ASSEMBLY WITH A CORNERING LAMP, TWO WHEELER VEHICLE WITH THE HEADLMAP ASSEMBLY

Technical Field

[0001] The present invention generally relates to headlights on vehicles. More specifically, the invention relates to cornering lamps on vehicles which allow a driver to see beyond the projection area of the regular headlamps when making a turn.

Background

[0002] Travelling under darkness is always a cause of concern for a driver as the absence of natural light impedes vision. A lamp of some kind has always been used when travelling to show the way ahead so that the driver can react in time to undulations and obstructions in the way. Modem land vehicles come equipped with some form of lamp that project a beam of light illuminating the way ahead commonly known as headlights. Two wheeled vehicles generally come with a single headlight assembly disposed in the middle of the vehicle, whereas vehicles with 4 wheels or more come with a plurality of headlight assemblies, at least 2 being placed on either side of the front face of the vehicle.

[0003] The light beams projected by the modem headlights are directed straight forward to optimise utilisation of the lamps and maximize the visibility of the driver as the driver’s vision is oriented forward most of the time. Turning manoeuvres are therefore critical as the visibility of the driver is limited in the direction where they want to turn. Various safety measures are incorporated in vehicles to avoid causing an accident such as turning indicator lamps and braking indicator lamps in conspicuous places so that drivers in vehicles around the vehicle making the turn are sufficiently warned of the fact.

[0004] It is also a known feature that headlamps provided in commercial vehicles come with a low beam as well as a high beam function. While the low beam function can illuminate the immediate path of the vehicle, the high beam function on the other hand provides a comprehensive illumination of the surrounding environment. However, it is at the detriment of other road users, especially the drivers of preceding and oncoming vehicles, who get dazzled. The low beam however, does not dazzle other road users, but has the obvious disadvantage in illuminating the path of the vehicle being driven. Nowadays, due to very high traffic densities, the high beam function can only be used very rarely. Therefore, there is a need to provide headlamp assemblies which provide better illumination than the conventional low beam function, but at the same time do not dazzle other road users like the high beam function.

[0005] Nonetheless, in the absence of a light source illuminating the direction of the driver’s vision when executing a turn, there remains a chance of an accident. One of the ways in which manufacturers choose to solve this issue is to provide additional lamps directed towards the direction of the turn as the vehicle is turning. These lamps are generally automated and switch on as the vehicle is making the turn. However, the method of implementing the solution varies the type of vehicle. This is usually more commonly found in 4-wheeled vehicles, and in high end 2 wheelers. This is primarily due to the systems required to implement the method in 2 wheelers being more complex and expensive than the ones required for 2 wheelers.

[0006] Document US 10023103 discusses and discloses a system and method of controlling and distribution of illumination when a 2-wheeler vehicle is banking in order to control and maintain a pattern of light generally horizontal during the vehicle bank. This system is based on the principle that when yaw axis data is zero, the calculated bank angle can be set to zero. Thus, this is achieved by calculating the roll or pitch of the vehicle when in motion, with the condition that the yaw is not within certain limiting conditions. An apparatus comprising an inertial measurement unit is provided to sample the yaw rate data, and when the predetermined boundary conditions are exceeded.

[0007] Document US9802529 further discusses and discloses a predictively controlled cornering light in a 4-wheeler vehicle. The headlights are provided with a pivoting means and a monitoring system which monitors the roadway and / or lane in front of the vehicle and generates roadway data to drive the pivoting means for setting the headlights at the appropriate position. Further, a model of the headlamp projection on the roadway is made with the data, and the lamp is further rotated to minimize the deviation between the model and the actual roadway data.

[0008] Document EP0842817 further discusses and discloses the control and distribution of illumination in an automatically actuated cornering lights system for 2-wheelers. The system measures the leaning of the two-wheeler vehicle while cornering and its impact on the light throw on the road. Moreover, a light distribution screen is then used to control the intensity of light in order to achieve better visibility in cornering, and at the same time, oncoming traffic is not dazzled by the lights when the vehicle is moving straight. However, this document doesn’t discuss or disclose any control strategy or how to determine the vehicle turning radius to automatically actuate the cornering lamps.

