DESC:TECHNICAL FIELD
[0001] The present subject matter relates generally to a two-wheeled vehicle. More particularly but not exclusively the present subject matter relates to an automatic mirror adjustment system for the two-wheeled vehicle.

BACKGROUND
[0002] Nowadays, with the advancement in the technology, different types of features have been incorporated in a vehicle. Such features either relates to the safety aspect of the vehicle as well as a rider of the vehicle or provides better riding comfort to the rider of the vehicle. A vehicle includes one or more rear view mirrors disposed in the vehicle. Generally, in a two-wheeled the one or more rear view mirrors are disposed on a handle bar assembly. The one or more rear-view mirrors enable the rider of the vehicle to see behind the vehicle/ or other vehicles coming from behind, without turning his/her head while the vehicle is in riding or in still position. The one or more rear-view mirrors act as a major safety supporting systems which helps the rider in monitoring traffic behind the rider and thus prepares him/her for any potential dangers while riding the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS

[0003] The details are described with reference to an embodiment of a two-wheeled vehicle along with the accompanying diagrams. The same numbers are used throughout the drawings to reference similar features and components.
[0004] Figure 1(a) exemplarily illustrates a side view of a two-wheeled vehicle.
[0005] Figure 1(b) exemplarily illustrates a top view of the two-wheeled vehicle.
[0006] Figure 2 exemplarily illustrates a block diagram for an automatic rear view mirror adjustment as per an embodiment of the present invention.
[0007] Figure 3 exemplarily illustrates a Flowchart illustrating the steps for an automatic rear view mirror adjustment as per an embodiment of the present invention.

DETAILED DESCRIPTION

[0001] One or more rear-view mirrors disposed on a two-wheeled vehicle facilitates a rider of the vehicle in navigating the vehicle in different traffic conditions or on highways. Since, the two-wheeled vehicle is an open type of vehicle and the rider is not seated in a closed environment as compared to a three or four wheeled vehicle, one or more parts enabling the rider in a safe trip is more crucial for the two-wheeled vehicles. The one or more rear view mirrors are disposed on a handlebar assembly, facing towards the rider of the vehicle, so that the rear of the rider is visible to the rider. The rider can keep vigilance on the vehicles by using the rear-view mirrors, coming from behind so as to navigate his/her vehicle accordingly, while moving on roads to avoid any accident due to negligence, rash driving, and in any other types of situations.
[0002] The one or more mirrors are rear view mirrors which is adjusted manually in many vehicles including three-wheeled and four wheeled vehicles. The manual adjustment of the one or more rear-view mirrors, before starting the vehicle, is prone to human error. This leads to mis adjustment of the mirror, causing difficulty for the rider while riding the vehicle. Many-a-times, the rider of the vehicle tends to adjust the vehicle while riding the vehicle itself which is very dangerous as the rider has to take his/her one hand off the handle bar assembly to adjust the one or more rear view mirrors. Letting the rider’s hand off the handle bar assembly and the inattentiveness of the rider can disturb the balance of the vehicle and may lead to collision with nearby vehicles or any other objects in proximity. Apart from this, in case of a shared mobility system or in case of family members of an owner of the vehicle uses the vehicle, there are chances that rider’s of different height uses the vehicle, and they adjust the one or more rear view mirrors accordingly to their height. So, each time a new rider uses the vehicle, the one or more rear view mirrors need to be adjusted, manually adjusting the one or rear view mirror is a tedious task, taking time of the rider, and can also result in human error while adjusting.
[0003] In an attempt to address the problem, many manufacturers are providing a switch operated adjustment means to adjust the one or more rear view mirrors. This solution is well suited for the three or four wheeled vehicle, where the rider is seated in a closed environment and it is difficult for the rider to reach to both of the rear-view mirrors disposed on both front sides of the vehicle, and thus the rider can adjust the mirrors by pressing the switch for adjustment. In this case also, the rider has to let go off his/her hands off a steering assembly of the vehicle for a while to press the switch in order to adjust the rear view mirrors. The switch operated adjustment is also prone to human error as the adjustment is controlled by the rider itself.
[0004] Therefore, there is need to provide an automatic rear view mirror adjustment system which can provide proper positioning of the mirror without requiring the inputs from the rider, thus acting as a safety feature. Thus, there is a need to overcome the above-mentioned problems and other problems of known art.
