Description:FIELD OF THE INVENTION
[001] The present invention relates to a System for Controlling a Turn Signal Lamp in a Vehicle and Method Thereof.

BACKGROUND OF THE INVENTION
[002] In vehicles, various lamps perform illumination function to easily identify objects at certain proximity of the vehicle surrounding at night. These lamps also indicate a state of the vehicle to drivers of other vehicles and pedestrians. A Turn Signal Lamp (TSL) is one of such lamps used to indicate the state of the vehicle to the drivers of other vehicles and the pedestrians. The TSLs are installed at front and rear of the vehicle. These TSLs are in operation mode when a rider provides signal indicating a turning of the vehicle or changing a lane to let other vehicles take notice of that.
[003] To make the turn signal lamp recognize the change more intuitively for another vehicle, a controlled sequential pattern is needed. Such controlled sequential patterns can be incorporated by adding certain circuits to the vehicle. However, adding such circuit in each TSL will increase cost and the same circuit cannot be used for vehicles with different power requirements. Hence, there is a lack of modularity.
[004] Further, blinking of TSLs in controlled sequential pattern not only adds to a better safety perspective but also adds to styling and aesthetics of the vehicle. Also, these days customer like to have a unique product and the blinking of TSLs in a controlled sequential pattern contributes in becoming a major product differentiator. Hence, there is a need of TSL whose blinking pattern can be controlled as per rider’s choice. There is also a need for a better circuit arrangement for achieving the controlled blinking pattern which has low cost architecture with reduced number of pins. Also, there is a need of a TSL which can be customized as per requirement of customer.
[005] Thus, there is a need in the art for a system for controlling a turn signal lamp in a vehicle which addresses at least the aforementioned problems.

