Description:AN AUTOMATIC LIGHTING SYSTEM FOR A VEHICLE AND METHOD THEREOF
TECHNICAL FIELD
[0001] The present subject matter generally relates to a system and method 5 of an automatic lighting system for a vehicle. More particularly, but not exclusively to select a plurality of lighting units based on various parameters and automatically keeping them activated for a predetermined period of time in a vehicle and a method thereof.
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BACKGROUND
[0002] A conventional vehicle, including saddle type vehicle comes equipped with a headlamp located at the front of the vehicle. The headlamp serves as an illumination source during low-light conditions or at night. The main function of a headlamp is to provide visibility for the user of the saddle type 15 vehicle, ensuring safe navigation on the road and making the vehicle visible to other road users. Generally, the headlamp comprises of a light bulb, which is usually an incandescent, halogen, or more modern LED bulb, which emits the light necessary for illumination. A reflector is positioned behind the bulb, to reflect and direct the light emitted by the bulb forward, focusing it into a 20 beam pattern that lights up the road ahead. The lens covers the front of the headlamp and is usually made of clear, durable material, such as a polycarbonate, to protect the bulb and the reflector while allowing light to pass through without distortion.
[0003] The primary purpose of the headlamp is to improve the user’s 25 visibility in low-light conditions, such as at dusk, during nighttime, or in adverse weather like fog or rain. It allows the user to see potential hazards on the road, such as obstacles, pedestrians, or other vehicles. Besides helping the user see, the headlamp also serves as a safety feature by making the vehicle more visible to other drivers and pedestrians. This is especially crucial during 30 low-visibility conditions when other road users may have difficulty spotting the smaller profile of a vehicle.
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[0004] However, in conventional vehicles, when a user has parked their vehicle in a dark area or at night, having the headlamps turn off immediately after the vehicle is turned off can result in reduced visibility when exiting the vehicle and navigating the surroundings. In some situations, such as in poorly lit areas or in inclement weather, it may be dangerous to have the headlamps 5 switched off immediately after turning off the vehicle thereby provide no visibility to other road users or pedestrians. Since there is sudden darkness due to the headlamps is turned OFF after the vehicle is turned OFF, the surrounding is not illuminated thereby offering an unsafe environment.
[0005] Conventional vehicular lighting systems predominantly rely on 10 headlamp assemblies for visibility during parking. However, during reverse parking scenarios, the efficacy of headlamps is diminished as the primary focus is on the vehicle's rearward trajectory. Therefore, there is a need to strategically employ various lighting units in the vehicle to enhance visibility in proximity to the vehicle during parking, thereby providing an improved 15 and more contextually relevant lighting solution. Existing automatic lighting systems lack the capability to intelligently respond to obstacles, such as walls, in their immediate vicinity. When these lighting units activate, they often illuminate the obstruction directly in front of them, resulting in inefficient use of energy and compromised illumination effectiveness. 20
[0006] Conventional automatic lighting units lack the ability to detect obstacles within their proximity, leading to suboptimal illumination when obstructed by walls or other barriers. This deficiency results in wasted energy consumption, reduced overall lighting efficiency, and diminished user satisfaction. The absence of a mechanism to adaptively adjust the illumination 25 pattern in the presence of obstacles limits the practicality and versatility of these systems.
[0007] In addition to this, it is also necessary to ensure that the headlamps are not turned ON for a long period of time since an extended use of the headlamps can lead to draining the battery. Moreover, users may occasionally 30 forget to turn off their headlamps manually after parking, leading to drained batteries and inconveniencing the user at a later stage. The headlamps are
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turned ON even when the vehicle is not in use, or when nobody is near the vehicle and needs their surroundings to be illuminated. [0008] Therefore, it is necessary for a user to be able to configure the settings of the headlamps as per their requirements. It is also necessary that a balance is sought between ensuring safety and convenience for drivers while 5 minimizing potential battery drain and disturbance to others.
[0009] Additionally, a safety feature should come at the convenience of the user, and should be affordable with fewer additional parts. Conventional lighting systems, including headlamp systems, with additional features involve supplementary parts which have maintenance requirements, and the 10 malfunctioning of such supplementary parts may increase the cost of repairs and servicing. Moreover, finding replacements might be even more challenging, which may come at a premium cost compared to standard parts. Furthermore, complexity to the functionality can lead to potential reliability issues, which may require more frequent maintenance or repairs. 15
[00010] Thus, there is a need in the art for a method and a system for an automatic lighting system for a vehicle, and a method thereof which addresses at least the aforementioned problems and other problems of known art.
[00011] Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through 20 comparison of described systems with some aspects of the present disclosure, as set forth in the remainder of the present application and with reference to the drawings.
SUMMARY OF THE INVENTION 25
[00012] According to embodiments illustrated herein, the present invention provides a system and method of an automatic lighting system for a vehicle.