[0005] An objective of the present subject matter is to provide an automatic rear view mirror adjustment system which can automatically adjust the one or more rear view mirrors, suiting to the rider’s requirement, thus avoiding any fatal accidents and enhancing the riding comfort. The present subject matter is described using an exemplary two-wheeled vehicle, whereas the claimed subject matter can be used in any other type of two-wheeled vehicle, with required changes and without deviating from the scope of invention.
[0006] As per an aspect of the present subject matter, an automatic rear view mirror adjustment system of a two-wheeled vehicle includes one or more rear view mirrors, one or more capturing device, and the one or more control unit. The one or more rear view mirrors is disposed on a handle bar assembly of the vehicle. The one or more capturing device is disposed in a front portion of the vehicle, facing a rider of the vehicle. The one or more control unit is configured to calculate a rider’s height, based on a captured picture using the one or more capturing device. Based on a calculated rider’s height, the one or more control unit is configured to adjust the one or more rear view mirrors.
[0007] As per an aspect of the present subject matter, the system includes a vehicle ignition switch, where the vehicle ignition switch is configured to switch ON or switch OFF the vehicle, the adjustment of the one or more rear view mirrors takes place only when the rider is sitting on a seat assembly of the vehicle, the vehicle ignition is in ON condition, and a handlebar assembly is at an angle of 90 degrees with respect to a longitudinal axis X-X’ passing through the vehicle.
[0008] As per an aspect of the present subject matter, one or more first sensor unit are configured to measure the angle of the handlebar assembly with respect to the longitudinal axis X-X’, the one or more first sensors can be one of a tilt angle sensor and an inclinometer.
[0009] As per an aspect of the present subject matter, the one or more second sensor unit are disposed inside the seat assembly to detect that the rider is sitting on the vehicle before the picture of the rider is captured by the capturing device.
[00010] As per an aspect of the present subject matter, the one or more rear view mirrors are configured to be adjusted by a motor unit.
[00011] As per an aspect of the present subject matter, the motor unit is a stepper motor.
[00012] As per an aspect of the present subject matter, the one or more capturing device is disposed on the handlebar assembly.
[00013] As per an aspect of the present subject matter, the one or more capturing device is disposed in proximity of the instrument cluster.
[00014] As per an aspect of the present subject matter, the one or more capturing device is disposed adjacent to the instrument cluster, where the one or more capturing device is disposed adjacent to the instrument cluster which includes one of a top, bottom, left, and right side of the instrument cluster.
[00015] As per an aspect of the present subject matter, the one or more capturing device is integrated in the instrument cluster.
[00016] As per an aspect of the present subject matter, a method for automatic rear view mirror adjustment of a two-wheeled vehicle, the method comprising the steps of checking by a control unit of the vehicle, a vehicle ignition condition; determining by the control unit, a rider seating position on a seat assembly of the vehicle based on one or more second sensor unit; determining by the control unit, a handlebar assembly angle with respect to a longitudinal axis X-X’, based on one or more first sensor unit; capturing by a capturing device, a rider’s picture, if the vehicle ignition condition is ON, the rider is seating on the seat assembly, and the handlebar assembly angle is equal to 90 degrees with respect to the longitudinal axis X-X’ passing through the vehicle; calculating by the control unit, a rider’s height based on the captured picture by the capturing device; and adjusting one or more rear view mirrors by a motor unit, to move the one or more rear view mirrors in one of a up, down, front, and backward direction based upon the rider’s height.
[00017] As per an aspect of the present subject matter, the method comprising the steps of turning OFF an automatic rear view mirror adjustment system by the control unit, if one of the vehicle ignition condition is OFF, the seat assembly is empty, or the handlebar assembly angle is either greater or less than 90 degrees with respect to the longitudinal axis X-X’.
