Intelligent public transit system using dual-mode vehicles

• US 6,249,724 B1
• Filed: 09/15/1999
• Issued: 06/19/2001
• Est. Priority Date: 09/15/1999
• Status: Expired due to Term

• Current Assignee: Mccrary Personal Transport System, LLC
• Original Assignee: Mccrary Personal Transport System, LLC
• Inventors: McCrary, Homer T.
• Primary Examiner(s): Camby, Richard M.
• Application Number:
  US09/398,908
• Time in Patent Office: 643 Days
• Field of Search: 701/117, 701/118, 701/119, 701/23, 701/48, 701/24, 701/25, 701/26, 318/587, 180/167, 180/168, 180/169, 180/170-179
• US Class Current: 701/24
• CPC Class Codes: G05D 1/0234 using optical markers or beacons optical beacons per se G01S1/70
• CPC Class Codes: G05D 1/0255 using acoustic signals, e.g. ultra-sonic singals sonar systems designed for anti-collision purposes G01S15/93
• CPC Class Codes: G05D 1/0297 by controlling means in a control room
• CPC Class Codes: G08G 1/22 Platooning, i.e. convoy of communicating vehicles

Abstract

A unique transit system incorporates at least one internally powered, wheeled, transport vehicle having both manual controls enabling a user to drive the vehicle on a surface street and an on-board computer (OBC) system enabling software control of at least vehicle steering and velocity. A controlled roadway system having a roadway surface upon which the transport vehicle runs on its internal power on the same wheels as on surface streets is provided as well. On surface streets off the controlled roadway the manual controls are active, and on the controlled roadway the software controls are active. Manual or computer control depends on whether the vehicle is on the controlled roadway or surface streets. The OBC communicates with a Master computer for the controlled roadway, providing a range of functions. The transport vehicles operate at a fixed and constant speed on the controlled roadway system.

Claims

1. A computer system for controlling a mass transport roadway system having internally powered, wheeled, transport vehicles with both manual controls enabling an operator to drive the vehicles on a surface street and an on-board computer (OBC) system in individual ones of the vehicles enabling software control of at least vehicle steering and velocity, and a controlled roadway system having a roadway surface upon which the transport vehicles run on their own internal power on the same wheels as on surface streets, the computer system comprising:

a master computer managing access to and movement of vehicles on the controlled roadway; and

individual on-board computers (OBCs) in individual ones of the transport vehicles;

an Internet connection enabling the master computer to host a Web page accessible to the users of the transport vehicles for negotiating trip Itineraries for transport vehicles on the controlled roadway;

characterized in that, while traveling on surface streets transport vehicles are controlled by operator input to the OBC, and while traveling on the controlled roadway, the transport vehicles are under control of the master computer, and in that the master computer controls a destination for transport vehicles based on the association of itineraries negotiated on the Web page with vehicles on the controlled roadway.

2. The system of claim 1 wherein control passes from manual control to master computer control upon individual ones of the vehicles entering the controlled roadway, and from master computer to manual control upon individual ones of the vehicles leaving the controlled roadway.

3. The system of claim 1 wherein the manual controls operate by operator input to the OBC, which controls vehicle velocity and steering, and wherein master computer control operates by input from the master computer to the OBC, which controls vehicle velocity and steering.

4. The system of claim 3 wherein individual ones of the vehicles comprise a wireless communication link, and the master computer communicates with vehicles over the wireless communication link.

5. The system of claim 1 wherein the master computer system maps the controlled roadway into a continuous stream of fixed-length virtual packets traveling at a constant speed, identifies the packets in a fixed number uniquely, identifies all compatible transport vehicles uniquely through their individual OBCs, and controls transport vehicles to occupy virtual packets, marking and tracking packets in real time as occupied by a vehicle or unoccupied.

6. The system of claim 5 wherein, with vehicles occupying virtual packets in the controlled roadway, the master computer system controls speed of the vehicles through communicating through the OBCs to maintain in-line distance between vehicles on the controlled roadway.

7. The system of claim 5 wherein the controlled roadway includes main roadways and both entrance and exit ramps, and wherein the master computer, in bringing a vehicle up an entrance ramp to a main roadway, first identifies an unoccupied virtual packet approaching the entrance ramp on the main roadway, and accelerates the vehicle on the entrance ramp to enter the main roadway at the constant speed of the virtual packets such that the vehicle merges with the unoccupied virtual packet at the constant speed of the virtual packets.

8. The system of claim 7 wherein the master computer marks the unoccupied packet as occupied as the vehicle coming up the entrance merges with the virtual packet.

9. The system of claim 7 wherein the master computer, in bringing a vehicle onto the main roadway and marking the virtual packet with which the vehicle merges as occupied also records a pre-planned exit ramp for the vehicle, and as the vehicle approaches the pre-planned exit ramp, guides the vehicle onto the exit ramp, marking the virtual packet the vehicle occupied as unoccupied as the vehicle leaves the main roadway.

10. The system of claim 1 wherein the includes at least an approximate day and time of entry to the controlled roadway, an entrance point, and an exit point.

11. The system of claim 10 wherein, at the time of negotiating an itinerary, the master computer queries the OBC of the candidate vehicle for suitability for travel on the controlled roadway.

12. The system of claim 10 wherein the master computer keeps accounts for each candidate vehicle authorized to travel the controlled roadway, and, at the time of negotiating an itinerary, updates the account for the candidate vehicle.

13. The system of claim 9 wherein the master computer, in managing exit of a vehicle from the controlled roadway, through communication with the OBC of the vehicle, causes the vehicle to steer by proximity to a side barrier to just one side of the vehicle.

14. A method for managing traffic on a controlled roadway having entrance and exit ramps and vehicles enabled to travel on and off the controlled roadway, comprising steps of:

(a) mapping, by a master computer, a dynamic stream of a fixed number of virtual packets onto the controlled roadway, the virtual packets moving continuously at constant speed on the controlled roadway;

(b) merging vehicles from entrance ramps onto the controlled roadway into virtual packets, marking the merged packets as occupied; and

(c) moving vehicles from the controlled roadway onto exit ramps, marking the vacated virtual packets as unoccupied.