[00013] The present invention provides an automatic lighting system for a vehicle. The automatic lighting system comprises of a control unit, a plurality of lighting units, and a lighting unit controller. The control unit is configured 30 to detect a plurality of vehicle parameters. The lighting unit controller is
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communicably connected to the control unit. The control unit is configured to send determination of a plurality of predefined conditions based on the plurality of vehicle parameters are satisfied to the lighting unit controller. The lighting unit controller is configured to selectively switch ON at least one of the plurality of lighting units for a predetermined time period based on at least 5 a status of a first function, an ignition key input, a level of ambient light surrounding the vehicle, and a distance between the vehicle and a plurality of objects. [00014] According to embodiments illustrated herein a method of operation of an automatic lighting system for a vehicle. The method comprises steps of 10 the control unit receiving a plurality of vehicle parameters. Further, the control unit determining when a plurality of predefined conditions are satisfied. The plurality of predefined conditions based on the received plurality of vehicle parameters. The control unit sends the determination of the plurality of predefined conditions being satisfied to a lighting unit 15 controller. The lighting unit controller selectively switches ON at least one of the plurality of lighting units for a predetermined time period based on a status of a first function, an ignition key input, the received determination of the plurality of predefined conditions, a level of ambient light surrounding the vehicle, and a distance between the vehicle and a plurality of objects. 20
[00015] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS 25
[00016] The details are described with reference to an embodiment of an automatic lighting system for a vehicle and method thereof along with the accompanying diagrams. The same numbers are used throughout the drawings to reference similar features and components.
[00017] Figure 1 exemplarily illustrates a vehicle in accordance with an 30 embodiment of the present disclosure.
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[00018] Figure 2 exemplarily illustrates a block diagram depicting the communication between various components in accordance with an embodiment of the present disclosure.
[00019] Figure 3 exemplarily illustrates a flowchart depicting the method of operation of the automatic lighting system for a vehicle in accordance with 5 an embodiment of the present disclosure.
DETAILED DESCRIPTION
[00020] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers 10 are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary 15 only, with the true scope and spirit being indicated by the following claims.
[00021] An objective of the present subject matter is to provide an automatic lighting system for a vehicle allows the user to see potential hazards on the road, such as obstacles, pedestrians, or other vehicles for a predetermined time period after the user turns OFF the vehicle. Therefore, such an automatic 20 lighting system avoid reduced visibility when the user has parked their vehicle in a dark area or at night, having the lighting units turn off immediately after the vehicle is turned off, thereby providing the user an aid to navigate their surroundings easily.
[00022] An objective of the present subject matter is to provide an intelligent 25 automatic lighting system equipped with object detection. The system and method of the present invention will selectively switch on at least one of the plurality of lighting units, based on detected barriers, such as walls, and optimize energy consumption and enhance the overall effectiveness of the lighting unit. 30
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[00023] Another objective of the present subject matter is to ensure that the lighting units are turned OFF for a predetermined time period, thereby avoiding the draining of the battery. Moreover, it helps users by eliminating the need to manually turn OFF the lighting units after parking, therefore saving the batteries from being drained and inconveniencing the user at a later 5 stage. Another object of the present subject matter is to turn the lighting units OFF when the vehicle is not in use, and when nobody is near the vehicle and needs their surroundings to be illuminated after a predetermined time period.
[00024] Another objective of the present subject matter is to strike balance between ensuring safety and convenience for drivers while minimizing 10 potential battery drain and disturbance to others.
[00025] Another objective of the present subject matter is for an automatic lighting system which is affordable with fewer additional parts, and easier communication between the various components of the automatic lighting system, thereby reducing maintenance requirements and complexity of the 15 system which eliminates potential reliability issues, and frequent maintenance or repairs.
[00026] As per an aspect of the present subject matter, the automatic lighting system comprises of a control unit, a plurality of lighting units, and a lighting unit controller. The control unit is configured to detect a plurality of vehicle 20 parameters. The lighting unit controller is communicably connected to the control unit. The control unit is configured to send determination of a plurality of predefined conditions is satisfied to the lighting unit controller. The plurality of predefined conditions are based on the plurality of vehicle parameters. The lighting unit controller is configured to selectively switch 25 ON at least one of the plurality of lighting units for a predetermined time period based on at least a status of a first function, an ignition key input, a level of ambient light surrounding the vehicle, and a distance between the vehicle and a plurality of objects.
[00027] As per an aspect of the present subject matter, the plurality of lighting 30 units comprises of a first set of lighting units and a second set of lighting units.
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The first set of lighting units is disposed in a front portion of the vehicle, and the second set of lighting units is disposed in a rear portion of the vehicle. The plurality of lighting units comprises of a headlamp unit, a brake light, a tail light, a turn signal lamp, a fog light, a car light. The system and method provided in the present invention provides lighting such that these lighting 5 units are not obstructed by any objects/obstacles. Within the vehicle, the front portion is configured to house a steering assembly, the seat and the rider is positioned to control in the front portion to manoeuvre the vehicle effectively. The rear portion may accommodate utility functions or passenger seating, offering versatility in application. 10 [00028] As per an aspect of the present subject matter, the control unit is configured to receive at least the predetermined time period and the status of the first function from a first device. The control unit is configured to send the predetermined time period and the status of a first function to the lighting unit controller. The lighting unit controller is configured to selectively switch 15 ON at least one of the plurality of lighting units for the predetermined time period
when the status of the first function is enabled. In an embodiment, the first device is a mobile device of a user of the vehicle. Through the first device, the user is enabled to customize the predetermined time period for which the lighting unit is in ON state. This is particularly beneficial if the 20 surroundings are extremely dark, and the user has to walk a longer distance towards their destination. The user is enabled to customize the feature as per their requirements, thereby making this feature a personalized experience. In another embodiment, the first device is an instrument cluster on the vehicle which enables the user to customize directly on the vehicle. 25
[00029] As per another aspect of the present subject matter, the first function is enabled by at least one of a switch and the first device. The switch is disposed on a steering mechanism of the vehicle. In an embodiment, the first function indicates the automatic lighting system for the vehicle feature to be enabled. Therefore, in cases where the user does not want to use this feature, 30 the user is enabled to disable the feature as per their convenience. In an embodiment, the first function is enabled by a switch. The switch is disposed
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on a handlebar of the vehicle, where the user can easily access it. In another embodiment, this feature can also be enabled using the mobile device of the user. [00030] As per an aspect of the present subject matter, the lighting unit controller is configured to detect the ignition key input through an ignition 5 line. The lighting unit controller is configured to switch ON at least one of the plurality of lighting units for the predetermined time period
when the ignition key input transitions from ON to OFF. Here, the ignition line acts as a trigger for the lighting unit controller to activate the feature. Based on whether the ignition key input transitions from ON to OFF, the lighting unit 10 controller initiates the feature based on the other inputs from the control unit.
