DESC:FIELD OF THE INVENTION
[001] The present invention relates to a lighting system of a vehicle and a method thereof. More particularly the layout of various light elements and the control of such light elements.

BACKGROUND OF THE INVENTION
[002] A light or lighting system is an essential feature of the vehicle that enables the user of the vehicle to drive at night. Typically, a lighting system comprises one or more light functions such as headlights (HL), position lights, corner lights, and turn indicators therefore, different light intensities are required according to the function. It is a widespread practice to use light - emitting diodes (LEDs) to implement one or more light functions of a motor vehicle. In the conventional system, it may be observed that halogen lamps and/ or Light Emitting diodes (LED)s are used for various lighting functions in a vehicle. However, controlling each of these lamps/LED are performed using different switches or control buttons and requires extensive wiring and/or control mechanism to implement. Furthermore, most of the conventional systems do not operate on user input or user preferences and are not customizable for user requirements/preferences and often have standardized settings which cannot be altered/modified.
[003] In certain aspects, where two-wheeler vehicles using LED modules for lighting functions, do not prefer using a sequential LED system with an independent LED control system. Further, in certain vehicles where a cornering lamp is provided in addition to the traditional headlamp and the Turn signal lamps (TSL)s, a dedicated control system is required so that the LED sequence can be enabled as per the requirement. In the existing two-wheelers, such a system cannot be provided due to the excess space required for the controllers and the signal wires. Also, such a system usually increases the cost of the vehicle.
[004] Conventional systems using modular LED systems rely only on a single communication bus network. Typically, Controller Area Network (CAN) bus network or Local Interconnect Network (LIN) bus networks are used for the control of the lighting system of the vehicle. But using such single communication bus network has its own limitations, such as CAN communication requires lot of wiring requirement thereby increasing the length and complexity of the wiring harness whereas if only LIN is used then LIN can carry limited data/signals.
[005] Since a light function is often produced by a plurality of LEDs, it is becoming possible to propose a module to produce several functions. For example, the use of LEDs in conventional lighting systems entails switching on/switching off the specific set of LED lamps to achieve Low, Mid and High Beam conditions. However, the wiring and/or the control mechanism to achieve the desired effect in using such LED lamps is extensive and complicated. Furthermore, the wiring/control mechanisms to be used in two-wheelers, three-wheelers and four wheeled vehicles are different and often pose unique set of challenges in designing and implementing these wiring/control mechanisms.
[006] Typically, when vehicle systems are designed to communicate with each other, each of the subsystems are designed using modules implementing the required sub-systems. These modules are integrated to work with each other electronically using a Vehicle Control Unit (VCU) for managing and coordinating with different vehicle systems, including lighting which collectively imposes a significant electrical load on the Vehicle Control Unit. This may lead to an impact on the life of the Vehicle Control Unit which is among the expensive components of the vehicle. Further in conventional vehicles the number of components is higher which results in complications and makes the vehicle heavy, hence there is a need for a vehicle where the number of components is reduced.
[007] Vehicle drivers often require different settings of their lighting to be activated when they drive the vehicle. By implementing a modular system, one may be able to customize the activation/deactivation of the lighting systems for their requirements and use. The use of LEDs makes it possible to produce original optical signatures when designing motor vehicle lighting devices.
[008] Hence there is a need to have a lighting system to address the aforementioned problems.

SUMMARY OF THE INVENTION
[009] The present invention relates to a lighting system and a method of using a lighting system in a vehicle. The light control system comprises a control unit for controlling lighting elements in a vehicle. The light control system receives user input as to lighting elements, then determines the state of the vehicle. The control unit based on at least one of the received user inputs and the state of the vehicle, controls the lighting elements of the vehicle.
[010] In one embodiment, the light control system determines the state of the vehicle based on one or more operating parameters from a vehicle control unit. The operating parameters comprises speed of the vehicle, roll angle of the vehicle and state of charge of the vehicle. The operating parameters are received from the vehicle control unit. The light control system receives a user input from a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user. These are transmitted to the control unit via a LIN bus or a CAN bus.
[011] In one embodiment, the light control system receives a user input as to activating/deactivating a plurality of lighting elements in a sequence for a pre-determined period for a vehicle action, then the user input is linked with the vehicle action and then the user input is stored corresponding to the vehicle action.
[012] In one embodiment, on receiving a user input as to the vehicle action, the stored user input is retrieved, and plurality of lighting elements are activated/deactivated based on the stored user input.
[013] In one embodiment, the light control system is configured to adjust brightness of one or more headlamps of the plurality of the lighting elements and selectively activate a turn signal lamp of the plurality of the lighting elements at a specific side of the vehicle based on one or more operating parameters. In one embodiment, the brightness of the headlamps are controlled by using the speed of the vehicle and the turn signal lamps are operated based on the roll angle of the vehicle.
[014] In one embodiment, the light control system is configured to enable at least one of the vehicle cluster or from the plurality of buttons present on the vehicle to receive an input for activating and deactivating plurality of lighting elements for linking as to the vehicle action when the vehicle is stationary and disable the at least one of a vehicle cluster or from a plurality of buttons present on the vehicle for activating and deactivating plurality of lighting elements for linking as to the vehicle action when the speed of the vehicle is greater than a predetermined threshold.
[015] In one embodiment, the light control system is configured to operate the plurality of lighting elements in a default mode when the state of charge of the vehicle is less than a predetermined threshold and stored linked input corresponding to the vehicle action is not activated.
[016] In another embodiment, a method of controlling lighting elements is described. The Light Control system receives a user input as to lighting elements, then determines the state of the vehicle. Based on the state of the vehicle or the user input, the lighting elements of the vehicle are controlled.
[017] In one embodiment, input as to controlling a plurality of lighting elements is received from at least one of a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user, wherein the input from the user is routed to the control unit via at least one of a LIN bus and a CAN bus.
[018] In one embodiment, the state of the vehicle is determined based on one or more operating parameters received from a vehicle control unit. The operating parameters comprises speed of the vehicle, roll angle of the vehicle and state of charge of the vehicle.
[019] In one embodiment, the action of the vehicle is linked to a customized lighting pattern. An input from the user indicative of at least one of activation and deactivation of a plurality of lighting elements in a sequence for a pre-determined period of time is received. The input received from the user is linked to a vehicle action, then stored corresponding to the vehicle action. On performing the vehicle action, the stored linked input is retrieved and the plurality of lighting elements in a sequence for a pre-determined period of time are activated and deactivated.
[020] In one embodiment, brightness of one or more headlamps of the plurality of the lighting elements is adjusted based on the speed of the vehicle and a turn signal lamp of the plurality of the lighting elements at a specific side of the vehicle based on the roll angle of the vehicle.
[021] In one embodiment, at least one of the vehicle cluster or from the plurality of buttons present on the vehicle to receive an input is enabled for activating and deactivating plurality of lighting elements for linking as to the vehicle action only when the vehicle is stationary and disabled if the speed of the vehicle is greater than a predetermined threshold.
[022] In one embodiment, the lighting elements are operated in a default mode if the state of charge of the vehicle is lesser than a predetermined threshold.