[00018] The embodiments of the present invention will now be described in detail with reference to a two-wheeled saddle type vehicle along with the accompanying drawings. However, the present invention is not limited to the present embodiments and is applicable on any type of two-wheeled vehicle. The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[0008] Fig.1(a) exemplarily illustrates a side view of a two-wheeled vehicle 100. Fig.1(b) exemplarily illustrates a top view of the two-wheeled vehicle 100. Fig.1(a) and fig.1(b) shall be discussed together. The two-wheeled vehicle 100 comprising a frame assembly (not shown), a front fork assembly 102, a handle bar assembly 104, a headlamp assembly 106, and a prime mover (not shown). The vehicle 100 includes a front portion F and a rear portion R of the vehicle 100. A longitudinal axis X-X’ is passing through a centre of the vehicle 100 from the front portion F to the rear portion R in a longitudinal direction of the vehicle 100, as shown in fig.1(a). The vehicle 100 includes the prime mover, disposed behind a floorboard assembly 108 and below a seat assembly 110 and/or a storage box (not shown). The prime mover is one of an internal combustion engine or an electric motor adapted to provide motive force for vehicle movement. The vehicle 100 includes a front wheel 112 and a rear wheel 114. The front fork assembly 102 supports the front wheel 112. The upper portion of the front wheel 112 is covered by a front fender 116 mounted to the front fork assembly 102. In an embodiment, the front fender 116 is movable along with the front wheel 112, during travel over undulations on a road surface. The handlebar assembly 104 is fixed to an upper bracket (not shown) and can rotate about a steering shaft (not shown) for turning the vehicle 100. The headlamp 106 and an instrument cluster 118 are arranged on an upper portion of the frame assembly. A rear suspension 120 is provided to the rear wheel 114 for dampening the vibrations induced during travel of the vehicle 100 over undulations on the road surface. A grab rail 122 is also provided for facilitating the grip and/or balance to the rider on the vehicle 100 during movement. The rear wheel 114 is arranged below the seat assembly 110 and adapted to receive the motive force from the prime mover. A suitable transmission assembly 124 is provided for transferring the drive force from the prime mover onto the rear wheel 114 for driving the vehicle 100.
[00019] Fig.2 exemplarily illustrates a block diagram for an automatic rear view mirror adjustment system as per an embodiment of the present invention. The automatic rear view mirror adjustment system 200 includes one or more capturing device 202, one or more control unit 204, one or more rear view mirrors 206, and a vehicle ignition switch 208. The one or more capturing device 202 captures a picture of the rider of the vehicle 100. The capturing device 202 may include one of the smart device cameras, a high-definition camera, an on-body vehicle camera and the like. The one or more rear view mirror 104a is provided on the handle bar assembly 104 of the two-wheeled vehicle 100 for the rider. The rear-view mirrors 104a facilitate the rider to be able to view the vehicles coming from behind, to navigate the two-wheeled vehicle 100 accordingly, while moving on roads to avoid any accident due to negligence, rash driving, and in any other types of situations. The one or more rear-view mirrors 104a are placed on both the sides of the handlebar assembly so that the rider is aware of the vehicles coming from behind both on a right side as well as a left side of the vehicle 100. The one or more control unit 204 can be a vehicle control unit or a dedicated control unit as well. The vehicle ignition switch 208 is provided in a front portion of the vehicle 100, below the handle bar assembly 104, facing towards the rider. The one or more capturing device 202 is disposed in a front portion F of the vehicle 100. In an embodiment, the one or more capturing device 202 is disposed on the handle bar assembly 104, facing a rider of the vehicle 100. In an embodiment, the one or more capturing device 202 is disposed in proximity of the instrument cluster 118 of the vehicle 100. In another embodiment, the one or more capturing device 202 is disposed adjacent to the instrument cluster 118, where the one or more capturing device 202 is disposed adjacent to the instrument cluster 118 which includes one of a top, bottom, left, and right side of the instrument cluster 118.
[00020] In an embodiment, the one or more capturing device 202 can be powered through a primary power source and a secondary power source. In another embodiment the one or more capturing device 202 can be powered through an inbuilt power source. In yet another embodiment, the one or more capturing device 202 can be operated through an internal combustion engine (not shown) of the vehicle 100. In another embodiment, the one or more capturing device 202 is integrated with the instrument cluster 118. Once the vehicle ignition switch 208 is activated, the rider sits on the vehicle 100, and the handlebar assembly 104 of the vehicle 100 is at 90 degrees with respect to the longitudinal axis X-X’ passing through the vehicle 100 from the front portion F to the rear portion R. The one or more capturing device 202 captures the picture of the rider. The seat assembly 110 of the vehicle 100 includes one or more second sensors (not shown) to sense that the rider is sitting on the vehicle 100 before taking the picture of the rider.
