THE PATENT ACT, 1970,
(39 OF 1970)
&
THE PATENTS RULE, 2003
COMPLETE SPECIFICATION
(See Section 10; Rule 13)
"AUTOMATIC WINDOW CLOSING SYSTEM FOR AUTOMOTIVE
VEHICLE"
MAHINDRA & MAHINDRA LIMITED
AN INDIAN COMPANY,
R&D CENTER, AUTOMOTIVE SECTOR,
89, M.I.D.C, SATPUR,
NASHIK - 422 007,
MAHARASHTRA, INDIA.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE NATURE OF THIS INVENTION AND THE ..TANNER IN WHICH IT IS TO BE PERFORMED

FIELD OF THE INVENTION:
The present invention is related to the field of automatic vehicle system. More particularly the present invention relates to an automatic window closing system for automotive vehicles depending on the ON- position of the air conditioner inside the vehicle.
BACKGROUND OF THE PRESENT INVENTION:
Now a day, automatic systems in automotive vehicles are adding to the comfort and ease of drivers and passengers as well. When occupant of the vehicle wants to switch on the air conditioner, he has to manually close all the windows. Otherwise, it will put unnecessary load on the air conditioner and no cooling effect will be achieved. Every time prior to switch on the air conditioner, rolling up of the windows manually may be bothersome to drivers and / or passengers of the vehicle. Variety of automatic window closing systems is available in public domain which has met with varying degree of success.
Korean patent application No. KR 100373278 discloses an apparatus for automatically closing window of a vehicle to prevent the vehicle from being stolen even if a driver gets off from the vehicle without closing the windows. An apparatus includes a power source for supplying power to the vehicle, a key switch, a door locking section connected to a predetermined portion of a door, a limit switch section having limit switches, a control section, which recognizes a locking state of the door when a signal is inputted therein from the limit switch section and an automatic control device. The automatic control device has a motor, which is operated as an output signal is applied thereto from the control section, first and second supporters operated as the motor is driven, and a fixing member for fixing the second supporter. In this system, it activates and closes the window automatically only if the doors are locked. The system senses the locked position of the vehicle doors.

Another Korean patent application No. KR 950000580 describes a device for automatic shutting of a vehicle. The door windows closing system closes the door windows automatically if the windows are open when the ignition switch is off. The system closes the door windows by supplying power to a window driving motor until status of a window switch is changed to on to indicate that the windows are closed. A control part controls these processes and comprises a sensing part comprising a NOR-gate and transistors, relays supplying power according to output from the sensing part, and resisters maintaining a circuit stable.
In this system, it activates and closes the window automatically only if the . ignition switch is in OFF position. The system senses the OFF position of the ignition switch.
US Patent No. 6748308 advocates on automated closure system and method. The powered window system includes a window moveable between an open and a closed position. A motor is coupled. to the window The motor causes selective movement of the window. At least one of a switch and communication bus is coupled to the motor. A processor is coupled to at least one of the switch and the communications bus and is configured to selectively send at least one of close and open signals to at least one of the switch and the communications bus. A sensor is coupled to the processor and senses on which automated window closure is based. The sensor sends condition signals to the processor. The processor interprets the condition signals and selectively sends a closed signal to at least one of the switch and the communications bus when the conditional signal exceeds a prescribed threshold.
Japanese patent application No. JP 2003312253 educates on automatic opening and closing device for windows. An air conditioner ECU acquires vehicle speed information showing a vehicle speed from meter ECU, acquires ambient air temperature information showing an ambient air temperature from an ambient temperature sensor, and acquires wind speed information from a wind speed sensor, after carrying out natural air conditioning processing using CPU. And based on these information, the opening degree D of the window is

