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A method of autonomous cars approaching and passing narrow roads Disclosure Number: IPCOM000250585D
Publication Date: 2017-Aug-04
Document File: 2 page(s) / 22K

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A Method of Autonomous Cars Approaching and Passing Narrow Roads

Disclosed is a system for allowing autonomous cars to pass another autonomous car or a manually operated car when the road is too narrow for them to pass normally.

Country lanes and congested city streets can often involve narrow regions where it is not possible for two vehicles to pass each other simultaneously. When humans are operating both vehicles they can make the decision about who needs to give way to who, and what actions needs to be taken so both cars get past each other. If one or more vehicles are autonomous, operated by a computer rather than a human, then a separate process is necessary to allow all vehicles to get by each other along the narrow road efficiently.

The system described in this document makes use of sensors in the vehicle to track the width of the road, and using this data when encountering another vehicle. The next steps taken then depend on whether the vehicle encountered is operated by a human or if it is another autonomous vehicle.

This solution allows autonomous vehicles to pass each other using the most efficient route possible and accounts for variable conditions in the route that simple knowledge of a map would not account for.

The system begins by periodically polling the road width using proximity sensors. When the road width is narrow enough that passing another vehicle will be difficult the vehicle will continuously measure the road width and keep track of points which are wide enough to allow passing.

When the vehicle mee...