Vehicle system

Patent metadata

Field	Value
Publication number	US-2022219723-A1
Application number	US-202217571028-A
Country	US
Kind code	A1
Filing date	Jan 7, 2022
Priority date	Jan 12, 2021
Publication date	Jul 14, 2022
Grant date	—

Abstract

A vehicle system includes: a map processing unit that creates local map data based on high accuracy map data and a position of an own vehicle; and an autonomous driving control unit that creates a travel plan for autonomous traveling of the own vehicle based on the local map data and controls traveling of the own vehicle according to the travel plan. The map processing unit creates multiple pieces of transmission data by dividing the local map data so as to correspond to regions on a map and transmits the multiple pieces of transmission data to the autonomous driving control unit. The map processing unit changes a shape and a size of the region on the map corresponding to each piece of transmission data based on selection information which decides a travel mode.

First claim

1 . A vehicle system comprising:
a map processing unit that creates local map data based on high accuracy map data and a position of an own vehicle by extracting data of regions near the own vehicle from the high accuracy map data; and an autonomous driving control unit that receives the local map data from the map processing unit, creates a travel plan for autonomous traveling of the own vehicle based on the local map data, and controls traveling of the own vehicle according to the travel plan, wherein the map processing unit creates multiple pieces of transmission data by dividing the local map data so as to correspond to regions on a map and transmits the multiple pieces of transmission data to the autonomous driving control unit, and the map processing unit changes a shape and a size of the region on the map corresponding to each piece of transmission data based on selection information which decides a travel mode.

2 . The vehicle system according to claim 1 , wherein the selection information can be set by a user.

3 . The vehicle system according to claim 1 , wherein the map processing unit creates the transmission data such that the transmission data is divided for each lane.

4 . The vehicle system according to claim 3 , further comprising a map guidance unit that, based on a set destination, sets a route to the destination,
wherein the map processing unit decides a recommended lane on which the own vehicle should travel based on the route to the destination, creates the transmission data so as to correspond to the recommended lane based on the selection information and the recommended lane, and transmits the transmission data corresponding to the recommended lane to the autonomous driving control unit.

5 . The vehicle system according to claim 1 , wherein in the high accuracy map data, a lane is represented by multiple nodes and links connecting the nodes, the links being provided with identification numbers, and
the map processing unit stores road additional information corresponding to the identification numbers, divides a link containing specific road additional information from the other links, and creates transmission data by adding the road additional information.

6 . The vehicle system according to claim 5 , wherein the road additional information includes information indicating that the lane is a region in which a reception level of a GNSS signal is lower than a prescribed level.

Assignees

• Honda Motor Co Ltd

Inventors

• Chikamori Hidetoshi
• Nakamura Kazumasa
• Konishi Hitoshi
• Harayama Takuji
• Masakawa Tomoaki
• Aso naofumi
• Matsuzawa Ryo
• Wang Zhaoqi

Classifications

• B60W60/001 Primary

  Planning or execution of driving tasks · CPC title

• G01C21/3492

  employing speed data or traffic data, e.g. real-time or historical (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) · CPC title

• G01C21/32

  Structuring or formatting of map data · CPC title

• G01C21/387 Primary

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

• G01C21/3893

  Transmission of map data from distributed sources, e.g. from roadside stations · CPC title