set and a command signal with the opering degree of is transmitted to a power window controller such that when the vehicle speed increases the opening degree decreases, when the vehicle speed decrease the opening degree increases, when the ambient air temperature rises the opening degree increases, when the ambient air temperature falls the opening degree decreases. The power window controller opens or closes the window based on the opening degree D received from the air conditioner ECU. In this system, it activates and closes the window automatically only by sensing environmental parameters (ambient temperature, wind speed) and vehicle speed.
US Patent application No. US 2007188122 disclose rain sensing automatic power windows. A control system and method for closing a window on an unattended vehicle includes a window actuator coupled to the window and adapted to move the window. An occupant detection system generates an occupant signal. A rair, sensor generates a rain signal. A window obstruction sensor generates an obstruction signal based on an object obstructing a path of the window. A controller communicates with the occupant detection system, the rain sensor and the window obstruction sensor and generates and communicates a window signal to the window actuator based on the occupant signal, the rain signal and the obstruction signal.
In this system, it activates and closes the window automatically only by sensing the rain.
None of the prior art concepts talk about the automatic closing of vehicle windows by sensing the position (ON) of the air conditioner inside the vehicle.
OBJECTIVES OF THE PRESENT INVENTION:
The main object of the present invention is to provide a novel system to automatically close the window of a vehicle by sensing the ON position of the air conditioner.
Another object of the present invention is to close the window/s once the AC switch/button is put on.

Yet another object of the present invention is to give audio and/or audiovisual signals to the passengers about the closing of the window/s after the AC switch is put on.
Another object of the present invention is to overcome the drawbacks of the prior art system for automatic window closing.
STATEMENT OF INVENTION
In accordance with the present invention an automatic window closing system for automotive vehicle comprises a first sensor for sensing the air conditioner switch in on position, a second sensor for sensing rain, a third sensor for ambient temperature sensing, fourth sensor for vehicle speed sensing and fifth sensor for remote locking system sensing; 3 processor unit embedded with a particular iogic and configured, to receive the input signal from the said sensors, code the input signal, process the signal from any one of the said sensors and decode it to generate first out put to operate window latch for closing the window, and /or an audio message as second out put indicating the task and third out put as visual indication about the malfunction of system if any.
BRIEF DESCRIPTION OF THE DRAWING:
The invention will become more fully understood from the following detailed description, taken in conjunction with the accompanying drawings, wherein like reference numerals refer to like elements, in which,
Figure 1 shows block diagram of an automatic window closing system in accordance with the present invention.
Figure 2 describes working flowchart of an automatic window closing system in accordance with the present invention.

DETAILED DESCRIPTION OF THE PRESENT INVENTION
Referring to Figure 1, automatic window closing system (1) comprises of set of input signals (2), input signal processing unit / controller (3) and set of output (4). The set of input signals (2) comprises of rain sensor (5), air conditioner switch in ON position (6), ambient temperature sensor (7), vehicle speed sensor (8) and remote locking (9). The rain sensor (5) is mounted on the wind screen of a vehicle and it senses the rain falling on the vehicle / windscreen. Air conditioner switch (6) is mounted on the instrument panel of a vehicle and used to switch ON/OFF the air conditioner. Ambient air temperature sensor (7) is mounted on the instrument panel of a vehicle and it senses the ambient temperature inside the vehicle cab / passenger compartment. Vehicle speed sensor (8) is mounted on the transmission and it senses the pulses of transmission system. Remote locking (9) system is generally in the ignition key to lock the vehicle from remote location.
Signal processing unit (3) receives the input signals either in analogue or digital form or combination of thereof and code it in the format compatible to the controller. Ambient temperature sensor, 'ON' position of AC switch and Rain sensor gives analog inputs to the controller where as Vehicle speed sensor gives digital input to the controller for its processing. The controller unit processes the input signal and again decode it to actuate the latch of the window by which the window is closed automatically.
Based on these input parameters, the system gives output in any of the three formats or combination of thereof. The output from the system is mechanical action leading to auto close of window (10), audio message (11) such as Window is going to close' or 'Switch ON AC as the case may be, and visual output (12) by blinking yellow light on the integrated panel of a vehicle if malfunction is detected in the system.
The processing / control unit (3) is embedded with a particular logic performing task as per the flow chart as illustrated in figure 2 and is configured to process the input signals and triggers the glass winding latch of