[00031] As per an aspect of the present subject matter, the plurality of predefined conditions is based on a plurality of vehicle parameters. The plurality of vehicle parameters comprises of a vehicle speed, a stand status, and data from a plurality of sensors. In another embodiment, the vehicle 15 parameters comprise of Engine RPM, system error status, battery voltage, charging system status. These vehicle parameters are selected such that the lighting system can ensure that the vehicle is totally stopped and ready to be parked. These vehicle parameters also exclude cases where the user is merely standing still, possibly stuck in traffic, or waiting for a co-passenger. The 20 predefined conditions for this determination involve at least the following criteria: Engine RPM registering at zero, battery voltage exceeding a predetermined threshold to mitigate unwarranted battery drainage, and a null status in the system error parameter. The orchestration of these conditions ensures a comprehensive evaluation of the vehicle's operational status, 25 allowing for a judicious and systematic confirmation that the vehicle is indeed at a standstill and on the verge of entering a parking state. Therefore, the plurality of predefined conditions are to ensure that the vehicle is at a standstill, moreover, about to be parked. The plurality of predefined conditions can also include engine RPM is zero, a battery voltage is more 30 than a threshold value to prevent unnecessary drainage of battery, the system error status is null.
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[00032] As per an aspect of the present subject matter, the plurality of sensors comprises of an ambient light sensor and a first sensor. The ambient light sensor is effective to detect the level of ambient light surrounding the vehicle. The first sensor is configured to measure the distance between the vehicle and the plurality of objects disposed around the vehicle. The ambient light sensor 5 is effective to detect a level of ambient light surrounding the vehicle. The ambient light sensor ensures that the automatic lighting system does not activate in broad daylight.
[00033] As per an aspect of the present subject matter, the first sensor comprises of an ultrasonic sensor, and the plurality of objects comprises of a 10 wall, a vehicle, and a pole. The first sensor is disposed in the front portion of the vehicle enabling the first sensor to detect the plurality of objects disposed in front of the vehicle. In another embodiment, the first sensor is disposed in the rear portion of the vehicle to detect the objects behind the vehicle. The first sensor can be used to understand the surroundings of the vehicle and 15 enable the lighting units as per the surroundings.
[00034] As per an aspect of the present subject matter, the plurality of predefined conditions comprises of conditions pertaining to the level of ambient light surrounding the vehicle is below a threshold level, the vehicle speed is zero, the stand status is activated. In an embodiment, the control unit 20 receives the plurality of vehicle parameters from a plurality of vehicle control units to detect the current vehicle condition.
[00035] The present invention employs the use of existing controllers, making the implementation of this invention easier. In an embodiment, a distributed architecture is followed for the present invention, the control unit 25 receives the input from multiple points and makes the decision. The control unit further sends the communication to the lighting unit controller. This avoids computation at multiple controllers and makes the design less complex. This architecture also enables flexibility to add new developments.
[00036] As per an aspect of the present invention, the lighting unit controller 30 is configured to switch ON at least one of the first set of lighting units when
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the measured distance between the vehicle and the plurality of objects is more than the first distance threshold. The lighting unit controller is configured to switch ON at least one of the second set of lighting units when the measured distance between the vehicle and the plurality of objects is less than the first distance threshold. The measure distance being less than the threshold would 5 indicate that there are obstacles and objects lying in front of the vehicle. Therefore, the lighting units that are disposed in the front portion of the vehicle will not be of help to the user to light the surroundings and aid the user while walking away from the vehicle. Similarly, if the measured distance is more than the threshold, the system understands that there are no obstacles 10 in front of the vehicle, therefore, the lighting units can be activated to illuminate the surroundings of the vehicle. In another embodiment, a plurality of first sensors can be disposed around the vehicle to detect the distance between objects and the vehicle from all directions. Based on the data returned by the plurality of first sensors, the vehicle can selectively switch 15 ON the plurality of lighting units that will illuminate the surroundings more effectively. [00037] As per an aspect of the present invention, the control unit is a speedometer of the vehicle. The first device is one of an instrument cluster of the vehicle, and an external device. The lighting unit controller and the control 20 unit is communicably connected through CAN communication.