SUMMARY OF THE INVENTION
[006] In one aspect, the present invention is directed towards a system for controlling a Turn Signal Lamp (TSL) in a vehicle. The system has at least one pair of TSL mounted on the vehicle. The at least one pair of TSL having one or more light emitting diodes (LEDs). The system has a first control unit for operating the at least one pair of TSL. The first control unit detects a fault condition in operation of the one or more LEDs. Further, the system has a Vehicle Control Unit (VCU) which is communicatively coupled to the first control unit. The VCU selects the at least one pair of TSL. The VCU communicates with the first control unit about the selection of the at least one pair of TSL. The VCU communicates with the first control unit to operate the one or more LEDs of the at least one pair of TSL. Further, the VCU receives the fault condition from the first control unit of the one or more LEDs and switches OFF the at least one pair of TSL if the fault condition is detected in any of the LEDs.
[007] In an embodiment of the invention, a Local Interconnect Network (LIN) bus establishes communication between the first control unit and the VCU. The first control unit receives a Local Interconnect Network Identification (LIN ID) from the VCU via the LIN bus. The first control unit compares the received LIN ID with a designated LIN ID of the first control unit. If the received LIN ID is not equal to the designated LIN ID, the first control unit remains in an Idle mode. If the received LIN ID is equal to the designated LIN ID, the VCU communicates with the first control unit to operate the one or more LEDs of the at least one pair of TSL by selecting a predefined pattern of blinking of the one or more LEDs.
[008] In a further embodiment of the invention, the VCU selects the predefined pattern of blinking of the one or more LEDs by reading a Bit frame and selecting the predefined pattern linked to the Bit frame for blinking of the one or more LEDs.
[009] In another embodiment of the invention, the first control unit detects the fault condition in the operation of the one or more LEDs by comparing a real time pattern of blinking of the one or more LEDs with the selected predefined pattern linked to the Bit frame for blinking of the one or more LEDs. The first control unit communicates to the VCU the fault condition by indicating a fault flag status. The fault flag status is 0, if the real time pattern is same as the selected predefined pattern. The fault flag status is 1, if the real time pattern is not same as the selected predefined pattern.
[010] In a further embodiment of the invention, if the fault flag status is 0, the VCU communicates with the first control unit to operate the one or more LEDs of the at least one pair of TSL by selecting a predefined pattern of blinking of the one or more LEDs. If the fault flag status is 1, the VCU switches OFF the at least one pair of TSL.
[011] In a further embodiment of the invention, the first control unit operates the at least one pair of TSL by using two high side switches by using a transistor biased with an op-amp for grounding of the consecutive LEDs with a low side current sink of the transistor biased with the op-amp.
[012] In a further embodiment of the invention, the first control unit includes an upper Printed Circuit Board (PCB) and a lower Printed Circuit Board (PCB). The upper PCB has control circuits and the lower PCB has filter circuits and power regulator circuits.
[013] In another aspect, the present invention is directed towards a method for controlling a Turn Signal Lamp (TSL) in a vehicle. The method includes the step of selecting by a Vehicle Control Unit (VCU) at least one pair of TSL. The method includes the step of communicating by the VCU with a first control unit about the selection of the at least one pair of TSL. The method includes the step of communicating by the vehicle control unit (VCU) with the first control unit to operate one or more Light Emitting Diodes (LEDs) of the at least one pair of TSL. The method includes the step of operating by the first control unit the at least one pair of TSL. The method includes the step of detecting by the first control unit a fault condition in the operation of the one or more LEDs. Further, the method includes the step of receiving the fault condition by the VCU from the first control unit of the one or more LEDs. The method includes the step of switching OFF by the VCU the at least one pair of TSL if the fault condition is detected in any of the LEDs.
[014] In a further embodiment of the invention, the method includes the step of establishing by a Local Interconnect Network (LIN) bus communication between the first control unit and the VCU. The method includes the step of receiving by the first control unit the Local Interconnect Network Identification (LIN ID) from the VCU via the LIN bus. Further, the method includes the step of comparing by the first control unit the received LIN ID with a designated LIN ID of the first control unit. The method includes the step of remaining by the first control unit in an Idle mode, if the received LIN ID is not equal to the designated LIN ID. The method includes the step of selecting by a Vehicle Control Unit (VCU) at least one pair of TSL. The method includes the step of selecting by the VCU a predefined pattern of blinking of the one or more LEDs if the received LIN ID is equal to the designated LIN ID. The method includes the step of communicating by the VCU with the first control unit the predefined pattern of blinking of the one or more LEDs to operate the one or more LEDs of the at least one pair of TSL.
[015] In a further embodiment of the invention, the method includes the step of selecting by the VCU the predefined pattern of blinking of the one or more LEDs by reading a Bit frame and selecting the predefined pattern linked to the Bit frame for blinking of the one or more LEDs. The method includes the step of communicating by the VCU with the first control unit the predefined pattern of blinking of the one or more LEDs to operate the one or more LEDs of the at least one pair of TSL.
[016] In an embodiment of the invention, the method includes the step of detecting by the first control unit the fault condition in the operation of the one or more LEDs by comparing a real time pattern of blinking of the one or more LEDs (240) with the selected predefined pattern linked to the Bit frame for blinking of the one or more LEDs. The method includes the step of communicating by the first control unit to the VCU the fault condition by indicating a fault flag status. The fault flag status is 0, if the real time pattern is same as the selected predefined pattern. The fault flag status is 1, if the real time pattern is not same as the selected predefined pattern.
[017] In a further embodiment of the invention, the method includes the step of communicating by the VCU with the first control unit the predefined pattern of blinking of the one or more LEDs to operate the one or more LEDs of the at least one pair of TSL, if the fault flag status is 0. If the fault flag status is 1, the VCU switches OFF the at least one pair of TSL.