[0009] Navigating through a comer in conditions of limited natural illumination is a dangerous venture. At night, or in comers which are so sharp that visibility around the comer for the driver is nil, this becomes an issue of safety over navigability. The headlamp arrangements provided on vehicles have not changed much, albeit the lamps having become more powerful and efficient. In 4-wheelers, generally two headlamp assemblies are provided on either side of the front grille with forward headlamps and turn signal lamps. In two wheelers, generally a single headlamp assembly is provided disposed in the front portion of the vehicle, in front of the handlebars.

[0010] The headlamps being provided are configured to project a beam of light straight forward, as that is the direction in which the driver’s vision would be oriented most of the time while driving. When turning the vehicle, the driver would look toward the direction in which he/she intends to go. However, the forward projected lights do not turn along the direction of the intended turn, and the dim glow and glimmer from the headlamps that scantily illuminate the driver’s intended path are insufficient for safe driving conditions.

[0011] Although modem headlamps come with low and high beam options. While low beams are effective in illuminating the area immediately ahead of the vehicle, high beams are effective in projecting a beam of light straight ahead with the purpose of illuminating an area further ahead of the current position of the vehicle, so that the driver has ample time to react when moving forward. This however, does not solve the problem of headlamps being ineffective when navigating a turn, especially a tight turn where vision is restricted beyond the turn. In an unlit or a dimly lit road, this could result in accidents.

[0012] Automotive manufacturers try to solve this problem by providing extra lamps, in addition to those already disposed in the headlight assemblies. These lamps are specifically designed as cornering lamps. These lamps are actuated when making a turn, in the direction of the turn, and are not generally otherwise used. While some earlier designs incorporated a manual switch to activate these lamps, they are generally automated. This is generally done by calculating the turning radius of the vehicle, and then directing the light towards the required direction, i.e., the direction of the driver’s vision.

[0013] In 4 wheelers, due to the inherent stability of the vehicle, steering angle can be used to calculate the turning parameters of the vehicle, thus actuating the cornering lamp(s) accordingly. However, in 2-wheelers, the vehicle, being on 2 wheels instead of 4, lacks the stability of a 4-wheeler. Moreover, a 2-wheeler tend to lean during turning, in addition to steering angle (if any).

[0014] 2-wheeler manufacturers generally use this leaning phenomenon as a parameter in determining whether a vehicle is making a turn or not. Systems and methods being implemented measure the lean angle, or the roll angle in order to determine whether the vehicle is making a turn. To accomplish this, a device called an Inertial Measurement Unit (IMU) is used. This is an additional device which has to be interfaced with either the vehicle’s control unit or its own separate control unit. Also, it has to disposed safely in the vehicle. IMUs themselves are complex devices containing multiple functional elements such as gyroscopes, accelerometers, and sometimes magnetometers. Therefore, installing an IMU in a two-wheeler vehicle increases the cost of the vehicle. However, an important safety equipment such as a cornering lamp should be provided. Summary of the Invention

[0015] This summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described below, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

[0016] In an aspect, a method to actuate a cornering lamp(s) for a two wheeler vehicle is disclosed. The method comprises sampling and collecting data about said vehicle’s movement; processing said data to determine a turning radius and a direction of turn of said vehicle; determining a limiting range of said turning radius of said vehicle, and

[0017] actuating cornering lamp(s). Processing said data to determine a turning radius of said vehicle includes accessing a turning radius database stored in a memory unit of a control unit; searching for a value of said turning radius against said sampled data collected during said vehicle’s movement. The data collected about said vehicle being a steering angle and a wheel speed.

[0018] In an embodiment, the wheel speed being measured by a wheel speed sensor disposed on any one of a front wheel and a rear wheel, and being communicatively transmitted to said control unit of said vehicle.

[0019] In an embodiment, the steering angle being measured by a steering angle sensor being disposed near a head tube of a frame of said vehicle.

[0020] In an embodiment, the steering angle sensor being a potentiometer.

[0021] In an embodiment, determining said turning radius includes configuring a processor in said control unit of said vehicle to access a turning radius database; searching for a value of said turning radius corresponding to said wheel speed and said steering angle; wherein an undetermined turning radius value being set to zero.

