Claims:We claim:
1. A system (100) for auto-returning a vehicle steering wheel (W) to its initial position, said system (100) comprising:
a first armature (102) adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W);
a second armature (104) adapted to be located in the hollow cross beam (WC) and is opposite to said first armature (104);
a controller unit (106);
a steering wheel angle sensor (107) adapted to monitor and communicate steering wheel angle to said controller unit (106);
a vehicle speed sensor (108) adapted to monitor and communicate vehicle speed to said controller unit (106); and
a plurality of steering wheel pressure sensors (110) adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to said controller unit (106),
wherein
said controller unit (106) is adapted to energize said first armature (102) to act as an electromagnet which in turn attracts said second armature (104) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (107), said vehicle speed sensor (108) and steering wheel pressure sensors (110) to said controller unit (106), and when the vehicle steering wheel (W) is rotated in a first direction.

2. The system (100) as claimed in claim 1, wherein said controller unit (106) is adapted to energize said second armature (104) to act as an electromagnet which in turn attracts said first armature (102) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (107), said vehicle speed sensor (108) and steering wheel pressure sensors (110) to said controller unit (106), and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction.
3. The system (100) as claimed in claim 1, wherein said system (100) includes,
a battery (109);
a first coil of wires (105F) wound over said first armature (102) and is electrically connected to said battery (109); and
a second coil of wires (105S) wound over said second armature (104) and is electrically connected to said battery (109),
wherein
said controller (106) is adapted to operate said battery (109) to energize one of said first armature (102) and said second armature (104) through one of said first coil of wires (105F) and said second coil of wires (105S) respectively when the steering wheel angle as sensed by said steering wheel angle sensor (107) is more than a predefined angle, the vehicle speed as sensed by said vehicle speed sensor (108) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by said steering wheel pressure sensors (110) and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively; and
the predefined steering wheel angle is at least 360 degree or 180 degree, and the predefined vehicle speed is vehicle parking speed.

4. The system (100) as claimed in claim 1, wherein said system (100) includes,
a first resilient member (103F), wherein one end of said first resilient member (103F) is connected to the first armature (102) and another end of the first resilient member (103F) is connected to the vehicle steering wheel (W); and
a second resilient member (103S), wherein one end of said second resilient member (103S) is connected to said second armature (104) and another end of said second resilient member (103S) is connected to the vehicle steering wheel (W),
wherein
said controller unit (106) is adapted to de-energize one of said first armature (102) and said second armature (104), and corresponding said resilient member (103F or 103S) is adapted to move respective said armature (102 or 104) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position;
said first resilient member (103F is at least a spring; and
said second resilient member (103S) is at least a spring.

5. A system (200) for auto-returning a vehicle steering wheel (W) to its initial position, said system (200) comprising:
a first sliding mass (202) adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W);
a second sliding mass (204) adapted to be located in the hollow cross beam (WC) and is opposite to said first sliding mass (204);
a linear actuator (206) adapted to be coupled to said first sliding mass (202) and said second sliding mass (204);
a controller unit (208) in communication with said linear actuator (206);
a steering wheel angle sensor (210) adapted to monitor and communicate steering wheel angle to said controller unit (208);
a vehicle speed sensor (212) adapted to monitor and communicate vehicle speed to said controller unit (208); and
a plurality of steering wheel pressure sensors (214) adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to said controller unit (208),
wherein
said controller unit (208) is adapted to operate said linear actuator (206) which in turn moves said second sliding mass (204) and first sliding mass (202) in a direction towards a first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (210), said vehicle speed sensor (212) and said steering wheel pressure sensors (214) to said controller unit (208), and when the vehicle steering wheel (W) is rotated in a first direction.

6. The system (200) as claimed in claim 5, wherein said controller unit (208) is adapted to operate said linear actuator (206) which in turn moves said first sliding mass (202) and said second sliding mass (204) in a direction towards a second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (210), said vehicle speed sensor (212) and said steering wheel pressure sensors (214) to said controller unit (208), and when the vehicle steering wheel (W) is steered in a second direction which is opposite the first direction.

7. The system (200) as claimed in claim 5, wherein said linear actuator (206) includes,
an electric motor (206M) in communication with said controller unit (208);
a rack gear (206R), one end of said rack gear (206R) is connected to said first sliding mass (202) and another end of said rack gear (206R) is connected to said second sliding mass (204); and
a pinion gear (206P) mounted on an output shaft (206MS) of said electric motor (206M) and is connected to said rack gear (206R),
wherein
said controller unit (208) is adapted to operate said electric motor (206M) which in turn moves said second sliding mass (204) and first sliding mass (202) in the direction towards the first end (WC1) of the hollow cross beam (WC) or moves said first sliding mass (202) and said second sliding mass (204) in the direction towards the second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by said steering wheel angle sensor (210) is more than a predefined angle, the vehicle speed as sensed by said vehicle speed sensor (212) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by said steering wheel pressure sensors (214) and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively; and
the predefined steering wheel angle is at least 360 degree or 180 degree, and the predefined vehicle speed is vehicle parking speed; and
said controller unit (208) is adapted to operate said electric motor (206M) to move said first sliding mass (202) and said second sliding mass (204) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.

