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Method and Apparatus for Activating Brake Lights Based on Actual Rate of Deceleration of a Vehicle

IP.com Disclosure Number: IPCOM000192993D
Original Publication Date: 2010-Feb-07
Included in the Prior Art Database: 2010-Feb-07
Document File: 3 page(s) / 127K

Publishing Venue

IBM

Abstract

Disclosed is a method and apparatus for activating brake lights in a vehicle based on an actual rate of deceleration of the vehicle.

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Method and Apparatus for Activating Brake Lights Based on Actual Rate of Deceleration of a Vehicle

A method and apparatus is disclosed for activating brake lights in a vehicle based on an actual rate of deceleration of the vehicle.

In a routine movement of a vehicle, the vehicle may get decelerated due to various other factors apart from actual braking of the vehicle. These factors may be engine braking (engaging a lower gear), removing power to the engine at higher speeds (where wind resistance causes the vehicle to slow down quickly), driving up an incline (where gravity causes the vehicle to slow down quickly), or a plurality of mechanical incidents that can cause drag that slows the vehicle.

The apparatus as shown in Fig. 1 includes a deceleration detector that detects deceleration caused by any of the above mentioned factors including actual braking by
a driver of the vehicle. Consider an exemplary scenario wherein a vehicle is climbing up an incline. The gravity may cause the vehicle to slow down irrespective of the driver applying the brakes.

Figure 1

A gimbel device sensor included in the apparatus senses real-time inclination of the vehicle. Thereafter, a micro-controller included in the apparatus is informed about the inclination of the vehicle. The micro-controller takes into account the impact of gravity to understand the gravity induced "acceleration" or "deceleration" that an accelerometer will otherwise interpret as being caused by a change in velocity of the vehicle.

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In response to receiving the inputs from the deceleration detector and the gimbel device, the micro-controller normalizes the deceleration...