BRIEF DESCRIPTION OF THE DRAWINGS
[023] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
[024] Figure 1 shows a block diagram of the implementation of the light control system in accordance with an embodiment of the invention.
[025] Figure 2 shows a functional circuit diagram implementing the light control system in accordance with an embodiment of the invention.
[026] Figure 3A shows a flow diagram that enables a light control system to operate a plurality of lighting elements in accordance with an embodiment of the invention.
[027] Figure 3B shows a flow chart that enables a light control system to operate headlamp of the plurality of lighting elements of the vehicle in accordance with an embodiment of the invention.
[028] Figure 3C shows a flow chart that enables a light control system to operate turn signal lamps of the plurality of lighting elements of the vehicle in accordance with an embodiment of the invention.
[029] Figure 4A shows a flow chart that shows a “key lock/key unlock” sequence that enables the light control system to operate the plurality of lighting elements in accordance with an embodiment of the invention.
[030] Figure 4B shows a flow diagram of the lighting sequences that take place in the headlamps of the plurality of lighting elements when the vehicle performs “key lock/key unlock” action that are implemented in accordance with an embodiment of the invention.
[031] Figure 4C shows a flow diagram of the lighting sequences that take place in the turn signal lamps of the plurality of lighting elements when the vehicle performs “key lock/key unlock” action that are implemented in accordance with an embodiment of the invention.
[032] Figure 5 shows a flow diagram for a “Find me” vehicle action that enables the light control system to operate the plurality of lighting elements in accordance with an embodiment of the invention.
[033] Figure 6 shows a flow diagram for a “follow me / Park assist” in enables the light control system to operate the plurality of lighting elements in accordance with an embodiment of the invention.
[034] Figure 7 shows a flow diagram of the light control system operating the plurality of lighting elements in accordance with an embodiment of the invention.
[035] Figure 8 shows a user interface screen shown on the vehicle cluster display system for customization of the lighting sequence and/or music.

