed-loop magnetic circuit may collectively be referred to as the closed-loop magnetic circuit, without departing from the scope of the present disclosure.
Further, owing to material properties of the C-cores, such as the first C-core 212-1 and the second C-core 212-2, and the arrangement of the C-cores with respect to the permanent magnets 210-1, 210-2, the C-cores provide a low reluctance path for the magnetic flux generated by the permanent magnets 210-1, 210-2, thereby providing the closed-loop magnetic circuit, such as the first closed-loop magnetic circuit and the second closed-loop magnetic circuit.
Referring to Figure 4, an epoxy material 220 may be filled in the pair of pockets 206, 208, after positioning the C-cores 212 and the permanent magnets 210 within the pockets 206-1, 206-2, to prevent the permanent magnets 210 and the C-cores 212 from corrosion & rust. In an embodiment, the pair of pockets 206-1, 206-2 may be filled with any other suitable material similar to the epoxy material 220 known in the art, without departing from the scope of the present disclosure.
Referring back to Figure 2 and Figure 5, the flux measurement unit 204 may be adapted to detect the magnetic flux associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit. The flux measurement unit 204 may be adapted to detect the magnetic flux when a value of magnetic flux density associated with the magnetic flux is higher than a threshold value of magnetic flux density. In an embodiment, the flux measurement unit 204 may be mounted on a Printed Circuit Board (PCB) (not shown). In an embodiment, the flux measurement unit 204 may be embodied as the Hall IC. The Hall IC 204 may be adapted to detect the magnetic flux associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit. In an embodiment, when a desired/threshold magnetic flux density required by the Hall IC 204 is reached, the output varies from a high value to a low value or vice-versa, depending upon the application.

Figure 6 illustrates an implementation the tilt detection device 200 in a vehicle 600, according to an embodiment of the present disclosure. The tilt detection device 200 may be employed for detecting tilting of various objects. In the present embodiment, the tilt detection device 200 may be employed in the vehicle 200, such as two-wheeler vehicles, three-wheeler vehicles, four-wheeler vehicles, commercial, or off-road vehicles. The tilt detection device 200 may be employed in the vehicle 600 for detecting a tilt-angle of the vehicle, rolling of the vehicle, bank-angle of the vehicle, and lean-angle of the vehicle.
In the illustrated embodiment, the tilt detection device 200 may be adapted to detect tilting of the vehicle on a Left-Hand (LH) side or a Right-Hand (RH) side about the central axis A-A' of the vehicle 600. In particular, the flux measurement unit 204 may detect tilting of the vehicle 600 based on the value of magnetic flux density associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit.
The flux measurement unit 204 may be in communication with a controlling unit 602 of the vehicle 600. In an embodiment, the controlling unit 602 may be embodied as an Electronic Control Unit (ECU) of the vehicle 600, without departing from the scope of the present disclosure. Therefore, the controlling unit 602 may interchangeably be referred to as the ECU 602. In an embodiment, the ECU 602 may be adapted to receive information indicative of the value of magnetic flux density associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit from the flux measurement unit 204.
Further, the ECU 602 may be in communication with an engine 604 of the vehicle. The ECU 602 may be adapted to operate the engine 604 based on the received information from the flux measurement unit 204. For instance, the information received by the ECU 602 from the flux measurement unit 204 indicates the value of magnetic flux density associated with the first closed-loop circuit. In such an instance, the ECU 602 may switch-off the engine 604 of the vehicle 600. Similarly, in another instance, the information received by the ECU 602 from the flux measurement unit 204 indicates that the value of magnetic flux density associated with the second closed-loop circuit. In such an instance, the ECU 602 may switch-off the engine 604 of the vehicle 600.