8. A system (300) for auto-returning a vehicle steering wheel (W) to its initial position, said system (200) comprising:
a sliding mass (302) adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W);
a first resilient member (304), wherein one end of said first resilient member (304) is connected to said sliding mass (302) and another end of said first resilient member (304) is connected to a first end (WC1) of said hollow cross beam (WC);
a second resilient member (306), wherein one end of said first resilient member (306) is connected to said sliding mass (302) and another end of said second resilient member (306) is connected to a second end (WC2) of said hollow cross beam (WC);
a fluid reservoir (307) adapted to store fluid;
a control valve (308) in fluid communication with said hollow cross beam (WC) of the vehicle steering wheel (W);
a pump (309) in fluid communication with said fluid reservoir (307) and said control valve (308);
a controller unit (310) in communication with said control valve (308);
a steering wheel angle sensor (312) adapted to monitor and communicate steering wheel angle to said controller unit (310);
a vehicle speed sensor (314) adapted to monitor and communicate vehicle speed to said controller unit (310); and
a plurality of steering wheel pressure sensors (316) adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to said controller unit (310),
wherein
said controller unit (310) is adapted to operate said pump (309) and said control valve (308) and accordingly said the pump (309) is adapted to circulate fluid from said fluid reservoir (307) to said control valve (308) which in turn regulates fluid flow to the second end (WC2) of the hollow cross beam (WC) therein to move said sliding mass (302) in a direction towards the first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (312), said vehicle speed sensor (314) and said steering wheel pressure sensors (316) to said controller unit (310), and when the vehicle steering wheel (W) is rotated in a first direction.

9. The system (300) as claimed in claim 8, wherein said controller unit (310) is adapted to operate said pump (309) and said control valve (308) and accordingly said the pump (309) is adapted to circulate fluid from said fluid reservoir (307) to said control valve (308) which in turn regulates fluid flow to the first end (WC1) of the hollow cross beam (WC) therein to move said sliding mass (302) in a direction towards the second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position based on inputs sent by said steering wheel angle sensor (312), said vehicle speed sensor (314) and said steering wheel pressure sensors (316) to said controller unit (310), and when the vehicle steering wheel (W) is steered in a second direction which is opposite to the first direction.

10. The system (300) as claimed in claim 8, wherein said controller unit (310) is adapted to operate said pump (309) and said control valve (310) to move said sliding mass (302) in one of the direction towards the second end (WC2) and the first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by said steering wheel angle sensor (312) is more than a predefined angle, the vehicle speed as sensed by said vehicle speed sensor (314) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by said steering wheel pressure sensors (316) and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively;
said controller unit (310) is adapted to operate said control valve (308) which is turn allows fluid flow from the hollow cross beam (WC) to said fluid reservoir (306), and said resilient members (304, 306) moves said sliding mass (302) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position;
said control valve (308) is a two way valve;
said first resilient member (304) is at least a spring;
said second resilient member (306) is at least a spring; and
the predefined steering wheel angle is at least 360 degree, the predefined vehicle speed is vehicle parking speed.

11. A method (400) for auto-returning a vehicle steering wheel (W) to its initial position, said method (400) comprising:
monitoring and communicating, by a steering wheel angle sensor (107), steering wheel angle to a controller unit (106);
monitoring and communicating, by a vehicle speed sensor (108), vehicle speed to the controller unit (106);
monitoring and communicating, by a plurality of steering wheel pressure sensors (110), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (106); and
energizing, by the controller unit (106), a first armature (102) through a battery (109) and a first coil of wires (105F) based on inputs sent by the steering wheel angle sensor (107), the vehicle speed sensor (108) and steering wheel pressure sensors (110) to the controller unit (106), and when the vehicle steering wheel (W) is rotated in a first direction; and
acting, by the first armature (102) as an electromagnet which in turn attracts the second armature (104) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position in response to energizing the first armature (102).

12. The method (400) as claimed in claim 11, wherein said method (400) includes,
energizing, by the controller unit (106), the second armature (104) through the battery (109) and a second coil of wires (105S) based on inputs sent by the steering wheel angle sensor (107), the vehicle speed sensor (108) and steering wheel pressure sensors (110) to the controller unit (106), and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction;
acting, by the second armature (104) as an electromagnet which in turn attracts the first armature (102) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position in response to energizing the second armature (104); and
de-energizing, by the controller unit (106), one of the first armature (102) and the second armature (104), and moving, by corresponding resilient member (103F, 103S), the respective armature (102 or 104) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position,
wherein
the controller (106) energizes one of the first armature (102) and the second armature (104) when the steering wheel angle as sensed by the steering wheel angle sensor (107) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (108) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensors (110) and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively; and
the predefined steering wheel angle is at least 360 degree or 180 degree, and the predefined vehicle speed is vehicle parking speed.

