FIELD OF THE INVENTION:

This invention relates to a seating arrangement. In particular, the invention relates to an adjustable seating system for a vehicle to increase the leg space of a passenger.

BACKGROUND OF THE INVENTION:

With the increase in connectivity between cities, there has been an enormous focus in development of intercity buses. A lot of work is carried on to make the intercity buses more passengers friendly.

One feature that is sought after is enhancing comfort to the passengers. Being an intercity bus is prone to travel longer distances and it becomes imperative to provide a comfortable journey to the passengers.

Another feature that is sought after, more crucial to the bus operator is the occupancy. For better revenue it is preferred to have maximum possible seats on the bus and yet not compromising on the comfort of the passengers.

It is observed that the intercity buses are not always operated in full occupancy i.e. not all seats are occupied every time. The buses are to be operated despite being partially occupied. In such scenarios there is no gain from the unused seats, neither to the operators nor to the passengers.

It would be ideal to have the idle space of the unoccupied seats being utilized to enhance the comfort of the passengers in the occupied seats. This could be done by moving all the unoccupied seats to a side, thereby gaining free space which can be distributed among the occupied seats.

This is not possible in the present day intercity buses as the seating arrangement is rigid i.e. the seats are rigidly fastened to the floor.

Therefore in light of the above discussion, there is a need to develop an adjustable seating system which enables to take out the space from the unoccupied seat assemblies and utilizes it for the occupied seat assemblies.

OBJECTS OF THE INVENTION:

The principle object of the invention is to provide an adjustable seating system which extracts the space from unoccupied seat assemblies and utilizes it to enhance comfort for the passengers in the occupied seat assemblies.

Another object of the invention is to design a seat assembly which is collapsible in nature. This feature of the seat assembly enables it to be compressed when unoccupied thereby creating voids in the vicinity.

Yet another object of the invention is to design a seat sliding mechanism which would aid in forward or rearward movement of the seat assembly inside the saloon. Furthermore the seat
sliding mechanism is accompanied by a brake mechanism to enable arresting the movement of the seat assembly once the seat assembly has reached the intended position.

SUMMARY OF THE INVENTION:

Before the present system is described, it is to be understood that this invention is not limited to the particular systems described, as these may vary. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the present invention which will be limited only by the appended claims.

The present invention provides an adjustable seating system for a vehicle system which enables to take out the space from the unoccupied seat assemblies and utilizes it for the occupied seat assemblies. The vehicle can be any one of the followings such as bus, train, ship and aircraft, etc.

According to one embodiment of the invention, an adjustable seating system for a vehicle, wherein said system comprising a seat assembly, a sliding mechanism, a brake mechanism and a control system, etc.

In one aspect of the invention, the seat assembly comprises of lumbar and cushion installed at predefined angles which are collapsible in nature. The cushion is installed parallel to the plane of the floor and the lumbar is installed at a minimum angle of 12 degrees with the plane perpendicular to the plane of the floor. In another aspect, the seat assembly comprises of lumbar, cushion and calf support based on the requirements. The seat assembly is supported with a pair of legs. In another aspect, the seat assembly comprises of single seater or double seater based on the requirements.

In one aspect, the seat assembly is mounted on a pair of rails running beneath the seat assembly longitudinally along the entire length of a passenger saloon of the vehicle, wherein the pair of rails having a friction lining installed along the entire length of the rails which serves as counter surface to the brake mechanism.

In another aspect, the rails fixed to the floor of the vehicle, wherein fixing the rails to the floor can be done by using any one of the technologies known in the art.

In another aspect, to enable the movement of the seat assembly, a sliding mechanism integrated with a bottom of each seat assembly for sliding the seat assembly on the pair of rails. In one exemplary aspect, the sliding mechanism comprises of a pair of wheels mounted on a shaft driven by a single motor through a spur gear train, wherein the motor comprises of servo motor, stepper motor and linear motor, etc. In a preferred aspect, the motor is selected as either servo motor or stepper motor based on the requirements.

In one aspect, the motor is activated on receiving a signal from the control system which in turn runs the wheels mounted on the seat assembly to slide the seat assembly forward or backward in a longitudinal direction on the pair of rails. In another aspect, direction of sliding the seat assembly can be reversed by changing the polarity of the motor.