BRIEF DESCRIPTION OF THE DRAWINGS
[018] 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.
Figure 1 illustrates a left-side view of an exemplary motor vehicle, in accordance with an embodiment of the invention.
Figure 2 illustrates a block diagram of a system for controlling a Turn Signal Lamp (TSL) in a vehicle, in accordance with an embodiment of the invention.
Figure 3 illustrates the block diagram of the system for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
Figure 4 illustrates a connection of TSL with a first control unit in the vehicle, in accordance with an embodiment of the invention.
Figure 5 illustrates a circuit diagram for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
Figure 6 illustrates a method for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
Figure 7 illustrates the method for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
Figure 8A illustrates the method for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
Figure 8B illustrates the method for controlling the Turn Signal Lamp (TSL) in the vehicle, in accordance with an embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[019] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder.
[020] The present invention relates to a Turn Signal Lamp (TSL) in a vehicle. More particularly, the present invention relates to a system for controlling a TSL in a vehicle. In the ensuing exemplary embodiments, the vehicle 100 is a motorcycle. However, it is contemplated that the disclosure in the present invention may be applied to any automobile like a scooter or any other saddle type vehicle capable of accommodating the present subject matter without defeating the scope of the present invention.
[021] Figure 1 illustrates a left side view of an exemplary vehicle 100, in accordance with an embodiment of the present invention. The vehicle 100 comprises a front wheel 112, a rear wheel 108, a frame structure (not shown) and a rider seat 102. The frame structure includes a head pipe, a main tube, a down tube, and a pair of seat rails. A headlamp 132 and an instrument cluster (not shown) are arranged on an upper portion of the head pipe. Further, the head pipe supports a steering shaft (not shown) disposed inside the head pipe. A front suspension 120 coupled to the steering shaft (not shown) is provided at a front of the vehicle 100, and the front wheel 112 is supported by the front suspension 120. An upper portion of the front wheel 112 is covered by a front fender 146 mounted to a lower portion of the front suspension 120. A handlebar 124 is operatively coupled to the steering shaft and can rotate about the head pipe for steering the vehicle 100.
[022] The vehicle 100 includes a prime mover that is adapted to provide motive force for movement of the vehicle 100. In an embodiment, the prime mover is an internal combustion engine 110. A fuel tank 142 is mounted on the main tube. An exhaust pipe (not shown) extends vertically downward from the internal combustion engine 110 and then extends below the internal combustion engine 110, longitudinally along length of the vehicle 100 before terminating in a muffler (not shown). The down tube is positioned in front of the internal combustion engine 110 and extends downward from the head pipe in a slanting manner. The main tube of the frame member is located above the internal combustion engine 110 and extends rearward from the head pipe. Seat rails are joined to the main tube and extend rearward to support the rider seat 102. A swingarm (not shown) is connected to the frame structure to swing vertically, and a rear wheel 108 is connected to a rear end (not shown) of the swingarm. The swingarm is coupled to the vehicle 100 by a rear suspension (not shown) at a position rearwardly of a pivot point of the swingarm on the frame structure of the vehicle 100.
[023] A grab rail 104 is also provided to the seat rails at a rear of the seat 102. The rear wheel 108 arranged below the rider seat 102 rotates by motive force generated by the internal combustion engine 110 transmitted through a transmission (not shown). A rear fender 148 is disposed above the rear wheel 108. A Turn Signal Light (TSL) 210 is disposed at a rear of the rider seat 102.
[024] Figure 2 illustrates a block diagram of a system 200 for controlling the TSL 210 in the vehicle 100. The system 200 has at least one pair of TSL 210 mounted on the vehicle 100. The at least one pair of TSL 210 has one or more light emitting diodes (LEDs) 240 (as shown in figure 3). Further, the system 200 has a first control unit 220 for operating the at least one pair of TSL 210. The system 200 also has a Vehicle Control Unit (VCU) 230 which is communicatively coupled to the first control unit 220. As shown in figure 3, the system 200 has a Local Interconnect Network (LIN) bus 250 to establish communication between the first control unit 220 and the VCU 230. In an embodiment, as shown in figure 4, the first control unit 220 has an upper Printed Circuit Board (PCB) 212 and a lower Printed Circuit Board (PCB) 214, wherein the upper PCB 212 has control circuits and the lower PCB 214 has filter circuits and power regulator circuits. The upper PCB 212 and the lower PCB 214 are placed in a PCB casing 216. The pair of TSL 210 and the first control unit 220 are connected to the power supply via a connector 218. The connector 218 also shares the LIN ID for establishing communication between the VCU 230 and the first control unit 220.
[025] The system starts and performs tasks in a loop when the first control unit 220 receives a Local Interconnect Network Identification (LIN ID) from the VCU 230 via the LIN bus 250. The first control unit 220 compares the received LIN ID with a designated LIN ID of the first control unit 220. If the received LIN ID is not equal to the designated LIN ID, the first control unit 220 remains in an Idle mode.
[026] But if the received LIN ID is equal to the designated LIN ID, then the VCU 230 communicates with the first control unit 220 to operate the one or more LEDs 240 of the at least one pair of TSL 210. The VCU 230 selects the at least one pair of TSL 210 as per rider’s instruction. Further, the VCU 230 communicates with the first control unit 220 to operate the one or more LEDs 240 of the at least one pair of TSL 210 by selecting a predefined pattern of blinking of the one or more LEDs 240. As shown in figure 5, the first control unit 220 operates the at least one pair of TSL 210 by using two high side switches 252 by using a transistor biased with an operational-amplifier for grounding of the consecutive LEDs 240 with a low side current sink of the transistor biased with the operational-amplifier. This circuit arrangement helps to reduce General Purpose Input/Output (GPIO)s 254 pins of the first control unit 220 from 2*NLED to NLED +1, which helps in selection of low cost microcontroller 268 unit. An LED current fed into an LED Array RH 242 and an LED Array LH 242 is regulated using an operational-amplifier reference voltage. The reference voltage is generated using a Pulse Width Modulator 256 and a low pass LC filter 258 to have a smooth wave. The LED control also has a hazard control 260 circuit which provides extra current to meet current demand. The circuit further includes a filtering circuit 264 to remove the noises from the input voltage received through the power supply 266. After filtering noises the input voltage is converted to operating voltage by a Low Dropout Voltage Regulator 262 and then fed to High side switches 252. Further in the circuit arrangement, the sensor resistor 272 provides feedback to the circuit. The system 200 takes input from the Analog to Digital Converter (ADC) 270 unit and the sensor resistor 272 to analyse the fault.