13. A method (500) for auto-returning a vehicle steering wheel (W) to its initial position, said method (500) comprising:
monitoring and communicating, by a steering wheel angle sensor (210), steering wheel angle to a controller unit (208);
monitoring and communicating, by a vehicle speed sensor (212), vehicle speed to the controller unit (208);
monitoring and communicating, by a plurality of steering wheel pressure sensors (214), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (208); and
operating a linear actuator (206) by the controller unit (208) based on inputs sent by the steering wheel angle sensor (210), the vehicle speed sensor (212) and the steering wheel pressure sensors (214) to the controller unit (208) and when the vehicle steering wheel (W) is rotated in a first direction; and
moving, by the linear actuator (206), a second sliding mass (204) and a first sliding mass (202) in a direction towards a first end (WC1) of a hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position in response to operating the linear actuator (206) by the controller unit (208).

14. The method (400) as claimed in claim 13, wherein said method (400) includes,
operating the linear actuator (206) by the controller unit (208) based on inputs sent by the steering wheel angle sensor (210), the vehicle speed sensor (212) and the steering wheel pressure sensors (214) to the controller unit (208) and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction; and
moving, by the linear actuator (206), a first sliding mass (202) and a second sliding mass (204) in a direction towards a second end (WC2) of the hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position in response to operating the linear actuator (206) by the controller unit (208); and
operating the linear actuator (206) by the controller unit (208), and moving by, the linear actuator (206), the first sliding mass (202) and the second sliding mass (204) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position,
wherein
the controller (208) operates the linear actuator (206) to move the sliding mass (202, 204) in one of the direction towards the first end (WC1) or the second end (WC2) of the hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (210) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (212) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensors (214), and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively; and
the predefined steering wheel angle is at least 360 degree or 180 degree, and the predefined vehicle speed is vehicle parking speed.

15. A method (600) for auto-returning a vehicle steering wheel (W) to its initial position, said method (600) comprising:
monitoring and communicating, by a steering wheel angle sensor (312), steering wheel angle to a controller unit (310);
monitoring and communicating, by a vehicle speed sensor (314), vehicle speed to the controller unit (310);
monitoring and communicating, by a plurality of steering wheel pressure sensors (316), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (310);
operating a pump (309) and a control valve (308) by the controller unit (310) based on inputs sent by the steering wheel angle sensor (312), the vehicle speed sensor (314) and the steering wheel pressure sensors (316) to the controller unit (310), and when the vehicle steering wheel (W) is rotated in a first direction;
circulating, by the pump (309) fluid from the fluid reservoir (307) to the control valve (308);
controlling, by the control valve (308), fluid flow to a second end (WC2) of a hollow cross beam (WC) of the vehicle steering wheel (WC); and
moving, by the fluid received in the hollow cross beam (WC), the sliding mass (302) in a direction towards a first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position.

16. The method (600) as claimed in claim 15, wherein said method (600) includes,
operating the pump (309) and the control valve (308) by the controller unit (310) based on inputs sent by the steering wheel angle sensor (312), the vehicle speed sensor (314) and the steering wheel pressure sensors (316) to the controller unit (310), and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction;
circulating, by the pump (309) fluid from the fluid reservoir (307) to the control valve (308);
controlling, by the control valve (308), fluid flow to the first end (WC1) of the hollow cross beam (WC) of the vehicle steering wheel (WC); and
moving, by the fluid received in the hollow cross beam (WC), the sliding mass (302) in a direction towards the second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position.

17. The method (600) as claimed in claim 15, wherein said method (600) includes,
operating the control valve (308) by the controller unit (310), and allowing, by control valve (308), fluid flow from the hollow cross beam (WC) to the fluid reservoir (306) and moving, by the resilient members (304, 306), the sliding mass (302) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position,
wherein
the controller (208) operates the pump (309) and the control valve (310) to move the sliding mass (302) in one of the direction towards the first end (WC1) or the second end (WC2) of the hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (312) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (314) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensors (316), and when the vehicle steering wheel (W) is rotated in the first direction or the second direction respectively;
the predefined steering wheel angle is at least 360 degree or 180 degree, and the predefined vehicle speed is vehicle parking speed;
the control valve (308) is a two way valve; and
the resilient member (304, 306) is at least a spring.
, Description:TECHNICAL FIELD
[001] The embodiments herein generally relate to steering systems in vehicles and more particularly, to systems and methods for auto-returning a vehicle steering wheel to its initial position when the vehicle is moving at low speeds during vehicle parking or road turns.

BACKGROUND
[002] Generally, a steering system controls directional change in the movement of a vehicle and maintain in a position as per the decision of the driver driving the vehicle. The steering system is used to convert the rotary movement of a steering wheel into angular turn of the wheels of the vehicle. During parking of the vehicle at low speeds, the driver has to steer the steering wheel so as to correctly park the vehicle. This may involve continuous operation of the steering wheel and may cause fatigue to the driver as the steering wheel may not return to its initial position. For example, at lower speeds (less than 15kmph), some vehicle steering wheel may not return after complete rotation of steering to any one side (left or right turn). Steering mechanism may cause steering jam and does not allow the vehicle to regain the desired intended path by driver after freeing the steering wheels. Most conventional hydraulic/electric/manual steering system vehicle has steering return ability problem particularly when the vehicle is moving at low speeds during vehicle parking or road turns.
[003] Therefore, providing automatic steering return ability system in the vehicle moving at low speeds during parking or road turns is difficult and is one of the challenges faced by original equipment manufacturers (OEM’s).