[0022] In an embodiment, determining said direction of turn comprises determining whether said steering angle being negative or positive, wherein, a negative value of a steering angle being a left turn, and a positive value of a steering angle being a right turn. [0023] In an embodiment, determining a limiting range of said turning radius includes determining whether said value of said turning radius being confined within boundary values of a first limiting range ; if said value of said turning radius not being within said boundary values, determining whether said value of said turning radius being confined within boundary values of a second limiting range ; wherein, if said value of said turning radius not being within said boundary values, determining whether said value of said turning radius being confined within boundary values of a third limiting range; wherein, if said value of said turning radius not being within said boundary values, said turning radius (Rt) being set to zero.

[0024] In an embodiment, actuating said cornering lamp(s) includes selecting said lamp(s) for actuation based on said direction of turn (701, 702) and said limiting range of turning radius; and determining the actuating parameters of said selected lamp(s); wherein, said actuating parameters includes choosing a plurality of lamp(s) being actuated; choosing an angle of rotation for a lamp being actuated, wherein said lamp being configured for rotation within a lamp housing, said rotation being enabled by a servo motor, and choosing an intensity for a lamp(s) being actuated.

[0025] In an embodiment, the method being implemented for a two wheeler vehicle having a lamp housing assembly, a wheel speed sensor, a steering sensor, and a control unit.

[0026] In an aspect, a device for actuating a cornering lamp(s) in a two wheeler vehicle is disclosed. The device includes a wheel speed sensor, a steering angle sensor, and a control unit; the control unit comprising of a processor(s), one or more memory unit(s), an input interface and an output interface; the one or more memory unit(s) storing a turning radius database.

[0027] In an embodiment, the steering angle sensor being a potentiometer, and said components of said control unit being electronic devices.

[0028] In an embodiment, the wheel speed sensor being disposed on any one of a front wheel and a rear wheel of said two wheeler vehicle, and said wheel speed sensor sampling a value of a speed of said wheel of said vehicle a predetermined number of times in a predetermined interval of time.

[0029] In an embodiment, the steering angle sensor being disposed near a headtube of a frame of said two wheeler vehicle, and said steering angle sensor sampling a value of a degree of rotation of a steering rod of said vehicle a predetermined number of times in a predetermined interval of time.

[0030] In an embodiment, the wheel speed sensor and said steering angle sensor communicatively transmit said sampled value(s) to said control unit said predetermined number of times in said predetermined interval.

[0031] In an embodiment, the control unit being configured as, the input interface being communicatively connected to said sensors; the input interface being communicatively connected to said processor(s) and said one or more memory unit(s); and the output interface being communicatively connected to said processor(s) and said one or more memory unit(s); wherein, the input interface communicatively transmits said value(s) of wheel speed and steering rotation to said processor(s) and said memory unit(s), said memory unit(s) being configured to retrieve and store said value (s) and said turning radius database.

[0032] In an embodiment, the processor(s) are configured to determine a turning radius value stored in one or more memory unit(s), comprises said memory unit(s) retrieving said turning radius database; said processor(s) searching said database for a value of said turning radius corresponding to said values of wheel speed and degree of rotation of said steering; said value of said turning radius being stored in said one or more memory unit(s).

[0033] In an embodiment, said processor(s) being configured to determine a limiting range of said turning radius (Rt), comprises said value of said turning radius being retrieved from said one or more memory unit(s); searching for a predetermined limiting range with boundary values such that, a minimum value is less than said turning radius, and a maximum value is more than said turning radius; said limiting range being stored in said one or more memory unit(s). [0034] In an embodiment, the processor(s) being configured to determine an actuating parameters of said cornering lamp(s), and storing said parameters in said one or more memory unit(s).

[0035] In an embodiment, said actuating parameters being communicatively transmitted to said output interface.

[0036] In an aspect, a headlamp assembly for a two wheeler vehicle comprising cornering lamp(s), wherein the actuation switch of said cornering lamp(s) being connected to said output interface (508) of said control unit (102), as disclosed above.

[0037] In an embodiment, a device as disclosed above being configured to implement a method as disclosed above, to actuate a cornering lamp(s) as disclosed above.

