Accident avoidance system using an infrastructure system to convey location information between vehicles includes at least two vehicles approaching or traveling on a roadway and each having onboard, a position determining system onboard that receives satellite positioning signals from a plurality of satellites and determines location information based on the satellite positioning signals, a transmitter that transmits the location information for the vehicle to an infrastructure system, a receiver that receives location information for another vehicle from the infrastructure system, and an accident risk warning system that alerts its operator of a risk of an accident based on the location information for any other vehicles and map data representing the roadway including edges or lane boundaries of the roadway.

Vehicular communication arrangement and method

The present invention prevents execution of a detour route search, responsive to and in accordance with received VICS data, where certain conditions are not met. To this end, the system of the invention calculates a time RT1 required for a vehicle to move from its present location to a first point where the vehicle must turn to the right or left to follow a previously determined guidance route and also calculates a time CT required to conduct a route re-search based on the received VICS data. If RT1≦CT the system then performs a route re-search based on the received VICS data. On the other hand, if RT1<CT execution of the route re-search is prohibited.

Route search and navigation apparatus and storage medium storing computer programs for navigation processing with travel difficulty by-pass

A geographical database connected to a mobile radio network contains information about consumer services within the network and about a plurality of geographic areas into which the service area of the network is divided. When a mobile station seeks to obtain information from the database by entering one or more search key words, the network determines the current geographic location of the mobile station within the network. Both the search keys and the mobile station's current location are used to search the database and return to the mobile station information about available consumer services in different zones made up of geographic areas near its current location. The input and output from the database may be voice or text.

Geographical database for radio system

An adaptive vehicle control system that classifies a driver's driving style based on characteristic curve-handling maneuvers and road and traffic conditions. The system includes a plurality of vehicle sensors that detect various vehicle parameters. A maneuver identification processor receives the sensor signals to identify a characteristic maneuver of the vehicle and provides a maneuver identifier signal of the maneuver. The system also includes a traffic and road condition recognition processor that receives the sensor signals, and provides traffic condition signals identifying traffic conditions and road condition signals identifying road conditions. A style characterization processor receives the maneuver identifier signals, sensor signals from the vehicle sensors and the traffic and road condition signals, and classifies driving style based on the signals to classify the style of the driver driving the vehicle.

Adaptive vehicle control system with driving style recognition

A vehicle navigation system for providing route guidance in response to an input destination. The navigation system comprises a position sensing unit for sensing the location of the vehicle, a user input device for entering preferred route criteria and the desired destination, a display for outputting route guidance information, a controller, and a machine learning unit. The machine learning unit communicates with the controller and the user input, and monitors the user-selected preferred route criteria during a learning phase. Once the preferred route criteria have been learned, the machine learning unit enters an intervention phase whereby inferred user-preferred route criteria is transmitted directly to the controller. In this manner, users need not enter preferred route criteria upon each navigation sequence.

Vehicle navigation system having inferred user preferences

A method and apparatus (10) for providing navigation guidance via a land vehicle by providing a navigation route planner (24) having a road network database (12) for planning a navigation route along the road network, determining a current estimated position of the land vehicle, communicating maneuver instructions to a driver of the land vehicle at a predetermined maneuver distance base value before the land vehicle reaches a required maneuver along the planned navigation route, and detecting and quantifying current environmental travel conditions for assisting a navigation device in guiding the land vehicle along the planned navigation route.

Patrick Michael Ryan

Papers

Method and apparatus for providing navigation guidance