DESCRIPTION OF THE INVENTION
[036] The present invention provides a system and method for light control in a vehicle. The lighting control is implemented using a light control system.
[037] Light Emitting Diode (LED)s are used as primary source of lighting in a vehicle. Use of LEDs as headlamps and Turn Signal Lights (TSL) enable better control of lighting in a vehicle and enable independent control of these LEDs for lighting. Use of LEDs also enables better modularization and control of lighting in a vehicle as a group of LEDs. It is well known to use Controller Area Network (CAN) and a Local Interconnect Network (LIN) bus networks for lighting of LEDs in a vehicle. By optimizing the communication interface, seamless and economical control over the LEDs is achieved.
[038] Typically, a Vehicle Control Unit (VCU) is used to control the lighting elements present in the vehicle. However, having a dedicated control unit for lighting in a vehicle will enable functionality, safety and visual appeal of vehicles and reducing the associated manufacturing expenses. Such a dedicated Lighting Control unit can be implemented in 3-Wheeled, 4-Wheeled vehicles, hybrid vehicles, Electric vehicles, Internal Combustion vehicle or the like. The manner in which a system to control lighting elements in a vehicle is implemented is explained with respect to Figure 1 below.
[039] Figure 1 illustrates a block diagram of the implementation of the light control system (LCS) 150 along with the LEDs that are used as headlamps and as Turn Signal Lights (TSL). Figure 1 illustrates a power source 110, a Local Interconnect Network (LIN) channel input 120, auxiliary lamps (turn signal lamps) 130a, 130b and headlamps 160. All the above elements are connected to the light control system 150. In a preferred embodiment, turn signal lamps 130a, 130b and headlamps 160 are collectively called lighting elements. The light control system 150 is also connected to turn signal lamps 130a, 130b via a Local Interface Network (LIN) interface. The LIN network interface is supported by a LIN channel interface 140. In one embodiment, the light control system 150 is connected to a Vehicle Control Unit (VCU) 120 via a CAN interface. The Vehicle Control Unit 120 is interfaced with the vehicle cluster (not shown) using a CAN interface. All the lighting elements 130a, 130b and 160 are powered by a power source 110. In a preferred embodiment, the power source 110 is a 12V DC source. The light control system 150 also checks the working of the components/subcomponents/interconnected modules using a timed interrupt using the LIN interface.
[040] In one embodiment, an instruction (either from a vehicle action or from a user input) is received from the Vehicle Control Unit (VCU) to activate/deactivate the plurality of lighting elements is received at the light control system 150. Activating a lighting element is enabling the lighting elements to illuminate and deactivating means disabling the lighting elements such that the lighting elements do not illuminate. On receiving the instruction, the light control system 150 determines whether the received instruction has a pre-stored user input associated with the instruction. The light control system 150 then activates/deactivates the lighting elements based on the pre-stored user input. In one embodiment, the light control system 150 activates/deactivates the lighting elements based on the state of the vehicle. The state of the vehicle is determined based on operating parameters of the vehicle. In one embodiment, the operating parameters are the speed of the vehicle, a roll angle of the vehicle and a state of charge of the vehicle. In one embodiment, based on the speed of the vehicle, the brightness of the headlamp 160 is increased. In one embodiment, based on the roll angle, the auxiliary lamps 130a, 130b are activated.
[041] In an example, the light control system 150 receives a user input from the user of the vehicle. The user input may be received either from a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user or from a key fob of the vehicle. The light control system 150 then checks the state of the vehicle. In one embodiment, vehicle state may be determined based on operational parameters of the vehicle. In one embodiment, the vehicle parameters of speed of the vehicle and the roll angle of the vehicle may be determined. Based on the operational parameters, the light control system 150 may perform specific actions as to the activating/deactivating lighting elements 160, 130a, 130b. In one embodiment, the light control system 150 may increase brightness of the headlamps 160 if the speed of the vehicle increases above 60 kmph. In one embodiment, the light control system 150 may activate the turn signal lamps 130a, 130b as to the specific direction, if the roll angle is at 5 degrees or more at the specific direction.
[042] In another example, a user input as to activation/deactivation of lighting elements 130a, 130b, 160 in a sequence for a specific period is linked and stored along with a corresponding vehicle action. The vehicle action may be “vehicle ON/OFF,” “find me,” “park assist” actions. A specific user input to activate/deactivate lighting elements 130a, 130b, 160 is received corresponding to each of these vehicle actions. These specific user inputs are linked with these vehicle actions and stored along with the corresponding vehicle actions. Based on the specific input as to the vehicle action, the stored linked input of lighting elements 130a, 130b, 160 are retrieved and the lighting elements 130a, 130b,160 are activated and deactivated based on the stored linked input. In one embodiment, a music tune may be integrated with the stored linked input by the user for activation and deactivation of the lighting elements 130a, 130b,160.
[043] The lighting elements 130a, 130b and 160 are controlled and/or activated/deactivated is performed using the LIN/CAN interfaces. This may be better understood by understanding the internal circuitry of the LCS 150 that is explained with respect to Figure 2 in detail.
[044] Figure 2 shows the functional circuit diagram 200 implementing the light control system 150 150. circuit 200 consists of a DC-DC Converter 210, a Vehicle Control Unit (VCU) 120, a plurality of turn signal lamps (TSL) 130a, 130b and a light control system 150. The turn signal lamps 130a, 130b and the LEDs 260a-260e operating as headlamps are collectively called lighting elements. The light control system 150 consists of a LIN Transceiver 251, a CAN Transceiver 252, a buck converter 253, a EMI/ EMC Filter circuit 254, a control unit 255, plurality of buck LED drivers 256, 257, 258 and a metal–oxide–semiconductor field-effect transistor (MOSFET) 259 which are operatively connected to a set of LED lights 260a-260e (operating as a headlamp), the left and right turn signal lamps 130a and 130b that operate as auxiliary/ turn signal lamps respectively and the VCU 120 and DC-DC converter 210. In one embodiment, the DC-DC converter 210 performs the function of the power source 110 of Figure 1.
[045] Typically, the light control system 150 controls the brightness of the lighting elements 260a-260e by using a pulse width modulation circuitry. In one embodiment, the light control system 150 has a metal–oxide–semiconductor field-effect transistor (MOSFET) 259 connected to the other LED drivers 256-258 that provides a pulse width modulation signal to the LED drivers 256-258, that in turn are connected to the lighting elements 260a-260e. Based on the pulse signal, the brightness of the lighting elements 260a-260e are controlled.
[046] In one embodiment, the light control system 150 uses the CAN transceiver 252 and CAN bus (not shown) to connect to Vehicle Control Unit (VCU) 120 and the cluster (not shown). In one embodiment, the cluster is a Visual Display/input receiving unit via a touchscreen interface. Typically, the VCU 120 interfaces and controls the interaction with the cluster. The light control system 150 connected to a CAN transceiver 252 enables connection via a CAN bus to the headlamp assembly comprising LEDs 260a-260e. In one embodiment, the light control system 150 receives one or more input sequences from the VCU 120 that has been provided in the cluster (not shown) for lighting one or more lighting elements that are stored and retrieved for activating/deactivating lighting elements. The input sequences are then transmitted via the CAN transceiver 252 that acts as an interface between the physical CAN network and the control unit 255 within the light control system 150. Control unit 255 of the light control system 150 processes the received data, determining the desired lighting sequence, and then instructs the light control system 150 to enable activation and deactivation of lighting elements 260a-260e, 130a, 130b.
[047] In another embodiment, the light control system 150 controls the operations of the other lighting elements using the LIN bus (not shown) and the LIN transceiver 251. For example, control unit 255 receives one or more instructions to activate the LEDs in a specific sequence related to user actions such as key activation of the vehicle etc. Typically, the instructions related to these actions are received at a cluster (not shown) and the VCU 120 receives these instructions and stores them in a vehicle memory unit. On the user performing the related action such as key activation/ key removal, find me and/or park assist, the stored instructions are retrieved and then processed by the control unit 255 to activate/deactivate lighting elements 260a-260e, 130a, 130b as per the stored user input. In one embodiment, control unit 255 utilizes CAN transceiver 252 to communicate to lighting elements connected by CAN bus (not shown) and the control unit 255 utilizes LIN transceiver 252 to communicate to lighting elements 260a-260e, 130a, 130b connected via LIN bus.
[048] In a preferred embodiment, the light control system 150 receives a user input from the user of the vehicle. The user input may be received either from a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user or from a key fob of the vehicle. The light control system 150 then checks the state of the vehicle. In one embodiment, vehicle state may be determined based on operational parameters of the vehicle. In one embodiment, the vehicle parameters of speed of the vehicle, the roll angle of the vehicle and the state of charge of the vehicle may be determined. Based on the operational parameters, the light control system 150 may perform specific actions as to the activating/deactivating headlamps 260a-260e and turn signal lamps 130a, 130b. In one embodiment, the light control system 150 may increase brightness of the headlamps 260a-260e if the speed of the vehicle increases above 60 kmph. In one embodiment, the light control system 150 may activate the turn signal lamps 130a, 130b as to the specific direction, if the roll angle is at 5 degrees or more at the specific direction.
[049] In one embodiment, the light control system 150 receives these operating parameters (speed of the vehicle, the roll angle of the vehicle and the state of charge of the vehicle) from the VCU 120. The VCU 120 transmits the operating parameters to the light control system 150 via the CAN bus to the CAN transceiver 252. The CAN transceiver 252 transmits the operating parameters to the light control system 150. Based on the operating parameters, the light control system 150 may direct the headlamp assembly 260a-260e to be operated based on the current speed of the vehicle, that is, the brightness of the LEDs operating as headlamp assembly may be increased. In one embodiment, based on the turn angle of the vehicle as to a particular direction, if the turn angle is more than 5 degrees, the light control system 150 may activate either of the turn signal lamps, until the turn angle becomes zero, for that direction.
[050] In another embodiment, the light control system 150 receives user input through one of the turn signal indicator buttons. Based on the direction of the turn signal buttons, the light control system 150 activates either of the turn signal lamps 130a, 130b in the direction of the turn signal button.
[051] In yet another embodiment, the light control system 150 receives user input through a mobile device to “find” the vehicle parked in a parking lot. Based on the location of the vehicle, the light control system 150 initiates the “find me” action. In one embodiment, a sound may be generated along with the sequence of lighting elements 260a-260e, 130a, 130b activated/deactivated for a specific period. In one embodiment, the sequence of activating/deactivating lighting elements 260a-260e, 130a, 130b as well as the associated sound may be chosen by the user on the cluster display (not shown), then transmitted to the VCU 120, which is then transmitted to the light control system 150 via the CAN bus to the CAN transceiver 252. The CAN transceiver 252 transmits the choices of the user to the control unit 255, which links the received sequence of lights and the chosen music with the “find me” action and then stores the sequence of activating/deactivating lighting elements 260a-260e, 130a, 130b and sound to the specific action “find me”. In one embodiment, the control unit 255 retrieves the stored sequence for the “find me” from a memory in the vehicle, and activates the lighting elements 260a-e, 130a, 130b based on the stored sequences by transmitting the instructions to activate/deactivate LED lamps functioning as headlamps 260a-d and/or turn signal lamps 130a, 130b via a LIN interface for activating/deactivating them.
