ROADWAY-INDUCED RIDE QUALITY RECONNAISSANCE AND ROUTE PLANNING

摘要

Route planning for road vehicles is performed taking into account a ride quality that results from the roadway conditions along road segments on a route. A plurality of vehicles equipped with controlled suspensions calculate ride quality indices as the vehicles move over a plurality of road segments. The plurality of vehicles transmit the ride quality indices tagged with respective geographic coordinates to an aggregating server. The aggregating server determines a composite ride quality index for each road segment. A subscriber generates a route planning request identifying an origin and a destination. At least one potential route is identified between the origin and the destination comprised of selected road segments. A route ride quality index is determined in response to the selected road segments, and the potential route and the route ride quality index are presented to the subscriber for selection.

主权项

1. A route planning system for road vehicles, comprising:
a ride quality database representing a plurality of road segments according to geographic coordinates; an agent coupled to the ride quality database and adapted to be coupled to a data network,
wherein the agent is configured to receive ride quality data via the data network from a plurality of vehicles traversing the road segments and to determine a composite ride quality index for each road segment according to the received ride quality data,
wherein the ride quality data comprises primary ride and secondary ride,
wherein primary ride corresponds to ride quality at a frequency of about 1-2 Hz, and secondary ride corresponds to ride quality at a frequency of about 10 Hz,wherein the ride quality data and the composite ride quality indices for each road segment are stored in the ride quality database in association with the respective road segment, andwherein the agent is configured to receive routing requests specifying a desired ride quality and to respond to the routing requests by retrieving road segments and the corresponding ride quality indices in response to the routing requests; and a route planner calculating potential routes and respective route indices by combining the ride quality indicies of the road segments in each potential route.