Brief Description of Drawings

[0038] The details are described with reference to an embodiment of the present invention along with the accompanying diagrams and flow charts. The inventive concepts are explained through the same, and the same serial numbers are used throughout the drawings and flowcharts to reference similar features and components.

[0039] Figure 1 is an exemplary illustration of a 2-wheeler vehicle.

[0040] Figure 2 exemplarily illustrates through the flow diagram, the method of sampling data by the sensors according to an embodiment of the present invention.

[0041] Figure 3 exemplarily illustrates through the flow diagram, the method of determining the turning radius of the vehicle based on the sensor data according to an embodiment of the present invention.

[0042] Figure 4 exemplarily illustrates through the flow diagrams, the method of actuating the cornering lamp(s) according to an embodiment of the present [0043] Figure 5 exemplarily illustrates the communicative connectivity between the sensors, the processors, and the cornering lamps according to an embodiment of the present invention.

[0044] Figure 6 exemplarily illustrates the turning radius of the vehicle, and a representative example of the limiting range of the turning radius.

Detailed Description

[0045] Various features and embodiments of the present invention here will be discernible from the following description thereof, set out hereunder.

[0046] The present invention proposes a method and a system for determining the turning radius of a two-wheeler vehicle and actuating the cornering lamp(s) automatically without using an IMU. More specifically, the present invention achieves the above stated objectives without determining the lean angle at any stage.

[0047] In an embodiment of the present invention, the turning radius of the twowheeler vehicle is determined by measuring the steering angle and the speed of the vehicle.

[0048] In another embodiment, the steering angle is determined by a steering angle sensor, and the speed of the vehicle from a wheel speed sensor. In an embodiment, the steering angle sensor is a potentiometer. In another embodiment, the measurement of the steering angle and the wheel speed is carried out several times in an interval, each measurement known as a sample.

[0049] In yet another embodiment, the sensors are connected to the Control Unit. The input data is analysed by the control unit. In an embodiment, the Control Unit is housed within the Electronic Control Unit of the vehicle. In another embodiment, the measurements are done against each sampled value. In yet another embodiment, the clock speed of the processor of the control unit is faster than the sampling rate of the sensors.

[0050] In an embodiment of the present invention, the cornering lamp is actuated upon determining the turning radius. In another embodiment, the control unit determines the limiting range of the turning radius. In yet another embodiment, actuation parameters have been pre-set into the control unit according to the turning radius limiting range.

[0051] In another embodiment of the present invention, the value of turning radius is stored into the memory of the control into against sampled values of steering angle and vehicle speed. In yet another embodiment, determination of the turning radius is searching for the value of the turning radius in the stored database against the sampled values from the sensors. In another embodiment, a negative value of the turning radius represents a left turn and a positive value of the turning radius represents a right turn.

[0052] In an embodiment of the present invention, the cornering lamp(s) are disposed on either side of the headlamp assembly. In another embodiment, there are multiple lamps on either side of the headlamp assembly. In another embodiment, each individual lamp has a specific intensity and a specific direction of light.

[0053] In another embodiment of the present invention, either side of the headlamp assembly is fitted with a single lamp, with variable intensity of light corresponding to each limiting range of turning radius.

[0054] In another embodiment of the present invention, the cornering lamp(s) are equipped with a rotary actuator which allows the lamp(s) to be directed towards the turn as per the determined parameters. In an embodiment, the rotary actuators are servo motors.

[0055] In an embodiment of the present invention, the cornering lamps are only actuated while turning during conditions of low ambient light. In another embodiment, the cornering lamps are only actuated if the headlamps are turned on. In another embodiment of the present invention, the vehicle is equipped with an ambient light sensor determining the level of ambient light, which is a parameter in determining whether or not to activate the cornering lamp(s).

[0056] In another embodiment of the present invention, the cornering lamp(s) and other associated systems, sensors and controllers are connected to an auxiliary battery. In another embodiment of the invention, the assembly of sensors, cornering lamp(s), controller(s), batery(ies), and other associated systems can be retrofitted in a two-wheeler.

[0057] The following description is given according to an exemplary embodiment of the present invention.