[027] As shown in figure 3, in an embodiment, the first control unit 220 processes the instruction to operate the one or more LEDs 240 of the at least one pair of TSL 210. In an embodiment, the VCU 230 selects the predefined pattern of blinking of the one or more LEDs 240 by reading a Bit frame and selecting the predefined pattern linked to the Bit frame for blinking of the one or more LEDs 240.
[028] Diagnosis of the fault in the operation one or more LEDs 240 is a regulatory requirement. In an embodiment, the first control unit 220 detects the fault condition in the operation of the one or more LEDs 240. The first control unit 220 compares a real time pattern of blinking of the one or more LEDs 240 with the selected predefined pattern linked to the Bit frame for blinking of the one or more LEDs 240. The first control unit 220 communicates to the VCU 230 the fault condition by indicating a fault flag status. The fault flag status is 0, if the real time pattern is same as the selected predefined pattern. The fault flag status is 1, if the real time pattern is not same as the selected predefined pattern. If the fault flag status is 0 then the VCU 230 communicates with the first control unit 220 to operate the one or more LEDs 240 of the at least one pair of TSL 210 by selecting a predefined pattern of blinking of the one or more LEDs 240. If the fault flag status is 1 then the VCU 230 switches OFF the at least one pair of TSL 210.
[029] Further, the VCU 230 receives the fault condition of the one or more LEDs 240 from the first control unit 220 and switches OFF the at least one pair of TSL 210 if the fault condition is detected in any of the LEDs 240.
[030] In another aspect, the present invention relates to a method 300 for controlling the TSL in the vehicle 100, as referenced above. Figure 6 illustrates, the method steps involved in the method 300. At step 314, the VCU 230 selects at least one pair of TSL 210. At step 316, the VCU 230 communicates with the first control unit 220 about the selection of the at least one pair of TSL 210. At step 318, the VCU 230 communicates with a first control unit 220 to operate one or more LEDs 240 of the at least one pair of TSL 210. At step 320, the first control unit 220 operates the at least one pair of TSL 210. If a fault condition has occurred in the operation of the one or more LEDs 240, then at step 326, the first control unit 220 detects the fault condition in the operation of the one or more LEDs 240. At step 330, the VCU 230 receives the fault condition from the first control unit 220 of the one or more LEDs 240. At step 336, the VCU 230 switches OFF the at least one pair of TSL 210, if the fault condition is detected in any of the LEDs 240.
[031] In an embodiment, figure 7 illustrates, the method 300 for blinking of the one or more LEDs 240 of the at least one pair of TSL in a predefined pattern. At step 302, the Local Interconnect Network (LIN) bus 250 establishes communication between the first control unit 220 and the VCU 230. At step 304, the first control unit 220 receives the Local Interconnect Network Identification (LIN ID) from the VCU 230 via the LIN bus. At step 306, the first control unit 220 compares the received LIN ID with a designated LIN ID of the first control unit 220. At step 308, if the received LIN ID is not equal to the designated LIN ID then, at step 312, the first control unit 220 remains in an Idle mode. At step 310, if the received LIN ID is equal to the designated LIN ID then, at step 314, the VCU 230 selects at least one pair of TSL 210. At step 316, the VCU 230 communicates with the first control unit 316 about the selection of the at least one pair of TSL 210. At step 318, the VCU 230 communicates with the first control unit 220 to operate one or more LEDs 240 of the at least one pair of TSL 210. At step 320, the first control unit 220 operates the at least one pair of TSL 210. At step 322, the VCU 230 selects the predefined pattern of blinking of the one or more LEDs 240 by reading the Bit frame and selecting the predefined pattern. At step 324, the VCU 230 communicates with the first control unit 220, the predefined pattern of blinking of the one or more LEDs 240 to operate the one or more LEDs 240 of the at least one pair of TSL 210.
[032] In an embodiment, figure 8A and 8B illustrate the method 300 for the detection of the fault conditions in the operation of the one or more LEDs. At step 302, the Local Interconnect Network (LIN) bus 250 establishes communication between the first control unit 220 and the VCU 230. At step 304, the first control unit 220 receives the Local Interconnect Network Identification (LIN ID) from the VCU 230 via the LIN bus. At step 306, the first control unit 220 compares the received LIN ID with a designated LIN ID of the first control unit 220. At step 308, if the received LIN ID is not equal to the designated LIN ID then, at step 312, the first control unit 220 remains in an Idle mode. At step 310, if the received LIN ID is equal to the designated LIN ID then, at step 314, the VCU 230 selects at least one pair of TSL 210. At step 316, the VCU 230 communicates with the first control unit 316 about the selection of the at least one pair of TSL 210. At step 318, the VCU 230 communicates with the first control unit 220 to operate one or more LEDs 240 of the at least one pair of TSL 210. At step 320, the first control unit 220 operates the at least one pair of TSL 210. At step 326, the first control unit 220 detects a fault condition in the operation of the one or more LEDs 240. At step 328, the first control unit 220 communicates to the VCU 230 the fault condition by indicating a fault flag status. At step 332, if the real time blinking pattern is not same as the selected predefined pattern then, at step 334, the fault flag status is 1. And, at step 336, the VCU 230 switches OFF the at least one pair of TSL 210.
[033] At step 338, if the real time blinking pattern is same as the selected predefined pattern then, at step 340, the fault flag status is 0. And, at step 342, the VCU 230 communicates with the first control unit 220, the predefined pattern of blinking of the one or more LEDs 240 to operate the one or more LEDs 240 of the at least one pair of TSL 210.
[034] Advantageously, in the present invention provides a system and a method for controlling the TSL. The LEDs of the TSL of the vehicle can be blinked in the controlled sequential pattern as per the desire of the rider of the vehicle. The circuit arrangement of present invention helps in reducing the General Purpose Input/Output (GPIO)s pins of the first control unit. As a result of which low cost microcontroller unit can be used. Hence, reduces the architecture cost. The same circuit can also be used for the vehicles with different power requirements. Thus, providing a wide spectrum applicability of the present invention to different kind of models of vehicles. Hence, improves the modularity.
[035] Further, the present invention ensures a proper fault detection system in the operation of TSLs which further enhances the safety of the rider of the vehicle.
[036] Furthermore, the blinking of TSLs in controlled sequential pattern not only add to a better safety perspective but also add to styling and aesthetics of vehicle. Also, these days customer like to have a unique product and the blinking of TSLs in a controlled sequential pattern contribute in becoming a major product differentiator.
[037] In light of the abovementioned 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 conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the device itself as the claimed steps provide a technical solution to a technical problem.
[038] 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 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.
[039] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.