In one aspect, to stop the movement of the seat assembly, a brake mechanism integrated in the seat assembly for holding the seat assembly rigidly in an intended location. In one exemplary aspect, the brake mechanism integrated with the pair of legs.

In another exemplary aspect, the brake mechanism may be selected from any one of pneumatic system, clutch assembly and etc.

In a preferred aspect, the brake mechanism comprises of a movable friction lining mounted on a plate and is held in place against the friction lining of the pair of rails by a spring. The brake mechanism further comprises of a solenoid installed behind the plate co-axial to the spring.

In one aspect, the control system is installed on the vehicle, wherein the control system communicatively coupled with the sliding mechanism and the brake mechanism for managing posture and position of the seat assembly inside the passenger saloon. In one exemplary aspect, the control system installed in front of a driver/user of the vehicle.

In one exemplary aspect, the control system comprises of a user friendly console provided for the driver on the dashboard. The user/driver may input the number of passenger boarding the vehicle based on which the control system manages the seat assemblies inside the passenger saloon accordingly.

In another aspect, the control system sends control signals, based on the input received from the driver/user, to sliding mechanism and the brake mechanism for folding the lumbar, cushion and calf support of the unoccupied seat assemblies, and aligning vertically with each other. In one exemplary aspect, the sliding mechanism and the brake mechanism use any one of the technologies known in the art for folding the lumbar, cushion and calf support of the unoccupied seat assemblies and aligning vertically with each other.

Upon aligning the seat assemblies vertically, the solenoid pulls back the plate opposing the force of the spring enabling the disengagement of the movable friction lining of the brake mechanism from the friction lining of the pair of rails when the solenoid is turned on based on a signal received from the control system. This acts as a failsafe arrangement keeping the brake mechanism always engaged and thereby retaining the seat assemblies rigid in place.

Then the control system moves the aligned seat assemblies to a rear of the vehicle for gaining a significant void inside the passenger saloon. Subsequently, the spring recoils to engage the movable friction lining of the brake mechanism with the friction lining of the pair of rails to hold the seat assembly in the intended position when the solenoid is turned off based on a signal received from the control system.

Upon moving and holding the aligned seat assemblies in the rear of the vehicle, the control system sends control signals to sliding mechanism and the brake mechanism for aligning the lumbar, cushion and calf support of the occupied seat assemblies in the normal seating posture, and reclining the seat assemblies at a predefined angle selected from 1 degree to 78 degrees with the plane of the lumbar utilizing the gained void thereby increasing the leg space of the passenger. In one exemplary aspect, the sliding mechanism and the brake
mechanism use any one of the technologies known in the art for aligning the lumbar, cushion and calf support of the occupied seat assemblies in the normal seating posture, and reclining the seat assemblies at a predefined angle.

On further availability of space ahead or behind, the control system sends control signals to sliding mechanism and the brake mechanism for reclining the seat assemblies at 78 degrees with the plane of the lumbar to form a berth utilizing the gained void on which the passenger can rest at supine position. In one exemplary aspect, the sliding mechanism and the brake mechanism use any one of the technologies known in the art for reclining the seat assemblies.

Upon forming the berth, the spring recoils to engage the movable friction lining of the brake mechanism with the friction lining of the pair of rails to hold the seat assembly in the intended position when the solenoid is turned off based on a signal received from the control system.

BRIEF DESCRIPTION OF THE DRAWINGS:

The foregoing summary, as well as the following detailed description of preferred embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there is shown in the drawings example constructions of the invention; however, the invention is not limited to the specific system disclosed. In the drawings:

Figure 1 illustrates the seat assembly in normal and the collapsed condition according to one embodiment of the invention.

Figure 2 shows side view of bus with seat assemblies in normal order according to one embodiment of the invention.

Figure 3 shows side view of bus with occupied seat assemblies repositioned at enhanced pitch and unoccupied seat assemblies collapsed in rear according to various embodiments of the invention.

Figure 4 shows the integrated sliding mechanism with the seat assembly comprising the wheels, motor and brake mechanism according to various embodiments of the invention.

Figure 5 shows the detailed view of the brake mechanism as shown in Figure 4.

Figure 6 shows the seat assembly with the sliding mechanism resting over the rails according to one exemplary embodiment of the invention.

Figure 7 shows isometric view of the seat assembly as in a sleeper arrangement according to one exemplary embodiment of the invention.