[0058] Figure 1 exemplarily illustrates a representative side perspective view of a two-wheeler vehicle (100) according to an embodiment of the present invention. In the present embodiment, the vehicle (100) is configured to have a control unit (102), a steering angle sensor (104) disposed near the headtube (108), a wheel speed sensor (106), a headlamp assembly (112). According to the present embodiment, the cornering lamp(s) (510) are disposed near the headlamp assembly (112).

[0059] Figure 2 illustrates a flow diagram of logical processes for a method (200) that may be implemented by the control unit (102). This method may include the following steps.

[0060] (200) illustrates the method of actuating the cornering lamp(s) ( 10) based on steering angle data as per an embodiment of the present invention.

[0061] At (202), the steering angle data sample is determined by the steering angle sensor. As per an embodiment of the present invention, the steering angle sensor is a potentiometer, which would give either a positive or a negative voltage reading based on the steering angle. As per another embodiment of the present invention, the steering angle sensor give a negative voltage reading when turning left, and a positive voltage reading when turning right.

[0062] At (204), the voltage reading given by the potentiometer is communicatively transmitted by the sensor to the Control Unit. As per an embodiment, the Control unit determines the direction of the turn based on the whether the voltage reading is negative or positive.

[0063] At (206), the Control Unit actuates the Cornering lamp(s) (510) as per the parameters calculated by it based on the data sample by the steering angle sensor at (202). [0064] Figure 3 illustrates another flow diagram of logical processes for a method (300) that may be implemented by the control unit (102). This method may include the following steps.

[0065] (300) illustrates the method of actuating the cornering lamp(s) (510) based of the wheel speed sensor data as per an embodiment of the present invention.

[0066] At (302), the wheel speed data sample is determined by the Wheel speed sensor. As per an embodiment of the present invention, the vehicle is equipped with Antilock Braking System (ABS), and the wheel speed sensor is used by both the ABS and Cornering lamp systems implemented on the vehicle. As per another embodiment of the present invention, the vehicle has a standalone wheel speed sensor which is exclusively used by the Cornering lamp system on the vehicle.

[0067] At (304), the data sample collected by the wheel speed sensor is communicatively transmitted by the sensor to the control unit.

[0068] At (306), the Control Unit actuates the Cornering lamp(s) ( 10) as per the parameters calculated by it based on the data sample by the wheel speed sensor at (302).

[0069] Figure 4(a) illustrates yet another flow diagram of logical processes for a method (400) that may be implemented by the control unit (102). This method may include the following steps.

[0070] (400) illustrates the method of determination of the turning radius of the vehicle based on the data received in (200) and (300), and actuating the cornering lamp(s) (510) as per an embodiment of the present invention.

[0071] At (401), the control unit communicatively receives data from the steering angle sensor (104) and the wheel speed sensor (106), the respective data being communicatively transmitted to the control unit at (204) and (304).

[0072] At (402), the pre-set data map is accessed by the control unit to search for the value of the turning radius against the determined values of the steering angle and the wheel speed.

[0073] As per an embodiment of the present invention, the pre-set data map is a data cache wherein the optimum values of turning radius are stored against real values of the steering angle and the wheel speed. As per another embodiment, the pre-set data map is stored in the memory of the Control Unit. As per yet another embodiment, there is a separate memory unit within the control unit (102) which stores the pre-set data map.

[0074] As per another embodiment of the present invention, the pre-set data map is a Turning Radius Database, comprising of values of optimum turning radii against the determined values of steering angle and wheel speed. As per an embodiment, the processor in the control unit searches this database for the optimum turning radius value for every sample data determined by the sensors.

[0075] At (404), the turning radius value is determined after searching the pre-set data map. As per an embodiment of the present invention, the processor is configured to run a search query to determine the turning radius from the data map.

[0076] As per another embodiment, the determined turning radius has either a positive value or a negative value. As per yet another embodiment, the steering angle value determines whether the value of the turning radius is positive or negative.

[0077] At (406), the direction of the turn is determined by the control unit. As per an embodiment, the direction of the turn is determined by the control unit depending on whether the determined turning radius has a positive or negative value. As per another embodiment, a positive value corresponds to a right turn, whereas a negative value corresponds to a left turn.

