Description:FIELD OF THE INVENTION
[001] The present invention generally relates to a two-wheeled vehicle. More particularly, the present invention relates to disposition of a communication device in the two-wheeled vehicle.

BACKGROUND OF THE INVENTION
[002] Generally, in a keyless system for two-wheeled vehicles, a wireless communication is performed between a communication device mounted on the vehicle and an electronic key carried by a user for authenticating and unlocking or locking the vehicle. Usually, a low frequency antenna, also known as a LF antenna is provided as the communication device. Conventionally, the LF antenna is mounted on rear end of the two-wheeled vehicle. The LF antenna is configured to perform an authentication of the electronic key. To unlock the vehicle, the user presses the electronic key, and the LF antenna receives the corresponding signals and transmits the signals to the keyless ignition lock, establishing communication with the keyless ignition lock. Once authenticated, the vehicle is unlocked, allowing the rider to start and operate it.
[003] Since the LF antenna is mounted on the rear end of the two-wheeled vehicle, the LF antenna is covered by metallic components of the vehicle leading to signal interference in the LF antenna. Such a disposition of the LF antenna in the rear portion of the two-wheeled vehicle is undesirable because it causes disruption in the reception of communication signals from the electronic key. Thus, it is necessary to mount the communication device in a location which can provide for adequate and reliable transmission and reception of the communication signals.
[004] However, in conventional two-wheeled vehicles, the LF antenna is mounted in such an arrangement that the metallic component of the vehicle surrounds the LF antenna, thus leading to signal interference. This signal interference significantly degrades the performance of the keyless system and cause difficulties in unlocking the vehicle, rendering the keyless system unreliable and inefficient. Further, the placement of the LF antenna in the rear end of the two-wheeled vehicle also causes additional wire harnessing and wire length to connect to other components of the vehicle. This in turn increases cost and labour in installation and maintenance.
[005] Thus, there is a need in the art for a two-wheeled vehicle, which addresses at least the aforementioned problems.

SUMMARY OF THE INVENTION
[006] In one aspect, the present invention is directed towards a two-wheeled vehicle. The two-wheeled vehicle has a head tube and one or more down tubes extending rearwardly and downwardly from the head tube in a vehicle front-rear direction. The two-wheeled vehicle further has one or more communication devices disposed on a rear portion of the head tube when seen in the vehicle front-rear direction and above the one or more down tubes.
[007] In an embodiment of the invention, the two-wheeled vehicle has a battery cover disposed on the rear portion of the head tube. The one or more communication devices is disposed on the battery cover.
[008] In a further embodiment of the invention, the two-wheeled vehicle has one or more main tubes extending rearwardly from the head tube and positioned above the one or more down tubes in the vehicle front-rear direction. The battery cover is disposed at an intersection of the head tube, the one or more main tubes and the one or more down tubes.
[009] In a further embodiment of the invention, the two-wheeled vehicle has an attachment means disposed on the battery cover. Herein, the one or more communication devices being mounted on the attachment means.
[010] In a further embodiment of the invention, the attachment means positioned on the rear portion of the head tube between a first end and a second end of the head tube and at the intersection of the head tube, the one or more main tubes and the one or more of down tubes.
[011] In a further embodiment of the invention, the two-wheeled vehicle has a mounting bracket for mounting a seat assembly on the mounting bracket. The seat assembly surrounds the one or more communication devices.
[012] In a further embodiment of the invention, the mounting bracket disposed on the rear portion of the head tube and above the one or more communication devices in the vehicle front-rear direction.
[013] In a further embodiment of the invention, the two-wheeled vehicle has a plurality of fasteners for mounting the one or more communication devices on the attachment means.
[014] In a further embodiment of the invention, the one or more communication devices comprises a LF antenna.
[015] In a further embodiment of the invention, the one or more communication devices is configured to send and receive signals from one or more external devices and one or more vehicle components.
[016] In a further embodiment of the invention, the one or more down tubes tube has a left down tube and a right down tube extending rearwardly and downwardly from the head tube.
[017] In a further embodiment of the invention, the one or more main tubes has a left main tube and a right main tube extending rearwardly from the head tube and positioned above the one or more down tubes in the vehicle front-rear direction.
[018] In a further embodiment of the invention, the attachment means covers a plurality of wire harness.