Figure 8 shows a detailed view of the seat assembly in a sleeper arrangement as shown in Figure 7.

Figure 9 shows the driver console for the seating system as seen on the dashboard according to one exemplary embodiment of the invention.

Figure 10 represents the electronic architecture with stepper motor according to various embodiments of the invention.

Figure 11 represents the electronic architecture with servo motor according to various embodiments of the invention.

Figure 12 represents a flowchart for moving the seat assembly using stepper motor according to one exemplary embodiment of the invention.

Figure 13 represents a flowchart for moving the seat assembly using servo motor according to one exemplary embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION:

Some embodiments of this invention, illustrating all its features, will now be discussed in
detail. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items
following any one of these words is not meant to be an exhaustive listing of such item or
items, or meant to be limited to only the listed item or items.

It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. Although any systems similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred systems are now described.

The disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms by a person skilled in the art.

The present invention provides an adjustable seating system for a vehicle system which enables to take out the space from the unoccupied seat assemblies and utilizes it for the occupied seat assemblies. According to one aspect, the vehicle can be any one of the followings such as bus, train, ship and aircraft, etc.
According to one embodiment of the invention, an adjustable seating system for a vehicle, wherein said system comprising a seat assembly, a sliding mechanism, a brake mechanism and a control system, etc. The seating system comes into action only during the case of partial occupancy in the vehicle.

In one exemplary aspect, the seat assembly as shown in Figure 1 comprises of the lumbar (2), the cushion (3) and the calf support (4) installed at predefined angles and the whole assembly is supported by a pair of legs (5). The cushion (3) is installed parallel to the plane of the floor and the lumbar (2) is installed at a minimum angle of 12 degrees with the plane perpendicular
to the plane of the floor. This assembly can be either of single seater or double seater, yet the overall architecture remains same as mentioned above.

In another exemplary aspect, the seat assembly (1) comprises of lumbar (2) and cushion (3). There are lot of intercity/tourist type seat assemblies available in the market which have lot of options such as control of torso angle (lumbar (2) reclining), and the calf support (4) adjustment, etc. Seat assemblies (1) of similar types may also be used based on the requirements.

The seat assembly (1) inside the vehicle, for example, bus unlike the conventional arrangement are not rigidly fixed to floor rather are capable of sliding over a pair of rails (6) fixed on to the floor. This enables the seat assemblies (1) to be moved forward and rearward in the longitudinal direction. According to one exemplary aspect, fixing the rails (6) to the floor can be done by using any one of the technologies known in the art.

In a preferred aspect, as shown in Figures 4, 5 and 6, the seat assembly (1) is mounted on the pair of rails (6) running beneath the seat assembly (1) longitudinally along the entire length of a passenger saloon of the vehicle. In one exemplary aspect, the saloon of the vehicle may be chosen based on the type of the vehicle. In case the vehicle is as an aircraft/airplane then the saloon may be chosen as the space wherein the seat assemblies (1) are freely movable.

In one exemplary aspect, to enable the movement of the seat assembly (1), a sliding mechanism integrated with a bottom of each seat assembly (1) for sliding the seat assembly on the pair of rails (6), wherein the pair of rails (6) having a friction lining (11) installed along the entire length of the rails (6) which serves as counter surface to the brake mechanism.

In one exemplary aspect, the sliding mechanism comprises of a pair of wheels (7) mounted on a shaft (8) driven by a single motor (9) through a spur gear train (10). These wheels (7) run on the rails (6) installed beneath the seat assembly (1). The motor (9) comprises of servo motor, stepper motor and linear motor, etc. In a preferred aspect, the motor (9) could be of either servo motor or stepper motor and the logic flow of the same is illustrated in Figures 10 and 11, respectively, where 'P' is the number of passengers on board, 'Ref is the reference position of the motor (9) and 'n' is the number of steps to be moved by the motor (9).

As shown in Figure 10, the control system may be an Electronic Control Unit (ECU). The ECU calculates the number of steps 'n' to be moved by the motor (9) based on the input 'P' received from the driver/user, wherein the input 'P' is number of passengers on board and the motor (9) is stepper motor. The ECU sends the value of 'n' to the motor (9) which in turn runs the pair of wheels (7) to slide the seat assembly in a longitudinal direction.