[052] In one embodiment, the light control system 150 may store the sequence of activating/deactivating lighting elements 260a-260e, 130a, 130b and sound to be played by the vehicle when the user inserts the key and switches on the vehicle or when the user switches off the vehicle and removes the key. In one embodiment, the light control system 150 may receive the specific sequence of activating/deactivating lighting elements 260a-260e, 130a, 130b and the action to be associated with it via a mobile application or the cluster display. The VCU 120 transmits the received instructions via the CAN interface to the CAN transceiver 252. The CAN transceiver 252 transmits the received instructions to the control unit 255 and then stores the specific sequence. Once the user action is performed, the VCU 120 receives the instruction to perform the action, transmits the same to the light control system 150 and the light control system 150 retrieves and transmits the instructions to the lighting elements 260a-e, 130a, 130b for activating/deactivating the relevant lighting elements.
[053] In one embodiment, the light control system 150 enables the vehicle cluster or the plurality of buttons present on the vehicle to receive an input for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action only the vehicle is stationary. In one embodiment, the light control system 150 receives the speed of the vehicle from the vehicle control unit 120 and if the vehicle speed is 0kmph then the vehicle cluster displays a user interface of Figure 8 to receive input. In another embodiment, the buttons present on the handlebar of the vehicle is enabled to provide input, a corresponding user interface (not shown) is displayed to the user for receiving the input. In one embodiment, the light control system 150 receives the speed of the vehicle from the vehicle control unit 120 and if the vehicle speed is more than 0 kmph then the vehicle cluster and the buttons are disabled to provide input.
[054] In one embodiment, the light control system 150 operates in a default mode, if the state of charge of the vehicle is less than a predetermined threshold. In one embodiment, the predetermined threshold of the state of charge is less than 40%. In an embodiment, the stored linked input is not activated if the State of Charge is less than 40% and the lighting elements 260a-260e, 130a, 130b are operated in a default mode.
[055] However, the light control system 150 disables the vehicle cluster or the plurality of buttons present on the vehicle to receive an input for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action if the vehicle speed is more than 0 kmph.
[056] In an embodiment, control unit 255 is embodied as a multi-core processor, a single core processor, or a combination of one or more multi-core processors and one or more single core processors. For example, the control unit 130 is embodied as one or more of various processing devices, such as a coprocessor, a microprocessor, a controller, a digital signal processor (DSP), a processing circuitry with or without an accompanying DSP, or various other processing devices including integrated circuits such as, for example, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a microcontroller unit (MCU), a hardware accelerator, a special-purpose computer chip, or the like. In another embodiment, control unit 255 is configured to execute hard-coded functionality.
[057] The manner in which the lighting elements are activated/deactivated by the light control system 150 is further explained using Figures 3A-3C of the drawings.
[058] Figure 3A is a generic flow diagram as to operation of the light control system 150 to activate and deactivate the plurality of lighting elements 260a-e, 130a, 130b of the vehicle. At step 310, the light control system 150 receives user input. The user input may be received either from a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user or a key fob of the vehicle. In one embodiment, the received user input corresponds to a specific vehicle function as to the vehicle. For example, the user input may comprise of a “vehicle lock/ unlock” function performed at the vehicle. In another example, the user input may be a user using a turn signal indicator button to indicate a turn signal to turn to a particular direction. In another example, the user may perform a “find me” action using his mobile device. In another example, the user may specify a light sequence for a “find me” action on the vehicle cluster. The user input may be received via the vehicle cluster or via the standard wireless protocol or via standard LIN connection between the vehicle buttons and electronically transmitted to the Vehicle Control Unit 120. The Vehicle Control Unit 120 may transmit the received user input to the light control system 150 via the CAN transceiver 252 or via the LIN transceiver 251. Based on the received input, light control system 150 performs specific actions as requested by the user.
[059] At step 320, the light control system 150 determines the state of the vehicle. In one embodiment, light control system 150 determines certain operating parameters. In one embodiment, the vehicle parameters such as speed of the vehicle, the turn angle are received from the VCU 120 and based on the certain operating parameters, certain actions are performed.
[060] At step 330, the light control system 150 may control lighting elements 260a-260e, 130a, 130b based on at least one of the received vehicle state or user input. In one embodiment, based on the received vehicle state, the headlamps 260a-260e are controlled. The brightness of the headlamps 260a-260e are controlled based on the speed of the vehicle. For example, brightness of the headlamps 260a-260e are increased if the speed of the vehicle is more than 60kmph.
[061] In another embodiment, the light control system 150 may control lighting elements based on the user input. In one embodiment, the user input may be received from one or more buttons present in the vehicle or the vehicle cluster or via a mobile application in a mobile device or a key fob of the vehicle. Based on the user input, one or more lighting elements 130a, 130b 260a-260e may be activated/deactivated. In one embodiment, a user may store a specific pattern of activating/deactivating lighting elements 130a, 130b 260a-260e based on a specific vehicle action. Based on the vehicle action triggered by the user, a specific pattern of lighting elements 130a, 130b 260a-260e may be activated/deactivated in a specific pattern.
[062] Figures 3B and 3C illustrate the manner in which light control system 150 activates/deactivates the headlamps 260a-260e and turn signal lamps 130a, 130b of the plurality of lighting elements 260a-260e, 130a, 130b based on the state of the vehicle.
[063] Figure 3B illustrates a manner in which light control system 150 operates headlamps 260a-260e of the vehicle based on operating parameters received from the vehicle control unit 120. At step 312, the headlamp switch status is checked as to whether the user has activated the switch to operate the headlamps 260a-260e in high beam. If the headlamp switch is switched on in high beam, a signal via a LIN bus is transmitted to the Vehicle Control Unit 120, then the Vehicle Control Unit 120 transmits the headlamp switch status to the light control system 150. At step 322, the vehicle status is determined. In one embodiment, the vehicle state requires the speed of the vehicle to be determined. In one embodiment, light control system 150 receives the current speed of the vehicle from the vehicle control unit 120. At step 330, the light control system 150, based on the current speed of the vehicle controls the brightness of the headlamps 260a-260e.The brightness of the headlamps 260a-260e is increased/decreased based on the speed of the vehicle. In one embodiment, if the headlamp switch status is ON as to high beam and speed of the vehicle is more than 60kmph, the light control system 150 activates the headlamps 260a-260e in high beam along with the increased brightness of the headlamps 260a-260e by controlling the pulse width modulation signal to the LED drivers 256-258 to control the brightness of the headlamps 260a-260e.
[064] Figure 3C illustrates a manner in which light control system 150 operates turn signal lamps 130a and 130b of the vehicle based on operating parameters. At step 314, a check as to the turn signal lamps 130a, 130b is performed. If the turn signal lamps 130a, 130b are ON, no action is performed. At step 324, light control system 150 checks the status of the switch controlling the turn signal lamps 130a, 130b. light control system 150 also checks the input received from the Inertial measurement unit (IMU) sensor as to the roll angle is performed. In one embodiment, the light control system 150 receives the roll angle data from the Vehicle Control Unit (VCU) 120 via a CAN transceiver 232. If the switch is ON, a signal via a LIN bus is transmitted to the VCU 120, then the VCU 120 transmits the turn lamp switch status to the light control system 150. Based on the switch direction, either of the turn signal lamps 130a, 130b is activated. If the roll angle is more than 5 degrees as to the roll angle in either of the directions, turn signal lamp 130a or turn signal lamp 130b is activated.
[065] Figures 4A-4C illustrate an embodiment of the invention that light control system 150 performs when the user action specifies a specific pattern of activating/deactivating the lighting elements 260a-260e, 130a and 130b based on a specific vehicle action. For example, a user of the vehicle is allowed to customize the activation and deactivation of the lighting elements 260a-260e, 130a and 130b for specific vehicle actions. A vehicle action is an action that is inherent to the operation of the vehicle. For example, key lock/key unlock are vehicle actions. The actions performed by the light control system 150 when a key lock/ key unlock actions are performed by the user.
[066] The manner in which the plurality of lighting elements 260a-260e, 130a and 130b are activated and deactivated is explained with respect to the flow chart of Figure 4A as to “Key Lock/Key unlock” action. At step 410, a key lock/key unlock action is performed. In one embodiment, the action may be performed using the key-fob or a mobile device of a user using a specialized application program on the mobile device. On performing the “key lock/key unlock” action, a signal indicating the same is transmitted to the light control system 150 from the vehicle control unit 120. The signal may be transmitted via the CAN interface via the CAN transceiver 252 to the control unit 255. At step 420, based on the action, the Vehicle Control Unit 120 transmits a signal to the light control system 150 as to the specific action (key lock/ key unlock) performed. At step 430, the light control system 150 retrieves a stored liked input associated with the key lock/ key unlock action with the headlamps 260a-260e activates and deactivates the headlamps for a specified period. At step 440, the light control system 150 retrieves a stored liked input associated with the key lock/ key unlock action with the turn signal lamps 130a, 130b and activates and deactivates the turn signal lamps 130a, 130b for a specified period.
[067] In one embodiment, user input for activating and deactivating headlamps 260a-260e and turn signal lamps 130a, 130b for a specific period may be input on the vehicle cluster or on the mobile device for key lock action and/or key unlock action. In one embodiment, the pattern may be provided for a specific period along with an order of activating the lighting elements 260a-260e turn signal lamps 130a, 130b along with a music tune that may be provided to the user.
[068] Figure 4B illustrates an example of a key lock action / a key unlock action for headlamps 260a-260e wherein a linked input has been stored and the light control system 150 retrieves the pattern and illuminates the headlamps 260a-260e according to the stored linked input. At step 430a, the LEDs in the headlamps 260a-260b are designated for “Always On” and are activated and deactivated for a specific period. At step 430aa, all the LEDs in the headlamp assembly 260a-e are activated and then deactivated for a specific period.
[069] Figure 4C illustrates an example of a key lock action / a key unlock action for turn signal lamps 130a, 130b wherein a linked input has been stored and the light control system 150 retrieves the stored linked input and illuminates the turn signal lamps 130a, 130b according to the stored pattern. At step 430b, the LEDs in the turn signal lamps 130a and 130b are enabled in a specific order. The lowermost LEDs in turn signal lamp 130a are activated and deactivated and then sequentially the LEDs are turned off. At step 430bb, the bottom LEDs in the turn signal lamps 130a and 130b are activated/deactivated according to the linked input.
