The present disclosure is generally related to a vehicle headlamp and more particularly to a system and a method for controlling vehicle headlamp in a low-speed state in order to turn off plurality of vehicle headlamps to reduce the high beam glare falling upon the vehicle or person coming from the opposite direction, thereby reducing the accident chances.
BACKGROUND OF THE INVENTION
[0002] The headlamps are a light source that is affixed at the front part of the vehicle to illuminate the road ahead. There are two types of headlamps i.e. a high beam and a low beam are generally used in vehicles. These headlamps are used for improving visibility not only for drivers but also for all other road users. These headlamps focus on the road in a varying manner.
[0003] Vehicle drivers are facing many issues related to the glared vision such as many accidents occurring due to the high beam light coming from the headlamps of the vehicle coming from the opposite direction which falls directly onto the driver’s eyes. The driver of the vehicle usually switches manually between the vehicle headlamps such as the high beam and the low beam and vice-versa. However, it requires a high concentration of the driver and may lead to a distraction from other safety-related information and sometimes they forget to switch off the high beam when the vehicle is in a stopped state/parking state. When the vehicle is in a parking state then the bright light of a parked vehicle falls directly on the eyes of the opposite direction moving vehicle resulting in momentary vision loss. This temporary blindness often leads to accidents.
[0004] US9275548B2 discloses a method and device for detecting a starting intention of a stopped vehicle. in a method for detecting a starting intention of a stopped vehicle, a starting intention criterion is ascertained upon detection of a stopped vehicle, and decision data are formed based on the starting intention criterion, which decision data include an item of information on whether or not the stopped vehicle will start.
[0005] Conventionally, there exist various methods and systems for helping a user(s) while driving or when a vehicle is in a low-speed state. However, in order to achieve the objective, a control unit is used for detecting an on or off state of plurality of headlamps in order to turn off the plurality of headlamps upon detection of a low-speed state of the vehicle.
[0006] In order to overcome the aforementioned drawbacks, there is a need to provide a system that is an enhancement to the normal vehicle and is capable of switching off a high beam upon detection of a low-speed state (such as parking state, zero speed state, stopped state) of the vehicle in order to provide autonomous and safe driving, thereby reducing accidents.
OBJECTS OF THE INVENTION
[0007] The principal object of the present invention is to overcome the disadvantage of the prior art.
[0008] Another object of the present invention is to provide a system that helps in safe driving by controlling a vehicle headlamp by turning off a high beam in a low-speed state.
[0009] Another object of the present invention is to provide a system that helps in turning off the high beam when the vehicle is at the low-speed state on any blind curves especially on hilly roads so that it does not flash the light directly on the vehicle coming from the opposite side of the blind curve.
[0010] Another object of the present invention is to provide a system that helps in the reduction of battery consumption while the vehicle is at parking or waiting on the red lights.
[0011] Another object of the present invention is to provide a system that helps in reducing accidents and provides autonomous and safe driving.
[0012] Another object of the present invention is reduction in number of components used thus helping with cost and reliability.
[0013] Another object of the present invention is to provide a scalable/versatile system that may add multiple features/accessories with minimal changes in the system.
SUMMARY OF THE INVENTION
[0014] The present invention relates to a multipurpose system installed in a vehicle that controls the vehicle headlamps by switching off a high beam lighting mode automatically when a vehicle low-speed state is detected in order to reduce the battery consumption. This system also helps in reducing the chances of accidents.
[0015] According to an embodiment of the present invention, a system for controlling vehicle headlamps in a low- speed state, comprising, plurality of headlamps that is a high beam, and a low beam fixed on a front part of a vehicle, configured to work at an on state and an off state, wherein the headlamp is anyone of a plurality of LED (Light Emitting Diode) lamps, a xenon lamps, and a halogen lamp, and at least one control unit coupled to the plurality of headlamps for turning off the plurality of vehicle headlamps after determining that the vehicle is in a low-speed state (such as parking state, zero speed state, stopped state) based on the measured vehicle speed through a vehicle speed measuring unit that is a wheel speed sensor for detecting the rational speed of the vehicle wheel and send a detection signal to the control unit.