[00038] As per another aspect of the present invention provides a method of operation of an automatic lighting system for a vehicle. The method comprises steps of the control unit receiving a plurality of vehicle parameters. Further, the control unit determining when a plurality of predefined 25 conditions are satisfied. The plurality of predefined conditions based on the received plurality of vehicle parameters. The control unit sends the determination of the plurality of predefined conditions is satisfied to a lighting unit controller. The lighting unit controller selectively switches ON at least one of the plurality of lighting units for a predetermined time period based on 30 a status of a first function, an ignition key input, the received determination
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of the plurality of predefined conditions, a level of ambient light surrounding the vehicle, and a distance between the vehicle and a plurality of objects. [00039] As per an aspect of the present invention, the method further comprises steps of the lighting unit controller receiving the predetermined time period from at least one of the control unit and the status of the first 5 function from at least one of the control unit. The lighting unit controller receives the ignition key input through ignition line.
[00040] As per an aspect of the present invention, the plurality of vehicle parameters comprises of a vehicle speed, a stand status, and data from a plurality of sensors. The plurality of sensors comprises of an ambient light 10 sensor and a first sensor. The ambient light sensor is effective to detect a level of ambient light surrounding the vehicle, and the first sensor is configured to measure the distance between the vehicle and the plurality of objects disposed around the vehicle.
[00041] As per an aspect of the present invention, the plurality of predefined 15 conditions comprises of the level of ambient light surrounding the vehicle is below a threshold level, the vehicle speed is zero, the stand status is enabled.
[00042] As per an aspect of the present invention, the method further comprises steps of the lighting unit controller switching ON at least one of a first set of lighting units when the measured distance between the vehicle and 20 the plurality of objects is more than the first distance threshold. The method further comprises of the lighting unit controller switching ON at least one of a second set of lighting units when the measured distance between the vehicle and the plurality of objects is less than the first distance threshold. The first set of lighting units is disposed in a front portion of the vehicle, and the second 25 set of lighting units is disposed in a rear portion of the vehicle.
[00043] The present subject matter is described using an automatic lighting system for a vehicle and method thereof, whereas the claimed subject matter can be used in any other type of application employing above-mentioned automatic lighting system for a vehicle and method thereof, with required 30 changes and without deviating from the scope of invention. Further, it is
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intended that the disclosure and examples given herein be considered as exemplary only. [00044] The terms “an embodiment”, “embodiment”, “embodiments”, “the embodiment”, “the embodiments”, “one or more embodiments”, “some embodiments”, and “one embodiment” mean “one or more (but not all) 5 embodiments of the invention(s)” unless expressly specified otherwise. The terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless expressly specified otherwise. The terms “a”, “an” and “the” mean “one or more”, unless expressly specified otherwise. 10
[00045] The embodiments of the present invention will now be described in detail with reference to an automatic lighting system for a vehicle with the accompanying drawings. However, the present invention is not limited to the present embodiments. The present subject matter is further described with reference to accompanying figures. It should be noted that the description and 15 figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to 20 encompass equivalents thereof.
[00046] Figure 1 exemplarily illustrates a vehicle (200) in accordance with an embodiment of the present disclosure. In an embodiment of the present invention, the plurality of lighting unit (210a, 210b) is disposed in a front portion (216a) of the vehicle (200) and the rear portion (216b) of the vehicle 25 (200). As per an embodiment, the instrument cluster (206) or the first device, which may be a mobile device, enables the user to enter the predetermined time period for which the plurality of lighting units (210a, 210b) is switched ON. The plurality of lighting units (210a, 210b) is used to light the surroundings of the vehicle (200) when the user has parked the vehicle and is 30 exiting the parking area.
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[00047] The invention comprises a control unit (208) and a plurality of lighting units (210a, 210b) with a dedicated lighting unit controller (212). These components are communicably connected, allowing for coordinated control. The lighting unit controller (212) is configured to for conditional illumination and to switch the lighting unit’s ON for a predetermined time 5 period based on several factors.
•Status of a first function, which can be enabled or disabled by a switchon the vehicle's steering mechanism. In an embodiment of the presentinvention, the steering mechanism is a handlebar of the vehicle. It canalso be switched ON using a mobile device or any other external10 device that the user can interact with.
•Ignition key input, particularly transitioning from ON to OFF.
•Determination of predefined conditions, including vehicle parametersand sensor data.
[00048] The system allows for external configuration by receiving the 15 predetermined time period from an external device or the instrument cluster of the vehicle. This provides flexibility and adaptability to different scenarios. The determination of predefined conditions considers various vehicle parameters such as speed, stand status, and data from sensors (including an ambient light sensor, and a first sensor comprising an ultrasonic sensor). This 20 ensures intelligent and context-aware lighting unit control. Further, in an embodiment, users can customize the predetermined time period through the instrument cluster, providing a user-friendly interface. The instrument cluster includes the speedometer, which comprises sensors on its outer surface.