List of Reference Numerals:
100: Vehicle
102: Rider seat
104: Grab rail
108: Rear wheel
110: Internal combustion engine
112: Front wheel
120: Front suspension
124: Handlebar
132: Headlamp
146: Front fender
148: Rear fender
200: System
210: Turn Signal Light (TSL)
212: Upper printed circuit board
214: Lower printed circuit board
216: PCB casing
218: Connector
220: First control unit
230: Vehicle Control Unit (VCU)
240: Light emitting diode (s) (LEDs)
242: LED array RH and LED array LH
250: Local interconnect network (LIN) bus
252: High side switches
254: General Purpose Input/Output (GPIO)s
256: Pulse Width Modulator
258: Low pass LC filter
260: Hazard control
262: Low dropout voltage regulator
264: Filtering circuit
266: Power supply
270: Analog to Digital Converter (ADC)
272: Sensor resistor
, Claims:WE CLAIM:
1. A system (200) for controlling a Turn Signal Lamp (TSL) (210) in a vehicle (100), the system (200) comprising:
at least one pair of TSL (210) mounted on the vehicle (100), the at least one pair of TSL (210) having one or more light emitting diodes (LEDs) (240);
a first control unit (220) for operating the at least one pair of TSL (210), the first control unit (220) configured to detect a fault condition in operation of the one or more LEDs (240); and
a Vehicle Control Unit (VCU) (230) communicatively coupled to the first control unit (220), the VCU (230) configured to:
select the at least one pair of TSL (210);
communicate with the first control unit (220) about the selection of the at least one pair of TSL (210);
communicate with the first control unit (220) to operate the one or more LEDs (240) of the at least one pair of TSL (210);
receive the fault condition, from the first control unit (220), of the one or more LEDs (240); and
switch OFF the at least one pair of TSL (210) if the fault condition is detected in any of the LEDs (240).