As shown in Figure 11, the ECU calculates the number of steps 'n' to be moved by the motor (9) based on the input 'P' received from the driver/user and the output of an input combiner, wherein the input 'P' is number of passengers on board and the motor (9) is servo motor. Then the ECU sends the value of 'n' to the motor (9) which in turn runs the pair of wheels (7) to slide the seat assembly in a longitudinal direction. The ECU also sends a feedback signal

from the wheels (7) to the input combiner, wherein the combiner combines the feedback signal and the reference position 'Ref of the motor (9) and sends the output signal to the ECU. This process is continued till the seat assembly (1) is moved by 'n' steps.

In one exemplary aspect, the motor (9) is activated on receiving a signal from the control system which in turn runs the wheels (7) mounted on the seat assembly (1) to slide the seat assembly (1) forward or backward in a longitudinal direction on the pair of rails (6). In another aspect, direction of sliding the seat assembly (1) can be reversed by changing the polarity of the motor (9).

In one aspect, to stop the movement of the seat assembly (1), a brake mechanism integrated in the seat assembly (1) for holding the seat assembly (I) rigidly in an intended location. In another aspect, the brake mechanism integrated with the pair of legs (5).

In one exemplary aspect, the brake mechanism may be selected from any one of pneumatic system, clutch assembly and etc.

In a preferred aspect, the brake mechanism comprises of a movable friction lining (12) mounted on a plate (13) and is held in place against the friction lining (11) of the pair of rails (6) by a spring (14). In one exemplary aspect, the plate (13) may be iron plate. In another exemplary aspect, the plate may be selected from any other suitable material which responds to magnetic force to fulfills the requirements.

The brake mechanism further comprises of a solenoid (15) installed behind the plate (13) co-axial to the spring (14).

In one aspect, the control system is installed on the vehicle. In one exemplary aspect, the control system installed in front of a driver/user of the vehicle. The control system communicatively coupled with the sliding mechanism and the brake mechanism for managing posture and position of the seat assembly (1) inside the passenger saloon.

In one exemplary aspect, the control system comprises of a user friendly console provided for the driver on the dashboard. The view of the same is illustrated in Figure 9. In another exemplary aspect, the input unit of the control system (i.e. user friendly console) can be arranged outside the vehicle and in this case is wirelessly coupled to the control system so that said input unit is able to communicate.

The user/driver may input the number of passenger boarding the vehicle 'P' based on which the control system manages the seat assemblies (1) inside the passenger saloon accordingly.

In one exemplary aspect, the seating system is automated and completed controlled by CAN architecture through a driver input.

In another aspect, the control system sends control signals, based on the input 'P' received from the driver/user, to sliding mechanism and the brake mechanism for folding the lumbar (2), cushion (3) and calf support (4) of the unoccupied seat assemblies, and aligning vertically with each other. In one exemplary aspect, the sliding mechanism and the brake mechanism

use any one of the technologies known in the art for folding the lumbar (2), cushion (3) and calf support (4) of the unoccupied seat assemblies (1) and aligning vertically with each other. Since the seat assembly (1) gets compressed a void is created ahead of it and also after it. The same is performed on all the unoccupied seat assemblies (1).

Upon aligning the seat assemblies (1) vertically, the solenoid (15) pulls back the plate opposing the force of the spring (15) enabling the disengagement of the movable friction lining (12) of the brake mechanism from the friction lining (11) of the pair of rails (6) when the solenoid (15) is turned on based on a signal received from the control system. Then the control system moves the aligned seat assemblies (1) to a rear of the vehicle for gaining a significant void inside the passenger saloon. In one aspect, when these seat assemblies (1) are pushed to the rear of the bus the smaller voids get accumulated to form a void of significant size. Subsequently, the spring (14) recoils to engage the movable friction lining (12) of the brake mechanism with the friction lining (11) of the pair of rails (6) to hold the seat assembly in the intended position when the solenoid (15) is turned off based on a signal received from the control system.

The crux of the invention is to utilize this space and distribute amongst the occupied seat assemblies thereby enhancing the seat spacing of the occupied seat assemblies and eventually the comfort for the seated passengers. The same is shown in Figure 3 when compared to the original seating position as shown in Figure 2.