[00049] The lighting unit controller and control unit are communicably 25 connected through a Controller Area Network (CAN) communication, ensuring effective and reliable communication between the components. The system enhances safety by ensuring optimal visibility through intelligent lighting unit control. It contributes to energy efficiency by activating the plurality of lighting units, when necessary, based on environmental 30 conditions and vehicle status. The automatic lighting system's response to
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transitions in the ignition key input ensures that the lighting unit remains ON for a predetermined time after the ignition key is switched OFF, addressing real-world scenarios where additional illumination might be needed. In summary, the invention introduces a technically sophisticated automatic lighting system that intelligently considers various factors for optimal and 5 adaptive lighting unit control, promoting safety, energy efficiency, and user customization. [00050] In an embodiment, the lighting unit is a headlamp unit, a brake light, a tail light, a turn signal lamp, a fog light, a car light of the vehicle. However, the lighting unit can also be an additional lighting unit being introduced in the 10 vehicle for achieving the objectives of this present invention.
[00051] Figure 2 exemplarily illustrates a block diagram depicting the communication between various components in accordance with an embodiment of the present disclosure. The automatic lighting system comprises of a control unit (208), a plurality of lighting unit (210a, 210b). 15 The plurality of lighting unit (210a, 210b) comprises of a first set of lighting units (210a) and a second set of lighting units (210b) which are disposed at a front portion and a rear portion of the vehicle respectively. The lighting unit controller (212) is communicably connected to the control unit (208). The lighting unit controller (212) is configured to detect the ignition key input 20 through an ignition line, similarly, the control unit (208) is also configured to detect the ignition key input. The control unit (208) is configured to send the determination of the plurality of predefined conditions to the lighting unit controller (212). In an embodiment, the control unit (208) is a speedometer of the vehicle (200). In another embodiment, the instrument cluster (206) 25 comprises the speedometer, and the speedometer comprising the plurality of sensors disposed on an outer surface of the speedometer. In an embodiment, the lighting unit controller (212) and the control unit (208) are communicably connected through CAN communication. A Battery (202) is configured to supply power to all the electrical components including the control unit (208), 30 the lighting unit controller (212), the plurality of lighting unit (210a, 210b), and the Vehicle Control Unit (VCU) or the Engine Control Unit (ECU) (218).
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[00052] Figure 3 exemplarily illustrates a flowchart depicting the method of operation of the automatic lighting system for a vehicle in accordance with an embodiment of the present disclosure.
[00053] The method initiates the process at step 301. The control unit (208) receives a plurality of vehicle parameters. The control unit (208) based on the 5 vehicle parameters, determines when a plurality of predefined conditions are satisfied at step 303. The plurality of predefined conditions comprise of if the level of ambient light surrounding the vehicle (200) is below a threshold level, AND if the vehicle speed zero, AND if the stand status enabled. The control unit (208) sends the determination of the plurality of predefined conditions is 10 satisfied to a lighting unit controller (212). Therefore, the control unit (208) checks the conditions for which the automatic lighting system should switch to an ON state. Upon checking this condition, the control unit (208) then sends the lighting unit controller (212) for further execution of the automatic lighting system at step 304. The plurality of predefined conditions ensure that 15 the vehicle is coming to a stop, and the user is about to deboard the vehicle.
[00054] At step 305, the lighting unit controller (212) receives the predetermined time period from the control unit (208). At step 306, the lighting unit controller (212) receives the status of the first function from the control unit (208). At step 307, the lighting unit controller (212) receives the 20 status of the first function from the control unit (208).
[00055] At step 308, the lighting unit controller (212) checks if the status of the first function enabled. If yes, then the method moves to step 309. If the status of the first function is not enabled, i.e., the user has not turned ON the automatic lighting system functionality, the method moves to step 302, where 25 the vehicle parameters are gauged again, to determine whether the plurality of predefined conditions are fulfilled.
[00056] At step 309, the lighting unit controller (212) checks if the ignition key input transitions from ON to OFF. This indicates that the user is ready to park the vehicle, therefore, the automatic lighting system should start 30 working. If the ignition key input does not transition from ON to OFF, i.e.,
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the user is not about to leave the vehicle, therefore the automatic lighting system functionality is not needed, the method moves to step 302, where the vehicle parameters are gauged again, to determine whether the plurality of predefined conditions are fulfilled. [00057] At step 310, the control unit (308) and the lighting unit controller 5 (212)have determined that the vehicle is coming to a stop and is going to beparked. The control unit (308) now checks whether the measured distancebetween the vehicle and the plurality of objects is more than the first distancethreshold.
[00058] If yes, the method jumps to step 311a. The system has determined 10 that there are no objects in front of the vehicle and therefore, the first set of lighting units that are disposed in front of the vehicle are activated.
[00059] If no, the method jumps to step 311b. The system has determined that there are objects in front of the vehicle which would render the front lights to be useless and therefore, the second set of lighting units that are 15 disposed in rear of the vehicle are activated.
[00060] Therefore, the lighting unit controller (212) switches ON at least one of the plurality of lighting units (210a, 210b) for a predetermined time period as entered by the user. The method terminates at step 312.
[00061] Let's consider a working example of the described automatic lighting 20 system with specific values for illustration. The control unit (208) is integrated into the vehicle’s (the vehicle according to an embodiment being a motorcycle), speedometer. The plurality of lighting unit (210a, 210b) comprises of a first set of lighting units (210a) disposed in the front of the vehicle, such as the headlamp, the fog light and the car light. The second set 25 of lighting units comprises of a brake light, a tail light, a turn signal lamp. The lighting unit controller (212) communicably connected to the control unit through CAN communication. Let us consider that the lighting unit in this case is a headlamp of the vehicle. Below are the parameter readings.