[070] Accordingly, the light control system 150 enables activation and deactivation of the lighting elements 260a-260e, 130a, 130b based on a stored linked input for a “key lock/key unlock” action. Some of the other vehicle actions and the operation of the light control system 150 for these vehicle actions are explained with respect to figures 5 and 6 below.
[071] Figures 5 and 6 illustrate specific user actions that activate the headlamps 260a-260e, and the turn signal lamps 130a, 130b for vehicle actions such as “Find me” or “Follow me / Park assist” actions. In each of these vehicle actions, the light control system 150 may store a pattern for activating/deactivating a plurality of lighting elements 260a-260e, 130a, 130b in a sequence for a pre-determined period. In one embodiment, the light control system 150 may receive a user input as to activating/deactivating a plurality of lighting elements in a sequence for a pre-determined period and then the received user input may be linked to a specific vehicle action. Then the user input corresponding to the vehicle action is stored by the light control system 150. Once the vehicle action is triggered by the user, the light control system 150 retrieves the stored user input and activates/deactivates plurality of lighting elements based on the stored user input.
[072] Figure 5 illustrates a “Find me” sequence communication in accordance with an embodiment of the invention. At step 510, a user initiates a “Find me” action. The Vehicle Control Unit (VCU) 120 initiates the sequence to find the parked vehicle. In one embodiment, the “Find me” sequence is initiated by the user by activating a button on a key fob or a physical key or on a mobile device in communication with the vehicle. The VCU 120 receives the “find me” request and initiates the process for the “Find me” sequence. At step 520, the communication from VCU 120 through the CAN transceiver 252 is received at the light control system 150. At step 530, the light control system 150 checks for a specific pattern for activation/deactivation of lighting elements 260a-e, 130a, 130b for a “Find me” action. If there are any linked input is stored, then the light control system 150 retrieves the linked input. The light control system 150 translates the stored linked input to activate/ deactivate specific LEDs in the headlamp 260a-260e and turn signal lamps 130a, 130b through the LIN interface. In a preferred embodiment, the headlamp 260a-260e and turn signal lamps 130a, 130b are programmed to turn on and off with 350ms four times, thereby providing a clear visual indication of the vehicle parked.
[073] Figure 6 shows a “Follow me / Park assist” sequence communication in accordance with an embodiment of the invention. At step 610, the Vehicle Control Unit (VCU) 120 initiates the “follow me/ park assist” by sending the relevant instructions to the light control system 150. At step 620, the “follow me/park assist” is initiated by receiving communications from the VCU 120 through the CAN transceiver 252 at the light control system 150. At step 630, the light control system 150 checks for a specific pattern for activation/deactivation of lighting elements 260a-e, 130a, 130b for a “Follow me/ Parking assist” action. If there are any linked input is stored, then the light control system 150 retrieves the linked input and activates and deactivates headlamp 260a-260e and turn signal lamps 130a, 130b through the LIN interface for a specific period.
[074] In an embodiment the “key lock/unlock,” find me, park assists sequences of activating and deactivating headlamp 260a-260e and turn signal lamps 130a, 130b are configured by the user according to their preferences using an application on their electronic devices such as mobile phones or tablet computers and/or computing devices. The user chosen input is communicated to the Vehicle Control Unit (VCU) 120 or the cluster using the over-the-air process and linked to the vehicle action. The cluster interfaces with the app’s customization settings and prepares to apply the chosen lighting sequence for headlamp 260a-260e and turn signal lamps 130a, 130b. The cluster which is equipped with a display matrix enables the user interface for choosing which lighting components to enable and for how long to enable as well as the synchronization of music. This allows users to visually confirm and adjust their choices. The cluster communicates the chosen lighting sequences, duration, and music synchronization settings to the light control system 150 through CAN bus and then via the CAN transceiver 252.
[075] In another embodiment the key lock, find me, park assists sequences are configured by the user by directly selecting from the cluster using the switches. The cluster communicates the customized sequence to the Light Control System 150 through CAN bus. The light control system 150 receives the customized lighting sequence through the CAN transceiver 252. The CAN transceiver 252 acts as an interface between the physical CAN network and the light control system 150. The light control system 150 processes the received data, determines the desired lighting sequences, and then instructs the light control system 150 to enable the headlamp lighting. In an embodiment, the light control system 150 employs LIN communication to enable the Turn Signal Lights (TSL) 130a, 130b and the headlamps 260a-260e based on the sequence provided by the cluster.
[076] Figure 7 shows a flow diagram of the light control system operating the plurality of lighting elements during a course of vehicle operation by a user in accordance with an embodiment of the invention. During a course of use of the vehicle by a user, the light control system 150 has to perform activation/deactivation of lighting elements 260a-260e, 130a, 130b based on a user input liked to a vehicle action as well as activation/deactivation of lighting elements 260a-260e, 130a, 130b based on the state of the vehicle.
[077] At step 710, the user initiates the vehicle action of “key unlock” that may be performed using a mobile device linked to the vehicle or via a key fob.
[078] At step 720 and 725, if the user has specified a pattern for activation/deactivation of lighting elements 260a-260e, 130a, 130b based on a user input liked to “key unlock” action, the linked input is retrieved. At step 730, the activation/deactivation of lighting elements 260a-260e is performed along with activation/deactivation of lighting elements 130a, 130b, if any. Once the vehicle is started, then the LEDs (headlamps) designated as “Always Headlamp ON” in headlamps 260a-260e is activated. At step 740, the light control system 150 receives an input as to the switching on of the high beam lamp of the headlamps 260a-260e. If the switch for high beam lamp is ON, all the headlamp LEDs 260a-260e are activated. It may be understood that the brightness of the headlamps 260a-260e are controlled based on the speed of the vehicle and based on the speed the brightness of the headlamps 260a-260e may be varied based on the flow diagram of Figure 3B.
[079] In an example, if the speed of the vehicle crosses a speed of 60kmph, then the brightness of the headlamps 260a-260e are increased by controlling the MOSFET circuit of the light control system 150. If the speed of the vehicle reduces below 60 kmph, the brightness of the headlamps 260a-260e are decreased gradually such that the user of the vehicle is able to adjust to the change in the brightness of the headlamps 260a-260e.
[080] In another embodiment, the user controls the brightness of the headlamps 260a-260e based on his/her requirements. Once the brightness of the headlamps 260a-260e is at the highest level, the light control system 150 intimates the same to the user of the vehicle and enables the user to retain the current level of brightness of the headlamps 260a-260e or allow the light control system 150 to automatically adjust the brightness of the headlamps 260a-260e. In an embodiment, the user controls the brightness of the headlamps 260a-260e as to handle difficult terrain in the route or for driving in poorly-lit road condition.
[081] In parallel, the vehicle control unit 120 checks the Inertial measurement unit (IMU) signal along with the roll angle of the vehicle. If the vehicle control unit 120 determines that the roll angle is more than 5 degrees in either left or right direction, then the vehicle control unit 120 sends a signal to the light control unit 150 to activate the turn signal lamps 130a, 130b based on the roll angle. At step 725a, the roll angle of the vehicle is more than 5 degrees in the “left” direction and accordingly, the left turn signal lamp 130a is activated. At step 725b, the roll angle of the vehicle is more than 5 degrees in the “right” direction and accordingly, the right turn signal lamp 130a is activated.
[082] Accordingly, during the operation of the vehicle, the light control system 150 effectively functions to manage all the lighting related functions thereby reducing the load on the vehicle control unit 120.
[083] The manner in which a user provides input on a vehicle cluster as to activation and deactivation of lighting elements 260a-260e, 130a, 130b is explained with respect to an example user interface of Figure 8.
[084] Figure 8 illustrates an example user interface being displayed on an instrument cluster of the vehicle that may be used for customizing the pattern for illumination of the one or more lighting elements 260a-260e, 130a, 130b of the vehicle. In an embodiment, the user may select “General” tab (element 820a) on the vehicle cluster Graphical User Interface, then access the “Vehicle Settings” (element 820b), and then select the “Light sequence” element 820c, to see the input portion 820d for providing a pattern for the lighting elements 260a-260e, 130a, 130b. The user may use the “Preview” button 820d to visually see how the selected pattern may be rendered.
[085] In an embodiment, the user may select at least one of a pattern from the “Light sequence” element 820c to provide input for enabling the one or more lamps of the vehicle. In an embodiment the pattern may be one of: clockwise, anticlockwise, rear to front, front to rear, and a custom pattern. In a custom pattern, the user may be provided with a 3 x 3 grid pattern to define the custom lighting pattern of the vehicle.
[086] The instrument cluster, equipped with a display matrix, enables the user interface for choosing which lighting components to enable, and for how long, as well as the synchronization of music. This allows users to visually confirm and adjust their choices. Thus, the instrument cluster, via CAN communication, communicates the chosen lighting sequence, duration, and music synchronization settings to the light control system 150. The light control system 150 receives the settings through its CAN transceiver 252. The light control system 150 then activates the headlamp 260a-260e lighting as per the customized sequence. Each of these headlamps 260a-260e and the turn signal lamps 130a, 130b are connected via LIN communication bus according to the option chosen by the user.
[087] In a preferred embodiment, if the user has chosen to activate the “clockwise” mode of switching on the lamps, the headlamps 260a-260e, turn signal lamp 230 present in the right side of the vehicle is activated followed by the headlamp 260a-260e, turn signal lamp 230 present in the left side of the vehicle and then proceeding to end in lighting up the headlamps 260a-260e. When the user chooses the said option of “clockwise lighting,” the instrument cluster, equipped with a display matrix, displays the specific order of the lighting components that are activated and the specific music to be played. If the user wishes to change any order of lighting or the specific order as to the choice, the user is allowed to adjust their choices. Thus, the instrument cluster, via CAN communication, communicates the chosen lighting sequence, duration, and music synchronization settings to the light control system 150. The light control system 150 receives the settings through its CAN transceiver 252. The light control system 150 then triggers the headlamps 260a-260e as per the sequence.
[088] When the user chooses the said option of “anticlockwise lighting,” the instrument cluster, equipped with a display matrix, displays the specific order of the lighting components that are activated and the specific music to be played. If the user wishes to change any order of lighting or the specific order as to the specific sequence, the user is allowed to adjust their choices. Thus, the instrument cluster, via CAN communication, communicates the chosen lighting sequence, duration, and music synchronization settings to the light control system 150. The light control system 150 receives the settings through its CAN transceiver 252. The light control system 150 then activates the headlamp lighting as per the sequence.