[0078] At (408), the limiting range of the turning radius is determined. As per an embodiment, the minimum turning radius is determined by the configuration and build of the vehicle itself, which represent the minimum radius required for the vehicle to make a 180 degree turn, representing the tightest turn possible. The determined turning radius is above this value. As per another embodiment, the entire range of the turning radius will be divided into a plurality of predetermined number of limiting ranges. Each limiting range has a maximum limit of turning radius and a minimum limit of turning radius. [0079] As per an embodiment of the present invention, the limiting range of the turning radius is determined by employing a sorting algorithm, placing the determined turning radius between a pair of corresponding maximum limit and a minimum limit.

[0080] At (410), the actuation parameters are determined by the control unit. As per an embodiment of the present invention, there are a plurality of cornering lamp(s) (510) on either side of the headlamp assembly, each of which can be actuated as required depending on the determined turning radius. As per another embodiment, the lamp(s) are actuated depending on the determined limiting range of the turning radius As per another embodiment, the intensity of the lamp(s) can be varied depending on the determined actual turning radius, or the determined limiting range of the turning radius.

[0081] At (416), the turning lamps are actuated based on the actuating parameters determined at (410).

[0082] Figure 4(b) illustrates yet another flow diagram of logical processes for a method (410a) that may be implemented by the control unit ( 102) . This method may include the following steps.

[0083] (410a) illustrates the method of determining the actuation parameters (410) of the cornering lamp(s) ( 10) as per an embodiment (400) of the present invention.

[0084] As per the present embodiment, a plurality of lamp(s) are disposed near the headlamp assembly for implementing the function of cornering lamp(s) (510). As per another embodiment, the orientation of the lamp(s) may vary depending on where they are disposed.

[0085] At (412a), determination is made as to which lamp(s) are to be made depending on the determined limiting range of the turning radius at (408), and the determined direction of the turn at (406). As per another embodiment, the determination in (412a) could be made with the determined turning radius at (404) instead of the limiting range of the turning radius at (408).

[0086] At (414a), determination is made as to the actuation level(s) of the lamp(s). As per an embodiment, actuation level(s) correspond to the brightness and intensity of the lamp(s). As per another embodiment, the actuation level(s) can be determined with the wheel speed of the vehicle determined at (302).

[0087] At (416a), the Cornering lamp(s) (510) are actuated according to the present embodiment.

[0088] Figure 4(c) illustrates yet another flow diagram of logical processes for a method (410b) that may be implemented by the control unit ( 102) . This method may include the following steps.

[0089] (410b) illustrates the method of determining the actuation parameters (410) of the cornering lamp(s) ( 10) as per an embodiment (400) of the present invention.

[0090] As per the present embodiment, cornering lamp(s) (510) are disposed near the headlamp assembly. As per another embodiment, the lamp(s) are configured to be rotatable. As per an embodiment, Servo motors are configured in the cornering lamp assembly, so that the lamp(s) are rotatable.

[0091] At (412b), determination is made as to which lamp(s) are to be made depending on the determined limiting range of the turning radius at (408), and the determined direction of the turn at (406). As per another embodiment, the determination in (412b) could be made with the determined turning radius at (404) instead of the limiting range of the turning radius at (408).

[0092] At (414b), determination is made as to the actuation level(s) of the lamp(s). As per an embodiment, actuation level(s) correspond to the brightness and intensity of the lamp(s). As per another embodiment, the actuation level(s) can be determined with the wheel speed of the vehicle determined at (302).

[0093] At (416b), the Cornering lamp(s) (510) are actuated according to the present embodiment.

[0094] Figure 4(d) illustrates yet another flow diagram of logical processes for a method (410b) that may be implemented by the control unit ( 102) . This method may include the following steps.

[0095] (410c) illustrates the method of determining the actuation parameters (410) of the cornering lamp(s) (510) as per an embodiment (400) of the present invention. [0096] As per the present embodiment, cornering lamp(s) (510) are disposed near the headlamp assembly.

[0097] Determination as to which cornering lamp(s) (510) is to be actuated is made depending on the direction of the turn determined at (406).

[0098] At (412c), determination is made as to the actuation level(s) of the lamp(s). As per an embodiment, actuation level(s) correspond to the brightness and intensity of the lamp(s). As per another embodiment, the actuation level(s) can be determined with the wheel speed of the vehicle determined at (302).