•Speedometer readings (from control unit): Vehicle speed = 10 km/h.30
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•Stand status (from control unit): Stand is activated.
•Ambient light sensor (from lighting unit controller): Ambient light level= 200 lux.
•First sensor (from the first sensor and ultrasonic sensor): Distancemeasured between plurality of objects in the front of the vehicle and the5 vehicle = 2 m.
[00062] Let us consider that the predefined conditions are as below.
•Level of ambient light below a threshold: Yes (200 lux < Threshold).
•Vehicle speed is zero: Yes (10 km/h = 0 m/s).
•Stand status is activated: Yes.10
•First sensor (from the first sensor and ultrasonic sensor): Distancemeasured between plurality of objects in the front of the vehicle and thevehicle less than a distance threshold = Yes. (2m < distance threshold)
[00063] The first function is enabled through the switch on the steering mechanism. The predetermined time period is received from an external 15 device which is 30 seconds and the ignition key transitions from ON to OFF.
[00064] After the ignition key transitions from ON to OFF, the control unit (208)detects the predefined conditions being satisfied. The control unit sendsa determination to the lighting unit controller (212).
[00065] Since, the data from the first sensor (from the first sensor and 20 ultrasonic sensor), the distance measured between plurality of objects in the front of the vehicle and the vehicle less than a distance threshold, the lighting unit controller (212) switches ON the second set of lighting units (210b) which comprises of the brake light, the tail light, the turn signal lamp for the predetermined time period (30 seconds). The second set of lighting units 25 (210b) remains ON even after the ignition key is switched OFF for the specified time period.
[00066] Here, the system determined that there a plurality of objects in the front of the vehicle, and therefore, the illumination will not be effective for the user. Therefore, the system calculates an optimized lighting pattern that 30
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avoids illuminating the obstacles directly. The lighting units in the rear portion of the vehicle will be used to determine that the user is walking rearwardly away from the vehicle after parking, and would need illumination in that direction. [00067] In other embodiments, the first sensor can be disposed in all sides 5 and directions with respect to the vehicle, thereby gauging the surrounding of the vehicle thoroughly. This would aid a deeper and more accurate understanding of the illumination needs of the user and accordingly light the surroundings.
[00068] In the context of the present invention, the lighting units may include 10 various other illuminative elements designed to provide enhanced visibility. The present lighting system integrates these lighting units to achieve optimal safety and user experience. The lighting units comprise of, and are not limited to, headlamp, interior cabin lighting units, tail lamp assembly undercarriage lighting, indicator lighting units, puddle lighting units. The integration of 15 these lighting units, orchestrated in response to the vehicle's operational parameters, ensures a harmonized and contextually responsive lighting system. Such a configuration not only enhances safety during critical phases such as parking but also contributes to an improved and user-centric vehicular experience. 20
[00069] A person with ordinary skills in the art will appreciate that the systems, modules, and sub-modules have been illustrated and explained to serve as examples and should not be considered limiting in any manner. It will be further appreciated that the variants of the above disclosed system elements, modules, and other features and functions, or alternatives thereof, 25 may be combined to create other different systems or applications.
[00070] The technical problem addressed by the invention is how to intelligently and automatically control the vehicle's lighting unit based on various conditions, user preferences, and external factors, thereby enhancing safety, energy efficiency, and user convenience. The system aims to provide 30 an adaptive and customizable solution for lighting unit control in a vehicle.
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[00071] The present invention aims to enhance user safety by incorporating a feature that keeps the lighting unit on for a short duration after the vehicle is parked. This innovative functionality ensures enhanced safety, providing additional visibility for both the driver and passengers as they exit the vehicle, particularly in poorly lit areas. 5
[00072] The present invention aims to improve navigational assistance by keeping the lighting unit on temporarily after parking. The illuminated surroundings facilitate easy manoeuvring and orientation for the driver, contributing to a more seamless and confident experience in locating and navigating through the immediate surroundings. 10
[00073] The present invention aims to heighten security by acting as a visual deterrent. The temporary illumination provided by the post-parking lighting unit feature makes the parked vehicle less appealing to potential thieves, contributing to an overall sense of security for the vehicle owner.
[00074] The present invention aims to enhance accessibility within the 15 vehicle. The temporary illumination after parking makes it easier for users to locate items within the vehicle, particularly in low-light or dark conditions, contributing to a more user-friendly experience.
[00075] The present invention aims to offer customization options for user preferences. Users can tailor the duration of the post-parking lighting unit 20 illumination according to their specific needs, providing a personalized and flexible lighting solution.
[00076] The present invention aims to assist in compliance with safety regulations. In regions where keeping lights on after parking is mandated for safety reasons, this feature ensures that the vehicle remains in accordance 25 with local regulations, contributing to a safer overall driving experience. In light of the above mentioned advantages and the technical advancements provided by the disclosed method and system, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the following solutions to the existing problems in 30 conventional technologies. Further, the claimed steps clearly bring an
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improvement in the functioning of the configuration itself as the claimed steps provide a technical solution to a technical problem. [00077] The present invention aims to leverage a distributed architecture, where one control unit makes decisions, and another executes commands. This approach enhances the overall efficiency and responsiveness of the 5 system, distributing the computational workload and allowing for faster decision-making and execution, thereby improving the reliability and performance of the post-parking lighting unit feature.