Upon moving and holding the aligned seat assemblies (1) in the rear of the vehicle, the control system sends control signals to sliding mechanism and the brake mechanism for aligning the lumbar (2), cushion (3) and calf support (4) of the occupied seat assemblies (1) in the normal seating posture, and reclining the seat assemblies (1) at a predefined angle selected from 1 degree to 72 degrees with the plane of the lumbar (2) utilizing the gained void thereby increasing the leg space of the passenger. In one exemplary aspect, the sliding mechanism and the brake mechanism use any one of the technologies known in the art for aligning the lumbar (2), cushion (3) and calf support (4) of the occupied seat assemblies (4) in the normal seating posture, and reclining the seat assemblies (1) at a predefined angle.

On further availability of space ahead or behind, the control system sends control signals to sliding mechanism and the brake mechanism for reclining the seat assemblies (1) at 78 degrees with the plane of the lumbar (2) to form a berth as shown in Figures 7 and 8 on which the passenger can rest at supine position.

Upon forming the berth, the spring (14) recoils to engage the movable friction lining (12) of the brake mechanism with the friction lining (11) of the pair of rails (6) to hold the seat assembly in the intended position when the solenoid (15) is turned off based on a signal received from the control system.
Based on the type of motor used i.e. stepper or servo type, there are respective techniques which are written to manage the seat assembly movements, the techniques will be codified and will be flashed to the control module (i.e. ECU) of the vehicle. The techniques are illustrated in Figures 12 and 13.

As shown in Figure 12, a method of moving the seat assembly (1) using the stepper motor (9) according to one exemplary embodiment of the invention is explained as follows:

Initially, the driver enters the number of passengers on-board 'P' in the console of the ECU. Upon receiving the input 'P\ the ECU sets the criteria as i=(S-P)/4, N=S/4, and j=l and checks whether i>0, wherein 'S' is the number of seat assemblies in the bus. If 'i' is less than zero, then ECU displays new layout in dashboard. If 'i' is greater than zero, then ECU turns on the jth row solenoids (15) to unlock the seat assembly (1), then turns jth row motors (9) by riji steps and subsequently, turns off solenoids (15) to lock the seat assembly (1), wherein njj is the number of steps to be moved by jth row if number of empty row is 'i'. Further, ECU checks whether 'j' is equal to 'N', if yes, ECU displays new layout in dashboard. If 'j' is not equal to 'N', then ECU checks next 'j', subsequently the ECU turns j row motors (9) by nji steps and subsequently, turns off solenoids (15) to lock the seat assembly (1). Finally, the ECU checks whether 'j' is equal to 'N' and the ECU continues the above said method till the 'j' is equal to 'N' and finally, the ECU displays new layout in dashboard.

As shown in Figure 13, a method of moving the seat assembly (1) using the servo motor (9) according to one exemplary embodiment of the invention is explained as follows:

Initially, the driver enters the number of passengers on-board 'P' in the console of the ECU. Upon receiving the input 'P', the ECU sets the criteria as i=(S-P)/4, N=S/4, and j=l and checks whether i>0. If T is less than zero, then ECU displays new layout in dashboard, wherein 'S' is the number of seat assemblies in the bus. If 'i' is greater than zero, then ECU turns on the jth row solenoids (15) to unlock the seat assembly (1), then turns jth row motors (9) by nji steps, wherein n^ is the number of steps to be moved by jth row if number of empty row is 'i'. Further, ECU sends output signal from the motor (9) to the encoder. The ECU checks whether the steps moved nact is equal to njj. If nact is not equal to nji; then ECU again turns jth row motors (9) by nji steps. The ECU continues the above said method till nact is equal to nji. If nact is equal to % ECU turns off solenoids (15) to lock the seat assembly (1). Further, ECU checks whether 'j' is equal 'N', if yes, ECU displays new layout in dashboard. If 'j' is not equal to 'N', then ECU continues the above said method till the 'j' is equal to 'N' and finally, the ECU displays new layout in dashboard.

The preceding description has been presented with reference to various embodiments of the invention. Persons skilled in the art and technology to which this invention pertains will appreciate that alterations and changes in the described structures and methods of operation can be practiced without meaningfully departing from the principle, spirit and scope of this invention.

ADVANTAGES OF THE INVENTION:
Thus some of the advantages of the system proposed in the invention are:

1) Designing a seat assembly which is collapsible in nature and the seat assembly enables it to be compressed when unoccupied and thereby creating voids in the vicinity; and

2) Providing an adjustable seating system which extracts the space from unoccupied seat assemblies and utilizes it to enhance comfort for the passengers in the occupied seat assemblies.

