FORM-2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE
Specification
(See Section 10 and Rule 13)
VEHICLE LAMP ILLUMINATION CONTROL SYSTEM
MAHINDRA TWO WHEELERS LIMITED
an Indian Company
of Dl Block, Plot No. 18/2, MIDC, Chinchwad, Pune - 411 019, Maharashtra, India
Inventors:
1. SUNDARAM SUDHARSHAN
2. JASTI KIRANKUMAR
3. MALAGISATOSH
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE NATURE OF THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED

FIELD OF THE DISCLOSURE
The present disclosure relates to the field of controlling lighting system of a vehicle.
BACKGROUND
A vehicle is provided with at least one light for illuminating the road ahead of vehicle. A head lamp enables illuminating the front as the vehicle advances through a dark area. Although there are requirements in some countries, where the head lamp is required to be kept in ON condition during day time for specific reasons, the head lamp is required to illuminate the front of the vehicle in conditions such as night and not during day time, when sufficient day light is available. In some countries as an alternate to keeping headlight ON condition, additional lamps called as day time running lamps (DRL) are provided.
In case the head lamp is switched ON during night travel and the driver does not turn OFF the head lamp when he initiates day travel in the next occasion, the head lamp undesirably remains ON even during day travel until someone approaching the vehicle indicates that the head lamp is ON or the driver realizes himself after some lapse of time. Such inadvertence causes undesirable wastage of power, thereby causing considerable energy losses. With increasing energy cost, there is felt a need to conserve energy by minimizing energy losses. Also, such inadvertent use of headlamp reduces the life of headlamp bulb.
Hence, there was felt a need for a control system that automatically switches off the head lamp when not required, thereby conserving power.

OBJECTS
Some of the objects of the system of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present disclosure is to provide a head lamp control system that prevents wastage of power caused due to head lamps remaining on during day travel.
Another object of the present disclosure is to provide a system that selectively actuates the head lamp based on predefined criteria for conserving power.
Still another object of the present disclosure is to provide a control system that reduces avoidable power consumption by the head lamp.
Yet another object of the present disclosure is to provide a control system that increases the operational life of the head lamp, particularly the headlamp bulb.
Still another object of the present disclosure is to provide a control system that is convenient to use.
Another object of the present disclosure is to provide a control system that is easily retrofitted on conventional vehicles.
Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

SUMMARY
In accordance with the present disclosure there is provided a vehicle lamp illumination control system for selectively turning ON/OFF at least one vehicular lamp, the system comprising:
• an ignition sensor to sense an operative/inoperative state of the ignition of said vehicle;
• a controller adapted to receive the sensed signals from the ignition sensor through a receiving mean; and
• a transmitting means adapted to transmit signal from the ignition sensor to a lamp switch,
the lamp switch adapted to receive signals from the controller such that the lamp switch is instantaneously turned to OFF position when the ignition is turned from the inoperative state to the operative state, and
the lamp switch adapted to be shifted to the OFF position after a predetermined delay when the ignition is shifted from the operative state to the inoperative state.
Additionally, a time adjusting switch is provided to permit adjusting the time interval for the predetermined delay.
Additionally, an over-ride switch is provided to permit switching the lamp switch from an OFF position to an ON position by manual actuation by a driver of the vehicle.
Typically, the controller is selected from the group selected from a micro-controller, an electrical controller and an electronic controller.

DETAILED DESCRIPTION
A system and a method of the present disclosure will now be described with reference to the embodiments which do not limit the scope and ambit of the disclosure.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The head lamp control system includes a controller receiving signals from an ignition sensor. The controller is typically a micro-controller, an electrical controller or an electronic controller. The ignition sensor senses the operative and inoperative state of the ignition of a vehicle. The controller on receiving the sensed state of the ignition from the ignition sensor transmits the signal to at least one lamp switch through a transmitting means. The lamp switch is displaceable between an ON position and an OFF position resulting in ON and OFF state of at least one associated lamp respectively. The lamps to be turned ON/OFF by the lamp switches are typically head lamp, fog lamp or interior lights.
When the ignition of the vehicle is switched from an inoperative state to an operative state for starting the vehicle, the ignition sensor senses the operative state of the ignition and generates a sensed signal. The sensed signal is received .

by the controller is transmitted by the transmitting means to trigger at least one of the lamp switches to instantaneously shift them to an OFF position. Thus, on switching the ignition of the operative state, the lamps associated with each of the lamp switches are in their OFF state thereby preventing unnecessary illumination due to inadvertence of the driver.
Further, when the ignition of the vehicle is switched from an operative state to an inoperative state, the ignition sensor senses the inoperative state of the ignition and generates corresponding sensed signal. The controller receives the signal from the ignition sensor and transmits the same to the lamp switches. The controller triggers the lamp switches to be shifted to the OFF position after a predetermined delay so as to provide the driver with adequate illumination of the interior of the vehicle and the surrounding. This enables the driver to comfortably exit the vehicle while having a fair indication of the surrounding. The time interval for the predetermined delay is adjustable with the help of a time adjusting switch..
The head lamp control system is further provided with an over-ride switch to enable switching the lamp switch from an OFF position to an ON position by manual actuation by a driver of the vehicle. Thus, if the ignition is sensed to be in operative state and the lamp switch is shifted from OFF to ON, the control system interprets that the driver intentionally requires the lamps to be in their ON state. Similarly, in an inoperative state of the ignition, if the lamp switch is shifted from the ON position to the OFF position during the time interval of the predetermined delay, the control system interprets that the driver does not require the illumination of the lamps.

TECHNICAL ADVANCEMENTS
The technical advancements offered by the present disclosure include the realization of:
• prevention of wastage of power caused due to head lamps remaining on during day travel;
• a system to selectively actuate the head lamp based on predefined criteria for conserving power;
• a system which reduces power consumption by the head lamp;
• a system which increases the operational life of the lamp;
• a system which is convenient to use;
• a system which is retrofitable on conventional vehicles.
Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression "at least" or "at least one" suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
The numerical values given of various physical parameters, dimensions and quantities are only approximate values and it is envisaged that the values higher or lower than the numerical value assigned to the physical parameters, dimensions and quantities fall within the scope of the disclosure unless there is a statement in the specification to the contrary.

Wherever a range of values is specified, a value up to 10% below and above the lowest and highest numerical value respectively, of the specified range, is included in the scope of the disclosure.
The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

We claim:
1. A vehicle lamp illumination control system for selectively turning ON/OFF
at least one vehicular lamp, said system comprising:
• an ignition sensor to sense an operative/inoperative state of the ignition of said vehicle;
• a controller adapted to receive the sensed signals from said ignition sensor through a receiving mean; and
• a transmitting means adapted to transmit signal from said ignition sensor to a lamp switch,
said lamp switch adapted to receive signals from said controller such that said lamp switch is instantaneously turned to OFF position when the ignition is turned from said inoperative state to said operative state, and
said lamp switch adapted to be shifted to the OFF position after a predetermined delay when the ignition is shifted from said operative state to said inoperative state.
2. The system as claimed in claim 1 further comprising a time adjusting switch to permit adjusting the time interval of said predetermined delay.
3. The system as claimed in claim 1 further comprising an over-ride switch to permit switching said lamp switch from an OFF position to an ON position by manual actuation by a driver of the vehicle.

4. The system as claimed in claim 1, wherein said controller is selected from the group selected from a micro-controller, an electrical controller and an electronics controller.