Surety is performing system maintenance this weekend. Electronic date stamps on new Prior Art Database disclosures may be delayed.
Browse Prior Art Database

Learning steps for vehicle auto-adaptive speed sensors

IP.com Disclosure Number: IPCOM000240375D
Publication Date: 2015-Jan-28
Document File: 3 page(s) / 59K

Publishing Venue

The IP.com Prior Art Database


In intermittent traffic jams (start, drive a few tens of seconds and stop), car drivers (accelerating fast and stopping hard) do not adopt a driving behavior that can smooth the traffic behind them (they cannot influence the traffic in front of them). In this article we present a method to allow vehicles to auto adapt their speed in both the acceleration and deceleration.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 53% of the total text.

Page 01 of 3

Learning steps for vehicle auto-adaptive speed sensors

Road traffic jams with cars using auto-adaptive speed sensors
Auto-adaptive speed sensors enable a partial solution IF the car in front is already adopting a smooth behavior. In the opposite case, the current car sensor enables the car to accelerate fast and stop hard (where the patent will play a role)

Such current behaviors result in waste of energy (fuel and brake pads) without winning/saving any time as the car in front of the queue is dictating the overall time schedule
Teach the auto-adaptive speed sensor to behave in a different manner to adapt itself to the traffic jam conditions using:
an auto-adaptive speed sensor (already available on cars),
a computer,
an algorithm,
a set of vehicle manufacturer parameters,
can work on regular and on driverless vehicles
by modifying two key characteristics (acceleration and security distance) depending on a parameter table hereafter described
A sensor registering all car stops in the last 10 minutes with the time when the stop happened,
 A table indicating the percentage of change to be applied to the auto-adaptive speed sensor parameters based on the number of stops per unit of time (between 1 and 10 minutes),
 An action on the vehicle manufacturer auto-adaptive speed sensor parameters in real-time,
 An option for the driver to set up personal parameters to change the table figures,
 Optionally vehicle navigation programs (with GPS) can speed up the table actions,
 No need for any communication with any other vehicle,
Cars tend to accelerate fast and stop hard each time there is a new start in a jam situation.

Let's describe the overall situation in Figure 1 from the current jam situation and what we propose.

Letters in Figure 1 indicate cars and (x) indicate instantaneous speed. Interim steps not shown for presentation clarity.

Figure 1. On the left current jam behaviour. On the right future technique

On the right side, car B is equipped with the technology device. Unless step 3 the behaviour is the same before and after invention.

All cars behind B (including B) consume less fuel and brake pads.

Nobody is losing time as at the last stop, they all gather behind car A.

If car C had a similar device, then the action to smooth the traffic wo...