[089] When the user chooses the said option of “Rear to Front” and/or “Front to Rear,” the instrument cluster, equipped with a display matrix, displays the specific order of the lighting components that are activated and the specific music to be played. Thus, the instrument cluster, via CAN communication, communicates the chosen lighting sequence, duration, and music synchronization settings to the light control system 150. The light control system 150 receives the settings through its CAN transceiver 252. The light control system 150 then activates the headlamp lighting as per the sequence.
[090] In one embodiment of the vehicle the sequences can be customized according to specific needs or aesthetic preferences. The customization can be done manually by directly selecting from the cluster using the switches, the cluster communicates this customized sequence to the light control system 150 via CAN communication.
[091] Once a personalized pattern is programmed, users have the capability to associate it with any of the predefined activities of the vehicle. This means that the customized lighting sequence, along with the chosen music, can be allocated to various pre-defined scenarios or activities within the vehicle. In a preferred embodiment, the timing/duration to switch on the specific set of lamps or the specific LED lamp can be customized as to the time of switching on and switching off. For example, headlamp 260a in the headlamp can be switched on for x seconds, along with headlamp 260b for y seconds and the turn signal lamps 130a, 130b for z seconds.
[092] As illustrated above, specific patterns of illumination and accompanying musical tones can be designated to activate in response to different vehicle conditions, such as riding condition, stand by condition, ISS stop mode and the like. As an illustration, if the side stand of the vehicle is left open, a designated set of vehicle lights could be programmed to illuminate in a particular sequence, synchronized with a specific musical arrangement. The present disclosure enables users to tailor these patterns according to their preferences and convenience. By linking specific patterns of light and sound to specific vehicle states or circumstances, this embodiment enriches the overall vehicle experience, offering a dynamic blend of aesthetics, functionality, and personalization that adapts to the ever-changing conditions and moods of the vehicle and its users.
[093] In another embodiment of the vehicle the sequences can be customized according to specific needs or aesthetic preferences by using an application installed on a personalized electronic device such as a mobile phone, tablet, laptop etc., where the application empowers users to customize multiple lighting elements such as headlights, taillights, indicators, interior lights, etc. of the vehicle. The user’s chosen customization is communicated to the In-Vehicle Control Unit (VCU) or the cluster using the Over the Air process. The cluster interfaces with the application’s customization settings and prepares to apply the chosen lighting sequence.
[094] In yet another embodiment of the vehicle, different family members can create different profiles, and the different profiles may have different personalization options for lighting to tailor their vehicle's lighting and audio experience to their preferences.
[095] In one of the embodiments of the present invention, the functionality is centered around the storage of predefined patterns of light and music within the vehicle's memory. These pre-established patterns encompass specific arrangements of illuminations and corresponding musical compositions. Users are then granted the ability to exclusively allocate these pre-defined patterns of light and music to certain predetermined activities. This embodiment streamlines the customization process by limiting user assignments to the available pre-set options. Instead of creating entirely new patterns, users select from a curated selection of pre-existing combinations.
[096] The customization options are accessible exclusively when the vehicle is in a stationary or standstill condition. More specifically, when the vehicle is in a running condition or in motion, the user's ability to customize lighting patterns or select music is temporarily disabled.
[097] In one of the embodiments of the present invention, if the vehicle is running energy saving mode, the system automatically transitions into a default mode of operation. During this default mode, any customization settings that the user may have configured for the lighting and music will be temporarily disabled.
[098] In one of the embodiments of the present invention, users are provided with a range of customization options to tailor their vehicle's lighting and audio experience to their preferences. This customization is achieved through a set of inputs provided to the user, encompassing key parameters for personalization. These inputs include duration of LED illumination, choice of music, and the pattern in which the LEDs will illuminate.
[099] Further, users, leveraging the control interface of the vehicle's cluster, can engage in a creative process to design and configure unique lighting sequences. These sequences can be customized according to specific needs or aesthetic preferences. Once a personalized pattern is crafted, users have the capability to associate it with any of the predefined activities of the vehicle. This means that the customized lighting sequence, along with the chosen music, can be allocated to various pre-defined scenarios or activities within the vehicle.
[0100] By linking specific patterns of light and sound to specific vehicle states or circumstances, this embodiment enriches the overall vehicle experience, offering a dynamic blend of aesthetics, functionality, and personalization that adapts to the ever-changing conditions and moods of the vehicle and its users.
[0101] In one of the embodiments of the present invention, the same light control system 150 can be used in different vehicles. Accordingly, this will help Original Equipment Manufacturers (OEM)s to bring modularity. In one of the embodiments of the present invention, lighting patterns could be synchronized with vehicle maneuvers, improving visibility and compliance with road regulations.
[0102] Advantageously, the centralized control allows for shorter wire connections from the light control system 150 to each lighting unit 260a-260e and 130a, 130b reducing the overall length of wiring required throughout the vehicle. Further, vehicle control unit 120 will not be required to control the functionality of the lights, accordingly, dependency on vehicle control unit 120 for controlling light is reduced. The system is provided wherein the communication system is optimized for high efficiency and low cost using a combination of CAN and LIN bus networks. The present invention proposes to reduce the number of wires and simplify the entire system, leading to reduced cost and simplification.
[0103] The present invention discloses a solution where the Controller Area Network (CAN) and Local Interconnect Network (LIN) bus networks are working in conjunction to operate multiple lighting elements of the vehicle and optimizing the communication infrastructure, enabling seamless and economical control over the sequential LED sequences. Accordingly, the functionality, safety, and visual appeal of vehicles could be significantly enhanced, all while managing the associated manufacturing expenses.
[0104] The light control system 150 comprises a dedicated TSL (Turn Signal Light) driver 258 which facilitates enhanced control over lighting elements. Further, incorporation of switches within the light control system 150 creates a streamlined control mechanism for headlamp assembly 260a-d. The dedicated TSL driver 258 of light control system 150 would manage the light control system’s 150 communication through the Local Interconnect Network (LIN) protocol, thereby ensuring synchronized and sequential glowing of TSLs. This systematic approach empowers the light control system 150 to communicate intricate patterns to the TSL 130a, 130b enhancing vehicle aesthetics and safety.
[0105] Further, using LIN communication, switches can be integrated, flowing seamlessly from the LIN network to the light control system 150, then extending to the cluster, leading to a cluster that can be HMI (Human-Machine Interface) based control system. This will reduce the number of wires required as well as the space required for the wires. Accordingly, using the present invention vehicle lighting systems can be transformed, offering users a customizable, dynamic, and cost-effective sequential LED experience that enhances both functionality and visual appeal.
[0106] The instrument cluster serves as a central hub for customizing and controlling the lighting experience, while the light control system 150 translates these configurations into actionable commands for the lighting components, ensuring a dynamic and user-tailored lighting environment within the vehicle. The over the air update process enhances this functionality by allowing users to remotely modify and update their lighting preferences. Further, multiple lightning patterns along with the music and time duration can be customized using the above-mentioned cases.
[0107] The light control system 150 as described earlier can contribute to reducing wire length through efficient communication protocols and localized control. In the traditional wiring systems, longer wire lengths are often required to connect various components, leading to increased complexity, potential signal degradation, and greater chances of errors. More specifically, the use of Controller Area Network (CAN) and Local Interconnect Network (LIN) communication protocols enables efficient data exchange between components. CAN is particularly effective for high-speed, robust communication, while LIN is suited for less critical applications. By transmitting commands and data through these networks, the need for dedicated long wires between components is reduced, as data can be shared over the network.
[0108] The light control system 150 serves as a central hub that processes commands and distributes them to various lighting components. This centralized control allows for shorter wire connections from the light control system 150 to each lighting unit, reducing the overall length of wiring required throughout the vehicle. Further, vehicle control unit 120 will not be required to control the functionality of the lights, accordingly, dependency of vehicle on the vehicle control unit 120 for controlling light is reduced. In one of the embodiments of the present invention light control system 150 is placed in front of the vehicle such as the same is air cooled naturally. Further, in comparison to vehicle control unit 120 the cost of light control system 150 is quite economical and in case of any failure light control system 150 is economical and easy to replace.
[0109] The instrument cluster acts as the user interface and control center for customizing lighting sequences. It communicates with the light control system 150 via CAN communication to convey user preferences. This eliminates the need for extensive wiring between the user interface and the control module, as communication occurs digitally through the network.
[0110] In one of the embodiments of the present invention, in the event of any malfunction in the system, the light control system 150 is promptly informed due to the streamlined communication structure of the LIN protocol. Further, the combined use of both LIN and CAN communication proves to be instrumental in diagnosing the lighting system's health and identifying any issues that might arise. Accordingly, the vehicle's lighting system benefits from enhanced reliability, faster detection of failures, and a sophisticated diagnostic mechanism. This not only contributes to improved vehicle safety but also streamlines maintenance procedures, ensuring that potential lighting-related problems are promptly addressed, thus bolstering the overall performance and longevity of the lighting system. Furthermore, this will also reduce the service time of the vehicle in case of any failure in the system.
[0111] Furthermore, one or more computer-readable storage media may be utilized in implementing embodiments consistent with the present disclosure. A computer-readable storage medium refers to any type of physical memory on which information or data readable by a processor may be stored. Thus, a computer-readable storage medium may store instructions for execution by one or more processors, including instructions for causing the processor(s) to perform steps or stages consistent with the embodiments described herein. The term “computer-readable storage medium” should be understood to include tangible items and exclude carrier waves and transient signals, i.e., be non-transitory. Examples include random access memory (RAM), read-only memory (ROM), volatile memory, non-volatile memory, hard drives, CD ROMs, DVDs, flash drives, disks, and any other known physical storage media.”
[0112] The foregoing description of the invention has been set merely to illustrate the invention and is not intended to be limiting. Since the modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to the person skilled in the art, the invention should be construed to include everything within the scope of the disclosure.