BRIEF DESCRIPTION OF THE DRAWINGS
[019] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
Figure 1 illustrates a left side view of a two-wheeled type vehicle, in accordance with an embodiment of the present invention.
Figure 2 illustrates a left top perspective view of the two-wheeled vehicle, in accordance with an embodiment of the present invention.
Figure 3 illustrates another left top view of the two-wheeled vehicle, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
[020] The present invention generally relates to a two-wheeled vehicle. More particularly, the present invention relates to disposition of a communication device in the two-wheeled vehicle.
[021] Figure 1 illustrates a left side view of the two-wheeled vehicle 100 in accordance with an embodiment of the invention. As illustrated in Figure 1, the two-wheeled vehicle 100 includes a frame structure. The frame structure includes a head tube 102, a pair of main tubes 106A, 106B (shown in Figure 2) and a pair of down tubes 108A, 108B (shown in Figure 2). The pair of down tubes 108A, 108B extends rearward and slantly downward from the head tube 102 in a vehicle front-rear direction. The pair of main tubes 106A, 106B are positioned above the pair of down tubes 108A, 108B and extends rearwardly from the head tube 102 in the vehicle front-rear direction.
[022] The two-wheeled vehicle 100 further includes a battery cover 110 disposed on the rear portion of the head tube 102. The battery cover 110 encloses a battery of the two-wheeled vehicle. As illustrated in Figure 2, the battery cover 110 is disposed at an intersection of the head tube 102, the pair of main tubes 106A, 106B and the pair of down tubes 108A, 108B.
[023] As further illustrated in Figure 1, the two-wheeled vehicle 100 further has at least one communication device 104. The communication device 104 is disposed on a rear portion of the head tube 102 when seen in the vehicle front-rear direction and above the one or more down tubes 108A, 108B. The communication device 104 may be a LF antenna configured to send and receive signals from one or more external devices and one or more vehicle components.
[024] Herein, as referenced in Figure 2, the communication device 104 is disposed on the battery cover 110. Such a disposition of the communication device 104 allows the communication device 104 to be located closer to the outer environment enabling reception of communication signal from all directions. Further, disposition of the communication device 104 on the battery cover 110 ensures that the communication device 104 is not covered by any metal components of the two-wheeled vehicle, thereby preventing signal interference, and enabling reliable and efficient communication between the communication device 104 and the electronic key (not shown).
[025] As further illustrated in Figure 2, the two-wheeled vehicle 100 further has at least one mounting bracket 112. The mounting bracket 112 is mounted on the rear portion of the head tube 102 and above the communication device 104 in the vehicle front-rear direction. The mounting bracket 112 is configured to mount a seat assembly. Such a disposition of the mounting bracket 112 above the communication device 104 allows a seat assembly (not shown) to be mounted enclosing the communication device 104. Further, disposition of the communication device 104 below the mounting bracket 112 ensures that the communication device 104 is surrounded by plastic components and thereby preventing signal interference. Further, since the communication device 104 is sufficiently covered by the seat assembly makes such an arrangement more aesthetically pleasing and at the same time protecting the communication device 104 from any damage or fear of tampering.
[026] In an embodiment, as referenced in Figure 3, the pair down tubes 108A, 108B comprise of a left down tube 108A and a right down tube 108B that extend rearward and downward from the head tube 102. Further, the pair of main tubes 106A, 106B comprise of a left main tube 106A and a right main tube 106B that extend rearward from the head tube 102 and positioned above the pair of down tubes 108A 108B in the vehicle front-rear direction. In the embodiment depicted in Figure 3, an attachment means 114 is disposed on the battery cover 110. More specifically, the attachment means 114 is positioned on the rear portion of the head tube 102 between a first end and a second end of the head tube 102 and at the intersection of the head tube 102, the pair of main tubes 106A, 106B and the pair of down tubes 108A,108B. The attachment means 114 is configured to cover a plurality of wire harness.
[027] As further illustrated in Figure 2 and Figure 3, the two-wheeled vehicle 100 further comprises a plurality of fasteners 116. The plurality of fasteners 116 fix the communication device 104 on to the attachment means 114. The disposition of the communication device 104 on the attachment means 114 ensures that the communication device 104 is facing the outer environment enabling reception of communication signal from all directions. Further, disposition of the communication device 104 on the attachment means 114 ensures that the communication device 104 is not covered by any metal components of the two-wheeled vehicle, thereby preventing signal interference, and enabling reliable and efficient communication between the communication device 104 and the electronic key (not shown).
[028] Advantageously, the present invention provides for a two-wheeled vehicle in which a communication device, for example the LF antenna disposed on a rear portion of the head tube when seen in the vehicle front-rear direction and above the one or more down tubes, such that the location of the communication device is towards the outer environment and thus enabling reception of communication signal from all directions. The present invention ensures that the communication device is not covered by any metal components of the two-wheeled vehicle, thereby preventing signal interference, and enabling reliable and efficient communication between the communication device and the electronic key, in contrast to the conventional placement of the LF antenna on the rear portion of the vehicle which is covered by metal components leading to signal interference and failure of the keyless ignition lock in the two-wheeled vehicle.
[029] In the existing vehicles, the ignition lock is placed around the instrument cluster and the users tend to locate the key close to the cluster panel area. Therefore, the disposition of the communication device on the rear portion of the head tube when seen in the vehicle front-rear direction enables the user to hold the electronic key closer to this area ensuring easy and reliable reception of the communication signal by the communication device when the electronic key is pressed by the user. Since, the users are highly experienced in locating that key based ignition lock around the instrument cluster.
[030] Further, by provision of the mounting bracket disposed on the rear portion of the head tube and above the communication device for mounting of a seat assembly, the communication device in the present invention is covered by plastic components, thus preventing signal interference and ensuring efficient and reliable reception and transmission of the communication signals.
[031] Further, the communication device is sufficiently covered by the seat assembly making such an arrangement more aesthetically pleasing and at the same time protecting the communication device from any damage or fear of tampering resulting in enhanced safety.
[032] Further, the communication device is mounted on to the attachment means via minimal use of fasteners making assembly easier and less sophisticated. In addition, such disposition of the communication device on the rear portion of the head tube allows the communication device to be disposed close to the keyless ignition unit, thus lowering the length of cable required to connect the communication device to the keyless ignition unit. Thereby the length of the cables used herein is optimized and this leads to cost saving in terms of length of cable used.
[033] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.