[00021] Based on the captured picture, the one or more control unit 204 calculates the height of the rider. Based on the calculated height of the rider, the control unit 204 is configured to control a motor unit (not shown) to adjust the one or more rear view mirror 104a to suit the height of the rider, facilitating automatic adjustment of the one or more rear-view mirror 104a for ensuring safety of the rider and ensuring riding comfort. In an embodiment the motor unit is a stepper motor. However, any type of motor can be utilized to move the one or more rear-view mirrors 104a.
[00022] Fig.3 exemplarily illustrates a Flowchart illustrating the steps for an automatic rear view mirror adjustment as per an embodiment of the present invention. The proposed method controls a position of the one or more rear view mirrors 104a automatically whenever the vehicle 100 is in ON condition. To automatically control the position of the one or more rear-view mirrors 104a, the control unit 204 in the vehicle checks the vehicle ignition condition and confirms if the vehicle ignition switch 208 is activated by means of an ignition key (not shown) to an ON condition (at step 300). The control unit 204 further checks whether the rider is sitting on the seat assembly 110 or not. The one or more second sensors placed inside the seat assembly 110 senses a weight of the rider to ensure that the rider is seated on the seat assembly 110 (at step 302). In an embodiment, the weight of the rider should be more than a predetermined value. The predetermined value should be more than 35 kgs. The control unit 204 further checks whether the handlebar assembly 104 angle is at a predefined angle or not (at step 304). The predefined angle is 90 degrees with respect respect to the longitudinal axis X-X’ passing through the vehicle 100. One or more first sensors (not shown) are configured to measure the handlebar assembly 104 angle. The one or more first sensors can be one of a tilt angle sensor and an inclinometer. The pre-determined adjustment angle is pre-stored in the control unit 204.
[00023] In the present embodiment, the control unit 204 checks if the handlebar assembly 104 is tilted at one side, if the handlebar 104 is tilted at one side that means the vehicle 100 itself is tilted at that side as well. Also, if the handlebar assembly 104 is rotated at either of one side of the vehicle 100, then the adjustment of the one or more rear view mirrors 104a will be inaccurate. So, the control unit 204 do not make any adjustment in the rear-view mirrors 104a in above mentioned condition, as it will lead to wrong adjustment of the rear-view mirrors 206. Therefore, after satisfying all the above three conditions that is the rider is in sitting on the seat assembly 110, the vehicle ignition key is in ON position, and the handlebar assembly 104 is at the angle of 90 degrees with respect to a longitudinal axis X-X’ passing through the vehicle 100, then only the control unit 204 captures the picture of the rider (at step 306). Based on the captured picture, the control unit 204 calculates the height of the rider (at step 308). After calculating the height, the control unit 204 adjusts the one or more rear view mirrors 104a by moving it up, down, front, and backward direction based upon the rider’s height (at step 310). For example, if a rider is a long heighted person, the one or more rear view mirrors 104a will be adjusted automatically by moving the one or more rear view mirrors 104a in up direction and in backward direction to give full and accurate view of the vehicles coming from the rear side of the two-wheeled vehicle 100. The one or more control unit 204 employs the motor unit to move the one or more rear view mirrors 104a in up, down, front, and backward direction. The automatic rear view mirror adjustment system 200 is turned OFF an by the control unit 204, any one of the three condition is not met, which means if one of the vehicle ignition condition is OFF, the seat assembly 110 is empty, or the handlebar assembly 104 angle is either greater or less than 90 degrees with respect to the longitudinal axis X-X’, the system 200 will not be turned ON.
[00024] The present invention provides an automatic mirror adjustment system 200 which automatically adjusts the one or more rear view mirrors 104a in accordance with the height of the rider of the vehicle 100. This eliminates any error in rear view mirror adjustment due to human error, eliminating any navigating difficulty to the rider while riding the vehicle 100. The present invention removes the necessity of letting the rider’s hand off the handle bar assembly 104 while riding, thus ensuring safety and enhancing riding comfort, while riding the vehicle 100. Many other improvements and modifications may be incorporated herein without deviating from the scope of the invention.