Reference numeral lists
110: Power source
120: Vehicle control unit (VCU)
130a, 130b: Auxiliary lamps (Turn Signal lamps)
150: Light Control System
160: Headlamp
140: LIN channel Interface
210: DC-DC power source (corresponds to the power source 110)
130a, 130b: Turn signal lamps
251: LIN Transceiver
252: CAN Transceiver
253: Buck Converter
254: EMI/EMC Filter
255: Control Unit
256-258: Dual Buck LED drivers
259: MOSFET
260a-260e: Headlamp LEDs
310-330: Method steps
312-330: Method steps
314-330: Method steps
410-440: Method steps
430a-430aa: Method steps
430b-430bb: Method steps
510-530: Method steps
610-630: Method steps
710-750: Method steps
820a-820e: User interface elements
,CLAIMS:WE CLAIM:

1. A light control system (250) for a vehicle, comprising:
a control unit (255) configured to:
receive, from a user, an input as to control of a plurality of lighting elements (260a-260e, 130a, 130b) in the vehicle;
determine a state of the vehicle;
control the plurality of lighting elements (260a-260e, 130a, 130b) based on at least one of the received input from the user and the state of the vehicle.

2. The light control system (250) as claimed in claim 1, wherein the control unit (255) being configured to determine the state of the vehicle based on a one or more operating parameters received from a vehicle control unit (220), wherein the one or more operating parameters comprises a speed of the vehicle, a roll angle of the vehicle and a state of charge of the vehicle.