In one implementation embodiment, the tilt detection device 202 may be embodied as a Bank Angle Sensor (BAS). The BAS may be employed in a two-wheeler vehicle. The BAS may be adapted to communicate the tilt angle of the vehicle to the ECU 602. Based on the tilt angle, the ECU 602 may be adapted to switch-off an ignition of the vehicle 600, if the tilt angle exceeds a threshold value of the tilt angle. In an example, if the vehicle falls down either on a Left-Hand (LH) or a Right-Hand (RH) with respect to a centre axis, i.e., (when vehicle normal running condition), the BAS may detect the tilt angle, and communicate the tilt angle to the ECU. In such an example, based on the tilt angle received from the BAS, the ECU 602 may shut-off the ignition of the vehicle 600. Further, the disc shape magnets, such as the permanent magnets 210, the C-cores 212, and balancing weights 214 placed in the lower portion of the magnet holder 202 add more weight at bottom of the magnet holder 202 of the BAS, thereby avoiding generation of false signal of the tilt angle detected by the BAS, when vibrations & mechanical shocks are transmitted to the BAS through the vehicle 600.
Figure 7a illustrates a graph depicting a variation in a tilt angle of a vehicle with respect to a sample size associated with a conventional magnet holder having an open loop magnetic circuit, according to an embodiment of the present disclosure. The universal specification of tilt angle sensor angle variation tolerance is ± X degrees. Referring to Figure 7a, which shows variation of tilt angle for sample size of 5 no's is ± XI degrees which beyond the specifications. In particular, the variation of the tilt angle, i.e., XI is greater than the tilt angle variation tolerance, i.e., X.
Referring to Figure 7a, due to usage of a plasto ferrite magnet holder in the conventional tilt detection device, the magnetic field flows in an open loop pattern which has high reluctance path. The magnetic flux lines reaching the Hall IC are not in concentrated form but in scattered form which results in less accuracy of tilt angle measurement.
Figure 7b illustrates a graph depicting a variation in a tilt angle of a vehicle with respect to a sample size associated with the magnet holder 202 having the closed-loop magnetic circuit, according to an embodiment of the present disclosure. Referring to Figure 7b, which shows variation of the tilt angle for sample size of 5 no's is ± X2 degrees which within the specifications. In particular, the variation of the tilt angle, i.e., X2 degrees is lesser than the tilt angle variation tolerance, i.e., X. Owing to presence of the low reluctance path, the magnetic

field may flow in the closed-loop pattern. The magnetic flux lines reaching the Hall IC are in concentrated form hence the accuracy of tilt angle measurement, is improved compared to open loop circuit.
At least by virtue of aforesaid embodiment, the present disclosure at least leads to following advantages:
1. A unique closed-loop magnetic circuit, such as the first closed-loop magnetic circuit and the second closed-loop magnetic circuit, is designed with a low reluctance path, therefore high efficiency is achieved while measuring the tilt angle of the object
2. The closed-loop magnetic circuits are stable and provide more accuracy for measuring a tilt angle.
3. The C-cores 212-1, 212-2, the disc magnets, such as the permanent magnets 210-1, 210-2, and the balancing weight 214 in the bottom portion of the magnet holder 202 provide resistance to oscillations caused by vibration and mechanical shock, thereby avoiding malfunctioning of the sensor, such as the Hall IC 204.
4. The magnetic flux lines form the closed-loop magnetic circuits, which accurately measures the tilt angle of the object, such as a two-wheeler vehicle.
5. The disc magnets can be assembled in the magnet holder 202 after performing injection moulding, therefore the manufacturing is simple and cheaper.
6. Tilt angle measured by the flux measurement unit 214 has good repeatability.
7. To change the tilt angle, the angle 9 between the magnets, such as the permanent magnets 210 and the magnetic cores 212 can be varied to achieve desired tilt angle output.
8. This design of the magnet holder 202 has flexibility to change the angle 9 as per customer requirement & the design is robust for measurement of tilt angle of any vehicles.
The drawings and the forgoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example,

orders of processes described herein may be changed and are not limited to the manner described herein.
Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples. Numerous variations, whether explicitly given in the specification or not, such as differences in structure, dimension, and use of material, are possible. The scope of embodiments is at least as broad as given by the following claims.
Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any component(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential feature or component of any or all the claims.
While specific language has been used to describe the present subject matter, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.

WE CLAIM:
1. A tilt detection device (200) for a vehicle, the tilt detection device (200) comprising:
a housing member (202) having a pair of pockets (206), wherein the pair of pockets (206) includes a first pocket (206-1) and a second pocket (206-2) positioned at a predefined angle with respect to each other;
a pair of magnetic cores (212) adapted to be disposed in the pair of pockets (206), wherein the pair of magnetic cores (212) includes a first magnetic core (212-1) disposed in the first pocket (206-1) and a second magnetic core (212-2) disposed in the second pocket (206-2);
a pair of permanent magnets (210) adapted to be disposed in the pair of pockets (206), wherein the pair of permanent magnets (210) includes a first permanent magnet (210-1) and a second permanent magnet (210-2) disposed in the first pocket (206-1) and the second pocket (206-2), respectively,
wherein the first permanent magnet (210-1) abuts the first magnetic core (212-1) in the first pocket (206-1) to form a first closed-loop magnetic circuit and the second permanent magnet (210-2) abuts the second magnetic core (212-2) in the second pocket (206-2) to form a second closed-loop magnetic circuit; and
a tilt detection unit (204) adapted to detect magnetic flux associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit.
2. The device (200) as claimed in claim 1, wherein the housing member (202) is pivotally mounted on the vehicle, the housing member (202) is adapted to be pivotally moved when the vehicle is tilted with respect to a central axis A-A' of the vehicle.
3. The device (200) as claimed in claim 1, wherein the predefined angle is defined based on a tilt angle of the vehicle at which the tilt detection unit (204) detects the magnetic flux.
4. The device (200) as claimed in claim 1, wherein the tilt detection unit (204) is adapted to detect the magnetic flux when a value of magnetic flux density associated with the magnetic flux is higher than a threshold value of magnetic flux density.

