FORM 2
THE PATENT ACT, 1970,
(39 OF 1970)
&
THE PATENTS RULE, 2003
COMPLETE SPECIFICATION
(SEE SECTION 10; RULE 13)
"REAL TIME DRIVING PATTERN IDENTIFICATION AND ALERT SYSTEM IN
VEHICLES"
MAHINDRA & MAHINDRA LIMITED
A COMPANY REGISTERED UNDER THE
PROVISIONS OF COMPANIES ACT, 1956
HAVING ADDRESS AT R & D CENTER,
AUTOMOTIVE SECTOR,
89, M.I.D.C., SATPUR,
NASHIK - 422 007,
MAHARASHTRA, INDIA.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES AND ASCERTAINS THE NATURE OF THIS INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED

FIELD OF THE INVENTION:-
The present invention relates to real-time driving pattern identification and alert system for achieving better fuel economy in vehicles. The invention assists the driver to align drive profile to the best fuel efficiency zone and hence reduces the fuel consumption.
BACKGROUND OF THE INVENTION:-
Currently the Vehicle drivers are not very conscious on driving the vehicle towards better Fuel Economy, low emission and unknowingly drive the vehicle in an improper way. Such driving pattern leads to fuel wastage and increase emission. For example: Aggressive Acceleration, Aggressive Braking, Pressing clutch on a drive, in-appropriate gear selection, over speed, Unwanted Idling, etc.
The proposed system encourages the driver towards an eco-friendly drive which reduces fuel consumption & curtails emissions. The system provides real-time alerts on in-appropriate gear selection, Clutch override, over speed etc. The system also provides bar graph representation depending on the driving pattern by awarding "Ecoscore" which motivates him towards eco-friendly driving.
OBJECTIVES OF THE PRESENT INVENTION:-
The main objective of the present invention is to provide real time driving pattern identification system for the automotive vehicles.
Another objective of the present invention is to provide real time driving pattern identification system with the alert backup for the drivers in the vehicle.
Yet another objective of the present invention is to provide real time driving pattern identification system with the alert backup for the drivers in the vehicle that assist in improving the driving behaviour of the driver and thereby enhances fuel efficiency.

BRIEF DESCRIPTION OF THE FIGURES:-
Figure 1 shows the block diagram of the real time driving pattern identification and alert system in accordance with the present invention.
Figure 2 shows flowchart disclosing the working the system in accordance with the present invention.
DESCRIPTION OF THE PRESENT INVENTION:-
The Infotainment HMI screen is provided with the bar graph representation which dynamically varies depending on the driving pattern of the driver. This invention alsoillustrates the driving pattern of the driver, scales it and alerts the driver for improving his driving behaviour towards better fuel economy and reduced emissions. The driving profile of each drive in the vehicle is monitored using the vehicle parameters in the CAN bus. CAN bus (controller area network bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer. CAN bus is a message based protocol, designed specifically for automotive applications.
Important vehicle parameters like Acceleration Pedal Position, Engine Speed, Vehicle Speed, Clutch Status, Brake Pedal status, Gear Status, TPMS (tyre pressure monitoring system) signals are monitored and dynamic alerts are provided to the user which will reduce fuel consumption. The logic embedded in the system comprises of modules like Aggressive Acceleration, Aggressive Braking, Clutch Override, Gear RPM mismatch, over speeding, Vehicle Idling, TPMS, AC Usage, and Coasting. Based on these modules, a time based algorithm is implemented to rate the driver in the range of 0 to 100. This rating is referred as "Ecoscore" and dynamically varies based on the driving profile of the driver. Dynamic alerts such as Unwanted Idling alerts, TPMS alerts, and AC Usage Regulation alerts shall be provided as part of the "Ecoscore" concept.

Further, the "Ecoscore" concept is capable of tracking the vehicle movement through the state-of-the-art GPS system. The GPS (Global Positioning System) is a space based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the earth where there is an unobstructed line of sight to four or more GPS satellites.
Each drive includes vital drive parameters like the Source Location, Destination Location, Drive Start time, Drive End time, Ecoscore, Distance covered, Top speed, Average Speed, Vehicle Idling and Fuel Economy level (in Kmpl). This complete system is incorporated in infotainment display screen and the infotainment system is capable of storing the data of current and previous drive. The real-time drive data and drive history is then communicated to the mobile application through Bluetooth communication. The mobile phone in turn uploads the trip information to the server provided the mobile phone is equipped with mobile internet communication. The system also has the provision to post current drive details in social media via Facebook, Twitter, and Google+ from infotainment system of the vehicle.
The system has the provision to capture drive profile of multiple drivers by modifying the driver name in the mobile application. Once, the driver name is changed in the mobile application, the user has the option to reset the trip. By this way, the invention enables personalized drive profile evaluation in the same vehicle.
Referring to Figure 1, the Infotainment System (IS) of the vehicle fetches the critical vehicle parameters from the various ECU's (like EMS, ESP, MBFM, HVAC, IC etc) in the vehicle. All the critical parameters pertaining to driver performance are processed based on the algorithm and a rating is provided in the IS which is referred as Ecoscore. This rating also illustrates the acceleration, braking, gear selection and speed profile of the drive through bar graph representation in the Infotainment HMI screen.
The IS also has the provision to transfer the processed data through Bluetooth communication to the Android-based mobile application. This enables the user to