[0016] According to an another embodiment of the present invention, a method for controlling vehicle headlamps in a low-speed state, including, determining an activation or deactivation state of plurality of headlamps that is anyone of a plurality of LED (Light Emitting Diode) lamp, a xenon lamp, and a halogen lamp, by a control unit, wherein the plurality of headlamps is a high beam and a low beam, and turning off the plurality of headlamps by the control unit after detecting a low-speed state of a vehicle based on the measured vehicle speed through a vehicle speed measuring unit that is a wheel speed sensor for detecting the rational speed of the vehicle wheel and send a detection signal to the control unit, wherein the low-speed state is anyone of a parking state, zero speed state, stopped state of the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings illustrate various embodiments of systems, methods, and embodiments of various other aspects of the disclosure. Any person with ordinary skills in the art will appreciate that the illustrated element boundaries (e.g. boxes, groups of boxes, or other shapes) in the figures represent one example of the boundaries. It may be that in some examples one element may be designed as multiple elements or that multiple elements may be designed as one element. In some examples, an element shown as an internal component of one element may be implemented as an external component in another, and vice versa. Furthermore, elements may not be drawn to scale. Non-limiting and non-exhaustive descriptions /are described with reference to the following drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating principles.
[0018] Fig.1 illustrates a line diagram of a system 100, according to an embodiment of a present invention;
[0019] Fig. 2 is a front elevation view showing a front portion of a vehicle 200 equipped with plurality of headlamps of the present invention; and
[0020] Fig. 3 illustrates a flow chart depicting a method 300, according to an embodiment of the invention.
DETAILED DESCRIPTION
[0021] Embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings in which like numerals represent like elements throughout the several figures, and in which example embodiments are shown. Embodiments of the claims may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. The examples set forth herein are non-limiting examples and are merely examples among other possible examples.
[0022] 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.
[0023] 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 and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred systems and methods are now described.
[0024] The present invention relates to a system and a method to control vehicle headlamps in a low-speed state for turning off plurality of vehicle headlamps by detecting an activation state of plurality of vehicle headlamps so that the vehicle is visible to a driver who is coming from the front. This system has automatic switching capability so that it automatically turns off the high beam without the need of driver intervention upon detection of a low-speed state of the vehicle.
[0025] FIG.1 illustrates a line diagram of a system 100, according to an embodiment of a present invention. The system 100 essentially includes plurality of headlamps (102A,102B, 104A, 104B) fixed on a front part 205 of a vehicle. The plurality of headlamps (102A,102B, 104A, 104B) is a high beam (102A, 104A) and a low beam (102B,104B). These headlamps (102A,102B, 104A, 104B) are configured to work at an on-state and an off-state. In another embodiment, at least one control unit 106 coupled to the plurality of headlamps (102A,102B, 104A, 104B) for turning off the plurality of vehicle headlamps (102A,102B, 104A, 104B) after determining that the vehicle 200 is in a low-speed state based on the measured vehicle speed. The low-speed state is anyone of a parking state, a zero speed state, and a stopped state. The vehicle 200 speed is measured through a vehicle speed measuring unit that is a wheel speed sensor for detecting the rational speed of the vehicle 200 wheel and sending a detection signal to the control unit 106.
[0026] FIG. 2 is a front elevation view showing a front portion of a vehicle 200 equipped with a plurality of headlamps (102A,102B, 104A, 104B) of the present invention The vehicle 200 includes the plurality of headlamps (102A, 102B, 104A, 104B) placed at a left side and a right side of the front part 205 of the vehicle 200, configured to work at a high beam (102A,104A) and a low beam (102B,104B). The high beam (102A,104A) has a lamp for illuminating a large range from the vehicle 200 and the low beam (102B,104B) has the lamp for illuminating a range in the vicinity of the vehicle 200. The plurality of headlamps (102A, 102B, 104A, 104B) is anyone of a plurality of LED (Light Emitting Diode) lamps, a xenon lamp, and a halogen lamp.