3. The light control system (250) as claimed in claim 1, wherein the control unit (255) being configured to:
receive the input from the user from at least one of a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user, wherein the input from the user is routed to the control unit (255) via at least one of a LIN bus and a CAN bus.

4. The light control system (250) as claimed in claim 3, wherein the control unit (255) being configured to:
receive the input from the user, wherein the received input from the user is indicative of at least one of activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) in a sequence for a pre-determined period of time;
link the received input from the user to a vehicle action; and
store the linked user input corresponding to the vehicle action.

5. The light control system (250) as claimed in claim 4, wherein the control unit (255) receives input as to the vehicle action, being configured to:
retrieve the stored linked input corresponding to the vehicle action; and
activate and deactivate the plurality of lighting elements (260a-260e, 130a, 130b) based on the stored linked input.

6. The light control system (250) as claimed in claim 1, wherein the control unit (255), being configured to:
adjust brightness of one or more headlamps (260a-260e) of the plurality of the lighting elements based on one or more operating parameters; and
selectively activate a turn signal lamp (130a, 130b) of the plurality of the lighting elements at a specific side of the vehicle based on one or more operating parameters.

7. The light control system (250) as claimed in claim 6, wherein the control unit (255), being configured to:
adjust a brightness of one or more headlamps (260a-260e) of the plurality of the lighting elements (260a-260e, 130a,130b) based on the speed of the vehicle; and
selectively activate a turn signal lamp (230a, 230b) of the plurality of the lighting elements at a specific side of the vehicle based on the roll angle of the vehicle.

8. The light control system (250) as claimed in claim 4, wherein the control unit (255) is configured to:
enable the at least one of the vehicle cluster or from the plurality of buttons present on the vehicle to receive an input for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action when the speed of the vehicle is lower than a predetermined speed threshold; and
disable the at least one of a vehicle cluster or from a plurality of buttons present on the vehicle for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action when the speed of the vehicle is greater than the predetermined speed threshold.

9. The light control system (250) as claimed in claim 4, wherein the control unit (255) is configured to operate the plurality of lighting elements (260a-260e, 130a, 130b) in a default mode when the state of charge of the vehicle is less than a predetermined threshold and stored linked input corresponding to the vehicle action is not activated.

10. A method of controlling lighting elements in a vehicle, the method comprising:
receiving (310), by a control unit (255), from a user, an input as to control of plurality of lighting elements (260a-260e, 130a, 130b) in the vehicle;
determining (320), by the control unit (255), a state of the vehicle; and
controlling (330), by the control unit (255), the plurality of lighting elements (260a-260e, 130a, 130b) based on at least one of received input from the user and the state of the vehicle.

11. The method as claimed in claim 10, wherein the input as to controlling the plurality of lighting elements (260a-260e, 130a, 130b) is received from at least one of a vehicle cluster or from a plurality of buttons present on the vehicle or a mobile device of the user, wherein the input from the user is routed to the control unit (255) via at least one of a LIN bus and a CAN bus.

12. The method as claimed in claim 10, wherein the state of the vehicle is determined based on a one or more operating parameters received from a vehicle control unit (120), wherein the one or more operating parameters comprises a speed of the vehicle, a roll angle of the vehicle and a state of charge of the vehicle.

13. The method as claimed in claim 11, comprises:
receiving the input from the user, wherein the received input from the user is indicative of at least one of activation and deactivation of a plurality of lighting elements (260a-e, 130a, 130b) in a sequence for a pre-determined period of time;
linking the received input from the user to a vehicle action; and
storing the linked input corresponding to the vehicle action.

14. The method as claimed in claim 13, wherein on received input from the user as to the vehicle action, comprises:
retrieving the stored linked input corresponding to the vehicle action; and
activating and deactivating the plurality of lighting elements (260a-260e, 130a, 130b) based on the stored linked input.

15. The method as claimed in claim 10, wherein controlling the plurality of lighting elements (260a-260e, 130a, 130b) based on the state of the vehicle, comprises:
adjusting a brightness of one or more headlamps (260a-260d) of the plurality of the lighting elements (260a-260e, 130a, 130b) based on the speed of the vehicle; and
selectively activating a turn signal lamp (130a, 130b) of the plurality of the lighting elements (260a-260e, 130a, 130b) at a specific side of the vehicle based on the roll angle of the vehicle.

16. The method as claimed in claim 11, wherein determining (320), by the control unit (255), a state of the vehicle, comprises:
enabling the at least one of the vehicle cluster or from the plurality of buttons present on the vehicle to receive an input for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action when the speed of the vehicle is lower than a predetermined speed threshold; and
disabling the at least one of a vehicle cluster or from a plurality of buttons present on the vehicle for the activation and deactivation of the plurality of lighting elements (260a-260e, 130a, 130b) for linking as to the vehicle action when the speed of the vehicle is greater than the predetermined speed threshold.

17. The method as claimed in claim 15, wherein on determining (320), by the control unit (255), the state of charge is lesser than a predetermined threshold, comprises:
operating the plurality of lightning elements (260a-260e, 130a, 130b) in a default mode; and
deactivating the stored linked input as to the vehicle action.

Dated this 22nd day of August 2023
TVS MOTOR COMPANY LIMITED
By their Agent & Attorney

(Nikhil Ranjan)
of Khaitan & Co
Reg No IN/PA-1471