view the data in the mobile in addition to the IS. The mobile application also enables the user to upload the processed data in server which can be used for future analysis. This helps the offline examination of the driving profile data. The system also empowers the user to post the user's Ecoscore in the social media (Facebook, Google plus & Twitter) through the mobile application.
Figure 2 shows flowchart disclosing the working of the system in accordance with the present invention.
Referring to Figure 2, the system begins with the ignition status (STSJ'GN) check. Once the vehicle is cranked and the engine is triggered, the controller verifies the ENGINE OFF TIME which is the duration between the Ignition off to Ignition on cycle. If the ENGINE OFF TIME is greater than the ENGINE OFF THR, then a new trip is created. The new trip is characterized by Trip-ID, Start time, Source location and these parameters are logged in the Infotainment system of the vehicle. The next block includes the ESC-ACTIVE status check which reflects the intervention of the Engine Stability Control. If the system detects any intervention from ESC, then the algorithm calculation may be erroneous. Hence, when the ESC intervention is detected, the algorithm stops and the user shall not have the option to restart. The algorithm periodically checks the ESC-ACTIVE status.
The Ecoindex Refresh module periodically calculates the Ecoscore value which is estimation of the duration of all the violations with respect to the complete duration of the trip. All the violations are scaled in proportion to the intensity of each violation instance. The algorithm also initiates the Bluetooth communication module to communicate the processed data to the mobile application. The system consists of following driving-violation modules.
1. Aggressive Acceleration: This estimates the duration of the aggressive acceleration profile in the drive.
2. Aggressive Braking: This estimates the duration of aggressive deceleration profile in the drive.
3. Clutch Override: This estimates how long the driver is overriding the clutch and gives an indication with a real-time alert "Clutch Override"

4. Over speed: This estimates the duration over which the vehicle is driven at a speed greater than the threshold. Once the vehicle speed crosses the specified threshold an alert "Over Speed" is displayed in the Infotainment system.
5. Gear RPM Mismatch: The algorithm fetches vehicle parameters through the CAN bus. The parameters are compared for the thresholds specific to the gear. If the thresholds are exceeded, then the system shall alert the user with gear up indication.
6. Unwanted Idling: The module will estimate how long the vehicle is in idle condition and also alerts the user to use the Micro-Hybrid technology to avoid fuel wastage.
7. Inappropriate AC Usage: From the CAN signals, if the difference in INTAKE_AIR_TEMP (ambient) and INCAR_TEMP (in-cabin) temperature is below the threshold, the system will pop up a message for optimum ac set point.
8. Tyre Pressure Violation Monitoring: Based on the inputs from TPMS on CAN, alert is given to the driver for tyre Inflation.
9. Coasting: Based on Vehicle information, the coasting duration will be estimated. The Ecoscore will be increased proportionately depending on coasting duration.
The present invention incorporates multiple driver violation detection mechanisms like Vehicle Idling, Gear RPM mismatch, over speeding, Tire Pressure Management System, Clutch Override. It enables the user to dynamically check the previous score, Fuel Economy level, drive duration, distance covered, maximum speed and average speed. It provides a dynamic alert to the driver through infotainment system, which enables the driver to improve the driving behaviour like Gear Shift Indication, Start/Stop usage, AC Usage Regulation. Further, it supports the access of the drive data through mobile phone application and through online mode using a dedicated web page. This in turn gives access to database management for fleet managers. It allows the user to socialize the achieved score through Facebook, Twitter, and Google Plus. The system of the present invention enlightens the user with areas of driving improvement and violations committed which shall help him to improve

the score. It supports the password protection feature to access the database in infotainment system thereby preventing unauthorized access.
THE TECHNICAL ADVANTAGES OF THE SYSTEM DISCLOSED ABOVE ARE AS UNDER:-
- Improve the driving behaviour which enhances fuel efficiency.
- Provides Real time Alerts to the driver for areas of improvements/ violations in the driving pattern.
- Reduces the carbon footprint in the environment.
- Real time tracking of vehicle movement for fleet management.
- Drive histories can be accessed from server at any point of time.

WE CLAIM:-
1. Real time driving pattern identification and alert system comprises of the infotainment HMI screen, controller, processing unit, micro-controllers, CAN (controller area network) bus, memory, user interface and communication protocols such as bluetooth, wherein the said infotainment HMI screen of the system is provided with the bar graph representation which dynamically varies depending on the driving pattern of the driver.
2. Real time driving pattern identification and alert system as claimed in claim 1, wherein CAN bus (controller area network bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer; the said CAN bus is a message based protocol, designed specifically for automotive applications.
3. Real time driving pattern identification and alert system as claimed in claim 1 wherein the processor of the system is embedded with the modules such as aggressive acceleration, aggressive braking, clutch override, gear RPM mismatch, over speeding, vehicle idling, TPMS, AC Usage, and Coasting.
4. Real time driving pattern identification and alert system wherein the said system is capable of storing the data of current and previous drive; and the system is configured to communicate the real time drive data and drive history to the mobile application through Bluetooth communication, which in turn uploads the trip information to the server provided therefor.
5. Real time driving pattern identification and alert system wherein the system functions in the sequential actions as below,
system begins with the ignition status (STSJGN) check;
once the vehicle is cranked and the engine is triggered, the controller
of the system verifies the ENGINE OFF TIME which is the duration
between the Ignition off to Ignition on cycle;

- if the ENGINE OFF TIME is greater than the ENGINE OFF THR, then a new trip is created which is characterized by Trip-ID, Start time, Source location and these parameters are logged in the user interface of the system;
if the ESC intervention is detected, the processor of the system stops and the user shall not have the option to restart; thus the processor checks ESC-ACTIVE status.