[004] Therefore, there exists a need for systems and methods for auto-returning the vehicle steering wheel to its initial position, which obviates the aforementioned drawbacks.

OBJECTS

[005] The principal object of embodiments herein is to provide systems for auto-returning a vehicle steering wheel to its initial position when the vehicle is moving at low speeds during vehicle parking or road turns.
[006] Another object of embodiments herein is to provide methods for auto-returning the steering wheel in the vehicle to its initial position when the vehicle is moving at low speeds during vehicle parking or road turns.
[007] Another object of embodiments herein is to provide systems for auto-returning the steering wheel in the vehicle to its initial position, which is reliable, easy to manufacture and is inexpensive.
[008] Another object of embodiments herein is to provide electronic steering wheel auto-returning systems in the vehicle.
[009] Another object of embodiments herein is to provide an electro-hydraulic steering wheel auto-returning system in the vehicle.
[0010] Another object of embodiments herein is to provide steering wheel auto-returning systems in the vehicle, which reduces fatigue to the operator.
[0011] Another object of embodiments herein is to provide steering wheel auto-returning systems in the vehicle, which enables the vehicle to move in an intended driving path/ straight line after turning.
[0012] These and other objects of embodiments herein will be better appreciated and understood when considered in conjunction with following description and accompanying drawings. It should be understood, however, that the following descriptions, while indicating embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS
[0013] The embodiments are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0014] Fig. 1 depicts a schematic view of a system for auto-returning a vehicle steering wheel to its initial position, according to first embodiments as disclosed herein;
[0015] Fig. 2 depicts a schematic view of a system for auto-returning a vehicle steering wheel to its initial position, according to second embodiments as disclosed herein;
[0016] Fig. 3 depicts a schematic view of a system for auto-returning a vehicle steering wheel to its initial position, according to third embodiments as disclosed herein;
[0017] Fig. 4 depicts a flowchart indicating a method for auto-returning the vehicle steering wheel to its initial position, according to first embodiments as disclosed herein;
[0018] Fig. 5 depicts a flowchart indicating a method for auto-returning the vehicle steering wheel to its initial position, according to second embodiments as disclosed herein; and
[0019] Fig. 6 depicts a flowchart indicating a method for auto-returning the vehicle steering wheel to its initial position, according to third embodiments as disclosed herein.
DETAILED DESCRIPTION
[0020] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0021] The embodiments herein achieve systems and methods for auto-returning a vehicle steering wheel to its initial position, when the vehicle is moving at low speeds during vehicle parking or road turns. The embodiments herein achieve the steering wheel auto-returning systems which enable the vehicle to move in an intended driving path/ straight line after turning. Referring now to the drawings Figs 1 through 6, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0022] Fig. 1 depicts a schematic view of a system (100) for auto-returning a vehicle steering wheel (W) to its initial position, according to first embodiments as disclosed herein. In an embodiment, the system (100) includes a first armature (102), a second armature (104), a first resilient member (103F), a second resilient member (103S), a first coil of wires (105F), a second coil of wires (105S), a controller unit (106), a steering wheel angle sensor (107), a vehicle speed sensor (108), a battery (109) and a plurality of steering wheel pressure sensors (110). For the purpose of this description and ease of understanding, the system (100) is explained herein with below reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of the invention to use/practice the system (100) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the system (100) as can be deduced from the description and corresponding drawings.
[0023] The first armature (102) is adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W). The first armature (102) is connected to the battery (109) through the first coil of wires (105F). The second armature (104) is adapted to be located in the hollow cross beam (WC) and is opposite to the first armature (104). The second armature (104) is connected to the battery (109) through the second coil of wires (105S).
[0024] One end of the first resilient member (103F) is connected to the first armature (102) and another end of the first resilient member (103F) is connected to one of the vehicle steering wheel (W). One end of the second resilient member (103S) is connected to the second armature (104) and another end of the second resilient member (103S) is connected to one of the vehicle steering wheel (W). For the purpose of this description and ease of understanding, each of the first and second resilient members (103F, 103S) is considered to be a spring (low stiffness spring). It is also within the scope of the invention to use elastic means or other means in place of spring without otherwise deterring the intended function of the first and second resilient members (103F, 103S) as can be deduced from the description and corresponding drawings. The first coil of wires (105F) is wound over the first armature (102) and is electrically connected to the battery (109). The second coil of wires (105S) is wound over the second armature (104) and is electrically connected to the battery (109).
[0025] The controller unit (106) is in communication with the battery (109). For example, the controller unit (106) is in at least one of electronic and electrical communication with the battery (109). In one embodiment, the controller unit (106) is located in the vehicle steering wheel (W). It is also within the scope of the invention to install the controller unit (106) in dashboard or any other location of the vehicle. In one embodiment, the controller unit (106) is a dedicated electronic controller unit. In another embodiment, the controller unit (106) is integrated with the vehicle electronic controller unit. The controller (106) is adapted to operate the battery (109) to energize one of the first armature (102) and the second armature (104) through one of the first coil of wires (105F) and the second coil of wires (105S) respectively based on the inputs received from the steering wheel angle sensor (107), vehicle speed sensor (108) and the steering wheel pressure sensor (110).