2. The system (200) as claimed in claim 1 comprising of a Local Interconnect Network (LIN) bus (250) configured to establish communication between the first control unit (220) and the VCU (230) wherein the first control unit (220) being configured to:
receive a Local Interconnect Network Identification (LIN ID) from the VCU (230) via the LIN bus (250); and
compare the received LIN ID with a designated LIN ID of the first control unit (220); wherein:
the first control unit (220) remains in an Idle mode, if the received LIN ID is not equal to the designated LIN ID; and
the VCU (230) configured to communicate with the first control unit (220) to operate the one or more LEDs (240) of the at least one pair of TSL (210) by selecting a predefined pattern of blinking of the one or more LEDs (240), if the received LIN ID is equal to the designated LIN ID.

3. The system (200) as claimed in claim 2, wherein the VCU (230) being configured to select the predefined pattern of blinking of the one or more LEDs (240) by reading a Bit frame and selecting the predefined pattern linked to the Bit frame for blinking of the one or more LEDs (240).

4. The system (200) as claimed in claim 2 and claim 3, wherein the first control unit (220) being configured to detect the fault condition in the operation of the one or more LEDs (240), by comparing a real time pattern of blinking of the one or more LEDs (240) with the selected predefined pattern linked to the Bit frame for blinking of the one or more LEDs (240), and communicate to the VCU (230) the fault condition by indicating a fault flag status; wherein:
the fault flag status is 0, if the real time pattern is same as the selected predefined pattern; or
the fault flag status is 1, if the real time pattern is not same as the selected predefined pattern.

5. The system (200) as claimed in claim 4, wherein the VCU (230) being configured to communicate with the first control unit (220) to operate the one or more LEDs (240) of the at least one pair of TSL (210) by selecting a predefined pattern of blinking of the one or more LEDs (240), if the fault flag status is 0, and the VCU (230) being configured to switch OFF the at least one pair of TSL (210), if the fault flag status is 1.