List of Reference Numerals
100: Two-wheeled Vehicle
102: Head Tube
104: Communication Device
106A, 106B: Pair of Main Tubes
106A: Left Main tube
106B: Right Main tube
108A, 108B: Pair of Down Tubes
108A: Left Down tube
108B: Right Down tube
110: Battery Cover
112: Mounting Bracket
114: Attachment Means
116: Plurality of Fasteners
, Claims:1. A two-wheeled vehicle (100), comprising:
a head tube (102);
one or more down tubes (108A, 108B) extending rearwardly and downwardly from the head tube (102) in a vehicle front-rear direction; and
one or more communication devices (104) being disposed on a rear portion of the head tube (102) when seen in the vehicle front-rear direction and above the one or more down tubes (108A, 108B).

2. The two-wheeled vehicle (100) as claimed in claim 1 comprising a battery cover (110) being disposed on the rear portion of the head tube (102), wherein
the one or more communication devices (104) being disposed on the battery cover (110).

3. The two-wheeled vehicle (100) as claimed in claim 2 comprising one or more main tubes (106A, 106B) extending rearwardly from the head tube (102) and positioned above the one or more down tubes (108A, 108B) in the vehicle front-rear direction, wherein
the battery cover (110) being disposed at an intersection of the head tube (102), the one or more main tubes (106A, 106B) and the one or more down tubes (108A, 108B).
4. The two-wheeled vehicle (100) as claimed in claim 2 comprising an attachment means (114) being disposed on the battery cover (110), wherein
the one or more communication devices (104) being mounted on the attachment means (114).

5. The two-wheeled vehicle (100) as claimed in claim 4, wherein the attachment means (114) being positioned on the rear portion of the head tube (102) between a first end and a second end of the head tube (102) and at the intersection of the head tube (102), the one or more main tubes (106A, 106B) and the one or more of down tubes (108A,108B).

6. The two-wheeled vehicle (100) as claimed in claim 1 comprising a mounting bracket (112) for mounting a seat assembly on the mounting bracket (112), wherein the seat assembly surrounds the one or more communication devices (104).

7. The two-wheeled vehicle (100) as claimed in claim 6, wherein the mounting bracket (112) being disposed on the rear portion of the head tube (102) and above the one or more communication devices (104) in the vehicle front-rear direction.

8. The two-wheeled vehicle (100) as claimed in claim 4 comprising a plurality of fasteners (116) for mounting the one or more communication devices (104) on the attachment means (114).

9. The two-wheeled vehicle as claimed in claim 1, wherein the one or more communication devices (104) comprises a LF antenna.

10. The two-wheeled vehicle (100) as claimed in claim 1, wherein the one or more communication devices (104) being configured to send and receive signals from one or more external devices and one or more vehicle components.

11. The two-wheeled vehicle (100) as claimed in claim 1, wherein the one or more down tubes comprise of a left down tube (108A) and a right down tube (108B) extending rearwardly and downwardly from the head tube.

12. The two-wheeled vehicle (100) as claimed in claim 3, wherein the one or more main tubes comprise of a left main tube (106A) and a right main tube (106B) extending rearwardly from the head tube and positioned above the one or more down tubes in the vehicle front-rear direction.

13. The two-wheeled vehicle (100) as claimed in claim 4, wherein the attachment means (114) covers a plurality of wire harness.