[0026] The steering wheel angle sensor (107) is adapted to monitor and communicate measured steering wheel angle to the controller unit (106). In one embodiment, the steering wheel angle sensor (107) is located in the vehicle steering wheel (W). In another embodiment, the steering wheel angle sensor (107) is located in or on a steering shaft or any other steering linkages.
[0027] The vehicle speed sensor (108) is adapted to monitor and communicate vehicle speed to the controller unit (106). In another embodiment, engine speed sensor can be used in place of the vehicle speed sensor (108) for determining the speed parameter.
[0028] The steering wheel pressure sensors (110) are adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (106). The steering wheel pressure sensors (110) are located in the vehicle steering wheel (W). For example, the steering wheel pressure sensors (110) are adapted to sense and communicate physical engagement of the user with the vehicle steering wheel (W), to the controller unit (106).
[0029] During vehicle parking for turning vehicle wheels towards left side or when the vehicle is moving along a left turn, the steering wheel (W) is rotated in the first direction. Subsequently, the controller unit (106) is adapted to energize the first armature (102) through the battery (109) and the first coil of wires (105F) thereby enabling the first armature (102) to act as an electromagnet which in turn attracts the second armature (104) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (107) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (108) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (110) when the vehicle steering wheel (W) is rotated in the first direction. For example, the first direction in which the vehicle steering wheel (W) is rotated is considered to be left turn.
[0030] During vehicle parking for turning vehicle wheels towards right side or when the vehicle is moving along a right turn, the steering wheel (W) is rotated in the second direction. Subsequently, the controller unit (106) is adapted to energize the second armature (104) through the battery (109) and the second coil of wires (105S) thereby enabling the second armature (104) to act as an electromagnet which in turn attracts the first armature (102) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (107) is more than the predefined angle, the vehicle speed as sensed by the vehicle speed sensor (108) is in the predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (110) when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction. For example, the second direction in which the vehicle steering wheel (W) is rotated is considered to be right turn.
[0031] The predefined steering wheel angle is at least 360 degree and the predefined vehicle speed is vehicle parking speed. For example the vehicle parking speed is less than or equal to 15 kilometer per hour (kmph). In another example, the vehicle parking speed can vary between 3 kmph to 20 kmph. In another embodiment, the predefined steering wheel angle is at least 180 degree in case of normal driving.
[0032] The controller unit (106) is adapted to de-energize one of the first armature (102) and the second armature (104), and corresponding resilient member ((103F, 103S) (spring)) is adapted to move the respective armature (102 or 104) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0033] Fig. 2 depicts a schematic view of a system (200) for auto-returning a vehicle steering wheel (W) to its initial position, according to second embodiments as disclosed herein. In an embodiment, the system (200) includes a first sliding mass (202), a second sliding mass (204), a linear actuator (206), a controller unit (208), a steering wheel angle sensor (210), a vehicle speed sensor (212) and a plurality of steering wheel pressure sensors (214). For the purpose of this description and ease of understanding, the system (200) is explained herein with below reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of the invention to use/practice the system (200) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the system (200) as can be deduced from the description and corresponding drawings.
[0034] The first sliding mass (202) is adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W). The second sliding mass (204) is adapted to be located in the hollow cross beam (WC) and is opposite to the first sliding mass (204). The first slider (202) and the second sliding mass (204) are slidably connected to the hollow cross beam (WC).
[0035] The linear actuator (206) is adapted to be coupled to the first and second sliding mass (202, 204). In an embodiment, the linear actuator (206) includes an electric motor (206M), a rack gear (206R) and a pinion gear (206P). The linear actuator (206) is located in the vehicle steering wheel (W). The electric motor (206M) is in communication with the controller unit (208). One end of the rack gear (206R) is connected to the first sliding mass (202) and another end of the rack gear (206R) is connected to the second sliding mass (204). The pinion gear (206P) is mounted on an output shaft (206MS) of the electric motor (206M) and is connected to the rack gear (206R). The controller unit (208) is adapted to operate the electric motor (206M) to auto-return the vehicle steering wheel (S) to its initial position based on the inputs received from the steering wheel angle sensor (210), the vehicle speed sensor (212) and the steering wheel pressure sensor (214).
[0036] The controller unit (208) is in communication with the linear actuator (206). In one embodiment, the controller unit (208) is located in the vehicle steering wheel (W). It is also within the scope of the invention to install the controller unit (208) in dashboard or any other location of the vehicle. In one embodiment, the controller unit (208) is a dedicated electronic controller unit. In another embodiment, the controller unit (208) is integrated with the vehicle electronic controller unit.
[0037] The steering wheel angle sensor (210) is adapted to monitor and communicate measured steering wheel angle to the controller unit (208). In one embodiment, the steering wheel angle sensor (210) is located in the vehicle steering wheel (W). In another embodiment, the steering wheel angle sensor (210) is located in or on a steering shaft or any other steering linkages. The vehicle speed sensor (212) is adapted to monitor and communicate vehicle speed to the controller unit (208). In another embodiment, engine speed sensor can be used in place of the vehicle speed sensor (212) for determining the speed parameter The steering wheel pressure sensors (214) are adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (208). The steering wheel pressure sensors (214) are located in the vehicle steering wheel (W). For example, the steering wheel pressure sensors (214) are adapted to sense and communicate physical engagement of the user with the vehicle steering wheel (W), to the controller unit (208).