[00078] The present invention benefits from CAN communication, a robust and efficient communication protocol widely used in vehicles. CAN 10 communication ensures reliable data transmission between various components, including the control unit responsible for the post-parking lighting unit feature. This reliability minimizes the risk of communication errors, contributing to the overall dependability and effectiveness of the system. 15
[00079] The present invention takes advantage of existing controllers in the vehicle, providing additional features without the need for extra parts. By integrating the post-parking lighting unit feature into existing controllers, the invention optimizes resource utilization, reduces costs associated with additional components, and allows for the seamless incorporation of new 20 functionalities into the vehicle's existing architecture. This approach not only enhances the feature set of the vehicle but also promotes cost-effectiveness and sustainability.
[00080] In view of the above, the claimed limitations as discussed above are not routine, conventional, or well understood in the art, as the claimed 25 limitations enable the above solutions to the existing problems in conventional technologies.
[00081] The described invention solves a technical problem bring provides a tangible technical solution because of at least the below points.
•Concrete Technical Implementation: The invention involves a30 concrete technical implementation of an automatic lighting system for
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a vehicle, complete with specific components such as a control unit, a lighting unit controller, and various sensors. This suggests a tangible and practical application. •Integration of Various Parameters: The invention integrates multipleparameters, such as vehicle speed, stand status, ambient light levels,5 and ignition key input, to intelligently control the lighting unit. Thismultifaceted approach involves a practical combination of technicalelements to achieve a specific functionality.
•Non-Trivial Configuration Options: The inclusion of customizationfeatures through the instrument cluster, allowing users to set the10 predetermined time period, adds a non-trivial aspect to the invention.This goes beyond a simple on/off mechanism and involves user-configurable settings, contributing to an improved technical solution.
•Adaptive Response to Ignition Key Input: The adaptive response ofthe lighting system to transitions in the ignition key input is a specific15 and practical feature. It considers the real-world scenario whereadditional illumination might be needed after the engine is turned off,contributing to the technical advancement.
•Communication Protocol (CAN): The use of the Controller AreaNetwork (CAN) communication between the lighting unit controller20 and the control unit adds a specific technical aspect to the invention.This choice of communication protocol indicates a deliberate and non-trivial decision in the design of the system.
•Effective Sensor Integration: The incorporation of sensors, such as anambient light sensor, for detecting environmental conditions adds a25 technical complexity that is not trivial. The intelligent use of sensordata in decision-making contributes to the non-obviousness of theinvention.
•Adaptive lighting strategy: Based on the understanding of thesurroundings of the vehicle, the user get effective usage of the30 automatic lighting system offered by the present invention.
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[00082] A description of an embodiment with several components in communication with another does not imply that all such components are required, On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the invention.
[00083] Finally, the language used in the specification has been principally 5 selected for readability and instructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter and is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. Accordingly, the embodiments of the present invention are 10 intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
[00084] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of 15 illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
[00085] While the present disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted without 20 departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed, but that the present disclosure will include 25 all embodiments falling within the scope of the appended claims.
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Reference Numerals:
200 – vehicle
202 – battery
204 – ignition key
206 – instrument cluster 5
208 – control unit
210 – plurality of lighting unit
210a – first set of lighting unit
210b – second set of lighting unit
212 – lighting unit controller 10
214 – plurality of sensors – ambient light sensor and first sensor
216a – front portion of the vehicle
216b – rear portion of the vehicle
218 – VCU/ECU , Claims:I/We Claim:
1.An automatic lighting system (100) for a vehicle (200), the automaticlighting system (100) comprising:5
a control unit (208); the control unit (208) being configured to detect a plurality of vehicle parameters;
a plurality of lighting units (210a, 210b);
a lighting unit controller (212), the lighting unit controller (212)being communicably connected to the control unit (208),10 the control unit (208) being configured to send determinationof a plurality of predefined conditions being satisfied to thelighting unit controller (212), wherein the plurality ofpredefined conditions being based on the plurality of vehicleparameters;15
wherein the lighting unit controller (212) being configured to selectively switch ON at least one of the plurality of lighting units (210a, 210b) for a predetermined time period, based on at least a status of a first function, an ignition key input, a level of 20 ambient light surrounding the vehicle (200), and a distance between the vehicle (200) and a plurality of objects.
2.The automatic lighting system (100) for the vehicle (200) as claimed25 in claim 1, wherein the plurality of lighting units (210a, 210b)comprising a first set of lighting units (210a) and a second set oflighting units (210b), wherein the first set of lighting units (210a)being disposed in a front portion (216a) of the vehicle (200), whereinthe second set of lighting units (210b) being disposed in a rear portion30 (216b) of the vehicle (200), and wherein the plurality of lighting units
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(210a, 210b) comprising a headlamp unit, a brake light, a tail light, a turn signal lamp, a fog light, a car light.
3.The automatic lighting system (100) for the vehicle (200) as claimedin claim 1, wherein the control unit (208) being configured to receive5 at least the predetermined time period and the status of the firstfunction from a first device, wherein the control unit (208) beingconfigured to send the predetermined time period and the status of afirst function to the lighting unit controller (212), and wherein thelighting unit controller (212) being configured to selectively switch10 ON at least one of the plurality of lighting units (210a, 210b) for thepredetermined time period when the status of the first function beingenabled.