We claim:

1. An adjustable seating system for a vehicle, said system comprising:
at least one seat assembly (1) comprising lumbar (2) and cushion (3) which are collapsible in nature; the at least one seat assembly (1) is mounted on a pair of rails (6) running beneath the seat assembly (1) longitudinally along the entire length of a passenger saloon of the vehicle; a sliding mechanism integrated with a bottom of each seat assembly (1) for sliding the seat assembly (1) on the pair of rails (6); a brake mechanism integrated in the at least one seat assembly (1) for holding the seat assembly (1) in an intended location; and
a control system installed on the vehicle, wherein the control system communicatively coupled with the sliding mechanism and the brake mechanism for managing posture and position of the at least one seat assembly (1) inside the passenger saloon.
2. The adjustable seating system as claimed in claim 1, wherein the seat assembly (1) additionally comprises calf support (4).
3. The adjustable seating system as claimed in claim 1, wherein the seat assembly (1) is supported with a pair of legs (5).
4. The adjustable seating system as claimed in claim 3, wherein the brake mechanism integrated with the pair of legs (5).
5. The adjustable seating system as claimed in claim 1, wherein the seat assembly (1) comprises single seater or double seater.
6. The adjustable seating system as claimed in claim 1, wherein the pair of rails (6) having a friction lining (11) installed along the entire length of the rails (6) which serves as counter surface to the brake mechanism.
7. The adjustable seating system as claimed in claim 1, wherein the sliding mechanism comprises a pair of wheels (7) mounted on a shaft (8) driven by a single motor (9) through a spur gear train (10).

8. The adjustable seating system as claimed in claim 7, wherein the motor (9) comprises servo motor, stepper motor or linear motor.
9. The adjustable seating system as claimed in claim 7, wherein the motor (9) is activated on receiving a signal from the control system which in turn runs the wheels (7) mounted on the seat assembly (1) to slide the seat assembly (1) forward or backward in a longitudinal direction on the pair of rails (6).
10. The adjustable seating system as claimed in claim 9, wherein the direction of sliding the seat assembly (1) can be reversed by changing the polarity of the motor (9).
11. The adjustable seating system as claimed in claim 1, wherein the brake mechanism comprises
i) a movable friction lining (12) mounted on a plate (13) and is held in place
against the friction lining (11) of the pair of rails (6) by a spring (14); and
ii) a solenoid (15) installed behind the plate (13) co-axial to the spring (14).
12. The adjustable seating system as claimed in claim 1, wherein the brake mechanism comprises pneumatic system or clutch assembly.
13. The adjustable seating system as claimed in claim 11, wherein the solenoid (15) pulls back the plate (13) opposing the force of the spring (14) enabling the disengagement of the movable friction lining (12) of the brake mechanism from the friction lining (11) of the pair of rails (6) when the solenoid (15) is turned on based on a signal received from the control system.
14. The adjustable seating system as claimed in claim 11, wherein the spring (14) recoils to engage the movable friction lining (12) of the brake mechanism with the friction lining (11) of the pair of rails (6) to hold the seat assembly (1) in the intended position when the solenoid (15) is turned off based on a signal received from the control system.
15. The adjustable seating system as claimed in claim 1, wherein the control system sends control signals to sliding mechanism and the brake mechanism for folding the lumbar (2),

cushion (3) and calf support (4) of the unoccupied seat assembly (1), and aligning vertically with each other.
16. The adjustable seating system as claimed in claim 15, wherein the control system moves the aligned seat assembly (1) to a rear of the vehicle for gaining a significant void inside the passenger saloon.
17. The adjustable seating system as claimed in claim 16, wherein the control system sends control signals to sliding mechanism and the brake mechanism for aligning the lumbar (2), cushion (3) and calf support (4) of the occupied seat assembly (1) in the normal seating posture, and reclining the seat assembly (1) at a predefined angle selected from 1 degree to 78 degrees with the plane of the lumbar (2) utilizing the gained void thereby increasing the leg space of the passenger.
18. The adjustable seating system as claimed in claim 17, wherein the control system sends control signals to sliding mechanism and the brake mechanism for reclining the seat assembly (1) at 78 degrees with the plane of the lumbar (2) to form a berth utilizing the gained void on which the passenger can rest at supine position.