[0038] During vehicle parking for turning vehicle wheels towards left side or when the vehicle is moving along a left turn, the steering wheel (W) is rotated in the first direction. Subsequently, the controller unit (208) is adapted to operate the electric motor (206M) of the linear actuator (206) which in turn moves the second sliding mass (204) and the first sliding mass (202) in a direction towards a first end ((WC1), (as shown in fig. 2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (210) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (212) is in a predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (214) when the vehicle steering wheel (W) is rotated in a first direction. For example, the first direction in which the vehicle steering wheel (W) is rotated is considered to be left turn.
[0039] During vehicle parking for turning vehicle wheels towards right side or when the vehicle is moving along a right turn, the steering wheel (W) is rotated in the second direction. Subsequently, the controller unit (208) is adapted to operate the electric motor (206M) of the linear actuator (206) which in turn moves the first sliding mass (202) and the second sliding mass (204) in a direction towards a second end ((WC2) (as shown in fig. 2)) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (210) is more than the predefined angle, the vehicle speed as sensed by the vehicle speed sensor (212) is the predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (214) when the vehicle steering wheel (W) is rotated in a second direction which is opposite the first direction. For example, the second direction in which the vehicle steering wheel (W) is rotated is considered to be right turn. The predefined steering wheel angle is at least 360 degree, the predefined vehicle speed is vehicle parking speed. For example the vehicle parking speed is less than or equal to 15 kilometer per hour (kmph). In another example, the vehicle parking speed can vary between 3 kmph to 20 kmph. In another embodiment, the predefined steering wheel angle is at least 180 degree in case of normal driving. The controller unit (208) is adapted to operate the electric motor (206M) to move the first sliding mass (202) and second sliding mass (204) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0040] Fig. 3 depicts a schematic view of a system (300) for auto-returning a vehicle steering wheel (W) to its initial position, according to third embodiments as disclosed herein. In an embodiment, the system (300) includes a sliding mass (302), a first resilient member (304), a second resilient member (306), a fluid reservoir (307), a control valve (308), a pump (309), a controller unit (310), a steering wheel angle sensor (312), a vehicle speed sensor (314) and a plurality of steering wheel pressure sensors (316). For the purpose of this description and ease of understanding, the system (300) is explained herein with below reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of the invention to use/practice the system (300) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the system (300) as can be deduced from the description and corresponding drawings.
[0041] The sliding mass (302) is adapted to be located in a hollow cross beam (WC) of the vehicle steering wheel (W). One end of the first resilient member (304) is connected to the sliding mass (302) and another end of the first resilient member (304) is connected to a first end (WC1) of the hollow cross beam (WC). The first resilient member (304) is at least a spring (low stiffness spring). One end of the second resilient member (306) is connected to the sliding mass (302) and another end of the second resilient member (306) is connected to a second end (WC2) of the hollow cross beam (WC). The second resilient member (306) is at least a spring (low stiffness spring). It is also within the scope of the invention to use elastic means or other means in place of spring without otherwise deterring the intended function of the first and second resilient members (304, 306) as can be deduced from the description and corresponding drawings. The fluid reservoir (307) is adapted to store fluid.
[0042] The control valve (308) is in fluid communication with the pump (309) and the hollow cross beam (WC) of the vehicle steering wheel (W). The control valve (308) is a two way valve. The pump (309) is in fluid communication with the control valve (308) and the fluid reservoir (307). The controller unit (310) is in communication with the control valve (308) and the pump (309). In one embodiment, the controller unit (310) is a dedicated electronic controller unit. In another embodiment, the controller unit (310) is integrated with the vehicle electronic controller unit. The fluid reservoir (307), the control valve (308), the pump (309) and the controller unit (310) are located on the vehicle steering wheel (W). It is also within the scope of the invention to install the fluid reservoir (307), the control valve (308), the pump (309) and the controller unit (310) in/on dashboard or any other location of the vehicle.
[0043] The steering wheel angle sensor (312) is adapted to monitor and communicate measured steering wheel angle to the controller unit (310). In one embodiment, the steering wheel angle sensor (312) is located in the vehicle steering wheel (W). In another embodiment, the steering wheel angle sensor (107) is located in or on a steering shaft or any other steering linkages. The vehicle speed sensor (314) is adapted to monitor and communicate vehicle speed to the controller unit (310). In another embodiment, engine speed sensor can be used in place of the vehicle speed sensor (314) for determining the speed parameter. The steering wheel pressure sensors (316) are located in the vehicle steering wheel (W). The steering wheel pressure sensors (316) are adapted to monitor and communicate presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (310). For example, the steering wheel pressure sensors (316) are adapted to sense and communicate physical engagement of the user with the vehicle steering wheel (W), to the controller unit (310).