[0099] At (416c), the Cornering lamp(s) ( 10) are actuated according to the present embodiment.

[0100] Figure 5 illustrates a representative block diagram of the system (500) implementing the method(s) described previously. As per an embodiment of the present invention, this system (500) can be implemented in the control unit (102) of the vehicle.

[0101] The steering angle sensor (104) and the wheel speed sensor (106) are communicatively connected to the input interface (502) of the system (500). As per an embodiment, the input interface is configured to convert the analogue signals being communicatively transmitted by the sensors (102, 106) into digital signals. As per another embodiment, the analogue signals being sent were the sample data.

[0102] The processor(s) (504) is communicatively connected to the input interface (502) as well as the memory (505) of the control unit (102). As per an embodiment of the present invention, the determinations made in the methods described above are done by the processor(s) (504).

[0103] As per the present embodiment, the memory unit (505) stores pre-set data map. As per another embodiment, the pre-set data map is a database for the optimum values of the turning radii against real values of steering angle and wheel speed. As per another embodiment, the turning radius database (506) / pre-set data map is stored in a separate cache in the memory unit (505). As per another embodiment, the memory unit (505) is an electronic / ionic device, including both temporary data and permanent data, as well as booting sequences.

[0104] As per an embodiment, the actuation parameters determined by the processor(s) (504) at (410) are stored in the memory (505). According to this embodiment, the stored actuation parameters are then communicatively transmitted to the output interface(s) (508). As per another embodiment, the processor(s) (504) send the actuation parameters directly to the output interface(s) (508) upon determination of the same. As per another embodiment, the output interface(s) (508) converts the digital signals received from the memory into analogue signals.

[0105] The cornering lamp(s) (510) are then actuated as per various embodiments of the method being disclosed in this invention, generally described by the various embodiments at (400), (410a), (410b) and (410c).

[0106] Figure 6 generally illustrates the limiting range of turning radius, determined at (408).

[0107] (600) illustrates the limiting range of the turning radius being predefined and stored in the memory (505) of the system (500). In this exemplary diagram, a plurality of limiting range of turning radii are shown, with the shortest being at (601), the intermediate at (602) and the largest radius shown being at (603). As per an embodiment, the limiting ranges may be continuous or discontinuous.

[0108] A straight line is part of a circle with infinite radius. Thus, for a vehicle (100) travelling in a straight line, such a range could not be defined. Any motion other than in a straight line, however, has a definite radius.

[0109] As per an embodiment, below a certain value of turning radius, the cornering lamp(s) become necessary and effective. However, above a certain value, cornering lamps are not necessary. As per another embodiment, this range of turning radii within which the cornering lamps are necessary and effective are divided into a plurality of limiting ranges.

[0110] As per an embodiment, there are three limiting range(s). The limiting radius with the shortest range being range 1, the intermediate range being range 2 and the longest radius being in range 3. According to another embodiment, the minimum value of Range 3 is equal to the maximum value of range 2, the minimum value of range 2 is equal to the maximum value of range 1. According to another embodiment, the maximum value of range 3 is the maximum radius above which cornering lamps are not necessary. According to yet another embodiment, the minimum value of range 1 is the minimum radius below which cornering lamps are not necessary.

[0111] Figure 7 illustrates the value of the steering angle being determined by the direction of the turn.

[0112] (701) illustrates that a right turn actuates a positive value in the steering angle sensor (104). The turning radius (Rt) is positive.

[0113] (702) illustrates that a left turn actuates a negative value in the steering angle sensor (104). The turning radius (Rt) is negative.

[0114] In light of the above-mentioned advantages and the technical advancements provided by the disclosed method and system, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the above-mentioned solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the system itself as the claimed steps provide a technical solution to a technical problem.

List of reference numerals:

100 - vehicle

102 - control unit

104 - steering angle sensor 106 - wheel speed sensor

108 - headtube

110 - front wheel

112 - headlamp assembly

500 - the system 502 - input interface

504 - processor(s)

505 - memory

506 - turning radius database

508 - output interface 510 - cornering lamp(s)