Claims:WE CLAIM
1. A device for visually indicating a speed of a motor vehicle, the device comprising:
one or more thermochromic paint coating layers disposed on an external surface of the motor vehicle, wherein each of the one or more thermochromic paint coating layers is indicative of a color based on a variation in a temperature;
one or more thermoelectric couple strips disposed underneath the corresponding one or more thermochromic paint coating layers and adapted to regulate the temperature of the corresponding one or more thermochromic paint coating layers;
one or more temperature sensors for sensing an instantaneous temperature on the external surface of the motor vehicle; and
a control unit configured to:
receive an instantaneous speed of the motor vehicle from one or more odometry devices of the motor vehicle and the instantaneous temperature from the one or more temperature sensors; and
configure the one or more thermoelectric couple strips to regulate temperatures of the one or more corresponding thermochromic paint coating layers, based on the instantaneous speed and the instantaneous temperature, to dynamically control indication of a color pattern associated with a range of instantaneous speed of the motor vehicle.

2. The device of claim 1, further comprising a thermal conductive layer between each of the one or more thermoelectric couple strips and each of the corresponding one or more thermochromic paint coating layers for propagation of heat from the one or more thermoelectric couple strips to the corresponding one or more thermochromic paint coating layers.

3. The device of claim 1, further comprising a thermal non-conductive layer between a thermochromic paint coating layer and an adjacent thermochromic paint coating layer, for minimizing heat dissipation between the thermochromic paint coating layer and the adjacent thermochromic paint coating layer.

4. The device of claim 1, wherein the one or more thermoelectric couple strips receive a voltage from the control unit, to increase or decrease temperature of the corresponding one or more thermochromic paint coating layers.

5. The device of claim 1, wherein the one or more thermoelectric couple strips increase or decrease temperatures of the corresponding one or more thermochromic paint coating layers, to display a color when the instantaneous speed is within a pre-determined range or outside of the pre-determined range.

6. The device of claim 1, further comprising a thermal regulation layer to dissipate heat or absorb heat, from the one or more thermoelectric couple strips.

7. The device of claim 1, wherein the external surface of the motor vehicle is an external surface of a bonnet of the motor vehicle, and wherein the one or more thermoelectric couple strips are integrated with the bonnet or disposed on the external surface of the bonnet.

8. The device of claim 1, wherein configuring the one or more thermoelectric couple strips comprises configuring the one or more thermoelectric couple strips to regulate temperatures of the one or more corresponding thermochromic paint coating layers based on the instantaneous speed while discounting the effect of instantaneous temperature.

9. The device of claim 1, wherein one or more images of the external surface of the motor vehicle are captured by one or more imaging devices, and wherein the one or more images are analyzed by an analytics unit to determine the range of instantaneous speed of the motor vehicle based on the indicated color pattern.

10. The device of claim 9, wherein the one or more imaging devices and the analytics unit are components of a speed monitoring device installed on at least one of another motor vehicle, a hand held device, or a fixed structure.

11. A method of visually indicating a speed of a motor vehicle, the method comprising:
receiving, by a control unit of a speed indicating device, an instantaneous speed of the motor vehicle from one or more odometry devices of the motor vehicle and an instantaneous temperature on an external surface of the motor vehicle from one or more temperature sensors; and
configuring, by the control unit, one or more thermoelectric couple strips to regulate temperatures of one or more corresponding thermochromic paint coating layers disposed on the external surface of the motor vehicle, based on the instantaneous speed and the instantaneous temperature, to dynamically control indication of a color pattern associated with a range of instantaneous speed of the motor vehicle.

12. The method of claim 11, wherein the one or more thermoelectric couple strips increase or decrease temperatures of the corresponding one or more thermochromic paint coating layers, for displaying a color when the instantaneous speed is within a pre-determined range or outside of the pre-determined range.

13. The method of claim 11, wherein configuring the one or more thermoelectric couple strips comprises configuring the one or more thermoelectric couple strips to regulate temperatures of the one or more corresponding thermochromic paint coating layers based on the instantaneous speed while discounting the effect of instantaneous temperature.

14. The method of claim 11, further comprising:
capturing one or more images of the external surface of the motor vehicle with one or more imaging devices; and
analyzing the one or more images to determine the range of instantaneous speed of the motor vehicle based on the indicated color pattern.

15. A motor vehicle for visually indicating its speed, the motor vehicle comprising:
one or more odometry devices to determine an instantaneous speed of the motor vehicle;
one or more thermochromic paint coating layers disposed on an external surface of the motor vehicle, wherein each of the one or more thermochromic paint coating layers is indicative of a color based on a variation in a temperature;
one or more thermoelectric couple strips disposed underneath the corresponding one or more thermochromic paint coating layers and adapted to regulate the temperature of the corresponding one or more thermochromic paint coating layers;
one or more temperature sensors for sensing an instantaneous temperature on the external surface of the motor vehicle; and
a control unit configured to:
receive an instantaneous speed of the motor vehicle from the one or more odometry devices and the instantaneous temperature from the one or more temperature sensors; and
configure the one or more thermoelectric couple strips to regulate temperatures of the one or more corresponding thermochromic paint coating layers, based on the instantaneous speed and the instantaneous temperature, to dynamically control indication of a color pattern associated with a range of instantaneous speed of the motor vehicle.

16. The motor vehicle of claim 15, wherein the external surface of the motor vehicle is an external surface of a bonnet of the motor vehicle, and wherein the one or more thermoelectric couple strips are integrated with the bonnet or disposed on the external surface of the bonnet.

17. The motor vehicle of claim 15, further comprising:
one or more imaging devices for capturing one or more images of an external surface of another motor vehicle; and
an analytics unit for analyzing the one or more images to determine the range of instantaneous speed of the another motor vehicle based on the color pattern indicated on an external surface of the another motor vehicle.

Dated this 21st day of November, 2017

R Ramya Rao
IN/PA-1607
Of K&S Partners
Agent for the Applicant , Description:TECHNICAL FIELD
This disclosure relates generally to motor vehicles, and more particularly to motor vehicle and device for visually indicating a speed of the motor vehicle, and method thereof.