Vehicle running management system

• US 6,081,756 A
• Filed: 08/26/1997
• Issued: 06/27/2000
• Est. Priority Date: 08/28/1996
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Mio, Masahiro, Aoki, Keiji
• Primary Examiner(s): LOUIS JACQUES, JACQUES H
• Application Number:
  US08/917,613
• Time in Patent Office: 1,036 Days
• Field of Search: 701/117, 701/23, 701/24, 701/25, 701/28, 701/300, 701/301, 701/96, 701/20, 340/933, 340/941, 340/942, 340/435, 340/436, 340/902-905, 340/937, 340/909, 180/168, 180/169, 180/167
• US Class Current: 701/23
• CPC Class Codes: G05D 1/0293 Convoy travelling

Abstract

A vehicle running management system manages running states of vehicles on a predetermined lane of a road, the predetermined lane being provided for automatically driven vehicles each of which has a communication function and a running control function, the vehicle running management system comprising a vehicle entrance detecting unit for detecting movement of a vehicle from a lane adjacent to the predetermined lane to the predetermined lane, and a control information communication unit for, when the vehicle entrance detecting unit detects the vehicle which has entered the predetermined lane, transmitting control information based on existence of the detected vehicle to an automatically driven vehicle behind the detected vehicle, so that the automatically driven vehicle can perform the running control based on the control information.

Claims

1. A vehicle running management system for managing running states of vehicles on a predetermined lane of a road, the predetermined lane being provided for automatically driven vehicles each of which has a communication function and a running control function, said vehicle running management system comprising:

vehicle entrance detecting means for detecting movement of a vehicle from an adjacent lane to the predetermined lane;

control information communication means for, when said vehicle entrance detecting means detects the vehicle which has entered the predetermined lane, transmitting control information based on existence of the detected vehicle to an automatically driven vehicle behind said detected vehicle, so that the automatically driven vehicle can perform the running control based on the control information;

vehicle type determination means for determining whether the vehicle detected by said vehicle entrance detecting means is an automatically driven type of vehicle;

position estimation means for estimating a position of the detected vehicle, after said vehicle type determination means determines that the vehicle detected by said vehicle entrance detecting means is not an automatically driven type of vehicle; and

control information deciding means for deciding the control information which should be transmitted to the automatically driven vehicle behind the detected vehicle based on the position of the detected vehicle which are estimated by said position estimation means, so that the automatically driven vehicle receives the control information and can perform the running control based on the control information.

2. The vehicle running management system as claimed in claim 1, wherein the control information transmitted by said control information communication means includes information used to increase a distance between the automatically driven vehicle and a vehicle immediately preceding the automatically driven vehicle.

3. The vehicle running management system as claimed in claim 1, wherein said position estimation means has a vehicle speed estimation means for estimating a vehicle speed of said detected vehicle, so that the position of the detected vehicle is estimated based on the estimated vehicle speed.

4. The vehicle running management system as claimed in claim 3, wherein said vehicle speed estimation means has means for estimating the vehicle speed based on a vehicle speed obtained from a result of the running control which are transmitted from an automatically driven vehicle immediately preceding the detected vehicle.

5. The vehicle running management system as claimed in claim 3 further comprising:

determination means for, every time a vehicle passes each of a plurality of points provided on the predetermined lane, determining whether the vehicle is the type of automatically driven vehicle, wherein said vehicle speed estimation means has means for estimating the vehicle speed based on the detected vehicle passing two points at which said determination means determines that the detected vehicle is not the automatically driven type vehicle.

6. A vehicle running management system which is provided as infrastructure and manages running states of vehicles on a predetermined lane of a road, the predetermined lane being provided for automatically driven vehicles each of which has a communication function and a running control function, said vehicle running management system comprising:

vehicle entrance detecting means for detecting a vehicle which enters the predetermined lane;

vehicle type determination means for determining a vehicle type of the detected vehicle; and

instruction means for supplying a control instruction, based on the vehicle type obtained by said vehicle type determination means, to an automatically driven vehicle behind said detected vehicle, so that the automatically driven vehicle can perform the running control based on the control instruction, wherein

when said vehicle type determination means determines that the vehicle type of the detected vehicle is not an automatically driven type, said instruction means supplies a control instruction for an Automatic Cruise Control mode.

7. The vehicle running management system as claimed in claim 6, wherein when said vehicle type determination means determines that the vehicle type of the detected vehicle is an automatically driven type, said instruction means supplies the control instruction for a platoon running mode.