5. The device (200) as claimed in claim 1, wherein the tilt detection unit (204) is in communication with an Electronic Control Unit (ECU) (602) of the vehicle, the ECU (602) is adapted to receive information indicative of a value of magnetic flux density associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit from the tilt detection unit (204).
6. The device (200) as claimed in claim 1, wherein the tilt detection unit (204) includes a hall Integrated Circuit (IC) adapted to detect magnetic flux associated with at least one of the first closed-loop magnetic circuit and the second closed-loop magnetic circuit.
7. The device (200) as claimed in claim 1, wherein a magnetic flux generated from the first permanent magnet (210-1) and a magnetic flux generated from the first magnetic core (212-1) form the first closed-loop magnetic circuit.
8. The device (200) as claimed in claim 1, wherein a magnetic flux generated from the second permanent magnet (210-2) and a magnetic flux generated from the second magnetic core (212-2) form the second closed-loop magnetic circuit.
9. The device (200) as claimed in claim 1, wherein the housing member (202) includes a cavity positioned at a bottom portion of the housing member (202) and adapted to accommodate a balancing weight, wherein the balancing weight is adapted to provide resistance to oscillations of the housing member (202) generated by vibrations and mechanical shocks.
10. The device (200) as claimed in claim 1, wherein each of the first permanent magnet (210-1) and the second permanent magnet (210-2) is a Neodymium magnet (NdFeB).
11. The device (200) as claimed in claim 1, wherein:
each of the first magnetic core (212-1) and the second magnetic core (212-2) is a C-shaped magnetic core having a first surface (218-1) and a second surface (218-2) distal to the first surface (218-1), and

each of the first permanent magnet (210-1) and the second permanent magnet (210-2) is a disc shape magnet having a first surface (216-1) and a second surface (216-2) distal to the first surface (216-1).
The device (200) as claimed in claim 11, wherein:
the first magnetic core (212-1) and the first permanent magnet (210-1) is positioned in the first pocket (206-1) such that the second surface (216-2) of the first permanent magnet (210-1) abuts the first surface (218-1) of the first magnetic core (212-1), and
the second magnetic core (212-2) and the second permanent magnet (210-2) are positioned in the second pocket (206-2) such that the second surface (216-2) of the second permanent magnet (210-2) abuts the first surface (218-1) of the second magnetic core (212-2).
The device (200) as claimed in claim 1, each of the pair of pockets (206) is adapted to be filed with an epoxy material after positioning the pair of permanent magnets (210) and the pair of magnetic cores (212) in the pair of pockets (206).
A vehicle (600) comprising: an engine (604);
a controlling unit (602) in communication with the engine, wherein the controlling unit (602) is configured to operate the engine (604); and
a tilt detection device (200) in communication with the controlling unit (602), wherein the tilt detection device (200) comprising:
a housing member (202) having a pair of pockets (206), wherein the pair of pockets (206) includes a first pocket (206-1) and a second pocket (206-2) positioned at a predefined angle with respect to each other;
a pair of magnetic cores (212) adapted to be disposed in the pair of pockets (206), wherein the pair of magnetic cores (212) includes a first magnetic core (212-1) disposed in the first pocket (206-1) and a second magnetic core (212-2) disposed in the second pocket (206-2);
a pair of permanent magnets (210) adapted to be disposed in the pair of pockets (206), wherein the pair of permanent magnets (210) includes a first

permanent magnet (210-1) and a second permanent magnet (210-2) disposed in the first pocket (206-1) and the second pocket (206-2), respectively,
wherein the first permanent magnet (210-1) abuts the first magnetic core (212-1) in the first pocket (206-1) to form a first closed-loop magnetic circuit and the second permanent magnet (210-2) abuts the second magnetic core (212-2) in the second pocket (206-2) to form a second closed-loop magnetic circuit; and
a tilt detection unit (204) in communication with the controlling unit (602) and
adapted to detect magnetic flux associated with at least one of the first closed-loop
magnetic circuit and the second closed-loop magnetic circuit,
wherein the controlling unit (602) receives information indicative of a value of
magnetic flux density associated with at least one of the first closed-loop magnetic circuit
and the second closed-loop magnetic circuit from the tilt detection unit (204), the
controlling unit (602) operates the engine (604) based on the received information from
the tilt detection unit (204).