4.The automatic lighting system (100) for the vehicle (200) as claimed15 in claim 3, wherein the first function being enabled by at least one ofa switch and the first device, wherein the switch being disposed on asteering mechanism of the vehicle (200).
5.The automatic lighting system (100) for the vehicle (200) as claimed20 in claim 1, wherein the lighting unit controller (212) being configuredto detect the ignition key input through an ignition line, wherein thelighting unit controller (212) being configured to switch ON at leastone of the plurality of lighting units (210a, 210b) for thepredetermined time period when the ignition key input transitions25 from ON to OFF.
6.The automatic lighting system (100) for the vehicle (200) as claimedin claim 1, wherein the plurality of predefined conditions being basedon a plurality of vehicle parameters, wherein the plurality of vehicle30 parameters comprising a vehicle speed, a stand status, and data froma plurality of sensors (214).
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7.The automatic lighting system (100) for the vehicle (200) as claimedin claim 6, wherein the plurality of sensors (214) comprising:
an ambient light sensor, wherein the ambient light sensor being effective to detect the level of ambient light surrounding the vehicle (200); and 5
a first sensor, the first sensor being configured to measure the distance between the vehicle and the plurality of objects disposed around the vehicle.
8.The automatic lighting system (100) for the vehicle (200) as claimed10 in claim 1, wherein the first sensor comprising an ultrasonic sensor,and wherein the plurality of objects comprising a wall, a vehicle, anda pole, and wherein the first sensor being disposed in the front portion(216a) of the vehicle enabling the first sensor to detect the plurality ofobjects disposed in front of the vehicle (200).15
9.The automatic lighting system (100) for the vehicle (200) as claimedin claim 1, wherein the plurality of predefined conditions comprisingthe level of ambient light surrounding the vehicle (200) being belowa threshold level, the vehicle speed being zero, the stand status being20 activated.
10.The automatic lighting system (100) for the vehicle (200) as claimedin claim 1, wherein the lighting unit controller (212) being configuredto switch ON at least one of the first set of lighting units (210a) when25 the measured distance between the vehicle and the plurality of objectsbeing more than the first distance threshold, and wherein the lightingunit controller (212) being configured to switch ON at least one of thesecond set of lighting units (210b) when the measured distancebetween the vehicle (200) and the plurality of objects being less than30 the first distance threshold.
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11.The automatic lighting system (100) for the vehicle (200) as claimedin claim 1, wherein the control unit (208) being a speedometer of thevehicle (200), wherein the first device being one of an instrumentcluster of the vehicle, and an external device, wherein the lighting unitcontroller (212) and the control unit (208) being communicably5 connected through CAN communication.
12.A method of operation of an automatic lighting system (100) for avehicle (200), the method comprises steps of:
receiving, by the control unit (208), a plurality of vehicle 10 parameters;
determining, by the control unit (208), when a plurality of predefined conditions are satisfied, the plurality of predefined conditions based on the received plurality of vehicle parameters; 15
sending, by the control unit (208), the determination of the plurality of predefined conditions being satisfied to a lighting unit controller (212);
selectively switching ON at least one of the plurality of lighting units (210a, 210b) for a predetermined time period, by 20 the lighting unit controller (212), based on at least a status of a first function, an ignition key input, the received determination of the plurality of predefined conditions, a level of ambient light surrounding the vehicle (200), and a distance between the vehicle (200) and a plurality of objects. 25
13.The method of operation of the automatic lighting system (100) forthe vehicle (200) as claimed in claim 12, wherein the method furthercomprises steps of:
receiving, by the lighting unit controller (212), the 30 predetermined time period from the control unit (208);
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receiving, by the lighting unit controller (212), the status of the first function from the control unit (208);
receiving, by the lighting unit controller (212), the ignition key input through ignition line.
5
14.The method of operation of the automatic lighting system (100) forthe vehicle (200) as claimed in claim 12, wherein the plurality ofvehicle parameters comprising a vehicle speed, a stand status, and datafrom a plurality of sensors (214), and wherein the plurality of sensors(214)comprising an ambient light sensor and a first sensor, wherein10 the ambient light sensor being effective to detect a level of ambientlight surrounding the vehicle (200), and the first sensor beingconfigured to measure the distance between the vehicle and theplurality of objects disposed around the vehicle
15
15.The method of operation of the automatic lighting system (100) forthe vehicle (200) as claimed in claim 12, wherein the plurality ofpredefined conditions comprising the level of ambient lightsurrounding the vehicle (200) being below a threshold level, thevehicle speed being zero, the stand status being enabled.20
16.The method of operation of the automatic lighting system (100) forthe vehicle (200) as claimed in claim 15, wherein the method furthercomprises steps of:
switching ON, by the lighting unit controller (212), at least one 25 of a first set of lighting units (210a) when the measured distance between the vehicle and the plurality of objects being more than the first distance threshold;
switching ON, by lighting unit controller (212), at least one of a second set of lighting units (210b) when the measured 30 distance between the vehicle and the plurality of objects being less than the first distance threshold,
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wherein the first set of lighting units (210a) being disposed in a front portion (216a) of the vehicle (200), wherein the second set of lighting units (210b) being disposed in a rear portion (216b) of the vehicle (200).
5
17.The method of operation of the automatic lighting system (100) forthe vehicle (200) as claimed in claim 12, wherein the control unit(208)being a speedometer of the vehicle (200).