[0027] The control unit 106 may, according to another embodiment of the invention, be coupled with the plurality of headlamps (102A, 102B, 104A, 104B) inside the vehicle 200. The control unit 106 is connected with a PCB (Printed Circuit Board) which contains a switch that is connected to the plurality of headlamps (102A, 102B, 104A, 104B). The control unit 106 may be a dedicated controller for the various headlamps (102A,102B, 104A, 104B) operations or it may be a microprocessor. The control unit 106 basically monitors the speed of the vehicle 200 through the vehicle speed measuring unit which is the wheel speed sensor. This sensor continuously detects the rational speed of the vehicle 200 wheel and checks the RPM (Rotation Per Minute) of the vehicle 200 tires. As soon as the RPM count falls below the minimum threshold it immediately sends a signal to the control unit 106 which controls the switch placed on the PCB. The control unit 106 operates as per the signal received from the vehicle speed measuring unit and turns the switch in the off state which eventually turns off the high beam (102A, 104A) of the plurality of vehicle headlamps (102A, 102B, 104A, 104B).
[0028] Fig 3 illustrates the method for controlling vehicle headlamps in a low-speed state. The method 300 includes plurality of vehicle headlamps (102A, 102B, 104A, 104B) fixed on a front part 205 of a vehicle 200. The plurality of headlamps (102A, 102B, 104A, 104B) are configured to work on an activated or deactivated state and this state is determined by at least one control unit 106, as shown in block 302. The control unit is coupled to the plurality of headlamps (102A, 102B, 104A, 104B) for turning off the plurality of vehicle headlamps (102A, 102B, 104A, 104B) after determining that the vehicle 200 is in a low-speed state based on the measured vehicle speed, as shown in block 304. The plurality of headlamps (102A, 102B, 104A, 104B) is anyone of a plurality of LED (Light Emitting Diode) lamp, a xenon lamp, and a halogen lamp. The vehicle 200 speed is measured through a vehicle 200 speed measuring unit that is a wheel speed sensor for detecting the rational speed of the vehicle 200 wheel and sending a detection signal to the control unit 106, wherein the low-speed state is anyone of a parking state, zero speed state, stopped state of the vehicle 200.
[0029] Moreover, although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one will readily appreciate from the disclosure, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

We Claims:

1. A system for controlling vehicle headlamp in a low-speed state, comprising:
plurality of headlamps (102A, 102B, 104A, 104B), fixed on a front part 205 of a vehicle 200, configured to work at an on state and an off state; and
at least one control unit 106 coupled to the plurality of headlamps (102A,102B, 104A, 104B), wherein the control unit 106 turns off the plurality of vehicle headlamps (102A, 102B, 104A, 104B) after determining that the vehicle 200 is in a low-speed state based on the measured vehicle 200 speed.
2. The system 100 as claimed in claim 1, wherein the control unit 106 is used for detecting the on or off state of the plurality of headlamps (102A, 102B, 104A, 104B) that is a high beam, and a low beam.
3. The system 100 as claimed in claim 1, wherein the system 100 includes a vehicle speed measuring unit for detecting speed of the vehicle 200.
4. The system 100 as claimed in claim 1, wherein the vehicle speed measuring unit is a wheel speed sensor for detecting the rational speed of the vehicle 200 wheel and send a detection signal to the control unit 106.
5. The system 100 as claimed in claim 1, wherein the low-speed state is anyone of a parking state, zero speed state, stopped state of the vehicle 200.
6. The system 100 as claimed in claim 1, wherein the headlamp (102A,102B, 104A, 104B) is anyone of a plurality of LED (Light Emitting Diode) lamps, a xenon lamps, and a halogen lamp.
7. A method for controlling vehicle headlamp in a low-speed state, comprising:
determining, by a control unit 106, an activation or deactivation state of plurality of headlamps (102A, 102B, 104A, 104B); and
turning off, by the control unit 106, the plurality of headlamps (102A, 102B, 104A, 104B) after detecting a low-speed state of a vehicle 200 based on the measured vehicle 200 speed.
8. The method 300 as claimed in claim 7, wherein the method 300 includes a vehicle speed measuring unit for detecting speed of the vehicle 200.
9. The method 300 as claimed in claim 7, wherein the vehicle speed measuring unit is a wheel speed sensor for detecting the rational speed of the vehicle 200 wheel and send a detection signal to the control unit 106.
10. The method 300 as claimed in claim 7, wherein the low-speed state is anyone of a parking state, zero speed state, stopped state of the vehicle.
11. The method 300 as claimed in claim 7, wherein the headlamp (102A,102B, 104A, 104B) is anyone of a plurality of LED (Light Emitting Diode) lamps, a xenon lamps, and a halogen lamp.