[0044] During vehicle parking for turning vehicle wheels towards left side or when the vehicle is moving along a left turn, the steering wheel (W) is rotated in the first direction. Subsequently, the controller unit (310) is adapted to operate the pump (309) and the control valve (308) and accordingly, the pump (309) is adapted to circulate fluid from the fluid reservoir (307) to the control valve (308) which in turn regulates fluid flow from the pump (309) to the second end (WC2) of the hollow cross beam (WC) therein to move the sliding mass (302) in a direction towards the first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (312) is more than a predefined angle, the vehicle speed as sensed by the vehicle speed sensor (314) is the predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (316) when the vehicle steering wheel (W) is steered in a first direction. For example, the first direction in which the vehicle steering wheel (W) is rotated is considered to be left turn.
[0045] During vehicle parking for turning vehicle wheels towards right side or when the vehicle is moving along a right turn, the steering wheel (W) is rotated in the second direction. Subsequently, the controller unit (310) is adapted to operate the pump (309) and the control valve (308) and accordingly, the pump (309) is adapted to circulate fluid from the fluid reservoir (307) to the control valve (308)which in turn regulates fluid flow from the pump (309) to the first end (WC1) of the hollow cross beam (WC) therein to move the sliding mass (302) in a direction towards the second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position when the steering wheel angle as sensed by the steering wheel angle sensor (312) is more than the predefined angle, the vehicle speed as sensed by the vehicle speed sensor (314) is in the predefined speed, and no pressure in the vehicle steering wheel (W) is sensed by the steering wheel pressure sensor (316) when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction. For example, the second direction in which the vehicle steering wheel (W) is rotated is considered to be right turn. The predefined steering wheel angle is at least 360 degree and the predefined vehicle speed is vehicle parking speed. For example the vehicle parking speed is less than or equal to 15 kilometer per hour (kmph). In another example, the vehicle parking speed can vary between 3 kmph to 20 kmph. In another embodiment, the predefined steering wheel angle is at least 180 degree in case of normal driving.
[0046] The controller unit (310) is adapted to operate the control valve (308) which is turn allows fluid flow from the hollow cross beam (WC) to the fluid reservoir (306), and the resilient members (304, 306) moves the sliding mass (302) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0047] Fig. 4 depicts a flowchart indicating a method (400) for auto-returning the vehicle steering wheel (W) to its initial position, according to first embodiments as disclosed herein. For the purpose of this description and ease of understanding, the method (400) is explained herein below with reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of this invention to practice/implement the entire steps of the method (400) in a same manner or in a different manner or with omission of at least one step to the method (400) or with any addition of at least one step to the method (400) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the method (400) as can be deduced from the description and corresponding drawings. At step (402), the method (400) includes, monitoring and communicating, by a steering wheel angle sensor (107), steering wheel angle to a controller unit (106). At step (404), the method (400) includes, monitoring and communicating, by a vehicle speed sensor (108), vehicle speed to the controller unit (106). At step (406), the method (400) includes, monitoring and communicating, by a plurality of steering wheel pressure sensors (110), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (106). At step (408), the method (400) includes, energizing, by the controller unit (106), a first armature (102) through a battery (109) and a first coil of wires (105F) based on inputs sent by the steering wheel angle sensor (107), the vehicle speed sensor (108) and steering wheel pressure sensors (110) to the controller unit (106), and when the vehicle steering wheel (W) is rotated in a first direction. At step (410), the method (400) includes, acting, by the first armature (102) as an electromagnet which in turn attracts the second armature (104) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position in response to energizing the first armature (102).
[0048] At step (412), the method (400) includes, de-energizing the first armature (102) by the controller unit (106), and moving, by a second resilient member (103S), the second armature (104) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position. At step (414), the method (400) includes, energizing, by the controller unit (106), the second armature (104) through the battery (109) and a second coil of wires (105S) based on inputs sent by the steering wheel angle sensor (107), the vehicle speed sensor (108) and steering wheel pressure sensors (110) to the controller unit (106), and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction. At step (416), the method (400) includes, acting, by the second armature (104) as an electromagnet which in turn attracts the first armature (102) thereto, thereby auto-returning the vehicle steering wheel (W) to its initial position in response to energizing the second armature (104). At step (418), the method (400) includes, de-energizing the second armature (104) by the controller unit (106), and moving, by a first resilient member (103F), the first armature (102) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0049] Fig. 5 depicts a flowchart indicating a method (500) for auto-returning the vehicle steering wheel to its initial position, according to second embodiments as disclosed herein. For the purpose of this description and ease of understanding, the method (500) is explained herein below with reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of this invention to practice/implement the entire steps of the method (500) in a same manner or in a different manner or with omission of at least one step to the method (500) or with any addition of at least one step to the method (500) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the method (500) as can be deduced from the description and corresponding drawings. At step (502), the method (500) includes, monitoring and communicating, by a steering wheel angle sensor (210), steering wheel angle to a controller unit (208). At step (504), the method (500) includes, monitoring and communicating, by a vehicle speed sensor (212), vehicle speed to the controller unit (208). At step (506), the method (500) includes, monitoring and communicating, by a plurality of steering wheel pressure sensors (214), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (208). At step (508), the method (500) includes, operating a linear actuator (206) by the controller unit (208) based on inputs sent by the steering wheel angle sensor (210), the vehicle speed sensor (212) and the steering wheel pressure sensors (214) to the controller unit (208) and when the vehicle steering wheel (W) is rotated in a first direction. At step (510), the method (500) includes, moving, by the linear actuator (206), a second sliding mass (204) and a first sliding mass (202) in a direction towards a first end (WC1) of a hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position in response to operating the linear actuator (206) by the controller unit (208).