the window to close the window automatically. The signal processing / control unit is located under the driver seat and it is well connected with the input sensors and output devices with wiring harness and/or any suitable communication modules.
Referring to figure 2, when there is a rain, the rain sensor mounted on the wind screen of a vehicle senses it and sends the message/signal to the controller for its processing. The controller processes the input information, decodes it in the required format and actuates the glass winding mechanism of the window thereby closing the window automatically. While closing the window, the system gives audio message for the passenger's safety that Window is going to close'.
When the air conditioner of a vehicle is put ON, the system takes 'ON position of AC switch' as the input and send it +o the controller. The controller processes the information and actuates the glass winding mechanism of the window thereby closing the window of a vehicle automatically.
When the temperature inside vehicle cab / passenger compartment goes beyond 24 degrees, the temperature sensor mounted on the instrument panel of a vehicle senses it and imparts the information to the controller for further processing. The controller processes the information, decodes it in the desired format and gives the audio message as 'Switch ON AC for the driver and/or co-driver. When the AC is put ON, the glass of a window starts winding and window gets automatically closed as described above.
When the forward speed of a vehicle goes beyond 60 kmph, the vehicle speed sensor mounted on transmission gear pulser senses this information and imparts to the controller for processing. The controller processes the input data and actuates mechanism to close the window automatically and also gives the audio message for the passengers / occupants of the compartment as Window is going to close'.

In case of remote locking of a vehicle, the system actuates and closes the window automatically. In remote locking only mechanical action of closing the window takes place and there is no audio message regarding the closure of window glasses.
If there is error in the system or processor / control unit of the system is not able to process the data, the system goes into diagnostic mode and gives the visual message to the user / occupant of the vehicle that there is malfunction in the system by glowing yellow light on the "nstrument panel of a vehicle.
ADVANTAGES OF THE PRESENT INVENTION:
• The system provides safety alert for the passengers and drivers by giving the audio/voice message.
• The system provides time delay in order to move out the hot air from the inside of a vehicle in initial condition before closing the window automatically when AC is switched ON.
• It is an effortless system and no manual action is required to close the window.
• Window closing being automatic, the air conditioner will be faster and more efficient.
• Vehicle with this system will attract the customers.

WE CLAIM:-
1. An automatic window closing system for automotive vehicle comprising of a first sensor for sensing the air conditioner switch in on position, a second sensor for sensing rain, a third sensor for ambient temperature sensing, fourth sensor for vehicle speed sensing and fifth sensor for remote locking system sensing; a processing unit embedded with a particular logic and configured to receive the input signal from the said sensors; code it, process the signal from any one of the said sensors and decode to generate first out put to operate window latch for closing the window, and an audio message as second out put indicating the execution of task and third out put as visual indication informing the malfunction of system if any.
2. An automatic window closing system as claimed in claim 1 wherein the communication of signals from sensors to processing unit and then to the outputs such as mechanical action, audio and visual takes place wiring harness.
3. An automatic window closing system as claimed in claim 1 wherein the system activates on receipt of at least an input signal from the set of plurality of input signals and closes the window automatically.
4. An automatic window closing system as claimed claim 1 wherein the said air conditioner switch is provided in the instrument panel with the said sensor for sensing the switching on condition of air conditioner for closing the window and audio message out put of window closing,
5. An automatic window closing system as claimed in claim 1to 2 wherein the said rain sensor is mounted on the wind screen for sensing rain water for closing the window and audio message out put of window closing.

6. An automatic window closing system as claimed in claims 1 to 3 where in the said ambient temperature sensor is mounted in the instrument panel for sensing the temperature inside vehicle and sending input signal if the temperature is more than 24° C to generate audio message output to switch on air conditioner.
7. An automatic window closing system as claimed in claims 1 to 4 wherein the said sensor mounted on transmission gear pulsar to sense the speed and generate out put to close window, if speed is more than set value, and with audio message of window closing,
8. An automatic window closing system as claimed in claims 1 to 5 wherein the said remote locking system is generally provided in the ignition key.
9. An automatic window closing system as claimed in claims 1 to 6 wherein the said processor unit is configured to perform the task as illustrated in the flow chart.
10.An automatic window closing system as claimed in above claims wherein the system gives audio message indicating the execution of mechanical action of window closing for alerting the occupant of the vehicle as a part of safety,
11.An automatic window closing system as claimed in above claims wherein the system enters in diagnostic mode in case of malfunction in the system and alerts the occupant of the vehicle about the malfunction of the system by visual output on the integrated panel of the vehicle.
12. An automatic window closing system as claimed in claims 1 to 11 above and as herein described with reference to the figures of the accompanying specification.