6. The system (200) as claimed in claim 1, wherein the first control unit (220) configured to operate the at least one pair of TSL (210) by using two high side switches by using a transistor biased with an op-amp for grounding of the consecutive LEDs (240) with a low side current sink of the transistor biased with the op-amp.

7. The system (200) as claimed in claim 1, wherein the first control unit (220) comprising an upper Printed Circuit Board (PCB) (212) and a lower Printed Circuit Board (PCB) (214), wherein the upper PCB (212) having control circuits and the lower PCB (214) having filter circuits and power regulator circuits.

8. A method (300) for controlling a Turn Signal Lamp (TSL) (210) in a vehicle (100), the method (300) comprising steps of:
selecting, by a Vehicle Control Unit (VCU) (230), at least one pair of TSL (210);
communicating, by the VCU (230), with a first control unit (220) about the selection of the at least one pair of TSL (210);
communicating, by the vehicle control unit (VCU) (230), with the first control unit (220) to operate one or more Light Emitting Diodes (LEDs) (240) of the at least one pair of TSL (210);
operating, by the first control unit (220), the at least one pair of TSL (210);
detecting, by the first control unit (220), a fault condition in the operation of the one or more LEDs (240);
receiving, the fault condition, by the VCU (230), from the first control unit (220) of the one or more LEDs (240); and
switching OFF, by the VCU (230), the at least one pair of TSL (210) if the fault condition is detected in any of the LEDs (240).

9. The method (300) as claimed in claim 8, comprising the steps of:
establishing, by a Local Interconnect Network (LIN) bus (250), communication between the first control unit (220) and the VCU (230);
receiving, by the first control unit (220), the Local Interconnect Network Identification (LIN ID) from the VCU (230) via the LIN bus (250);
comparing, by the first control unit (220), the received LIN ID with a designated LIN ID of the first control unit (220);
remaining, by the first control unit (220), in an Idle mode, if the received LIN ID is not equal to the designated LIN ID;
selecting, by a Vehicle Control Unit (VCU) (230), at least one pair of TSL (210);
selecting, by the VCU (230) a predefined pattern of blinking of the one or more LEDs (240), if the received LIN ID is equal to the designated LIN ID; and
communicating, by the VCU (230), with the first control unit (220) the predefined pattern of blinking of the one or more LEDs (240) to operate the one or more LEDs (240) of the at least one pair of TSL (210).

10. The method (300) as claimed in claim 9, comprising the steps of:
selecting, by the VCU (230), the predefined pattern of blinking of the one or more LEDs (240) by reading a Bit frame and selecting the predefined pattern linked to the Bit frame for blinking of the one or more LEDs (240);
communicating, by the VCU (230), with the first control unit (220) the predefined pattern of blinking of the one or more LEDs (240) to operate the one or more LEDs (240) of the at least one pair of TSL (210).

11. The method (300) as claimed in claim 8 and claim 9, comprising the steps of:
detecting, by the first control unit (220), the fault condition in the operation of the one or more LEDs (240) by comparing a real time pattern of blinking of the one or more LEDs (240) with the selected predefined pattern linked to the Bit frame for blinking of the one or more LEDs (240); and
communicating, by the first control unit (220), to the VCU (230) the fault condition by indicating a fault flag status wherein the fault flag status is 0, if the real time pattern is same as the selected predefined pattern; or the fault flag status is 1, if the real time pattern is not same as the selected predefined pattern.

12. The method (300) as claimed in claim 9 and claim 11, comprising the steps of:
communicating, by the VCU (230), with the first control unit (220) the predefined pattern of blinking of the one or more LEDs (240) to operate the one or more LEDs (240) of the at least one pair of TSL (210), if the fault flag status is 0; and

switching OFF, by the VCU (230), the at least one pair of TSL (210), if the fault flag status is 1.

Dated this 19th day of December 2022

TVS MOTOR COMPANY LIMITED
By their Agent & Attorney

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