Vehicle control system and server

Patent metadata

Field	Value
Publication number	US-11862012-B2
Application number	US-201917292532-A
Country	US
Kind code	B2
Filing date	Nov 8, 2019
Priority date	Nov 29, 2018
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A vehicle control system includes a control unit for vehicle control and a server which distributes map information to the control unit. The map information includes information on a first type of road whereby full or partial driving assistance of the vehicle is possible, and information on a second type whereby full or partial driving assistance of the vehicle are not possible. The server includes an output unit which transmits information on a second type of road existing in a predetermined range from a first type of road on which the vehicle is traveling, and such that the first and second types of road form a predetermined angle or less. The control unit includes a map management unit including information on the first and second types of road, and a vehicle control unit controlling the vehicle by using the information on the first and second types of road.

First claim

The invention claimed is:

1. A vehicle control system comprising:
an electronic control unit which controls a vehicle; and
a server which distributes map information to the electronic control unit,
wherein the map information includes information on a first type of road on which autonomous driving or driving assistance of the vehicle is possible, and information on a second type of road on which neither the autonomous driving nor the driving assistance of the vehicle are possible,
the server transmits, to the electronic control unit, information on the second type of road that exists in a predetermined non-zero range from the first type of road on which the vehicle is traveling, and that is formed so that the first type of road and the second type of road run side by side in a predetermined angle or less, and
the electronic control unit includes one or more processors and one or more non-transitory computer-readable storage media, the non-transitory computer- readable storage media having stored thereon at least:
a map management unit which manages the information on the first type of road and the information on the second type of road received from the server, and
a vehicle control unit which controls traveling of the vehicle by using the information on the first type of road and the information on the second type of road.

2. The vehicle control system according to claim 1 , wherein the map management unit includes a memory which stores the information on the first type of road and the information on the second type of road, and
when a route along which the vehicle is to travel is collated with the information on the first type of road and the information on the second type of road, and a lane in which the vehicle is to travel is determined, the vehicle control unit determines that the autonomous driving is possible.

3. The vehicle control system according to claim 1 , wherein the information on the first type of road and the information on the second type of road are divided into segments, and
the server specifies, as the second type of road existing in a predetermined range from the first type of road on which the vehicle is traveling, the second type of road existing in a rectangle created by connecting endpoints of perpendicular lines extended by a predetermined distance from endpoints of the segments of the first type of road.

4. The vehicle control system according to claim 1 , wherein the information on the first type of road and the information on the second type of road are divided into predetermined meshes, and
the server specifies the information on the second type of road to be transmitted to the electronic control unit in a unit of mesh.

5. The vehicle control system according to claim 4 , wherein in a case where, in a region that includes a plurality of meshes including a mesh in which both a segment of the first type of road and a segment of the second type of road exist, extended lines of two segments pass through the same side of an angle determination area, the server determines that the first type of road and the second type of road run side by side in the predetermined angle or less.

6. The vehicle control system according to claim 1 , wherein the information on the first type of road and the information on the second type of road are divided into segments, and
in a case where an angle formed between a direction of the segment of the first type of road and a direction of the segment of the second type of road is less than the predetermined angle, the server determines that the first type of road and the second type of road run side by side in the predetermined angle or less.

7. A server which distributes map information to an electronic control unit mounted on a vehicle, the server comprising:
a processor which performs predetermined processing to implement each functional unit; and
a memory which is accessible by the computation device,
wherein the map information includes information on the first type of road on which autonomous driving or driving assistance of the vehicle is possible, and information on the second type of road on which neither the autonomous driving nor the driving assistance of the vehicle are possible, and
the computation device transmits, to the electronic control unit, information on a second type of road that exists in a predetermined non-zero range from a first type of road on which the vehicle is traveling, and that is formed so that the first type of road and the second type of road run side by side in a predetermined angle or less.

8. The server according to claim 7 , wherein the information on the second type of road transmitted to the electronic control unit is used to determine whether or not the autonomous driving is possible.

9. The server according to claim 7 , wherein the information on the first type of road and the information on the second type of road are divided into segments, and
the server specifies, as the second type of road existing in a predetermined range from the first type of road on which the vehicle is traveling, the second type of road existing in a rectangle created by connecting endpoints of perpendicular lines extended by a predetermined distance from endpoints of the segments of the first type of road.

10. The server according to claim 7 , wherein the information on the first type of road and the information on the second type of road are divided into predetermined meshes, and
the server specifies the information on the second type of road to be transmitted to the electronic control unit in a unit of mesh.

11. The server according to claim 10 , wherein in a case where, in a region that includes a plurality of meshes including a mesh in which both a segment of the first type of road and a segment of the second type of road exist, extended lines of two segments pass through the same side of an angle determination area, the server determines that the first type of road and the second type of road run side by side in the predetermined angle or less.

12. The server according to claim 7 , wherein the information on the first type of road and the information on the second type of road are divided into segments, and
in a case where an angle formed between a direction of the segment of the first type of road and a direction of the segment of the second type of road is less than the predetermined angle, the server determines that the first type of road and the second type of road run side by side in the predetermined angle or less.

Assignees

• Hitachi Astemo Ltd

Inventors

• Ando Koichi
• AMPO Keisuke
• Lin Tao

Classifications

• G01C21/3896

  Transmission of map data from central databases · CPC title

• G08G1/0141 Primary

  for traffic information dissemination · CPC title

• B60W60/001

  Planning or execution of driving tasks · CPC title

• G01C21/387

  Organisation of map data, e.g. version management or database structures · CPC title

• G01C21/3815

  Road data · CPC title