[0050] Further, at step (512), the method (500) includes, operating the linear actuator (206) by the controller unit (208), and moving by, the linear actuator (206), the first sliding mass (202) and the second sliding mass (204) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0051] Furthermore, at step (514), the method (500) includes, operating the linear actuator (206) by the controller unit (208) based on inputs sent by the steering wheel angle sensor (210), the vehicle speed sensor (212) and the steering wheel pressure sensors (214) to the controller unit (208) and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction. At step (516), the method (500) includes, moving, by the linear actuator (206), a first sliding mass (202) and a second sliding mass (204) in a direction towards a second end (WC2) of the hollow cross beam (WC) of the vehicle steering wheel (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position in response to operating the linear actuator (206) by the controller unit (208). At step (518), the method (500) includes, operating the linear actuator (206) by the controller unit (208), and moving by, the linear actuator (206), the first sliding mass (202) and the second sliding mass (204) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0052] Fig. 6 depicts a flowchart indicating a method (600) for auto-returning the vehicle steering wheel (W) to its initial position, according to third embodiments as disclosed herein. For the purpose of this description and ease of understanding, the method (600) is explained herein below with reference to auto-returning the vehicle steering wheel (W) to its initial position in a passenger vehicle, when the vehicle is moving at low speeds during vehicle parking or road turns. However, it is also within the scope of this invention to practice/implement the entire steps of the method (600) in a same manner or in a different manner or with omission of at least one step to the method (600) or with any addition of at least one step to the method (600) for auto-returning the steering wheel to its initial position in off-road vehicle or commercial vehicles or any other vehicles or any other applications, where auto-retuning of the steering wheel is required, without otherwise deterring the intended function of the method (600) as can be deduced from the description and corresponding drawings. At step (602), the method (600) includes, monitoring and communicating, by a steering wheel angle sensor (312), steering wheel angle to a controller unit (310). At step (604), the method (600) includes, monitoring and communicating, by a vehicle speed sensor (314), vehicle speed to the controller unit (310). At step (606), the method (600) includes, monitoring and communicating, by a plurality of steering wheel pressure sensors (316), presence or absence of pressure in the vehicle steering wheel (W) to the controller unit (310). At step (608), the method (600) includes, operating a pump (309) and a control valve (308) by the controller unit (310) based on inputs sent by the steering wheel angle sensor (312), the vehicle speed sensor (314) and the steering wheel pressure sensors (316) to the controller unit (310), and when the vehicle steering wheel (W) is rotated in a first direction. At step (610), the method (600) includes, circulating, by the pump (309) fluid from the fluid reservoir (307) to the control valve (308). At step (612), the method (600) includes, controlling, by the control valve (308), fluid flow to a second end (WC2) of a hollow cross beam (WC) of the vehicle steering wheel (WC). At step (614), the method (600) includes, moving, by the fluid received in the hollow cross beam (WC), the sliding mass (302) in a direction towards a first end (WC1) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position. At step (616), the method (600) includes, operating the control valve (308) by the controller unit (310), and allowing, by control valve (308), fluid flow from the hollow cross beam (WC) to the fluid reservoir (306) and moving, by the resilient members (304, 306), the sliding mass (302) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position. At step (618), the method (600) includes, operating the pump (309) and the control valve (308) by the controller unit (310) based on inputs sent by the steering wheel angle sensor (312), the vehicle speed sensor (314) and the steering wheel pressure sensors (316) to the controller unit (310), and when the vehicle steering wheel (W) is rotated in a second direction which is opposite to the first direction. At step (620), the method (600) includes, circulating, by the pump (309) fluid from the fluid reservoir (307) to the control valve (308). At step (622), the method (600) includes, controlling, by the control valve (308), fluid flow to the first end (WC1) of the hollow cross beam (WC) of the vehicle steering wheel (WC). At step (624), the method (600) includes, moving, by the fluid received in the hollow cross beam (WC), the sliding mass (302) in a direction towards the second end (WC2) of the hollow cross beam (WC) thereby auto-returning the vehicle steering wheel (W) to its initial position. At step (626), the method (600) includes, operating the control valve (308) by the controller unit (310), and allowing, by control valve (308), fluid flow from the hollow cross beam (WC) to the fluid reservoir (306) and moving, by the resilient members (304, 306), the sliding mass (302) to its initial position, when the vehicle steering wheel (W) is auto returned to its initial position.
[0053] The technical advantages of the steering wheel auto-returning systems are as follows. The steering wheel auto-returning systems are easy to manufacture and is inexpensive. The steering wheel auto-returning systems reduce fatigue to the operator. The steering wheel auto-returning systems enable the vehicle to move in an intended driving path/ straight line after turning.
[0054] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modifications within the spirit and scope of the embodiments as described herein.