List of Reference numerals
100: Two-wheeled vehicle
102: Front fork assembly
104: Handle bar assembly
104(a): One or more rear view mirrors
106: Headlamp assembly
108: Floorboard assembly
110: Seat assembly
112: Front wheel
114: Rear wheel
116: Front fender
118: Instrument cluster
120: Rear suspension
122: Grab rail
124: Transmission assembly
200: Automatic rear view mirror adjustment system
126/202: One or more capturing device
204: One or more control unit
208: Vehicle ignition switch
210: Rider
,CLAIMS:We claim:
1. An automatic rear view mirror adjustment system (200) of a two-wheeled vehicle (100) comprising:
one or more rear view mirrors (104a), the one or more rear view mirrors (104a) is disposed on a handle bar assembly (104) of the two-wheeled vehicle (100);
one or more capturing device (202), the one or more capturing device (202) is disposed in a front portion (F) of the vehicle, facing a rider of the vehicle (100); and
one or more control unit (204);
wherein,
the one or more control unit (204) is configured to calculate a rider’s height, based on a captured picture using the one or more capturing device (202); and
based on a calculated rider’s height, the one or more control unit (204) is configured to adjust the one or more rear view mirrors (104a).

2. The automatic rear view mirror adjustment system (200) as claimed in claim 1, wherein the system (200) includes a vehicle ignition switch (208), where the vehicle ignition switch (208) is configured to switch ON or switch OFF the vehicle (100), the adjustment of the one more or rear view mirrors (104a) takes place only when the rider is sitting on a seat assembly (110) of the vehicle (100), the vehicle ignition is in ON condition, and a handlebar assembly (106) is at an angle of 90 degrees with respect to a longitudinal axis X-X’ passing through the vehicle (100).
3. The automatic rear view mirror adjustment system (200) as claimed in claim 2, wherein one or more first sensor unit are configured to measure the angle of the handlebar assembly (104) with respect to the longitudinal axis X-X’, the one or more first sensors can be one of a tilt angle sensor and an inclinometer.
4. The automatic rear view mirror adjustment system (200) as claimed in claim 2, wherein one or more second sensor unit are disposed inside the seat assembly (110) to detect that the rider is sitting on the vehicle (100) before the picture of the rider is captured by the one or more capturing device (202).
5. The automatic rear view mirror adjustment system (200) as claimed in claim 1, wherein the one or more rear view mirrors (104a) are configured to be adjusted by a motor unit.
6. The automatic rear view mirror adjustment system (200) as claimed in claim 5, wherein the motor unit is a stepper motor.
7. The automatic rear view mirror adjustment system (200) as claimed in claim 1, wherein the one or more capturing device (202) is disposed on the handlebar assembly (104).
8. The automatic rear view mirror adjustment system (200) as claimed in claim 1, wherein the one or more capturing device (202) is disposed in proximity of the instrument cluster (118).
9. The automatic rear view mirror adjustment system (200) as claimed in claim 8, wherein the one or more capturing device (202) is disposed adjacent to the instrument cluster (118), wherein the one or more capturing device (202) is disposed adjacent to the instrument cluster (118) which includes one of a top, bottom, left, and right side of the instrument cluster (118).
10. The automatic rear view mirror adjustment system (200) as claimed in claim 1, wherein the one or more capturing device (202) is integrated in the instrument cluster (118).
11. A method for automatic rear view mirror adjustment of a two-wheeled vehicle (100), the method comprising the steps of:
checking by a control unit (204) of the vehicle (100), a vehicle ignition condition (at step 300);
determining by the control unit (204), a rider seating position on a seat assembly (110) of the vehicle (100), based on one or more second sensor unit (at step 302);
determining by the control unit (204), a handlebar assembly (104) angle with respect to a longitudinal axis X-X’, based on one or more first sensor unit (at step 304);
capturing by one or more capturing device (202), a rider’s picture, if the vehicle ignition condition is ON, the rider is seating on the seat assembly (110), and the handlebar assembly (104) angle is equal to 90 degrees with respect to the longitudinal axis X-X’ passing through the vehicle (100) (at step 306);
calculating by the control unit (204), a rider’s height based on the captured picture by the one or more capturing device (202) (at step 308); and
adjusting one or more rear view mirrors (104a) by a motor unit, to move the one or more rear view mirrors (104a) in one of a up, down, front, and backward direction based upon the rider’s height (at step 310).

12. The method for automatic rear view mirror adjustment as claimed in claim 11, wherein the method comprising the steps of turning OFF an automatic rear view mirror adjustment system by the control unit (204), if one of the vehicle ignition condition is OFF, the seat assembly (110) is empty, or the handlebar assembly (104) angle is either greater or less than 90 degrees with respect to the longitudinal axis X-X’.